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 AC_ARG_ENABLE(check-lisp-object-type,
511 [AS_HELP_STRING([--enable-check-lisp-object-type],
512 [enable compile time checks for the Lisp_Object data type.
513 This is useful for development for catching certain types of bugs.])],
514 if test "${enableval}" != "no"; then
515 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
516 [Define this to enable compile time checks for the Lisp_Object data type.])
520 dnl The name of this option is unfortunate. It predates, and has no
521 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
522 dnl Actually, it stops it working.
523 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
524 AC_ARG_ENABLE(profiling,
525 [AS_HELP_STRING([--enable-profiling],
526 [build emacs with low-level, gprof profiling support.
527 Mainly useful for debugging Emacs itself. May not work on
528 all platforms. Stops profiler.el working.])],
529 [ac_enable_profiling="${enableval}"],[])
530 if test x$ac_enable_profiling != x ; then
531 PROFILING_CFLAGS="-DPROFILING=1 -pg"
535 AC_SUBST(PROFILING_CFLAGS)
537 AC_ARG_ENABLE(autodepend,
538 [AS_HELP_STRING([--enable-autodepend],
539 [automatically generate dependencies to .h-files.
540 Requires gcc, enabled if found.])],
541 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
543 AC_ARG_ENABLE(gtk-deprecation-warnings,
544 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
545 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
546 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
549 AC_ARG_ENABLE([build-details],
550 [AS_HELP_STRING([--disable-build-details],
551 [Make the build more deterministic by omitting host
552 names, time stamps, etc. from the output.])],
553 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
554 AC_SUBST([BUILD_DETAILS])
556 dnl This used to use changequote, but, apart from 'changequote is evil'
557 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
558 dnl the great gob of text. Thus it's not processed for possible expansion.
559 dnl Just make sure the brackets remain balanced.
561 dnl Since Emacs can't find matching pairs of quotes, boundaries are
562 dnl indicated by comments.
566 ### If you add support for a new configuration, add code to this
567 ### switch statement to recognize your configuration name and select
568 ### the appropriate opsys.
570 ### As far as handling version numbers on operating systems is
571 ### concerned, make sure things will fail in a fixable way. If
572 ### /etc/MACHINES doesn't say anything about version numbers, be
573 ### prepared to handle anything reasonably. If version numbers
574 ### matter, be sure /etc/MACHINES says something about it.
577 case "${canonical}" in
579 ## GNU/Linux and similar ports
594 ## FreeBSD kernel + glibc based userland
605 *-*-openbsd* | *-*-mirbsd* )
609 ## Apple Darwin / macOS
611 case "${canonical}" in
612 *-apple-darwin[0-9].*) unported=yes ;;
613 i[3456]86-* | x86_64-* ) ;;
617 ## FIXME: Find a way to use Fink if available (Bug#11507).
620 ## Chromium Native Client
630 ## HP 9000 series 700 and 800, running HP/UX
634 hppa*-hp-hpux1[1-9]* )
636 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
640 rs6000-ibm-aix4.[23]* )
643 powerpc-ibm-aix4.[23]* )
646 rs6000-ibm-aix[56]* )
649 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
655 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
656 | x86_64-*-solaris2* | x86_64-*-sunos5*)
657 case "${canonical}" in
659 amd64-*-*|x86_64-*-*) ;;
663 case "${canonical}" in
664 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
666 emacs_check_sunpro_c=yes
668 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
669 ## Note that Emacs 23.1's NEWS said the following would be dropped.
670 *-sunos5.6* | *-solaris2.6* )
674 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
675 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
677 emacs_check_sunpro_c=yes
680 ## Watch out for a compiler that we know will not work.
681 case "${canonical}" in
682 *-solaris* | *-sunos5* )
683 if [ "x$CC" = x/usr/ucb/cc ]; then
684 ## /usr/ucb/cc doesn't work;
685 ## we should find some other compiler that does work.
693 ## Intel 386 machines where we don't care about the manufacturer.
695 case "${canonical}" in
696 *-darwin* ) opsys=darwin ;;
699 # MinGW overrides and adds some system headers in nt/inc.
700 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
702 *-sysv4.2uw* ) opsys=unixware ;;
703 *-sysv5uw* ) opsys=unixware ;;
704 *-sysv5OpenUNIX* ) opsys=unixware ;;
705 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
711 case "${canonical}" in
714 # MinGW overrides and adds some system headers in nt/inc.
715 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
717 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
726 ### If the code above didn't choose an operating system, just choose
727 ### an operating system based on the configuration name. You really
728 ### only want to use this when you have no idea what the right
729 ### operating system is; if you know what operating systems a machine
730 ### runs, it's cleaner to make it explicit in the case statement
732 if test x"${opsys}" = x; then
733 case "${canonical}" in
734 *-gnu* ) opsys=gnu ;;
744 if test $unported = yes; then
745 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
746 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
747 Check 'etc/MACHINES' for recognized configuration names.])
750 #### Choose a compiler.
752 dnl Don't bother to test for C89.
753 AC_DEFUN([_AC_PROG_CC_C89], [$2])
755 dnl Sets GCC=yes if using gcc.
756 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
757 if test -n "$XCRUN"; then
758 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
759 test -n "$AR" && export AR
762 dnl Emacs needs C99 or later.
767 if test x$GCC = xyes; then
768 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
771 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
772 AC_DEFUN([gl_CRYPTO_CHECK])
773 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
774 # as we don't use them.
775 AC_DEFUN([gl_FCNTL_O_FLAGS])
776 # Avoid gnulib's test for pthread_sigmask.
778 for func in $ac_func_list; do
779 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
782 # Use the system putenv even if it lacks GNU features, as we don't need them,
783 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
784 AC_CHECK_FUNCS_ONCE([putenv])
785 AC_DEFUN([gl_FUNC_PUTENV],
786 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
787 # Emacs does not use the wchar or wctype-h modules.
788 AC_DEFUN([gt_TYPE_WINT_T],
789 [GNULIB_OVERRIDES_WINT_T=0
790 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
792 # Initialize gnulib right after choosing the compiler.
793 dnl Amongst other things, this sets AR and ARFLAGS.
796 if test "$ac_test_CFLAGS" != set; then
797 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
798 # if -g3 works and the user does not specify CFLAGS.
799 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
802 emacs_g3_CFLAGS='-g3';;
804 emacs_g3_CFLAGS='-g3 -O2';;
808 if test -n "$emacs_g3_CFLAGS"; then
809 emacs_save_CFLAGS=$CFLAGS
810 CFLAGS=$emacs_g3_CFLAGS
811 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
812 [emacs_cv_prog_cc_g3],
813 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
814 [emacs_cv_prog_cc_g3=yes],
815 [emacs_cv_prog_cc_g3=no])])
816 if test $emacs_cv_prog_cc_g3 != yes; then
817 CFLAGS=$emacs_save_CFLAGS
819 if test $opsys = mingw32; then
820 CFLAGS="$CFLAGS -gdwarf-2"
827 # No optimization flag was inferred for this non-GCC compiler.
828 # Try -O. This is needed for xlc on AIX; see Bug#14258.
829 emacs_save_CFLAGS=$CFLAGS
830 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
832 AC_CACHE_CHECK([whether $CC accepts -O],
833 [emacs_cv_prog_cc_o],
834 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
835 [emacs_cv_prog_cc_o=yes],
836 [emacs_cv_prog_cc_o=no])])
837 if test $emacs_cv_prog_cc_o != yes; then
838 CFLAGS=$emacs_save_CFLAGS
843 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
844 # ---------------------------------------------------------------------------
845 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
846 # Otherwise, run RUN-IF-NOT-FOUND.
847 AC_DEFUN([gl_GCC_VERSION_IFELSE],
851 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
854 # error "your version of gcc is older than $1.$2"
861 AC_ARG_ENABLE([gcc-warnings],
862 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
863 [control generation of GCC warnings. The TYPE 'yes'
864 means to fail if any warnings are issued; 'warn-only'
865 means issue warnings without failing (default for
866 developer builds); 'no' means disable warnings
867 (default for non-developer builds).])],
870 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
872 gl_gcc_warnings=$enableval],
873 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
874 # is a developer as opposed to a builder. This is most likely true
875 # if GCC is recent enough and there is a .git directory or file;
876 # however, if there is also a .tarball-version file it is probably
877 # just a release imported into Git for patch management.
879 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
880 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])]
884 # clang is unduly picky about some things.
885 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
892 [emacs_cv_clang=yes],
893 [emacs_cv_clang=no])])
895 # When compiling with GCC, prefer -isystem to -I when including system
896 # include files, to avoid generating useless diagnostics for the files.
897 AS_IF([test $gl_gcc_warnings = no],
900 AS_IF([test "$emacs_cv_clang" = yes],
902 # Turn off some warnings if supported.
903 gl_WARN_ADD([-Wno-switch])
904 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
905 gl_WARN_ADD([-Wno-pointer-sign])
906 gl_WARN_ADD([-Wno-string-plus-int])
907 gl_WARN_ADD([-Wno-unknown-attributes])
912 # This, $nw, is the list of warnings we disable.
915 case $with_x_toolkit in
916 lucid | athena | motif)
917 # Old toolkits mishandle 'const'.
918 nw="$nw -Wwrite-strings"
921 AS_IF([test $gl_gcc_warnings = yes],
922 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
923 AC_SUBST([WERROR_CFLAGS])
925 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
926 nw="$nw -Woverlength-strings" # Not a problem these days
927 nw="$nw -Wformat-nonliteral" # we do this a lot
928 nw="$nw -Wvla" # Emacs uses <vla.h>.
929 nw="$nw -Wswitch-default" # Too many warnings for now
930 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
931 nw="$nw -Winline" # OK to ignore 'inline'
932 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
933 # signed overflow has undefined behavior
934 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
935 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
936 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
938 # Emacs doesn't care about shadowing; see
939 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
942 # Emacs's use of alloca inhibits protecting the stack.
943 nw="$nw -Wstack-protector"
945 # Emacs's use of partly-const functions such as Fgnutls_available_p
946 # make this option problematic.
947 nw="$nw -Wsuggest-attribute=const"
949 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
950 # option problematic.
951 nw="$nw -Wsuggest-attribute=pure"
953 # This part is merely for shortening the command line,
954 # since -Wall implies -Wswitch.
957 # This part is merely for shortening the command line,
958 # since -Wno-FOO needs to be added below regardless.
959 nw="$nw -Wmissing-field-initializers"
960 nw="$nw -Wtype-limits"
961 nw="$nw -Wunused-parameter"
963 if test $emacs_cv_clang = yes; then
964 nw="$nw -Wcast-align"
967 # This causes too much noise in the MinGW build
968 if test $opsys = mingw32; then
969 nw="$nw -Wpointer-sign"
972 gl_MANYWARN_ALL_GCC([ws])
973 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
977 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
978 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
979 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
980 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
981 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
982 gl_WARN_ADD([-Wno-format-nonliteral])
984 # More things that clang is unduly picky about.
985 if test $emacs_cv_clang = yes; then
986 gl_WARN_ADD([-Wno-tautological-compare])
987 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
990 # This causes too much noise in the MinGW build
991 if test $opsys = mingw32; then
992 gl_WARN_ADD([-Wno-pointer-sign])
995 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
996 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
997 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
998 [/* Enable compile-time and run-time bounds-checking, and some warnings,
999 without upsetting glibc 2.15+. */
1000 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1001 && defined __OPTIMIZE__ && __OPTIMIZE__)
1002 # define _FORTIFY_SOURCE 2
1006 # We use a slightly smaller set of warning options for lib/.
1007 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
1009 nw="$nw -Wunused-macros"
1011 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1012 AC_SUBST([GNULIB_WARN_CFLAGS])
1022 AC_ARG_ENABLE(link-time-optimization,
1023 [AS_HELP_STRING([--enable-link-time-optimization],
1024 [build emacs with link-time optimization.
1025 This requires GCC 4.5.0 or later, or clang.
1026 (Note that clang support is experimental - see INSTALL.)
1027 It also makes Emacs harder to debug, and when we tried it
1028 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1029 recommended for typical use.])],
1030 if test "${enableval}" != "no"; then
1032 if test $emacs_cv_clang = yes; then
1033 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1034 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1035 if test -x "$GOLD_PLUGIN"; then
1038 elif test x$GCC = xyes; then
1039 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1040 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1041 if test x$CPUS != x; then
1047 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1049 if test -z "$LTO"; then
1053 CFLAGS="$CFLAGS $LTO"
1054 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1055 [ac_lto_supported=yes], [ac_lto_supported=no])
1056 CFLAGS="$old_CFLAGS"
1058 AC_MSG_RESULT([$ac_lto_supported])
1059 if test "$ac_lto_supported" = "yes"; then
1060 CFLAGS="$CFLAGS $LTO"
1061 if test x$emacs_cv_clang = xyes; then
1062 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1063 # WARNING: 'ar --plugin ...' doesn't work without
1064 # command, so plugin name is appended to ARFLAGS.
1065 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1066 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1068 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1069 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1070 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1071 dnl dump core on Fedora 20, so play it safe for now.
1072 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1073 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1079 dnl Automake replacements.
1080 AC_DEFUN([AM_CONDITIONAL],
1084 dnl Prefer silent make output. For verbose output, use
1085 dnl 'configure --disable-silent-rules' or 'make V=1' .
1086 dnl This code is adapted from Automake.
1087 dnl Although it can be simplified now that GNU Make is assumed,
1088 dnl the simplification hasn't been done yet.
1089 AC_ARG_ENABLE([silent-rules],
1091 [--disable-silent-rules],
1092 [verbose build output (undo: "make V=0")])])
1093 if test "$enable_silent_rules" = no; then
1094 AM_DEFAULT_VERBOSITY=1
1096 AM_DEFAULT_VERBOSITY=0
1099 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1101 AC_SUBST([AM_DEFAULT_V])
1102 AC_SUBST([AM_DEFAULT_VERBOSITY])
1104 dnl Some other nice autoconf tests.
1106 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1108 dnl if test "x$RANLIB" = x; then
1113 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1114 dnl can be made to directories. This is not relevant for our usage, and
1115 dnl excludes some cases that work fine for us. Eg MS Windows or files
1116 dnl hosted on AFS, both examples where simple links work, but links to
1117 dnl directories fail. We use a cut-down version instead.
1120 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1121 rm -f conf$$ conf$$.file
1123 LN_S_FILEONLY='cp -p'
1125 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1126 dnl random program in the current directory.
