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-missing-braces])
990 gl_WARN_ADD([-Wno-tautological-compare])
991 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
994 # This causes too much noise in the MinGW build
995 if test $opsys = mingw32; then
996 gl_WARN_ADD([-Wno-pointer-sign])
999 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
1000 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1001 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1002 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1003 without upsetting glibc 2.15+. */
1004 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1005 && defined __OPTIMIZE__ && __OPTIMIZE__)
1006 # define _FORTIFY_SOURCE 2
1010 # We use a slightly smaller set of warning options for lib/.
1011 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1013 nw="$nw -Wunused-macros"
1015 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1016 AC_SUBST([GNULIB_WARN_CFLAGS])
1026 AC_ARG_ENABLE(link-time-optimization,
1027 [AS_HELP_STRING([--enable-link-time-optimization],
1028 [build emacs with link-time optimization.
1029 This requires GCC 4.5.0 or later, or clang.
1030 (Note that clang support is experimental - see INSTALL.)
1031 It also makes Emacs harder to debug, and when we tried it
1032 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1033 recommended for typical use.])],
1034 if test "${enableval}" != "no"; then
1036 if test $emacs_cv_clang = yes; then
1037 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1038 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1039 if test -x "$GOLD_PLUGIN"; then
1042 elif test x$GCC = xyes; then
1043 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1044 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1045 if test x$CPUS != x; then
1051 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1053 if test -z "$LTO"; then
1057 CFLAGS="$CFLAGS $LTO"
1058 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1059 [ac_lto_supported=yes], [ac_lto_supported=no])
1060 CFLAGS="$old_CFLAGS"
1062 AC_MSG_RESULT([$ac_lto_supported])
1063 if test "$ac_lto_supported" = "yes"; then
1064 CFLAGS="$CFLAGS $LTO"
1065 if test x$emacs_cv_clang = xyes; then
1066 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1067 # WARNING: 'ar --plugin ...' doesn't work without
1068 # command, so plugin name is appended to ARFLAGS.
1069 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1070 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1072 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1073 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1074 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1075 dnl dump core on Fedora 20, so play it safe for now.
1076 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1077 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1083 dnl Automake replacements.
1084 AC_DEFUN([AM_CONDITIONAL],
1088 dnl Prefer silent make output. For verbose output, use
1089 dnl 'configure --disable-silent-rules' or 'make V=1' .
1090 dnl This code is adapted from Automake.
1091 dnl Although it can be simplified now that GNU Make is assumed,
1092 dnl the simplification hasn't been done yet.
1093 AC_ARG_ENABLE([silent-rules],
1095 [--disable-silent-rules],
1096 [verbose build output (undo: "make V=0")])])
1097 if test "$enable_silent_rules" = no; then
1098 AM_DEFAULT_VERBOSITY=1
1100 AM_DEFAULT_VERBOSITY=0
1103 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1105 AC_SUBST([AM_DEFAULT_V])
1106 AC_SUBST([AM_DEFAULT_VERBOSITY])
1108 dnl Some other nice autoconf tests.
1110 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1112 dnl if test "x$RANLIB" = x; then
1117 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1118 dnl can be made to directories. This is not relevant for our usage, and
1119 dnl excludes some cases that work fine for us. Eg MS Windows or files
1120 dnl hosted on AFS, both examples where simple links work, but links to
1121 dnl directories fail. We use a cut-down version instead.
1124 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1125 rm -f conf$$ conf$$.file
1127 LN_S_FILEONLY='cp -p'
1129 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1130 dnl random program in the current directory.
1131 if (echo >conf$$.file) 2>/dev/null; then
1132 if ln -s conf$$.file conf$$ 2>/dev/null; then
1133 if test "$opsys" = "mingw32"; then
1134 LN_S_FILEONLY='/bin/ln -s'
1136 LN_S_FILEONLY='ln -s'
1138 elif ln conf$$.file conf$$ 2>/dev/null; then
1139 if test "$opsys" = "mingw32"; then
1140 LN_S_FILEONLY=/bin/ln
1147 rm -f conf$$ conf$$.file
1149 if test "$LN_S_FILEONLY" = "ln -s"; then
1150 AC_MSG_RESULT([yes])
1152 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1155 AC_SUBST(LN_S_FILEONLY)
1158 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1159 dnl doesn't support links to directories, as in "ln file dir". But that
1160 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1161 dnl executables at "make install" time.
1162 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1163 dnl for more details.
1164 if test "$opsys" = "mingw32"; then
1168 dnl On some Debian versions, "install-info" prints irritating messages
1169 dnl "This is not dpkg install-info anymore, but GNU install-info"
1170 dnl if called via an absolute file name.
1171 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1172 dnl Sadly some people may have an old ginstall-info installed on
1173 dnl non-Debian systems, so we can't use this.
1174 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1175 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1177 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1178 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1179 dnl Don't use GZIP, which is used by gzip for additional parameters.
1180 AC_PATH_PROG(GZIP_PROG, gzip)
1182 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1183 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1185 AC_CACHE_CHECK([for 'find' args to delete a file],
1186 [emacs_cv_find_delete],
1187 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1188 test ! -f conftest.tmp
1189 then emacs_cv_find_delete="-delete"
1190 else emacs_cv_find_delete="-exec rm -f {} ';'"
1192 FIND_DELETE=$emacs_cv_find_delete
1193 AC_SUBST([FIND_DELETE])
1197 if test $opsys = gnu-linux; then
1198 if test "${SETFATTR+set}" != set; then
1199 AC_CACHE_CHECK([for setfattr],
1200 [emacs_cv_prog_setfattr],
1202 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1203 emacs_cv_prog_setfattr=yes
1205 emacs_cv_prog_setfattr=no
1207 if test "$emacs_cv_prog_setfattr" = yes; then
1208 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1214 AC_SUBST([SETFATTR])
1217 case $opsys,$PAXCTL_notdumped in
1218 gnu-linux, | netbsd,)
1219 AC_PATH_PROG([PAXCTL], [paxctl], [],
1220 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1221 if test -n "$PAXCTL"; then
1222 if test "$opsys" = netbsd; then
1223 PAXCTL_dumped='$(PAXCTL) +a'
1224 PAXCTL_notdumped=$PAXCTL_dumped
1226 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1227 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1228 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1229 AC_MSG_RESULT([yes])
1234 if test -n "$PAXCTL"; then
1235 PAXCTL_dumped='$(PAXCTL) -zex'
1236 PAXCTL_notdumped='$(PAXCTL) -r'
1241 AC_SUBST([PAXCTL_dumped])
1242 AC_SUBST([PAXCTL_notdumped])
1244 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1245 if test "${MAKEINFO:=makeinfo}" != "no"; then
1246 case `($MAKEINFO --version) 2>/dev/null` in
1247 *' (GNU texinfo) '4.1[[3-9]]* | \
1248 *' (GNU texinfo) '[[5-9]]* | \
1249 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1254 ## Makeinfo is unusual. For a released Emacs, the manuals are
1255 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1256 ## therefore in the category of "special tools" not normally required, which
1257 ## configure does not have to check for (eg autoconf itself).
1258 ## In a repository checkout on the other hand, the manuals are not included.
1259 ## So makeinfo is a requirement to build from the repository, and configure
1260 ## should test for it as it does for any other build requirement.
1261 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1262 ## with pre-built manuals, from a repository checkout.
1265 if test "$MAKEINFO" = "no"; then
1267 if test "x${with_makeinfo}" = "xno"; then
1269 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1270 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1271 source tree does not seem to have pre-built manuals in the 'info' directory.
1272 Either install a suitable version of makeinfo, or re-run configure
1273 with the '--without-makeinfo' option to build without the manuals.] )
1276 AC_SUBST([MAKEINFO])
1277 AC_SUBST(HAVE_MAKEINFO)
1279 if test $opsys = mingw32; then
1280 DOCMISC_W32=efaq-w32
1284 AC_SUBST(DOCMISC_W32)
1286 dnl Add our options to ac_link now, after it is set up.
1288 if test x$GCC = xyes; then
1289 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1290 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1292 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1293 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1296 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1297 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1298 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1299 dnl if not built to support GNU ld.
1301 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1302 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1303 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1304 dnl Eg "make LDFLAGS=... all" could run into problems,
1305 dnl http://bugs.debian.org/684788
1306 dnl * unnecessary, since temacs is the only thing that actually needs it.
1307 dnl Indeed this is where it was originally, prior to:
1308 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1309 late_LDFLAGS="$LDFLAGS"
1310 if test x$GCC = xyes; then
1311 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1313 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1316 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1318 AC_MSG_CHECKING([for -znocombreloc])
1319 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1320 [AC_MSG_RESULT(yes)],
1321 LDFLAGS_NOCOMBRELOC=
1322 [AC_MSG_RESULT(no)])
1324 LDFLAGS="$late_LDFLAGS"
1326 AC_CACHE_CHECK([whether addresses are sanitized],
1327 [emacs_cv_sanitize_address],
1330 [[#ifndef __has_feature
1331 #define __has_feature(f) 0
1333 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1335 error "Addresses are not sanitized.";
1338 [emacs_cv_sanitize_address=yes],
1339 [emacs_cv_sanitize_address=no])])
1341 dnl The function dump-emacs will not be defined and temacs will do
1342 dnl (load "loadup") automatically unless told otherwise.
1343 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1345 nacl) CANNOT_DUMP=yes ;;
1348 if test "$CANNOT_DUMP" = "yes"; then
1349 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1350 elif test "$emacs_cv_sanitize_address" = yes; then
1351 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1354 AC_SUBST(CANNOT_DUMP)
1357 UNEXEC_OBJ=unexelf.o
1359 # MSDOS uses unexcoff.o
1361 UNEXEC_OBJ=unexaix.o
1367 UNEXEC_OBJ=unexmacosx.o
1370 UNEXEC_OBJ=unexhp9k800.o
1373 UNEXEC_OBJ=unexw32.o
1376 # Use the Solaris dldump() function, called from unexsol.c, to dump
1377 # emacs, instead of the generic ELF dump code found in unexelf.c.
1378 # The resulting binary has a complete symbol table, and is better
1379 # for debugging and other observability tools (debuggers, pstack, etc).
1381 # If you encounter a problem using dldump(), please consider sending
1382 # a message to the OpenSolaris tools-linking mailing list:
1383 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1385 # It is likely that dldump() works with older Solaris too, but this has
1386 # not been tested, so for now this change is for Solaris 10 or newer.
1387 UNEXEC_OBJ=unexsol.o
1390 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1395 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1396 ## The system compiler, GCC, has apparently been modified to not
1397 ## look there, contrary to what a stock GCC would do.
1398 ### It's not our place to do this. See bug#10313#17.
1399 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1404 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1405 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1409 ### It's not our place to do this. See bug#10313#17.
1410 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1415 ## Han Boetes <han@boetes.org> says this is necessary,
1416 ## otherwise Emacs dumps core on elf systems.
1417 LD_SWITCH_SYSTEM="-Z"
1420 AC_SUBST(LD_SWITCH_SYSTEM)
1422 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1424 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1425 ## which has not been defined yet. When this was handled with cpp,
1426 ## it was expanded to null when configure sourced the s/*.h file.
1427 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1428 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1429 ## (or somesuch), but because it is supposed to go at the _front_
1430 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1431 ## Compare with the gnu-linux case below, which added to the end
1432 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1433 ## LD_SWITCH_SYSTEM_TEMACS.
1436 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1443 AC_CHECK_DECL([__ELF__])
1444 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1445 ## With ELF, make sure that all common symbols get allocated to in the
1446 ## data section. Otherwise, the dump of temacs may miss variables in
1447 ## the shared library that have been initialized. For example, with
1448 ## GNU libc, __malloc_initialized would normally be resolved to the
1449 ## shared library's .bss section, which is fatal.
1450 if test "x$GCC" = "xyes"; then
1451 C_SWITCH_MACHINE="-fno-common"
1453 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1456 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1457 dnl albeit under the mistaken assumption that said file
1458 dnl was no longer used.
1459 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1463 AC_SUBST(C_SWITCH_MACHINE)
1465 AC_SUBST(UNEXEC_OBJ)
1468 ## Some programs in src produce warnings saying certain subprograms
1469 ## are too complex and need a MAXMEM value greater than 2000 for
1470 ## additional optimization. --nils@exp-math.uni-essen.de
1471 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1472 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1473 if test "$opsys" = "mingw32"; then
1474 case "$canonical" in
1475 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1476 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1479 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1480 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1481 AC_SUBST(C_SWITCH_SYSTEM)
1486 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1487 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1489 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1491 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1493 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1495 ## Motif needs -lgen.
1496 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1499 AC_SUBST(LIBS_SYSTEM)
1501 ### Make sure subsequent tests use flags consistent with the build flags.
1503 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1504 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1506 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1509 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1510 AC_DEFUN([AC_TYPE_SIZE_T])
1511 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1512 AC_DEFUN([AC_TYPE_UID_T])
1514 # sqrt and other floating-point functions such as fmod and frexp
1515 # are found in -lm on many systems.
1517 AC_SEARCH_LIBS([sqrt], [m])
1518 if test "X$LIBS" = "X$OLD_LIBS"; then
1521 LIB_MATH=$ac_cv_search_sqrt
1525 dnl Current possibilities handled by sed (aix4-2 -> aix,
1526 dnl gnu-linux -> gnu/linux, etc.):
1527 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1528 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1529 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1536 ## Adding -lm confuses the dynamic linker, so omit it.
