1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2017 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 26.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 AC_CONFIG_MACRO_DIR(m4)
73 AC_CHECK_PROGS(XCRUN, [xcrun])
74 if test -n "$XCRUN"; then
75 if test -z "$MAKE"; then
76 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
77 dnl the usual MAKE variable that 'make' itself uses.
78 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
79 if test -z "$MAKE_PROG"; then
82 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
87 dnl Check for GNU Make and possibly set MAKE.
88 [emacs_check_gnu_make ()
90 emacs_makeout=`($1 --version) 2>/dev/null` &&
91 case $emacs_makeout in
92 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
93 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
94 ac_path_MAKE_found=:;;
97 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
98 [ac_path_MAKE_found=false
99 if test -n "$MAKE"; then
100 emacs_check_gnu_make "$MAKE"
101 ac_cv_path_MAKE=$MAKE
103 emacs_tried_make=false
104 emacs_tried_gmake=false
105 emacs_tried_gnumake=false
106 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
107 [[emacs_check_gnu_make "$ac_path_MAKE"
108 if $ac_path_MAKE_found; then
109 # Use the fully-qualified program name only if the basename
110 # would not resolve to it.
111 if eval \$emacs_tried_$ac_prog; then
112 ac_cv_path_MAKE=$ac_path_MAKE
114 ac_cv_path_MAKE=$ac_prog
117 eval emacs_tried_$ac_prog=:]])
119 $ac_path_MAKE_found || {
120 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
121 If you have it installed under another name, configure with 'MAKE=...'.
122 For example, run '$0 MAKE=gnu-make'.]])
124 MAKE=$ac_cv_path_MAKE
127 dnl Canonicalize the configuration name.
133 if test -z "$host_alias"; then
135 # No --host argument was given to 'configure'; therefore $host
136 # was set to a default value based on the build platform. But
137 # this default value may be wrong if we are building from a
138 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
139 # Therefore, we'll try to get the right host platform from the
142 AC_MSG_CHECKING([the compiler's target])
143 if test -z "$CC"; then
148 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
152 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
153 Please explicitly provide --host.])
155 *) AC_MSG_WARN([Compiler reported non-standard target.
156 Defaulting to $host.])
159 AC_MSG_RESULT([$host])
162 . $srcdir/nt/mingw-cfg.site
166 # srcdir is an absolute path. In this case, force the format
167 # "/c/foo/bar", to simplify later conversions to native Windows
168 # format ("c:/foo/bar").
169 srcdir=`cd "${srcdir}" && pwd -W`
170 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
171 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
177 configuration=${host_alias-${build_alias-$host}}
179 dnl Support for --program-prefix, --program-suffix and
180 dnl --program-transform-name options
183 dnl It is important that variables on the RHS not be expanded here,
184 dnl hence the single quotes. This is per the GNU coding standards, see
185 dnl (autoconf) Installation Directory Variables
186 dnl See also epaths.h below.
187 lispdir='${datadir}/emacs/${version}/lisp'
188 standardlisppath='${lispdir}'
189 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
190 '${datadir}/emacs/site-lisp'
191 lisppath='${locallisppath}:${standardlisppath}'
192 etcdir='${datadir}/emacs/${version}/etc'
193 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
194 etcdocdir='${datadir}/emacs/${version}/etc'
195 gamedir='${localstatedir}/games/emacs'
197 dnl Special option to disable the most of other options.
199 [AS_HELP_STRING([--without-all],
200 [omit almost all features and build
201 small executable with minimal dependencies])],
202 [with_features=$withval],
205 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
206 dnl Create a new --with option that defaults to being disabled.
207 dnl NAME is the base name of the option. The shell variable with_NAME
208 dnl will be set to either the user's value (if the option is
209 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
210 dnl option is not specified). Note that the shell variable name is
211 dnl constructed as autoconf does, by replacing non-alphanumeric
212 dnl characters with "_".
213 dnl HELP-STRING is the help text for the option.
214 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
215 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
216 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
219 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
220 dnl Create a new --with option that defaults to $with_features.
221 dnl NAME is the base name of the option. The shell variable with_NAME
222 dnl will be set either to 'no' (for a plain --without-NAME) or to
223 dnl 'yes' (if the option is not specified). Note that the shell
224 dnl variable name is constructed as autoconf does, by replacing
225 dnl non-alphanumeric characters with "_".
226 dnl HELP-STRING is the help text for the option.
227 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
228 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
229 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
232 # FIXME: The default options '--without-mailutils --with-pop' result
233 # in a movemail implementation that supports only unencrypted POP3
234 # connections. Encrypted connections should be the default.
236 OPTION_DEFAULT_OFF([mailutils],
237 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
238 options are irrelevant])
239 if test "$with_mailutils" = no; then
242 AC_SUBST([with_mailutils])
244 OPTION_DEFAULT_ON([pop],
245 [don't support POP mail retrieval with movemail (--without-pop or
246 --with-mailutils is recommended, as movemail POP is insecure)])
247 if test "$with_pop" = yes; then
248 AC_DEFINE(MAIL_USE_POP)
250 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
252 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
253 if test "$with_kerberos" != no; then
256 AH_TEMPLATE(KERBEROS,
257 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
259 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
260 if test "${with_kerberos5}" != no; then
261 if test "${with_kerberos}" = no; then
265 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
268 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
269 dnl FIXME hesiod support may not be present, so it seems like an error
270 dnl to define, or at least use, this unconditionally.
271 if test "$with_hesiod" != no; then
272 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
275 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
276 if test "$with_mail_unlink" != no; then
277 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
280 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
281 [string giving default POP mail host])],
282 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
284 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
285 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
286 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
287 [ case "${withval}" in
288 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
289 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
290 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
295 [with_sound=$with_features])
297 dnl FIXME currently it is not the last.
298 dnl This should be the last --with option, because --with-x is
299 dnl added later on when we find the file name of X, and it's best to
300 dnl keep them together visually.
301 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
302 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
303 [ case "${withval}" in
304 y | ye | yes ) val=gtk ;;
306 l | lu | luc | luci | lucid ) val=lucid ;;
307 a | at | ath | athe | athen | athena ) val=athena ;;
308 m | mo | mot | moti | motif ) val=motif ;;
309 g | gt | gtk ) val=gtk ;;
313 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
314 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
315 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
316 'athena' and 'lucid' are synonyms.])
322 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
323 if test "$with_wide_int" = yes; then
324 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
327 dnl _ON results in a '--without' option in the --help output, so
328 dnl the help text should refer to "don't compile", etc.
329 with_xpm_set=${with_xpm+set}
330 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
331 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
332 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
333 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
334 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
335 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
336 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
337 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
338 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
339 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
341 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
342 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
343 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
345 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
346 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
347 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
348 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
349 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
350 On by default on macOS.])],[],[with_ns=maybe])
351 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
353 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
354 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
355 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
356 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
357 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
358 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
359 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
360 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
361 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
363 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
364 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
365 [ case "${withval}" in
366 y | ye | yes ) val=yes ;;
368 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
369 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
370 g | gf | gfi | gfil | gfile ) val=gfile ;;
371 w | w3 | w32 ) val=w32 ;;
372 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
373 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
374 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
375 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
378 with_file_notification=$val
380 [with_file_notification=$with_features])
382 OPTION_DEFAULT_OFF([xwidgets],
383 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
385 ## For the times when you want to build Emacs but don't have
386 ## a suitable makeinfo, and can live without the manuals.
387 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
388 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
390 ## Makefile.in needs the cache file name.
393 ## This is an option because I do not know if all info/man support
394 ## compressed files, nor how to test if they do so.
395 OPTION_DEFAULT_ON([compress-install],
396 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
397 make GZIP_PROG= install])
399 AC_ARG_WITH(gameuser,dnl
400 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
401 [user for shared game score files.
402 An argument prefixed by ':' specifies a group instead.])])
405 case ${with_gameuser} in
407 yes) gamegroup=games ;;
408 :*) gamegroup=${with_gameuser#:} ;;
409 *) gameuser=${with_gameuser} ;;
412 AC_ARG_WITH([gnustep-conf],dnl
413 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
414 [name of GNUstep configuration file to use on systems where the command
415 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
416 /etc/GNUstep/GNUstep.conf])])
417 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
418 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
419 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
420 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
422 AC_ARG_ENABLE(ns-self-contained,
423 [AS_HELP_STRING([--disable-ns-self-contained],
424 [disable self contained build under NeXTstep])],
425 EN_NS_SELF_CONTAINED=$enableval,
426 EN_NS_SELF_CONTAINED=yes)
429 AC_ARG_ENABLE(locallisppath,
430 [AS_HELP_STRING([--enable-locallisppath=PATH],
431 [directories Emacs should search for lisp files specific
433 if test "${enableval}" = "no"; then
435 elif test "${enableval}" != "yes"; then
436 locallisppath=${enableval} locallisppathset=yes
439 AC_ARG_ENABLE(checking,
440 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
441 [enable expensive run-time checks. With LIST,
442 enable only specific categories of checks.
443 Categories are: all,yes,no.
444 Flags are: stringbytes, stringoverrun, stringfreelist,
445 xmallocoverrun, conslist, glyphs])],
446 [ac_checking_flags="${enableval}"],[])
447 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
448 for check in $ac_checking_flags
451 # these set all the flags to specific states
452 yes) ac_enable_checking=1 ;;
453 no) ac_enable_checking= ;
454 ac_gc_check_stringbytes= ;
455 ac_gc_check_string_overrun= ;
456 ac_gc_check_string_free_list= ;
457 ac_xmalloc_overrun= ;
458 ac_gc_check_cons_list= ;
460 all) ac_enable_checking=1 ;
461 ac_gc_check_stringbytes=1 ;
462 ac_gc_check_string_overrun=1 ;
463 ac_gc_check_string_free_list=1 ;
464 ac_xmalloc_overrun=1 ;
465 ac_gc_check_cons_list=1 ;
467 # these enable particular checks
468 stringbytes) ac_gc_check_stringbytes=1 ;;
469 stringoverrun) ac_gc_check_string_overrun=1 ;;
470 stringfreelist) ac_gc_check_string_free_list=1 ;;
471 xmallocoverrun) ac_xmalloc_overrun=1 ;;
472 conslist) ac_gc_check_cons_list=1 ;;
473 glyphs) ac_glyphs_debug=1 ;;
474 *) AC_MSG_ERROR(unknown check category $check) ;;
479 if test x$ac_enable_checking != x ; then
480 AC_DEFINE(ENABLE_CHECKING, 1,
481 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
483 if test x$ac_gc_check_stringbytes != x ; then
484 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
485 [Define this temporarily to hunt a bug. If defined, the size of
486 strings is redundantly recorded in sdata structures so that it can
487 be compared to the sizes recorded in Lisp strings.])
489 if test x$ac_gc_check_string_overrun != x ; then
490 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
491 [Define this to check for short string overrun.])
493 if test x$ac_gc_check_string_free_list != x ; then
494 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
495 [Define this to check the string free list.])
497 if test x$ac_xmalloc_overrun != x ; then
498 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
499 [Define this to check for malloc buffer overrun.])
501 if test x$ac_gc_check_cons_list != x ; then
502 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
503 [Define this to check for errors in cons list.])
505 if test x$ac_glyphs_debug != x ; then
506 AC_DEFINE(GLYPH_DEBUG, 1,
507 [Define this to enable glyphs debugging code.])
510 dnl The name of this option is unfortunate. It predates, and has no
511 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
512 dnl Actually, it stops it working.
513 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
514 AC_ARG_ENABLE(profiling,
515 [AS_HELP_STRING([--enable-profiling],
516 [build emacs with low-level, gprof profiling support.
517 Mainly useful for debugging Emacs itself. May not work on
518 all platforms. Stops profiler.el working.])],
519 [ac_enable_profiling="${enableval}"],[])
520 if test x$ac_enable_profiling != x ; then
521 PROFILING_CFLAGS="-DPROFILING=1 -pg"
525 AC_SUBST(PROFILING_CFLAGS)
527 AC_ARG_ENABLE(autodepend,
528 [AS_HELP_STRING([--enable-autodepend],
529 [automatically generate dependencies to .h-files.
530 Requires gcc, enabled if found.])],
531 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
533 AC_ARG_ENABLE(gtk-deprecation-warnings,
534 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
535 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
536 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
539 AC_ARG_ENABLE([build-details],
540 [AS_HELP_STRING([--disable-build-details],
541 [Make the build more deterministic by omitting host
542 names, time stamps, etc. from the output.])],
543 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
544 AC_SUBST([BUILD_DETAILS])
546 dnl This used to use changequote, but, apart from 'changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / macOS
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## FIXME: Find a way to use Fink if available (Bug#11507).
610 ## Chromium Native Client
620 ## HP 9000 series 700 and 800, running HP/UX
624 hppa*-hp-hpux1[1-9]* )
626 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
630 rs6000-ibm-aix4.[23]* )
633 powerpc-ibm-aix4.[23]* )
636 rs6000-ibm-aix[56]* )
639 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
645 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
646 | x86_64-*-solaris2* | x86_64-*-sunos5*)
647 case "${canonical}" in
649 amd64-*-*|x86_64-*-*) ;;
653 case "${canonical}" in
654 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
656 emacs_check_sunpro_c=yes
658 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
659 ## Note that Emacs 23.1's NEWS said the following would be dropped.
660 *-sunos5.6* | *-solaris2.6* )
664 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
665 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
667 emacs_check_sunpro_c=yes
670 ## Watch out for a compiler that we know will not work.
671 case "${canonical}" in
672 *-solaris* | *-sunos5* )
673 if [ "x$CC" = x/usr/ucb/cc ]; then
674 ## /usr/ucb/cc doesn't work;
675 ## we should find some other compiler that does work.
683 ## Intel 386 machines where we don't care about the manufacturer.
685 case "${canonical}" in
686 *-darwin* ) opsys=darwin ;;
689 # MinGW overrides and adds some system headers in nt/inc.
690 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
692 *-sysv4.2uw* ) opsys=unixware ;;
693 *-sysv5uw* ) opsys=unixware ;;
694 *-sysv5OpenUNIX* ) opsys=unixware ;;
695 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
701 case "${canonical}" in
704 # MinGW overrides and adds some system headers in nt/inc.
705 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
707 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
716 ### If the code above didn't choose an operating system, just choose
717 ### an operating system based on the configuration name. You really
718 ### only want to use this when you have no idea what the right
719 ### operating system is; if you know what operating systems a machine
720 ### runs, it's cleaner to make it explicit in the case statement
722 if test x"${opsys}" = x; then
723 case "${canonical}" in
724 *-gnu* ) opsys=gnu ;;
734 if test $unported = yes; then
735 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
736 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
737 Check 'etc/MACHINES' for recognized configuration names.])
740 #### Choose a compiler.
742 dnl Don't bother to test for C89.
743 AC_DEFUN([_AC_PROG_CC_C89], [$2])
745 dnl Sets GCC=yes if using gcc.
746 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
747 if test -n "$XCRUN"; then
748 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
749 test -n "$AR" && export AR
752 dnl Emacs needs C99 or later.
757 if test x$GCC = xyes; then
758 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
761 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
762 AC_DEFUN([gl_CRYPTO_CHECK])
763 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
764 # as we don't use them.
765 AC_DEFUN([gl_FCNTL_O_FLAGS])
766 # Avoid gnulib's test for pthread_sigmask.
768 for func in $ac_func_list; do
769 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
772 # Use the system putenv even if it lacks GNU features, as we don't need them,
773 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
774 AC_CHECK_FUNCS_ONCE([putenv])
775 AC_DEFUN([gl_FUNC_PUTENV],
776 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
777 # Emacs does not use the wchar or wctype-h modules.
778 AC_DEFUN([gt_TYPE_WINT_T],
779 [GNULIB_OVERRIDES_WINT_T=0
780 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
782 # Initialize gnulib right after choosing the compiler.
783 dnl Amongst other things, this sets AR and ARFLAGS.
786 if test "$ac_test_CFLAGS" != set; then
787 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
788 # if -g3 works and the user does not specify CFLAGS.