1127 if (echo >conf$$.file) 2>/dev/null; then
1128 if ln -s conf$$.file conf$$ 2>/dev/null; then
1129 if test "$opsys" = "mingw32"; then
1130 LN_S_FILEONLY='/bin/ln -s'
1132 LN_S_FILEONLY='ln -s'
1134 elif ln conf$$.file conf$$ 2>/dev/null; then
1135 if test "$opsys" = "mingw32"; then
1136 LN_S_FILEONLY=/bin/ln
1143 rm -f conf$$ conf$$.file
1145 if test "$LN_S_FILEONLY" = "ln -s"; then
1146 AC_MSG_RESULT([yes])
1148 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1151 AC_SUBST(LN_S_FILEONLY)
1154 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1155 dnl doesn't support links to directories, as in "ln file dir". But that
1156 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1157 dnl executables at "make install" time.
1158 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1159 dnl for more details.
1160 if test "$opsys" = "mingw32"; then
1164 dnl On some Debian versions, "install-info" prints irritating messages
1165 dnl "This is not dpkg install-info anymore, but GNU install-info"
1166 dnl if called via an absolute file name.
1167 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1168 dnl Sadly some people may have an old ginstall-info installed on
1169 dnl non-Debian systems, so we can't use this.
1170 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1171 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1173 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1174 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1175 dnl Don't use GZIP, which is used by gzip for additional parameters.
1176 AC_PATH_PROG(GZIP_PROG, gzip)
1178 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1179 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1183 if test $opsys = gnu-linux; then
1184 if test "${SETFATTR+set}" != set; then
1185 AC_CACHE_CHECK([for setfattr],
1186 [emacs_cv_prog_setfattr],
1188 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1189 emacs_cv_prog_setfattr=yes
1191 emacs_cv_prog_setfattr=no
1193 if test "$emacs_cv_prog_setfattr" = yes; then
1194 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1200 AC_SUBST([SETFATTR])
1203 case $opsys,$PAXCTL_notdumped in
1204 gnu-linux, | netbsd,)
1205 AC_PATH_PROG([PAXCTL], [paxctl], [],
1206 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1207 if test -n "$PAXCTL"; then
1208 if test "$opsys" = netbsd; then
1209 PAXCTL_dumped='$(PAXCTL) +a'
1210 PAXCTL_notdumped=$PAXCTL_dumped
1212 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1213 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1214 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1215 AC_MSG_RESULT([yes])
1220 if test -n "$PAXCTL"; then
1221 PAXCTL_dumped='$(PAXCTL) -zex'
1222 PAXCTL_notdumped='$(PAXCTL) -r'
1227 AC_SUBST([PAXCTL_dumped])
1228 AC_SUBST([PAXCTL_notdumped])
1230 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1231 if test "${MAKEINFO:=makeinfo}" != "no"; then
1232 case `($MAKEINFO --version) 2>/dev/null` in
1233 *' (GNU texinfo) '4.1[[3-9]]* | \
1234 *' (GNU texinfo) '[[5-9]]* | \
1235 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1240 ## Makeinfo is unusual. For a released Emacs, the manuals are
1241 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1242 ## therefore in the category of "special tools" not normally required, which
1243 ## configure does not have to check for (eg autoconf itself).
1244 ## In a repository checkout on the other hand, the manuals are not included.
1245 ## So makeinfo is a requirement to build from the repository, and configure
1246 ## should test for it as it does for any other build requirement.
1247 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1248 ## with pre-built manuals, from a repository checkout.
1251 if test "$MAKEINFO" = "no"; then
1253 if test "x${with_makeinfo}" = "xno"; then
1255 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1256 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1257 source tree does not seem to have pre-built manuals in the 'info' directory.
1258 Either install a suitable version of makeinfo, or re-run configure
1259 with the '--without-makeinfo' option to build without the manuals.] )
1262 AC_SUBST([MAKEINFO])
1263 AC_SUBST(HAVE_MAKEINFO)
1265 if test $opsys = mingw32; then
1266 DOCMISC_W32=efaq-w32
1270 AC_SUBST(DOCMISC_W32)
1272 dnl Add our options to ac_link now, after it is set up.
1274 if test x$GCC = xyes; then
1275 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1276 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1278 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1279 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1282 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1283 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1284 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1285 dnl if not built to support GNU ld.
1287 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1288 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1289 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1290 dnl Eg "make LDFLAGS=... all" could run into problems,
1291 dnl http://bugs.debian.org/684788
1292 dnl * unnecessary, since temacs is the only thing that actually needs it.
1293 dnl Indeed this is where it was originally, prior to:
1294 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1295 late_LDFLAGS="$LDFLAGS"
1296 if test x$GCC = xyes; then
1297 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1299 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1302 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1304 AC_MSG_CHECKING([for -znocombreloc])
1305 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1306 [AC_MSG_RESULT(yes)],
1307 LDFLAGS_NOCOMBRELOC=
1308 [AC_MSG_RESULT(no)])
1310 LDFLAGS="$late_LDFLAGS"
1312 AC_CACHE_CHECK([whether addresses are sanitized],
1313 [emacs_cv_sanitize_address],
1316 [[#ifndef __has_feature
1317 #define __has_feature(f) 0
1319 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1321 error "Addresses are not sanitized.";
1324 [emacs_cv_sanitize_address=yes],
1325 [emacs_cv_sanitize_address=no])])
1327 dnl The function dump-emacs will not be defined and temacs will do
1328 dnl (load "loadup") automatically unless told otherwise.
1329 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1331 nacl) CANNOT_DUMP=yes ;;
1334 if test "$CANNOT_DUMP" = "yes"; then
1335 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1336 elif test "$emacs_cv_sanitize_address" = yes; then
1337 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1340 AC_SUBST(CANNOT_DUMP)
1343 UNEXEC_OBJ=unexelf.o
1345 # MSDOS uses unexcoff.o
1347 UNEXEC_OBJ=unexaix.o
1353 UNEXEC_OBJ=unexmacosx.o
1356 UNEXEC_OBJ=unexhp9k800.o
1359 UNEXEC_OBJ=unexw32.o
1362 # Use the Solaris dldump() function, called from unexsol.c, to dump
1363 # emacs, instead of the generic ELF dump code found in unexelf.c.
1364 # The resulting binary has a complete symbol table, and is better
1365 # for debugging and other observability tools (debuggers, pstack, etc).
1367 # If you encounter a problem using dldump(), please consider sending
1368 # a message to the OpenSolaris tools-linking mailing list:
1369 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1371 # It is likely that dldump() works with older Solaris too, but this has
1372 # not been tested, so for now this change is for Solaris 10 or newer.
1373 UNEXEC_OBJ=unexsol.o
1376 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1381 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1382 ## The system compiler, GCC, has apparently been modified to not
1383 ## look there, contrary to what a stock GCC would do.
1384 ### It's not our place to do this. See bug#10313#17.
1385 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1390 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1391 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1395 ### It's not our place to do this. See bug#10313#17.
1396 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1401 ## Han Boetes <han@boetes.org> says this is necessary,
1402 ## otherwise Emacs dumps core on elf systems.
1403 LD_SWITCH_SYSTEM="-Z"
1406 AC_SUBST(LD_SWITCH_SYSTEM)
1408 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1410 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1411 ## which has not been defined yet. When this was handled with cpp,
1412 ## it was expanded to null when configure sourced the s/*.h file.
1413 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1414 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1415 ## (or somesuch), but because it is supposed to go at the _front_
1416 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1417 ## Compare with the gnu-linux case below, which added to the end
1418 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1419 ## LD_SWITCH_SYSTEM_TEMACS.
1422 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1429 AC_CHECK_DECL([__ELF__])
1430 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1431 ## With ELF, make sure that all common symbols get allocated to in the
1432 ## data section. Otherwise, the dump of temacs may miss variables in
1433 ## the shared library that have been initialized. For example, with
1434 ## GNU libc, __malloc_initialized would normally be resolved to the
1435 ## shared library's .bss section, which is fatal.
1436 if test "x$GCC" = "xyes"; then
1437 C_SWITCH_MACHINE="-fno-common"
1439 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1442 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1443 dnl albeit under the mistaken assumption that said file
1444 dnl was no longer used.
1445 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1449 AC_SUBST(C_SWITCH_MACHINE)
1451 AC_SUBST(UNEXEC_OBJ)
1454 ## Some programs in src produce warnings saying certain subprograms
1455 ## are too complex and need a MAXMEM value greater than 2000 for
1456 ## additional optimization. --nils@exp-math.uni-essen.de
1457 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1458 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1459 if test "$opsys" = "mingw32"; then
1460 case "$canonical" in
1461 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1462 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1465 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1466 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1467 AC_SUBST(C_SWITCH_SYSTEM)
1472 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1473 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1475 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1477 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1479 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1481 ## Motif needs -lgen.
1482 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1485 AC_SUBST(LIBS_SYSTEM)
1487 ### Make sure subsequent tests use flags consistent with the build flags.
1489 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1490 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1492 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1495 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1496 AC_DEFUN([AC_TYPE_SIZE_T])
1497 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1498 AC_DEFUN([AC_TYPE_UID_T])
1500 # sqrt and other floating-point functions such as fmod and frexp
1501 # are found in -lm on many systems.
1503 AC_SEARCH_LIBS([sqrt], [m])
1504 if test "X$LIBS" = "X$OLD_LIBS"; then
1507 LIB_MATH=$ac_cv_search_sqrt
1511 dnl Current possibilities handled by sed (aix4-2 -> aix,
1512 dnl gnu-linux -> gnu/linux, etc.):
1513 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1514 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1515 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1522 ## Adding -lm confuses the dynamic linker, so omit it.
1525 freebsd | dragonfly )
1526 SYSTEM_TYPE=berkeley-unix
1528 gnu-linux | gnu-kfreebsd )
1530 hpux10-20 | hpux11 )
1534 SYSTEM_TYPE=windows-nt
1536 dnl NB this may be adjusted below.
1538 SYSTEM_TYPE=berkeley-unix
1542 SYSTEM_TYPE=usg-unix-v
1548 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1549 [The type of system you are compiling for; sets 'system-type'.])
1550 AC_SUBST([SYSTEM_TYPE])
1553 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1554 pre_PKG_CONFIG_LIBS=$LIBS
1556 PKG_PROG_PKG_CONFIG(0.9.0)
1558 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1559 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1560 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1561 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1562 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1563 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1565 AC_DEFUN([EMACS_CHECK_MODULES],
1566 [PKG_CHECK_MODULES([$1], [$2],
1567 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1568 m4_default([$3], [HAVE_$1=yes])],
1569 [m4_default([$4], [HAVE_$1=no])])])
1572 if test "${with_sound}" != "no"; then
1573 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1574 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1575 have_sound_header=yes, [], [
1577 #define WIN32_LEAN_AND_MEAN
1578 #include <windows.h>
1581 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1582 AC_MSG_ERROR([OSS sound support requested but not found.])
1584 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1585 # Emulation library used on NetBSD.
1586 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1587 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1588 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1589 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1590 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1594 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1596 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1597 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1598 if test $HAVE_ALSA = yes; then
1599 SAVE_CFLAGS="$CFLAGS"
1601 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1602 LIBS="$ALSA_LIBS $LIBS"
1603 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1604 emacs_alsa_normal=yes,
1605 emacs_alsa_normal=no)
1606 if test "$emacs_alsa_normal" != yes; then
1607 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1608 [[snd_lib_error_set_handler (0);]])],
1609 emacs_alsa_subdir=yes,
1610 emacs_alsa_subdir=no)
1611 if test "$emacs_alsa_subdir" != yes; then
1612 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1614 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1617 CFLAGS="$SAVE_CFLAGS"
1619 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1620 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1621 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1622 elif test "${with_sound}" = "alsa"; then
1623 AC_MSG_ERROR([ALSA sound support requested but not found.])
1625 fi dnl with_sound = alsa|yes
1627 dnl Define HAVE_SOUND if we have sound support. We know it works and
1628 dnl compiles only on the specified platforms. For others, it
1629 dnl probably doesn't make sense to try.
1630 dnl FIXME So surely we should bypass this whole section if not using
1631 dnl one of these platforms?
1632 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1634 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1635 dnl Adjust the --with-sound help text if you change this.
1636 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1637 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1643 AC_SUBST(CFLAGS_SOUND)
1646 dnl checks for header files
1647 AC_CHECK_HEADERS_ONCE(
1654 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1656 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1657 [emacs_cv_personality_addr_no_randomize],
1659 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1660 [[personality (personality (0xffffffff)
1661 | ADDR_NO_RANDOMIZE)]])],
1662 [emacs_cv_personality_addr_no_randomize=yes],
1663 [emacs_cv_personality_addr_no_randomize=no])])
1664 if test $emacs_cv_personality_addr_no_randomize = yes; then
1665 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1666 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1669 # Note that Solaris has sys/sysinfo.h which defines struct
1670 # sysinfo as well. To make sure that we're using GNU/Linux
1671 # sysinfo, we explicitly set one of its fields.
1672 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1673 AC_MSG_CHECKING([if Linux sysinfo may be used])
1674 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1675 [[struct sysinfo si;
1678 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1679 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1680 if test $emacs_cv_linux_sysinfo = yes; then
1681 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1682 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1683 [[struct sysinfo si; return si.mem_unit]])],
1684 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1685 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1689 dnl On Solaris 8 there's a compilation warning for term.h because
1690 dnl it doesn't define 'bool'.
1691 AC_CHECK_HEADERS(term.h, , , -)
1693 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1695 if test $ac_cv_have_decl_sys_siglist != yes; then
1696 # For Tru64, at least:
1697 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1702 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1703 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1704 #if HAVE_SYS_SOCKET_H
1705 #include <sys/socket.h>
1707 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1708 #if HAVE_SYS_SOCKET_H
1709 #include <sys/socket.h>
1711 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1712 #if HAVE_SYS_SOCKET_H
1713 #include <sys/socket.h>
1716 dnl checks for structure members
1717 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1718 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1719 struct ifreq.ifr_addr,
1720 struct ifreq.ifr_addr.sa_len], , ,
1721 [AC_INCLUDES_DEFAULT
1722 #if HAVE_SYS_SOCKET_H
1723 #include <sys/socket.h>
1729 dnl Check for endianness.
1730 dnl AC_C_BIGENDIAN is done by gnulib.
1732 dnl check for Make feature
1735 AUTODEPEND_PARENTS='lib src'
1736 dnl check if we have GCC and autodepend is on.
1737 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1738 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1739 SAVE_CFLAGS="$CFLAGS"
1740 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1741 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1742 CFLAGS="$SAVE_CFLAGS"
1743 test -f deps.d || ac_enable_autodepend=no
1745 AC_MSG_RESULT([$ac_enable_autodepend])
1746 if test $ac_enable_autodepend = yes; then
1750 AC_SUBST(AUTO_DEPEND)
1752 dnl checks for operating system services
1753 AC_SYS_LONG_FILE_NAMES
1755 #### Choose a window system.
