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-$host}}
178 emacs_uname_r=`uname -r`
180 dnl Support for --program-prefix, --program-suffix and
181 dnl --program-transform-name options
184 dnl It is important that variables on the RHS not be expanded here,
185 dnl hence the single quotes. This is per the GNU coding standards, see
186 dnl (autoconf) Installation Directory Variables
187 dnl See also epaths.h below.
188 lispdir='${datadir}/emacs/${version}/lisp'
189 standardlisppath='${lispdir}'
190 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
191 '${datadir}/emacs/site-lisp'
192 lisppath='${locallisppath}:${standardlisppath}'
193 etcdir='${datadir}/emacs/${version}/etc'
194 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
195 etcdocdir='${datadir}/emacs/${version}/etc'
196 gamedir='${localstatedir}/games/emacs'
198 dnl Special option to disable the most of other options.
200 [AS_HELP_STRING([--without-all],
201 [omit almost all features and build
202 small executable with minimal dependencies])],
203 [with_features=$withval],
206 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
207 dnl Create a new --with option that defaults to being disabled.
208 dnl NAME is the base name of the option. The shell variable with_NAME
209 dnl will be set to either the user's value (if the option is
210 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
211 dnl option is not specified). Note that the shell variable name is
212 dnl constructed as autoconf does, by replacing non-alphanumeric
213 dnl characters with "_".
214 dnl HELP-STRING is the help text for the option.
215 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
216 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
217 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
220 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
221 dnl Create a new --with option that defaults to $with_features.
222 dnl NAME is the base name of the option. The shell variable with_NAME
223 dnl will be set either to 'no' (for a plain --without-NAME) or to
224 dnl 'yes' (if the option is not specified). Note that the shell
225 dnl variable name is constructed as autoconf does, by replacing
226 dnl non-alphanumeric characters with "_".
227 dnl HELP-STRING is the help text for the option.
228 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
229 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
230 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
233 # FIXME: The default options '--without-mailutils --with-pop' result
234 # in a movemail implementation that supports only unencrypted POP3
235 # connections. Encrypted connections should be the default.
237 AC_ARG_WITH([mailutils],
238 [AS_HELP_STRING([--with-mailutils],
239 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
240 options are irrelevant; this is the default if GNU Mailutils is
243 [with_mailutils=$with_features
244 if test "$with_mailutils" = yes; then
245 (movemail --version) >/dev/null 2>&1 || with_mailutils=no
247 if test "$with_mailutils" = no; then
250 AC_SUBST([with_mailutils])
252 OPTION_DEFAULT_ON([pop],
253 [don't support POP mail retrieval with movemail (--without-pop or
254 --with-mailutils is recommended, as movemail POP is insecure)])
255 if test "$with_pop" = yes; then
256 AC_DEFINE(MAIL_USE_POP)
258 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
260 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
261 if test "$with_kerberos" != no; then
264 AH_TEMPLATE(KERBEROS,
265 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
267 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
268 if test "${with_kerberos5}" != no; then
269 if test "${with_kerberos}" = no; then
273 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
276 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
277 dnl FIXME hesiod support may not be present, so it seems like an error
278 dnl to define, or at least use, this unconditionally.
279 if test "$with_hesiod" != no; then
280 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
283 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
284 if test "$with_mail_unlink" != no; then
285 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
288 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
289 [string giving default POP mail host])],
290 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
292 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
293 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
294 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
295 [ case "${withval}" in
296 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
297 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
298 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
303 [with_sound=$with_features])
305 dnl FIXME currently it is not the last.
306 dnl This should be the last --with option, because --with-x is
307 dnl added later on when we find the file name of X, and it's best to
308 dnl keep them together visually.
309 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
310 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
311 [ case "${withval}" in
312 y | ye | yes ) val=gtk ;;
314 l | lu | luc | luci | lucid ) val=lucid ;;
315 a | at | ath | athe | athen | athena ) val=athena ;;
316 m | mo | mot | moti | motif ) val=motif ;;
317 g | gt | gtk ) val=gtk ;;
321 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
322 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
323 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
324 'athena' and 'lucid' are synonyms.])
330 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])
331 if test "$with_wide_int" = yes; then
332 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
335 dnl _ON results in a '--without' option in the --help output, so
336 dnl the help text should refer to "don't compile", etc.
337 with_xpm_set=${with_xpm+set}
338 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
339 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
340 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
341 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
342 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
343 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
344 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
345 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
346 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
347 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
349 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
350 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
351 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
353 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
354 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
355 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
356 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
357 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
358 On by default on macOS.])],[],[with_ns=maybe])
359 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
361 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
362 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
363 AC_ARG_WITH([gconf],[AS_HELP_STRING([--with-gconf],
364 [compile with Gconf support (Gsettings replaces this)])],[],[with_gconf=maybe])
365 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
366 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
367 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
368 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
369 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
370 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
372 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
373 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
374 [ case "${withval}" in
375 y | ye | yes ) val=yes ;;
377 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
378 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
379 g | gf | gfi | gfil | gfile ) val=gfile ;;
380 w | w3 | w32 ) val=w32 ;;
381 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
382 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
383 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
384 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
387 with_file_notification=$val
389 [with_file_notification=$with_features])
391 OPTION_DEFAULT_OFF([xwidgets],
392 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
394 ## For the times when you want to build Emacs but don't have
395 ## a suitable makeinfo, and can live without the manuals.
396 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
397 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
399 ## Makefile.in needs the cache file name.
402 ## This is an option because I do not know if all info/man support
403 ## compressed files, nor how to test if they do so.
404 OPTION_DEFAULT_ON([compress-install],
405 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
406 make GZIP_PROG= install])
408 AC_ARG_WITH(gameuser,dnl
409 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
410 [user for shared game score files.
411 An argument prefixed by ':' specifies a group instead.])])
414 case ${with_gameuser} in
416 yes) gamegroup=games ;;
417 :*) gamegroup=${with_gameuser#:} ;;
418 *) gameuser=${with_gameuser} ;;
421 AC_ARG_WITH([gnustep-conf],dnl
422 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
423 [name of GNUstep configuration file to use on systems where the command
424 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
425 /etc/GNUstep/GNUstep.conf])])
426 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
427 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
428 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
429 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
431 AC_ARG_ENABLE(ns-self-contained,
432 [AS_HELP_STRING([--disable-ns-self-contained],
433 [disable self contained build under NeXTstep])],
434 EN_NS_SELF_CONTAINED=$enableval,
435 EN_NS_SELF_CONTAINED=yes)
438 AC_ARG_ENABLE(locallisppath,
439 [AS_HELP_STRING([--enable-locallisppath=PATH],
440 [directories Emacs should search for lisp files specific
442 if test "${enableval}" = "no"; then
444 elif test "${enableval}" != "yes"; then
445 locallisppath=${enableval} locallisppathset=yes
448 AC_ARG_ENABLE(checking,
449 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
450 [enable expensive run-time checks. With LIST,
451 enable only specific categories of checks.
452 Categories are: all,yes,no.
453 Flags are: stringbytes, stringoverrun, stringfreelist,
454 xmallocoverrun, conslist, glyphs])],
455 [ac_checking_flags="${enableval}"],[])
456 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
457 for check in $ac_checking_flags
460 # these set all the flags to specific states
461 yes) ac_enable_checking=1 ;;
462 no) ac_enable_checking= ;
463 ac_gc_check_stringbytes= ;
464 ac_gc_check_string_overrun= ;
465 ac_gc_check_string_free_list= ;
466 ac_xmalloc_overrun= ;
467 ac_gc_check_cons_list= ;
469 all) ac_enable_checking=1 ;
470 ac_gc_check_stringbytes=1 ;
471 ac_gc_check_string_overrun=1 ;
472 ac_gc_check_string_free_list=1 ;
473 ac_xmalloc_overrun=1 ;
474 ac_gc_check_cons_list=1 ;
476 # these enable particular checks
477 stringbytes) ac_gc_check_stringbytes=1 ;;
478 stringoverrun) ac_gc_check_string_overrun=1 ;;
479 stringfreelist) ac_gc_check_string_free_list=1 ;;
480 xmallocoverrun) ac_xmalloc_overrun=1 ;;
481 conslist) ac_gc_check_cons_list=1 ;;
482 glyphs) ac_glyphs_debug=1 ;;
483 *) AC_MSG_ERROR(unknown check category $check) ;;
488 if test x$ac_enable_checking != x ; then
489 AC_DEFINE(ENABLE_CHECKING, 1,
490 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
492 if test x$ac_gc_check_stringbytes != x ; then
493 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
494 [Define this temporarily to hunt a bug. If defined, the size of
495 strings is redundantly recorded in sdata structures so that it can
496 be compared to the sizes recorded in Lisp strings.])
498 if test x$ac_gc_check_string_overrun != x ; then
499 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
500 [Define this to check for short string overrun.])
502 if test x$ac_gc_check_string_free_list != x ; then
503 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
504 [Define this to check the string free list.])
506 if test x$ac_xmalloc_overrun != x ; then
507 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
508 [Define this to check for malloc buffer overrun.])
510 if test x$ac_gc_check_cons_list != x ; then
511 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
512 [Define this to check for errors in cons list.])
514 if test x$ac_glyphs_debug != x ; then
515 AC_DEFINE(GLYPH_DEBUG, 1,
516 [Define this to enable glyphs debugging code.])
519 dnl The name of this option is unfortunate. It predates, and has no
520 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
521 dnl Actually, it stops it working.
522 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
523 AC_ARG_ENABLE(profiling,
524 [AS_HELP_STRING([--enable-profiling],
525 [build emacs with low-level, gprof profiling support.
526 Mainly useful for debugging Emacs itself. May not work on
527 all platforms. Stops profiler.el working.])],
528 [ac_enable_profiling="${enableval}"],[])
529 if test x$ac_enable_profiling != x ; then
530 PROFILING_CFLAGS="-DPROFILING=1 -pg"
534 AC_SUBST(PROFILING_CFLAGS)
536 AC_ARG_ENABLE(autodepend,
537 [AS_HELP_STRING([--enable-autodepend],
538 [automatically generate dependencies to .h-files.
539 Requires gcc, enabled if found.])],
540 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
542 AC_ARG_ENABLE(gtk-deprecation-warnings,
543 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
544 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
545 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
548 AC_ARG_ENABLE([build-details],
549 [AS_HELP_STRING([--disable-build-details],
550 [Make the build more deterministic by omitting host
551 names, time stamps, etc. from the output.])],
552 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
553 AC_SUBST([BUILD_DETAILS])
555 dnl This used to use changequote, but, apart from 'changequote is evil'
556 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
557 dnl the great gob of text. Thus it's not processed for possible expansion.
558 dnl Just make sure the brackets remain balanced.
560 dnl Since Emacs can't find matching pairs of quotes, boundaries are
561 dnl indicated by comments.
565 ### If you add support for a new configuration, add code to this
566 ### switch statement to recognize your configuration name and select
567 ### the appropriate opsys.
569 ### As far as handling version numbers on operating systems is
570 ### concerned, make sure things will fail in a fixable way. If
571 ### /etc/MACHINES doesn't say anything about version numbers, be
572 ### prepared to handle anything reasonably. If version numbers
573 ### matter, be sure /etc/MACHINES says something about it.
576 case "${canonical}" in
578 ## GNU/Linux and similar ports
593 ## FreeBSD kernel + glibc based userland
604 *-*-openbsd* | *-*-mirbsd* )
608 ## Apple Darwin / macOS
610 case "${canonical}" in
611 *-apple-darwin[0-9].*) unported=yes ;;
612 i[3456]86-* | x86_64-* ) ;;
616 ## FIXME: Find a way to use Fink if available (Bug#11507).
619 ## Chromium Native Client
629 ## HP 9000 series 700 and 800, running HP/UX
633 hppa*-hp-hpux1[1-9]* )
635 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
639 rs6000-ibm-aix4.[23]* )
642 powerpc-ibm-aix4.[23]* )
645 rs6000-ibm-aix[56]* )
648 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
654 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
655 | x86_64-*-solaris2* | x86_64-*-sunos5*)
656 case "${canonical}" in
658 amd64-*-*|x86_64-*-*) ;;
662 case "${canonical}" in
663 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
665 emacs_check_sunpro_c=yes
667 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
668 ## Note that Emacs 23.1's NEWS said the following would be dropped.
669 *-sunos5.6* | *-solaris2.6* )
673 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
674 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
676 emacs_check_sunpro_c=yes
679 ## Watch out for a compiler that we know will not work.
680 case "${canonical}" in
681 *-solaris* | *-sunos5* )
682 if [ "x$CC" = x/usr/ucb/cc ]; then
683 ## /usr/ucb/cc doesn't work;
684 ## we should find some other compiler that does work.
692 ## Intel 386 machines where we don't care about the manufacturer.
694 case "${canonical}" in
695 *-darwin* ) opsys=darwin ;;
698 # MinGW overrides and adds some system headers in nt/inc.
699 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
701 *-sysv4.2uw* ) opsys=unixware ;;
702 *-sysv5uw* ) opsys=unixware ;;
703 *-sysv5OpenUNIX* ) opsys=unixware ;;
704 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
710 case "${canonical}" in
713 # MinGW overrides and adds some system headers in nt/inc.
714 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
716 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
725 ### If the code above didn't choose an operating system, just choose
726 ### an operating system based on the configuration name. You really
727 ### only want to use this when you have no idea what the right
728 ### operating system is; if you know what operating systems a machine
729 ### runs, it's cleaner to make it explicit in the case statement
731 if test x"${opsys}" = x; then
732 case "${canonical}" in
733 *-gnu* ) opsys=gnu ;;
743 if test $unported = yes; then
744 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
745 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
746 Check 'etc/MACHINES' for recognized configuration names.])
749 #### Choose a compiler.