789 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
792 emacs_g3_CFLAGS='-g3';;
794 emacs_g3_CFLAGS='-g3 -O2';;
798 if test -n "$emacs_g3_CFLAGS"; then
799 emacs_save_CFLAGS=$CFLAGS
800 CFLAGS=$emacs_g3_CFLAGS
801 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
802 [emacs_cv_prog_cc_g3],
803 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
804 [emacs_cv_prog_cc_g3=yes],
805 [emacs_cv_prog_cc_g3=no])])
806 if test $emacs_cv_prog_cc_g3 != yes; then
807 CFLAGS=$emacs_save_CFLAGS
809 if test $opsys = mingw32; then
810 CFLAGS="$CFLAGS -gdwarf-2"
817 # No optimization flag was inferred for this non-GCC compiler.
818 # Try -O. This is needed for xlc on AIX; see Bug#14258.
819 emacs_save_CFLAGS=$CFLAGS
820 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
822 AC_CACHE_CHECK([whether $CC accepts -O],
823 [emacs_cv_prog_cc_o],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_o=yes],
826 [emacs_cv_prog_cc_o=no])])
827 if test $emacs_cv_prog_cc_o != yes; then
828 CFLAGS=$emacs_save_CFLAGS
833 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
834 # ---------------------------------------------------------------------------
835 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
836 # Otherwise, run RUN-IF-NOT-FOUND.
837 AC_DEFUN([gl_GCC_VERSION_IFELSE],
841 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
844 # error "your version of gcc is older than $1.$2"
851 AC_ARG_ENABLE([gcc-warnings],
852 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
853 [control generation of GCC warnings. The TYPE 'yes'
854 means to fail if any warnings are issued; 'warn-only'
855 means issue warnings without failing (default for
856 developer builds); 'no' means disable warnings
857 (default for non-developer builds).])],
860 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
862 gl_gcc_warnings=$enableval],
863 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
864 # is a developer as opposed to a builder. This is most likely true
865 # if GCC is recent enough and there is a .git directory or file;
866 # however, if there is also a .tarball-version file it is probably
867 # just a release imported into Git for patch management.
869 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
870 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
873 AC_ARG_ENABLE([check-lisp-object-type],
874 [AS_HELP_STRING([--enable-check-lisp-object-type],
875 [Enable compile-time checks for the Lisp_Object data type,
876 which can catch some bugs during development.
877 The default is "no" if --enable-gcc-warnings is "no".])])
878 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
879 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
880 [Define to enable compile-time checks for the Lisp_Object data type.])
883 # clang is unduly picky about some things.
884 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
891 [emacs_cv_clang=yes],
892 [emacs_cv_clang=no])])
894 # When compiling with GCC, prefer -isystem to -I when including system
895 # include files, to avoid generating useless diagnostics for the files.
896 AS_IF([test $gl_gcc_warnings = no],
899 AS_IF([test "$emacs_cv_clang" = yes],
901 # Turn off some warnings if supported.
902 gl_WARN_ADD([-Wno-switch])
903 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
904 gl_WARN_ADD([-Wno-pointer-sign])
905 gl_WARN_ADD([-Wno-string-plus-int])
906 gl_WARN_ADD([-Wno-unknown-attributes])
911 # This, $nw, is the list of warnings we disable.
914 case $with_x_toolkit in
915 lucid | athena | motif)
916 # Old toolkits mishandle 'const'.
917 nw="$nw -Wwrite-strings"
920 AS_IF([test $gl_gcc_warnings = yes],
921 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
922 AC_SUBST([WERROR_CFLAGS])
924 nw="$nw -Wduplicated-branches" # Too many false alarms
925 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
926 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
927 nw="$nw -Woverlength-strings" # Not a problem these days
928 nw="$nw -Wformat-nonliteral" # we do this a lot
929 nw="$nw -Wvla" # Emacs uses <vla.h>.
930 nw="$nw -Wswitch-default" # Too many warnings for now
931 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
932 nw="$nw -Winline" # OK to ignore 'inline'
933 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
934 # signed overflow has undefined behavior
935 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
936 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
937 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
939 # Emacs doesn't care about shadowing; see
940 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
943 # Emacs's use of alloca inhibits protecting the stack.
944 nw="$nw -Wstack-protector"
946 # Emacs's use of partly-const functions such as Fgnutls_available_p
947 # make this option problematic.
948 nw="$nw -Wsuggest-attribute=const"
950 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
951 # option problematic.
952 nw="$nw -Wsuggest-attribute=pure"
954 # This part is merely for shortening the command line,
955 # since -Wall implies -Wswitch.
958 # This part is merely for shortening the command line,
959 # since -Wno-FOO needs to be added below regardless.
960 nw="$nw -Wmissing-field-initializers"
961 nw="$nw -Wtype-limits"
962 nw="$nw -Wunused-parameter"
964 if test $emacs_cv_clang = yes; then
965 nw="$nw -Wcast-align"
966 nw="$nw -Wdouble-promotion"
967 nw="$nw -Wmissing-braces"
970 # This causes too much noise in the MinGW build
971 if test $opsys = mingw32; then
972 nw="$nw -Wpointer-sign"
975 gl_MANYWARN_ALL_GCC([ws])
976 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
980 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
981 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
982 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
983 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
984 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
985 gl_WARN_ADD([-Wno-format-nonliteral])
987 # More things that clang is unduly picky about.
988 if test $emacs_cv_clang = yes; then
989 gl_WARN_ADD([-Wno-tautological-compare])
990 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
993 # This causes too much noise in the MinGW build
994 if test $opsys = mingw32; then
995 gl_WARN_ADD([-Wno-pointer-sign])
998 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
999 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1000 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1001 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1002 without upsetting glibc 2.15+. */
1003 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1004 && defined __OPTIMIZE__ && __OPTIMIZE__)
1005 # define _FORTIFY_SOURCE 2
1009 # We use a slightly smaller set of warning options for lib/.
1010 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1012 nw="$nw -Wunused-macros"
1014 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1015 AC_SUBST([GNULIB_WARN_CFLAGS])
1025 AC_ARG_ENABLE(link-time-optimization,
1026 [AS_HELP_STRING([--enable-link-time-optimization],
1027 [build emacs with link-time optimization.
1028 This requires GCC 4.5.0 or later, or clang.
1029 (Note that clang support is experimental - see INSTALL.)
1030 It also makes Emacs harder to debug, and when we tried it
1031 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1032 recommended for typical use.])],
1033 if test "${enableval}" != "no"; then
1035 if test $emacs_cv_clang = yes; then
1036 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1037 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1038 if test -x "$GOLD_PLUGIN"; then
1041 elif test x$GCC = xyes; then
1042 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1043 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1044 if test x$CPUS != x; then
1050 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1052 if test -z "$LTO"; then
1056 CFLAGS="$CFLAGS $LTO"
1057 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1058 [ac_lto_supported=yes], [ac_lto_supported=no])
1059 CFLAGS="$old_CFLAGS"
1061 AC_MSG_RESULT([$ac_lto_supported])
1062 if test "$ac_lto_supported" = "yes"; then
1063 CFLAGS="$CFLAGS $LTO"
1064 if test x$emacs_cv_clang = xyes; then
1065 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1066 # WARNING: 'ar --plugin ...' doesn't work without
1067 # command, so plugin name is appended to ARFLAGS.
1068 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1069 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1071 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1072 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1073 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1074 dnl dump core on Fedora 20, so play it safe for now.
1075 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1076 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1082 dnl Automake replacements.
1083 AC_DEFUN([AM_CONDITIONAL],
1087 dnl Prefer silent make output. For verbose output, use
1088 dnl 'configure --disable-silent-rules' or 'make V=1' .
1089 dnl This code is adapted from Automake.
1090 dnl Although it can be simplified now that GNU Make is assumed,
1091 dnl the simplification hasn't been done yet.
1092 AC_ARG_ENABLE([silent-rules],
1094 [--disable-silent-rules],
1095 [verbose build output (undo: "make V=0")])])
1096 if test "$enable_silent_rules" = no; then
1097 AM_DEFAULT_VERBOSITY=1
1099 AM_DEFAULT_VERBOSITY=0
1102 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1104 AC_SUBST([AM_DEFAULT_V])
1105 AC_SUBST([AM_DEFAULT_VERBOSITY])
1107 dnl Some other nice autoconf tests.
1109 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1111 dnl if test "x$RANLIB" = x; then
1116 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1117 dnl can be made to directories. This is not relevant for our usage, and
1118 dnl excludes some cases that work fine for us. Eg MS Windows or files
1119 dnl hosted on AFS, both examples where simple links work, but links to
1120 dnl directories fail. We use a cut-down version instead.
1123 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1124 rm -f conf$$ conf$$.file
1126 LN_S_FILEONLY='cp -p'
1128 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1129 dnl random program in the current directory.
1130 if (echo >conf$$.file) 2>/dev/null; then
1131 if ln -s conf$$.file conf$$ 2>/dev/null; then
1132 if test "$opsys" = "mingw32"; then
1133 LN_S_FILEONLY='/bin/ln -s'
1135 LN_S_FILEONLY='ln -s'
1137 elif ln conf$$.file conf$$ 2>/dev/null; then
1138 if test "$opsys" = "mingw32"; then
1139 LN_S_FILEONLY=/bin/ln
1146 rm -f conf$$ conf$$.file
1148 if test "$LN_S_FILEONLY" = "ln -s"; then
1149 AC_MSG_RESULT([yes])
1151 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1154 AC_SUBST(LN_S_FILEONLY)
1157 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1158 dnl doesn't support links to directories, as in "ln file dir". But that
1159 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1160 dnl executables at "make install" time.
1161 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1162 dnl for more details.
1163 if test "$opsys" = "mingw32"; then
1167 dnl On some Debian versions, "install-info" prints irritating messages
1168 dnl "This is not dpkg install-info anymore, but GNU install-info"
1169 dnl if called via an absolute file name.
1170 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1171 dnl Sadly some people may have an old ginstall-info installed on
1172 dnl non-Debian systems, so we can't use this.
1173 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1174 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1176 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1177 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1178 dnl Don't use GZIP, which is used by gzip for additional parameters.
1179 AC_PATH_PROG(GZIP_PROG, gzip)
1181 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1182 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1184 AC_CACHE_CHECK([for 'find' args to delete a file],
1185 [emacs_cv_find_delete],
1186 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1187 test ! -f conftest.tmp
1188 then emacs_cv_find_delete="-delete"
1189 else emacs_cv_find_delete="-exec rm -f {} ';'"
1191 FIND_DELETE=$emacs_cv_find_delete
1192 AC_SUBST([FIND_DELETE])
1196 if test $opsys = gnu-linux; then
1197 if test "${SETFATTR+set}" != set; then
1198 AC_CACHE_CHECK([for setfattr],
1199 [emacs_cv_prog_setfattr],
1201 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1202 emacs_cv_prog_setfattr=yes
1204 emacs_cv_prog_setfattr=no
1206 if test "$emacs_cv_prog_setfattr" = yes; then
1207 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1213 AC_SUBST([SETFATTR])
1216 case $opsys,$PAXCTL_notdumped in
1217 gnu-linux, | netbsd,)
1218 AC_PATH_PROG([PAXCTL], [paxctl], [],
1219 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1220 if test -n "$PAXCTL"; then
1221 if test "$opsys" = netbsd; then
1222 PAXCTL_dumped='$(PAXCTL) +a'
1223 PAXCTL_notdumped=$PAXCTL_dumped
1225 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1226 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1227 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1228 AC_MSG_RESULT([yes])
1233 if test -n "$PAXCTL"; then
1234 PAXCTL_dumped='$(PAXCTL) -zex'
1235 PAXCTL_notdumped='$(PAXCTL) -r'
1240 AC_SUBST([PAXCTL_dumped])
1241 AC_SUBST([PAXCTL_notdumped])
1243 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1244 if test "${MAKEINFO:=makeinfo}" != "no"; then
1245 case `($MAKEINFO --version) 2>/dev/null` in
1246 *' (GNU texinfo) '4.1[[3-9]]* | \
1247 *' (GNU texinfo) '[[5-9]]* | \
1248 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1253 ## Makeinfo is unusual. For a released Emacs, the manuals are
1254 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1255 ## therefore in the category of "special tools" not normally required, which
1256 ## configure does not have to check for (eg autoconf itself).
1257 ## In a repository checkout on the other hand, the manuals are not included.
1258 ## So makeinfo is a requirement to build from the repository, and configure
1259 ## should test for it as it does for any other build requirement.
1260 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1261 ## with pre-built manuals, from a repository checkout.
1264 if test "$MAKEINFO" = "no"; then
1266 if test "x${with_makeinfo}" = "xno"; then
1268 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1269 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1270 source tree does not seem to have pre-built manuals in the 'info' directory.
1271 Either install a suitable version of makeinfo, or re-run configure
1272 with the '--without-makeinfo' option to build without the manuals.] )
1275 AC_SUBST([MAKEINFO])
1276 AC_SUBST(HAVE_MAKEINFO)
1278 if test $opsys = mingw32; then
1279 DOCMISC_W32=efaq-w32
1283 AC_SUBST(DOCMISC_W32)
1285 dnl Add our options to ac_link now, after it is set up.
1287 if test x$GCC = xyes; then
1288 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1289 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1291 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1292 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1295 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1296 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1297 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1298 dnl if not built to support GNU ld.
1300 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1301 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1302 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1303 dnl Eg "make LDFLAGS=... all" could run into problems,
1304 dnl http://bugs.debian.org/684788
1305 dnl * unnecessary, since temacs is the only thing that actually needs it.
1306 dnl Indeed this is where it was originally, prior to:
1307 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1308 late_LDFLAGS="$LDFLAGS"
1309 if test x$GCC = xyes; then
1310 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1312 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1315 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1317 AC_MSG_CHECKING([for -znocombreloc])
1318 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1319 [AC_MSG_RESULT(yes)],
1320 LDFLAGS_NOCOMBRELOC=
1321 [AC_MSG_RESULT(no)])
1323 LDFLAGS="$late_LDFLAGS"
1325 AC_CACHE_CHECK([whether addresses are sanitized],
1326 [emacs_cv_sanitize_address],
1329 [[#ifndef __has_feature
1330 #define __has_feature(f) 0
1332 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1334 error "Addresses are not sanitized.";
1337 [emacs_cv_sanitize_address=yes],
1338 [emacs_cv_sanitize_address=no])])
1340 dnl The function dump-emacs will not be defined and temacs will do
1341 dnl (load "loadup") automatically unless told otherwise.
1342 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1344 nacl) CANNOT_DUMP=yes ;;
1347 if test "$CANNOT_DUMP" = "yes"; then
1348 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1349 elif test "$emacs_cv_sanitize_address" = yes; then
1350 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1353 AC_SUBST(CANNOT_DUMP)
1356 UNEXEC_OBJ=unexelf.o
1358 # MSDOS uses unexcoff.o
1360 UNEXEC_OBJ=unexaix.o
1366 UNEXEC_OBJ=unexmacosx.o
1369 UNEXEC_OBJ=unexhp9k800.o
1372 UNEXEC_OBJ=unexw32.o
1375 # Use the Solaris dldump() function, called from unexsol.c, to dump
1376 # emacs, instead of the generic ELF dump code found in unexelf.c.
1377 # The resulting binary has a complete symbol table, and is better
1378 # for debugging and other observability tools (debuggers, pstack, etc).
1380 # If you encounter a problem using dldump(), please consider sending
1381 # a message to the OpenSolaris tools-linking mailing list:
1382 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1384 # It is likely that dldump() works with older Solaris too, but this has
1385 # not been tested, so for now this change is for Solaris 10 or newer.
1386 UNEXEC_OBJ=unexsol.o
1389 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1394 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1395 ## The system compiler, GCC, has apparently been modified to not
1396 ## look there, contrary to what a stock GCC would do.
1397 ### It's not our place to do this. See bug#10313#17.
1398 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1403 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1404 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1408 ### It's not our place to do this. See bug#10313#17.