1539 freebsd | dragonfly )
1540 SYSTEM_TYPE=berkeley-unix
1542 gnu-linux | gnu-kfreebsd )
1544 hpux10-20 | hpux11 )
1548 SYSTEM_TYPE=windows-nt
1550 dnl NB this may be adjusted below.
1552 SYSTEM_TYPE=berkeley-unix
1556 SYSTEM_TYPE=usg-unix-v
1562 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1563 [The type of system you are compiling for; sets 'system-type'.])
1564 AC_SUBST([SYSTEM_TYPE])
1567 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1568 pre_PKG_CONFIG_LIBS=$LIBS
1570 PKG_PROG_PKG_CONFIG(0.9.0)
1572 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1573 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1574 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1575 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1576 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1577 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1579 AC_DEFUN([EMACS_CHECK_MODULES],
1580 [PKG_CHECK_MODULES([$1], [$2],
1581 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1582 m4_default([$3], [HAVE_$1=yes])],
1583 [m4_default([$4], [HAVE_$1=no])])])
1586 if test "${with_sound}" != "no"; then
1587 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1588 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1589 have_sound_header=yes, [], [
1591 #define WIN32_LEAN_AND_MEAN
1592 #include <windows.h>
1595 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1596 AC_MSG_ERROR([OSS sound support requested but not found.])
1598 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1599 # Emulation library used on NetBSD.
1600 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1601 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1602 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1603 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1604 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1608 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1610 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1611 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1612 if test $HAVE_ALSA = yes; then
1613 SAVE_CFLAGS="$CFLAGS"
1615 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1616 LIBS="$ALSA_LIBS $LIBS"
1617 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1618 emacs_alsa_normal=yes,
1619 emacs_alsa_normal=no)
1620 if test "$emacs_alsa_normal" != yes; then
1621 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1622 [[snd_lib_error_set_handler (0);]])],
1623 emacs_alsa_subdir=yes,
1624 emacs_alsa_subdir=no)
1625 if test "$emacs_alsa_subdir" != yes; then
1626 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1628 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1631 CFLAGS="$SAVE_CFLAGS"
1633 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1634 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1635 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1636 elif test "${with_sound}" = "alsa"; then
1637 AC_MSG_ERROR([ALSA sound support requested but not found.])
1639 fi dnl with_sound = alsa|yes
1641 dnl Define HAVE_SOUND if we have sound support. We know it works and
1642 dnl compiles only on the specified platforms. For others, it
1643 dnl probably doesn't make sense to try.
1644 dnl FIXME So surely we should bypass this whole section if not using
1645 dnl one of these platforms?
1646 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1648 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1649 dnl Adjust the --with-sound help text if you change this.
1650 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1651 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1657 AC_SUBST(CFLAGS_SOUND)
1660 dnl checks for header files
1661 AC_CHECK_HEADERS_ONCE(
1668 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1670 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1671 [emacs_cv_personality_addr_no_randomize],
1673 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1674 [[personality (personality (0xffffffff)
1675 | ADDR_NO_RANDOMIZE)]])],
1676 [emacs_cv_personality_addr_no_randomize=yes],
1677 [emacs_cv_personality_addr_no_randomize=no])])
1678 if test $emacs_cv_personality_addr_no_randomize = yes; then
1679 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1680 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1683 # Note that Solaris has sys/sysinfo.h which defines struct
1684 # sysinfo as well. To make sure that we're using GNU/Linux
1685 # sysinfo, we explicitly set one of its fields.
1686 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1687 AC_MSG_CHECKING([if Linux sysinfo may be used])
1688 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1689 [[struct sysinfo si;
1692 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1693 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1694 if test $emacs_cv_linux_sysinfo = yes; then
1695 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1696 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1697 [[struct sysinfo si; return si.mem_unit]])],
1698 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1699 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1703 dnl On Solaris 8 there's a compilation warning for term.h because
1704 dnl it doesn't define 'bool'.
1705 AC_CHECK_HEADERS(term.h, , , -)
1707 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1709 if test $ac_cv_have_decl_sys_siglist != yes; then
1710 # For Tru64, at least:
1711 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1716 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1717 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1718 #if HAVE_SYS_SOCKET_H
1719 #include <sys/socket.h>
1721 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1722 #if HAVE_SYS_SOCKET_H
1723 #include <sys/socket.h>
1725 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1726 #if HAVE_SYS_SOCKET_H
1727 #include <sys/socket.h>
1730 dnl checks for structure members
1731 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1732 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1733 struct ifreq.ifr_addr,
1734 struct ifreq.ifr_addr.sa_len], , ,
1735 [AC_INCLUDES_DEFAULT
1736 #if HAVE_SYS_SOCKET_H
1737 #include <sys/socket.h>
1743 dnl Check for endianness.
1744 dnl AC_C_BIGENDIAN is done by gnulib.
1746 dnl check for Make feature
1749 AUTODEPEND_PARENTS='lib src'
1750 dnl check if we have GCC and autodepend is on.
1751 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1752 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1753 SAVE_CFLAGS="$CFLAGS"
1754 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1755 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1756 CFLAGS="$SAVE_CFLAGS"
1757 test -f deps.d || ac_enable_autodepend=no
1759 AC_MSG_RESULT([$ac_enable_autodepend])
1760 if test $ac_enable_autodepend = yes; then
1764 AC_SUBST(AUTO_DEPEND)
1766 dnl checks for operating system services
1767 AC_SYS_LONG_FILE_NAMES
1769 #### Choose a window system.
1771 ## We leave window_system equal to none if
1772 ## we end up building without one. Any new window system should
1773 ## set window_system to an appropriate value and add objects to
1774 ## window-system-specific substs.
1778 if test "$no_x" != yes; then
1782 LD_SWITCH_X_SITE_RPATH=
1783 if test "${x_libraries}" != NONE; then
1784 if test -n "${x_libraries}"; then
1785 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1786 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1787 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1790 x_default_search_path=""
1791 x_search_path=${x_libraries}
1792 if test -z "${x_search_path}"; then
1793 x_search_path=/usr/lib
1795 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1796 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1798 ${x_library}/X11/%L/%T/%N%C%S:\
1799 ${x_library}/X11/%l/%T/%N%C%S:\
1800 ${x_library}/X11/%T/%N%C%S:\
1801 ${x_library}/X11/%L/%T/%N%S:\
1802 ${x_library}/X11/%l/%T/%N%S:\
1803 ${x_library}/X11/%T/%N%S"
1804 if test x"${x_default_search_path}" = x; then
1805 x_default_search_path=${x_search_path}
1807 x_default_search_path="${x_search_path}:${x_default_search_path}"
1811 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1813 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1814 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1817 if test x"${x_includes}" = x; then
1818 bitmapdir=/usr/include/X11/bitmaps
1820 # accumulate include directories that have X11 bitmap subdirectories
1822 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1823 if test -d "${bmd}/X11/bitmaps"; then
1824 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1826 if test -d "${bmd}/bitmaps"; then
1827 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1830 bitmapdir=${bmd_acc#:}
1833 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1835 NS_GNUSTEP_CONFIG=no
1838 tmp_CPPFLAGS="$CPPFLAGS"
1839 tmp_CFLAGS="$CFLAGS"
1840 CPPFLAGS="$CPPFLAGS -x objective-c"
1841 CFLAGS="$CFLAGS -x objective-c"
1844 if test "${with_ns}" != no; then
1845 if test "${opsys}" = darwin; then
1847 ns_appdir=`pwd`/nextstep/Emacs.app
1848 ns_appbindir=${ns_appdir}/Contents/MacOS
1849 ns_appresdir=${ns_appdir}/Contents/Resources
1850 ns_appsrc=Cocoa/Emacs.base
1851 ns_fontfile=macfont.o
1852 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1854 NS_GNUSTEP_CONFIG=yes
1855 GNU_OBJC_CFLAGS=$flags
1856 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1857 elif test -f $GNUSTEP_CONFIG_FILE; then
1859 dnl FIXME sourcing this several times in subshells seems inefficient.
1860 GNUSTEP_SYSTEM_HEADERS=$(
1861 . $GNUSTEP_CONFIG_FILE
1862 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1864 GNUSTEP_SYSTEM_LIBRARIES=$(
1865 . $GNUSTEP_CONFIG_FILE
1866 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1868 dnl I seemed to need these as well with GNUstep-startup 0.25.
1869 GNUSTEP_LOCAL_HEADERS=$(
1870 . $GNUSTEP_CONFIG_FILE
1871 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1873 GNUSTEP_LOCAL_LIBRARIES=$(
1874 . $GNUSTEP_CONFIG_FILE
1875 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1877 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1878 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1879 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1880 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1881 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1882 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1883 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1884 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1885 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1886 dnl If they had chosen to either define it or not, we could have
1887 dnl just used AC_CHECK_DECL here.
1888 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1889 emacs_cv_objc_exceptions,
1890 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1891 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1895 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1896 if test $emacs_cv_objc_exceptions = yes; then
1897 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1898 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1899 [Define if GNUstep uses ObjC exceptions.])
1900 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1903 if test $NS_IMPL_GNUSTEP = yes; then
1904 ns_appdir=`pwd`/nextstep/Emacs.app
1905 ns_appbindir=${ns_appdir}
1906 ns_appresdir=${ns_appdir}/Resources
1907 ns_appsrc=GNUstep/Emacs.base
1908 ns_fontfile=nsfont.o
1911 dnl This is only used while we test the NS headers, it gets reset below.
1912 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1913 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1915 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1916 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1917 are required for a Nextstep build are missing or cannot be compiled.
1918 Either fix this, or re-configure with the option '--without-ns'.])])
1921 if test "${NS_IMPL_COCOA}" = "yes"; then
1922 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1923 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1925 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1926 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1929 error "Mac OS X 10.6 or newer required";
1933 ns_osx_have_106=yes,
1935 AC_MSG_RESULT([$ns_osx_have_106])
1937 if test $ns_osx_have_106 = no; then
1938 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1943 AC_SUBST(LIBS_GNUSTEP)
1945 INSTALL_ARCH_INDEP_EXTRA=install-etc
1946 ns_self_contained=no
1949 if test "${HAVE_NS}" = yes; then
1950 if test "$with_toolkit_scroll_bars" = "no"; then
1951 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1954 window_system=nextstep
1955 # set up packaging dirs
1956 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1957 ns_self_contained=yes
1958 prefix=${ns_appresdir}
1959 exec_prefix=${ns_appbindir}
1960 dnl This one isn't really used, only archlibdir is.
1961 libexecdir="\${ns_appbindir}/libexec"
1962 archlibdir="\${ns_appbindir}/libexec"
1963 etcdocdir="\${ns_appresdir}/etc"
1964 etcdir="\${ns_appresdir}/etc"
1965 dnl FIXME maybe set datarootdir instead.
1966 dnl That would also get applications, icons, man.
1967 infodir="\${ns_appresdir}/info"
1968 mandir="\${ns_appresdir}/man"
1969 lispdir="\${ns_appresdir}/lisp"
1970 test "$locallisppathset" = no && locallisppath=""
1971 INSTALL_ARCH_INDEP_EXTRA=
1974 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1976 CFLAGS="$tmp_CFLAGS"
1977 CPPFLAGS="$tmp_CPPFLAGS"
1978 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1979 AC_SUBST(ns_self_contained)
1981 AC_SUBST(NS_OBJC_OBJ)
1991 if test "${with_w32}" != no; then
1994 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1995 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1996 cannot be found.])])
1999 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2002 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2007 if test "${opsys}" = "mingw32"; then
2008 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2009 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2010 #include <windows.h>
2011 #include <usp10.h>]],
2012 [[PIMAGE_NT_HEADERS pHeader;
2013 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2014 [emacs_cv_w32api=yes
2017 AC_MSG_RESULT($emacs_cv_w32api)
2018 if test "${emacs_cv_w32api}" = "no"; then
2019 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2030 if test "${HAVE_W32}" = "yes"; then
2031 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2032 if test "$with_toolkit_scroll_bars" = "no"; then
2033 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2035 AC_CHECK_TOOL(WINDRES, [windres],
2036 [AC_MSG_ERROR([No resource compiler found.])])
2037 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2038 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2039 EMACSRES="emacs.res"
2040 case "$canonical" in
2041 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2042 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2044 dnl Construct something of the form "24,4,0,0" with 4 components.
2045 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2047 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2048 AC_SUBST(comma_version)
2049 AC_SUBST(comma_space_version)
2050 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2051 if test "${opsys}" = "cygwin"; then
2052 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2053 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2054 # Tell the linker that emacs.res is an object (which we compile from
2055 # the rc file), not a linker script.
2056 W32_RES_LINK="-Wl,emacs.res"
2058 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2059 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2060 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2061 W32_RES_LINK="\$(EMACSRES)"
2062 CLIENTRES="emacsclient.res"
2063 CLIENTW="emacsclientw\$(EXEEXT)"
2064 FIRSTFILE_OBJ=firstfile.o
2067 LIBS_ECLIENT="-lcomctl32"
2068 LIB_WSOCK32="-lwsock32"
2069 NTLIB="ntlib.$ac_objext"
2070 XARGS_LIMIT="-s 10000"
2076 AC_SUBST(EMACS_MANIFEST)
2079 AC_SUBST(W32_RES_LINK)
2080 AC_SUBST(FIRSTFILE_OBJ)
2083 AC_SUBST(LIBS_ECLIENT)
2084 AC_SUBST(LIB_WSOCK32)
2086 AC_SUBST(XARGS_LIMIT)
2088 if test "${HAVE_W32}" = "yes"; then
2093 ## $window_system is now set to the window system we will
2101 case "${window_system}" in
2106 case "${with_x_toolkit}" in
2107 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2108 motif ) USE_X_TOOLKIT=MOTIF ;;
2110 term_header=gtkutil.h
2111 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2112 dnl USE_X_TOOLKIT is set.