751 dnl Don't bother to test for C89.
752 AC_DEFUN([_AC_PROG_CC_C89], [$2])
754 dnl Sets GCC=yes if using gcc.
755 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
756 if test -n "$XCRUN"; then
757 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
758 test -n "$AR" && export AR
761 dnl Emacs needs C99 or later.
766 if test x$GCC = xyes; then
767 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
770 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
771 AC_DEFUN([gl_CRYPTO_CHECK])
772 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
773 # as we don't use them.
774 AC_DEFUN([gl_FCNTL_O_FLAGS])
775 # Avoid gnulib's test for pthread_sigmask.
777 for func in $ac_func_list; do
778 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
781 # Use the system putenv even if it lacks GNU features, as we don't need them,
782 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
783 AC_CHECK_FUNCS_ONCE([putenv])
784 AC_DEFUN([gl_FUNC_PUTENV],
785 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
786 # Emacs does not use the wchar or wctype-h modules.
787 AC_DEFUN([gt_TYPE_WINT_T],
788 [GNULIB_OVERRIDES_WINT_T=0
789 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
791 # Initialize gnulib right after choosing the compiler.
792 dnl Amongst other things, this sets AR and ARFLAGS.
795 if test "$ac_test_CFLAGS" != set; then
796 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
797 # if -g3 works and the user does not specify CFLAGS.
798 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
801 emacs_g3_CFLAGS='-g3';;
803 emacs_g3_CFLAGS='-g3 -O2';;
807 if test -n "$emacs_g3_CFLAGS"; then
808 emacs_save_CFLAGS=$CFLAGS
809 CFLAGS=$emacs_g3_CFLAGS
810 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
811 [emacs_cv_prog_cc_g3],
812 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
813 [emacs_cv_prog_cc_g3=yes],
814 [emacs_cv_prog_cc_g3=no])])
815 if test $emacs_cv_prog_cc_g3 != yes; then
816 CFLAGS=$emacs_save_CFLAGS
818 if test $opsys = mingw32; then
819 CFLAGS="$CFLAGS -gdwarf-2"
826 # No optimization flag was inferred for this non-GCC compiler.
827 # Try -O. This is needed for xlc on AIX; see Bug#14258.
828 emacs_save_CFLAGS=$CFLAGS
829 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
831 AC_CACHE_CHECK([whether $CC accepts -O],
832 [emacs_cv_prog_cc_o],
833 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
834 [emacs_cv_prog_cc_o=yes],
835 [emacs_cv_prog_cc_o=no])])
836 if test $emacs_cv_prog_cc_o != yes; then
837 CFLAGS=$emacs_save_CFLAGS
842 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
843 # ---------------------------------------------------------------------------
844 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
845 # Otherwise, run RUN-IF-NOT-FOUND.
846 AC_DEFUN([gl_GCC_VERSION_IFELSE],
850 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
853 # error "your version of gcc is older than $1.$2"
860 AC_ARG_ENABLE([gcc-warnings],
861 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
862 [control generation of GCC warnings. The TYPE 'yes'
863 means to fail if any warnings are issued; 'warn-only'
864 means issue warnings without failing (default for
865 developer builds); 'no' means disable warnings
866 (default for non-developer builds).])],
869 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
871 gl_gcc_warnings=$enableval],
872 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
873 # is a developer as opposed to a builder. This is most likely true
874 # if GCC is recent enough and there is a .git directory or file;
875 # however, if there is also a .tarball-version file it is probably
876 # just a release imported into Git for patch management.
878 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
879 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
882 AC_ARG_ENABLE([check-lisp-object-type],
883 [AS_HELP_STRING([--enable-check-lisp-object-type],
884 [Enable compile-time checks for the Lisp_Object data type,
885 which can catch some bugs during development.
886 The default is "no" if --enable-gcc-warnings is "no".])])
887 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
888 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
889 [Define to enable compile-time checks for the Lisp_Object data type.])
892 # clang is unduly picky about some things.
893 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
900 [emacs_cv_clang=yes],
901 [emacs_cv_clang=no])])
904 # When compiling with GCC, prefer -isystem to -I when including system
905 # include files, to avoid generating useless diagnostics for the files.
906 AS_IF([test $gl_gcc_warnings = no],
909 AS_IF([test "$emacs_cv_clang" = yes],
911 # Turn off some warnings if supported.
912 gl_WARN_ADD([-Wno-switch])
913 gl_WARN_ADD([-Wno-pointer-sign])
914 gl_WARN_ADD([-Wno-string-plus-int])
915 gl_WARN_ADD([-Wno-unknown-attributes])
920 # This, $nw, is the list of warnings we disable.
923 case $with_x_toolkit in
924 lucid | athena | motif)
925 # Old toolkits mishandle 'const'.
926 nw="$nw -Wwrite-strings"
929 AS_IF([test $gl_gcc_warnings = yes],
930 [WERROR_CFLAGS=-Werror])
932 nw="$nw -Wduplicated-branches" # Too many false alarms
933 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
934 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
935 nw="$nw -Woverlength-strings" # Not a problem these days
936 nw="$nw -Wformat-nonliteral" # we do this a lot
937 nw="$nw -Wvla" # Emacs uses <vla.h>.
938 nw="$nw -Wswitch-default" # Too many warnings for now
939 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
940 nw="$nw -Winline" # OK to ignore 'inline'
941 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
942 # signed overflow has undefined behavior
943 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
944 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
945 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
947 # Emacs doesn't care about shadowing; see
948 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
951 # Emacs's use of alloca inhibits protecting the stack.
952 nw="$nw -Wstack-protector"
954 # Emacs's use of partly-const functions such as Fgnutls_available_p
955 # make this option problematic.
956 nw="$nw -Wsuggest-attribute=const"
958 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
959 # option problematic.
960 nw="$nw -Wsuggest-attribute=pure"
962 # This part is merely for shortening the command line,
963 # since -Wall implies -Wswitch.
966 # This part is merely for shortening the command line,
967 # since -Wno-FOO needs to be added below regardless.
968 nw="$nw -Wmissing-field-initializers"
969 nw="$nw -Woverride-init"
970 nw="$nw -Wtype-limits"
971 nw="$nw -Wunused-parameter"
973 if test "$emacs_cv_clang" = yes; then
974 nw="$nw -Wcast-align"
975 nw="$nw -Wdouble-promotion"
976 nw="$nw -Wmissing-braces"
979 # This causes too much noise in the MinGW build
980 if test $opsys = mingw32; then
981 nw="$nw -Wpointer-sign"
984 gl_MANYWARN_ALL_GCC([ws])
985 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
989 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
990 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
991 gl_WARN_ADD([-Wno-override-init]) # More trouble than it is worth
992 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
993 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
994 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
995 gl_WARN_ADD([-Wno-format-nonliteral])
997 # clang is unduly picky about braces.
998 if test "$emacs_cv_clang" = yes; then
999 gl_WARN_ADD([-Wno-missing-braces])
1002 # This causes too much noise in the MinGW build
1003 if test $opsys = mingw32; then
1004 gl_WARN_ADD([-Wno-pointer-sign])
1007 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
1008 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1009 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1010 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1011 without upsetting glibc 2.15+. */
1012 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1013 && defined __OPTIMIZE__ && __OPTIMIZE__)
1014 # define _FORTIFY_SOURCE 2
1019 # clang is picky about these regardless of whether
1020 # --enable-gcc-warnings is specified.
1021 if test "$emacs_cv_clang" = yes; then
1022 gl_WARN_ADD([-Wno-initializer-overrides])
1023 gl_WARN_ADD([-Wno-tautological-compare])
1024 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
1027 # Use a slightly smaller set of warning options for lib/.
1029 nw="$nw -Wunused-macros"
1030 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1032 AC_SUBST([WERROR_CFLAGS])
1033 AC_SUBST([GNULIB_WARN_CFLAGS])
1042 AC_ARG_ENABLE(link-time-optimization,
1043 [AS_HELP_STRING([--enable-link-time-optimization],
1044 [build emacs with link-time optimization.
1045 This requires GCC 4.5.0 or later, or clang.
1046 (Note that clang support is experimental - see INSTALL.)
1047 It also makes Emacs harder to debug, and when we tried it
1048 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1049 recommended for typical use.])],
1050 if test "${enableval}" != "no"; then
1052 if test "$emacs_cv_clang" = yes; then
1053 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1054 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1055 if test -x "$GOLD_PLUGIN"; then
1058 elif test x$GCC = xyes; then
1059 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1060 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1061 if test x$CPUS != x; then
1067 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1069 if test -z "$LTO"; then
1073 CFLAGS="$CFLAGS $LTO"
1074 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1075 [ac_lto_supported=yes], [ac_lto_supported=no])
1076 CFLAGS="$old_CFLAGS"
1078 AC_MSG_RESULT([$ac_lto_supported])
1079 if test "$ac_lto_supported" = "yes"; then
1080 CFLAGS="$CFLAGS $LTO"
1081 if test "$emacs_cv_clang" = yes; then
1082 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1083 # WARNING: 'ar --plugin ...' doesn't work without
1084 # command, so plugin name is appended to ARFLAGS.
1085 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1086 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1088 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1089 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1090 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1091 dnl dump core on Fedora 20, so play it safe for now.
1092 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1093 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1099 dnl Automake replacements.
1100 AC_DEFUN([AM_CONDITIONAL],
1104 dnl Prefer silent make output. For verbose output, use
1105 dnl 'configure --disable-silent-rules' or 'make V=1' .
1106 dnl This code is adapted from Automake.
1107 dnl Although it can be simplified now that GNU Make is assumed,
1108 dnl the simplification hasn't been done yet.
1109 AC_ARG_ENABLE([silent-rules],
1111 [--disable-silent-rules],
1112 [verbose build output (undo: "make V=0")])])
1113 if test "$enable_silent_rules" = no; then
1114 AM_DEFAULT_VERBOSITY=1
1116 AM_DEFAULT_VERBOSITY=0
1119 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1121 AC_SUBST([AM_DEFAULT_V])
1122 AC_SUBST([AM_DEFAULT_VERBOSITY])
1124 dnl Some other nice autoconf tests.
1126 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1128 dnl if test "x$RANLIB" = x; then
1133 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1134 dnl can be made to directories. This is not relevant for our usage, and
1135 dnl excludes some cases that work fine for us. Eg MS Windows or files
1136 dnl hosted on AFS, both examples where simple links work, but links to
1137 dnl directories fail. We use a cut-down version instead.
1140 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1141 rm -f conf$$ conf$$.file
1143 LN_S_FILEONLY='cp -p'
1145 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1146 dnl random program in the current directory.
1147 if (echo >conf$$.file) 2>/dev/null; then
1148 if ln -s conf$$.file conf$$ 2>/dev/null; then
1149 if test "$opsys" = "mingw32"; then
1150 LN_S_FILEONLY='/bin/ln -s'
1152 LN_S_FILEONLY='ln -s'
1154 elif ln conf$$.file conf$$ 2>/dev/null; then
1155 if test "$opsys" = "mingw32"; then
1156 LN_S_FILEONLY=/bin/ln
1163 rm -f conf$$ conf$$.file
1165 if test "$LN_S_FILEONLY" = "ln -s"; then
1166 AC_MSG_RESULT([yes])
1168 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1171 AC_SUBST(LN_S_FILEONLY)
1174 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1175 dnl doesn't support links to directories, as in "ln file dir". But that
1176 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1177 dnl executables at "make install" time.
1178 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1179 dnl for more details.
1180 if test "$opsys" = "mingw32"; then
1184 dnl On some Debian versions, "install-info" prints irritating messages
1185 dnl "This is not dpkg install-info anymore, but GNU install-info"
1186 dnl if called via an absolute file name.
1187 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1188 dnl Sadly some people may have an old ginstall-info installed on
1189 dnl non-Debian systems, so we can't use this.
1190 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1191 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1193 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1194 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1195 dnl Don't use GZIP, which is used by gzip for additional parameters.
1196 AC_PATH_PROG(GZIP_PROG, gzip)
1198 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1199 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1201 AC_CACHE_CHECK([for 'find' args to delete a file],
1202 [emacs_cv_find_delete],
1203 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1204 test ! -f conftest.tmp
1205 then emacs_cv_find_delete="-delete"
1206 else emacs_cv_find_delete="-exec rm -f {} ';'"
1208 FIND_DELETE=$emacs_cv_find_delete
1209 AC_SUBST([FIND_DELETE])
1213 if test $opsys = gnu-linux; then
1214 if test "${SETFATTR+set}" != set; then
1215 AC_CACHE_CHECK([for setfattr],
1216 [emacs_cv_prog_setfattr],
1218 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1219 emacs_cv_prog_setfattr=yes
1221 emacs_cv_prog_setfattr=no
1223 if test "$emacs_cv_prog_setfattr" = yes; then
1224 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1230 AC_SUBST([SETFATTR])
1233 case $opsys,$PAXCTL_notdumped,$emacs_uname_r in
1234 gnu-linux,,* | netbsd,,[0-7].*)
1235 AC_PATH_PROG([PAXCTL], [paxctl], [],
1236 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1237 if test -n "$PAXCTL"; then
1238 if test "$opsys" = netbsd; then
1239 PAXCTL_dumped='$(PAXCTL) +a'
1240 PAXCTL_notdumped=$PAXCTL_dumped
1242 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1243 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1244 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1245 AC_MSG_RESULT([yes])
1250 if test -n "$PAXCTL"; then
1251 PAXCTL_dumped='$(PAXCTL) -zex'
1252 PAXCTL_notdumped='$(PAXCTL) -r'
1257 AC_SUBST([PAXCTL_dumped])
1258 AC_SUBST([PAXCTL_notdumped])
1260 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1261 if test "${MAKEINFO:=makeinfo}" != "no"; then
1262 case `($MAKEINFO --version) 2>/dev/null` in
1263 *' (GNU texinfo) '4.1[[3-9]]* | \
1264 *' (GNU texinfo) '[[5-9]]* | \
1265 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1270 ## Makeinfo is unusual. For a released Emacs, the manuals are
1271 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1272 ## therefore in the category of "special tools" not normally required, which
1273 ## configure does not have to check for (eg autoconf itself).