1409 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1414 ## Han Boetes <han@boetes.org> says this is necessary,
1415 ## otherwise Emacs dumps core on elf systems.
1416 LD_SWITCH_SYSTEM="-Z"
1419 AC_SUBST(LD_SWITCH_SYSTEM)
1421 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1423 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1424 ## which has not been defined yet. When this was handled with cpp,
1425 ## it was expanded to null when configure sourced the s/*.h file.
1426 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1427 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1428 ## (or somesuch), but because it is supposed to go at the _front_
1429 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1430 ## Compare with the gnu-linux case below, which added to the end
1431 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1432 ## LD_SWITCH_SYSTEM_TEMACS.
1435 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1442 AC_CHECK_DECL([__ELF__])
1443 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1444 ## With ELF, make sure that all common symbols get allocated to in the
1445 ## data section. Otherwise, the dump of temacs may miss variables in
1446 ## the shared library that have been initialized. For example, with
1447 ## GNU libc, __malloc_initialized would normally be resolved to the
1448 ## shared library's .bss section, which is fatal.
1449 if test "x$GCC" = "xyes"; then
1450 C_SWITCH_MACHINE="-fno-common"
1452 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1455 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1456 dnl albeit under the mistaken assumption that said file
1457 dnl was no longer used.
1458 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1462 AC_SUBST(C_SWITCH_MACHINE)
1464 AC_SUBST(UNEXEC_OBJ)
1467 ## Some programs in src produce warnings saying certain subprograms
1468 ## are too complex and need a MAXMEM value greater than 2000 for
1469 ## additional optimization. --nils@exp-math.uni-essen.de
1470 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1471 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1472 if test "$opsys" = "mingw32"; then
1473 case "$canonical" in
1474 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1475 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1478 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1479 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1480 AC_SUBST(C_SWITCH_SYSTEM)
1485 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1486 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1488 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1490 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1492 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1494 ## Motif needs -lgen.
1495 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1498 AC_SUBST(LIBS_SYSTEM)
1500 ### Make sure subsequent tests use flags consistent with the build flags.
1502 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1503 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1505 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1508 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1509 AC_DEFUN([AC_TYPE_SIZE_T])
1510 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1511 AC_DEFUN([AC_TYPE_UID_T])
1513 # sqrt and other floating-point functions such as fmod and frexp
1514 # are found in -lm on many systems.
1516 AC_SEARCH_LIBS([sqrt], [m])
1517 if test "X$LIBS" = "X$OLD_LIBS"; then
1520 LIB_MATH=$ac_cv_search_sqrt
1524 dnl Current possibilities handled by sed (aix4-2 -> aix,
1525 dnl gnu-linux -> gnu/linux, etc.):
1526 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1527 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1528 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1535 ## Adding -lm confuses the dynamic linker, so omit it.
1538 freebsd | dragonfly )
1539 SYSTEM_TYPE=berkeley-unix
1541 gnu-linux | gnu-kfreebsd )
1543 hpux10-20 | hpux11 )
1547 SYSTEM_TYPE=windows-nt
1549 dnl NB this may be adjusted below.
1551 SYSTEM_TYPE=berkeley-unix
1555 SYSTEM_TYPE=usg-unix-v
1561 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1562 [The type of system you are compiling for; sets 'system-type'.])
1563 AC_SUBST([SYSTEM_TYPE])
1566 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1567 pre_PKG_CONFIG_LIBS=$LIBS
1569 PKG_PROG_PKG_CONFIG(0.9.0)
1571 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1572 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1573 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1574 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1575 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1576 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1578 AC_DEFUN([EMACS_CHECK_MODULES],
1579 [PKG_CHECK_MODULES([$1], [$2],
1580 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1581 m4_default([$3], [HAVE_$1=yes])],
1582 [m4_default([$4], [HAVE_$1=no])])])
1585 if test "${with_sound}" != "no"; then
1586 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1587 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1588 have_sound_header=yes, [], [
1590 #define WIN32_LEAN_AND_MEAN
1591 #include <windows.h>
1594 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1595 AC_MSG_ERROR([OSS sound support requested but not found.])
1597 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1598 # Emulation library used on NetBSD.
1599 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1600 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1601 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1602 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1603 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1607 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1609 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1610 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1611 if test $HAVE_ALSA = yes; then
1612 SAVE_CFLAGS="$CFLAGS"
1614 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1615 LIBS="$ALSA_LIBS $LIBS"
1616 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1617 emacs_alsa_normal=yes,
1618 emacs_alsa_normal=no)
1619 if test "$emacs_alsa_normal" != yes; then
1620 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1621 [[snd_lib_error_set_handler (0);]])],
1622 emacs_alsa_subdir=yes,
1623 emacs_alsa_subdir=no)
1624 if test "$emacs_alsa_subdir" != yes; then
1625 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1627 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1630 CFLAGS="$SAVE_CFLAGS"
1632 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1633 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1634 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1635 elif test "${with_sound}" = "alsa"; then
1636 AC_MSG_ERROR([ALSA sound support requested but not found.])
1638 fi dnl with_sound = alsa|yes
1640 dnl Define HAVE_SOUND if we have sound support. We know it works and
1641 dnl compiles only on the specified platforms. For others, it
1642 dnl probably doesn't make sense to try.
1643 dnl FIXME So surely we should bypass this whole section if not using
1644 dnl one of these platforms?
1645 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1647 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1648 dnl Adjust the --with-sound help text if you change this.
1649 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1650 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1656 AC_SUBST(CFLAGS_SOUND)
1659 dnl checks for header files
1660 AC_CHECK_HEADERS_ONCE(
1667 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1669 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1670 [emacs_cv_personality_addr_no_randomize],
1672 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1673 [[personality (personality (0xffffffff)
1674 | ADDR_NO_RANDOMIZE)]])],
1675 [emacs_cv_personality_addr_no_randomize=yes],
1676 [emacs_cv_personality_addr_no_randomize=no])])
1677 if test $emacs_cv_personality_addr_no_randomize = yes; then
1678 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1679 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1682 # Note that Solaris has sys/sysinfo.h which defines struct
1683 # sysinfo as well. To make sure that we're using GNU/Linux
1684 # sysinfo, we explicitly set one of its fields.
1685 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1686 AC_MSG_CHECKING([if Linux sysinfo may be used])
1687 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1688 [[struct sysinfo si;
1691 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1692 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1693 if test $emacs_cv_linux_sysinfo = yes; then
1694 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1695 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1696 [[struct sysinfo si; return si.mem_unit]])],
1697 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1698 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1702 dnl On Solaris 8 there's a compilation warning for term.h because
1703 dnl it doesn't define 'bool'.
1704 AC_CHECK_HEADERS(term.h, , , -)
1706 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1708 if test $ac_cv_have_decl_sys_siglist != yes; then
1709 # For Tru64, at least:
1710 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1715 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1716 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1717 #if HAVE_SYS_SOCKET_H
1718 #include <sys/socket.h>
1720 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1721 #if HAVE_SYS_SOCKET_H
1722 #include <sys/socket.h>
1724 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1725 #if HAVE_SYS_SOCKET_H
1726 #include <sys/socket.h>
1729 dnl checks for structure members
1730 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1731 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1732 struct ifreq.ifr_addr,
1733 struct ifreq.ifr_addr.sa_len], , ,
1734 [AC_INCLUDES_DEFAULT
1735 #if HAVE_SYS_SOCKET_H
1736 #include <sys/socket.h>
1742 dnl Check for endianness.
1743 dnl AC_C_BIGENDIAN is done by gnulib.
1745 dnl check for Make feature
1748 AUTODEPEND_PARENTS='lib src'
1749 dnl check if we have GCC and autodepend is on.
1750 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1751 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1752 SAVE_CFLAGS="$CFLAGS"
1753 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1754 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1755 CFLAGS="$SAVE_CFLAGS"
1756 test -f deps.d || ac_enable_autodepend=no
1758 AC_MSG_RESULT([$ac_enable_autodepend])
1759 if test $ac_enable_autodepend = yes; then
1763 AC_SUBST(AUTO_DEPEND)
1765 dnl checks for operating system services
1766 AC_SYS_LONG_FILE_NAMES
1768 #### Choose a window system.
1770 ## We leave window_system equal to none if
1771 ## we end up building without one. Any new window system should
1772 ## set window_system to an appropriate value and add objects to
1773 ## window-system-specific substs.
1777 if test "$no_x" != yes; then
1781 LD_SWITCH_X_SITE_RPATH=
1782 if test "${x_libraries}" != NONE; then
1783 if test -n "${x_libraries}"; then
1784 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1785 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1786 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1789 x_default_search_path=""
1790 x_search_path=${x_libraries}
1791 if test -z "${x_search_path}"; then
1792 x_search_path=/usr/lib
1794 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1795 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1797 ${x_library}/X11/%L/%T/%N%C%S:\
1798 ${x_library}/X11/%l/%T/%N%C%S:\
1799 ${x_library}/X11/%T/%N%C%S:\
1800 ${x_library}/X11/%L/%T/%N%S:\
1801 ${x_library}/X11/%l/%T/%N%S:\
1802 ${x_library}/X11/%T/%N%S"
1803 if test x"${x_default_search_path}" = x; then
1804 x_default_search_path=${x_search_path}
1806 x_default_search_path="${x_search_path}:${x_default_search_path}"
1810 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1812 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1813 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1816 if test x"${x_includes}" = x; then
1817 bitmapdir=/usr/include/X11/bitmaps
1819 # accumulate include directories that have X11 bitmap subdirectories
1821 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1822 if test -d "${bmd}/X11/bitmaps"; then
1823 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1825 if test -d "${bmd}/bitmaps"; then
1826 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1829 bitmapdir=${bmd_acc#:}
1832 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1834 NS_GNUSTEP_CONFIG=no
1837 tmp_CPPFLAGS="$CPPFLAGS"
1838 tmp_CFLAGS="$CFLAGS"
1839 CPPFLAGS="$CPPFLAGS -x objective-c"
1840 CFLAGS="$CFLAGS -x objective-c"
1843 if test "${with_ns}" != no; then
1844 if test "${opsys}" = darwin; then
1846 ns_appdir=`pwd`/nextstep/Emacs.app
1847 ns_appbindir=${ns_appdir}/Contents/MacOS
1848 ns_appresdir=${ns_appdir}/Contents/Resources
1849 ns_appsrc=Cocoa/Emacs.base
1850 ns_fontfile=macfont.o
1851 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1853 NS_GNUSTEP_CONFIG=yes
1854 GNU_OBJC_CFLAGS=$flags
1855 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1856 elif test -f $GNUSTEP_CONFIG_FILE; then
1858 dnl FIXME sourcing this several times in subshells seems inefficient.
1859 GNUSTEP_SYSTEM_HEADERS=$(
1860 . $GNUSTEP_CONFIG_FILE
1861 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1863 GNUSTEP_SYSTEM_LIBRARIES=$(
1864 . $GNUSTEP_CONFIG_FILE
1865 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1867 dnl I seemed to need these as well with GNUstep-startup 0.25.
1868 GNUSTEP_LOCAL_HEADERS=$(
1869 . $GNUSTEP_CONFIG_FILE
1870 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1872 GNUSTEP_LOCAL_LIBRARIES=$(
1873 . $GNUSTEP_CONFIG_FILE
1874 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1876 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1877 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1878 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1879 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1880 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1881 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1882 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1883 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1884 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1885 dnl If they had chosen to either define it or not, we could have
1886 dnl just used AC_CHECK_DECL here.
1887 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1888 emacs_cv_objc_exceptions,
1889 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1890 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1894 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1895 if test $emacs_cv_objc_exceptions = yes; then
1896 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1897 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1898 [Define if GNUstep uses ObjC exceptions.])
1899 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1902 if test $NS_IMPL_GNUSTEP = yes; then
1903 ns_appdir=`pwd`/nextstep/Emacs.app
1904 ns_appbindir=${ns_appdir}
1905 ns_appresdir=${ns_appdir}/Resources
1906 ns_appsrc=GNUstep/Emacs.base
1907 ns_fontfile=nsfont.o
1910 dnl This is only used while we test the NS headers, it gets reset below.
1911 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1912 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1914 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1915 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1916 are required for a Nextstep build are missing or cannot be compiled.
1917 Either fix this, or re-configure with the option '--without-ns'.])])
1920 if test "${NS_IMPL_COCOA}" = "yes"; then
1921 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1922 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1924 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1925 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1928 error "Mac OS X 10.6 or newer required";
1932 ns_osx_have_106=yes,
1934 AC_MSG_RESULT([$ns_osx_have_106])
1936 if test $ns_osx_have_106 = no; then
1937 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1942 AC_SUBST(LIBS_GNUSTEP)
1944 INSTALL_ARCH_INDEP_EXTRA=install-etc
1945 ns_self_contained=no
1948 if test "${HAVE_NS}" = yes; then
1949 if test "$with_toolkit_scroll_bars" = "no"; then
1950 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1953 window_system=nextstep
1954 # set up packaging dirs
1955 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1956 ns_self_contained=yes
1957 prefix=${ns_appresdir}
1958 exec_prefix=${ns_appbindir}
1959 dnl This one isn't really used, only archlibdir is.
1960 libexecdir="\${ns_appbindir}/libexec"
1961 archlibdir="\${ns_appbindir}/libexec"
1962 etcdocdir="\${ns_appresdir}/etc"
1963 etcdir="\${ns_appresdir}/etc"
1964 dnl FIXME maybe set datarootdir instead.
1965 dnl That would also get applications, icons, man.
1966 infodir="\${ns_appresdir}/info"
1967 mandir="\${ns_appresdir}/man"
1968 lispdir="\${ns_appresdir}/lisp"
1969 test "$locallisppathset" = no && locallisppath=""
1970 INSTALL_ARCH_INDEP_EXTRA=
1973 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1975 CFLAGS="$tmp_CFLAGS"
1976 CPPFLAGS="$tmp_CPPFLAGS"
1977 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1978 AC_SUBST(ns_self_contained)
1980 AC_SUBST(NS_OBJC_OBJ)
1990 if test "${with_w32}" != no; then
1993 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1994 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1995 cannot be found.])])
1998 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2001 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2006 if test "${opsys}" = "mingw32"; then
2007 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2008 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2009 #include <windows.h>
2010 #include <usp10.h>]],
2011 [[PIMAGE_NT_HEADERS pHeader;
2012 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2013 [emacs_cv_w32api=yes
2016 AC_MSG_RESULT($emacs_cv_w32api)
2017 if test "${emacs_cv_w32api}" = "no"; then
2018 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2029 if test "${HAVE_W32}" = "yes"; then
2030 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2031 if test "$with_toolkit_scroll_bars" = "no"; then
2032 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2034 AC_CHECK_TOOL(WINDRES, [windres],
2035 [AC_MSG_ERROR([No resource compiler found.])])
2036 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2037 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2038 EMACSRES="emacs.res"
2039 case "$canonical" in
2040 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2041 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2043 dnl Construct something of the form "24,4,0,0" with 4 components.
2044 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2046 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2047 AC_SUBST(comma_version)
2048 AC_SUBST(comma_space_version)
2049 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2050 if test "${opsys}" = "cygwin"; then
2051 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2052 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2053 # Tell the linker that emacs.res is an object (which we compile from
2054 # the rc file), not a linker script.
2055 W32_RES_LINK="-Wl,emacs.res"
2057 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2058 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2059 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2060 W32_RES_LINK="\$(EMACSRES)"
2061 CLIENTRES="emacsclient.res"
2062 CLIENTW="emacsclientw\$(EXEEXT)"
2063 FIRSTFILE_OBJ=firstfile.o
2066 LIBS_ECLIENT="-lcomctl32"
2067 LIB_WSOCK32="-lwsock32"
2068 NTLIB="ntlib.$ac_objext"
2069 XARGS_LIMIT="-s 10000"
2075 AC_SUBST(EMACS_MANIFEST)
2078 AC_SUBST(W32_RES_LINK)
2079 AC_SUBST(FIRSTFILE_OBJ)
2082 AC_SUBST(LIBS_ECLIENT)
2083 AC_SUBST(LIB_WSOCK32)
2085 AC_SUBST(XARGS_LIMIT)
2087 if test "${HAVE_W32}" = "yes"; then
2092 ## $window_system is now set to the window system we will
2100 case "${window_system}" in
2105 case "${with_x_toolkit}" in
2106 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2107 motif ) USE_X_TOOLKIT=MOTIF ;;
2109 term_header=gtkutil.h
2110 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2111 dnl USE_X_TOOLKIT is set.