2113 USE_X_TOOLKIT=none ;;
2114 gtk2 ) with_gtk2=yes
2115 term_header=gtkutil.h
2116 USE_X_TOOLKIT=none ;;
2117 gtk3 ) with_gtk3=yes
2118 term_header=gtkutil.h
2119 USE_X_TOOLKIT=none ;;
2120 no ) USE_X_TOOLKIT=none ;;
2121 dnl If user did not say whether to use a toolkit, make this decision later:
2122 dnl use the toolkit if we have gtk, or X11R5 or newer.
2123 * ) USE_X_TOOLKIT=maybe ;;
2127 term_header=nsterm.h
2130 term_header=w32term.h
2134 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2135 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2136 if test "$HAVE_XSERVER" = true ||
2137 test -n "$DISPLAY" ||
2139 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2140 test "$emacs_libX11" != '/usr/lib/libX11.*'
2143 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2144 were found. You should install the relevant development files for X
2145 and for the toolkit you want, such as Gtk+ or Motif. Also make
2146 sure you have development files for image handling, i.e.
2147 tiff, gif, jpeg, png and xpm.
2148 If you are sure you want Emacs compiled without X window support, pass
2154 # Does the opsystem file prohibit the use of the GNU malloc?
2155 # Assume not, until told otherwise.
2159 [whether malloc is Doug Lea style],
2160 [emacs_cv_var_doug_lea_malloc],
2161 [emacs_cv_var_doug_lea_malloc=no
2162 dnl Hooks do not work with address sanitization.
2163 if test "$emacs_cv_sanitize_address" != yes; then
2166 [[#include <malloc.h>
2167 static void hook (void) {}]],
2168 [[malloc_set_state (malloc_get_state ());
2169 __after_morecore_hook = hook;
2170 __malloc_initialize_hook = hook;]])],
2171 [emacs_cv_var_doug_lea_malloc=yes])
2173 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2178 test "$CANNOT_DUMP" = yes ||
2180 ## darwin ld insists on the use of malloc routines in the System framework.
2181 darwin | mingw32 | nacl | sol2-10) ;;
2182 cygwin) hybrid_malloc=yes
2184 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2187 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2188 && test "${UNEXEC_OBJ}" = unexelf.o; then
2194 if test "${system_malloc}" = "yes"; then
2195 AC_DEFINE([SYSTEM_MALLOC], 1,
2196 [Define to 1 to use the system memory allocator, even if it is not
2200 (The GNU allocators don't work with this system configuration.)"
2202 elif test "$hybrid_malloc" = yes; then
2203 AC_DEFINE(HYBRID_MALLOC, 1,
2204 [Define to use gmalloc before dumping and the system malloc after.])
2207 GNU_MALLOC_reason=" (only before dumping)"
2208 GMALLOC_OBJ=gmalloc.o
2211 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2212 VMLIMIT_OBJ=vm-limit.o
2214 AC_CHECK_HEADERS([sys/vlimit.h])
2215 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2218 [[extern char data_start[]; char ch;]],
2219 [[return data_start < &ch;]])],
2220 [emacs_cv_data_start=yes],
2221 [emacs_cv_data_start=no])])
2222 if test $emacs_cv_data_start = yes; then
2223 AC_DEFINE([HAVE_DATA_START], 1,
2224 [Define to 1 if data_start is the address of the start
2225 of the main data segment.])
2228 AC_SUBST([HYBRID_MALLOC])
2229 AC_SUBST(GMALLOC_OBJ)
2230 AC_SUBST(VMLIMIT_OBJ)
2232 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2233 if test "$GNU_MALLOC" = yes ; then
2235 (Using Doug Lea's new malloc from the GNU C Library.)"
2237 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2238 [Define to 1 if the system memory allocator is Doug Lea style,
2239 with malloc hooks and malloc_set_state.])
2241 ## Use mmap directly for allocating larger buffers.
2242 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2243 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2244 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2246 mingw32|gnu*) REL_ALLOC=no ;;
2250 if test x"${REL_ALLOC}" = x; then
2251 REL_ALLOC=${GNU_MALLOC}
2254 use_mmap_for_buffers=no
2256 mingw32) use_mmap_for_buffers=yes ;;
2260 if test $use_mmap_for_buffers = yes; then
2261 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2265 LIBS="$LIBS_SYSTEM $LIBS"
2267 dnl FIXME replace main with a function we actually want from this library.
2268 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2270 dnl Check for the POSIX thread library.
2272 AC_CHECK_HEADERS_ONCE(pthread.h)
2273 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2274 AC_CACHE_CHECK([for pthread library],
2275 [emacs_cv_pthread_lib],
2276 [emacs_cv_pthread_lib=no
2278 for emacs_pthread_lib in 'none needed' -lpthread; do
2279 case $emacs_pthread_lib in
2280 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2284 [[#include <pthread.h>
2286 sigset_t old_mask, new_mask;
2287 void noop (void) {}]],
2288 [[pthread_t th = pthread_self ();
2290 status += pthread_create (&th, 0, 0, 0);
2291 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2292 status += pthread_kill (th, 0);
2293 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2294 || defined DOUG_LEA_MALLOC)
2295 /* Test for pthread_atfork only if gmalloc uses it,
2296 as older-style hosts like MirBSD 10 lack it. */
2297 status += pthread_atfork (noop, noop, noop);
2300 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2302 if test "$emacs_cv_pthread_lib" != no; then
2306 if test "$emacs_cv_pthread_lib" != no; then
2307 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2308 case $emacs_cv_pthread_lib in
2309 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2311 ac_cv_func_pthread_sigmask=yes
2312 # Some systems optimize for single-threaded programs by default, and
2313 # need special flags to disable these optimizations. For example, the
2314 # definition of 'errno' in <errno.h>.
2317 AC_DEFINE([_REENTRANT], 1,
2318 [Define to 1 if your system requires this in multithreaded code.]);;
2320 AC_DEFINE([_THREAD_SAFE], 1,
2321 [Define to 1 if your system requires this in multithreaded code.]);;
2325 AC_SUBST([LIB_PTHREAD])
2327 AC_MSG_CHECKING([for thread support])
2329 if test "$with_threads" = yes; then
2330 if test "$emacs_cv_pthread_lib" != no; then
2331 AC_DEFINE(THREADS_ENABLED, 1,
2332 [Define to 1 if you want elisp thread support.])
2334 elif test "${opsys}" = "mingw32"; then
2335 dnl MinGW can do native Windows threads even without pthreads
2336 AC_DEFINE(THREADS_ENABLED, 1,
2337 [Define to 1 if you want elisp thread support.])
2341 AC_MSG_RESULT([$threads_enabled])
2343 dnl Check for need for bigtoc support on IBM AIX
2347 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2349 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2350 *) gdb_cv_bigtoc=-bbigtoc ;;
2353 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2354 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2359 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2360 # is for the tests that follow. We set them back later on.
2362 REAL_CFLAGS="$CFLAGS"
2363 REAL_CPPFLAGS="$CPPFLAGS"
2366 if test "${HAVE_X11}" = "yes"; then
2367 DEFS="$C_SWITCH_X_SITE $DEFS"
2368 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2370 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2371 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2373 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2374 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2375 # but it's more convenient here to set LD_RUN_PATH since this
2376 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2377 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2378 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2382 if test "${opsys}" = "gnu-linux"; then
2383 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2384 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2385 [[XOpenDisplay ("foo");]])],
2386 [xgnu_linux_first_failure=no],
2387 [xgnu_linux_first_failure=yes])
2388 if test "${xgnu_linux_first_failure}" = "yes"; then
2389 OLD_CPPFLAGS="$CPPFLAGS"
2391 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2392 LIBS="$LIBS -b i486-linuxaout"
2393 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2394 [[XOpenDisplay ("foo");]])],
2395 [xgnu_linux_second_failure=no],
2396 [xgnu_linux_second_failure=yes])
2397 if test "${xgnu_linux_second_failure}" = "yes"; then
2398 # If we get the same failure with -b, there is no use adding -b.
2399 # So leave it out. This plays safe.
2402 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2403 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2406 CPPFLAGS=$OLD_CPPFLAGS
2413 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2414 # header files included from there.
2415 AC_MSG_CHECKING(for Xkb)
2416 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2417 #include <X11/XKBlib.h>]],
2418 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2419 emacs_xkb=yes, emacs_xkb=no)
2420 AC_MSG_RESULT($emacs_xkb)
2421 if test $emacs_xkb = yes; then
2422 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2425 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2426 XScreenNumberOfScreen)
2429 if test "${window_system}" = "x11"; then
2430 AC_MSG_CHECKING(X11 version 6)
2431 AC_CACHE_VAL(emacs_cv_x11_version_6,
2432 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2433 [[#if XlibSpecificationRelease < 6
2436 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2437 if test $emacs_cv_x11_version_6 = yes; then
2438 AC_MSG_RESULT(6 or newer)
2439 AC_DEFINE(HAVE_X11R6, 1,
2440 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2441 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2442 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2446 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2447 [Define if you have usable X11R6-style XIM support.])
2451 AC_MSG_RESULT(before 6)
2456 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2458 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2459 if test "${with_rsvg}" != "no"; then
2460 RSVG_REQUIRED=2.11.0
2461 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2463 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2464 AC_SUBST(RSVG_CFLAGS)
2467 if test $HAVE_RSVG = yes; then
2468 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2469 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2470 # Windows loads librsvg dynamically
2471 if test "${opsys}" = "mingw32"; then
2479 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2480 if test "${with_imagemagick}" != "no"; then
2481 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2482 ## 6.8.2 makes Emacs crash; see Bug#13867.
2483 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2484 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2485 AC_SUBST(IMAGEMAGICK_CFLAGS)
2486 AC_SUBST(IMAGEMAGICK_LIBS)
2488 if test $HAVE_IMAGEMAGICK = yes; then
2489 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2492 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2493 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2494 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2501 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2502 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2503 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2504 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2505 GETADDRINFO_A_LIBS="-lanl"
2506 AC_SUBST(GETADDRINFO_A_LIBS)
2511 gtk_term_header=$term_header
2514 if test "${opsys}" != "mingw32"; then
2515 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2518 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2520 dnl Checks for libraries.
2521 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2522 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2523 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2524 AC_MSG_ERROR($GTK_PKG_ERRORS)
2526 if test "$pkg_check_gtk" = "yes"; then
2527 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2528 GTK_OBJ=emacsgtkfixed.o
2529 gtk_term_header=gtkutil.h
2530 USE_GTK_TOOLKIT="GTK3"
2531 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2532 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2533 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2534 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2535 [Define to 1 to disable Glib deprecation warnings.])
2539 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2543 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2546 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2548 dnl Checks for libraries.
2549 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2550 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2551 if test "$pkg_check_gtk" = "no" &&
2552 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2554 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2556 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2563 if test x"$pkg_check_gtk" = xyes; then
2566 CFLAGS="$CFLAGS $GTK_CFLAGS"
2567 LIBS="$GTK_LIBS $LIBS"
2568 dnl Try to compile a simple GTK program.
2569 AC_MSG_CHECKING([whether GTK compiles])
2573 [[/* Check the Gtk and Glib APIs. */
2574 #include <gtk/gtk.h>
2575 #include <glib-object.h>
2577 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2581 GtkSettings *gs = 0;
2582 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2583 strict C prohibits this. Use gtk_main_iteration to test that the
2584 libraries are there. */
2585 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2586 0, 0, 0, G_CALLBACK (callback), 0))
2587 gtk_main_iteration ();
2590 AC_MSG_RESULT([$GTK_COMPILES])
2591 if test "${GTK_COMPILES}" != "yes"; then
2593 if test "$USE_X_TOOLKIT" != "maybe"; then
2594 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2597 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2599 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2600 GTK_OBJ="gtkutil.o $GTK_OBJ"
2601 term_header=$gtk_term_header
2603 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2604 closing open displays. This is no problem if you just use
2605 one display, but if you use more than one and close one of them
2607 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2615 if test "${HAVE_GTK}" = "yes"; then
2617 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2618 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2619 if test "$with_toolkit_scroll_bars" != no; then
2620 with_toolkit_scroll_bars=yes
2623 dnl Check if we have the old file selection dialog declared and
2624 dnl in the link library. In 2.x it may be in the library,
2625 dnl but not declared if deprecated featured has been selected out.
2626 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2627 HAVE_GTK_FILE_SELECTION=no
2628 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2629 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2630 #include <gtk/gtk.h>])
2631 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2632 AC_CHECK_FUNCS(gtk_file_selection_new)
2635 dnl Same as above for gtk_handle_box.
2636 HAVE_GTK_HANDLE_BOX=no
2637 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2638 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2639 #include <gtk/gtk.h>])
2640 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2641 AC_CHECK_FUNCS(gtk_handle_box_new)
2644 dnl Same as above for gtk_tearoff_menu_item.