1274 ## In a repository checkout on the other hand, the manuals are not included.
1275 ## So makeinfo is a requirement to build from the repository, and configure
1276 ## should test for it as it does for any other build requirement.
1277 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1278 ## with pre-built manuals, from a repository checkout.
1281 if test "$MAKEINFO" = "no"; then
1283 if test "x${with_makeinfo}" = "xno"; then
1285 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1286 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1287 source tree does not seem to have pre-built manuals in the 'info' directory.
1288 Either install a suitable version of makeinfo, or re-run configure
1289 with the '--without-makeinfo' option to build without the manuals.] )
1292 AC_SUBST([MAKEINFO])
1293 AC_SUBST(HAVE_MAKEINFO)
1295 if test $opsys = mingw32; then
1296 DOCMISC_W32=efaq-w32
1300 AC_SUBST(DOCMISC_W32)
1302 dnl Add our options to ac_link now, after it is set up.
1304 if test x$GCC = xyes; then
1305 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1306 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1308 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1309 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1312 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1313 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1314 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1315 dnl if not built to support GNU ld.
1317 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1318 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1319 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1320 dnl Eg "make LDFLAGS=... all" could run into problems,
1321 dnl http://bugs.debian.org/684788
1322 dnl * unnecessary, since temacs is the only thing that actually needs it.
1323 dnl Indeed this is where it was originally, prior to:
1324 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1325 late_LDFLAGS="$LDFLAGS"
1326 if test x$GCC = xyes; then
1327 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1329 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1332 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1334 AC_MSG_CHECKING([for -znocombreloc])
1335 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1336 [AC_MSG_RESULT(yes)],
1337 LDFLAGS_NOCOMBRELOC=
1338 [AC_MSG_RESULT(no)])
1340 LDFLAGS="$late_LDFLAGS"
1342 AC_CACHE_CHECK([whether addresses are sanitized],
1343 [emacs_cv_sanitize_address],
1346 [[#ifndef __has_feature
1347 #define __has_feature(f) 0
1349 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1351 error "Addresses are not sanitized.";
1354 [emacs_cv_sanitize_address=yes],
1355 [emacs_cv_sanitize_address=no])])
1357 dnl The function dump-emacs will not be defined and temacs will do
1358 dnl (load "loadup") automatically unless told otherwise.
1359 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1361 nacl) CANNOT_DUMP=yes ;;
1364 if test "$CANNOT_DUMP" = "yes"; then
1365 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1366 elif test "$emacs_cv_sanitize_address" = yes; then
1367 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1370 AC_SUBST(CANNOT_DUMP)
1373 UNEXEC_OBJ=unexelf.o
1375 # MSDOS uses unexcoff.o
1377 UNEXEC_OBJ=unexaix.o
1383 UNEXEC_OBJ=unexmacosx.o
1386 UNEXEC_OBJ=unexhp9k800.o
1389 UNEXEC_OBJ=unexw32.o
1392 # Use the Solaris dldump() function, called from unexsol.c, to dump
1393 # emacs, instead of the generic ELF dump code found in unexelf.c.
1394 # The resulting binary has a complete symbol table, and is better
1395 # for debugging and other observability tools (debuggers, pstack, etc).
1397 # If you encounter a problem using dldump(), please consider sending
1398 # a message to the OpenSolaris tools-linking mailing list:
1399 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1401 # It is likely that dldump() works with older Solaris too, but this has
1402 # not been tested, so for now this change is for Solaris 10 or newer.
1403 UNEXEC_OBJ=unexsol.o
1406 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1411 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1412 ## The system compiler, GCC, has apparently been modified to not
1413 ## look there, contrary to what a stock GCC would do.
1414 ### It's not our place to do this. See bug#10313#17.
1415 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1420 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1421 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1425 ### It's not our place to do this. See bug#10313#17.
1426 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1431 ## Han Boetes <han@boetes.org> says this is necessary,
1432 ## otherwise Emacs dumps core on elf systems.
1433 LD_SWITCH_SYSTEM="-Z"
1436 AC_SUBST(LD_SWITCH_SYSTEM)
1438 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1440 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1441 ## which has not been defined yet. When this was handled with cpp,
1442 ## it was expanded to null when configure sourced the s/*.h file.
1443 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1444 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1445 ## (or somesuch), but because it is supposed to go at the _front_
1446 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1447 ## Compare with the gnu-linux case below, which added to the end
1448 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1449 ## LD_SWITCH_SYSTEM_TEMACS.
1452 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1459 AC_CHECK_DECL([__ELF__])
1460 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1461 ## With ELF, make sure that all common symbols get allocated to in the
1462 ## data section. Otherwise, the dump of temacs may miss variables in
1463 ## the shared library that have been initialized. For example, with
1464 ## GNU libc, __malloc_initialized would normally be resolved to the
1465 ## shared library's .bss section, which is fatal.
1466 if test "x$GCC" = "xyes"; then
1467 C_SWITCH_MACHINE="-fno-common"
1469 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1472 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1473 dnl albeit under the mistaken assumption that said file
1474 dnl was no longer used.
1475 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1479 AC_SUBST(C_SWITCH_MACHINE)
1481 AC_SUBST(UNEXEC_OBJ)
1484 ## Some programs in src produce warnings saying certain subprograms
1485 ## are too complex and need a MAXMEM value greater than 2000 for
1486 ## additional optimization. --nils@exp-math.uni-essen.de
1487 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1488 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1489 if test "$opsys" = "mingw32"; then
1490 case "$canonical" in
1491 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1492 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1495 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1496 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1497 AC_SUBST(C_SWITCH_SYSTEM)
1502 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1503 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1505 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1507 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1509 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1511 ## Motif needs -lgen.
1512 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1515 AC_SUBST(LIBS_SYSTEM)
1517 ### Make sure subsequent tests use flags consistent with the build flags.
1519 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1520 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1522 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1525 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1526 AC_DEFUN([AC_TYPE_SIZE_T])
1527 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1528 AC_DEFUN([AC_TYPE_UID_T])
1530 # sqrt and other floating-point functions such as fmod and frexp
1531 # are found in -lm on many systems.
1533 AC_SEARCH_LIBS([sqrt], [m])
1534 if test "X$LIBS" = "X$OLD_LIBS"; then
1537 LIB_MATH=$ac_cv_search_sqrt
1541 dnl Current possibilities handled by sed (aix4-2 -> aix,
1542 dnl gnu-linux -> gnu/linux, etc.):
1543 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1544 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1545 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1552 ## Adding -lm confuses the dynamic linker, so omit it.
1555 freebsd | dragonfly )
1556 SYSTEM_TYPE=berkeley-unix
1558 gnu-linux | gnu-kfreebsd )
1560 hpux10-20 | hpux11 )
1564 SYSTEM_TYPE=windows-nt
1566 dnl NB this may be adjusted below.
1568 SYSTEM_TYPE=berkeley-unix
1572 SYSTEM_TYPE=usg-unix-v
1578 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1579 [The type of system you are compiling for; sets 'system-type'.])
1580 AC_SUBST([SYSTEM_TYPE])
1583 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1584 pre_PKG_CONFIG_LIBS=$LIBS
1586 PKG_PROG_PKG_CONFIG(0.9.0)
1588 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1589 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1590 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1591 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1592 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1593 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1595 AC_DEFUN([EMACS_CHECK_MODULES],
1596 [PKG_CHECK_MODULES([$1], [$2],
1597 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1598 m4_default([$3], [HAVE_$1=yes])],
1599 [m4_default([$4], [HAVE_$1=no])])])
1602 if test "${with_sound}" != "no"; then
1603 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1604 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1605 have_sound_header=yes, [], [
1607 #define WIN32_LEAN_AND_MEAN
1608 #include <windows.h>
1611 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1612 AC_MSG_ERROR([OSS sound support requested but not found.])
1614 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1615 # Emulation library used on NetBSD.
1616 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1617 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1618 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1619 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1620 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1624 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1626 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1627 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1628 if test $HAVE_ALSA = yes; then
1629 SAVE_CFLAGS="$CFLAGS"
1631 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1632 LIBS="$ALSA_LIBS $LIBS"
1633 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1634 emacs_alsa_normal=yes,
1635 emacs_alsa_normal=no)
1636 if test "$emacs_alsa_normal" != yes; then
1637 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1638 [[snd_lib_error_set_handler (0);]])],
1639 emacs_alsa_subdir=yes,
1640 emacs_alsa_subdir=no)
1641 if test "$emacs_alsa_subdir" != yes; then
1642 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1644 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1647 CFLAGS="$SAVE_CFLAGS"
1649 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1650 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1651 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1652 elif test "${with_sound}" = "alsa"; then
1653 AC_MSG_ERROR([ALSA sound support requested but not found.])
1655 fi dnl with_sound = alsa|yes
1657 dnl Define HAVE_SOUND if we have sound support. We know it works and
1658 dnl compiles only on the specified platforms. For others, it
1659 dnl probably doesn't make sense to try.
1660 dnl FIXME So surely we should bypass this whole section if not using
1661 dnl one of these platforms?
1662 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1664 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1665 dnl Adjust the --with-sound help text if you change this.
1666 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1667 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1673 AC_SUBST(CFLAGS_SOUND)
1676 dnl checks for header files
1677 AC_CHECK_HEADERS_ONCE(
1684 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1686 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1687 [emacs_cv_personality_addr_no_randomize],
1689 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1690 [[personality (personality (0xffffffff)
1691 | ADDR_NO_RANDOMIZE)]])],
1692 [emacs_cv_personality_addr_no_randomize=yes],
1693 [emacs_cv_personality_addr_no_randomize=no])])
1694 if test $emacs_cv_personality_addr_no_randomize = yes; then
1695 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1696 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1699 # Note that Solaris has sys/sysinfo.h which defines struct
1700 # sysinfo as well. To make sure that we're using GNU/Linux
1701 # sysinfo, we explicitly set one of its fields.
1702 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1703 AC_MSG_CHECKING([if Linux sysinfo may be used])
1704 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1705 [[struct sysinfo si;
1708 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1709 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1710 if test $emacs_cv_linux_sysinfo = yes; then
1711 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1712 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1713 [[struct sysinfo si; return si.mem_unit]])],
1714 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1715 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1719 dnl On Solaris 8 there's a compilation warning for term.h because
1720 dnl it doesn't define 'bool'.
1721 AC_CHECK_HEADERS(term.h, , , -)
1723 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1725 if test $ac_cv_have_decl_sys_siglist != yes; then
1726 # For Tru64, at least:
1727 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1732 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1733 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1734 #if HAVE_SYS_SOCKET_H
1735 #include <sys/socket.h>
1737 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1738 #if HAVE_SYS_SOCKET_H
1739 #include <sys/socket.h>
1741 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1742 #if HAVE_SYS_SOCKET_H
1743 #include <sys/socket.h>
1746 dnl checks for structure members
1747 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1748 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1749 struct ifreq.ifr_addr,
1750 struct ifreq.ifr_addr.sa_len], , ,
1751 [AC_INCLUDES_DEFAULT
1752 #if HAVE_SYS_SOCKET_H
1753 #include <sys/socket.h>
1759 dnl Check for endianness.
1760 dnl AC_C_BIGENDIAN is done by gnulib.
1762 dnl check for Make feature
1765 AUTODEPEND_PARENTS='lib src'
1766 dnl check if we have GCC and autodepend is on.
1767 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1768 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1769 SAVE_CFLAGS="$CFLAGS"
1770 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1771 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1772 CFLAGS="$SAVE_CFLAGS"
1773 test -f deps.d || ac_enable_autodepend=no
1775 AC_MSG_RESULT([$ac_enable_autodepend])
1776 if test $ac_enable_autodepend = yes; then
1780 AC_SUBST(AUTO_DEPEND)
1782 #### Choose a window system.
1784 ## We leave window_system equal to none if
1785 ## we end up building without one. Any new window system should
1786 ## set window_system to an appropriate value and add objects to
1787 ## window-system-specific substs.