2112 USE_X_TOOLKIT=none ;;
2113 gtk2 ) with_gtk2=yes
2114 term_header=gtkutil.h
2115 USE_X_TOOLKIT=none ;;
2116 gtk3 ) with_gtk3=yes
2117 term_header=gtkutil.h
2118 USE_X_TOOLKIT=none ;;
2119 no ) USE_X_TOOLKIT=none ;;
2120 dnl If user did not say whether to use a toolkit, make this decision later:
2121 dnl use the toolkit if we have gtk, or X11R5 or newer.
2122 * ) USE_X_TOOLKIT=maybe ;;
2126 term_header=nsterm.h
2129 term_header=w32term.h
2133 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2134 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2135 if test "$HAVE_XSERVER" = true ||
2136 test -n "$DISPLAY" ||
2138 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2139 test "$emacs_libX11" != '/usr/lib/libX11.*'
2142 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2143 were found. You should install the relevant development files for X
2144 and for the toolkit you want, such as Gtk+ or Motif. Also make
2145 sure you have development files for image handling, i.e.
2146 tiff, gif, jpeg, png and xpm.
2147 If you are sure you want Emacs compiled without X window support, pass
2153 # Does the opsystem file prohibit the use of the GNU malloc?
2154 # Assume not, until told otherwise.
2158 [whether malloc is Doug Lea style],
2159 [emacs_cv_var_doug_lea_malloc],
2160 [emacs_cv_var_doug_lea_malloc=no
2161 dnl Hooks do not work with address sanitization.
2162 if test "$emacs_cv_sanitize_address" != yes; then
2165 [[#include <malloc.h>
2166 static void hook (void) {}]],
2167 [[malloc_set_state (malloc_get_state ());
2168 __after_morecore_hook = hook;
2169 __malloc_initialize_hook = hook;]])],
2170 [emacs_cv_var_doug_lea_malloc=yes])
2172 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2177 test "$CANNOT_DUMP" = yes ||
2179 ## darwin ld insists on the use of malloc routines in the System framework.
2180 darwin | mingw32 | nacl | sol2-10) ;;
2181 cygwin) hybrid_malloc=yes
2183 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2186 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2187 && test "${UNEXEC_OBJ}" = unexelf.o; then
2193 if test "${system_malloc}" = "yes"; then
2194 AC_DEFINE([SYSTEM_MALLOC], 1,
2195 [Define to 1 to use the system memory allocator, even if it is not
2199 (The GNU allocators don't work with this system configuration.)"
2201 elif test "$hybrid_malloc" = yes; then
2202 AC_DEFINE(HYBRID_MALLOC, 1,
2203 [Define to use gmalloc before dumping and the system malloc after.])
2206 GNU_MALLOC_reason=" (only before dumping)"
2207 GMALLOC_OBJ=gmalloc.o
2210 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2211 VMLIMIT_OBJ=vm-limit.o
2213 AC_CHECK_HEADERS([sys/vlimit.h])
2214 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2217 [[extern char data_start[]; char ch;]],
2218 [[return data_start < &ch;]])],
2219 [emacs_cv_data_start=yes],
2220 [emacs_cv_data_start=no])])
2221 if test $emacs_cv_data_start = yes; then
2222 AC_DEFINE([HAVE_DATA_START], 1,
2223 [Define to 1 if data_start is the address of the start
2224 of the main data segment.])
2227 AC_SUBST([HYBRID_MALLOC])
2228 AC_SUBST(GMALLOC_OBJ)
2229 AC_SUBST(VMLIMIT_OBJ)
2231 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2232 if test "$GNU_MALLOC" = yes ; then
2234 (Using Doug Lea's new malloc from the GNU C Library.)"
2236 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2237 [Define to 1 if the system memory allocator is Doug Lea style,
2238 with malloc hooks and malloc_set_state.])
2240 ## Use mmap directly for allocating larger buffers.
2241 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2242 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2243 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2245 mingw32|gnu*) REL_ALLOC=no ;;
2249 if test x"${REL_ALLOC}" = x; then
2250 REL_ALLOC=${GNU_MALLOC}
2253 use_mmap_for_buffers=no
2255 mingw32) use_mmap_for_buffers=yes ;;
2259 if test $use_mmap_for_buffers = yes; then
2260 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2264 LIBS="$LIBS_SYSTEM $LIBS"
2266 dnl FIXME replace main with a function we actually want from this library.
2267 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2269 dnl Check for the POSIX thread library.
2271 AC_CHECK_HEADERS_ONCE(pthread.h)
2272 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2273 AC_CACHE_CHECK([for pthread library],
2274 [emacs_cv_pthread_lib],
2275 [emacs_cv_pthread_lib=no
2277 for emacs_pthread_lib in 'none needed' -lpthread; do
2278 case $emacs_pthread_lib in
2279 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2283 [[#include <pthread.h>
2285 sigset_t old_mask, new_mask;
2286 void noop (void) {}]],
2287 [[pthread_t th = pthread_self ();
2289 status += pthread_create (&th, 0, 0, 0);
2290 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2291 status += pthread_kill (th, 0);
2292 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2293 || defined DOUG_LEA_MALLOC)
2294 /* Test for pthread_atfork only if gmalloc uses it,
2295 as older-style hosts like MirBSD 10 lack it. */
2296 status += pthread_atfork (noop, noop, noop);
2299 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2301 if test "$emacs_cv_pthread_lib" != no; then
2305 if test "$emacs_cv_pthread_lib" != no; then
2306 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2307 case $emacs_cv_pthread_lib in
2308 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2310 ac_cv_func_pthread_sigmask=yes
2311 # Some systems optimize for single-threaded programs by default, and
2312 # need special flags to disable these optimizations. For example, the
2313 # definition of 'errno' in <errno.h>.
2316 AC_DEFINE([_REENTRANT], 1,
2317 [Define to 1 if your system requires this in multithreaded code.]);;
2319 AC_DEFINE([_THREAD_SAFE], 1,
2320 [Define to 1 if your system requires this in multithreaded code.]);;
2324 AC_SUBST([LIB_PTHREAD])
2326 AC_MSG_CHECKING([for thread support])
2328 if test "$with_threads" = yes; then
2329 if test "$emacs_cv_pthread_lib" != no; then
2330 AC_DEFINE(THREADS_ENABLED, 1,
2331 [Define to 1 if you want elisp thread support.])
2333 elif test "${opsys}" = "mingw32"; then
2334 dnl MinGW can do native Windows threads even without pthreads
2335 AC_DEFINE(THREADS_ENABLED, 1,
2336 [Define to 1 if you want elisp thread support.])
2340 AC_MSG_RESULT([$threads_enabled])
2342 dnl Check for need for bigtoc support on IBM AIX
2346 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2348 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2349 *) gdb_cv_bigtoc=-bbigtoc ;;
2352 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2353 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2358 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2359 # is for the tests that follow. We set them back later on.
2361 REAL_CFLAGS="$CFLAGS"
2362 REAL_CPPFLAGS="$CPPFLAGS"
2365 if test "${HAVE_X11}" = "yes"; then
2366 DEFS="$C_SWITCH_X_SITE $DEFS"
2367 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2369 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2370 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2372 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2373 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2374 # but it's more convenient here to set LD_RUN_PATH since this
2375 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2376 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2377 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2381 if test "${opsys}" = "gnu-linux"; then
2382 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2383 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2384 [[XOpenDisplay ("foo");]])],
2385 [xgnu_linux_first_failure=no],
2386 [xgnu_linux_first_failure=yes])
2387 if test "${xgnu_linux_first_failure}" = "yes"; then
2388 OLD_CPPFLAGS="$CPPFLAGS"
2390 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2391 LIBS="$LIBS -b i486-linuxaout"
2392 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2393 [[XOpenDisplay ("foo");]])],
2394 [xgnu_linux_second_failure=no],
2395 [xgnu_linux_second_failure=yes])
2396 if test "${xgnu_linux_second_failure}" = "yes"; then
2397 # If we get the same failure with -b, there is no use adding -b.
2398 # So leave it out. This plays safe.
2401 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2402 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2405 CPPFLAGS=$OLD_CPPFLAGS
2412 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2413 # header files included from there.
2414 AC_MSG_CHECKING(for Xkb)
2415 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2416 #include <X11/XKBlib.h>]],
2417 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2418 emacs_xkb=yes, emacs_xkb=no)
2419 AC_MSG_RESULT($emacs_xkb)
2420 if test $emacs_xkb = yes; then
2421 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2424 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2425 XScreenNumberOfScreen)
2428 if test "${window_system}" = "x11"; then
2429 AC_MSG_CHECKING(X11 version 6)
2430 AC_CACHE_VAL(emacs_cv_x11_version_6,
2431 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2432 [[#if XlibSpecificationRelease < 6
2435 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2436 if test $emacs_cv_x11_version_6 = yes; then
2437 AC_MSG_RESULT(6 or newer)
2438 AC_DEFINE(HAVE_X11R6, 1,
2439 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2440 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2441 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2445 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2446 [Define if you have usable X11R6-style XIM support.])
2450 AC_MSG_RESULT(before 6)
2455 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2457 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2458 if test "${with_rsvg}" != "no"; then
2459 RSVG_REQUIRED=2.11.0
2460 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2462 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2463 AC_SUBST(RSVG_CFLAGS)
2466 if test $HAVE_RSVG = yes; then
2467 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2468 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2469 # Windows loads librsvg dynamically
2470 if test "${opsys}" = "mingw32"; then
2478 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2479 if test "${with_imagemagick}" != "no"; then
2480 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2481 ## 6.8.2 makes Emacs crash; see Bug#13867.
2482 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2483 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2484 AC_SUBST(IMAGEMAGICK_CFLAGS)
2485 AC_SUBST(IMAGEMAGICK_LIBS)
2487 if test $HAVE_IMAGEMAGICK = yes; then
2488 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2491 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2492 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2493 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2500 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2501 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2502 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2503 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2504 GETADDRINFO_A_LIBS="-lanl"
2505 AC_SUBST(GETADDRINFO_A_LIBS)
2510 gtk_term_header=$term_header
2513 if test "${opsys}" != "mingw32"; then
2514 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2517 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2519 dnl Checks for libraries.
2520 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2521 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2522 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2523 AC_MSG_ERROR($GTK_PKG_ERRORS)
2525 if test "$pkg_check_gtk" = "yes"; then
2526 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2527 GTK_OBJ=emacsgtkfixed.o
2528 gtk_term_header=gtkutil.h
2529 USE_GTK_TOOLKIT="GTK3"
2530 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2531 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2532 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2533 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2534 [Define to 1 to disable Glib deprecation warnings.])
2538 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2542 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2545 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2547 dnl Checks for libraries.
2548 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2549 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2550 if test "$pkg_check_gtk" = "no" &&
2551 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2553 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2555 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2562 if test x"$pkg_check_gtk" = xyes; then
2565 CFLAGS="$CFLAGS $GTK_CFLAGS"
2566 LIBS="$GTK_LIBS $LIBS"
2567 dnl Try to compile a simple GTK program.
2568 AC_MSG_CHECKING([whether GTK compiles])
2572 [[/* Check the Gtk and Glib APIs. */
2573 #include <gtk/gtk.h>
2574 #include <glib-object.h>
2576 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2580 GtkSettings *gs = 0;
2581 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2582 strict C prohibits this. Use gtk_main_iteration to test that the
2583 libraries are there. */
2584 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2585 0, 0, 0, G_CALLBACK (callback), 0))
2586 gtk_main_iteration ();
2589 AC_MSG_RESULT([$GTK_COMPILES])
2590 if test "${GTK_COMPILES}" != "yes"; then
2592 if test "$USE_X_TOOLKIT" != "maybe"; then
2593 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2596 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2598 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2599 GTK_OBJ="gtkutil.o $GTK_OBJ"
2600 term_header=$gtk_term_header
2602 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2603 closing open displays. This is no problem if you just use
2604 one display, but if you use more than one and close one of them
2606 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2614 if test "${HAVE_GTK}" = "yes"; then
2616 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2617 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2618 if test "$with_toolkit_scroll_bars" != no; then
2619 with_toolkit_scroll_bars=yes
2622 dnl Check if we have the old file selection dialog declared and
2623 dnl in the link library. In 2.x it may be in the library,
2624 dnl but not declared if deprecated featured has been selected out.
2625 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2626 HAVE_GTK_FILE_SELECTION=no
2627 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2628 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2629 #include <gtk/gtk.h>])
2630 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2631 AC_CHECK_FUNCS(gtk_file_selection_new)
2634 dnl Same as above for gtk_handle_box.
2635 HAVE_GTK_HANDLE_BOX=no
2636 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2637 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2638 #include <gtk/gtk.h>])
2639 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2640 AC_CHECK_FUNCS(gtk_handle_box_new)
2643 dnl Same as above for gtk_tearoff_menu_item.
2644 HAVE_GTK_TEAROFF_MENU_ITEM=no
2645 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2646 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2647 #include <gtk/gtk.h>])
2648 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2649 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2652 dnl Check for functions introduced in 2.14 and later.
2653 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2654 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2655 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2656 gtk_orientable_set_orientation \
2657 gtk_window_set_has_resize_grip)
2659 term_header=gtkutil.h
2663 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2666 if test "$with_xwidgets" != "no"; then
2667 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2668 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2670 WEBKIT_REQUIRED=2.12
2671 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2672 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2673 HAVE_XWIDGETS=$HAVE_WEBKIT
2674 test $HAVE_XWIDGETS = yes ||
2675 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2677 XWIDGETS_OBJ=xwidget.o
2678 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2680 AC_SUBST(XWIDGETS_OBJ)
2685 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2686 dnl other platforms.
2689 if test "${with_dbus}" = "yes"; then
2690 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2691 if test "$HAVE_DBUS" = yes; then
2692 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2693 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2694 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2697 LIBS="$LIBS $DBUS_LIBS"
2698 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2699 dbus_type_is_valid \
2700 dbus_validate_bus_name \
2701 dbus_validate_path \
2702 dbus_validate_interface \
2703 dbus_validate_member)
2708 AC_SUBST(DBUS_CFLAGS)
2712 dnl GSettings has been tested under GNU/Linux only.
2714 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2715 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2716 if test "$HAVE_GSETTINGS" = "yes"; then
2718 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2720 LIBS="$LIBS $GSETTINGS_LIBS"
2721 AC_MSG_CHECKING([whether GSettings is in gio])
2724 [[/* Check that gsettings really is present. */
2725 #include <glib-object.h>
2726 #include <gio/gio.h>
2729 GSettings *settings;
2730 GVariant *val = g_settings_get_value (settings, "");
2732 [], HAVE_GSETTINGS=no)
2733 AC_MSG_RESULT([$HAVE_GSETTINGS])
2735 if test "$HAVE_GSETTINGS" = "yes"; then
2736 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2737 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2738 SETTINGS_LIBS="$GSETTINGS_LIBS"
2745 dnl GConf has been tested under GNU/Linux only.
2746 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2748 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2749 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2750 if test "$HAVE_GCONF" = yes; then
2751 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2752 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2753 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2754 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2758 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2759 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2760 if test "$HAVE_GOBJECT" = "yes"; then
2761 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2762 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2764 SAVE_CFLAGS="$CFLAGS"
2766 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2767 LIBS="$SETTINGS_LIBS $LIBS"
2768 CFLAGS="$SAVE_CFLAGS"
2771 AC_SUBST(SETTINGS_CFLAGS)
2772 AC_SUBST(SETTINGS_LIBS)
2775 dnl SELinux is available for GNU/Linux only.