1757 ## We leave window_system equal to none if
1758 ## we end up building without one. Any new window system should
1759 ## set window_system to an appropriate value and add objects to
1760 ## window-system-specific substs.
1764 if test "$no_x" != yes; then
1768 LD_SWITCH_X_SITE_RPATH=
1769 if test "${x_libraries}" != NONE; then
1770 if test -n "${x_libraries}"; then
1771 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1772 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1773 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1776 x_default_search_path=""
1777 x_search_path=${x_libraries}
1778 if test -z "${x_search_path}"; then
1779 x_search_path=/usr/lib
1781 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1782 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1784 ${x_library}/X11/%L/%T/%N%C%S:\
1785 ${x_library}/X11/%l/%T/%N%C%S:\
1786 ${x_library}/X11/%T/%N%C%S:\
1787 ${x_library}/X11/%L/%T/%N%S:\
1788 ${x_library}/X11/%l/%T/%N%S:\
1789 ${x_library}/X11/%T/%N%S"
1790 if test x"${x_default_search_path}" = x; then
1791 x_default_search_path=${x_search_path}
1793 x_default_search_path="${x_search_path}:${x_default_search_path}"
1797 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1799 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1800 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1803 if test x"${x_includes}" = x; then
1804 bitmapdir=/usr/include/X11/bitmaps
1806 # accumulate include directories that have X11 bitmap subdirectories
1808 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1809 if test -d "${bmd}/X11/bitmaps"; then
1810 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1812 if test -d "${bmd}/bitmaps"; then
1813 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1816 bitmapdir=${bmd_acc#:}
1819 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1821 NS_GNUSTEP_CONFIG=no
1824 tmp_CPPFLAGS="$CPPFLAGS"
1825 tmp_CFLAGS="$CFLAGS"
1826 CPPFLAGS="$CPPFLAGS -x objective-c"
1827 CFLAGS="$CFLAGS -x objective-c"
1830 if test "${with_ns}" != no; then
1831 if test "${opsys}" = darwin; then
1833 ns_appdir=`pwd`/nextstep/Emacs.app
1834 ns_appbindir=${ns_appdir}/Contents/MacOS
1835 ns_appresdir=${ns_appdir}/Contents/Resources
1836 ns_appsrc=Cocoa/Emacs.base
1837 ns_fontfile=macfont.o
1838 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1840 NS_GNUSTEP_CONFIG=yes
1841 GNU_OBJC_CFLAGS=$flags
1842 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1843 elif test -f $GNUSTEP_CONFIG_FILE; then
1845 dnl FIXME sourcing this several times in subshells seems inefficient.
1846 GNUSTEP_SYSTEM_HEADERS=$(
1847 . $GNUSTEP_CONFIG_FILE
1848 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1850 GNUSTEP_SYSTEM_LIBRARIES=$(
1851 . $GNUSTEP_CONFIG_FILE
1852 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1854 dnl I seemed to need these as well with GNUstep-startup 0.25.
1855 GNUSTEP_LOCAL_HEADERS=$(
1856 . $GNUSTEP_CONFIG_FILE
1857 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1859 GNUSTEP_LOCAL_LIBRARIES=$(
1860 . $GNUSTEP_CONFIG_FILE
1861 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1863 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1864 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1865 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1866 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1867 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1868 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1869 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1870 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1871 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1872 dnl If they had chosen to either define it or not, we could have
1873 dnl just used AC_CHECK_DECL here.
1874 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1875 emacs_cv_objc_exceptions,
1876 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1877 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1881 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1882 if test $emacs_cv_objc_exceptions = yes; then
1883 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1884 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1885 [Define if GNUstep uses ObjC exceptions.])
1886 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1889 if test $NS_IMPL_GNUSTEP = yes; then
1890 ns_appdir=`pwd`/nextstep/Emacs.app
1891 ns_appbindir=${ns_appdir}
1892 ns_appresdir=${ns_appdir}/Resources
1893 ns_appsrc=GNUstep/Emacs.base
1894 ns_fontfile=nsfont.o
1897 dnl This is only used while we test the NS headers, it gets reset below.
1898 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1899 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1901 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1902 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1903 are required for a Nextstep build are missing or cannot be compiled.
1904 Either fix this, or re-configure with the option '--without-ns'.])])
1907 if test "${NS_IMPL_COCOA}" = "yes"; then
1908 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1909 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1911 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1912 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1915 error "Mac OS X 10.6 or newer required";
1919 ns_osx_have_106=yes,
1921 AC_MSG_RESULT([$ns_osx_have_106])
1923 if test $ns_osx_have_106 = no; then
1924 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1929 AC_SUBST(LIBS_GNUSTEP)
1931 INSTALL_ARCH_INDEP_EXTRA=install-etc
1932 ns_self_contained=no
1935 if test "${HAVE_NS}" = yes; then
1936 if test "$with_toolkit_scroll_bars" = "no"; then
1937 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1940 window_system=nextstep
1941 # set up packaging dirs
1942 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1943 ns_self_contained=yes
1944 prefix=${ns_appresdir}
1945 exec_prefix=${ns_appbindir}
1946 dnl This one isn't really used, only archlibdir is.
1947 libexecdir="\${ns_appbindir}/libexec"
1948 archlibdir="\${ns_appbindir}/libexec"
1949 etcdocdir="\${ns_appresdir}/etc"
1950 etcdir="\${ns_appresdir}/etc"
1951 dnl FIXME maybe set datarootdir instead.
1952 dnl That would also get applications, icons, man.
1953 infodir="\${ns_appresdir}/info"
1954 mandir="\${ns_appresdir}/man"
1955 lispdir="\${ns_appresdir}/lisp"
1956 test "$locallisppathset" = no && locallisppath=""
1957 INSTALL_ARCH_INDEP_EXTRA=
1960 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1962 CFLAGS="$tmp_CFLAGS"
1963 CPPFLAGS="$tmp_CPPFLAGS"
1964 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1965 AC_SUBST(ns_self_contained)
1967 AC_SUBST(NS_OBJC_OBJ)
1977 if test "${with_w32}" != no; then
1980 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1981 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1982 cannot be found.])])
1985 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1988 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1993 if test "${opsys}" = "mingw32"; then
1994 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1995 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1996 #include <windows.h>
1997 #include <usp10.h>]],
1998 [[PIMAGE_NT_HEADERS pHeader;
1999 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2000 [emacs_cv_w32api=yes
2003 AC_MSG_RESULT($emacs_cv_w32api)
2004 if test "${emacs_cv_w32api}" = "no"; then
2005 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2016 if test "${HAVE_W32}" = "yes"; then
2017 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2018 if test "$with_toolkit_scroll_bars" = "no"; then
2019 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2021 AC_CHECK_TOOL(WINDRES, [windres],
2022 [AC_MSG_ERROR([No resource compiler found.])])
2023 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2024 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2025 EMACSRES="emacs.res"
2026 case "$canonical" in
2027 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2028 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2030 dnl Construct something of the form "24,4,0,0" with 4 components.
2031 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2033 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2034 AC_SUBST(comma_version)
2035 AC_SUBST(comma_space_version)
2036 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2037 if test "${opsys}" = "cygwin"; then
2038 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2039 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2040 # Tell the linker that emacs.res is an object (which we compile from
2041 # the rc file), not a linker script.
2042 W32_RES_LINK="-Wl,emacs.res"
2044 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2045 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2046 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2047 W32_RES_LINK="\$(EMACSRES)"
2048 CLIENTRES="emacsclient.res"
2049 CLIENTW="emacsclientw\$(EXEEXT)"
2050 FIRSTFILE_OBJ=firstfile.o
2053 LIBS_ECLIENT="-lcomctl32"
2054 LIB_WSOCK32="-lwsock32"
2055 NTLIB="ntlib.$ac_objext"
2056 XARGS_LIMIT="-s 10000"
2062 AC_SUBST(EMACS_MANIFEST)
2065 AC_SUBST(W32_RES_LINK)
2066 AC_SUBST(FIRSTFILE_OBJ)
2069 AC_SUBST(LIBS_ECLIENT)
2070 AC_SUBST(LIB_WSOCK32)
2072 AC_SUBST(XARGS_LIMIT)
2074 if test "${HAVE_W32}" = "yes"; then
2079 ## $window_system is now set to the window system we will
2087 case "${window_system}" in
2092 case "${with_x_toolkit}" in
2093 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2094 motif ) USE_X_TOOLKIT=MOTIF ;;
2096 term_header=gtkutil.h
2097 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2098 dnl USE_X_TOOLKIT is set.
2099 USE_X_TOOLKIT=none ;;
2100 gtk2 ) with_gtk2=yes
2101 term_header=gtkutil.h
2102 USE_X_TOOLKIT=none ;;
2103 gtk3 ) with_gtk3=yes
2104 term_header=gtkutil.h
2105 USE_X_TOOLKIT=none ;;
2106 no ) USE_X_TOOLKIT=none ;;
2107 dnl If user did not say whether to use a toolkit, make this decision later:
2108 dnl use the toolkit if we have gtk, or X11R5 or newer.
2109 * ) USE_X_TOOLKIT=maybe ;;
2113 term_header=nsterm.h
2116 term_header=w32term.h
2120 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2121 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2122 if test "$HAVE_XSERVER" = true ||
2123 test -n "$DISPLAY" ||
2125 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2126 test "$emacs_libX11" != '/usr/lib/libX11.*'
2129 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2130 were found. You should install the relevant development files for X
2131 and for the toolkit you want, such as Gtk+ or Motif. Also make
2132 sure you have development files for image handling, i.e.
2133 tiff, gif, jpeg, png and xpm.
2134 If you are sure you want Emacs compiled without X window support, pass
2140 # Does the opsystem file prohibit the use of the GNU malloc?
2141 # Assume not, until told otherwise.
2145 [whether malloc is Doug Lea style],
2146 [emacs_cv_var_doug_lea_malloc],
2147 [emacs_cv_var_doug_lea_malloc=no
2148 dnl Hooks do not work with address sanitization.
2149 if test "$emacs_cv_sanitize_address" != yes; then
2152 [[#include <malloc.h>
2153 static void hook (void) {}]],
2154 [[malloc_set_state (malloc_get_state ());
2155 __after_morecore_hook = hook;
2156 __malloc_initialize_hook = hook;]])],
2157 [emacs_cv_var_doug_lea_malloc=yes])
2159 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2164 test "$CANNOT_DUMP" = yes ||
2166 ## darwin ld insists on the use of malloc routines in the System framework.
2167 darwin | mingw32 | nacl | sol2-10) ;;
2168 cygwin) hybrid_malloc=yes
2170 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2173 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2174 && test "${UNEXEC_OBJ}" = unexelf.o; then
2180 if test "${system_malloc}" = "yes"; then
2181 AC_DEFINE([SYSTEM_MALLOC], 1,
2182 [Define to 1 to use the system memory allocator, even if it is not
2186 (The GNU allocators don't work with this system configuration.)"
2188 elif test "$hybrid_malloc" = yes; then
2189 AC_DEFINE(HYBRID_MALLOC, 1,
2190 [Define to use gmalloc before dumping and the system malloc after.])
2193 GNU_MALLOC_reason=" (only before dumping)"
2194 GMALLOC_OBJ=gmalloc.o
2197 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2198 VMLIMIT_OBJ=vm-limit.o
2200 AC_CHECK_HEADERS([sys/vlimit.h])
2201 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2204 [[extern char data_start[]; char ch;]],
2205 [[return data_start < &ch;]])],
2206 [emacs_cv_data_start=yes],
2207 [emacs_cv_data_start=no])])
2208 if test $emacs_cv_data_start = yes; then
2209 AC_DEFINE([HAVE_DATA_START], 1,
2210 [Define to 1 if data_start is the address of the start
2211 of the main data segment.])
2214 AC_SUBST([HYBRID_MALLOC])
2215 AC_SUBST(GMALLOC_OBJ)
2216 AC_SUBST(VMLIMIT_OBJ)
2218 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2219 if test "$GNU_MALLOC" = yes ; then
2221 (Using Doug Lea's new malloc from the GNU C Library.)"
2223 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2224 [Define to 1 if the system memory allocator is Doug Lea style,
2225 with malloc hooks and malloc_set_state.])
2227 ## Use mmap directly for allocating larger buffers.
2228 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2229 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2230 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2232 mingw32|gnu*) REL_ALLOC=no ;;
2236 if test x"${REL_ALLOC}" = x; then
2237 REL_ALLOC=${GNU_MALLOC}
2240 use_mmap_for_buffers=no
2242 mingw32) use_mmap_for_buffers=yes ;;
2246 if test $use_mmap_for_buffers = yes; then
2247 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2251 LIBS="$LIBS_SYSTEM $LIBS"
2253 dnl FIXME replace main with a function we actually want from this library.
2254 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2256 dnl Check for the POSIX thread library.
2258 AC_CHECK_HEADERS_ONCE(pthread.h)
2259 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2260 AC_CACHE_CHECK([for pthread library],
2261 [emacs_cv_pthread_lib],
2262 [emacs_cv_pthread_lib=no
2264 for emacs_pthread_lib in 'none needed' -lpthread; do
2265 case $emacs_pthread_lib in
2266 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2270 [[#include <pthread.h>
2272 sigset_t old_mask, new_mask;
2273 void noop (void) {}]],
2274 [[pthread_t th = pthread_self ();
2276 status += pthread_create (&th, 0, 0, 0);
2277 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2278 status += pthread_kill (th, 0);
2279 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2280 || defined DOUG_LEA_MALLOC)
2281 /* Test for pthread_atfork only if gmalloc uses it,
2282 as older-style hosts like MirBSD 10 lack it. */
2283 status += pthread_atfork (noop, noop, noop);
2286 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2288 if test "$emacs_cv_pthread_lib" != no; then
2292 if test "$emacs_cv_pthread_lib" != no; then
2293 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2294 case $emacs_cv_pthread_lib in
2295 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2297 ac_cv_func_pthread_sigmask=yes
2298 # Some systems optimize for single-threaded programs by default, and
2299 # need special flags to disable these optimizations. For example, the
2300 # definition of 'errno' in <errno.h>.
2303 AC_DEFINE([_REENTRANT], 1,
2304 [Define to 1 if your system requires this in multithreaded code.]);;
2306 AC_DEFINE([_THREAD_SAFE], 1,
2307 [Define to 1 if your system requires this in multithreaded code.]);;
2311 AC_SUBST([LIB_PTHREAD])
2313 AC_MSG_CHECKING([for thread support])
2315 if test "$with_threads" = yes; then
2316 if test "$emacs_cv_pthread_lib" != no; then
2317 AC_DEFINE(THREADS_ENABLED, 1,
2318 [Define to 1 if you want elisp thread support.])