1791 if test "$no_x" != yes; then
1795 LD_SWITCH_X_SITE_RPATH=
1796 if test "${x_libraries}" != NONE; then
1797 if test -n "${x_libraries}"; then
1798 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1799 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1800 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1803 x_default_search_path=""
1804 x_search_path=${x_libraries}
1805 if test -z "${x_search_path}"; then
1806 x_search_path=/usr/lib
1808 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1809 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1811 ${x_library}/X11/%L/%T/%N%C%S:\
1812 ${x_library}/X11/%l/%T/%N%C%S:\
1813 ${x_library}/X11/%T/%N%C%S:\
1814 ${x_library}/X11/%L/%T/%N%S:\
1815 ${x_library}/X11/%l/%T/%N%S:\
1816 ${x_library}/X11/%T/%N%S"
1817 if test x"${x_default_search_path}" = x; then
1818 x_default_search_path=${x_search_path}
1820 x_default_search_path="${x_search_path}:${x_default_search_path}"
1824 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1826 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1827 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1830 if test x"${x_includes}" = x; then
1831 bitmapdir=/usr/include/X11/bitmaps
1833 # accumulate include directories that have X11 bitmap subdirectories
1835 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1836 if test -d "${bmd}/X11/bitmaps"; then
1837 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1839 if test -d "${bmd}/bitmaps"; then
1840 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1843 bitmapdir=${bmd_acc#:}
1846 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1848 NS_GNUSTEP_CONFIG=no
1851 tmp_CPPFLAGS="$CPPFLAGS"
1852 tmp_CFLAGS="$CFLAGS"
1853 CPPFLAGS="$CPPFLAGS -x objective-c"
1854 CFLAGS="$CFLAGS -x objective-c"
1857 if test "${with_ns}" != no; then
1858 if test "${opsys}" = darwin; then
1860 ns_appdir=`pwd`/nextstep/Emacs.app
1861 ns_appbindir=${ns_appdir}/Contents/MacOS
1862 ns_appresdir=${ns_appdir}/Contents/Resources
1863 ns_appsrc=Cocoa/Emacs.base
1864 ns_fontfile=macfont.o
1865 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1867 NS_GNUSTEP_CONFIG=yes
1868 GNU_OBJC_CFLAGS=$flags
1869 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1870 elif test -f $GNUSTEP_CONFIG_FILE; then
1872 dnl FIXME sourcing this several times in subshells seems inefficient.
1873 GNUSTEP_SYSTEM_HEADERS=$(
1874 . $GNUSTEP_CONFIG_FILE
1875 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1877 GNUSTEP_SYSTEM_LIBRARIES=$(
1878 . $GNUSTEP_CONFIG_FILE
1879 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1881 dnl I seemed to need these as well with GNUstep-startup 0.25.
1882 GNUSTEP_LOCAL_HEADERS=$(
1883 . $GNUSTEP_CONFIG_FILE
1884 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1886 GNUSTEP_LOCAL_LIBRARIES=$(
1887 . $GNUSTEP_CONFIG_FILE
1888 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1890 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1891 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1892 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1893 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1894 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1895 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1896 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1897 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1898 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1899 dnl If they had chosen to either define it or not, we could have
1900 dnl just used AC_CHECK_DECL here.
1901 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1902 emacs_cv_objc_exceptions,
1903 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1904 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1908 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1909 if test $emacs_cv_objc_exceptions = yes; then
1910 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1911 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1912 [Define if GNUstep uses ObjC exceptions.])
1913 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1916 if test $NS_IMPL_GNUSTEP = yes; then
1917 ns_appdir=`pwd`/nextstep/Emacs.app
1918 ns_appbindir=${ns_appdir}
1919 ns_appresdir=${ns_appdir}/Resources
1920 ns_appsrc=GNUstep/Emacs.base
1921 ns_fontfile=nsfont.o
1924 dnl This is only used while we test the NS headers, it gets reset below.
1925 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1926 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1928 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1929 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1930 are required for a Nextstep build are missing or cannot be compiled.
1931 Either fix this, or re-configure with the option '--without-ns'.])])
1934 if test "${NS_IMPL_COCOA}" = "yes"; then
1935 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1936 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1938 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1939 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1942 error "Mac OS X 10.6 or newer required";
1946 ns_osx_have_106=yes,
1948 AC_MSG_RESULT([$ns_osx_have_106])
1950 if test $ns_osx_have_106 = no; then
1951 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1956 AC_SUBST(LIBS_GNUSTEP)
1958 INSTALL_ARCH_INDEP_EXTRA=install-etc
1959 ns_self_contained=no
1962 if test "${HAVE_NS}" = yes; then
1963 if test "$with_toolkit_scroll_bars" = "no"; then
1964 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1967 window_system=nextstep
1968 # set up packaging dirs
1969 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1970 ns_self_contained=yes
1971 prefix=${ns_appresdir}
1972 exec_prefix=${ns_appbindir}
1973 dnl This one isn't really used, only archlibdir is.
1974 libexecdir="\${ns_appbindir}/libexec"
1975 archlibdir="\${ns_appbindir}/libexec"
1976 etcdocdir="\${ns_appresdir}/etc"
1977 etcdir="\${ns_appresdir}/etc"
1978 dnl FIXME maybe set datarootdir instead.
1979 dnl That would also get applications, icons, man.
1980 infodir="\${ns_appresdir}/info"
1981 mandir="\${ns_appresdir}/man"
1982 lispdir="\${ns_appresdir}/lisp"
1983 test "$locallisppathset" = no && locallisppath=""
1984 INSTALL_ARCH_INDEP_EXTRA=
1987 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1989 CFLAGS="$tmp_CFLAGS"
1990 CPPFLAGS="$tmp_CPPFLAGS"
1991 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1992 AC_SUBST(ns_self_contained)
1994 AC_SUBST(NS_OBJC_OBJ)
1996 if test "${HAVE_NS}" = yes; then
1998 [if the Objective C compiler supports instancetype],
1999 [emacs_cv_objc_instancetype],
2000 [AC_LANG_PUSH([Objective C])
2002 [AC_LANG_SOURCE([[@interface Test
2003 + (instancetype)test;
2005 emacs_cv_objc_instancetype=yes,
2006 emacs_cv_objc_instancetype=no)
2007 AC_LANG_POP([Objective C])])
2009 if test x$emacs_cv_objc_instancetype = xyes ; then
2010 AC_DEFINE(NATIVE_OBJC_INSTANCETYPE, 1,
2011 [Define if ObjC compiler supports instancetype natively.])
2023 if test "${with_w32}" != no; then
2026 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
2027 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
2028 cannot be found.])])
2031 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2034 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2039 if test "${opsys}" = "mingw32"; then
2040 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2041 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2042 #include <windows.h>
2043 #include <usp10.h>]],
2044 [[PIMAGE_NT_HEADERS pHeader;
2045 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2046 [emacs_cv_w32api=yes
2049 AC_MSG_RESULT($emacs_cv_w32api)
2050 if test "${emacs_cv_w32api}" = "no"; then
2051 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2062 if test "${HAVE_W32}" = "yes"; then
2063 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2064 if test "$with_toolkit_scroll_bars" = "no"; then
2065 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2067 AC_CHECK_TOOL(WINDRES, [windres],
2068 [AC_MSG_ERROR([No resource compiler found.])])
2069 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2070 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2071 EMACSRES="emacs.res"
2072 case "$canonical" in
2073 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2074 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2076 dnl Construct something of the form "24,4,0,0" with 4 components.
2077 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2079 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2080 AC_SUBST(comma_version)
2081 AC_SUBST(comma_space_version)
2082 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2083 if test "${opsys}" = "cygwin"; then
2084 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2085 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2086 # Tell the linker that emacs.res is an object (which we compile from
2087 # the rc file), not a linker script.
2088 W32_RES_LINK="-Wl,emacs.res"
2090 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2091 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2092 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2093 W32_RES_LINK="\$(EMACSRES)"
2094 CLIENTRES="emacsclient.res"
2095 CLIENTW="emacsclientw\$(EXEEXT)"
2096 FIRSTFILE_OBJ=firstfile.o
2099 LIBS_ECLIENT="-lcomctl32"
2100 LIB_WSOCK32="-lwsock32"
2101 NTLIB="ntlib.$ac_objext"
2102 XARGS_LIMIT="-s 10000"
2108 AC_SUBST(EMACS_MANIFEST)
2111 AC_SUBST(W32_RES_LINK)
2112 AC_SUBST(FIRSTFILE_OBJ)
2115 AC_SUBST(LIBS_ECLIENT)
2116 AC_SUBST(LIB_WSOCK32)
2118 AC_SUBST(XARGS_LIMIT)
2120 if test "${HAVE_W32}" = "yes"; then
2125 ## $window_system is now set to the window system we will
2133 case "${window_system}" in
2138 case "${with_x_toolkit}" in
2139 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2140 motif ) USE_X_TOOLKIT=MOTIF ;;
2142 term_header=gtkutil.h
2143 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2144 dnl USE_X_TOOLKIT is set.
2145 USE_X_TOOLKIT=none ;;
2146 gtk2 ) with_gtk2=yes
2147 term_header=gtkutil.h
2148 USE_X_TOOLKIT=none ;;
2149 gtk3 ) with_gtk3=yes
2150 term_header=gtkutil.h
2151 USE_X_TOOLKIT=none ;;
2152 no ) USE_X_TOOLKIT=none ;;
2153 dnl If user did not say whether to use a toolkit, make this decision later:
2154 dnl use the toolkit if we have gtk, or X11R5 or newer.
2155 * ) USE_X_TOOLKIT=maybe ;;
2159 term_header=nsterm.h
2162 term_header=w32term.h
2166 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2167 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2168 if test "$HAVE_XSERVER" = true ||
2169 test -n "$DISPLAY" ||
2171 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2172 test "$emacs_libX11" != '/usr/lib/libX11.*'
2175 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2176 were found. You should install the relevant development files for X
2177 and for the toolkit you want, such as Gtk+ or Motif. Also make
2178 sure you have development files for image handling, i.e.
2179 tiff, gif, jpeg, png and xpm.
2180 If you are sure you want Emacs compiled without X window support, pass
2186 # Does the opsystem file prohibit the use of the GNU malloc?
2187 # Assume not, until told otherwise.
2191 [whether malloc is Doug Lea style],
2192 [emacs_cv_var_doug_lea_malloc],
2193 [emacs_cv_var_doug_lea_malloc=no
2194 dnl Hooks do not work with address sanitization.
2195 if test "$emacs_cv_sanitize_address" != yes; then
2198 [[#include <malloc.h>
2199 static void hook (void) {}]],
2200 [[malloc_set_state (malloc_get_state ());
2201 __after_morecore_hook = hook;
2202 __malloc_initialize_hook = hook;]])],
2203 [emacs_cv_var_doug_lea_malloc=yes])
2205 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2210 test "$CANNOT_DUMP" = yes ||
2212 ## darwin ld insists on the use of malloc routines in the System framework.
2213 darwin | mingw32 | nacl | sol2-10) ;;
2214 cygwin) hybrid_malloc=yes
2216 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2219 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2220 && test "${UNEXEC_OBJ}" = unexelf.o; then
2226 if test "${system_malloc}" = "yes"; then
2227 AC_DEFINE([SYSTEM_MALLOC], 1,
2228 [Define to 1 to use the system memory allocator, even if it is not
2232 (The GNU allocators don't work with this system configuration.)"
2234 elif test "$hybrid_malloc" = yes; then
2235 AC_DEFINE(HYBRID_MALLOC, 1,
2236 [Define to use gmalloc before dumping and the system malloc after.])
2239 GNU_MALLOC_reason=" (only before dumping)"
2240 GMALLOC_OBJ=gmalloc.o
2243 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2244 VMLIMIT_OBJ=vm-limit.o
2246 AC_CHECK_HEADERS([sys/vlimit.h])
2247 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2250 [[extern char data_start[]; char ch;]],
2251 [[return data_start < &ch;]])],
2252 [emacs_cv_data_start=yes],
2253 [emacs_cv_data_start=no])])
2254 if test $emacs_cv_data_start = yes; then
2255 AC_DEFINE([HAVE_DATA_START], 1,
2256 [Define to 1 if data_start is the address of the start
2257 of the main data segment.])
2260 AC_SUBST([HYBRID_MALLOC])
2261 AC_SUBST(GMALLOC_OBJ)
2262 AC_SUBST(VMLIMIT_OBJ)
2264 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2265 if test "$GNU_MALLOC" = yes ; then
2267 (Using Doug Lea's new malloc from the GNU C Library.)"
2269 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2270 [Define to 1 if the system memory allocator is Doug Lea style,
2271 with malloc hooks and malloc_set_state.])
2273 ## Use mmap directly for allocating larger buffers.
2274 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2275 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2276 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2278 mingw32|gnu*) REL_ALLOC=no ;;
2282 if test x"${REL_ALLOC}" = x; then
2283 REL_ALLOC=${GNU_MALLOC}
2286 use_mmap_for_buffers=no
2288 mingw32) use_mmap_for_buffers=yes ;;
2292 if test $use_mmap_for_buffers = yes; then
2293 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2297 LIBS="$LIBS_SYSTEM $LIBS"
2299 dnl FIXME replace main with a function we actually want from this library.
2300 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2302 dnl Check for the POSIX thread library.
2304 AC_CHECK_HEADERS_ONCE(pthread.h)
2305 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2306 AC_CACHE_CHECK([for pthread library],
2307 [emacs_cv_pthread_lib],
2308 [emacs_cv_pthread_lib=no
2310 for emacs_pthread_lib in 'none needed' -lpthread; do
2311 case $emacs_pthread_lib in
2312 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2316 [[#include <pthread.h>
2318 sigset_t old_mask, new_mask;
2319 void noop (void) {}]],
2320 [[pthread_t th = pthread_self ();
2322 status += pthread_create (&th, 0, 0, 0);
2323 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2324 status += pthread_kill (th, 0);
2325 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2326 || defined DOUG_LEA_MALLOC)
2327 /* Test for pthread_atfork only if gmalloc uses it,
2328 as older-style hosts like MirBSD 10 lack it. */
2329 status += pthread_atfork (noop, noop, noop);
2332 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2334 if test "$emacs_cv_pthread_lib" != no; then
2338 if test "$emacs_cv_pthread_lib" != no; then
2339 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2340 case $emacs_cv_pthread_lib in
2341 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2343 ac_cv_func_pthread_sigmask=yes
2344 # Some systems optimize for single-threaded programs by default, and
2345 # need special flags to disable these optimizations. For example, the
2346 # definition of 'errno' in <errno.h>.