2778 if test "${with_selinux}" = "yes"; then
2779 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2780 if test "$HAVE_LIBSELINUX" = yes; then
2781 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2782 LIBSELINUX_LIBS=-lselinux
2785 AC_SUBST(LIBSELINUX_LIBS)
2788 if test "${with_gnutls}" = "yes" ; then
2789 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2790 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2791 if test "${HAVE_GNUTLS}" = "yes"; then
2792 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2793 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2794 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2797 # Windows loads GnuTLS dynamically
2798 if test "${opsys}" = "mingw32"; then
2803 AC_SUBST(LIBGNUTLS_LIBS)
2804 AC_SUBST(LIBGNUTLS_CFLAGS)
2807 if test "${with_libsystemd}" = "yes" ; then
2808 dnl This code has been tested with libsystemd 222 and later.
2809 dnl FIXME: Find the earliest version number for which Emacs should work,
2810 dnl and change '222' to that number.
2811 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2812 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2813 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2814 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2818 AC_SUBST(LIBSYSTEMD_LIBS)
2819 AC_SUBST(LIBSYSTEMD_CFLAGS)
2824 dnl MS Windows native file monitor is available for mingw32 only.
2825 case $with_file_notification,$opsys in
2827 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2828 this is only supported on MS-Windows native and MinGW32 builds.
2829 Consider using gfile instead.])
2831 w32,* | yes,mingw32)
2832 AC_CHECK_HEADER(windows.h)
2833 if test "$ac_cv_header_windows_h" = yes ; then
2834 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2835 NOTIFY_OBJ=w32notify.o
2836 NOTIFY_SUMMARY="yes (w32)"
2840 dnl inotify is available only on GNU/Linux.
2841 case $with_file_notification,$NOTIFY_OBJ in
2843 AC_CHECK_HEADER(sys/inotify.h)
2844 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2845 AC_CHECK_FUNC(inotify_init1)
2846 if test "$ac_cv_func_inotify_init1" = yes; then
2847 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2848 NOTIFY_OBJ=inotify.o
2849 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2854 dnl kqueue is available on BSD-like systems.
2855 case $with_file_notification,$NOTIFY_OBJ in
2857 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2858 if test "$HAVE_KQUEUE" = "yes"; then
2859 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2860 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2861 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2862 NOTIFY_LIBS=$KQUEUE_LIBS
2864 NOTIFY_SUMMARY="yes -lkqueue"
2866 AC_SEARCH_LIBS(kqueue, [])
2867 if test "$ac_cv_search_kqueue" != no; then
2868 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2870 NOTIFY_SUMMARY="yes (kqueue)"
2875 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2876 dnl has been added in glib 2.24. It has been tested under
2878 case $with_file_notification,$NOTIFY_OBJ in
2880 if test "${HAVE_NS}" = yes; then
2881 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2882 Consider kqueue instead.])
2884 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2885 if test "$HAVE_GFILENOTIFY" = "yes"; then
2886 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2887 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2888 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2889 NOTIFY_OBJ=gfilenotify.o
2890 NOTIFY_SUMMARY="yes -lgio (gfile)"
2895 case $with_file_notification,$NOTIFY_OBJ in
2896 yes,* | no,* | *,?*) ;;
2897 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2900 if test -n "$NOTIFY_OBJ"; then
2901 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2903 AC_SUBST(NOTIFY_CFLAGS)
2904 AC_SUBST(NOTIFY_LIBS)
2905 AC_SUBST(NOTIFY_OBJ)
2907 dnl Do not put whitespace before the #include statements below.
2908 dnl Older compilers (eg sunos4 cc) choke on it.
2911 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2912 if test "$with_xaw3d" != no; then
2913 AC_CACHE_VAL(emacs_cv_xaw3d,
2914 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2915 #include <X11/Intrinsic.h>
2916 #include <X11/Xaw3d/Simple.h>]],
2918 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2919 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2920 emacs_cv_xaw3d=no)])
2924 if test $emacs_cv_xaw3d = yes; then
2925 AC_MSG_CHECKING(for xaw3d)
2926 AC_MSG_RESULT([yes; using Lucid toolkit])
2930 AC_DEFINE(HAVE_XAW3D, 1,
2931 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2933 AC_MSG_CHECKING(for xaw3d)
2935 AC_MSG_CHECKING(for libXaw)
2936 AC_CACHE_VAL(emacs_cv_xaw,
2937 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2938 #include <X11/Intrinsic.h>
2939 #include <X11/Xaw/Simple.h>]],
2943 if test $emacs_cv_xaw = yes; then
2944 AC_MSG_RESULT([yes; using Lucid toolkit])
2947 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2948 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2950 AC_MSG_ERROR([No X toolkit could be found.
2951 If you are sure you want Emacs compiled without an X toolkit, pass
2953 to configure. Otherwise, install the development libraries for the toolkit
2954 that you want to use (e.g. Gtk+) and re-run configure.])
2959 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2963 if test "${USE_X_TOOLKIT}" != "none"; then
2964 AC_MSG_CHECKING(X11 toolkit version)
2965 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2966 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2967 [[#if XtSpecificationRelease < 6
2970 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2971 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2972 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2973 AC_MSG_RESULT(6 or newer)
2974 AC_DEFINE(HAVE_X11XTR6, 1,
2975 [Define to 1 if you have the X11R6 or newer version of Xt.])
2976 LIBXTR6="-lSM -lICE"
2978 ## Use libw.a along with X11R6 Xt.
2979 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2982 AC_MSG_RESULT(before 6)
2985 dnl If using toolkit, check whether libXmu.a exists.
2986 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2988 if test x$HAVE_X11XTR6 = xyes; then
2989 OTHERLIBS='-lXt -lSM -lICE'
2993 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2994 if test "X$LIBS" != "X$OLDLIBS"; then
2995 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2998 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3004 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3005 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3006 if test -d /usr/include/openmotif; then
3007 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3008 emacs_cv_openmotif=yes
3009 case "$canonical" in
3010 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3011 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3014 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3017 emacs_cv_openmotif=no
3019 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3020 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3021 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3024 Motif version prior to 2.1.
3026 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3027 if test $emacs_cv_motif_version_2_1 = yes; then
3028 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3029 if test x$emacs_cv_openmotif = xyes; then
3030 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3033 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3034 # We put this in CFLAGS temporarily to precede other -I options
3035 # that might be in CFLAGS temporarily.
3036 # We put this in CPPFLAGS where it precedes the other -I options.
3037 OLD_CPPFLAGS=$CPPFLAGS
3039 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3040 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3041 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3043 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3044 if test $emacs_cv_lesstif = yes; then
3045 # Make sure this -I option remains in CPPFLAGS after it is set
3046 # back to REAL_CPPFLAGS.
3047 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3048 # have those other -I options anyway. Ultimately, having this
3049 # directory ultimately in CPPFLAGS will be enough.
3050 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3051 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3054 CPPFLAGS=$OLD_CPPFLAGS
3057 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3058 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3061 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3062 dnl using Motif or Xaw3d is available, and unless
3063 dnl --with-toolkit-scroll-bars=no was specified.
3065 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3066 [Define to 1 if we should use toolkit scroll bars.])dnl
3067 USE_TOOLKIT_SCROLL_BARS=no
3068 if test "${with_toolkit_scroll_bars}" != "no"; then
3069 if test "${USE_X_TOOLKIT}" != "none"; then
3070 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3071 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3073 USE_TOOLKIT_SCROLL_BARS=yes
3074 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3075 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3076 USE_TOOLKIT_SCROLL_BARS=yes
3078 elif test "${HAVE_GTK}" = "yes"; then
3079 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3080 USE_TOOLKIT_SCROLL_BARS=yes
3081 elif test "${HAVE_NS}" = "yes"; then
3082 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3083 USE_TOOLKIT_SCROLL_BARS=yes
3084 elif test "${HAVE_W32}" = "yes"; then
3085 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3086 USE_TOOLKIT_SCROLL_BARS=yes
3090 dnl See if XIM is available.
3091 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3092 #include <X11/Xlib.h>
3093 #include <X11/Xresource.h>]],
3094 [[XIMProc callback;]])],
3096 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3099 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3101 if test "${with_xim}" != "no"; then
3102 AC_DEFINE(USE_XIM, 1,
3103 [Define to 1 if we should use XIM, if it is available.])
3107 if test "${HAVE_XIM}" != "no"; then
3109 if test "$GCC" = yes; then
3110 CFLAGS="$CFLAGS --pedantic-errors"
3112 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3113 #include <X11/Xlib.h>
3114 #include <X11/Xresource.h>]],
3120 XPointer *client_data;
3122 /* If we're not using GCC, it's probably not XFree86, and this is
3123 probably right, but we can't use something like --pedantic-errors. */
3124 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3125 char*, XIMProc, XPointer*);
3127 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3129 [emacs_cv_arg6_star=yes])
3130 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3131 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3132 either XPointer or XPointer*.])dnl
3133 if test "$emacs_cv_arg6_star" = yes; then
3134 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3136 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3141 ### Start of font-backend (under any platform) section.
3142 # (nothing here yet -- this is a placeholder)
3143 ### End of font-backend (under any platform) section.
3145 ### Start of font-backend (under X11) section.
3146 if test "${HAVE_X11}" = "yes"; then
3147 ## Use -lXft if available, unless '--with-xft=no'.
3149 if test "x${with_x}" = "xno"; then
3153 if test "$with_xft" != no; then
3154 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3155 with_xft=$HAVE_FONTCONFIG
3158 if test "x${with_xft}" != "xno"; then
3160 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3161 ## Because xftfont.c uses XRenderQueryExtension, we also
3162 ## need to link to -lXrender.
3164 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3165 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3166 OLD_CPPFLAGS="$CPPFLAGS"
3167 OLD_CFLAGS="$CFLAGS"
3169 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3170 CFLAGS="$CFLAGS $XFT_CFLAGS"
3171 XFT_LIBS="-lXrender $XFT_LIBS"
3172 LIBS="$XFT_LIBS $LIBS"
3173 AC_CHECK_HEADER(X11/Xft/Xft.h,
3174 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3175 [[#include <X11/X.h>]])
3177 if test "${HAVE_XFT}" = "yes"; then
3178 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3180 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3181 fi # "${HAVE_XFT}" = "yes"
3182 CPPFLAGS=$OLD_CPPFLAGS
3185 fi # "$HAVE_XFT" != no
3186 fi # "x${with_xft}" != "xno"
3188 ## We used to allow building with FreeType and without Xft.
3189 ## However, the ftx font backend driver is not in good shape.
3190 if test "$HAVE_XFT" != "yes"; then
3191 dnl For the "Does Emacs use" message at the end.
3195 dnl Strict linkers fail with
3196 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3197 dnl if -lfreetype is not specified.
3198 dnl The following is needed to set FREETYPE_LIBS.
3199 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3201 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3205 if test "${HAVE_FREETYPE}" = "yes"; then
3206 AC_DEFINE(HAVE_FREETYPE, 1,
3207 [Define to 1 if using the freetype and fontconfig libraries.])
3208 if test "${with_libotf}" != "no"; then
3209 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3210 if test "$HAVE_LIBOTF" = "yes"; then
3211 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3212 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3213 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3214 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3215 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3216 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3217 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3221 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3222 dnl Does the new font backend require it, or can it work without it?
3226 if test "${HAVE_LIBOTF}" = yes; then
3227 if test "${with_m17n_flt}" != "no"; then
3228 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3229 if test "$HAVE_M17N_FLT" = "yes"; then
3230 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3241 ### End of font-backend (under X11) section.
3243 AC_SUBST(FREETYPE_CFLAGS)
3244 AC_SUBST(FREETYPE_LIBS)
3245 AC_SUBST(FONTCONFIG_CFLAGS)
3246 AC_SUBST(FONTCONFIG_LIBS)
3247 AC_SUBST(LIBOTF_CFLAGS)
3248 AC_SUBST(LIBOTF_LIBS)
3249 AC_SUBST(M17N_FLT_CFLAGS)
3250 AC_SUBST(M17N_FLT_LIBS)
3253 if test "${HAVE_X11}" = "yes"; then
3254 if test "${with_cairo}" != "no"; then
3255 CAIRO_REQUIRED=1.12.0
3256 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3257 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3258 if test $HAVE_CAIRO = yes; then
3259 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3261 AC_MSG_ERROR([cairo requested but not found.])
3264 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3265 LIBS="$LIBS $CAIRO_LIBS"
3266 AC_SUBST(CAIRO_CFLAGS)
3267 AC_SUBST(CAIRO_LIBS)
3271 if test "${HAVE_X11}" = "yes"; then
3272 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3273 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3274 if test "${HAVE_XCB}" = "yes"; then
3275 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3276 if test "${HAVE_X11_XCB}" = "yes"; then
3277 AC_DEFINE(USE_XCB, 1,
3278 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3279 X11/XCB programming.])
3280 XCB_LIBS="-lX11-xcb -lxcb"
3286 ### Use -lXpm if available, unless '--with-xpm=no'.
3287 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3288 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3289 ### we need to set LDFLAGS accordingly.
3292 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3293 if test "${with_xpm}" != "no"; then
3294 SAVE_LDFLAGS="$LDFLAGS"
3295 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3296 AC_CHECK_HEADER(noX/xpm.h,
3297 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3298 if test "${HAVE_XPM}" = "yes"; then
3299 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3300 AC_EGREP_CPP(no_return_alloc_pixels,
3301 [#include "noX/xpm.h"
3302 #ifndef XpmReturnAllocPixels
3303 no_return_alloc_pixels
3305 ], HAVE_XPM=no, HAVE_XPM=yes)
3307 if test "${HAVE_XPM}" = "yes"; then
3311 LDFLAGS="$SAVE_LDFLAGS"
3316 if test "${HAVE_XPM}" = "yes"; then
3317 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3322 if test "${HAVE_X11}" = "yes"; then
3323 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3324 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3326 if test "${with_xpm}" != "no"; then
3327 AC_CHECK_HEADER(X11/xpm.h,
3328 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3329 if test "${HAVE_XPM}" = "yes"; then
3330 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3331 AC_EGREP_CPP(no_return_alloc_pixels,
3332 [#include "X11/xpm.h"
3333 #ifndef XpmReturnAllocPixels
3334 no_return_alloc_pixels
3336 ], HAVE_XPM=no, HAVE_XPM=yes)
3338 if test "${HAVE_XPM}" = "yes"; then
3346 if test "${HAVE_XPM}" = "yes"; then
3347 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3349 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3350 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3355 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3356 ### slightly different requirements wrt image libraries (it doesn't
3357 ### use -lXpm because it loads the xpm shared library dynamically at
3359 if test "${opsys}" = "mingw32"; then
3360 if test "${with_xpm}" != "no"; then
3361 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3365 if test "${HAVE_XPM}" = "yes"; then
3366 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3372 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3375 if test "${with_jpeg}" != "no"; then
3376 AC_CACHE_CHECK([for jpeglib 6b or later],
3379 for emacs_cv_jpeglib in yes -ljpeg no; do
3380 case $emacs_cv_jpeglib in
3383 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3387 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3388 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3389 #include <jpeglib.h>
3391 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3392 struct jpeg_decompress_struct cinfo;
3395 jpeg_create_decompress (&cinfo);
3396 WARNMS (&cinfo, JWRN_JPEG_EOF);
3397 jpeg_destroy_decompress (&cinfo);
3399 [emacs_link_ok=yes],
3402 test $emacs_link_ok = yes && break
3404 if test "$emacs_cv_jpeglib" != no; then
3406 AC_DEFINE([HAVE_JPEG], 1,
3407 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3408 ### mingw32 doesn't use -ljpeg, since it loads the library
3409 ### dynamically when needed, and doesn't want a run-time
3410 ### dependency on the jpeglib DLL.