2320 elif test "${opsys}" = "mingw32"; then
2321 dnl MinGW can do native Windows threads even without pthreads
2322 AC_DEFINE(THREADS_ENABLED, 1,
2323 [Define to 1 if you want elisp thread support.])
2327 AC_MSG_RESULT([$threads_enabled])
2329 dnl Check for need for bigtoc support on IBM AIX
2333 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2335 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2336 *) gdb_cv_bigtoc=-bbigtoc ;;
2339 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2340 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2345 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2346 # is for the tests that follow. We set them back later on.
2348 REAL_CFLAGS="$CFLAGS"
2349 REAL_CPPFLAGS="$CPPFLAGS"
2352 if test "${HAVE_X11}" = "yes"; then
2353 DEFS="$C_SWITCH_X_SITE $DEFS"
2354 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2356 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2357 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2359 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2360 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2361 # but it's more convenient here to set LD_RUN_PATH since this
2362 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2363 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2364 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2368 if test "${opsys}" = "gnu-linux"; then
2369 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2370 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2371 [[XOpenDisplay ("foo");]])],
2372 [xgnu_linux_first_failure=no],
2373 [xgnu_linux_first_failure=yes])
2374 if test "${xgnu_linux_first_failure}" = "yes"; then
2375 OLD_CPPFLAGS="$CPPFLAGS"
2377 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2378 LIBS="$LIBS -b i486-linuxaout"
2379 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2380 [[XOpenDisplay ("foo");]])],
2381 [xgnu_linux_second_failure=no],
2382 [xgnu_linux_second_failure=yes])
2383 if test "${xgnu_linux_second_failure}" = "yes"; then
2384 # If we get the same failure with -b, there is no use adding -b.
2385 # So leave it out. This plays safe.
2388 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2389 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2392 CPPFLAGS=$OLD_CPPFLAGS
2399 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2400 # header files included from there.
2401 AC_MSG_CHECKING(for Xkb)
2402 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2403 #include <X11/XKBlib.h>]],
2404 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2405 emacs_xkb=yes, emacs_xkb=no)
2406 AC_MSG_RESULT($emacs_xkb)
2407 if test $emacs_xkb = yes; then
2408 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2411 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2412 XScreenNumberOfScreen)
2415 if test "${window_system}" = "x11"; then
2416 AC_MSG_CHECKING(X11 version 6)
2417 AC_CACHE_VAL(emacs_cv_x11_version_6,
2418 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2419 [[#if XlibSpecificationRelease < 6
2422 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2423 if test $emacs_cv_x11_version_6 = yes; then
2424 AC_MSG_RESULT(6 or newer)
2425 AC_DEFINE(HAVE_X11R6, 1,
2426 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2427 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2428 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2432 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2433 [Define if you have usable X11R6-style XIM support.])
2437 AC_MSG_RESULT(before 6)
2442 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2444 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2445 if test "${with_rsvg}" != "no"; then
2446 RSVG_REQUIRED=2.11.0
2447 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2449 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2450 AC_SUBST(RSVG_CFLAGS)
2453 if test $HAVE_RSVG = yes; then
2454 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2455 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2456 # Windows loads librsvg dynamically
2457 if test "${opsys}" = "mingw32"; then
2465 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2466 if test "${with_imagemagick}" != "no"; then
2467 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2468 ## 6.8.2 makes Emacs crash; see Bug#13867.
2469 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2470 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2471 AC_SUBST(IMAGEMAGICK_CFLAGS)
2472 AC_SUBST(IMAGEMAGICK_LIBS)
2474 if test $HAVE_IMAGEMAGICK = yes; then
2475 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2478 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2479 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2480 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2487 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2488 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2489 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2490 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2491 GETADDRINFO_A_LIBS="-lanl"
2492 AC_SUBST(GETADDRINFO_A_LIBS)
2497 gtk_term_header=$term_header
2500 if test "${opsys}" != "mingw32"; then
2501 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2504 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2506 dnl Checks for libraries.
2507 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2508 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2509 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2510 AC_MSG_ERROR($GTK_PKG_ERRORS)
2512 if test "$pkg_check_gtk" = "yes"; then
2513 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2514 GTK_OBJ=emacsgtkfixed.o
2515 gtk_term_header=gtkutil.h
2516 USE_GTK_TOOLKIT="GTK3"
2517 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2518 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2519 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2520 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2521 [Define to 1 to disable Glib deprecation warnings.])
2525 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2529 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2532 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2534 dnl Checks for libraries.
2535 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2536 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2537 if test "$pkg_check_gtk" = "no" &&
2538 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2540 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2542 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2549 if test x"$pkg_check_gtk" = xyes; then
2552 CFLAGS="$CFLAGS $GTK_CFLAGS"
2553 LIBS="$GTK_LIBS $LIBS"
2554 dnl Try to compile a simple GTK program.
2555 AC_MSG_CHECKING([whether GTK compiles])
2559 [[/* Check the Gtk and Glib APIs. */
2560 #include <gtk/gtk.h>
2561 #include <glib-object.h>
2563 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2567 GtkSettings *gs = 0;
2568 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2569 strict C prohibits this. Use gtk_main_iteration to test that the
2570 libraries are there. */
2571 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2572 0, 0, 0, G_CALLBACK (callback), 0))
2573 gtk_main_iteration ();
2576 AC_MSG_RESULT([$GTK_COMPILES])
2577 if test "${GTK_COMPILES}" != "yes"; then
2579 if test "$USE_X_TOOLKIT" != "maybe"; then
2580 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2583 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2585 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2586 GTK_OBJ="gtkutil.o $GTK_OBJ"
2587 term_header=$gtk_term_header
2589 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2590 closing open displays. This is no problem if you just use
2591 one display, but if you use more than one and close one of them
2593 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2601 if test "${HAVE_GTK}" = "yes"; then
2603 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2604 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2605 if test "$with_toolkit_scroll_bars" != no; then
2606 with_toolkit_scroll_bars=yes
2609 dnl Check if we have the old file selection dialog declared and
2610 dnl in the link library. In 2.x it may be in the library,
2611 dnl but not declared if deprecated featured has been selected out.
2612 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2613 HAVE_GTK_FILE_SELECTION=no
2614 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2615 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2616 #include <gtk/gtk.h>])
2617 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2618 AC_CHECK_FUNCS(gtk_file_selection_new)
2621 dnl Same as above for gtk_handle_box.
2622 HAVE_GTK_HANDLE_BOX=no
2623 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2624 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2625 #include <gtk/gtk.h>])
2626 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2627 AC_CHECK_FUNCS(gtk_handle_box_new)
2630 dnl Same as above for gtk_tearoff_menu_item.
2631 HAVE_GTK_TEAROFF_MENU_ITEM=no
2632 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2633 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2634 #include <gtk/gtk.h>])
2635 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2636 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2639 dnl Check for functions introduced in 2.14 and later.
2640 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2641 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2642 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2643 gtk_orientable_set_orientation \
2644 gtk_window_set_has_resize_grip)
2646 term_header=gtkutil.h
2650 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2653 if test "$with_xwidgets" != "no"; then
2654 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2655 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2657 WEBKIT_REQUIRED=2.12
2658 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2659 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2660 HAVE_XWIDGETS=$HAVE_WEBKIT
2661 test $HAVE_XWIDGETS = yes ||
2662 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2664 XWIDGETS_OBJ=xwidget.o
2665 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2667 AC_SUBST(XWIDGETS_OBJ)
2672 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2673 dnl other platforms.
2676 if test "${with_dbus}" = "yes"; then
2677 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2678 if test "$HAVE_DBUS" = yes; then
2679 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2680 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2681 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2684 LIBS="$LIBS $DBUS_LIBS"
2685 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2686 dbus_type_is_valid \
2687 dbus_validate_bus_name \
2688 dbus_validate_path \
2689 dbus_validate_interface \
2690 dbus_validate_member)
2695 AC_SUBST(DBUS_CFLAGS)
2699 dnl GSettings has been tested under GNU/Linux only.
2701 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2702 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2703 if test "$HAVE_GSETTINGS" = "yes"; then
2705 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2707 LIBS="$LIBS $GSETTINGS_LIBS"
2708 AC_MSG_CHECKING([whether GSettings is in gio])
2711 [[/* Check that gsettings really is present. */
2712 #include <glib-object.h>
2713 #include <gio/gio.h>
2716 GSettings *settings;
2717 GVariant *val = g_settings_get_value (settings, "");
2719 [], HAVE_GSETTINGS=no)
2720 AC_MSG_RESULT([$HAVE_GSETTINGS])
2722 if test "$HAVE_GSETTINGS" = "yes"; then
2723 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2724 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2725 SETTINGS_LIBS="$GSETTINGS_LIBS"
2732 dnl GConf has been tested under GNU/Linux only.
2733 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2735 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2736 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2737 if test "$HAVE_GCONF" = yes; then
2738 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2739 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2740 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2741 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2745 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2746 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2747 if test "$HAVE_GOBJECT" = "yes"; then
2748 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2749 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2751 SAVE_CFLAGS="$CFLAGS"
2753 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2754 LIBS="$SETTINGS_LIBS $LIBS"
2755 CFLAGS="$SAVE_CFLAGS"
2758 AC_SUBST(SETTINGS_CFLAGS)
2759 AC_SUBST(SETTINGS_LIBS)
2762 dnl SELinux is available for GNU/Linux only.
2765 if test "${with_selinux}" = "yes"; then
2766 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2767 if test "$HAVE_LIBSELINUX" = yes; then
2768 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2769 LIBSELINUX_LIBS=-lselinux
2772 AC_SUBST(LIBSELINUX_LIBS)
2775 if test "${with_gnutls}" = "yes" ; then
2776 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2777 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2778 if test "${HAVE_GNUTLS}" = "yes"; then
2779 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2780 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2781 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2784 # Windows loads GnuTLS dynamically
2785 if test "${opsys}" = "mingw32"; then
2790 AC_SUBST(LIBGNUTLS_LIBS)
2791 AC_SUBST(LIBGNUTLS_CFLAGS)
2794 if test "${with_libsystemd}" = "yes" ; then
2795 dnl This code has been tested with libsystemd 222 and later.
2796 dnl FIXME: Find the earliest version number for which Emacs should work,
2797 dnl and change '222' to that number.
2798 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2799 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2800 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2801 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2805 AC_SUBST(LIBSYSTEMD_LIBS)
2806 AC_SUBST(LIBSYSTEMD_CFLAGS)
2811 dnl MS Windows native file monitor is available for mingw32 only.
2812 case $with_file_notification,$opsys in
2814 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2815 this is only supported on MS-Windows native and MinGW32 builds.
2816 Consider using gfile instead.])
2818 w32,* | yes,mingw32)
2819 AC_CHECK_HEADER(windows.h)
2820 if test "$ac_cv_header_windows_h" = yes ; then
2821 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2822 NOTIFY_OBJ=w32notify.o
2823 NOTIFY_SUMMARY="yes (w32)"
2827 dnl inotify is available only on GNU/Linux.
2828 case $with_file_notification,$NOTIFY_OBJ in
2830 AC_CHECK_HEADER(sys/inotify.h)
2831 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2832 AC_CHECK_FUNC(inotify_init1)
2833 if test "$ac_cv_func_inotify_init1" = yes; then
2834 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2835 NOTIFY_OBJ=inotify.o
2836 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2841 dnl kqueue is available on BSD-like systems.
2842 case $with_file_notification,$NOTIFY_OBJ in
2844 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2845 if test "$HAVE_KQUEUE" = "yes"; then
2846 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2847 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2848 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2849 NOTIFY_LIBS=$KQUEUE_LIBS
2851 NOTIFY_SUMMARY="yes -lkqueue"
2853 AC_SEARCH_LIBS(kqueue, [])
2854 if test "$ac_cv_search_kqueue" != no; then
2855 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2857 NOTIFY_SUMMARY="yes (kqueue)"
2862 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2863 dnl has been added in glib 2.24. It has been tested under
2865 case $with_file_notification,$NOTIFY_OBJ in
2867 if test "${HAVE_NS}" = yes; then
2868 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2869 Consider kqueue instead.])
2871 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2872 if test "$HAVE_GFILENOTIFY" = "yes"; then
2873 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2874 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2875 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2876 NOTIFY_OBJ=gfilenotify.o
2877 NOTIFY_SUMMARY="yes -lgio (gfile)"
2882 case $with_file_notification,$NOTIFY_OBJ in
2883 yes,* | no,* | *,?*) ;;
2884 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2887 if test -n "$NOTIFY_OBJ"; then
2888 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2890 AC_SUBST(NOTIFY_CFLAGS)
2891 AC_SUBST(NOTIFY_LIBS)
2892 AC_SUBST(NOTIFY_OBJ)
2894 dnl Do not put whitespace before the #include statements below.
2895 dnl Older compilers (eg sunos4 cc) choke on it.
2898 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2899 if test "$with_xaw3d" != no; then
2900 AC_CACHE_VAL(emacs_cv_xaw3d,
2901 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2902 #include <X11/Intrinsic.h>
2903 #include <X11/Xaw3d/Simple.h>]],
2905 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2906 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2907 emacs_cv_xaw3d=no)])
2911 if test $emacs_cv_xaw3d = yes; then
2912 AC_MSG_CHECKING(for xaw3d)
2913 AC_MSG_RESULT([yes; using Lucid toolkit])
2917 AC_DEFINE(HAVE_XAW3D, 1,
2918 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2920 AC_MSG_CHECKING(for xaw3d)
2922 AC_MSG_CHECKING(for libXaw)
2923 AC_CACHE_VAL(emacs_cv_xaw,
2924 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2925 #include <X11/Intrinsic.h>
2926 #include <X11/Xaw/Simple.h>]],
2930 if test $emacs_cv_xaw = yes; then
2931 AC_MSG_RESULT([yes; using Lucid toolkit])
2934 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2935 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2937 AC_MSG_ERROR([No X toolkit could be found.
2938 If you are sure you want Emacs compiled without an X toolkit, pass
2940 to configure. Otherwise, install the development libraries for the toolkit
2941 that you want to use (e.g. Gtk+) and re-run configure.])
2946 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2950 if test "${USE_X_TOOLKIT}" != "none"; then
2951 AC_MSG_CHECKING(X11 toolkit version)
2952 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2953 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2954 [[#if XtSpecificationRelease < 6
2957 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2958 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2959 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2960 AC_MSG_RESULT(6 or newer)
2961 AC_DEFINE(HAVE_X11XTR6, 1,
2962 [Define to 1 if you have the X11R6 or newer version of Xt.])