2349 AC_DEFINE([_REENTRANT], 1,
2350 [Define to 1 if your system requires this in multithreaded code.]);;
2352 AC_DEFINE([_THREAD_SAFE], 1,
2353 [Define to 1 if your system requires this in multithreaded code.]);;
2357 AC_SUBST([LIB_PTHREAD])
2359 AC_MSG_CHECKING([for thread support])
2361 if test "$with_threads" = yes; then
2362 if test "$emacs_cv_pthread_lib" != no; then
2363 AC_DEFINE(THREADS_ENABLED, 1,
2364 [Define to 1 if you want elisp thread support.])
2366 elif test "${opsys}" = "mingw32"; then
2367 dnl MinGW can do native Windows threads even without pthreads
2368 AC_DEFINE(THREADS_ENABLED, 1,
2369 [Define to 1 if you want elisp thread support.])
2373 AC_MSG_RESULT([$threads_enabled])
2375 dnl Check for need for bigtoc support on IBM AIX
2379 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2381 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2382 *) gdb_cv_bigtoc=-bbigtoc ;;
2385 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2386 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2391 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2392 # is for the tests that follow. We set them back later on.
2394 REAL_CFLAGS="$CFLAGS"
2395 REAL_CPPFLAGS="$CPPFLAGS"
2398 if test "${HAVE_X11}" = "yes"; then
2399 DEFS="$C_SWITCH_X_SITE $DEFS"
2400 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2402 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2403 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2405 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2406 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2407 # but it's more convenient here to set LD_RUN_PATH since this
2408 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2409 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2410 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2414 if test "${opsys}" = "gnu-linux"; then
2415 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2416 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2417 [[XOpenDisplay ("foo");]])],
2418 [xgnu_linux_first_failure=no],
2419 [xgnu_linux_first_failure=yes])
2420 if test "${xgnu_linux_first_failure}" = "yes"; then
2421 OLD_CPPFLAGS="$CPPFLAGS"
2423 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2424 LIBS="$LIBS -b i486-linuxaout"
2425 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2426 [[XOpenDisplay ("foo");]])],
2427 [xgnu_linux_second_failure=no],
2428 [xgnu_linux_second_failure=yes])
2429 if test "${xgnu_linux_second_failure}" = "yes"; then
2430 # If we get the same failure with -b, there is no use adding -b.
2431 # So leave it out. This plays safe.
2434 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2435 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2438 CPPFLAGS=$OLD_CPPFLAGS
2445 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2446 # header files included from there.
2447 AC_MSG_CHECKING(for Xkb)
2448 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2449 #include <X11/XKBlib.h>]],
2450 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2451 emacs_xkb=yes, emacs_xkb=no)
2452 AC_MSG_RESULT($emacs_xkb)
2453 if test $emacs_xkb = yes; then
2454 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2457 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2458 XScreenNumberOfScreen)
2461 if test "${window_system}" = "x11"; then
2462 AC_MSG_CHECKING(X11 version 6)
2463 AC_CACHE_VAL(emacs_cv_x11_version_6,
2464 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2465 [[#if XlibSpecificationRelease < 6
2468 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2469 if test $emacs_cv_x11_version_6 = yes; then
2470 AC_MSG_RESULT(6 or newer)
2471 AC_DEFINE(HAVE_X11R6, 1,
2472 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2473 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2474 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2478 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2479 [Define if you have usable X11R6-style XIM support.])
2483 AC_MSG_RESULT(before 6)
2488 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2490 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2491 if test "${with_rsvg}" != "no"; then
2492 RSVG_REQUIRED=2.11.0
2493 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2495 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2496 AC_SUBST(RSVG_CFLAGS)
2499 if test $HAVE_RSVG = yes; then
2500 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2501 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2502 # Windows loads librsvg dynamically
2503 if test "${opsys}" = "mingw32"; then
2511 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2512 if test "${with_imagemagick}" != "no"; then
2513 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2514 ## 6.8.2 makes Emacs crash; see Bug#13867.
2515 ## 7 and later have not been ported to; See Bug#25967.
2516 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2 Wand < 7"
2517 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2519 if test $HAVE_IMAGEMAGICK = yes; then
2522 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2523 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2524 AC_CHECK_FUNCS([MagickRelinquishMemory MagickExportImagePixels \
2525 MagickMergeImageLayers MagickAutoOrientImage])
2528 # Check that ImageMagick links. It does not link on Fedora 25
2529 # with './configure CC=clang', as pkg-config outputs flags like
2530 # -lomp that work for GCC but not Clang.
2531 if test "$ac_cv_func_MagickRelinquishMemory" != yes; then
2535 if test $HAVE_IMAGEMAGICK = yes; then
2536 AC_DEFINE([HAVE_IMAGEMAGICK], 1, [Define to 1 if using ImageMagick.])
2541 AC_SUBST([IMAGEMAGICK_CFLAGS])
2542 AC_SUBST([IMAGEMAGICK_LIBS])
2546 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2547 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2548 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2549 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2550 GETADDRINFO_A_LIBS="-lanl"
2551 AC_SUBST(GETADDRINFO_A_LIBS)
2556 gtk_term_header=$term_header
2559 if test "${opsys}" != "mingw32"; then
2560 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2563 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2565 dnl Checks for libraries.
2566 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2567 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2568 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2569 AC_MSG_ERROR($GTK_PKG_ERRORS)
2571 if test "$pkg_check_gtk" = "yes"; then
2572 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2573 GTK_OBJ=emacsgtkfixed.o
2574 gtk_term_header=gtkutil.h
2575 USE_GTK_TOOLKIT="GTK3"
2576 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2577 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2578 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2579 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2580 [Define to 1 to disable Glib deprecation warnings.])
2584 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2588 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2591 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2593 dnl Checks for libraries.
2594 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2595 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2596 if test "$pkg_check_gtk" = "no" &&
2597 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2599 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2601 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2608 if test x"$pkg_check_gtk" = xyes; then
2611 CFLAGS="$CFLAGS $GTK_CFLAGS"
2612 LIBS="$GTK_LIBS $LIBS"
2613 dnl Try to compile a simple GTK program.
2614 AC_MSG_CHECKING([whether GTK compiles])
2618 [[/* Check the Gtk and Glib APIs. */
2619 #include <gtk/gtk.h>
2620 #include <glib-object.h>
2622 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2626 GtkSettings *gs = 0;
2627 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2628 strict C prohibits this. Use gtk_main_iteration to test that the
2629 libraries are there. */
2630 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2631 0, 0, 0, G_CALLBACK (callback), 0))
2632 gtk_main_iteration ();
2635 AC_MSG_RESULT([$GTK_COMPILES])
2636 if test "${GTK_COMPILES}" != "yes"; then
2638 if test "$USE_X_TOOLKIT" != "maybe"; then
2639 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2642 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2644 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2645 GTK_OBJ="gtkutil.o $GTK_OBJ"
2646 term_header=$gtk_term_header
2648 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2649 closing open displays. This is no problem if you just use
2650 one display, but if you use more than one and close one of them
2652 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2660 if test "${HAVE_GTK}" = "yes"; then
2662 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2663 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2664 if test "$with_toolkit_scroll_bars" != no; then
2665 with_toolkit_scroll_bars=yes
2668 dnl Check if we have the old file selection dialog declared and
2669 dnl in the link library. In 2.x it may be in the library,
2670 dnl but not declared if deprecated featured has been selected out.
2671 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2672 HAVE_GTK_FILE_SELECTION=no
2673 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2674 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2675 #include <gtk/gtk.h>])
2676 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2677 AC_CHECK_FUNCS(gtk_file_selection_new)
2680 dnl Same as above for gtk_handle_box.
2681 HAVE_GTK_HANDLE_BOX=no
2682 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2683 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2684 #include <gtk/gtk.h>])
2685 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2686 AC_CHECK_FUNCS(gtk_handle_box_new)
2689 dnl Same as above for gtk_tearoff_menu_item.
2690 HAVE_GTK_TEAROFF_MENU_ITEM=no
2691 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2692 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2693 #include <gtk/gtk.h>])
2694 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2695 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2698 dnl Check for functions introduced in 2.14 and later.
2699 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2700 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2701 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2702 gtk_orientable_set_orientation \
2703 gtk_window_set_has_resize_grip)
2705 term_header=gtkutil.h
2709 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2712 if test "$with_xwidgets" != "no"; then
2713 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2714 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2716 WEBKIT_REQUIRED=2.12
2717 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2718 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2719 HAVE_XWIDGETS=$HAVE_WEBKIT
2720 test $HAVE_XWIDGETS = yes ||
2721 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2723 XWIDGETS_OBJ=xwidget.o
2724 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2726 AC_SUBST(XWIDGETS_OBJ)
2731 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2732 dnl other platforms.
2735 if test "${with_dbus}" = "yes"; then
2736 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2737 if test "$HAVE_DBUS" = yes; then
2738 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2739 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2740 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2743 LIBS="$LIBS $DBUS_LIBS"
2744 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2745 dbus_type_is_valid \
2746 dbus_validate_bus_name \
2747 dbus_validate_path \
2748 dbus_validate_interface \
2749 dbus_validate_member)
2754 AC_SUBST(DBUS_CFLAGS)
2758 dnl GSettings has been tested under GNU/Linux only.
2760 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2761 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2762 if test "$HAVE_GSETTINGS" = "yes"; then
2764 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2766 LIBS="$LIBS $GSETTINGS_LIBS"
2767 AC_MSG_CHECKING([whether GSettings is in gio])
2770 [[/* Check that gsettings really is present. */
2771 #include <glib-object.h>
2772 #include <gio/gio.h>
2775 GSettings *settings;
2776 GVariant *val = g_settings_get_value (settings, "");
2778 [], HAVE_GSETTINGS=no)
2779 AC_MSG_RESULT([$HAVE_GSETTINGS])
2781 if test "$HAVE_GSETTINGS" = "yes"; then
2782 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2783 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2784 SETTINGS_LIBS="$GSETTINGS_LIBS"
2785 test "$with_gconf" = "yes" || with_gconf=no
2792 dnl GConf has been tested under GNU/Linux only.
2793 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2795 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" != "no"; then
2796 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2797 if test "$HAVE_GCONF" = yes; then
2798 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2799 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2800 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2801 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2805 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2806 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2807 if test "$HAVE_GOBJECT" = "yes"; then
2808 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2809 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2811 SAVE_CFLAGS="$CFLAGS"
2813 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2814 LIBS="$SETTINGS_LIBS $LIBS"
2815 CFLAGS="$SAVE_CFLAGS"
2818 AC_SUBST(SETTINGS_CFLAGS)
2819 AC_SUBST(SETTINGS_LIBS)
2822 dnl SELinux is available for GNU/Linux only.
2825 if test "${with_selinux}" = "yes"; then
2826 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2827 if test "$HAVE_LIBSELINUX" = yes; then
2828 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2829 LIBSELINUX_LIBS=-lselinux
2832 AC_SUBST(LIBSELINUX_LIBS)
2835 if test "${with_gnutls}" = "yes" ; then
2836 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2837 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2838 if test "${HAVE_GNUTLS}" = "yes"; then
2839 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2842 # Windows loads GnuTLS dynamically
2843 if test "${opsys}" = "mingw32"; then
2848 AC_SUBST(LIBGNUTLS_LIBS)
2849 AC_SUBST(LIBGNUTLS_CFLAGS)
2852 if test "${with_libsystemd}" = "yes" ; then
2853 dnl This code has been tested with libsystemd 222 and later.
2854 dnl FIXME: Find the earliest version number for which Emacs should work,
2855 dnl and change '222' to that number.
2856 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2857 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2858 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2859 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2863 AC_SUBST(LIBSYSTEMD_LIBS)
2864 AC_SUBST(LIBSYSTEMD_CFLAGS)
2869 dnl MS Windows native file monitor is available for mingw32 only.
2870 case $with_file_notification,$opsys in
2872 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2873 this is only supported on MS-Windows native and MinGW32 builds.
2874 Consider using gfile instead.])
2876 w32,* | yes,mingw32)
2877 AC_CHECK_HEADER(windows.h)
2878 if test "$ac_cv_header_windows_h" = yes ; then
2879 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2880 NOTIFY_OBJ=w32notify.o
2881 NOTIFY_SUMMARY="yes (w32)"
2885 dnl inotify is available only on GNU/Linux.
2886 case $with_file_notification,$NOTIFY_OBJ in
2888 AC_CHECK_HEADER(sys/inotify.h)
2889 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2890 AC_CHECK_FUNC(inotify_init1)
2891 if test "$ac_cv_func_inotify_init1" = yes; then
2892 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2893 NOTIFY_OBJ=inotify.o
2894 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2899 dnl kqueue is available on BSD-like systems.