3411 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3412 && LIBJPEG=$emacs_cv_jpeglib
3419 if test "${with_zlib}" != "no"; then
3421 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3423 case $ac_cv_search_inflateEnd in
3424 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3427 if test "${HAVE_ZLIB}" = "yes"; then
3428 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3429 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3430 if test "${opsys}" = "mingw32"; then
3436 ### Dynamic modules support
3441 if test "${with_modules}" != "no"; then
3445 MODULES_SUFFIX=".so"
3449 MODULES_SUFFIX=".dll"
3453 MODULES_SUFFIX=".so"
3457 # BSD systems have dlopen in libc.
3458 AC_CHECK_FUNC([dlopen],
3459 [MODULES_SUFFIX=".so"
3464 if test "${HAVE_MODULES}" = no; then
3465 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3468 LIBS="$LIBS $LIBMODULES"
3469 AC_CHECK_FUNCS([dladdr dlfunc])
3474 if test "${HAVE_MODULES}" = yes; then
3475 MODULES_OBJ="dynlib.o emacs-module.o"
3476 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3477 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3478 [System extension for dynamic libraries])
3480 AC_SUBST(MODULES_OBJ)
3481 AC_SUBST(LIBMODULES)
3482 AC_SUBST(HAVE_MODULES)
3483 AC_SUBST(MODULES_SUFFIX)
3485 ### Use -lpng if available, unless '--with-png=no'.
3489 if test "${NS_IMPL_COCOA}" = yes; then
3491 elif test "${with_png}" != no; then
3492 # mingw32 loads the library dynamically.
3493 if test "$opsys" = mingw32; then
3494 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3495 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3496 AC_MSG_CHECKING([for png])
3497 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3498 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3499 # libpng-config does not work; configure by hand.
3500 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3501 # in /usr/include/libpng.
3502 if test -r /usr/include/libpng/png.h &&
3503 test ! -r /usr/include/png.h; then
3504 png_cflags=-I/usr/include/libpng
3512 CFLAGS="$CFLAGS $png_cflags"
3513 LIBS="$png_ldflags -lz -lm $LIBS"
3515 [AC_LANG_PROGRAM([[#include <png.h>]],
3516 [[return !png_get_channels (0, 0);]])],
3518 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3520 # $LIBPNG requires explicit -lz in some cases.
3521 # We don't know what those cases are, exactly, so play it safe and
3522 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3523 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3524 LIBPNG="$LIBPNG -lz"
3528 AC_MSG_RESULT([$HAVE_PNG])
3531 if test $HAVE_PNG = yes; then
3532 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3535 CFLAGS="$CFLAGS $PNG_CFLAGS"
3536 AC_CHECK_DECL([png_longjmp],
3538 [AC_DEFINE([PNG_DEPSTRUCT], [],
3539 [Define to empty to suppress deprecation warnings when building
3540 with --enable-gcc-warnings and with libpng versions before 1.5,
3541 which lack png_longjmp.])],
3547 AC_SUBST(PNG_CFLAGS)
3549 ### Use -ltiff if available, unless '--with-tiff=no'.
3550 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3553 if test "${opsys}" = "mingw32"; then
3554 if test "${with_tiff}" != "no"; then
3555 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3557 if test "${HAVE_TIFF}" = "yes"; then
3558 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3560 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3561 if test "${with_tiff}" != "no"; then
3562 AC_CHECK_HEADER(tiffio.h,
3564 # At least one tiff package requires the jpeg library.
3565 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3566 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3569 if test "${HAVE_TIFF}" = "yes"; then
3570 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3571 dnl FIXME -lz -lm, as per libpng?
3577 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3578 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3581 if test "${opsys}" = "mingw32"; then
3582 if test "${with_gif}" != "no"; then
3583 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3585 if test "${HAVE_GIF}" = "yes"; then
3586 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3588 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3589 || test "${HAVE_W32}" = "yes"; then
3590 AC_CHECK_HEADER(gif_lib.h,
3591 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3592 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3593 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3594 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3596 if test "$HAVE_GIF" = yes; then
3598 elif test "$HAVE_GIF" = maybe; then
3599 # If gif_lib.h but no libgif, try libungif.
3600 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3601 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3604 if test "${HAVE_GIF}" = "yes"; then
3605 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3610 dnl Check for required libraries.
3613 if test "${HAVE_X11}" = "yes"; then
3614 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3615 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3616 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3617 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3618 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3619 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3620 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3621 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3622 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3623 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3625 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3626 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3627 if test "X${MISSING}" != X; then
3628 AC_MSG_ERROR([The following required libraries were not found:
3630 Maybe some development libraries/packages are missing?
3631 If you don't want to link with them give
3633 as options to configure])
3636 ### Use -lgpm if available, unless '--with-gpm=no'.
3639 if test "${with_gpm}" != "no"; then
3640 AC_CHECK_HEADER(gpm.h,
3641 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3643 if test "${HAVE_GPM}" = "yes"; then
3644 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3650 dnl Check for malloc/malloc.h on darwin
3651 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3654 ### Use NeXTstep API to implement GUI.
3655 if test "${HAVE_NS}" = "yes"; then
3656 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3657 if test "${NS_IMPL_COCOA}" = "yes"; then
3658 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3660 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3661 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3662 if test $NS_GNUSTEP_CONFIG != yes; then
3663 # See also .m.o rule in src/Makefile.in. */
3664 # FIXME: are all these flags really needed? Document here why. */
3665 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3666 ## Extra CFLAGS applied to src/*.m files.
3667 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3673 ### Use session management (-lSM -lICE) if available
3676 if test "${HAVE_X11}" = "yes"; then
3677 AC_CHECK_HEADER(X11/SM/SMlib.h,
3678 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3680 if test "${HAVE_X_SM}" = "yes"; then
3681 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3687 ### Use XRandr (-lXrandr) if available
3689 if test "${HAVE_X11}" = "yes"; then
3690 XRANDR_REQUIRED=1.2.2
3691 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3692 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3693 if test $HAVE_XRANDR = no; then
3694 # Test old way in case pkg-config doesn't have it (older machines).
3695 # Include Xrender.h by hand to work around bug in older Xrandr.h
3696 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3697 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3698 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3699 [], [AC_INCLUDES_DEFAULT
3700 #include <X11/extensions/Xrender.h>])
3701 if test $HAVE_XRANDR = yes; then
3702 XRANDR_LIBS=-lXrandr
3705 if test $HAVE_XRANDR = yes; then
3706 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3709 AC_SUBST(XRANDR_CFLAGS)
3710 AC_SUBST(XRANDR_LIBS)
3712 ### Use Xinerama (-lXinerama) if available
3714 if test "${HAVE_X11}" = "yes"; then
3715 XINERAMA_REQUIRED=1.0.2
3716 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3717 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3718 if test $HAVE_XINERAMA = no; then
3719 # Test old way in case pkg-config doesn't have it (older machines).
3720 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3721 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3722 if test $HAVE_XINERAMA = yes; then
3723 XINERAMA_LIBS=-lXinerama
3726 if test $HAVE_XINERAMA = yes; then
3727 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3730 AC_SUBST(XINERAMA_CFLAGS)
3731 AC_SUBST(XINERAMA_LIBS)
3733 ### Use Xfixes (-lXfixes) if available
3735 if test "${HAVE_X11}" = "yes"; then
3736 XFIXES_REQUIRED=4.0.0
3737 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3738 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3739 if test $HAVE_XFIXES = no; then
3740 # Test old way in case pkg-config doesn't have it (older machines).
3741 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3742 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3743 if test $HAVE_XFIXES = yes; then
3744 XFIXES_LIBS=-lXfixes
3747 if test $HAVE_XFIXES = yes; then
3748 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3751 AC_SUBST(XFIXES_CFLAGS)
3752 AC_SUBST(XFIXES_LIBS)
3754 ### Use Xdbe (-lXdbe) if available
3756 if test "${HAVE_X11}" = "yes"; then
3757 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3758 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3760 [#include <X11/Xlib.h>
3762 if test $HAVE_XDBE = yes; then
3765 if test $HAVE_XDBE = yes; then
3766 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3769 AC_SUBST(XDBE_CFLAGS)
3772 ### Use libxml (-lxml2) if available
3773 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3775 if test "${with_xml2}" != "no"; then
3776 ### I'm not sure what the version number should be, so I just guessed.
3777 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3778 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3779 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3780 SAVE_CPPFLAGS="$CPPFLAGS"
3781 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3782 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3783 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3785 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3789 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3790 AC_CHECK_HEADER(libxml/HTMLparser.h,
3791 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3792 [#include <libxml/HTMLparser.h>])])
3793 CPPFLAGS="$SAVE_CPPFLAGS"
3794 if test "${HAVE_LIBXML2}" = "yes"; then
3795 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3796 LIBXML2_LIBS="-lxml2"
3799 if test "${HAVE_LIBXML2}" = "yes"; then
3800 if test "${opsys}" != "mingw32"; then
3801 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3806 if test "${HAVE_LIBXML2}" = "yes"; then
3807 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3814 AC_SUBST(LIBXML2_LIBS)
3815 AC_SUBST(LIBXML2_CFLAGS)
3819 if test ! "$with_mailutils"; then
3820 # Check for mail-locking functions in a "mail" library. Probably this should
3821 # have the same check as for liblockfile below.
3822 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3823 if test $have_mail = yes; then
3825 AC_DEFINE([HAVE_LIBMAIL], [1],
3826 [Define to 1 if you have the 'mail' library (-lmail).])
3829 LIBS="$LIBS_MAIL $LIBS"
3830 AC_CHECK_FUNCS([touchlock])
3833 dnl Debian, at least:
3834 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3835 if test $have_lockfile = yes; then
3836 LIBS_MAIL=-llockfile
3837 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3838 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3840 # If we have the shared liblockfile, assume we must use it for mail
3841 # locking (e.g. Debian). If we couldn't link against liblockfile
3842 # (no liblockfile.a installed), ensure that we don't need to.
3843 dnl This works for files generally, not just executables.
3844 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3845 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3846 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3847 if test "$ac_cv_prog_liblockfile" = yes; then
3848 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3849 This probably means that movemail could lose mail.
3850 There may be a 'development' package to install containing liblockfile.])
3853 AC_CHECK_HEADERS([maillock.h])
3855 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3856 ## interlock access to the mail spool. The alternative is a lock file named
3857 ## /usr/spool/mail/$USER.lock.
3860 aix4-2) mail_lock="lockf" ;;
3862 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3864 ## On GNU/Linux systems, both methods are used by various mail programs.
3865 ## I assume most people are using newer mailers that have heard of flock.
3866 ## Change this if you need to.
3867 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3868 ## configure gets the right answers, and that means *NOT* using flock.
3869 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3870 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3871 ## Debian maintainer hasn't provided a clean fix for Emacs.
3872 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3873 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3874 ## correct logic. -- fx
3875 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3876 ## liblockfile is a Free Software replacement for libmail, used on
3877 ## Debian systems and elsewhere. -rfr.
3880 if test $have_mail = yes || test $have_lockfile = yes; then
3881 test $ac_cv_header_maillock_h = yes && mail_lock=no
3885 mail_lock="none-needed" ;;
3889 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3890 [Define if the mailer uses flock to interlock the mail spool.]);;
3892 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3893 [Define if the mailer uses lockf to interlock the mail spool.]);;
3897 *) BLESSMAIL_TARGET="need-blessmail" ;;
3900 AC_SUBST([BLESSMAIL_TARGET])
3901 AC_SUBST([LIBS_MAIL])
3904 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3905 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3906 getrusage get_current_dir_name \
3907 lrand48 random rint trunc \
3908 select getpagesize setlocale newlocale \
3909 getrlimit setrlimit shutdown \
3910 pthread_sigmask strsignal setitimer \
3911 sendto recvfrom getsockname getifaddrs freeifaddrs \
3913 getpwent endpwent getgrent endgrent \
3914 cfmakeraw cfsetspeed __executable_start log2 prctl)
3917 dnl No need to check for posix_memalign if aligned_alloc works.
3918 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3919 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3921 dnl Cannot use AC_CHECK_FUNCS
3922 AC_CACHE_CHECK([for __builtin_unwind_init],
3923 emacs_cv_func___builtin_unwind_init,
3924 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3925 emacs_cv_func___builtin_unwind_init=yes,
3926 emacs_cv_func___builtin_unwind_init=no)])
3927 if test $emacs_cv_func___builtin_unwind_init = yes; then
3928 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3929 [Define to 1 if you have the '__builtin_unwind_init' function.])
3932 AC_CHECK_HEADERS_ONCE(sys/un.h)
3937 AC_CHECK_FUNCS(grantpt)
3939 # PTY-related GNU extensions.
3940 AC_CHECK_FUNCS(getpt posix_openpt)
3942 # Check this now, so that we will NOT find the above functions in ncurses.
3943 # That is because we have not set up to link ncurses in lib-src.
3944 # It's better to believe a function is not available
3945 # than to expect to find it in ncurses.
3946 # Also we need tputs and friends to be able to build at all.
3947 AC_MSG_CHECKING([for library containing tputs])
3948 # Run a test program that contains a call to tputs, a call that is
3949 # never executed. This tests whether a pre-'main' dynamic linker
3950 # works with the library. It's too much trouble to actually call
3951 # tputs in the test program, due to portability hassles. When
3952 # cross-compiling, assume the test program will run if it links.
3953 AC_DEFUN([tputs_link_source], [
3955 [[extern void tputs (const char *, int, int (*)(int));
3956 int main (int argc, char **argv)
3959 tputs (argv[0], 0, 0);
3963 if test "${opsys}" = "mingw32"; then
3966 # Maybe curses should be tried earlier?
3967 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3968 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3970 if test -z "$tputs_library"; then
3974 LIBS_TERMCAP=-l$tputs_library
3976 LIBS="$LIBS_TERMCAP $LIBS"
3978 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3979 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3981 if test "X$msg" != Xno; then
3986 AC_MSG_RESULT([$msg])
3987 if test "X$msg" = Xno; then
3988 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3989 The following libraries were tried (in order):
3990 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3991 Please try installing whichever of these libraries is most appropriate
3992 for your system, together with its header files.
3993 For example, a libncurses-dev(el) or similar package.])
3996 ## Use termcap instead of terminfo?
3997 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3999 ## FIXME? In the cases below where we unconditionally set
4000 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4001 ## if that was found above to have tputs.
4002 ## Should we use the gnu* logic everywhere?
4004 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4005 ## The ncurses library has been moved out of the System framework in
4006 ## Mac OS X 10.2. So if configure detects it, set the command-line
4007 ## option to use it.
4008 darwin) LIBS_TERMCAP="-lncurses" ;;
4010 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4013 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4014 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4015 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4016 [[#if __FreeBSD_version < 400000
4019 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4021 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4023 if test $emacs_cv_freebsd_terminfo = yes; then
4024 LIBS_TERMCAP="-lncurses"
4027 LIBS_TERMCAP="-ltermcap"
4037 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4039 LIBS_TERMCAP="-ltermcap"
4043 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4045 ## hpux: Make sure we get select from libc rather than from libcurses
4046 ## because libcurses on HPUX 10.10 has a broken version of select.
4047 ## We used to use -lc -lcurses, but this may be cleaner.
4048 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4049 # set that way, now it uses the default). Isn't this a contradiction?
4050 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4054 TERMCAP_OBJ=tparam.o
4055 if test $TERMINFO = yes; then
4056 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4057 TERMCAP_OBJ=terminfo.o
4059 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4060 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4062 AC_SUBST(LIBS_TERMCAP)
4063 AC_SUBST(TERMCAP_OBJ)
4065 # GNU/Linux-specific timer functions.
4066 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4068 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4070 [[timerfd_create (CLOCK_REALTIME,
4071 TFD_CLOEXEC | TFD_NONBLOCK);
4072 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4073 [emacs_cv_have_timerfd=yes],
4074 [emacs_cv_have_timerfd=no])])
4075 if test "$emacs_cv_have_timerfd" = yes; then
4076 AC_DEFINE([HAVE_TIMERFD], 1,
4077 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4080 # Alternate stack for signal handlers.