2963 LIBXTR6="-lSM -lICE"
2965 ## Use libw.a along with X11R6 Xt.
2966 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2969 AC_MSG_RESULT(before 6)
2972 dnl If using toolkit, check whether libXmu.a exists.
2973 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2975 if test x$HAVE_X11XTR6 = xyes; then
2976 OTHERLIBS='-lXt -lSM -lICE'
2980 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2981 if test "X$LIBS" != "X$OLDLIBS"; then
2982 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2985 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2991 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2992 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2993 if test -d /usr/include/openmotif; then
2994 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2995 emacs_cv_openmotif=yes
2996 case "$canonical" in
2997 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2998 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3001 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3004 emacs_cv_openmotif=no
3006 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3007 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3008 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3011 Motif version prior to 2.1.
3013 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3014 if test $emacs_cv_motif_version_2_1 = yes; then
3015 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3016 if test x$emacs_cv_openmotif = xyes; then
3017 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3020 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3021 # We put this in CFLAGS temporarily to precede other -I options
3022 # that might be in CFLAGS temporarily.
3023 # We put this in CPPFLAGS where it precedes the other -I options.
3024 OLD_CPPFLAGS=$CPPFLAGS
3026 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3027 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3028 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3030 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3031 if test $emacs_cv_lesstif = yes; then
3032 # Make sure this -I option remains in CPPFLAGS after it is set
3033 # back to REAL_CPPFLAGS.
3034 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3035 # have those other -I options anyway. Ultimately, having this
3036 # directory ultimately in CPPFLAGS will be enough.
3037 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3038 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3041 CPPFLAGS=$OLD_CPPFLAGS
3044 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3045 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3048 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3049 dnl using Motif or Xaw3d is available, and unless
3050 dnl --with-toolkit-scroll-bars=no was specified.
3052 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3053 [Define to 1 if we should use toolkit scroll bars.])dnl
3054 USE_TOOLKIT_SCROLL_BARS=no
3055 if test "${with_toolkit_scroll_bars}" != "no"; then
3056 if test "${USE_X_TOOLKIT}" != "none"; then
3057 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3058 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3060 USE_TOOLKIT_SCROLL_BARS=yes
3061 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3062 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3063 USE_TOOLKIT_SCROLL_BARS=yes
3065 elif test "${HAVE_GTK}" = "yes"; then
3066 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3067 USE_TOOLKIT_SCROLL_BARS=yes
3068 elif test "${HAVE_NS}" = "yes"; then
3069 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3070 USE_TOOLKIT_SCROLL_BARS=yes
3071 elif test "${HAVE_W32}" = "yes"; then
3072 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3073 USE_TOOLKIT_SCROLL_BARS=yes
3077 dnl See if XIM is available.
3078 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3079 #include <X11/Xlib.h>
3080 #include <X11/Xresource.h>]],
3081 [[XIMProc callback;]])],
3083 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3086 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3088 if test "${with_xim}" != "no"; then
3089 AC_DEFINE(USE_XIM, 1,
3090 [Define to 1 if we should use XIM, if it is available.])
3094 if test "${HAVE_XIM}" != "no"; then
3096 if test "$GCC" = yes; then
3097 CFLAGS="$CFLAGS --pedantic-errors"
3099 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3100 #include <X11/Xlib.h>
3101 #include <X11/Xresource.h>]],
3107 XPointer *client_data;
3109 /* If we're not using GCC, it's probably not XFree86, and this is
3110 probably right, but we can't use something like --pedantic-errors. */
3111 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3112 char*, XIMProc, XPointer*);
3114 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3116 [emacs_cv_arg6_star=yes])
3117 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3118 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3119 either XPointer or XPointer*.])dnl
3120 if test "$emacs_cv_arg6_star" = yes; then
3121 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3123 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3128 ### Start of font-backend (under any platform) section.
3129 # (nothing here yet -- this is a placeholder)
3130 ### End of font-backend (under any platform) section.
3132 ### Start of font-backend (under X11) section.
3133 if test "${HAVE_X11}" = "yes"; then
3134 ## Use -lXft if available, unless '--with-xft=no'.
3136 if test "x${with_x}" = "xno"; then
3140 if test "$with_xft" != no; then
3141 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3142 with_xft=$HAVE_FONTCONFIG
3145 if test "x${with_xft}" != "xno"; then
3147 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3148 ## Because xftfont.c uses XRenderQueryExtension, we also
3149 ## need to link to -lXrender.
3151 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3152 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3153 OLD_CPPFLAGS="$CPPFLAGS"
3154 OLD_CFLAGS="$CFLAGS"
3156 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3157 CFLAGS="$CFLAGS $XFT_CFLAGS"
3158 XFT_LIBS="-lXrender $XFT_LIBS"
3159 LIBS="$XFT_LIBS $LIBS"
3160 AC_CHECK_HEADER(X11/Xft/Xft.h,
3161 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3162 [[#include <X11/X.h>]])
3164 if test "${HAVE_XFT}" = "yes"; then
3165 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3167 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3168 fi # "${HAVE_XFT}" = "yes"
3169 CPPFLAGS=$OLD_CPPFLAGS
3172 fi # "$HAVE_XFT" != no
3173 fi # "x${with_xft}" != "xno"
3175 ## We used to allow building with FreeType and without Xft.
3176 ## However, the ftx font backend driver is not in good shape.
3177 if test "$HAVE_XFT" != "yes"; then
3178 dnl For the "Does Emacs use" message at the end.
3182 dnl Strict linkers fail with
3183 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3184 dnl if -lfreetype is not specified.
3185 dnl The following is needed to set FREETYPE_LIBS.
3186 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3188 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3192 if test "${HAVE_FREETYPE}" = "yes"; then
3193 AC_DEFINE(HAVE_FREETYPE, 1,
3194 [Define to 1 if using the freetype and fontconfig libraries.])
3195 if test "${with_libotf}" != "no"; then
3196 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3197 if test "$HAVE_LIBOTF" = "yes"; then
3198 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3199 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3200 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3201 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3202 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3203 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3204 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3208 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3209 dnl Does the new font backend require it, or can it work without it?
3213 if test "${HAVE_LIBOTF}" = yes; then
3214 if test "${with_m17n_flt}" != "no"; then
3215 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3216 if test "$HAVE_M17N_FLT" = "yes"; then
3217 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3228 ### End of font-backend (under X11) section.
3230 AC_SUBST(FREETYPE_CFLAGS)
3231 AC_SUBST(FREETYPE_LIBS)
3232 AC_SUBST(FONTCONFIG_CFLAGS)
3233 AC_SUBST(FONTCONFIG_LIBS)
3234 AC_SUBST(LIBOTF_CFLAGS)
3235 AC_SUBST(LIBOTF_LIBS)
3236 AC_SUBST(M17N_FLT_CFLAGS)
3237 AC_SUBST(M17N_FLT_LIBS)
3240 if test "${HAVE_X11}" = "yes"; then
3241 if test "${with_cairo}" != "no"; then
3242 CAIRO_REQUIRED=1.12.0
3243 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3244 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3245 if test $HAVE_CAIRO = yes; then
3246 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3248 AC_MSG_ERROR([cairo requested but not found.])
3251 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3252 LIBS="$LIBS $CAIRO_LIBS"
3253 AC_SUBST(CAIRO_CFLAGS)
3254 AC_SUBST(CAIRO_LIBS)
3258 if test "${HAVE_X11}" = "yes"; then
3259 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3260 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3261 if test "${HAVE_XCB}" = "yes"; then
3262 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3263 if test "${HAVE_X11_XCB}" = "yes"; then
3264 AC_DEFINE(USE_XCB, 1,
3265 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3266 X11/XCB programming.])
3267 XCB_LIBS="-lX11-xcb -lxcb"
3273 ### Use -lXpm if available, unless '--with-xpm=no'.
3274 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3275 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3276 ### we need to set LDFLAGS accordingly.
3279 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3280 if test "${with_xpm}" != "no"; then
3281 SAVE_LDFLAGS="$LDFLAGS"
3282 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3283 AC_CHECK_HEADER(noX/xpm.h,
3284 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3285 if test "${HAVE_XPM}" = "yes"; then
3286 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3287 AC_EGREP_CPP(no_return_alloc_pixels,
3288 [#include "noX/xpm.h"
3289 #ifndef XpmReturnAllocPixels
3290 no_return_alloc_pixels
3292 ], HAVE_XPM=no, HAVE_XPM=yes)
3294 if test "${HAVE_XPM}" = "yes"; then
3298 LDFLAGS="$SAVE_LDFLAGS"
3303 if test "${HAVE_XPM}" = "yes"; then
3304 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3309 if test "${HAVE_X11}" = "yes"; then
3310 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3311 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3313 if test "${with_xpm}" != "no"; then
3314 AC_CHECK_HEADER(X11/xpm.h,
3315 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3316 if test "${HAVE_XPM}" = "yes"; then
3317 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3318 AC_EGREP_CPP(no_return_alloc_pixels,
3319 [#include "X11/xpm.h"
3320 #ifndef XpmReturnAllocPixels
3321 no_return_alloc_pixels
3323 ], HAVE_XPM=no, HAVE_XPM=yes)
3325 if test "${HAVE_XPM}" = "yes"; then
3333 if test "${HAVE_XPM}" = "yes"; then
3334 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3336 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3337 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3342 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3343 ### slightly different requirements wrt image libraries (it doesn't
3344 ### use -lXpm because it loads the xpm shared library dynamically at
3346 if test "${opsys}" = "mingw32"; then
3347 if test "${with_xpm}" != "no"; then
3348 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3352 if test "${HAVE_XPM}" = "yes"; then
3353 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3359 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3362 if test "${with_jpeg}" != "no"; then
3363 AC_CACHE_CHECK([for jpeglib 6b or later],
3366 for emacs_cv_jpeglib in yes -ljpeg no; do
3367 case $emacs_cv_jpeglib in
3370 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3374 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3375 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3376 #include <jpeglib.h>
3378 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3379 struct jpeg_decompress_struct cinfo;
3382 jpeg_create_decompress (&cinfo);
3383 WARNMS (&cinfo, JWRN_JPEG_EOF);
3384 jpeg_destroy_decompress (&cinfo);
3386 [emacs_link_ok=yes],
3389 test $emacs_link_ok = yes && break
3391 if test "$emacs_cv_jpeglib" != no; then
3393 AC_DEFINE([HAVE_JPEG], 1,
3394 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3395 ### mingw32 doesn't use -ljpeg, since it loads the library
3396 ### dynamically when needed, and doesn't want a run-time
3397 ### dependency on the jpeglib DLL.
3398 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3399 && LIBJPEG=$emacs_cv_jpeglib
3406 if test "${with_zlib}" != "no"; then
3408 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3410 case $ac_cv_search_inflateEnd in
3411 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3414 if test "${HAVE_ZLIB}" = "yes"; then
3415 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3416 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3417 if test "${opsys}" = "mingw32"; then
3423 ### Dynamic modules support
3428 if test "${with_modules}" != "no"; then
3432 MODULES_SUFFIX=".so"
3436 MODULES_SUFFIX=".dll"
3440 MODULES_SUFFIX=".so"
3444 # BSD systems have dlopen in libc.
3445 AC_CHECK_FUNC([dlopen],
3446 [MODULES_SUFFIX=".so"
3451 if test "${HAVE_MODULES}" = no; then
3452 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3455 LIBS="$LIBS $LIBMODULES"
3456 AC_CHECK_FUNCS([dladdr dlfunc])
3461 if test "${HAVE_MODULES}" = yes; then
3462 MODULES_OBJ="dynlib.o emacs-module.o"
3463 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3464 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3465 [System extension for dynamic libraries])
3467 AC_SUBST(MODULES_OBJ)
3468 AC_SUBST(LIBMODULES)
3470 ### Use -lpng if available, unless '--with-png=no'.
3474 if test "${NS_IMPL_COCOA}" = yes; then
3476 elif test "${with_png}" != no; then
3477 # mingw32 loads the library dynamically.
3478 if test "$opsys" = mingw32; then
3479 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3480 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3481 AC_MSG_CHECKING([for png])
3482 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3483 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3484 # libpng-config does not work; configure by hand.
3485 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3486 # in /usr/include/libpng.
3487 if test -r /usr/include/libpng/png.h &&
3488 test ! -r /usr/include/png.h; then
3489 png_cflags=-I/usr/include/libpng
3497 CFLAGS="$CFLAGS $png_cflags"
3498 LIBS="$png_ldflags -lz -lm $LIBS"
3500 [AC_LANG_PROGRAM([[#include <png.h>]],
3501 [[return !png_get_channels (0, 0);]])],
3503 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3505 # $LIBPNG requires explicit -lz in some cases.
3506 # We don't know what those cases are, exactly, so play it safe and
3507 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3508 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3509 LIBPNG="$LIBPNG -lz"
3513 AC_MSG_RESULT([$HAVE_PNG])
3516 if test $HAVE_PNG = yes; then
3517 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3520 CFLAGS="$CFLAGS $PNG_CFLAGS"
3521 AC_CHECK_DECL([png_longjmp],
3523 [AC_DEFINE([PNG_DEPSTRUCT], [],
3524 [Define to empty to suppress deprecation warnings when building
3525 with --enable-gcc-warnings and with libpng versions before 1.5,
3526 which lack png_longjmp.])],
3532 AC_SUBST(PNG_CFLAGS)
3534 ### Use -ltiff if available, unless '--with-tiff=no'.
3535 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3538 if test "${opsys}" = "mingw32"; then
3539 if test "${with_tiff}" != "no"; then
3540 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3542 if test "${HAVE_TIFF}" = "yes"; then
3543 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3545 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3546 if test "${with_tiff}" != "no"; then
3547 AC_CHECK_HEADER(tiffio.h,
3549 # At least one tiff package requires the jpeg library.
3550 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3551 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3554 if test "${HAVE_TIFF}" = "yes"; then
3555 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3556 dnl FIXME -lz -lm, as per libpng?
3562 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3563 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3566 if test "${opsys}" = "mingw32"; then
3567 if test "${with_gif}" != "no"; then
3568 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3570 if test "${HAVE_GIF}" = "yes"; then
3571 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3573 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3574 || test "${HAVE_W32}" = "yes"; then
3575 AC_CHECK_HEADER(gif_lib.h,
3576 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3577 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3578 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3579 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3581 if test "$HAVE_GIF" = yes; then
3583 elif test "$HAVE_GIF" = maybe; then
3584 # If gif_lib.h but no libgif, try libungif.
3585 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3586 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3589 if test "${HAVE_GIF}" = "yes"; then
3590 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3595 dnl Check for required libraries.