2900 case $with_file_notification,$NOTIFY_OBJ in
2902 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2903 if test "$HAVE_KQUEUE" = "yes"; then
2904 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2905 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2906 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2907 NOTIFY_LIBS=$KQUEUE_LIBS
2909 NOTIFY_SUMMARY="yes -lkqueue"
2911 AC_SEARCH_LIBS(kqueue, [])
2912 if test "$ac_cv_search_kqueue" != no; then
2913 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2915 NOTIFY_SUMMARY="yes (kqueue)"
2920 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2921 dnl has been added in glib 2.24. It has been tested under
2923 case $with_file_notification,$NOTIFY_OBJ in
2925 if test "${HAVE_NS}" = yes; then
2926 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2927 Consider kqueue instead.])
2929 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2930 if test "$HAVE_GFILENOTIFY" = "yes"; then
2931 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2932 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2933 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2934 NOTIFY_OBJ=gfilenotify.o
2935 NOTIFY_SUMMARY="yes -lgio (gfile)"
2940 case $with_file_notification,$NOTIFY_OBJ in
2941 yes,* | no,* | *,?*) ;;
2942 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2945 if test -n "$NOTIFY_OBJ"; then
2946 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2948 AC_SUBST(NOTIFY_CFLAGS)
2949 AC_SUBST(NOTIFY_LIBS)
2950 AC_SUBST(NOTIFY_OBJ)
2952 dnl Do not put whitespace before the #include statements below.
2953 dnl Older compilers (eg sunos4 cc) choke on it.
2956 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2957 if test "$with_xaw3d" != no; then
2958 AC_CACHE_VAL(emacs_cv_xaw3d,
2959 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2960 #include <X11/Intrinsic.h>
2961 #include <X11/Xaw3d/Simple.h>]],
2963 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2964 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2965 emacs_cv_xaw3d=no)])
2969 if test $emacs_cv_xaw3d = yes; then
2970 AC_MSG_CHECKING(for xaw3d)
2971 AC_MSG_RESULT([yes; using Lucid toolkit])
2975 AC_DEFINE(HAVE_XAW3D, 1,
2976 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2978 AC_MSG_CHECKING(for xaw3d)
2980 AC_MSG_CHECKING(for libXaw)
2981 AC_CACHE_VAL(emacs_cv_xaw,
2982 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2983 #include <X11/Intrinsic.h>
2984 #include <X11/Xaw/Simple.h>]],
2988 if test $emacs_cv_xaw = yes; then
2989 AC_MSG_RESULT([yes; using Lucid toolkit])
2992 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2993 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2995 AC_MSG_ERROR([No X toolkit could be found.
2996 If you are sure you want Emacs compiled without an X toolkit, pass
2998 to configure. Otherwise, install the development libraries for the toolkit
2999 that you want to use (e.g. Gtk+) and re-run configure.])
3004 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
3008 if test "${USE_X_TOOLKIT}" != "none"; then
3009 AC_MSG_CHECKING(X11 toolkit version)
3010 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
3011 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
3012 [[#if XtSpecificationRelease < 6
3015 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
3016 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
3017 if test $emacs_cv_x11_toolkit_version_6 = yes; then
3018 AC_MSG_RESULT(6 or newer)
3019 AC_DEFINE(HAVE_X11XTR6, 1,
3020 [Define to 1 if you have the X11R6 or newer version of Xt.])
3021 LIBXTR6="-lSM -lICE"
3023 ## Use libw.a along with X11R6 Xt.
3024 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
3027 AC_MSG_RESULT(before 6)
3030 dnl If using toolkit, check whether libXmu.a exists.
3031 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
3033 if test x$HAVE_X11XTR6 = xyes; then
3034 OTHERLIBS='-lXt -lSM -lICE'
3038 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
3039 if test "X$LIBS" != "X$OLDLIBS"; then
3040 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
3043 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3049 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3050 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3051 if test -d /usr/include/openmotif; then
3052 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3053 emacs_cv_openmotif=yes
3054 case "$canonical" in
3055 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3056 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3059 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3062 emacs_cv_openmotif=no
3064 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3065 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3066 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3069 Motif version prior to 2.1.
3071 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3072 if test $emacs_cv_motif_version_2_1 = yes; then
3073 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3074 if test x$emacs_cv_openmotif = xyes; then
3075 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3078 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3079 # We put this in CFLAGS temporarily to precede other -I options
3080 # that might be in CFLAGS temporarily.
3081 # We put this in CPPFLAGS where it precedes the other -I options.
3082 OLD_CPPFLAGS=$CPPFLAGS
3084 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3085 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3086 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3088 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3089 if test $emacs_cv_lesstif = yes; then
3090 # Make sure this -I option remains in CPPFLAGS after it is set
3091 # back to REAL_CPPFLAGS.
3092 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3093 # have those other -I options anyway. Ultimately, having this
3094 # directory ultimately in CPPFLAGS will be enough.
3095 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3096 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3099 CPPFLAGS=$OLD_CPPFLAGS
3102 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3103 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3106 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3107 dnl using Motif or Xaw3d is available, and unless
3108 dnl --with-toolkit-scroll-bars=no was specified.
3110 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3111 [Define to 1 if we should use toolkit scroll bars.])dnl
3112 USE_TOOLKIT_SCROLL_BARS=no
3113 if test "${with_toolkit_scroll_bars}" != "no"; then
3114 if test "${USE_X_TOOLKIT}" != "none"; then
3115 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3116 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3118 USE_TOOLKIT_SCROLL_BARS=yes
3119 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3120 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3121 USE_TOOLKIT_SCROLL_BARS=yes
3123 elif test "${HAVE_GTK}" = "yes"; then
3124 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3125 USE_TOOLKIT_SCROLL_BARS=yes
3126 elif test "${HAVE_NS}" = "yes"; then
3127 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3128 USE_TOOLKIT_SCROLL_BARS=yes
3129 elif test "${HAVE_W32}" = "yes"; then
3130 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3131 USE_TOOLKIT_SCROLL_BARS=yes
3135 dnl See if XIM is available.
3136 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3137 #include <X11/Xlib.h>
3138 #include <X11/Xresource.h>]],
3139 [[XIMProc callback;]])],
3141 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3144 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3146 if test "${with_xim}" != "no"; then
3147 AC_DEFINE(USE_XIM, 1,
3148 [Define to 1 if we should use XIM, if it is available.])
3152 if test "${HAVE_XIM}" != "no"; then
3154 if test "$GCC" = yes; then
3155 CFLAGS="$CFLAGS --pedantic-errors"
3157 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3158 #include <X11/Xlib.h>
3159 #include <X11/Xresource.h>]],
3165 XPointer *client_data;
3167 /* If we're not using GCC, it's probably not XFree86, and this is
3168 probably right, but we can't use something like --pedantic-errors. */
3169 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3170 char*, XIMProc, XPointer*);
3172 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3174 [emacs_cv_arg6_star=yes])
3175 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3176 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3177 either XPointer or XPointer*.])dnl
3178 if test "$emacs_cv_arg6_star" = yes; then
3179 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3181 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3186 ### Start of font-backend (under any platform) section.
3187 # (nothing here yet -- this is a placeholder)
3188 ### End of font-backend (under any platform) section.
3190 ### Start of font-backend (under X11) section.
3191 if test "${HAVE_X11}" = "yes"; then
3192 ## Use -lXft if available, unless '--with-xft=no'.
3194 if test "x${with_x}" = "xno"; then
3198 if test "$with_xft" != no; then
3199 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3200 with_xft=$HAVE_FONTCONFIG
3203 if test "x${with_xft}" != "xno"; then
3205 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3206 ## Because xftfont.c uses XRenderQueryExtension, we also
3207 ## need to link to -lXrender.
3209 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3210 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3211 OLD_CPPFLAGS="$CPPFLAGS"
3212 OLD_CFLAGS="$CFLAGS"
3214 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3215 CFLAGS="$CFLAGS $XFT_CFLAGS"
3216 XFT_LIBS="-lXrender $XFT_LIBS"
3217 LIBS="$XFT_LIBS $LIBS"
3218 AC_CHECK_HEADER(X11/Xft/Xft.h,
3219 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3220 [[#include <X11/X.h>]])
3222 if test "${HAVE_XFT}" = "yes"; then
3223 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3225 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3226 fi # "${HAVE_XFT}" = "yes"
3227 CPPFLAGS=$OLD_CPPFLAGS
3230 fi # "$HAVE_XFT" != no
3231 fi # "x${with_xft}" != "xno"
3233 ## We used to allow building with FreeType and without Xft.
3234 ## However, the ftx font backend driver is not in good shape.
3235 if test "$HAVE_XFT" != "yes"; then
3236 dnl For the "Does Emacs use" message at the end.
3240 dnl Strict linkers fail with
3241 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3242 dnl if -lfreetype is not specified.
3243 dnl The following is needed to set FREETYPE_LIBS.
3244 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3246 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3250 if test "${HAVE_FREETYPE}" = "yes"; then
3251 AC_DEFINE(HAVE_FREETYPE, 1,
3252 [Define to 1 if using the freetype and fontconfig libraries.])
3253 if test "${with_libotf}" != "no"; then
3254 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3255 if test "$HAVE_LIBOTF" = "yes"; then
3256 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3257 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3258 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3259 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3260 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3261 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3262 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3266 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3267 dnl Does the new font backend require it, or can it work without it?
3271 if test "${HAVE_LIBOTF}" = yes; then
3272 if test "${with_m17n_flt}" != "no"; then
3273 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3274 if test "$HAVE_M17N_FLT" = "yes"; then
3275 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3286 ### End of font-backend (under X11) section.
3288 AC_SUBST(FREETYPE_CFLAGS)
3289 AC_SUBST(FREETYPE_LIBS)
3290 AC_SUBST(FONTCONFIG_CFLAGS)
3291 AC_SUBST(FONTCONFIG_LIBS)
3292 AC_SUBST(LIBOTF_CFLAGS)
3293 AC_SUBST(LIBOTF_LIBS)
3294 AC_SUBST(M17N_FLT_CFLAGS)
3295 AC_SUBST(M17N_FLT_LIBS)
3298 if test "${HAVE_X11}" = "yes"; then
3299 if test "${with_cairo}" != "no"; then
3300 CAIRO_REQUIRED=1.12.0
3301 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3302 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3303 if test $HAVE_CAIRO = yes; then
3304 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3306 AC_MSG_ERROR([cairo requested but not found.])
3309 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3310 LIBS="$LIBS $CAIRO_LIBS"
3311 AC_SUBST(CAIRO_CFLAGS)
3312 AC_SUBST(CAIRO_LIBS)
3316 if test "${HAVE_X11}" = "yes"; then
3317 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3318 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3319 if test "${HAVE_XCB}" = "yes"; then
3320 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3321 if test "${HAVE_X11_XCB}" = "yes"; then
3322 AC_DEFINE(USE_XCB, 1,
3323 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3324 X11/XCB programming.])
3325 XCB_LIBS="-lX11-xcb -lxcb"
3331 ### Use -lXpm if available, unless '--with-xpm=no'.
3332 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3333 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3334 ### we need to set LDFLAGS accordingly.
3337 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3338 if test "${with_xpm}" != "no"; then
3339 SAVE_LDFLAGS="$LDFLAGS"
3340 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3341 AC_CHECK_HEADER(noX/xpm.h,
3342 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3343 if test "${HAVE_XPM}" = "yes"; then
3344 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3345 AC_EGREP_CPP(no_return_alloc_pixels,
3346 [#include "noX/xpm.h"
3347 #ifndef XpmReturnAllocPixels
3348 no_return_alloc_pixels
3350 ], HAVE_XPM=no, HAVE_XPM=yes)
3352 if test "${HAVE_XPM}" = "yes"; then
3356 LDFLAGS="$SAVE_LDFLAGS"
3361 if test "${HAVE_XPM}" = "yes"; then
3362 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3367 if test "${HAVE_X11}" = "yes"; then
3368 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3369 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3371 if test "${with_xpm}" != "no"; then
3372 AC_CHECK_HEADER(X11/xpm.h,
3373 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3374 if test "${HAVE_XPM}" = "yes"; then
3375 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3376 AC_EGREP_CPP(no_return_alloc_pixels,
3377 [#include "X11/xpm.h"
3378 #ifndef XpmReturnAllocPixels
3379 no_return_alloc_pixels
3381 ], HAVE_XPM=no, HAVE_XPM=yes)
3383 if test "${HAVE_XPM}" = "yes"; then
3391 if test "${HAVE_XPM}" = "yes"; then
3392 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3394 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3395 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3400 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3401 ### slightly different requirements wrt image libraries (it doesn't
3402 ### use -lXpm because it loads the xpm shared library dynamically at
3404 if test "${opsys}" = "mingw32"; then
3405 if test "${with_xpm}" != "no"; then
3406 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3410 if test "${HAVE_XPM}" = "yes"; then
3411 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3417 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3420 if test "${with_jpeg}" != "no"; then
3421 AC_CACHE_CHECK([for jpeglib 6b or later],
3424 for emacs_cv_jpeglib in yes -ljpeg no; do
3425 case $emacs_cv_jpeglib in
3428 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3432 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3433 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3434 #include <jpeglib.h>
3436 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3437 struct jpeg_decompress_struct cinfo;
3440 jpeg_create_decompress (&cinfo);
3441 WARNMS (&cinfo, JWRN_JPEG_EOF);
3442 jpeg_destroy_decompress (&cinfo);
3444 [emacs_link_ok=yes],
3447 test $emacs_link_ok = yes && break
3449 if test "$emacs_cv_jpeglib" != no; then
3451 AC_DEFINE([HAVE_JPEG], 1,
3452 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3453 ### mingw32 doesn't use -ljpeg, since it loads the library
3454 ### dynamically when needed, and doesn't want a run-time
3455 ### dependency on the jpeglib DLL.