4081 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4082 [emacs_cv_alternate_stack],
4084 [AC_LANG_PROGRAM([[#include <signal.h>
4087 struct sigaction sa;
4088 ss.ss_sp = malloc (SIGSTKSZ);
4089 ss.ss_size = SIGSTKSZ;
4090 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4091 sigaltstack (&ss, 0);
4092 sigaction (SIGSEGV, &sa, 0);]])],
4093 [emacs_cv_alternate_stack=yes],
4094 [emacs_cv_alternate_stack=no])])
4096 # Do we need the Hesiod library to provide the support routines?
4097 dnl FIXME? Should we be skipping this on Darwin too?
4100 if test "$with_hesiod" != no ; then
4101 # Don't set $LIBS here -- see comments above. FIXME which comments?
4103 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4104 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4105 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4106 if test "$resolv" = yes ; then
4112 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4113 hesiod=yes, :, $RESOLVLIB)])
4115 if test x"$hesiod" = xyes; then
4117 LIBRESOLV=$RESOLVLIB
4123 # These tell us which Kerberos-related libraries to use.
4130 if test "${with_kerberos}" != no; then
4132 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4133 if test $have_com_err = yes; then
4134 COM_ERRLIB=-lcom_err
4135 LIBS="$COM_ERRLIB $LIBS"
4137 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4138 if test $have_crypto = yes; then
4140 LIBS="$CRYPTOLIB $LIBS"
4142 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4143 if test $have_k5crypto = yes; then
4144 CRYPTOLIB=-lk5crypto
4145 LIBS="$CRYPTOLIB $LIBS"
4147 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4148 if test $have_krb5=yes; then
4150 LIBS="$KRB5LIB $LIBS"
4152 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4153 if test "${with_kerberos5}" = no; then
4154 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4155 if test $have_des425 = yes; then
4157 LIBS="$DESLIB $LIBS"
4159 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4160 if test $have_des = yes; then
4162 LIBS="$DESLIB $LIBS"
4165 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4166 if test $have_krb4 = yes; then
4168 LIBS="$KRB4LIB $LIBS"
4170 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4171 if test $have_krb = yes; then
4173 LIBS="$KRB4LIB $LIBS"
4178 if test "${with_kerberos5}" != no; then
4179 AC_CHECK_HEADERS(krb5.h,
4180 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4181 [#include <krb5.h>])])
4183 AC_CHECK_HEADERS(krb.h,,
4184 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4185 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4187 AC_CHECK_HEADERS(com_err.h)
4191 AC_SUBST(COM_ERRLIB)
4197 AC_CHECK_HEADERS(valgrind/valgrind.h)
4199 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4201 AC_CHECK_FUNCS_ONCE([sbrk])
4204 AC_CHECK_FUNC(socket, , ok_so_far=no)
4205 if test $ok_so_far = yes; then
4206 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4208 if test $ok_so_far = yes; then
4209 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4211 if test $ok_so_far = yes; then
4212 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4213 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4214 [Define to 1 if you have inet sockets.])
4219 AC_CHECK_FUNCS(snprintf)
4221 dnl Check for glib. This differs from other library checks in that
4222 dnl Emacs need not link to glib unless some other library is already
4223 dnl linking to glib. Although glib provides no facilities that Emacs
4224 dnl needs for its own purposes, when glib is present Emacs needs to
4225 dnl use primitives like g_main_context_query to avoid clashing with
4226 dnl glib at a low level.
4228 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4232 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4233 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4234 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4235 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4236 AC_MSG_CHECKING([whether GLib is linked in])
4237 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4240 [[g_print ("Hello world");]])],
4243 AC_MSG_RESULT([$links_glib])
4244 if test "${links_glib}" = "yes"; then
4245 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4246 if test "$HAVE_NS" = no;then
4254 dnl Adapted from Haible's version.
4255 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4256 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4257 [[char* cs = nl_langinfo(CODESET);]])],
4258 emacs_cv_langinfo_codeset=yes,
4259 emacs_cv_langinfo_codeset=no)
4261 if test $emacs_cv_langinfo_codeset = yes; then
4262 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4263 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4268 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4269 dnl how the tty code is related to POSIX and/or other versions of termios.
4270 dnl The following looks like a useful start.
4272 dnl AC_SYS_POSIX_TERMIOS
4273 dnl if test $ac_cv_sys_posix_termios = yes; then
4274 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4275 dnl and macros for terminal control.])
4276 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4279 dnl Turned on June 1996 supposing nobody will mind it.
4280 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4281 if test "${opsys}" != "mingw32"; then
4282 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4283 in the full name stands for the login id.])
4286 dnl Everybody supports this, except MS.
4287 dnl Seems like the kind of thing we should be testing for, though.
4288 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4289 if test "${opsys}" != "mingw32"; then
4290 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4293 dnl Everybody supports this, except MS-DOS.
4294 dnl Seems like the kind of thing we should be testing for, though.
4295 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4296 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4297 4.2-compatible sockets.])
4299 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4301 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4302 a null file, or a data sink.])
4303 if test "${opsys}" = "mingw32"; then
4304 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4306 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4309 if test "${opsys}" = "mingw32"; then
4314 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4315 dnl This is for MinGW, and is used in test/Makefile.in.
4316 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4317 dnl decides that a command-line argument to be passed to a MinGW program
4318 dnl is a PATH-style list of directories. But that heuristics plays it
4319 dnl safe, and only does the replacement when it is _absolutely_ sure it
4320 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4321 dnl which breaks in-tree builds. So we do this manually instead.
4322 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4323 dnl be computed as ':' in MSYS Bash.
4326 dnl Everybody supports this, except MS-DOS.
4327 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4329 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4332 AC_DEFINE(DIRECTORY_SEP, ['/'],
4333 [Character that separates directories in a file name.])
4335 if test "${opsys}" = "mingw32"; then
4336 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4337 [Returns true if character is a device separator.])
4339 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4340 [Returns true if character is a directory separator.])
4342 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4343 [Returns true if character is any form of separator.])
4345 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4346 [Returns true if character is a device separator.])
4348 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4349 [Returns true if character is a directory separator.])
4351 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4352 [Returns true if character is any form of separator.])
4355 if test "$USE_X_TOOLKIT" != "none"; then
4359 dnl Assar Westerlund <assar@sics.se> says this is necessary
4360 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4364 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4366 dnl See libXmu.a check above.
4367 if test x$HAVE_X11XTR6 = xyes; then
4368 LIBS="-lXt -lSM -lICE $LIBXMU"
4370 OTHERLIBS="-lXt -$LIBXMU"
4373 [#include <X11/Intrinsic.h>
4374 #include <X11/Xmu/Editres.h>],
4375 [_XEditResCheckMessages (0, 0, 0, 0);],
4376 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4377 [Define to 1 if we should use XEditRes.])])
4384 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4385 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4386 dnl need the constant to dimension an array. So wire in the appropriate
4388 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4392 emacs_broken_SIGIO=no
4395 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4396 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4397 hpux* | nacl | openbsd | sol2* | unixware )
4398 emacs_broken_SIGIO=yes
4402 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4403 dnl the way this system works, libc functions that return malloced
4404 dnl memory use the libc malloc implementation. Calling xfree or
4405 dnl xrealloc on the results of such functions results in a crash.
4407 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4408 dnl but that does not currently work on this system.
4410 dnl It is possible to completely override the malloc implementation on
4411 dnl AIX, but that involves putting the malloc functions in a shared
4412 dnl library and setting the MALLOCTYPE environment variable to point to
4413 dnl that shared library.
4415 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4416 dnl to avoid a crash just use the Emacs implementation for that function.
4418 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4419 dnl of this file, so that we do not check for get_current_dir_name
4420 dnl on AIX. But that might be fragile if something else ends
4421 dnl up testing for get_current_dir_name as a dependency.
4422 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4423 get_current_dir_name should not be used.])
4427 dnl Circumvent a bug in FreeBSD. In the following sequence of
4428 dnl writes/reads on a PTY, read(2) returns bogus data:
4430 dnl write(2) 1022 bytes
4431 dnl write(2) 954 bytes, get EAGAIN
4432 dnl read(2) 1024 bytes in process_read_output
4433 dnl read(2) 11 bytes in process_read_output
4435 dnl That is, read(2) returns more bytes than have ever been written
4436 dnl successfully. The 1033 bytes read are the 1022 bytes written
4437 dnl successfully after processing (for example with CRs added if the
4438 dnl terminal is set up that way which it is here). The same bytes will
4439 dnl be seen again in a later read(2), without the CRs.
4440 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4441 work around an issue when reading from a PTY.])
4447 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4448 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4453 darwin | dragonfly | freebsd | netbsd | openbsd )
4454 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4455 close a pty to make it a controlling terminal (it is already a
4456 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4460 dnl FIXME Surely we can test for this rather than hard-code it.
4462 netbsd | openbsd) sound_device="/dev/audio" ;;
4463 *) sound_device="/dev/dsp" ;;
4467 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4468 [Name of the default sound device.])
4471 dnl Emacs can read input using SIGIO and buffering characters itself,
4472 dnl or using CBREAK mode and making C-g cause SIGINT.
4473 dnl The choice is controlled by the variable interrupt_input.
4475 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4477 dnl Emacs uses the presence of the USABLE_SIGIO macro
4478 dnl to indicate whether or not signal-driven I/O is possible. It uses
4479 dnl INTERRUPT_INPUT to decide whether to use it by default.
4481 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4482 dnl CBREAK mode has two disadvantages
4483 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4484 dnl I hear that in system V this problem does not exist.
4485 dnl 2) Control-G causes output to be discarded.
4486 dnl I do not know whether this can be fixed in system V.
4488 dnl Another method of doing input is planned but not implemented.
4489 dnl It would have Emacs fork off a separate process
4490 dnl to read the input and send it to the true Emacs process
4493 darwin | gnu-linux | gnu-kfreebsd )
4494 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4499 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4500 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4501 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4502 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4503 dnl taking float or double parameters.
4505 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4506 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4507 file defines 'NeedWidePrototypes' as 'NO'.])
4512 dnl Used in process.c, this must be a loop, even if it only runs once.
4513 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4514 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4515 dnl trying suffixes 0-16.
4516 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4517 first PTY, if PTYs are supported.])
4518 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4519 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4520 end of a PTY, if non-standard.])
4521 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4522 end of a PTY, if non-standard.])
4526 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4527 dnl You allocate a pty by opening /dev/ptc to get the master side.
4528 dnl To get the name of the slave side, you just ttyname() the master side.
4529 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4530 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4534 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4535 dnl multi-line AC_DEFINEs are hard. :(
4536 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)])
4537 AC_DEFINE(PTY_NAME_SPRINTF, [])
4538 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4542 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4545 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4547 if test "x$ac_cv_func_grantpt" = xyes; then
4548 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4549 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4550 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4551 dnl to prevent sigchld_handler from intercepting the child's death.
4552 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); }])
4553 dnl if HAVE_POSIX_OPENPT
4554 if test "x$ac_cv_func_posix_openpt" = xyes; then
4555 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4556 AC_DEFINE(PTY_NAME_SPRINTF, [])
4558 elif test "x$ac_cv_func_getpt" = xyes; then
4559 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4560 AC_DEFINE(PTY_NAME_SPRINTF, [])
4562 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4565 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4570 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4571 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4572 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4576 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4577 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4578 dnl from intercepting that death. If any child but grantpt's should die
4579 dnl within, it should be caught after sigrelse(2).
4580 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4581 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); }])
4585 dnl Comments are as per sol2*.
4586 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4587 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); }])
4594 dnl This change means that we don't loop through allocate_pty too
4595 dnl many times in the (rare) event of a failure.
4596 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4597 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4598 dnl Push various streams modules onto a PTY channel. Used in process.c.
4599 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.])
4604 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4605 "typing" a signal character on the pty.])
4608 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4609 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4610 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4613 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4614 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4615 gnu-linux | gnu-kfreebsd )
4617 AC_MSG_CHECKING([for signals via characters])
4618 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4619 #include <linux/version.h>
4620 #if LINUX_VERSION_CODE < 0x20400
4621 # error "Linux version too old"
4623 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4625 AC_MSG_RESULT([$emacs_signals_via_chars])
4626 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4631 AH_TEMPLATE(TAB3, [Undocumented.])
4634 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4636 gnu | dragonfly | freebsd | netbsd | openbsd )
4637 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4638 AC_DEFINE(TAB3, OXTABS)
4641 gnu-linux | gnu-kfreebsd )
4642 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4646 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4647 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4648 [Mark a secondary stack, like the register stack on the ia64.]), [])
4652 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4653 run_time_remap; for HPUX.])
4658 dnl This won't be used automatically yet. We also need to know, at least,
4659 dnl that the stack is continuous.
4660 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4661 registers relevant for conservative garbage collection in the jmp_buf.])
4665 dnl Not all the architectures are tested, but there are Debian packages
4666 dnl for SCM and/or Guile on them, so the technique must work. See also
4667 dnl comments in alloc.c concerning setjmp and gcc.
4668 dnl Fixme: it's probably safe to just use the GCC conditional below.
4669 gnu-linux | gnu-kfreebsd )
4670 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4671 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4672 || defined __alpha__ || defined __mips__ || defined __s390__ \
4673 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4674 || defined __ia64__ || defined __sh__
4677 # error "setjmp not known to work on this arch"
4679 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4684 if test x$GCC = xyes; then
4685 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4686 AC_DEFINE(GC_SETJMP_WORKS, 1)
4689 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4690 AC_DEFINE(GC_SETJMP_WORKS, 1)
4695 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4696 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4699 [[#include <setjmp.h>
4701 # define _longjmp longjmp
4706 _longjmp (j, 1);]])],
4707 [emacs_cv_func__setjmp=yes],
4708 [emacs_cv_func__setjmp=no])])
4709 if test $emacs_cv_func__setjmp = yes; then
4710 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4713 # We need to preserve signal mask to handle C stack overflows.
4714 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4717 [[#include <setjmp.h>
4720 if (! sigsetjmp (j, 1))
4721 siglongjmp (j, 1);]])],
4722 [emacs_cv_func_sigsetjmp=yes],
4723 [emacs_cv_func_sigsetjmp=no])])
4724 if test $emacs_cv_func_sigsetjmp = yes; then
4725 AC_DEFINE([HAVE_SIGSETJMP], 1,
4726 [Define to 1 if sigsetjmp and siglongjmp work.])
4729 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4730 yes,yes,* | *,*,mingw32)
4731 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4732 [Define to 1 if C stack overflow can be handled in some cases.]);;
4737 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4738 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4739 dnl and this is all we need.
4740 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4747 dnl Used in xfaces.c.
4748 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4749 some systems, where it requires time.h.])
4754 dnl Define symbols to identify the version of Unix this is.
4755 dnl Define all the symbols that apply correctly.
4756 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4757 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4758 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4759 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4764 dnl This symbol should be defined on AIX Version 3 ???????
4765 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4767 # error "_AIX not defined"
4769 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4773 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4777 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4778 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4779 dnl distinguish macOS from pure Darwin.
4780 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4783 gnu-linux | gnu-kfreebsd )
4785 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4790 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4794 AC_DEFINE(DOS_NT, [])
4795 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4796 if test "x$ac_enable_checking" != "x" ; then
4797 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4803 AC_DEFINE(USG5_4, [])
4804 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4809 AC_DEFINE(USG5_4, [])
4813 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4816 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4817 emacs_cv_usable_FIONREAD=no
4821 emacs_cv_usable_FIONREAD=yes
4826 [AC_LANG_PROGRAM([[#include <sys/types.h>
4827 #include <sys/ioctl.h>
4829 # include <sys/filio.h>
4832 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4833 [emacs_cv_usable_FIONREAD=yes],
4834 [emacs_cv_usable_FIONREAD=no])
4837 if test $emacs_cv_usable_FIONREAD = yes; then
4838 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4840 if test $emacs_broken_SIGIO = no; then
4841 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4843 [AC_LANG_PROGRAM([[#include <fcntl.h>
4846 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4847 [emacs_cv_usable_SIGIO=yes],
4848 [emacs_cv_usable_SIGIO=no])],
4849 [emacs_cv_usable_SIGIO=yes],
4850 [emacs_cv_usable_SIGIO=no])
4851 if test $emacs_cv_usable_SIGIO = yes; then
4852 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4859 dnl It works to open the pty's tty in the parent (Emacs), then
4860 dnl close and reopen it in the child.