3598 if test "${HAVE_X11}" = "yes"; then
3599 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3600 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3601 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3602 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3603 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3604 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3605 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3606 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3607 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3608 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3610 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3611 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3612 if test "X${MISSING}" != X; then
3613 AC_MSG_ERROR([The following required libraries were not found:
3615 Maybe some development libraries/packages are missing?
3616 If you don't want to link with them give
3618 as options to configure])
3621 ### Use -lgpm if available, unless '--with-gpm=no'.
3624 if test "${with_gpm}" != "no"; then
3625 AC_CHECK_HEADER(gpm.h,
3626 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3628 if test "${HAVE_GPM}" = "yes"; then
3629 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3635 dnl Check for malloc/malloc.h on darwin
3636 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3639 ### Use NeXTstep API to implement GUI.
3640 if test "${HAVE_NS}" = "yes"; then
3641 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3642 if test "${NS_IMPL_COCOA}" = "yes"; then
3643 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3645 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3646 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3647 if test $NS_GNUSTEP_CONFIG != yes; then
3648 # See also .m.o rule in src/Makefile.in. */
3649 # FIXME: are all these flags really needed? Document here why. */
3650 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3651 ## Extra CFLAGS applied to src/*.m files.
3652 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3658 ### Use session management (-lSM -lICE) if available
3661 if test "${HAVE_X11}" = "yes"; then
3662 AC_CHECK_HEADER(X11/SM/SMlib.h,
3663 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3665 if test "${HAVE_X_SM}" = "yes"; then
3666 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3672 ### Use XRandr (-lXrandr) if available
3674 if test "${HAVE_X11}" = "yes"; then
3675 XRANDR_REQUIRED=1.2.2
3676 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3677 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3678 if test $HAVE_XRANDR = no; then
3679 # Test old way in case pkg-config doesn't have it (older machines).
3680 # Include Xrender.h by hand to work around bug in older Xrandr.h
3681 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3682 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3683 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3684 [], [AC_INCLUDES_DEFAULT
3685 #include <X11/extensions/Xrender.h>])
3686 if test $HAVE_XRANDR = yes; then
3687 XRANDR_LIBS=-lXrandr
3690 if test $HAVE_XRANDR = yes; then
3691 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3694 AC_SUBST(XRANDR_CFLAGS)
3695 AC_SUBST(XRANDR_LIBS)
3697 ### Use Xinerama (-lXinerama) if available
3699 if test "${HAVE_X11}" = "yes"; then
3700 XINERAMA_REQUIRED=1.0.2
3701 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3702 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3703 if test $HAVE_XINERAMA = no; then
3704 # Test old way in case pkg-config doesn't have it (older machines).
3705 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3706 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3707 if test $HAVE_XINERAMA = yes; then
3708 XINERAMA_LIBS=-lXinerama
3711 if test $HAVE_XINERAMA = yes; then
3712 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3715 AC_SUBST(XINERAMA_CFLAGS)
3716 AC_SUBST(XINERAMA_LIBS)
3718 ### Use Xfixes (-lXfixes) if available
3720 if test "${HAVE_X11}" = "yes"; then
3721 XFIXES_REQUIRED=4.0.0
3722 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3723 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3724 if test $HAVE_XFIXES = no; then
3725 # Test old way in case pkg-config doesn't have it (older machines).
3726 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3727 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3728 if test $HAVE_XFIXES = yes; then
3729 XFIXES_LIBS=-lXfixes
3732 if test $HAVE_XFIXES = yes; then
3733 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3736 AC_SUBST(XFIXES_CFLAGS)
3737 AC_SUBST(XFIXES_LIBS)
3739 ### Use Xdbe (-lXdbe) if available
3741 if test "${HAVE_X11}" = "yes"; then
3742 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3743 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3745 [#include <X11/Xlib.h>
3747 if test $HAVE_XDBE = yes; then
3750 if test $HAVE_XDBE = yes; then
3751 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3754 AC_SUBST(XDBE_CFLAGS)
3757 ### Use libxml (-lxml2) if available
3758 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3760 if test "${with_xml2}" != "no"; then
3761 ### I'm not sure what the version number should be, so I just guessed.
3762 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3763 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3764 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3765 SAVE_CPPFLAGS="$CPPFLAGS"
3766 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3767 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3768 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3770 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3774 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3775 AC_CHECK_HEADER(libxml/HTMLparser.h,
3776 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3777 [#include <libxml/HTMLparser.h>])])
3778 CPPFLAGS="$SAVE_CPPFLAGS"
3779 if test "${HAVE_LIBXML2}" = "yes"; then
3780 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3781 LIBXML2_LIBS="-lxml2"
3784 if test "${HAVE_LIBXML2}" = "yes"; then
3785 if test "${opsys}" != "mingw32"; then
3786 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3791 if test "${HAVE_LIBXML2}" = "yes"; then
3792 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3799 AC_SUBST(LIBXML2_LIBS)
3800 AC_SUBST(LIBXML2_CFLAGS)
3804 if test ! "$with_mailutils"; then
3805 # Check for mail-locking functions in a "mail" library. Probably this should
3806 # have the same check as for liblockfile below.
3807 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3808 if test $have_mail = yes; then
3810 AC_DEFINE([HAVE_LIBMAIL], [1],
3811 [Define to 1 if you have the 'mail' library (-lmail).])
3814 LIBS="$LIBS_MAIL $LIBS"
3815 AC_CHECK_FUNCS([touchlock])
3818 dnl Debian, at least:
3819 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3820 if test $have_lockfile = yes; then
3821 LIBS_MAIL=-llockfile
3822 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3823 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3825 # If we have the shared liblockfile, assume we must use it for mail
3826 # locking (e.g. Debian). If we couldn't link against liblockfile
3827 # (no liblockfile.a installed), ensure that we don't need to.
3828 dnl This works for files generally, not just executables.
3829 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3830 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3831 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3832 if test "$ac_cv_prog_liblockfile" = yes; then
3833 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3834 This probably means that movemail could lose mail.
3835 There may be a 'development' package to install containing liblockfile.])
3838 AC_CHECK_HEADERS([maillock.h])
3840 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3841 ## interlock access to the mail spool. The alternative is a lock file named
3842 ## /usr/spool/mail/$USER.lock.
3845 aix4-2) mail_lock="lockf" ;;
3847 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3849 ## On GNU/Linux systems, both methods are used by various mail programs.
3850 ## I assume most people are using newer mailers that have heard of flock.
3851 ## Change this if you need to.
3852 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3853 ## configure gets the right answers, and that means *NOT* using flock.
3854 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3855 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3856 ## Debian maintainer hasn't provided a clean fix for Emacs.
3857 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3858 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3859 ## correct logic. -- fx
3860 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3861 ## liblockfile is a Free Software replacement for libmail, used on
3862 ## Debian systems and elsewhere. -rfr.
3865 if test $have_mail = yes || test $have_lockfile = yes; then
3866 test $ac_cv_header_maillock_h = yes && mail_lock=no
3870 mail_lock="none-needed" ;;
3874 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3875 [Define if the mailer uses flock to interlock the mail spool.]);;
3877 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3878 [Define if the mailer uses lockf to interlock the mail spool.]);;
3882 *) BLESSMAIL_TARGET="need-blessmail" ;;
3885 AC_SUBST([BLESSMAIL_TARGET])
3886 AC_SUBST([LIBS_MAIL])
3889 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3890 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3891 getrusage get_current_dir_name \
3892 lrand48 random rint trunc \
3893 select getpagesize setlocale newlocale \
3894 getrlimit setrlimit shutdown \
3895 pthread_sigmask strsignal setitimer \
3896 sendto recvfrom getsockname getifaddrs freeifaddrs \
3898 getpwent endpwent getgrent endgrent \
3899 cfmakeraw cfsetspeed __executable_start log2 prctl)
3902 dnl No need to check for posix_memalign if aligned_alloc works.
3903 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3904 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3906 dnl Cannot use AC_CHECK_FUNCS
3907 AC_CACHE_CHECK([for __builtin_unwind_init],
3908 emacs_cv_func___builtin_unwind_init,
3909 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3910 emacs_cv_func___builtin_unwind_init=yes,
3911 emacs_cv_func___builtin_unwind_init=no)])
3912 if test $emacs_cv_func___builtin_unwind_init = yes; then
3913 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3914 [Define to 1 if you have the '__builtin_unwind_init' function.])
3917 AC_CHECK_HEADERS_ONCE(sys/un.h)
3922 AC_CHECK_FUNCS(grantpt)
3924 # PTY-related GNU extensions.
3925 AC_CHECK_FUNCS(getpt posix_openpt)
3927 # Check this now, so that we will NOT find the above functions in ncurses.
3928 # That is because we have not set up to link ncurses in lib-src.
3929 # It's better to believe a function is not available
3930 # than to expect to find it in ncurses.
3931 # Also we need tputs and friends to be able to build at all.
3932 AC_MSG_CHECKING([for library containing tputs])
3933 # Run a test program that contains a call to tputs, a call that is
3934 # never executed. This tests whether a pre-'main' dynamic linker
3935 # works with the library. It's too much trouble to actually call
3936 # tputs in the test program, due to portability hassles. When
3937 # cross-compiling, assume the test program will run if it links.
3938 AC_DEFUN([tputs_link_source], [
3940 [[extern void tputs (const char *, int, int (*)(int));
3941 int main (int argc, char **argv)
3944 tputs (argv[0], 0, 0);
3948 if test "${opsys}" = "mingw32"; then
3951 # Maybe curses should be tried earlier?
3952 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3953 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3955 if test -z "$tputs_library"; then
3959 LIBS_TERMCAP=-l$tputs_library
3961 LIBS="$LIBS_TERMCAP $LIBS"
3963 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3964 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3966 if test "X$msg" != Xno; then
3971 AC_MSG_RESULT([$msg])
3972 if test "X$msg" = Xno; then
3973 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3974 The following libraries were tried (in order):
3975 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3976 Please try installing whichever of these libraries is most appropriate
3977 for your system, together with its header files.
3978 For example, a libncurses-dev(el) or similar package.])
3981 ## Use termcap instead of terminfo?
3982 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3984 ## FIXME? In the cases below where we unconditionally set
3985 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3986 ## if that was found above to have tputs.
3987 ## Should we use the gnu* logic everywhere?
3989 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3990 ## The ncurses library has been moved out of the System framework in
3991 ## Mac OS X 10.2. So if configure detects it, set the command-line
3992 ## option to use it.
3993 darwin) LIBS_TERMCAP="-lncurses" ;;
3995 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3998 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3999 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4000 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4001 [[#if __FreeBSD_version < 400000
4004 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4006 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4008 if test $emacs_cv_freebsd_terminfo = yes; then
4009 LIBS_TERMCAP="-lncurses"
4012 LIBS_TERMCAP="-ltermcap"
4022 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4024 LIBS_TERMCAP="-ltermcap"
4028 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4030 ## hpux: Make sure we get select from libc rather than from libcurses
4031 ## because libcurses on HPUX 10.10 has a broken version of select.
4032 ## We used to use -lc -lcurses, but this may be cleaner.
4033 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4034 # set that way, now it uses the default). Isn't this a contradiction?
4035 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4039 TERMCAP_OBJ=tparam.o
4040 if test $TERMINFO = yes; then
4041 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4042 TERMCAP_OBJ=terminfo.o
4044 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4045 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4047 AC_SUBST(LIBS_TERMCAP)
4048 AC_SUBST(TERMCAP_OBJ)
4050 # GNU/Linux-specific timer functions.
4051 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4053 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4055 [[timerfd_create (CLOCK_REALTIME,
4056 TFD_CLOEXEC | TFD_NONBLOCK);
4057 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4058 [emacs_cv_have_timerfd=yes],
4059 [emacs_cv_have_timerfd=no])])
4060 if test "$emacs_cv_have_timerfd" = yes; then
4061 AC_DEFINE([HAVE_TIMERFD], 1,
4062 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4065 # Alternate stack for signal handlers.
4066 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4067 [emacs_cv_alternate_stack],
4069 [AC_LANG_PROGRAM([[#include <signal.h>
4072 struct sigaction sa;
4073 ss.ss_sp = malloc (SIGSTKSZ);
4074 ss.ss_size = SIGSTKSZ;
4075 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4076 sigaltstack (&ss, 0);
4077 sigaction (SIGSEGV, &sa, 0);]])],
4078 [emacs_cv_alternate_stack=yes],
4079 [emacs_cv_alternate_stack=no])])
4081 # Do we need the Hesiod library to provide the support routines?
4082 dnl FIXME? Should we be skipping this on Darwin too?
4085 if test "$with_hesiod" != no ; then
4086 # Don't set $LIBS here -- see comments above. FIXME which comments?
4088 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4089 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4090 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4091 if test "$resolv" = yes ; then
4097 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4098 hesiod=yes, :, $RESOLVLIB)])
4100 if test x"$hesiod" = xyes; then
4102 LIBRESOLV=$RESOLVLIB
4108 # These tell us which Kerberos-related libraries to use.
4115 if test "${with_kerberos}" != no; then
4117 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4118 if test $have_com_err = yes; then
4119 COM_ERRLIB=-lcom_err
4120 LIBS="$COM_ERRLIB $LIBS"
4122 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4123 if test $have_crypto = yes; then
4125 LIBS="$CRYPTOLIB $LIBS"
4127 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4128 if test $have_k5crypto = yes; then
4129 CRYPTOLIB=-lk5crypto
4130 LIBS="$CRYPTOLIB $LIBS"
4132 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4133 if test $have_krb5=yes; then
4135 LIBS="$KRB5LIB $LIBS"
4137 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4138 if test "${with_kerberos5}" = no; then
4139 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4140 if test $have_des425 = yes; then
4142 LIBS="$DESLIB $LIBS"
4144 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4145 if test $have_des = yes; then
4147 LIBS="$DESLIB $LIBS"
4150 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4151 if test $have_krb4 = yes; then
4153 LIBS="$KRB4LIB $LIBS"
4155 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4156 if test $have_krb = yes; then
4158 LIBS="$KRB4LIB $LIBS"
4163 if test "${with_kerberos5}" != no; then
4164 AC_CHECK_HEADERS(krb5.h,
4165 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4166 [#include <krb5.h>])])
4168 AC_CHECK_HEADERS(krb.h,,
4169 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4170 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4172 AC_CHECK_HEADERS(com_err.h)
4176 AC_SUBST(COM_ERRLIB)
4182 AC_CHECK_HEADERS(valgrind/valgrind.h)
4184 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4186 AC_CHECK_FUNCS_ONCE([sbrk tzset])
4189 AC_CHECK_FUNC(socket, , ok_so_far=no)
4190 if test $ok_so_far = yes; then
4191 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4193 if test $ok_so_far = yes; then
4194 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4196 if test $ok_so_far = yes; then
4197 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4198 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4199 [Define to 1 if you have inet sockets.])