3456 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3457 && LIBJPEG=$emacs_cv_jpeglib
3464 if test "${with_zlib}" != "no"; then
3466 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3468 case $ac_cv_search_inflateEnd in
3469 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3472 if test "${HAVE_ZLIB}" = "yes"; then
3473 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3474 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3475 if test "${opsys}" = "mingw32"; then
3481 ### Dynamic modules support
3486 cygwin|mingw32) MODULES_SUFFIX=".dll" ;;
3487 *) MODULES_SUFFIX=".so" ;;
3489 if test "${with_modules}" != "no"; then
3495 cygwin|mingw32|darwin)
3499 # BSD systems have dlopen in libc.
3500 AC_CHECK_FUNC([dlopen], [HAVE_MODULES=yes])
3504 if test "${HAVE_MODULES}" = no; then
3505 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3508 LIBS="$LIBS $LIBMODULES"
3509 AC_CHECK_FUNCS([dladdr dlfunc])
3514 if test "${HAVE_MODULES}" = yes; then
3515 MODULES_OBJ="dynlib.o emacs-module.o"
3516 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3517 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3518 [System extension for dynamic libraries])
3520 AC_SUBST(MODULES_OBJ)
3521 AC_SUBST(LIBMODULES)
3522 AC_SUBST(HAVE_MODULES)
3523 AC_SUBST(MODULES_SUFFIX)
3525 AC_CONFIG_FILES([src/emacs-module.h])
3526 AC_SUBST_FILE([module_env_snippet_25])
3527 AC_SUBST_FILE([module_env_snippet_26])
3528 module_env_snippet_25="$srcdir/src/module-env-25.h"
3529 module_env_snippet_26="$srcdir/src/module-env-26.h"
3531 ### Use -lpng if available, unless '--with-png=no'.
3535 if test "${NS_IMPL_COCOA}" = yes; then
3537 elif test "${with_png}" != no; then
3538 # mingw32 loads the library dynamically.
3539 if test "$opsys" = mingw32; then
3540 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3541 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3542 AC_MSG_CHECKING([for png])
3543 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3544 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3545 # libpng-config does not work; configure by hand.
3546 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3547 # in /usr/include/libpng.
3548 if test -r /usr/include/libpng/png.h &&
3549 test ! -r /usr/include/png.h; then
3550 png_cflags=-I/usr/include/libpng
3558 CFLAGS="$CFLAGS $png_cflags"
3559 LIBS="$png_ldflags -lz -lm $LIBS"
3561 [AC_LANG_PROGRAM([[#include <png.h>]],
3562 [[return !png_get_channels (0, 0);]])],
3564 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3566 # $LIBPNG requires explicit -lz in some cases.
3567 # We don't know what those cases are, exactly, so play it safe and
3568 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3569 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3570 LIBPNG="$LIBPNG -lz"
3574 AC_MSG_RESULT([$HAVE_PNG])
3577 if test $HAVE_PNG = yes; then
3578 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3581 CFLAGS="$CFLAGS $PNG_CFLAGS"
3582 AC_CHECK_DECL([png_longjmp],
3584 [AC_DEFINE([PNG_DEPSTRUCT], [],
3585 [Define to empty to suppress deprecation warnings when building
3586 with --enable-gcc-warnings and with libpng versions before 1.5,
3587 which lack png_longjmp.])],
3593 AC_SUBST(PNG_CFLAGS)
3595 ### Use -ltiff if available, unless '--with-tiff=no'.
3596 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3599 if test "${opsys}" = "mingw32"; then
3600 if test "${with_tiff}" != "no"; then
3601 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3603 if test "${HAVE_TIFF}" = "yes"; then
3604 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3606 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3607 if test "${with_tiff}" != "no"; then
3608 AC_CHECK_HEADER(tiffio.h,
3610 # At least one tiff package requires the jpeg library.
3611 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3612 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3615 if test "${HAVE_TIFF}" = "yes"; then
3616 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3617 dnl FIXME -lz -lm, as per libpng?
3623 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3624 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3627 if test "${opsys}" = "mingw32"; then
3628 if test "${with_gif}" != "no"; then
3629 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3631 if test "${HAVE_GIF}" = "yes"; then
3632 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3634 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3635 || test "${HAVE_W32}" = "yes"; then
3636 AC_CHECK_HEADER(gif_lib.h,
3637 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3638 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3639 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3640 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3642 if test "$HAVE_GIF" = yes; then
3644 elif test "$HAVE_GIF" = maybe; then
3645 # If gif_lib.h but no libgif, try libungif.
3646 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3647 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3650 if test "${HAVE_GIF}" = "yes"; then
3651 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3656 dnl Check for required libraries.
3659 if test "${HAVE_X11}" = "yes"; then
3660 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3661 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3662 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3663 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3664 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3665 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3666 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3667 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3668 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3669 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3671 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3672 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3673 if test "X${MISSING}" != X; then
3674 AC_MSG_ERROR([The following required libraries were not found:
3676 Maybe some development libraries/packages are missing?
3677 If you don't want to link with them give
3679 as options to configure])
3682 ### Use -lgpm if available, unless '--with-gpm=no'.
3685 if test "${with_gpm}" != "no"; then
3686 AC_CHECK_HEADER(gpm.h,
3687 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3689 if test "${HAVE_GPM}" = "yes"; then
3690 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3696 dnl Check for malloc/malloc.h on darwin
3697 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3700 ### Use NeXTstep API to implement GUI.
3701 if test "${HAVE_NS}" = "yes"; then
3702 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3703 if test "${NS_IMPL_COCOA}" = "yes"; then
3704 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3706 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3707 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3708 if test $NS_GNUSTEP_CONFIG != yes; then
3709 # See also .m.o rule in src/Makefile.in. */
3710 # FIXME: are all these flags really needed? Document here why. */
3711 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3712 ## Extra CFLAGS applied to src/*.m files.
3713 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3719 ### Use session management (-lSM -lICE) if available
3722 if test "${HAVE_X11}" = "yes"; then
3723 AC_CHECK_HEADER(X11/SM/SMlib.h,
3724 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3726 if test "${HAVE_X_SM}" = "yes"; then
3727 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3733 ### Use XRandr (-lXrandr) if available
3735 if test "${HAVE_X11}" = "yes"; then
3736 XRANDR_REQUIRED=1.2.2
3737 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3738 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3739 if test $HAVE_XRANDR = no; then
3740 # Test old way in case pkg-config doesn't have it (older machines).
3741 # Include Xrender.h by hand to work around bug in older Xrandr.h
3742 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3743 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3744 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3745 [], [AC_INCLUDES_DEFAULT
3746 #include <X11/extensions/Xrender.h>])
3747 if test $HAVE_XRANDR = yes; then
3748 XRANDR_LIBS=-lXrandr
3751 if test $HAVE_XRANDR = yes; then
3752 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3755 AC_SUBST(XRANDR_CFLAGS)
3756 AC_SUBST(XRANDR_LIBS)
3758 ### Use Xinerama (-lXinerama) if available
3760 if test "${HAVE_X11}" = "yes"; then
3761 XINERAMA_REQUIRED=1.0.2
3762 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3763 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3764 if test $HAVE_XINERAMA = no; then
3765 # Test old way in case pkg-config doesn't have it (older machines).
3766 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3767 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3768 if test $HAVE_XINERAMA = yes; then
3769 XINERAMA_LIBS=-lXinerama
3772 if test $HAVE_XINERAMA = yes; then
3773 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3776 AC_SUBST(XINERAMA_CFLAGS)
3777 AC_SUBST(XINERAMA_LIBS)
3779 ### Use Xfixes (-lXfixes) if available
3781 if test "${HAVE_X11}" = "yes"; then
3782 XFIXES_REQUIRED=4.0.0
3783 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3784 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3785 if test $HAVE_XFIXES = no; then
3786 # Test old way in case pkg-config doesn't have it (older machines).
3787 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3788 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3789 if test $HAVE_XFIXES = yes; then
3790 XFIXES_LIBS=-lXfixes
3793 if test $HAVE_XFIXES = yes; then
3794 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3797 AC_SUBST(XFIXES_CFLAGS)
3798 AC_SUBST(XFIXES_LIBS)
3800 ### Use Xdbe (-lXdbe) if available
3802 if test "${HAVE_X11}" = "yes"; then
3803 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3804 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3806 [#include <X11/Xlib.h>
3808 if test $HAVE_XDBE = yes; then
3811 if test $HAVE_XDBE = yes; then
3812 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3815 AC_SUBST(XDBE_CFLAGS)
3818 ### Use libxml (-lxml2) if available
3819 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3821 if test "${with_xml2}" != "no"; then
3822 ### I'm not sure what the version number should be, so I just guessed.
3823 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3824 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3825 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3826 SAVE_CPPFLAGS="$CPPFLAGS"
3827 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3828 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3829 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3831 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3835 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3836 AC_CHECK_HEADER(libxml/HTMLparser.h,
3837 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3838 [#include <libxml/HTMLparser.h>])])
3839 CPPFLAGS="$SAVE_CPPFLAGS"
3840 if test "${HAVE_LIBXML2}" = "yes"; then
3841 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3842 LIBXML2_LIBS="-lxml2"
3845 if test "${HAVE_LIBXML2}" = "yes"; then
3846 if test "${opsys}" != "mingw32"; then
3847 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3852 if test "${HAVE_LIBXML2}" = "yes"; then
3853 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3860 AC_SUBST(LIBXML2_LIBS)
3861 AC_SUBST(LIBXML2_CFLAGS)
3865 if test ! "$with_mailutils"; then
3866 # Check for mail-locking functions in a "mail" library. Probably this should
3867 # have the same check as for liblockfile below.
3868 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3869 if test $have_mail = yes; then
3871 AC_DEFINE([HAVE_LIBMAIL], [1],
3872 [Define to 1 if you have the 'mail' library (-lmail).])
3875 LIBS="$LIBS_MAIL $LIBS"
3876 AC_CHECK_FUNCS([touchlock])
3879 dnl Debian, at least:
3880 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3881 if test $have_lockfile = yes; then
3882 LIBS_MAIL=-llockfile
3883 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3884 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3886 # If we have the shared liblockfile, assume we must use it for mail
3887 # locking (e.g. Debian). If we couldn't link against liblockfile
3888 # (no liblockfile.a installed), ensure that we don't need to.
3889 dnl This works for files generally, not just executables.
3890 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3891 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3892 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3893 if test "$ac_cv_prog_liblockfile" = yes; then
3894 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3895 This probably means that movemail could lose mail.
3896 There may be a 'development' package to install containing liblockfile.])
3899 AC_CHECK_HEADERS([maillock.h])
3901 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3902 ## interlock access to the mail spool. The alternative is a lock file named
3903 ## /usr/spool/mail/$USER.lock.
3906 aix4-2) mail_lock="lockf" ;;
3908 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3910 ## On GNU/Linux systems, both methods are used by various mail programs.
3911 ## I assume most people are using newer mailers that have heard of flock.
3912 ## Change this if you need to.
3913 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3914 ## configure gets the right answers, and that means *NOT* using flock.
3915 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3916 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3917 ## Debian maintainer hasn't provided a clean fix for Emacs.
3918 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3919 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3920 ## correct logic. -- fx
3921 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3922 ## liblockfile is a Free Software replacement for libmail, used on
3923 ## Debian systems and elsewhere. -rfr.
3926 if test $have_mail = yes || test $have_lockfile = yes; then
3927 test $ac_cv_header_maillock_h = yes && mail_lock=no
3931 mail_lock="none-needed" ;;
3935 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3936 [Define if the mailer uses flock to interlock the mail spool.]);;
3938 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3939 [Define if the mailer uses lockf to interlock the mail spool.]);;
3943 *) BLESSMAIL_TARGET="need-blessmail" ;;
3946 AC_SUBST([BLESSMAIL_TARGET])
3947 AC_SUBST([LIBS_MAIL])
3950 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3951 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3952 getrusage get_current_dir_name \
3953 lrand48 random rint trunc \
3954 select getpagesize setlocale newlocale \
3955 getrlimit setrlimit shutdown \
3956 pthread_sigmask strsignal setitimer \
3957 sendto recvfrom getsockname getifaddrs freeifaddrs \
3959 getpwent endpwent getgrent endgrent \
3960 cfmakeraw cfsetspeed __executable_start log2 prctl)
3963 dnl No need to check for posix_memalign if aligned_alloc works.
3964 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3965 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3967 dnl Cannot use AC_CHECK_FUNCS
3968 AC_CACHE_CHECK([for __builtin_unwind_init],
3969 emacs_cv_func___builtin_unwind_init,
3970 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3971 emacs_cv_func___builtin_unwind_init=yes,
3972 emacs_cv_func___builtin_unwind_init=no)])
3973 if test $emacs_cv_func___builtin_unwind_init = yes; then
3974 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3975 [Define to 1 if you have the '__builtin_unwind_init' function.])
3978 AC_CHECK_HEADERS_ONCE(sys/un.h)
3983 AC_CHECK_FUNCS(grantpt)
3985 # PTY-related GNU extensions.
3986 AC_CHECK_FUNCS(getpt posix_openpt)
3988 # Check this now, so that we will NOT find the above functions in ncurses.
3989 # That is because we have not set up to link ncurses in lib-src.
3990 # It's better to believe a function is not available
3991 # than to expect to find it in ncurses.
3992 # Also we need tputs and friends to be able to build at all.