2645 HAVE_GTK_TEAROFF_MENU_ITEM=no
2646 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2647 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2648 #include <gtk/gtk.h>])
2649 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2650 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2653 dnl Check for functions introduced in 2.14 and later.
2654 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2655 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2656 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2657 gtk_orientable_set_orientation \
2658 gtk_window_set_has_resize_grip)
2660 term_header=gtkutil.h
2664 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2667 if test "$with_xwidgets" != "no"; then
2668 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2669 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2671 WEBKIT_REQUIRED=2.12
2672 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2673 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2674 HAVE_XWIDGETS=$HAVE_WEBKIT
2675 test $HAVE_XWIDGETS = yes ||
2676 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2678 XWIDGETS_OBJ=xwidget.o
2679 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2681 AC_SUBST(XWIDGETS_OBJ)
2686 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2687 dnl other platforms.
2690 if test "${with_dbus}" = "yes"; then
2691 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2692 if test "$HAVE_DBUS" = yes; then
2693 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2694 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2695 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2698 LIBS="$LIBS $DBUS_LIBS"
2699 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2700 dbus_type_is_valid \
2701 dbus_validate_bus_name \
2702 dbus_validate_path \
2703 dbus_validate_interface \
2704 dbus_validate_member)
2709 AC_SUBST(DBUS_CFLAGS)
2713 dnl GSettings has been tested under GNU/Linux only.
2715 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2716 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2717 if test "$HAVE_GSETTINGS" = "yes"; then
2719 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2721 LIBS="$LIBS $GSETTINGS_LIBS"
2722 AC_MSG_CHECKING([whether GSettings is in gio])
2725 [[/* Check that gsettings really is present. */
2726 #include <glib-object.h>
2727 #include <gio/gio.h>
2730 GSettings *settings;
2731 GVariant *val = g_settings_get_value (settings, "");
2733 [], HAVE_GSETTINGS=no)
2734 AC_MSG_RESULT([$HAVE_GSETTINGS])
2736 if test "$HAVE_GSETTINGS" = "yes"; then
2737 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2738 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2739 SETTINGS_LIBS="$GSETTINGS_LIBS"
2746 dnl GConf has been tested under GNU/Linux only.
2747 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2749 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2750 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2751 if test "$HAVE_GCONF" = yes; then
2752 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2753 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2754 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2755 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2759 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2760 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2761 if test "$HAVE_GOBJECT" = "yes"; then
2762 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2763 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2765 SAVE_CFLAGS="$CFLAGS"
2767 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2768 LIBS="$SETTINGS_LIBS $LIBS"
2769 CFLAGS="$SAVE_CFLAGS"
2772 AC_SUBST(SETTINGS_CFLAGS)
2773 AC_SUBST(SETTINGS_LIBS)
2776 dnl SELinux is available for GNU/Linux only.
2779 if test "${with_selinux}" = "yes"; then
2780 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2781 if test "$HAVE_LIBSELINUX" = yes; then
2782 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2783 LIBSELINUX_LIBS=-lselinux
2786 AC_SUBST(LIBSELINUX_LIBS)
2789 if test "${with_gnutls}" = "yes" ; then
2790 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2791 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2792 if test "${HAVE_GNUTLS}" = "yes"; then
2793 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2794 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2795 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2798 # Windows loads GnuTLS dynamically
2799 if test "${opsys}" = "mingw32"; then
2804 AC_SUBST(LIBGNUTLS_LIBS)
2805 AC_SUBST(LIBGNUTLS_CFLAGS)
2808 if test "${with_libsystemd}" = "yes" ; then
2809 dnl This code has been tested with libsystemd 222 and later.
2810 dnl FIXME: Find the earliest version number for which Emacs should work,
2811 dnl and change '222' to that number.
2812 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2813 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2814 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2815 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2819 AC_SUBST(LIBSYSTEMD_LIBS)
2820 AC_SUBST(LIBSYSTEMD_CFLAGS)
2825 dnl MS Windows native file monitor is available for mingw32 only.
2826 case $with_file_notification,$opsys in
2828 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2829 this is only supported on MS-Windows native and MinGW32 builds.
2830 Consider using gfile instead.])
2832 w32,* | yes,mingw32)
2833 AC_CHECK_HEADER(windows.h)
2834 if test "$ac_cv_header_windows_h" = yes ; then
2835 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2836 NOTIFY_OBJ=w32notify.o
2837 NOTIFY_SUMMARY="yes (w32)"
2841 dnl inotify is available only on GNU/Linux.
2842 case $with_file_notification,$NOTIFY_OBJ in
2844 AC_CHECK_HEADER(sys/inotify.h)
2845 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2846 AC_CHECK_FUNC(inotify_init1)
2847 if test "$ac_cv_func_inotify_init1" = yes; then
2848 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2849 NOTIFY_OBJ=inotify.o
2850 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2855 dnl kqueue is available on BSD-like systems.
2856 case $with_file_notification,$NOTIFY_OBJ in
2858 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2859 if test "$HAVE_KQUEUE" = "yes"; then
2860 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2861 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2862 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2863 NOTIFY_LIBS=$KQUEUE_LIBS
2865 NOTIFY_SUMMARY="yes -lkqueue"
2867 AC_SEARCH_LIBS(kqueue, [])
2868 if test "$ac_cv_search_kqueue" != no; then
2869 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2871 NOTIFY_SUMMARY="yes (kqueue)"
2876 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2877 dnl has been added in glib 2.24. It has been tested under
2879 case $with_file_notification,$NOTIFY_OBJ in
2881 if test "${HAVE_NS}" = yes; then
2882 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2883 Consider kqueue instead.])
2885 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2886 if test "$HAVE_GFILENOTIFY" = "yes"; then
2887 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2888 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2889 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2890 NOTIFY_OBJ=gfilenotify.o
2891 NOTIFY_SUMMARY="yes -lgio (gfile)"
2896 case $with_file_notification,$NOTIFY_OBJ in
2897 yes,* | no,* | *,?*) ;;
2898 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2901 if test -n "$NOTIFY_OBJ"; then
2902 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2904 AC_SUBST(NOTIFY_CFLAGS)
2905 AC_SUBST(NOTIFY_LIBS)
2906 AC_SUBST(NOTIFY_OBJ)
2908 dnl Do not put whitespace before the #include statements below.
2909 dnl Older compilers (eg sunos4 cc) choke on it.
2912 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2913 if test "$with_xaw3d" != no; then
2914 AC_CACHE_VAL(emacs_cv_xaw3d,
2915 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2916 #include <X11/Intrinsic.h>
2917 #include <X11/Xaw3d/Simple.h>]],
2919 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2920 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2921 emacs_cv_xaw3d=no)])
2925 if test $emacs_cv_xaw3d = yes; then
2926 AC_MSG_CHECKING(for xaw3d)
2927 AC_MSG_RESULT([yes; using Lucid toolkit])
2931 AC_DEFINE(HAVE_XAW3D, 1,
2932 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2934 AC_MSG_CHECKING(for xaw3d)
2936 AC_MSG_CHECKING(for libXaw)
2937 AC_CACHE_VAL(emacs_cv_xaw,
2938 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2939 #include <X11/Intrinsic.h>
2940 #include <X11/Xaw/Simple.h>]],
2944 if test $emacs_cv_xaw = yes; then
2945 AC_MSG_RESULT([yes; using Lucid toolkit])
2948 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2949 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2951 AC_MSG_ERROR([No X toolkit could be found.
2952 If you are sure you want Emacs compiled without an X toolkit, pass
2954 to configure. Otherwise, install the development libraries for the toolkit
2955 that you want to use (e.g. Gtk+) and re-run configure.])
2960 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2964 if test "${USE_X_TOOLKIT}" != "none"; then
2965 AC_MSG_CHECKING(X11 toolkit version)
2966 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2967 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2968 [[#if XtSpecificationRelease < 6
2971 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2972 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2973 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2974 AC_MSG_RESULT(6 or newer)
2975 AC_DEFINE(HAVE_X11XTR6, 1,
2976 [Define to 1 if you have the X11R6 or newer version of Xt.])
2977 LIBXTR6="-lSM -lICE"
2979 ## Use libw.a along with X11R6 Xt.
2980 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2983 AC_MSG_RESULT(before 6)
2986 dnl If using toolkit, check whether libXmu.a exists.
2987 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2989 if test x$HAVE_X11XTR6 = xyes; then
2990 OTHERLIBS='-lXt -lSM -lICE'
2994 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2995 if test "X$LIBS" != "X$OLDLIBS"; then
2996 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2999 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3005 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3006 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3007 if test -d /usr/include/openmotif; then
3008 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3009 emacs_cv_openmotif=yes
3010 case "$canonical" in
3011 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3012 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3015 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3018 emacs_cv_openmotif=no
3020 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3021 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3022 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3025 Motif version prior to 2.1.
3027 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3028 if test $emacs_cv_motif_version_2_1 = yes; then
3029 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3030 if test x$emacs_cv_openmotif = xyes; then
3031 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3034 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3035 # We put this in CFLAGS temporarily to precede other -I options
3036 # that might be in CFLAGS temporarily.
3037 # We put this in CPPFLAGS where it precedes the other -I options.
3038 OLD_CPPFLAGS=$CPPFLAGS
3040 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3041 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3042 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3044 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3045 if test $emacs_cv_lesstif = yes; then
3046 # Make sure this -I option remains in CPPFLAGS after it is set
3047 # back to REAL_CPPFLAGS.
3048 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3049 # have those other -I options anyway. Ultimately, having this
3050 # directory ultimately in CPPFLAGS will be enough.
3051 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3052 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3055 CPPFLAGS=$OLD_CPPFLAGS
3058 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3059 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3062 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3063 dnl using Motif or Xaw3d is available, and unless
3064 dnl --with-toolkit-scroll-bars=no was specified.
3066 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3067 [Define to 1 if we should use toolkit scroll bars.])dnl
3068 USE_TOOLKIT_SCROLL_BARS=no
3069 if test "${with_toolkit_scroll_bars}" != "no"; then
3070 if test "${USE_X_TOOLKIT}" != "none"; then
3071 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3072 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3074 USE_TOOLKIT_SCROLL_BARS=yes
3075 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3076 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3077 USE_TOOLKIT_SCROLL_BARS=yes
3079 elif test "${HAVE_GTK}" = "yes"; then
3080 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3081 USE_TOOLKIT_SCROLL_BARS=yes
3082 elif test "${HAVE_NS}" = "yes"; then
3083 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3084 USE_TOOLKIT_SCROLL_BARS=yes
3085 elif test "${HAVE_W32}" = "yes"; then
3086 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3087 USE_TOOLKIT_SCROLL_BARS=yes
3091 dnl See if XIM is available.
3092 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3093 #include <X11/Xlib.h>
3094 #include <X11/Xresource.h>]],
3095 [[XIMProc callback;]])],
3097 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3100 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3102 if test "${with_xim}" != "no"; then
3103 AC_DEFINE(USE_XIM, 1,
3104 [Define to 1 if we should use XIM, if it is available.])
3108 if test "${HAVE_XIM}" != "no"; then
3110 if test "$GCC" = yes; then
3111 CFLAGS="$CFLAGS --pedantic-errors"
3113 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3114 #include <X11/Xlib.h>
3115 #include <X11/Xresource.h>]],
3121 XPointer *client_data;
3123 /* If we're not using GCC, it's probably not XFree86, and this is
3124 probably right, but we can't use something like --pedantic-errors. */
3125 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3126 char*, XIMProc, XPointer*);
3128 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3130 [emacs_cv_arg6_star=yes])
3131 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3132 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3133 either XPointer or XPointer*.])dnl
3134 if test "$emacs_cv_arg6_star" = yes; then
3135 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3137 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3142 ### Start of font-backend (under any platform) section.
3143 # (nothing here yet -- this is a placeholder)
3144 ### End of font-backend (under any platform) section.
3146 ### Start of font-backend (under X11) section.
3147 if test "${HAVE_X11}" = "yes"; then
3148 ## Use -lXft if available, unless '--with-xft=no'.
3150 if test "x${with_x}" = "xno"; then
3154 if test "$with_xft" != no; then
3155 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3156 with_xft=$HAVE_FONTCONFIG
3159 if test "x${with_xft}" != "xno"; then
3161 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3162 ## Because xftfont.c uses XRenderQueryExtension, we also
3163 ## need to link to -lXrender.
3165 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3166 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3167 OLD_CPPFLAGS="$CPPFLAGS"
3168 OLD_CFLAGS="$CFLAGS"
3170 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3171 CFLAGS="$CFLAGS $XFT_CFLAGS"
3172 XFT_LIBS="-lXrender $XFT_LIBS"
3173 LIBS="$XFT_LIBS $LIBS"
3174 AC_CHECK_HEADER(X11/Xft/Xft.h,
3175 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3176 [[#include <X11/X.h>]])
3178 if test "${HAVE_XFT}" = "yes"; then
3179 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3181 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3182 fi # "${HAVE_XFT}" = "yes"
3183 CPPFLAGS=$OLD_CPPFLAGS
3186 fi # "$HAVE_XFT" != no
3187 fi # "x${with_xft}" != "xno"
3189 ## We used to allow building with FreeType and without Xft.
3190 ## However, the ftx font backend driver is not in good shape.
3191 if test "$HAVE_XFT" != "yes"; then
3192 dnl For the "Does Emacs use" message at the end.