4204 AC_CHECK_FUNCS(snprintf)
4206 dnl Check for glib. This differs from other library checks in that
4207 dnl Emacs need not link to glib unless some other library is already
4208 dnl linking to glib. Although glib provides no facilities that Emacs
4209 dnl needs for its own purposes, when glib is present Emacs needs to
4210 dnl use primitives like g_main_context_query to avoid clashing with
4211 dnl glib at a low level.
4213 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4217 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4218 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4219 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4220 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4221 AC_MSG_CHECKING([whether GLib is linked in])
4222 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4225 [[g_print ("Hello world");]])],
4228 AC_MSG_RESULT([$links_glib])
4229 if test "${links_glib}" = "yes"; then
4230 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4231 if test "$HAVE_NS" = no;then
4239 dnl Adapted from Haible's version.
4240 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4241 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4242 [[char* cs = nl_langinfo(CODESET);]])],
4243 emacs_cv_langinfo_codeset=yes,
4244 emacs_cv_langinfo_codeset=no)
4246 if test $emacs_cv_langinfo_codeset = yes; then
4247 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4248 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4253 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4254 dnl how the tty code is related to POSIX and/or other versions of termios.
4255 dnl The following looks like a useful start.
4257 dnl AC_SYS_POSIX_TERMIOS
4258 dnl if test $ac_cv_sys_posix_termios = yes; then
4259 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4260 dnl and macros for terminal control.])
4261 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4264 dnl Turned on June 1996 supposing nobody will mind it.
4265 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4266 if test "${opsys}" != "mingw32"; then
4267 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4268 in the full name stands for the login id.])
4271 dnl Everybody supports this, except MS.
4272 dnl Seems like the kind of thing we should be testing for, though.
4273 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4274 if test "${opsys}" != "mingw32"; then
4275 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4278 dnl Everybody supports this, except MS-DOS.
4279 dnl Seems like the kind of thing we should be testing for, though.
4280 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4281 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4282 4.2-compatible sockets.])
4284 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4286 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4287 a null file, or a data sink.])
4288 if test "${opsys}" = "mingw32"; then
4289 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4291 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4294 if test "${opsys}" = "mingw32"; then
4299 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4300 dnl This is for MinGW, and is used in test/Makefile.in.
4301 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4302 dnl decides that a command-line argument to be passed to a MinGW program
4303 dnl is a PATH-style list of directories. But that heuristics plays it
4304 dnl safe, and only does the replacement when it is _absolutely_ sure it
4305 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4306 dnl which breaks in-tree builds. So we do this manually instead.
4307 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4308 dnl be computed as ':' in MSYS Bash.
4311 dnl Everybody supports this, except MS-DOS.
4312 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4314 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4317 AC_DEFINE(DIRECTORY_SEP, ['/'],
4318 [Character that separates directories in a file name.])
4320 if test "${opsys}" = "mingw32"; then
4321 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4322 [Returns true if character is a device separator.])
4324 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4325 [Returns true if character is a directory separator.])
4327 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4328 [Returns true if character is any form of separator.])
4330 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4331 [Returns true if character is a device separator.])
4333 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4334 [Returns true if character is a directory separator.])
4336 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4337 [Returns true if character is any form of separator.])
4340 if test "$USE_X_TOOLKIT" != "none"; then
4344 dnl Assar Westerlund <assar@sics.se> says this is necessary
4345 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4349 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4351 dnl See libXmu.a check above.
4352 if test x$HAVE_X11XTR6 = xyes; then
4353 LIBS="-lXt -lSM -lICE $LIBXMU"
4355 OTHERLIBS="-lXt -$LIBXMU"
4358 [#include <X11/Intrinsic.h>
4359 #include <X11/Xmu/Editres.h>],
4360 [_XEditResCheckMessages (0, 0, 0, 0);],
4361 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4362 [Define to 1 if we should use XEditRes.])])
4369 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4370 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4371 dnl need the constant to dimension an array. So wire in the appropriate
4373 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4377 emacs_broken_SIGIO=no
4380 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4381 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4382 hpux* | nacl | openbsd | sol2* | unixware )
4383 emacs_broken_SIGIO=yes
4387 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4388 dnl the way this system works, libc functions that return malloced
4389 dnl memory use the libc malloc implementation. Calling xfree or
4390 dnl xrealloc on the results of such functions results in a crash.
4392 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4393 dnl but that does not currently work on this system.
4395 dnl It is possible to completely override the malloc implementation on
4396 dnl AIX, but that involves putting the malloc functions in a shared
4397 dnl library and setting the MALLOCTYPE environment variable to point to
4398 dnl that shared library.
4400 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4401 dnl to avoid a crash just use the Emacs implementation for that function.
4403 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4404 dnl of this file, so that we do not check for get_current_dir_name
4405 dnl on AIX. But that might be fragile if something else ends
4406 dnl up testing for get_current_dir_name as a dependency.
4407 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4408 get_current_dir_name should not be used.])
4412 dnl Circumvent a bug in FreeBSD. In the following sequence of
4413 dnl writes/reads on a PTY, read(2) returns bogus data:
4415 dnl write(2) 1022 bytes
4416 dnl write(2) 954 bytes, get EAGAIN
4417 dnl read(2) 1024 bytes in process_read_output
4418 dnl read(2) 11 bytes in process_read_output
4420 dnl That is, read(2) returns more bytes than have ever been written
4421 dnl successfully. The 1033 bytes read are the 1022 bytes written
4422 dnl successfully after processing (for example with CRs added if the
4423 dnl terminal is set up that way which it is here). The same bytes will
4424 dnl be seen again in a later read(2), without the CRs.
4425 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4426 work around an issue when reading from a PTY.])
4432 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4433 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4438 darwin | dragonfly | freebsd | netbsd | openbsd )
4439 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4440 close a pty to make it a controlling terminal (it is already a
4441 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4445 dnl FIXME Surely we can test for this rather than hard-code it.
4447 netbsd | openbsd) sound_device="/dev/audio" ;;
4448 *) sound_device="/dev/dsp" ;;
4452 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4453 [Name of the default sound device.])
4456 dnl Emacs can read input using SIGIO and buffering characters itself,
4457 dnl or using CBREAK mode and making C-g cause SIGINT.
4458 dnl The choice is controlled by the variable interrupt_input.
4460 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4462 dnl Emacs uses the presence of the USABLE_SIGIO macro
4463 dnl to indicate whether or not signal-driven I/O is possible. It uses
4464 dnl INTERRUPT_INPUT to decide whether to use it by default.
4466 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4467 dnl CBREAK mode has two disadvantages
4468 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4469 dnl I hear that in system V this problem does not exist.
4470 dnl 2) Control-G causes output to be discarded.
4471 dnl I do not know whether this can be fixed in system V.
4473 dnl Another method of doing input is planned but not implemented.
4474 dnl It would have Emacs fork off a separate process
4475 dnl to read the input and send it to the true Emacs process
4478 darwin | gnu-linux | gnu-kfreebsd )
4479 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4484 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4485 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4486 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4487 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4488 dnl taking float or double parameters.
4490 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4491 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4492 file defines 'NeedWidePrototypes' as 'NO'.])
4497 dnl Used in process.c, this must be a loop, even if it only runs once.
4498 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4499 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4500 dnl trying suffixes 0-16.
4501 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4502 first PTY, if PTYs are supported.])
4503 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4504 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4505 end of a PTY, if non-standard.])
4506 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4507 end of a PTY, if non-standard.])
4511 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4512 dnl You allocate a pty by opening /dev/ptc to get the master side.
4513 dnl To get the name of the slave side, you just ttyname() the master side.
4514 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4515 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4519 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4520 dnl multi-line AC_DEFINEs are hard. :(
4521 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)])
4522 AC_DEFINE(PTY_NAME_SPRINTF, [])
4523 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4527 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4530 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4532 if test "x$ac_cv_func_grantpt" = xyes; then
4533 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4534 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4535 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4536 dnl to prevent sigchld_handler from intercepting the child's death.
4537 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); }])
4538 dnl if HAVE_POSIX_OPENPT
4539 if test "x$ac_cv_func_posix_openpt" = xyes; then
4540 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4541 AC_DEFINE(PTY_NAME_SPRINTF, [])
4543 elif test "x$ac_cv_func_getpt" = xyes; then
4544 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4545 AC_DEFINE(PTY_NAME_SPRINTF, [])
4547 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4550 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4555 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4556 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4557 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4561 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4562 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4563 dnl from intercepting that death. If any child but grantpt's should die
4564 dnl within, it should be caught after sigrelse(2).
4565 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4566 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); }])
4570 dnl Comments are as per sol2*.
4571 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4572 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); }])
4579 dnl This change means that we don't loop through allocate_pty too
4580 dnl many times in the (rare) event of a failure.
4581 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4582 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4583 dnl Push various streams modules onto a PTY channel. Used in process.c.
4584 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.])
4589 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4590 "typing" a signal character on the pty.])
4593 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4594 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4595 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4598 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4599 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4600 gnu-linux | gnu-kfreebsd )
4602 AC_MSG_CHECKING([for signals via characters])
4603 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4604 #include <linux/version.h>
4605 #if LINUX_VERSION_CODE < 0x20400
4606 # error "Linux version too old"
4608 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4610 AC_MSG_RESULT([$emacs_signals_via_chars])
4611 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4616 AH_TEMPLATE(TAB3, [Undocumented.])
4619 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4621 gnu | dragonfly | freebsd | netbsd | openbsd )
4622 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4623 AC_DEFINE(TAB3, OXTABS)
4626 gnu-linux | gnu-kfreebsd )
4627 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4631 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4632 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4633 [Mark a secondary stack, like the register stack on the ia64.]), [])
4637 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4638 run_time_remap; for HPUX.])
4643 dnl This won't be used automatically yet. We also need to know, at least,
4644 dnl that the stack is continuous.
4645 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4646 registers relevant for conservative garbage collection in the jmp_buf.])
4650 dnl Not all the architectures are tested, but there are Debian packages
4651 dnl for SCM and/or Guile on them, so the technique must work. See also
4652 dnl comments in alloc.c concerning setjmp and gcc.
4653 dnl Fixme: it's probably safe to just use the GCC conditional below.
4654 gnu-linux | gnu-kfreebsd )
4655 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4656 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4657 || defined __alpha__ || defined __mips__ || defined __s390__ \
4658 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4659 || defined __ia64__ || defined __sh__
4662 # error "setjmp not known to work on this arch"
4664 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4669 if test x$GCC = xyes; then
4670 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4671 AC_DEFINE(GC_SETJMP_WORKS, 1)
4674 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4675 AC_DEFINE(GC_SETJMP_WORKS, 1)
4680 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4681 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4684 [[#include <setjmp.h>
4686 # define _longjmp longjmp
4691 _longjmp (j, 1);]])],
4692 [emacs_cv_func__setjmp=yes],
4693 [emacs_cv_func__setjmp=no])])
4694 if test $emacs_cv_func__setjmp = yes; then
4695 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4698 # We need to preserve signal mask to handle C stack overflows.
4699 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4702 [[#include <setjmp.h>
4705 if (! sigsetjmp (j, 1))
4706 siglongjmp (j, 1);]])],
4707 [emacs_cv_func_sigsetjmp=yes],
4708 [emacs_cv_func_sigsetjmp=no])])
4709 if test $emacs_cv_func_sigsetjmp = yes; then
4710 AC_DEFINE([HAVE_SIGSETJMP], 1,
4711 [Define to 1 if sigsetjmp and siglongjmp work.])
4714 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4715 yes,yes,* | *,*,mingw32)
4716 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4717 [Define to 1 if C stack overflow can be handled in some cases.]);;
4722 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4723 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4724 dnl and this is all we need.
4725 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4732 dnl Used in xfaces.c.
4733 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4734 some systems, where it requires time.h.])
4739 dnl Define symbols to identify the version of Unix this is.
4740 dnl Define all the symbols that apply correctly.
4741 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4742 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4743 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4744 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4749 dnl This symbol should be defined on AIX Version 3 ???????
4750 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4752 # error "_AIX not defined"
4754 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4758 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4762 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4763 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4764 dnl distinguish macOS from pure Darwin.
4765 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4768 gnu-linux | gnu-kfreebsd )
4770 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4775 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4779 AC_DEFINE(DOS_NT, [])
4780 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4781 if test "x$ac_enable_checking" != "x" ; then
4782 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4788 AC_DEFINE(USG5_4, [])
4789 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4794 AC_DEFINE(USG5_4, [])
4798 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4801 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4802 emacs_cv_usable_FIONREAD=no
4806 emacs_cv_usable_FIONREAD=yes
4811 [AC_LANG_PROGRAM([[#include <sys/types.h>
4812 #include <sys/ioctl.h>
4814 # include <sys/filio.h>
4817 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4818 [emacs_cv_usable_FIONREAD=yes],
4819 [emacs_cv_usable_FIONREAD=no])
4822 if test $emacs_cv_usable_FIONREAD = yes; then
4823 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4825 if test $emacs_broken_SIGIO = no; then
4826 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4828 [AC_LANG_PROGRAM([[#include <fcntl.h>
4831 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4832 [emacs_cv_usable_SIGIO=yes],
4833 [emacs_cv_usable_SIGIO=no])],
4834 [emacs_cv_usable_SIGIO=yes],
4835 [emacs_cv_usable_SIGIO=no])
4836 if test $emacs_cv_usable_SIGIO = yes; then
4837 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4844 dnl It works to open the pty's tty in the parent (Emacs), then
4845 dnl close and reopen it in the child.
4846 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4847 works to open a pty's tty in the parent process, then close and
4848 reopen it in the child.])
4852 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4857 # Set up the CFLAGS for real compilation, so we can substitute it.
4858 CFLAGS="$REAL_CFLAGS"
4859 CPPFLAGS="$REAL_CPPFLAGS"
4862 ## Hack to detect a buggy GCC version.
4863 if test "$GCC" = yes && \
4864 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4866 *-fno-optimize-sibling-calls*) ;;
4868 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4872 version=$PACKAGE_VERSION
4874 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4875 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4876 [Short copyright string for this version of Emacs.])
4879 ### Specify what sort of things we'll be editing into Makefile and config.h.
4880 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4882 AC_SUBST(configuration)
4887 AC_SUBST(exec_prefix)
4890 AC_SUBST(sharedstatedir)
4891 AC_SUBST(libexecdir)
4895 AC_SUBST(standardlisppath)
4896 AC_SUBST(locallisppath)
4898 AC_SUBST(x_default_search_path)
4900 AC_SUBST(archlibdir)
4906 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4907 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4908 ## end of LIBX_BASE, but nothing ever set it.