4861 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4862 works to open a pty's tty in the parent process, then close and
4863 reopen it in the child.])
4867 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4872 # Set up the CFLAGS for real compilation, so we can substitute it.
4873 CFLAGS="$REAL_CFLAGS"
4874 CPPFLAGS="$REAL_CPPFLAGS"
4877 ## Hack to detect a buggy GCC version.
4878 if test "$GCC" = yes && \
4879 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4881 *-fno-optimize-sibling-calls*) ;;
4883 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4887 version=$PACKAGE_VERSION
4889 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4890 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4891 [Short copyright string for this version of Emacs.])
4894 ### Specify what sort of things we'll be editing into Makefile and config.h.
4895 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4897 AC_SUBST(configuration)
4902 AC_SUBST(exec_prefix)
4905 AC_SUBST(sharedstatedir)
4906 AC_SUBST(libexecdir)
4910 AC_SUBST(standardlisppath)
4911 AC_SUBST(locallisppath)
4913 AC_SUBST(x_default_search_path)
4915 AC_SUBST(archlibdir)
4921 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4922 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4923 ## end of LIBX_BASE, but nothing ever set it.
4924 AC_SUBST(LD_SWITCH_X_SITE)
4925 AC_SUBST(C_SWITCH_X_SITE)
4926 AC_SUBST(GNUSTEP_CFLAGS)
4928 ## Used in lwlib/Makefile.in.
4929 AC_SUBST(X_TOOLKIT_TYPE)
4931 AC_SUBST(ns_appbindir)
4932 AC_SUBST(ns_appresdir)
4934 AC_SUBST(GNU_OBJC_CFLAGS)
4935 AC_SUBST(OTHER_FILES)
4937 if test -n "${term_header}"; then
4938 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4939 [Define to the header for the built-in window system.])
4942 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4943 [Define to the canonical Emacs configuration name.])
4944 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4945 [Define to the options passed to configure.])
4950 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4951 AC_DEFINE(HAVE_X_WINDOWS, 1,
4952 [Define to 1 if you want to use the X window system.])
4954 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4956 if test "$HAVE_CAIRO" = "yes"; then
4957 FONT_OBJ="ftfont.o ftcrfont.o"
4958 elif test "$HAVE_XFT" = "yes"; then
4959 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4960 elif test "$HAVE_FREETYPE" = "yes"; then
4961 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4971 if test "${USE_X_TOOLKIT}" != "none" ; then
4973 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4974 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4975 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4976 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4977 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4981 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4982 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4986 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4987 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4988 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4992 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4993 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4996 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4999 AC_SUBST(WIDGET_OBJ)
5002 case "$USE_X_TOOLKIT" in
5003 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5004 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5005 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5007 if test "$HAVE_XWIDGETS" = "yes"; then
5008 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5010 AC_SUBST(TOOLKIT_LIBW)
5012 if test "${opsys}" != "mingw32"; then
5013 if test "$USE_X_TOOLKIT" = "none"; then
5014 LIBXT_OTHER="\$(LIBXSM)"
5016 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5019 AC_SUBST(LIBXT_OTHER)
5021 if test "${HAVE_X11}" = "yes" ; then
5022 AC_DEFINE(HAVE_X11, 1,
5023 [Define to 1 if you want to use version 11 of X windows.])
5024 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5028 AC_SUBST(LIBX_OTHER)
5031 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5033 elif test "$USE_X_TOOLKIT" = none; then
5035 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5036 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5038 LIBXMENU='$(lwlibdir)/liblw.a'
5039 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5043 AC_CACHE_CHECK([for struct alignment],
5044 [emacs_cv_struct_alignment],
5046 [AC_LANG_PROGRAM([[#include <stddef.h>
5047 struct __attribute__ ((aligned (8))) s { char c; };
5048 struct t { char c; struct s s; };
5049 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5051 [emacs_cv_struct_alignment=yes],
5052 [emacs_cv_struct_alignment=no])])
5053 if test "$emacs_cv_struct_alignment" = yes; then
5054 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5055 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5056 structure to an N-byte boundary.])
5059 if test "${GNU_MALLOC}" = "yes" ; then
5060 AC_DEFINE(GNU_MALLOC, 1,
5061 [Define to 1 if you want to use the GNU memory allocator.])
5065 if test "${REL_ALLOC}" = "yes" ; then
5066 AC_DEFINE(REL_ALLOC, 1,
5067 [Define REL_ALLOC if you want to use the relocating allocator for
5070 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5072 AC_SUBST(RALLOC_OBJ)
5074 if test "$opsys" = "cygwin"; then
5075 CYGWIN_OBJ="cygw32.o"
5076 ## Cygwin differs because of its unexec().
5078 POST_ALLOC_OBJ=lastfile.o
5079 elif test "$opsys" = "mingw32"; then
5082 POST_ALLOC_OBJ=lastfile.o
5085 PRE_ALLOC_OBJ=lastfile.o
5088 AC_SUBST(CYGWIN_OBJ)
5089 AC_SUBST(PRE_ALLOC_OBJ)
5090 AC_SUBST(POST_ALLOC_OBJ)
5092 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5093 dnl verbatim defined above. The tricky name is apropos, as this hack
5094 dnl makes Fortify go sour!
5095 AH_VERBATIM([FORTIFY_SOUR],
5096 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5097 The workaround disables some useful run-time checking, so it
5098 should be conditional to the platforms with the performance bug.
5099 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5100 #if defined __APPLE__ && defined __GNUC__
5101 # ifndef _DONT_USE_CTYPE_INLINE_
5102 # define _DONT_USE_CTYPE_INLINE_
5104 # ifndef _FORTIFY_SOURCE
5105 # define _FORTIFY_SOURCE 0
5110 # If user asks to omit features, disable optional features that gnulib
5111 # might otherwise enable.
5112 if test "$with_features" = no && test "$enable_acl" != yes; then
5116 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5117 # it temporarily reverts them to their pre-pkg-config values,
5118 # because gnulib needs to work with both src (which uses the
5119 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5120 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5121 # and it therefore needs to run in an environment where LIBS does not
5122 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5123 # for some package unrelated to lib-src.
5126 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5127 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5128 gl_ASSERT_NO_GNULIB_POSIXCHECK
5129 gl_ASSERT_NO_GNULIB_TESTS
5134 if test "${opsys}" = "mingw32"; then
5135 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5136 # Remove unneeded switches from the value of CC that goes to Makefiles
5137 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5141 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5143 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5146 ## The -headerpad option tells ld (see man page) to leave room at the
5147 ## end of the header for adding load commands. Needed for dumping.
5148 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5149 ## architecture (where they are 78 bytes each). The actual number of
5150 ## load commands added is not consistent but normally ranges from
5151 ## about 14 to about 34. Setting it high gets us plenty of slop and
5152 ## only costs about 1.5K of wasted binary space.
5153 headerpad_extra=1000
5154 if test "$HAVE_NS" = "yes"; then
5155 libs_nsgui="-framework AppKit"
5156 if test "$NS_IMPL_COCOA" = "yes"; then
5157 libs_nsgui="$libs_nsgui -framework IOKit"
5162 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5164 ## This is here because src/Makefile.in did some extra fiddling around
5165 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5166 ## LD_SWITCH_SYSTEM_TEMACS instead,
5167 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5168 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5171 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5172 ## find X at run-time.
5173 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5174 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5175 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5176 ## had different values in configure (in ac_link) and src/Makefile.in.
5177 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5178 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5181 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5182 case "$canonical" in
5183 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5184 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5188 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5191 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5192 # Ubuntu, and other systems with "hardened" GCC configurations for
5193 # some reason (Bug#18784). We don't know why this works, but not
5194 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5195 # when trying the option, otherwise clang keeps warning that it does
5196 # not understand it, and pre-4.6 GCC has a similar problem
5197 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5198 # spelling used by GCC 6.1.0 and later (Bug#24682).
5200 [for $CC option to disable position independent executables],
5201 [emacs_cv_prog_cc_no_pie],
5202 [emacs_save_c_werror_flag=$ac_c_werror_flag
5203 emacs_save_LDFLAGS=$LDFLAGS
5204 ac_c_werror_flag=yes
5205 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5206 test $emacs_cv_prog_cc_no_pie = no && break
5207 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5208 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5210 ac_c_werror_flag=$emacs_save_c_werror_flag
5211 LDFLAGS=$emacs_save_LDFLAGS])
5212 if test "$emacs_cv_prog_cc_no_pie" != no; then
5213 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5216 if test x$ac_enable_profiling != x ; then
5218 *freebsd | gnu-linux) ;;
5219 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5223 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5225 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5227 ## Common for all window systems
5228 if test "$window_system" != "none"; then
5229 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5230 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5231 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5234 AC_SUBST(WINDOW_SYSTEM_OBJ)
5236 AH_TOP([/* GNU Emacs site configuration template file.
5238 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5239 Free Software Foundation, Inc.
5241 This file is part of GNU Emacs.
5243 GNU Emacs is free software: you can redistribute it and/or modify
5244 it under the terms of the GNU General Public License as published by
5245 the Free Software Foundation, either version 3 of the License, or (at
5246 your option) any later version.
5248 GNU Emacs is distributed in the hope that it will be useful,
5249 but WITHOUT ANY WARRANTY; without even the implied warranty of
5250 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5251 GNU General Public License for more details.
5253 You should have received a copy of the GNU General Public License
5254 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5257 /* No code in Emacs #includes config.h twice, but some bits of code
5258 intended to work with other packages as well (like gmalloc.c)
5259 think they can include it as many times as they like. */
5260 #ifndef EMACS_CONFIG_H
5261 #define EMACS_CONFIG_H
5264 AH_BOTTOM([#include <conf_post.h>
5266 #endif /* EMACS_CONFIG_H */
5275 #### Report on what we decided to do.
5276 #### Report GTK as a toolkit, even if it doesn't use Xt.
5277 #### It makes printing result more understandable as using GTK sets
5278 #### toolkit_scroll_bars to yes by default.
5279 if test "${HAVE_GTK}" = "yes"; then
5280 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5283 if test $USE_ACL -ne 0; then
5284 ACL_SUMMARY="yes $LIB_ACL"
5289 emacs_standard_dirs='Standard dirs'
5291 Configured for '${canonical}'.
5293 Where should the build process find the source code? ${srcdir}
5294 What compiler should emacs be built with? ${CC} ${CFLAGS}
5295 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5296 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5297 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5298 What window system should Emacs use? ${window_system}
5299 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5300 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5301 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5304 emacs_config_features=
5305 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5306 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5307 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5308 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5311 CANNOT_DUMP) eval val=\${$opt} ;;
5312 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5313 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5314 *) eval val=\${HAVE_$opt} ;;
5317 xno|xnone|x) continue ;;
5322 GTK*|LUCID|MOTIF) opt=$val ;;
5327 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5330 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5331 [Summary of some of the main features enabled by configure.])
5333 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5334 Does Emacs use -lXpm? ${HAVE_XPM}
5335 Does Emacs use -ljpeg? ${HAVE_JPEG}
5336 Does Emacs use -ltiff? ${HAVE_TIFF}
5337 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5338 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5339 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5340 Does Emacs use cairo? ${HAVE_CAIRO}
5341 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5342 Does Emacs support sound? ${HAVE_SOUND}
5343 Does Emacs use -lgpm? ${HAVE_GPM}
5344 Does Emacs use -ldbus? ${HAVE_DBUS}
5345 Does Emacs use -lgconf? ${HAVE_GCONF}
5346 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5347 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5348 Does Emacs use access control lists? ${ACL_SUMMARY}
5349 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5350 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5351 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5352 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5353 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5354 Does Emacs use -lotf? ${HAVE_LIBOTF}
5355 Does Emacs use -lxft? ${HAVE_XFT}
5356 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5357 Does Emacs directly use zlib? ${HAVE_ZLIB}
5358 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5359 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5360 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5361 Does Emacs have threading support in lisp? ${threads_enabled}
5364 if test -n "${EMACSDATA}"; then
5365 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5367 if test -n "${EMACSDOC}"; then
5368 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5373 if test "$HAVE_NS" = "yes"; then
5375 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5376 The installed application will go to nextstep/Emacs.app and can be
5377 run or moved from there."])
5378 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5379 echo "The application will be fully self-contained."
5381 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5382 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5383 to run if these resources are not installed."])
5388 if test "${opsys}" = "cygwin"; then
5390 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5396 # Remove any trailing slashes in these variables.
5398 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5400 case $exec_prefix in
5401 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5404 if test "$HAVE_NS" = "yes"; then
5405 if test "$NS_IMPL_GNUSTEP" = yes; then
5406 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5407 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5408 ns_check_file=Resources/Info-gnustep.plist
5410 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5411 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5412 ns_check_file=Contents/Info.plist
5414 AC_SUBST(ns_check_file)
5417 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5419 dnl config.status treats $srcdir specially, so I think this is ok...
5420 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5422 m4_define([subdir_makefiles],
5423 [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])
5424 SUBDIR_MAKEFILES="subdir_makefiles"
5425 AC_CONFIG_FILES(subdir_makefiles)
5427 dnl test/ is not present in release tarfiles.
5428 opt_makefile=test/Makefile
5430 if test -f "$srcdir/$opt_makefile.in"; then
5431 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5432 dnl Again, it's best not to use a variable. Though you can add
5433 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5434 AC_CONFIG_FILES([test/Makefile])
5438 dnl The admin/ directory used to be excluded from tarfiles.
5439 if test -d $srcdir/admin; then
5440 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5441 AC_CONFIG_FILES([admin/charsets/Makefile])
5442 AC_CONFIG_FILES([admin/unidata/Makefile])
5443 AC_CONFIG_FILES([admin/grammars/Makefile])
5447 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5449 AC_SUBST(SUBDIR_MAKEFILES_IN)
5451 dnl You might wonder (I did) why epaths.h is generated by running make,
5452 dnl rather than just letting configure generate it from epaths.in.
5453 dnl One reason is that the various paths are not fully expanded (see above);
5454 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5455 dnl Secondly, the GNU Coding standards require that one should be able
5456 dnl to run 'make prefix=/some/where/else' and override the values set
5457 dnl by configure. This also explains the 'move-if-change' test and
5458 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5459 AC_CONFIG_COMMANDS([src/epaths.h], [
5460 if test "${opsys}" = "mingw32"; then
5461 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5463 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5464 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5465 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5467 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5468 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5470 AC_CONFIG_COMMANDS([src/.gdbinit], [
5471 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5472 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5476 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5477 dnl See comments for etc-refcards-emacsver.tex.
5478 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5479 dnl it is not quite the same. But we are generating in $srcdir.
5480 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5481 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5482 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5485 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5486 dnl then a directory etc/refcards is created in the build directory,
5487 dnl which is probably harmless, but confusing (in out-of-tree builds).
5488 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5489 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5490 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5491 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5492 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5495 if test $AUTO_DEPEND = yes; then
5496 for dir in $AUTODEPEND_PARENTS; do
5497 AS_MKDIR_P([$dir/deps])
5503 if test ! "$with_mailutils"; then
5504 if test "$with_pop" = yes; then
5505 AC_MSG_WARN([This configuration installs a 'movemail' program
5506 that retrieves POP3 email via only insecure channels.
5507 To omit insecure POP3, you can use '$0 --without-pop'.])
5512 # Don't suggest GNU Mailutils, as it hasn't been ported.
5515 emacs_fix_movemail="use '$0 --with-mailutils'"
5516 case `(movemail --version) 2>/dev/null` in
5518 *) emacs_fix_movemail="install GNU Mailutils
5519 <http://mailutils.org> and $emacs_fix_movemail";;
5521 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5525 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])