3196 dnl Strict linkers fail with
3197 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3198 dnl if -lfreetype is not specified.
3199 dnl The following is needed to set FREETYPE_LIBS.
3200 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3202 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3206 if test "${HAVE_FREETYPE}" = "yes"; then
3207 AC_DEFINE(HAVE_FREETYPE, 1,
3208 [Define to 1 if using the freetype and fontconfig libraries.])
3209 if test "${with_libotf}" != "no"; then
3210 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3211 if test "$HAVE_LIBOTF" = "yes"; then
3212 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3213 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3214 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3215 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3216 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3217 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3218 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3222 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3223 dnl Does the new font backend require it, or can it work without it?
3227 if test "${HAVE_LIBOTF}" = yes; then
3228 if test "${with_m17n_flt}" != "no"; then
3229 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3230 if test "$HAVE_M17N_FLT" = "yes"; then
3231 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3242 ### End of font-backend (under X11) section.
3244 AC_SUBST(FREETYPE_CFLAGS)
3245 AC_SUBST(FREETYPE_LIBS)
3246 AC_SUBST(FONTCONFIG_CFLAGS)
3247 AC_SUBST(FONTCONFIG_LIBS)
3248 AC_SUBST(LIBOTF_CFLAGS)
3249 AC_SUBST(LIBOTF_LIBS)
3250 AC_SUBST(M17N_FLT_CFLAGS)
3251 AC_SUBST(M17N_FLT_LIBS)
3254 if test "${HAVE_X11}" = "yes"; then
3255 if test "${with_cairo}" != "no"; then
3256 CAIRO_REQUIRED=1.12.0
3257 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3258 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3259 if test $HAVE_CAIRO = yes; then
3260 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3262 AC_MSG_ERROR([cairo requested but not found.])
3265 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3266 LIBS="$LIBS $CAIRO_LIBS"
3267 AC_SUBST(CAIRO_CFLAGS)
3268 AC_SUBST(CAIRO_LIBS)
3272 if test "${HAVE_X11}" = "yes"; then
3273 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3274 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3275 if test "${HAVE_XCB}" = "yes"; then
3276 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3277 if test "${HAVE_X11_XCB}" = "yes"; then
3278 AC_DEFINE(USE_XCB, 1,
3279 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3280 X11/XCB programming.])
3281 XCB_LIBS="-lX11-xcb -lxcb"
3287 ### Use -lXpm if available, unless '--with-xpm=no'.
3288 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3289 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3290 ### we need to set LDFLAGS accordingly.
3293 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3294 if test "${with_xpm}" != "no"; then
3295 SAVE_LDFLAGS="$LDFLAGS"
3296 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3297 AC_CHECK_HEADER(noX/xpm.h,
3298 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3299 if test "${HAVE_XPM}" = "yes"; then
3300 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3301 AC_EGREP_CPP(no_return_alloc_pixels,
3302 [#include "noX/xpm.h"
3303 #ifndef XpmReturnAllocPixels
3304 no_return_alloc_pixels
3306 ], HAVE_XPM=no, HAVE_XPM=yes)
3308 if test "${HAVE_XPM}" = "yes"; then
3312 LDFLAGS="$SAVE_LDFLAGS"
3317 if test "${HAVE_XPM}" = "yes"; then
3318 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3323 if test "${HAVE_X11}" = "yes"; then
3324 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3325 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3327 if test "${with_xpm}" != "no"; then
3328 AC_CHECK_HEADER(X11/xpm.h,
3329 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3330 if test "${HAVE_XPM}" = "yes"; then
3331 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3332 AC_EGREP_CPP(no_return_alloc_pixels,
3333 [#include "X11/xpm.h"
3334 #ifndef XpmReturnAllocPixels
3335 no_return_alloc_pixels
3337 ], HAVE_XPM=no, HAVE_XPM=yes)
3339 if test "${HAVE_XPM}" = "yes"; then
3347 if test "${HAVE_XPM}" = "yes"; then
3348 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3350 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3351 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3356 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3357 ### slightly different requirements wrt image libraries (it doesn't
3358 ### use -lXpm because it loads the xpm shared library dynamically at
3360 if test "${opsys}" = "mingw32"; then
3361 if test "${with_xpm}" != "no"; then
3362 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3366 if test "${HAVE_XPM}" = "yes"; then
3367 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3373 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3376 if test "${with_jpeg}" != "no"; then
3377 AC_CACHE_CHECK([for jpeglib 6b or later],
3380 for emacs_cv_jpeglib in yes -ljpeg no; do
3381 case $emacs_cv_jpeglib in
3384 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3388 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3389 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3390 #include <jpeglib.h>
3392 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3393 struct jpeg_decompress_struct cinfo;
3396 jpeg_create_decompress (&cinfo);
3397 WARNMS (&cinfo, JWRN_JPEG_EOF);
3398 jpeg_destroy_decompress (&cinfo);
3400 [emacs_link_ok=yes],
3403 test $emacs_link_ok = yes && break
3405 if test "$emacs_cv_jpeglib" != no; then
3407 AC_DEFINE([HAVE_JPEG], 1,
3408 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3409 ### mingw32 doesn't use -ljpeg, since it loads the library
3410 ### dynamically when needed, and doesn't want a run-time
3411 ### dependency on the jpeglib DLL.
3412 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3413 && LIBJPEG=$emacs_cv_jpeglib
3420 if test "${with_zlib}" != "no"; then
3422 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3424 case $ac_cv_search_inflateEnd in
3425 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3428 if test "${HAVE_ZLIB}" = "yes"; then
3429 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3430 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3431 if test "${opsys}" = "mingw32"; then
3437 ### Dynamic modules support
3442 if test "${with_modules}" != "no"; then
3446 MODULES_SUFFIX=".so"
3450 MODULES_SUFFIX=".dll"
3454 MODULES_SUFFIX=".so"
3458 # BSD systems have dlopen in libc.
3459 AC_CHECK_FUNC([dlopen],
3460 [MODULES_SUFFIX=".so"
3465 if test "${HAVE_MODULES}" = no; then
3466 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3469 LIBS="$LIBS $LIBMODULES"
3470 AC_CHECK_FUNCS([dladdr dlfunc])
3475 if test "${HAVE_MODULES}" = yes; then
3476 MODULES_OBJ="dynlib.o emacs-module.o"
3477 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3478 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3479 [System extension for dynamic libraries])
3481 AC_SUBST(MODULES_OBJ)
3482 AC_SUBST(LIBMODULES)
3483 AC_SUBST(HAVE_MODULES)
3484 AC_SUBST(MODULES_SUFFIX)
3486 ### Use -lpng if available, unless '--with-png=no'.
3490 if test "${NS_IMPL_COCOA}" = yes; then
3492 elif test "${with_png}" != no; then
3493 # mingw32 loads the library dynamically.
3494 if test "$opsys" = mingw32; then
3495 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3496 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3497 AC_MSG_CHECKING([for png])
3498 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3499 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3500 # libpng-config does not work; configure by hand.
3501 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3502 # in /usr/include/libpng.
3503 if test -r /usr/include/libpng/png.h &&
3504 test ! -r /usr/include/png.h; then
3505 png_cflags=-I/usr/include/libpng
3513 CFLAGS="$CFLAGS $png_cflags"
3514 LIBS="$png_ldflags -lz -lm $LIBS"
3516 [AC_LANG_PROGRAM([[#include <png.h>]],
3517 [[return !png_get_channels (0, 0);]])],
3519 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3521 # $LIBPNG requires explicit -lz in some cases.
3522 # We don't know what those cases are, exactly, so play it safe and
3523 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3524 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3525 LIBPNG="$LIBPNG -lz"
3529 AC_MSG_RESULT([$HAVE_PNG])
3532 if test $HAVE_PNG = yes; then
3533 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3536 CFLAGS="$CFLAGS $PNG_CFLAGS"
3537 AC_CHECK_DECL([png_longjmp],
3539 [AC_DEFINE([PNG_DEPSTRUCT], [],
3540 [Define to empty to suppress deprecation warnings when building
3541 with --enable-gcc-warnings and with libpng versions before 1.5,
3542 which lack png_longjmp.])],
3548 AC_SUBST(PNG_CFLAGS)
3550 ### Use -ltiff if available, unless '--with-tiff=no'.
3551 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3554 if test "${opsys}" = "mingw32"; then
3555 if test "${with_tiff}" != "no"; then
3556 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3558 if test "${HAVE_TIFF}" = "yes"; then
3559 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3561 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3562 if test "${with_tiff}" != "no"; then
3563 AC_CHECK_HEADER(tiffio.h,
3565 # At least one tiff package requires the jpeg library.
3566 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3567 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3570 if test "${HAVE_TIFF}" = "yes"; then
3571 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3572 dnl FIXME -lz -lm, as per libpng?
3578 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3579 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3582 if test "${opsys}" = "mingw32"; then
3583 if test "${with_gif}" != "no"; then
3584 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3586 if test "${HAVE_GIF}" = "yes"; then
3587 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3589 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3590 || test "${HAVE_W32}" = "yes"; then
3591 AC_CHECK_HEADER(gif_lib.h,
3592 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3593 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3594 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3595 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3597 if test "$HAVE_GIF" = yes; then
3599 elif test "$HAVE_GIF" = maybe; then
3600 # If gif_lib.h but no libgif, try libungif.
3601 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3602 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3605 if test "${HAVE_GIF}" = "yes"; then
3606 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3611 dnl Check for required libraries.
3614 if test "${HAVE_X11}" = "yes"; then
3615 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3616 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3617 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3618 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3619 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3620 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3621 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3622 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3623 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3624 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3626 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3627 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3628 if test "X${MISSING}" != X; then
3629 AC_MSG_ERROR([The following required libraries were not found:
3631 Maybe some development libraries/packages are missing?
3632 If you don't want to link with them give
3634 as options to configure])
3637 ### Use -lgpm if available, unless '--with-gpm=no'.
3640 if test "${with_gpm}" != "no"; then
3641 AC_CHECK_HEADER(gpm.h,
3642 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3644 if test "${HAVE_GPM}" = "yes"; then
3645 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3651 dnl Check for malloc/malloc.h on darwin
3652 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3655 ### Use NeXTstep API to implement GUI.
3656 if test "${HAVE_NS}" = "yes"; then
3657 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3658 if test "${NS_IMPL_COCOA}" = "yes"; then
3659 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3661 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3662 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3663 if test $NS_GNUSTEP_CONFIG != yes; then
3664 # See also .m.o rule in src/Makefile.in. */
3665 # FIXME: are all these flags really needed? Document here why. */
3666 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3667 ## Extra CFLAGS applied to src/*.m files.
3668 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3674 ### Use session management (-lSM -lICE) if available
3677 if test "${HAVE_X11}" = "yes"; then
3678 AC_CHECK_HEADER(X11/SM/SMlib.h,
3679 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3681 if test "${HAVE_X_SM}" = "yes"; then
3682 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3688 ### Use XRandr (-lXrandr) if available
3690 if test "${HAVE_X11}" = "yes"; then
3691 XRANDR_REQUIRED=1.2.2
3692 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3693 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3694 if test $HAVE_XRANDR = no; then
3695 # Test old way in case pkg-config doesn't have it (older machines).
3696 # Include Xrender.h by hand to work around bug in older Xrandr.h
3697 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3698 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3699 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3700 [], [AC_INCLUDES_DEFAULT
3701 #include <X11/extensions/Xrender.h>])
3702 if test $HAVE_XRANDR = yes; then
3703 XRANDR_LIBS=-lXrandr
3706 if test $HAVE_XRANDR = yes; then
3707 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3710 AC_SUBST(XRANDR_CFLAGS)
3711 AC_SUBST(XRANDR_LIBS)
3713 ### Use Xinerama (-lXinerama) if available
3715 if test "${HAVE_X11}" = "yes"; then
3716 XINERAMA_REQUIRED=1.0.2
3717 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3718 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3719 if test $HAVE_XINERAMA = no; then
3720 # Test old way in case pkg-config doesn't have it (older machines).
3721 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3722 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3723 if test $HAVE_XINERAMA = yes; then
3724 XINERAMA_LIBS=-lXinerama
3727 if test $HAVE_XINERAMA = yes; then
3728 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3731 AC_SUBST(XINERAMA_CFLAGS)
3732 AC_SUBST(XINERAMA_LIBS)
3734 ### Use Xfixes (-lXfixes) if available
3736 if test "${HAVE_X11}" = "yes"; then
3737 XFIXES_REQUIRED=4.0.0
3738 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3739 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3740 if test $HAVE_XFIXES = no; then
3741 # Test old way in case pkg-config doesn't have it (older machines).
3742 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3743 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3744 if test $HAVE_XFIXES = yes; then
3745 XFIXES_LIBS=-lXfixes
3748 if test $HAVE_XFIXES = yes; then
3749 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3752 AC_SUBST(XFIXES_CFLAGS)
3753 AC_SUBST(XFIXES_LIBS)
3755 ### Use Xdbe (-lXdbe) if available
3757 if test "${HAVE_X11}" = "yes"; then
3758 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3759 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3761 [#include <X11/Xlib.h>
3763 if test $HAVE_XDBE = yes; then
3766 if test $HAVE_XDBE = yes; then
3767 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3770 AC_SUBST(XDBE_CFLAGS)
3773 ### Use libxml (-lxml2) if available
3774 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3776 if test "${with_xml2}" != "no"; then
3777 ### I'm not sure what the version number should be, so I just guessed.