4909 AC_SUBST(LD_SWITCH_X_SITE)
4910 AC_SUBST(C_SWITCH_X_SITE)
4911 AC_SUBST(GNUSTEP_CFLAGS)
4913 ## Used in lwlib/Makefile.in.
4914 AC_SUBST(X_TOOLKIT_TYPE)
4916 AC_SUBST(ns_appbindir)
4917 AC_SUBST(ns_appresdir)
4919 AC_SUBST(GNU_OBJC_CFLAGS)
4920 AC_SUBST(OTHER_FILES)
4922 if test -n "${term_header}"; then
4923 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4924 [Define to the header for the built-in window system.])
4927 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4928 [Define to the canonical Emacs configuration name.])
4929 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4930 [Define to the options passed to configure.])
4935 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4936 AC_DEFINE(HAVE_X_WINDOWS, 1,
4937 [Define to 1 if you want to use the X window system.])
4939 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4941 if test "$HAVE_CAIRO" = "yes"; then
4942 FONT_OBJ="ftfont.o ftcrfont.o"
4943 elif test "$HAVE_XFT" = "yes"; then
4944 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4945 elif test "$HAVE_FREETYPE" = "yes"; then
4946 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4956 if test "${USE_X_TOOLKIT}" != "none" ; then
4958 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4959 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4960 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4961 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4962 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4966 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4967 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4971 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4972 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4973 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4977 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4978 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4981 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4984 AC_SUBST(WIDGET_OBJ)
4987 case "$USE_X_TOOLKIT" in
4988 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4989 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4990 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4992 if test "$HAVE_XWIDGETS" = "yes"; then
4993 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4995 AC_SUBST(TOOLKIT_LIBW)
4997 if test "${opsys}" != "mingw32"; then
4998 if test "$USE_X_TOOLKIT" = "none"; then
4999 LIBXT_OTHER="\$(LIBXSM)"
5001 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5004 AC_SUBST(LIBXT_OTHER)
5006 if test "${HAVE_X11}" = "yes" ; then
5007 AC_DEFINE(HAVE_X11, 1,
5008 [Define to 1 if you want to use version 11 of X windows.])
5009 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5013 AC_SUBST(LIBX_OTHER)
5015 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5017 elif test "$USE_X_TOOLKIT" = none; then
5018 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5019 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5021 LIBXMENU='$(lwlibdir)/liblw.a'
5022 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5026 AC_CACHE_CHECK([for struct alignment],
5027 [emacs_cv_struct_alignment],
5029 [AC_LANG_PROGRAM([[#include <stddef.h>
5030 struct __attribute__ ((aligned (8))) s { char c; };
5031 struct t { char c; struct s s; };
5032 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5034 [emacs_cv_struct_alignment=yes],
5035 [emacs_cv_struct_alignment=no])])
5036 if test "$emacs_cv_struct_alignment" = yes; then
5037 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5038 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5039 structure to an N-byte boundary.])
5042 if test "${GNU_MALLOC}" = "yes" ; then
5043 AC_DEFINE(GNU_MALLOC, 1,
5044 [Define to 1 if you want to use the GNU memory allocator.])
5048 if test "${REL_ALLOC}" = "yes" ; then
5049 AC_DEFINE(REL_ALLOC, 1,
5050 [Define REL_ALLOC if you want to use the relocating allocator for
5053 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5055 AC_SUBST(RALLOC_OBJ)
5057 if test "$opsys" = "cygwin"; then
5058 CYGWIN_OBJ="cygw32.o"
5059 ## Cygwin differs because of its unexec().
5061 POST_ALLOC_OBJ=lastfile.o
5062 elif test "$opsys" = "mingw32"; then
5065 POST_ALLOC_OBJ=lastfile.o
5068 PRE_ALLOC_OBJ=lastfile.o
5071 AC_SUBST(CYGWIN_OBJ)
5072 AC_SUBST(PRE_ALLOC_OBJ)
5073 AC_SUBST(POST_ALLOC_OBJ)
5075 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5076 dnl verbatim defined above. The tricky name is apropos, as this hack
5077 dnl makes Fortify go sour!
5078 AH_VERBATIM([FORTIFY_SOUR],
5079 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5080 The workaround disables some useful run-time checking, so it
5081 should be conditional to the platforms with the performance bug.
5082 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5083 #if defined __APPLE__ && defined __GNUC__
5084 # ifndef _DONT_USE_CTYPE_INLINE_
5085 # define _DONT_USE_CTYPE_INLINE_
5087 # ifndef _FORTIFY_SOURCE
5088 # define _FORTIFY_SOURCE 0
5093 # If user asks to omit features, disable optional features that gnulib
5094 # might otherwise enable.
5095 if test "$with_features" = no && test "$enable_acl" != yes; then
5099 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5100 # it temporarily reverts them to their pre-pkg-config values,
5101 # because gnulib needs to work with both src (which uses the
5102 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5103 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5104 # and it therefore needs to run in an environment where LIBS does not
5105 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5106 # for some package unrelated to lib-src.
5109 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5110 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5111 gl_ASSERT_NO_GNULIB_POSIXCHECK
5112 gl_ASSERT_NO_GNULIB_TESTS
5117 if test "${opsys}" = "mingw32"; then
5118 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5119 # Remove unneeded switches from the value of CC that goes to Makefiles
5120 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5124 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5126 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5129 ## The -headerpad option tells ld (see man page) to leave room at the
5130 ## end of the header for adding load commands. Needed for dumping.
5131 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5132 ## architecture (where they are 78 bytes each). The actual number of
5133 ## load commands added is not consistent but normally ranges from
5134 ## about 14 to about 34. Setting it high gets us plenty of slop and
5135 ## only costs about 1.5K of wasted binary space.
5136 headerpad_extra=1000
5137 if test "$HAVE_NS" = "yes"; then
5138 libs_nsgui="-framework AppKit"
5139 if test "$NS_IMPL_COCOA" = "yes"; then
5140 libs_nsgui="$libs_nsgui -framework IOKit"
5145 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5147 ## This is here because src/Makefile.in did some extra fiddling around
5148 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5149 ## LD_SWITCH_SYSTEM_TEMACS instead,
5150 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5151 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5154 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5155 ## find X at run-time.
5156 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5157 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5158 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5159 ## had different values in configure (in ac_link) and src/Makefile.in.
5160 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5161 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5164 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5165 case "$canonical" in
5166 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5167 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5171 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5174 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5175 # Ubuntu, and other systems with "hardened" GCC configurations for
5176 # some reason (Bug#18784). We don't know why this works, but not
5177 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5178 # when trying the option, otherwise clang keeps warning that it does
5179 # not understand it, and pre-4.6 GCC has a similar problem
5180 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5181 # spelling used by GCC 6.1.0 and later (Bug#24682).
5183 [for $CC option to disable position independent executables],
5184 [emacs_cv_prog_cc_no_pie],
5185 [emacs_save_c_werror_flag=$ac_c_werror_flag
5186 emacs_save_LDFLAGS=$LDFLAGS
5187 ac_c_werror_flag=yes
5188 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5189 test $emacs_cv_prog_cc_no_pie = no && break
5190 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5191 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5193 ac_c_werror_flag=$emacs_save_c_werror_flag
5194 LDFLAGS=$emacs_save_LDFLAGS])
5195 if test "$emacs_cv_prog_cc_no_pie" != no; then
5196 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5199 if test x$ac_enable_profiling != x ; then
5201 *freebsd | gnu-linux) ;;
5202 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5206 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5208 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5210 ## Common for all window systems
5211 if test "$window_system" != "none"; then
5212 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5213 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5214 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5217 AC_SUBST(WINDOW_SYSTEM_OBJ)
5219 AH_TOP([/* GNU Emacs site configuration template file.
5221 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5222 Free Software Foundation, Inc.
5224 This file is part of GNU Emacs.
5226 GNU Emacs is free software: you can redistribute it and/or modify
5227 it under the terms of the GNU General Public License as published by
5228 the Free Software Foundation, either version 3 of the License, or (at
5229 your option) any later version.
5231 GNU Emacs is distributed in the hope that it will be useful,
5232 but WITHOUT ANY WARRANTY; without even the implied warranty of
5233 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5234 GNU General Public License for more details.
5236 You should have received a copy of the GNU General Public License
5237 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5240 /* No code in Emacs #includes config.h twice, but some bits of code
5241 intended to work with other packages as well (like gmalloc.c)
5242 think they can include it as many times as they like. */
5243 #ifndef EMACS_CONFIG_H
5244 #define EMACS_CONFIG_H
5247 AH_BOTTOM([#include <conf_post.h>
5249 #endif /* EMACS_CONFIG_H */
5258 #### Report on what we decided to do.
5259 #### Report GTK as a toolkit, even if it doesn't use Xt.
5260 #### It makes printing result more understandable as using GTK sets
5261 #### toolkit_scroll_bars to yes by default.
5262 if test "${HAVE_GTK}" = "yes"; then
5263 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5266 if test $USE_ACL -ne 0; then
5267 ACL_SUMMARY="yes $LIB_ACL"
5272 emacs_standard_dirs='Standard dirs'
5274 Configured for '${canonical}'.
5276 Where should the build process find the source code? ${srcdir}
5277 What compiler should emacs be built with? ${CC} ${CFLAGS}
5278 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5279 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5280 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5281 What window system should Emacs use? ${window_system}
5282 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5283 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5284 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5287 emacs_config_features=
5288 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5289 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5290 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5291 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5294 CANNOT_DUMP) eval val=\${$opt} ;;
5295 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5296 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5297 *) eval val=\${HAVE_$opt} ;;
5300 xno|xnone|x) continue ;;
5305 GTK*|LUCID|MOTIF) opt=$val ;;
5310 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5313 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5314 [Summary of some of the main features enabled by configure.])
5316 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5317 Does Emacs use -lXpm? ${HAVE_XPM}
5318 Does Emacs use -ljpeg? ${HAVE_JPEG}
5319 Does Emacs use -ltiff? ${HAVE_TIFF}
5320 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5321 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5322 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5323 Does Emacs use cairo? ${HAVE_CAIRO}
5324 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5325 Does Emacs support sound? ${HAVE_SOUND}
5326 Does Emacs use -lgpm? ${HAVE_GPM}
5327 Does Emacs use -ldbus? ${HAVE_DBUS}
5328 Does Emacs use -lgconf? ${HAVE_GCONF}
5329 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5330 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5331 Does Emacs use access control lists? ${ACL_SUMMARY}
5332 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5333 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5334 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5335 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5336 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5337 Does Emacs use -lotf? ${HAVE_LIBOTF}
5338 Does Emacs use -lxft? ${HAVE_XFT}
5339 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5340 Does Emacs directly use zlib? ${HAVE_ZLIB}
5341 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5342 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5343 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5344 Does Emacs have threading support in lisp? ${threads_enabled}
5347 if test -n "${EMACSDATA}"; then
5348 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5350 if test -n "${EMACSDOC}"; then
5351 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5356 if test "$HAVE_NS" = "yes"; then
5358 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5359 The installed application will go to nextstep/Emacs.app and can be
5360 run or moved from there."])
5361 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5362 echo "The application will be fully self-contained."
5364 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5365 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5366 to run if these resources are not installed."])
5371 if test "${opsys}" = "cygwin"; then
5373 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5379 # Remove any trailing slashes in these variables.
5381 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5383 case $exec_prefix in
5384 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5387 if test "$HAVE_NS" = "yes"; then
5388 if test "$NS_IMPL_GNUSTEP" = yes; then
5389 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5390 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5391 ns_check_file=Resources/Info-gnustep.plist
5393 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5394 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5395 ns_check_file=Contents/Info.plist
5397 AC_SUBST(ns_check_file)
5400 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5402 dnl config.status treats $srcdir specially, so I think this is ok...
5403 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5405 m4_define([subdir_makefiles],
5406 [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])
5407 SUBDIR_MAKEFILES="subdir_makefiles"
5408 AC_CONFIG_FILES(subdir_makefiles)
5410 dnl test/ is not present in release tarfiles.
5411 opt_makefile=test/Makefile
5413 if test -f "$srcdir/$opt_makefile.in"; then
5414 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5415 dnl Again, it's best not to use a variable. Though you can add
5416 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5417 AC_CONFIG_FILES([test/Makefile])
5421 dnl The admin/ directory used to be excluded from tarfiles.
5422 if test -d $srcdir/admin; then
5423 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5424 AC_CONFIG_FILES([admin/charsets/Makefile])
5425 AC_CONFIG_FILES([admin/unidata/Makefile])
5426 AC_CONFIG_FILES([admin/grammars/Makefile])
5430 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5432 AC_SUBST(SUBDIR_MAKEFILES_IN)
5434 dnl You might wonder (I did) why epaths.h is generated by running make,
5435 dnl rather than just letting configure generate it from epaths.in.
5436 dnl One reason is that the various paths are not fully expanded (see above);
5437 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5438 dnl Secondly, the GNU Coding standards require that one should be able
5439 dnl to run 'make prefix=/some/where/else' and override the values set
5440 dnl by configure. This also explains the 'move-if-change' test and
5441 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5442 AC_CONFIG_COMMANDS([src/epaths.h], [
5443 if test "${opsys}" = "mingw32"; then
5444 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5446 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5447 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5448 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5450 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5451 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5453 AC_CONFIG_COMMANDS([src/.gdbinit], [
5454 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5455 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5459 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5460 dnl See comments for etc-refcards-emacsver.tex.
5461 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5462 dnl it is not quite the same. But we are generating in $srcdir.
5463 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5464 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5465 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5468 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5469 dnl then a directory etc/refcards is created in the build directory,
5470 dnl which is probably harmless, but confusing (in out-of-tree builds).
5471 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5472 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5473 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5474 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5475 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5478 if test $AUTO_DEPEND = yes; then
5479 for dir in $AUTODEPEND_PARENTS; do
5480 AS_MKDIR_P([$dir/deps])
5486 if test ! "$with_mailutils"; then
5487 if test "$with_pop" = yes; then
5488 AC_MSG_WARN([This configuration installs a 'movemail' program
5489 that retrieves POP3 email via only insecure channels.
5490 To omit insecure POP3, you can use '$0 --without-pop'.])
5495 # Don't suggest GNU Mailutils, as it hasn't been ported.
5498 emacs_fix_movemail="use '$0 --with-mailutils'"
5499 case `(movemail --version) 2>/dev/null` in
5501 *) emacs_fix_movemail="install GNU Mailutils
5502 <http://mailutils.org> and $emacs_fix_movemail";;
5504 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5508 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])