3778 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3779 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3780 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3781 SAVE_CPPFLAGS="$CPPFLAGS"
3782 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3783 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3784 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3786 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3790 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3791 AC_CHECK_HEADER(libxml/HTMLparser.h,
3792 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3793 [#include <libxml/HTMLparser.h>])])
3794 CPPFLAGS="$SAVE_CPPFLAGS"
3795 if test "${HAVE_LIBXML2}" = "yes"; then
3796 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3797 LIBXML2_LIBS="-lxml2"
3800 if test "${HAVE_LIBXML2}" = "yes"; then
3801 if test "${opsys}" != "mingw32"; then
3802 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3807 if test "${HAVE_LIBXML2}" = "yes"; then
3808 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3815 AC_SUBST(LIBXML2_LIBS)
3816 AC_SUBST(LIBXML2_CFLAGS)
3820 if test ! "$with_mailutils"; then
3821 # Check for mail-locking functions in a "mail" library. Probably this should
3822 # have the same check as for liblockfile below.
3823 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3824 if test $have_mail = yes; then
3826 AC_DEFINE([HAVE_LIBMAIL], [1],
3827 [Define to 1 if you have the 'mail' library (-lmail).])
3830 LIBS="$LIBS_MAIL $LIBS"
3831 AC_CHECK_FUNCS([touchlock])
3834 dnl Debian, at least:
3835 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3836 if test $have_lockfile = yes; then
3837 LIBS_MAIL=-llockfile
3838 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3839 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3841 # If we have the shared liblockfile, assume we must use it for mail
3842 # locking (e.g. Debian). If we couldn't link against liblockfile
3843 # (no liblockfile.a installed), ensure that we don't need to.
3844 dnl This works for files generally, not just executables.
3845 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3846 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3847 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3848 if test "$ac_cv_prog_liblockfile" = yes; then
3849 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3850 This probably means that movemail could lose mail.
3851 There may be a 'development' package to install containing liblockfile.])
3854 AC_CHECK_HEADERS([maillock.h])
3856 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3857 ## interlock access to the mail spool. The alternative is a lock file named
3858 ## /usr/spool/mail/$USER.lock.
3861 aix4-2) mail_lock="lockf" ;;
3863 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3865 ## On GNU/Linux systems, both methods are used by various mail programs.
3866 ## I assume most people are using newer mailers that have heard of flock.
3867 ## Change this if you need to.
3868 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3869 ## configure gets the right answers, and that means *NOT* using flock.
3870 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3871 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3872 ## Debian maintainer hasn't provided a clean fix for Emacs.
3873 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3874 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3875 ## correct logic. -- fx
3876 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3877 ## liblockfile is a Free Software replacement for libmail, used on
3878 ## Debian systems and elsewhere. -rfr.
3881 if test $have_mail = yes || test $have_lockfile = yes; then
3882 test $ac_cv_header_maillock_h = yes && mail_lock=no
3886 mail_lock="none-needed" ;;
3890 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3891 [Define if the mailer uses flock to interlock the mail spool.]);;
3893 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3894 [Define if the mailer uses lockf to interlock the mail spool.]);;
3898 *) BLESSMAIL_TARGET="need-blessmail" ;;
3901 AC_SUBST([BLESSMAIL_TARGET])
3902 AC_SUBST([LIBS_MAIL])
3905 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3906 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3907 getrusage get_current_dir_name \
3908 lrand48 random rint trunc \
3909 select getpagesize setlocale newlocale \
3910 getrlimit setrlimit shutdown \
3911 pthread_sigmask strsignal setitimer \
3912 sendto recvfrom getsockname getifaddrs freeifaddrs \
3914 getpwent endpwent getgrent endgrent \
3915 cfmakeraw cfsetspeed __executable_start log2 prctl)
3918 dnl No need to check for posix_memalign if aligned_alloc works.
3919 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3920 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3922 dnl Cannot use AC_CHECK_FUNCS
3923 AC_CACHE_CHECK([for __builtin_unwind_init],
3924 emacs_cv_func___builtin_unwind_init,
3925 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3926 emacs_cv_func___builtin_unwind_init=yes,
3927 emacs_cv_func___builtin_unwind_init=no)])
3928 if test $emacs_cv_func___builtin_unwind_init = yes; then
3929 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3930 [Define to 1 if you have the '__builtin_unwind_init' function.])
3933 AC_CHECK_HEADERS_ONCE(sys/un.h)
3938 AC_CHECK_FUNCS(grantpt)
3940 # PTY-related GNU extensions.
3941 AC_CHECK_FUNCS(getpt posix_openpt)
3943 # Check this now, so that we will NOT find the above functions in ncurses.
3944 # That is because we have not set up to link ncurses in lib-src.
3945 # It's better to believe a function is not available
3946 # than to expect to find it in ncurses.
3947 # Also we need tputs and friends to be able to build at all.
3948 AC_MSG_CHECKING([for library containing tputs])
3949 # Run a test program that contains a call to tputs, a call that is
3950 # never executed. This tests whether a pre-'main' dynamic linker
3951 # works with the library. It's too much trouble to actually call
3952 # tputs in the test program, due to portability hassles. When
3953 # cross-compiling, assume the test program will run if it links.
3954 AC_DEFUN([tputs_link_source], [
3956 [[extern void tputs (const char *, int, int (*)(int));
3957 int main (int argc, char **argv)
3960 tputs (argv[0], 0, 0);
3964 if test "${opsys}" = "mingw32"; then
3967 # Maybe curses should be tried earlier?
3968 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3969 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3971 if test -z "$tputs_library"; then
3975 LIBS_TERMCAP=-l$tputs_library
3977 LIBS="$LIBS_TERMCAP $LIBS"
3979 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3980 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3982 if test "X$msg" != Xno; then
3987 AC_MSG_RESULT([$msg])
3988 if test "X$msg" = Xno; then
3989 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3990 The following libraries were tried (in order):
3991 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3992 Please try installing whichever of these libraries is most appropriate
3993 for your system, together with its header files.
3994 For example, a libncurses-dev(el) or similar package.])
3997 ## Use termcap instead of terminfo?
3998 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
4000 ## FIXME? In the cases below where we unconditionally set
4001 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4002 ## if that was found above to have tputs.
4003 ## Should we use the gnu* logic everywhere?
4005 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4006 ## The ncurses library has been moved out of the System framework in
4007 ## Mac OS X 10.2. So if configure detects it, set the command-line
4008 ## option to use it.
4009 darwin) LIBS_TERMCAP="-lncurses" ;;
4011 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4014 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4015 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4016 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4017 [[#if __FreeBSD_version < 400000
4020 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4022 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4024 if test $emacs_cv_freebsd_terminfo = yes; then
4025 LIBS_TERMCAP="-lncurses"
4028 LIBS_TERMCAP="-ltermcap"
4038 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4040 LIBS_TERMCAP="-ltermcap"
4044 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4046 ## hpux: Make sure we get select from libc rather than from libcurses
4047 ## because libcurses on HPUX 10.10 has a broken version of select.
4048 ## We used to use -lc -lcurses, but this may be cleaner.
4049 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4050 # set that way, now it uses the default). Isn't this a contradiction?
4051 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4055 TERMCAP_OBJ=tparam.o
4056 if test $TERMINFO = yes; then
4057 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4058 TERMCAP_OBJ=terminfo.o
4060 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4061 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4063 AC_SUBST(LIBS_TERMCAP)
4064 AC_SUBST(TERMCAP_OBJ)
4066 # GNU/Linux-specific timer functions.
4067 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4069 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4071 [[timerfd_create (CLOCK_REALTIME,
4072 TFD_CLOEXEC | TFD_NONBLOCK);
4073 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4074 [emacs_cv_have_timerfd=yes],
4075 [emacs_cv_have_timerfd=no])])
4076 if test "$emacs_cv_have_timerfd" = yes; then
4077 AC_DEFINE([HAVE_TIMERFD], 1,
4078 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4081 # Alternate stack for signal handlers.
4082 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4083 [emacs_cv_alternate_stack],
4085 [AC_LANG_PROGRAM([[#include <signal.h>
4088 struct sigaction sa;
4089 ss.ss_sp = malloc (SIGSTKSZ);
4090 ss.ss_size = SIGSTKSZ;
4091 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4092 sigaltstack (&ss, 0);
4093 sigaction (SIGSEGV, &sa, 0);]])],
4094 [emacs_cv_alternate_stack=yes],
4095 [emacs_cv_alternate_stack=no])])
4097 # Do we need the Hesiod library to provide the support routines?
4098 dnl FIXME? Should we be skipping this on Darwin too?
4101 if test "$with_hesiod" != no ; then
4102 # Don't set $LIBS here -- see comments above. FIXME which comments?
4104 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4105 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4106 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4107 if test "$resolv" = yes ; then
4113 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4114 hesiod=yes, :, $RESOLVLIB)])
4116 if test x"$hesiod" = xyes; then
4118 LIBRESOLV=$RESOLVLIB
4124 # These tell us which Kerberos-related libraries to use.
4131 if test "${with_kerberos}" != no; then
4133 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4134 if test $have_com_err = yes; then
4135 COM_ERRLIB=-lcom_err
4136 LIBS="$COM_ERRLIB $LIBS"
4138 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4139 if test $have_crypto = yes; then
4141 LIBS="$CRYPTOLIB $LIBS"
4143 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4144 if test $have_k5crypto = yes; then
4145 CRYPTOLIB=-lk5crypto
4146 LIBS="$CRYPTOLIB $LIBS"
4148 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4149 if test $have_krb5=yes; then
4151 LIBS="$KRB5LIB $LIBS"
4153 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4154 if test "${with_kerberos5}" = no; then
4155 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4156 if test $have_des425 = yes; then
4158 LIBS="$DESLIB $LIBS"
4160 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4161 if test $have_des = yes; then
4163 LIBS="$DESLIB $LIBS"
4166 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4167 if test $have_krb4 = yes; then
4169 LIBS="$KRB4LIB $LIBS"
4171 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4172 if test $have_krb = yes; then
4174 LIBS="$KRB4LIB $LIBS"
4179 if test "${with_kerberos5}" != no; then
4180 AC_CHECK_HEADERS(krb5.h,
4181 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4182 [#include <krb5.h>])])
4184 AC_CHECK_HEADERS(krb.h,,
4185 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4186 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4188 AC_CHECK_HEADERS(com_err.h)
4192 AC_SUBST(COM_ERRLIB)
4198 AC_CHECK_HEADERS(valgrind/valgrind.h)
4200 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4202 AC_CHECK_FUNCS_ONCE([sbrk])
4205 AC_CHECK_FUNC(socket, , ok_so_far=no)
4206 if test $ok_so_far = yes; then
4207 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4209 if test $ok_so_far = yes; then
4210 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4212 if test $ok_so_far = yes; then
4213 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4214 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4215 [Define to 1 if you have inet sockets.])
4220 AC_CHECK_FUNCS(snprintf)
4222 dnl Check for glib. This differs from other library checks in that
4223 dnl Emacs need not link to glib unless some other library is already
4224 dnl linking to glib. Although glib provides no facilities that Emacs
4225 dnl needs for its own purposes, when glib is present Emacs needs to
4226 dnl use primitives like g_main_context_query to avoid clashing with
4227 dnl glib at a low level.
4229 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4233 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4234 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4235 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4236 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4237 AC_MSG_CHECKING([whether GLib is linked in])
4238 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4241 [[g_print ("Hello world");]])],
4244 AC_MSG_RESULT([$links_glib])
4245 if test "${links_glib}" = "yes"; then
4246 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4247 if test "$HAVE_NS" = no;then
4255 dnl Adapted from Haible's version.
4256 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4257 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4258 [[char* cs = nl_langinfo(CODESET);]])],
4259 emacs_cv_langinfo_codeset=yes,
4260 emacs_cv_langinfo_codeset=no)
4262 if test $emacs_cv_langinfo_codeset = yes; then
4263 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4264 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4269 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4270 dnl how the tty code is related to POSIX and/or other versions of termios.
4271 dnl The following looks like a useful start.
4273 dnl AC_SYS_POSIX_TERMIOS
4274 dnl if test $ac_cv_sys_posix_termios = yes; then
4275 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4276 dnl and macros for terminal control.])
4277 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4280 dnl Turned on June 1996 supposing nobody will mind it.
4281 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4282 if test "${opsys}" != "mingw32"; then
4283 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4284 in the full name stands for the login id.])
4287 dnl Everybody supports this, except MS.
4288 dnl Seems like the kind of thing we should be testing for, though.
4289 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4290 if test "${opsys}" != "mingw32"; then
4291 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4294 dnl Everybody supports this, except MS-DOS.
4295 dnl Seems like the kind of thing we should be testing for, though.
4296 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4297 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4298 4.2-compatible sockets.])
4300 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4302 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4303 a null file, or a data sink.])
4304 if test "${opsys}" = "mingw32"; then
4305 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4307 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4310 if test "${opsys}" = "mingw32"; then
4315 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4316 dnl This is for MinGW, and is used in test/Makefile.in.
4317 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4318 dnl decides that a command-line argument to be passed to a MinGW program
4319 dnl is a PATH-style list of directories. But that heuristics plays it
4320 dnl safe, and only does the replacement when it is _absolutely_ sure it
4321 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4322 dnl which breaks in-tree builds. So we do this manually instead.
4323 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4324 dnl be computed as ':' in MSYS Bash.
4327 dnl Everybody supports this, except MS-DOS.
4328 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4330 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4333 AC_DEFINE(DIRECTORY_SEP, ['/'],
4334 [Character that separates directories in a file name.])
4336 if test "${opsys}" = "mingw32"; then
4337 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4338 [Returns true if character is a device separator.])
4340 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4341 [Returns true if character is a directory separator.])
4343 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4344 [Returns true if character is any form of separator.])
4346 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4347 [Returns true if character is a device separator.])
4349 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4350 [Returns true if character is a directory separator.])
4352 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4353 [Returns true if character is any form of separator.])
4356 if test "$USE_X_TOOLKIT" != "none"; then
4360 dnl Assar Westerlund <assar@sics.se> says this is necessary
4361 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4365 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4367 dnl See libXmu.a check above.
4368 if test x$HAVE_X11XTR6 = xyes; then
4369 LIBS="-lXt -lSM -lICE $LIBXMU"
4371 OTHERLIBS="-lXt -$LIBXMU"
4374 [#include <X11/Intrinsic.h>
4375 #include <X11/Xmu/Editres.h>],
4376 [_XEditResCheckMessages (0, 0, 0, 0);],
4377 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4378 [Define to 1 if we should use XEditRes.])])
4385 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4386 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4387 dnl need the constant to dimension an array. So wire in the appropriate
4389 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4393 emacs_broken_SIGIO=no
4396 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4397 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4398 hpux* | nacl | openbsd | sol2* | unixware )
4399 emacs_broken_SIGIO=yes
4403 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4404 dnl the way this system works, libc functions that return malloced
4405 dnl memory use the libc malloc implementation. Calling xfree or
4406 dnl xrealloc on the results of such functions results in a crash.
4408 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4409 dnl but that does not currently work on this system.
4411 dnl It is possible to completely override the malloc implementation on
4412 dnl AIX, but that involves putting the malloc functions in a shared
4413 dnl library and setting the MALLOCTYPE environment variable to point to
4414 dnl that shared library.
4416 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4417 dnl to avoid a crash just use the Emacs implementation for that function.
4419 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4420 dnl of this file, so that we do not check for get_current_dir_name
4421 dnl on AIX. But that might be fragile if something else ends
4422 dnl up testing for get_current_dir_name as a dependency.
4423 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4424 get_current_dir_name should not be used.])
4428 dnl Circumvent a bug in FreeBSD. In the following sequence of
4429 dnl writes/reads on a PTY, read(2) returns bogus data:
4431 dnl write(2) 1022 bytes
4432 dnl write(2) 954 bytes, get EAGAIN
4433 dnl read(2) 1024 bytes in process_read_output
4434 dnl read(2) 11 bytes in process_read_output
4436 dnl That is, read(2) returns more bytes than have ever been written
4437 dnl successfully. The 1033 bytes read are the 1022 bytes written
4438 dnl successfully after processing (for example with CRs added if the
4439 dnl terminal is set up that way which it is here). The same bytes will
4440 dnl be seen again in a later read(2), without the CRs.
4441 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4442 work around an issue when reading from a PTY.])
4448 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4449 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4454 darwin | dragonfly | freebsd | netbsd | openbsd )
4455 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4456 close a pty to make it a controlling terminal (it is already a
4457 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4461 dnl FIXME Surely we can test for this rather than hard-code it.
4463 netbsd | openbsd) sound_device="/dev/audio" ;;
4464 *) sound_device="/dev/dsp" ;;
4468 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4469 [Name of the default sound device.])
4472 dnl Emacs can read input using SIGIO and buffering characters itself,
4473 dnl or using CBREAK mode and making C-g cause SIGINT.
4474 dnl The choice is controlled by the variable interrupt_input.
4476 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4478 dnl Emacs uses the presence of the USABLE_SIGIO macro
4479 dnl to indicate whether or not signal-driven I/O is possible. It uses
4480 dnl INTERRUPT_INPUT to decide whether to use it by default.
4482 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4483 dnl CBREAK mode has two disadvantages
4484 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4485 dnl I hear that in system V this problem does not exist.
4486 dnl 2) Control-G causes output to be discarded.
4487 dnl I do not know whether this can be fixed in system V.
4489 dnl Another method of doing input is planned but not implemented.
4490 dnl It would have Emacs fork off a separate process
4491 dnl to read the input and send it to the true Emacs process
4494 darwin | gnu-linux | gnu-kfreebsd )
4495 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4500 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4501 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4502 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4503 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4504 dnl taking float or double parameters.
4506 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4507 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4508 file defines 'NeedWidePrototypes' as 'NO'.])
4513 dnl Used in process.c, this must be a loop, even if it only runs once.
4514 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4515 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4516 dnl trying suffixes 0-16.
4517 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4518 first PTY, if PTYs are supported.])
4519 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4520 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4521 end of a PTY, if non-standard.])
4522 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4523 end of a PTY, if non-standard.])
4527 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4528 dnl You allocate a pty by opening /dev/ptc to get the master side.
4529 dnl To get the name of the slave side, you just ttyname() the master side.
4530 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4531 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4535 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4536 dnl multi-line AC_DEFINEs are hard. :(
4537 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)])
4538 AC_DEFINE(PTY_NAME_SPRINTF, [])
4539 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4543 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4546 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4548 if test "x$ac_cv_func_grantpt" = xyes; then
4549 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4550 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4551 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4552 dnl to prevent sigchld_handler from intercepting the child's death.
4553 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); }])
4554 dnl if HAVE_POSIX_OPENPT
4555 if test "x$ac_cv_func_posix_openpt" = xyes; then
4556 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4557 AC_DEFINE(PTY_NAME_SPRINTF, [])
4559 elif test "x$ac_cv_func_getpt" = xyes; then
4560 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4561 AC_DEFINE(PTY_NAME_SPRINTF, [])
4563 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4566 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4571 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4572 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4573 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4577 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4578 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4579 dnl from intercepting that death. If any child but grantpt's should die
4580 dnl within, it should be caught after sigrelse(2).
4581 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4582 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); }])
4586 dnl Comments are as per sol2*.
4587 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4588 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); }])
4595 dnl This change means that we don't loop through allocate_pty too
4596 dnl many times in the (rare) event of a failure.
4597 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4598 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4599 dnl Push various streams modules onto a PTY channel. Used in process.c.
4600 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.])
4605 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4606 "typing" a signal character on the pty.])
4609 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4610 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4611 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4614 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4615 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4616 gnu-linux | gnu-kfreebsd )
4618 AC_MSG_CHECKING([for signals via characters])
4619 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4620 #include <linux/version.h>
4621 #if LINUX_VERSION_CODE < 0x20400
4622 # error "Linux version too old"
4624 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4626 AC_MSG_RESULT([$emacs_signals_via_chars])
4627 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4632 AH_TEMPLATE(TAB3, [Undocumented.])
4635 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4637 gnu | dragonfly | freebsd | netbsd | openbsd )
4638 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4639 AC_DEFINE(TAB3, OXTABS)
4642 gnu-linux | gnu-kfreebsd )
4643 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4647 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4648 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4649 [Mark a secondary stack, like the register stack on the ia64.]), [])
4653 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4654 run_time_remap; for HPUX.])
4659 dnl This won't be used automatically yet. We also need to know, at least,
4660 dnl that the stack is continuous.
4661 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4662 registers relevant for conservative garbage collection in the jmp_buf.])
4666 dnl Not all the architectures are tested, but there are Debian packages
4667 dnl for SCM and/or Guile on them, so the technique must work. See also
4668 dnl comments in alloc.c concerning setjmp and gcc.
4669 dnl Fixme: it's probably safe to just use the GCC conditional below.
4670 gnu-linux | gnu-kfreebsd )
4671 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4672 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4673 || defined __alpha__ || defined __mips__ || defined __s390__ \
4674 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4675 || defined __ia64__ || defined __sh__
4678 # error "setjmp not known to work on this arch"
4680 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4685 if test x$GCC = xyes; then
4686 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4687 AC_DEFINE(GC_SETJMP_WORKS, 1)
4690 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4691 AC_DEFINE(GC_SETJMP_WORKS, 1)
4696 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4697 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4700 [[#include <setjmp.h>
4702 # define _longjmp longjmp
4707 _longjmp (j, 1);]])],
4708 [emacs_cv_func__setjmp=yes],
4709 [emacs_cv_func__setjmp=no])])
4710 if test $emacs_cv_func__setjmp = yes; then
4711 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4714 # We need to preserve signal mask to handle C stack overflows.
4715 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4718 [[#include <setjmp.h>
4721 if (! sigsetjmp (j, 1))
4722 siglongjmp (j, 1);]])],
4723 [emacs_cv_func_sigsetjmp=yes],
4724 [emacs_cv_func_sigsetjmp=no])])
4725 if test $emacs_cv_func_sigsetjmp = yes; then
4726 AC_DEFINE([HAVE_SIGSETJMP], 1,
4727 [Define to 1 if sigsetjmp and siglongjmp work.])
4730 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4731 yes,yes,* | *,*,mingw32)
4732 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4733 [Define to 1 if C stack overflow can be handled in some cases.]);;
4738 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4739 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4740 dnl and this is all we need.
4741 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4748 dnl Used in xfaces.c.
4749 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4750 some systems, where it requires time.h.])
4755 dnl Define symbols to identify the version of Unix this is.
4756 dnl Define all the symbols that apply correctly.
4757 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4758 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4759 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4760 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4765 dnl This symbol should be defined on AIX Version 3 ???????
4766 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4768 # error "_AIX not defined"
4770 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4774 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4778 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4779 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4780 dnl distinguish macOS from pure Darwin.
4781 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4784 gnu-linux | gnu-kfreebsd )
4786 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4791 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4795 AC_DEFINE(DOS_NT, [])
4796 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4797 if test "x$ac_enable_checking" != "x" ; then
4798 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4804 AC_DEFINE(USG5_4, [])
4805 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4810 AC_DEFINE(USG5_4, [])
4814 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4817 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4818 emacs_cv_usable_FIONREAD=no
4822 emacs_cv_usable_FIONREAD=yes
4827 [AC_LANG_PROGRAM([[#include <sys/types.h>
4828 #include <sys/ioctl.h>
4830 # include <sys/filio.h>
4833 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4834 [emacs_cv_usable_FIONREAD=yes],
4835 [emacs_cv_usable_FIONREAD=no])
4838 if test $emacs_cv_usable_FIONREAD = yes; then
4839 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4841 if test $emacs_broken_SIGIO = no; then
4842 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4844 [AC_LANG_PROGRAM([[#include <fcntl.h>
4847 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4848 [emacs_cv_usable_SIGIO=yes],
4849 [emacs_cv_usable_SIGIO=no])],
4850 [emacs_cv_usable_SIGIO=yes],
4851 [emacs_cv_usable_SIGIO=no])
4852 if test $emacs_cv_usable_SIGIO = yes; then
4853 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4860 dnl It works to open the pty's tty in the parent (Emacs), then
4861 dnl close and reopen it in the child.
4862 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4863 works to open a pty's tty in the parent process, then close and
4864 reopen it in the child.])
4868 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4873 # Set up the CFLAGS for real compilation, so we can substitute it.
4874 CFLAGS="$REAL_CFLAGS"
4875 CPPFLAGS="$REAL_CPPFLAGS"
4878 ## Hack to detect a buggy GCC version.
4879 if test "$GCC" = yes && \
4880 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4882 *-fno-optimize-sibling-calls*) ;;
4884 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4888 version=$PACKAGE_VERSION
4890 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4891 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4892 [Short copyright string for this version of Emacs.])
4895 ### Specify what sort of things we'll be editing into Makefile and config.h.
4896 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4898 AC_SUBST(configuration)
4903 AC_SUBST(exec_prefix)
4906 AC_SUBST(sharedstatedir)
4907 AC_SUBST(libexecdir)
4911 AC_SUBST(standardlisppath)
4912 AC_SUBST(locallisppath)
4914 AC_SUBST(x_default_search_path)
4916 AC_SUBST(archlibdir)
4922 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4923 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4924 ## end of LIBX_BASE, but nothing ever set it.
4925 AC_SUBST(LD_SWITCH_X_SITE)
4926 AC_SUBST(C_SWITCH_X_SITE)
4927 AC_SUBST(GNUSTEP_CFLAGS)
4929 ## Used in lwlib/Makefile.in.
4930 AC_SUBST(X_TOOLKIT_TYPE)
4932 AC_SUBST(ns_appbindir)
4933 AC_SUBST(ns_appresdir)
4935 AC_SUBST(GNU_OBJC_CFLAGS)
4936 AC_SUBST(OTHER_FILES)
4938 if test -n "${term_header}"; then
4939 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4940 [Define to the header for the built-in window system.])
4943 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4944 [Define to the canonical Emacs configuration name.])
4945 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4946 [Define to the options passed to configure.])
4951 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4952 AC_DEFINE(HAVE_X_WINDOWS, 1,
4953 [Define to 1 if you want to use the X window system.])
4955 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4957 if test "$HAVE_CAIRO" = "yes"; then
4958 FONT_OBJ="ftfont.o ftcrfont.o"
4959 elif test "$HAVE_XFT" = "yes"; then
4960 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4961 elif test "$HAVE_FREETYPE" = "yes"; then
4962 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4972 if test "${USE_X_TOOLKIT}" != "none" ; then
4974 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4975 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4976 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4977 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4978 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4982 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4983 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4987 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4988 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4989 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4993 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4994 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4997 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
5000 AC_SUBST(WIDGET_OBJ)
5003 case "$USE_X_TOOLKIT" in
5004 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5005 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5006 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5008 if test "$HAVE_XWIDGETS" = "yes"; then
5009 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5011 AC_SUBST(TOOLKIT_LIBW)
5013 if test "${opsys}" != "mingw32"; then
5014 if test "$USE_X_TOOLKIT" = "none"; then
5015 LIBXT_OTHER="\$(LIBXSM)"
5017 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5020 AC_SUBST(LIBXT_OTHER)
5022 if test "${HAVE_X11}" = "yes" ; then
5023 AC_DEFINE(HAVE_X11, 1,
5024 [Define to 1 if you want to use version 11 of X windows.])
5025 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5029 AC_SUBST(LIBX_OTHER)
5032 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5034 elif test "$USE_X_TOOLKIT" = none; then
5036 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5037 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5039 LIBXMENU='$(lwlibdir)/liblw.a'
5040 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5044 AC_CACHE_CHECK([for struct alignment],
5045 [emacs_cv_struct_alignment],
5047 [AC_LANG_PROGRAM([[#include <stddef.h>
5048 struct __attribute__ ((aligned (8))) s { char c; };
5049 struct t { char c; struct s s; };
5050 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5052 [emacs_cv_struct_alignment=yes],
5053 [emacs_cv_struct_alignment=no])])
5054 if test "$emacs_cv_struct_alignment" = yes; then
5055 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5056 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5057 structure to an N-byte boundary.])
5060 if test "${GNU_MALLOC}" = "yes" ; then
5061 AC_DEFINE(GNU_MALLOC, 1,
5062 [Define to 1 if you want to use the GNU memory allocator.])
5066 if test "${REL_ALLOC}" = "yes" ; then
5067 AC_DEFINE(REL_ALLOC, 1,
5068 [Define REL_ALLOC if you want to use the relocating allocator for
5071 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5073 AC_SUBST(RALLOC_OBJ)
5075 if test "$opsys" = "cygwin"; then
5076 CYGWIN_OBJ="cygw32.o"
5077 ## Cygwin differs because of its unexec().
5079 POST_ALLOC_OBJ=lastfile.o
5080 elif test "$opsys" = "mingw32"; then
5083 POST_ALLOC_OBJ=lastfile.o
5086 PRE_ALLOC_OBJ=lastfile.o
5089 AC_SUBST(CYGWIN_OBJ)
5090 AC_SUBST(PRE_ALLOC_OBJ)
5091 AC_SUBST(POST_ALLOC_OBJ)
5093 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5094 dnl verbatim defined above. The tricky name is apropos, as this hack
5095 dnl makes Fortify go sour!
5096 AH_VERBATIM([FORTIFY_SOUR],
5097 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5098 The workaround disables some useful run-time checking, so it
5099 should be conditional to the platforms with the performance bug.
5100 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5101 #if defined __APPLE__ && defined __GNUC__
5102 # ifndef _DONT_USE_CTYPE_INLINE_
5103 # define _DONT_USE_CTYPE_INLINE_
5105 # ifndef _FORTIFY_SOURCE
5106 # define _FORTIFY_SOURCE 0
5111 # If user asks to omit features, disable optional features that gnulib
5112 # might otherwise enable.
5113 if test "$with_features" = no && test "$enable_acl" != yes; then
5117 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5118 # it temporarily reverts them to their pre-pkg-config values,
5119 # because gnulib needs to work with both src (which uses the
5120 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5121 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5122 # and it therefore needs to run in an environment where LIBS does not
5123 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5124 # for some package unrelated to lib-src.
5127 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5128 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5129 gl_ASSERT_NO_GNULIB_POSIXCHECK
5130 gl_ASSERT_NO_GNULIB_TESTS
5135 if test "${opsys}" = "mingw32"; then
5136 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5137 # Remove unneeded switches from the value of CC that goes to Makefiles
5138 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5142 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5144 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5147 ## The -headerpad option tells ld (see man page) to leave room at the
5148 ## end of the header for adding load commands. Needed for dumping.
5149 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5150 ## architecture (where they are 78 bytes each). The actual number of
5151 ## load commands added is not consistent but normally ranges from
5152 ## about 14 to about 34. Setting it high gets us plenty of slop and
5153 ## only costs about 1.5K of wasted binary space.
5154 headerpad_extra=1000
5155 if test "$HAVE_NS" = "yes"; then
5156 libs_nsgui="-framework AppKit"
5157 if test "$NS_IMPL_COCOA" = "yes"; then
5158 libs_nsgui="$libs_nsgui -framework IOKit"
5163 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5165 ## This is here because src/Makefile.in did some extra fiddling around
5166 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5167 ## LD_SWITCH_SYSTEM_TEMACS instead,
5168 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5169 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5172 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5173 ## find X at run-time.
5174 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5175 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5176 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5177 ## had different values in configure (in ac_link) and src/Makefile.in.
5178 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5179 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5182 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5183 case "$canonical" in
5184 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5185 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5189 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5192 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5193 # Ubuntu, and other systems with "hardened" GCC configurations for
5194 # some reason (Bug#18784). We don't know why this works, but not
5195 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5196 # when trying the option, otherwise clang keeps warning that it does
5197 # not understand it, and pre-4.6 GCC has a similar problem
5198 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5199 # spelling used by GCC 6.1.0 and later (Bug#24682).
5201 [for $CC option to disable position independent executables],
5202 [emacs_cv_prog_cc_no_pie],
5203 [emacs_save_c_werror_flag=$ac_c_werror_flag
5204 emacs_save_LDFLAGS=$LDFLAGS
5205 ac_c_werror_flag=yes
5206 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5207 test $emacs_cv_prog_cc_no_pie = no && break
5208 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5209 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5211 ac_c_werror_flag=$emacs_save_c_werror_flag
5212 LDFLAGS=$emacs_save_LDFLAGS])
5213 if test "$emacs_cv_prog_cc_no_pie" != no; then
5214 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5217 if test x$ac_enable_profiling != x ; then
5219 *freebsd | gnu-linux) ;;
5220 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5224 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5226 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5228 ## Common for all window systems
5229 if test "$window_system" != "none"; then
5230 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5231 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5232 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5235 AC_SUBST(WINDOW_SYSTEM_OBJ)
5237 AH_TOP([/* GNU Emacs site configuration template file.
5239 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5240 Free Software Foundation, Inc.
5242 This file is part of GNU Emacs.
5244 GNU Emacs is free software: you can redistribute it and/or modify
5245 it under the terms of the GNU General Public License as published by
5246 the Free Software Foundation, either version 3 of the License, or (at
5247 your option) any later version.
5249 GNU Emacs is distributed in the hope that it will be useful,
5250 but WITHOUT ANY WARRANTY; without even the implied warranty of
5251 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5252 GNU General Public License for more details.
5254 You should have received a copy of the GNU General Public License
5255 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5258 /* No code in Emacs #includes config.h twice, but some bits of code
5259 intended to work with other packages as well (like gmalloc.c)
5260 think they can include it as many times as they like. */
5261 #ifndef EMACS_CONFIG_H
5262 #define EMACS_CONFIG_H
5265 AH_BOTTOM([#include <conf_post.h>
5267 #endif /* EMACS_CONFIG_H */
5276 #### Report on what we decided to do.
5277 #### Report GTK as a toolkit, even if it doesn't use Xt.
5278 #### It makes printing result more understandable as using GTK sets
5279 #### toolkit_scroll_bars to yes by default.
5280 if test "${HAVE_GTK}" = "yes"; then
5281 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5284 if test $USE_ACL -ne 0; then
5285 ACL_SUMMARY="yes $LIB_ACL"
5290 emacs_standard_dirs='Standard dirs'
5292 Configured for '${canonical}'.
5294 Where should the build process find the source code? ${srcdir}
5295 What compiler should emacs be built with? ${CC} ${CFLAGS}
5296 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5297 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5298 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5299 What window system should Emacs use? ${window_system}
5300 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5301 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5302 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5305 emacs_config_features=
5306 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5307 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5308 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5309 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5312 CANNOT_DUMP) eval val=\${$opt} ;;
5313 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5314 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5315 *) eval val=\${HAVE_$opt} ;;
5318 xno|xnone|x) continue ;;
5323 GTK*|LUCID|MOTIF) opt=$val ;;
5328 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5331 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5332 [Summary of some of the main features enabled by configure.])
5334 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5335 Does Emacs use -lXpm? ${HAVE_XPM}
5336 Does Emacs use -ljpeg? ${HAVE_JPEG}
5337 Does Emacs use -ltiff? ${HAVE_TIFF}
5338 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5339 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5340 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5341 Does Emacs use cairo? ${HAVE_CAIRO}
5342 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5343 Does Emacs support sound? ${HAVE_SOUND}
5344 Does Emacs use -lgpm? ${HAVE_GPM}
5345 Does Emacs use -ldbus? ${HAVE_DBUS}
5346 Does Emacs use -lgconf? ${HAVE_GCONF}
5347 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5348 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5349 Does Emacs use access control lists? ${ACL_SUMMARY}
5350 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5351 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5352 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5353 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5354 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5355 Does Emacs use -lotf? ${HAVE_LIBOTF}
5356 Does Emacs use -lxft? ${HAVE_XFT}
5357 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5358 Does Emacs directly use zlib? ${HAVE_ZLIB}
5359 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5360 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5361 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5362 Does Emacs have threading support in lisp? ${threads_enabled}
5365 if test -n "${EMACSDATA}"; then
5366 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5368 if test -n "${EMACSDOC}"; then
5369 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5374 if test "$HAVE_NS" = "yes"; then
5376 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5377 The installed application will go to nextstep/Emacs.app and can be
5378 run or moved from there."])
5379 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5380 echo "The application will be fully self-contained."
5382 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5383 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5384 to run if these resources are not installed."])
5389 if test "${opsys}" = "cygwin"; then
5391 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5397 # Remove any trailing slashes in these variables.
5399 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5401 case $exec_prefix in
5402 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5405 if test "$HAVE_NS" = "yes"; then
5406 if test "$NS_IMPL_GNUSTEP" = yes; then
5407 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5408 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5409 ns_check_file=Resources/Info-gnustep.plist
5411 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5412 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5413 ns_check_file=Contents/Info.plist
5415 AC_SUBST(ns_check_file)
5418 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5420 dnl config.status treats $srcdir specially, so I think this is ok...
5421 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5423 m4_define([subdir_makefiles],
5424 [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])
5425 SUBDIR_MAKEFILES="subdir_makefiles"
5426 AC_CONFIG_FILES(subdir_makefiles)
5428 dnl test/ is not present in release tarfiles.
5429 opt_makefile=test/Makefile
5431 if test -f "$srcdir/$opt_makefile.in"; then
5432 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5433 dnl Again, it's best not to use a variable. Though you can add
5434 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5435 AC_CONFIG_FILES([test/Makefile])
5439 dnl The admin/ directory used to be excluded from tarfiles.
5440 if test -d $srcdir/admin; then
5441 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5442 AC_CONFIG_FILES([admin/charsets/Makefile])
5443 AC_CONFIG_FILES([admin/unidata/Makefile])
5444 AC_CONFIG_FILES([admin/grammars/Makefile])
5448 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5450 AC_SUBST(SUBDIR_MAKEFILES_IN)
5452 dnl You might wonder (I did) why epaths.h is generated by running make,
5453 dnl rather than just letting configure generate it from epaths.in.
5454 dnl One reason is that the various paths are not fully expanded (see above);
5455 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5456 dnl Secondly, the GNU Coding standards require that one should be able
5457 dnl to run 'make prefix=/some/where/else' and override the values set
5458 dnl by configure. This also explains the 'move-if-change' test and
5459 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5460 AC_CONFIG_COMMANDS([src/epaths.h], [
5461 if test "${opsys}" = "mingw32"; then
5462 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5464 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5465 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5466 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5468 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5469 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5471 AC_CONFIG_COMMANDS([src/.gdbinit], [
5472 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5473 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5477 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5478 dnl See comments for etc-refcards-emacsver.tex.
5479 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5480 dnl it is not quite the same. But we are generating in $srcdir.
5481 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5482 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5483 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5486 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5487 dnl then a directory etc/refcards is created in the build directory,
5488 dnl which is probably harmless, but confusing (in out-of-tree builds).
5489 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5490 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5491 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5492 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5493 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5496 if test $AUTO_DEPEND = yes; then
5497 for dir in $AUTODEPEND_PARENTS; do
5498 AS_MKDIR_P([$dir/deps])
5504 if test ! "$with_mailutils"; then
5505 if test "$with_pop" = yes; then
5506 AC_MSG_WARN([This configuration installs a 'movemail' program
5507 that retrieves POP3 email via only insecure channels.
5508 To omit insecure POP3, you can use '$0 --without-pop'.])
5513 # Don't suggest GNU Mailutils, as it hasn't been ported.
5516 emacs_fix_movemail="use '$0 --with-mailutils'"
5517 case `(movemail --version) 2>/dev/null` in
5519 *) emacs_fix_movemail="install GNU Mailutils
5520 <http://mailutils.org> and $emacs_fix_movemail";;
5522 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5526 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])