3993 AC_MSG_CHECKING([for library containing tputs])
3994 # Run a test program that contains a call to tputs, a call that is
3995 # never executed. This tests whether a pre-'main' dynamic linker
3996 # works with the library. It's too much trouble to actually call
3997 # tputs in the test program, due to portability hassles. When
3998 # cross-compiling, assume the test program will run if it links.
3999 AC_DEFUN([tputs_link_source], [
4001 [[extern void tputs (const char *, int, int (*)(int));
4002 int main (int argc, char **argv)
4005 tputs (argv[0], 0, 0);
4009 if test "${opsys}" = "mingw32"; then
4012 # Maybe curses should be tried earlier?
4013 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
4014 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
4016 if test -z "$tputs_library"; then
4020 LIBS_TERMCAP=-l$tputs_library
4022 LIBS="$LIBS_TERMCAP $LIBS"
4024 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
4025 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
4027 if test "X$msg" != Xno; then
4032 AC_MSG_RESULT([$msg])
4033 if test "X$msg" = Xno; then
4034 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
4035 The following libraries were tried (in order):
4036 libtinfo, libncurses, libterminfo, libtermcap, libcurses
4037 Please try installing whichever of these libraries is most appropriate
4038 for your system, together with its header files.
4039 For example, a libncurses-dev(el) or similar package.])
4042 ## Use termcap instead of terminfo?
4043 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
4045 ## FIXME? In the cases below where we unconditionally set
4046 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4047 ## if that was found above to have tputs.
4048 ## Should we use the gnu* logic everywhere?
4050 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4051 ## The ncurses library has been moved out of the System framework in
4052 ## Mac OS X 10.2. So if configure detects it, set the command-line
4053 ## option to use it.
4054 darwin) LIBS_TERMCAP="-lncurses" ;;
4056 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4059 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4060 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4061 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4062 [[#if __FreeBSD_version < 400000
4065 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4067 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4069 if test $emacs_cv_freebsd_terminfo = yes; then
4070 LIBS_TERMCAP="-lncurses"
4073 LIBS_TERMCAP="-ltermcap"
4083 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4085 LIBS_TERMCAP="-ltermcap"
4089 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4091 ## hpux: Make sure we get select from libc rather than from libcurses
4092 ## because libcurses on HPUX 10.10 has a broken version of select.
4093 ## We used to use -lc -lcurses, but this may be cleaner.
4094 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4095 # set that way, now it uses the default). Isn't this a contradiction?
4096 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4100 TERMCAP_OBJ=tparam.o
4101 if test $TERMINFO = yes; then
4102 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4103 TERMCAP_OBJ=terminfo.o
4105 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4106 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4108 AC_SUBST(LIBS_TERMCAP)
4109 AC_SUBST(TERMCAP_OBJ)
4111 # GNU/Linux-specific timer functions.
4112 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4114 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4116 [[timerfd_create (CLOCK_REALTIME,
4117 TFD_CLOEXEC | TFD_NONBLOCK);
4118 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4119 [emacs_cv_have_timerfd=yes],
4120 [emacs_cv_have_timerfd=no])])
4121 if test "$emacs_cv_have_timerfd" = yes; then
4122 AC_DEFINE([HAVE_TIMERFD], 1,
4123 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4126 # Alternate stack for signal handlers.
4127 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4128 [emacs_cv_alternate_stack],
4130 [AC_LANG_PROGRAM([[#include <signal.h>
4133 struct sigaction sa;
4134 ss.ss_sp = malloc (SIGSTKSZ);
4135 ss.ss_size = SIGSTKSZ;
4136 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4137 sigaltstack (&ss, 0);
4138 sigaction (SIGSEGV, &sa, 0);]])],
4139 [emacs_cv_alternate_stack=yes],
4140 [emacs_cv_alternate_stack=no])])
4142 # Do we need the Hesiod library to provide the support routines?
4143 dnl FIXME? Should we be skipping this on Darwin too?
4146 if test "$with_hesiod" != no ; then
4147 # Don't set $LIBS here -- see comments above. FIXME which comments?
4149 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4150 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4151 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4152 if test "$resolv" = yes ; then
4158 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4159 hesiod=yes, :, $RESOLVLIB)])
4161 if test x"$hesiod" = xyes; then
4163 LIBRESOLV=$RESOLVLIB
4169 # These tell us which Kerberos-related libraries to use.
4176 if test "${with_kerberos}" != no; then
4178 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4179 if test $have_com_err = yes; then
4180 COM_ERRLIB=-lcom_err
4181 LIBS="$COM_ERRLIB $LIBS"
4183 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4184 if test $have_crypto = yes; then
4186 LIBS="$CRYPTOLIB $LIBS"
4188 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4189 if test $have_k5crypto = yes; then
4190 CRYPTOLIB=-lk5crypto
4191 LIBS="$CRYPTOLIB $LIBS"
4193 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4194 if test $have_krb5=yes; then
4196 LIBS="$KRB5LIB $LIBS"
4198 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4199 if test "${with_kerberos5}" = no; then
4200 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4201 if test $have_des425 = yes; then
4203 LIBS="$DESLIB $LIBS"
4205 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4206 if test $have_des = yes; then
4208 LIBS="$DESLIB $LIBS"
4211 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4212 if test $have_krb4 = yes; then
4214 LIBS="$KRB4LIB $LIBS"
4216 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4217 if test $have_krb = yes; then
4219 LIBS="$KRB4LIB $LIBS"
4224 if test "${with_kerberos5}" != no; then
4225 AC_CHECK_HEADERS(krb5.h,
4226 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4227 [#include <krb5.h>])])
4229 AC_CHECK_HEADERS(krb.h,,
4230 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4231 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4233 AC_CHECK_HEADERS(com_err.h)
4237 AC_SUBST(COM_ERRLIB)
4243 AC_CHECK_HEADERS(valgrind/valgrind.h)
4245 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4247 AC_CHECK_FUNCS_ONCE([sbrk])
4250 AC_CHECK_FUNC(socket, , ok_so_far=no)
4251 if test $ok_so_far = yes; then
4252 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4254 if test $ok_so_far = yes; then
4255 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4257 if test $ok_so_far = yes; then
4258 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4259 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4260 [Define to 1 if you have inet sockets.])
4265 AC_CHECK_FUNCS(snprintf)
4267 dnl Check for glib. This differs from other library checks in that
4268 dnl Emacs need not link to glib unless some other library is already
4269 dnl linking to glib. Although glib provides no facilities that Emacs
4270 dnl needs for its own purposes, when glib is present Emacs needs to
4271 dnl use primitives like g_main_context_query to avoid clashing with
4272 dnl glib at a low level.
4274 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4278 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4279 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4280 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4281 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4282 AC_MSG_CHECKING([whether GLib is linked in])
4283 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4286 [[g_print ("Hello world");]])],
4289 AC_MSG_RESULT([$links_glib])
4290 if test "${links_glib}" = "yes"; then
4291 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4292 if test "$HAVE_NS" = no;then
4300 dnl Adapted from Haible's version.
4301 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4302 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4303 [[char* cs = nl_langinfo(CODESET);]])],
4304 emacs_cv_langinfo_codeset=yes,
4305 emacs_cv_langinfo_codeset=no)
4307 if test $emacs_cv_langinfo_codeset = yes; then
4308 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4309 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4314 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4315 dnl how the tty code is related to POSIX and/or other versions of termios.
4316 dnl The following looks like a useful start.
4318 dnl AC_SYS_POSIX_TERMIOS
4319 dnl if test $ac_cv_sys_posix_termios = yes; then
4320 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4321 dnl and macros for terminal control.])
4322 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4325 dnl Turned on June 1996 supposing nobody will mind it.
4326 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4327 if test "${opsys}" != "mingw32"; then
4328 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4329 in the full name stands for the login id.])
4332 dnl Everybody supports this, except MS.
4333 dnl Seems like the kind of thing we should be testing for, though.
4334 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4335 if test "${opsys}" != "mingw32"; then
4336 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4339 dnl Everybody supports this, except MS-DOS.
4340 dnl Seems like the kind of thing we should be testing for, though.
4341 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4342 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4343 4.2-compatible sockets.])
4345 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4347 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4348 a null file, or a data sink.])
4349 if test "${opsys}" = "mingw32"; then
4350 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4352 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4355 if test "${opsys}" = "mingw32"; then
4360 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4361 dnl This is for MinGW, and is used in test/Makefile.in.
4362 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4363 dnl decides that a command-line argument to be passed to a MinGW program
4364 dnl is a PATH-style list of directories. But that heuristics plays it
4365 dnl safe, and only does the replacement when it is _absolutely_ sure it
4366 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4367 dnl which breaks in-tree builds. So we do this manually instead.
4368 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4369 dnl be computed as ':' in MSYS Bash.
4372 dnl Everybody supports this, except MS-DOS.
4373 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4375 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4378 AC_DEFINE(DIRECTORY_SEP, ['/'],
4379 [Character that separates directories in a file name.])
4381 if test "${opsys}" = "mingw32"; then
4382 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4383 [Returns true if character is a device separator.])
4385 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4386 [Returns true if character is a directory separator.])
4388 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4389 [Returns true if character is any form of separator.])
4391 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4392 [Returns true if character is a device separator.])
4394 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4395 [Returns true if character is a directory separator.])
4397 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4398 [Returns true if character is any form of separator.])
4401 if test "$USE_X_TOOLKIT" != "none"; then
4405 dnl Assar Westerlund <assar@sics.se> says this is necessary
4406 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4410 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4412 dnl See libXmu.a check above.
4413 if test x$HAVE_X11XTR6 = xyes; then
4414 LIBS="-lXt -lSM -lICE $LIBXMU"
4416 OTHERLIBS="-lXt -$LIBXMU"
4419 [#include <X11/Intrinsic.h>
4420 #include <X11/Xmu/Editres.h>],
4421 [_XEditResCheckMessages (0, 0, 0, 0);],
4422 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4423 [Define to 1 if we should use XEditRes.])])
4430 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4431 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4432 dnl need the constant to dimension an array. So wire in the appropriate
4434 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4438 emacs_broken_SIGIO=no
4441 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4442 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4443 hpux* | nacl | openbsd | sol2* | unixware )
4444 emacs_broken_SIGIO=yes
4448 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4449 dnl the way this system works, libc functions that return malloced
4450 dnl memory use the libc malloc implementation. Calling xfree or
4451 dnl xrealloc on the results of such functions results in a crash.
4453 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4454 dnl but that does not currently work on this system.
4456 dnl It is possible to completely override the malloc implementation on
4457 dnl AIX, but that involves putting the malloc functions in a shared
4458 dnl library and setting the MALLOCTYPE environment variable to point to
4459 dnl that shared library.
4461 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4462 dnl to avoid a crash just use the Emacs implementation for that function.
4464 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4465 dnl of this file, so that we do not check for get_current_dir_name
4466 dnl on AIX. But that might be fragile if something else ends
4467 dnl up testing for get_current_dir_name as a dependency.
4468 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4469 get_current_dir_name should not be used.])
4473 dnl Circumvent a bug in FreeBSD. In the following sequence of
4474 dnl writes/reads on a PTY, read(2) returns bogus data:
4476 dnl write(2) 1022 bytes
4477 dnl write(2) 954 bytes, get EAGAIN
4478 dnl read(2) 1024 bytes in process_read_output
4479 dnl read(2) 11 bytes in process_read_output
4481 dnl That is, read(2) returns more bytes than have ever been written
4482 dnl successfully. The 1033 bytes read are the 1022 bytes written
4483 dnl successfully after processing (for example with CRs added if the
4484 dnl terminal is set up that way which it is here). The same bytes will
4485 dnl be seen again in a later read(2), without the CRs.
4486 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4487 work around an issue when reading from a PTY.])
4493 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4494 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4499 darwin | dragonfly | freebsd | netbsd | openbsd )
4500 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4501 close a pty to make it a controlling terminal (it is already a
4502 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4506 dnl FIXME Surely we can test for this rather than hard-code it.
4508 netbsd | openbsd) sound_device="/dev/audio" ;;
4509 *) sound_device="/dev/dsp" ;;
4513 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4514 [Name of the default sound device.])
4517 dnl Emacs can read input using SIGIO and buffering characters itself,
4518 dnl or using CBREAK mode and making C-g cause SIGINT.
4519 dnl The choice is controlled by the variable interrupt_input.
4521 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4523 dnl Emacs uses the presence of the USABLE_SIGIO macro
4524 dnl to indicate whether or not signal-driven I/O is possible. It uses
4525 dnl INTERRUPT_INPUT to decide whether to use it by default.
4527 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4528 dnl CBREAK mode has two disadvantages
4529 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4530 dnl I hear that in system V this problem does not exist.
4531 dnl 2) Control-G causes output to be discarded.
4532 dnl I do not know whether this can be fixed in system V.
4534 dnl Another method of doing input is planned but not implemented.
4535 dnl It would have Emacs fork off a separate process
4536 dnl to read the input and send it to the true Emacs process
4539 darwin | gnu-linux | gnu-kfreebsd )
4540 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4545 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4546 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4547 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4548 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4549 dnl taking float or double parameters.
4551 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4552 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4553 file defines 'NeedWidePrototypes' as 'NO'.])
4558 dnl Used in process.c, this must be a loop, even if it only runs once.
4559 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4560 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4561 dnl trying suffixes 0-16.
4562 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4563 first PTY, if PTYs are supported.])
4564 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4565 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4566 end of a PTY, if non-standard.])
4567 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4568 end of a PTY, if non-standard.])
4572 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4573 dnl You allocate a pty by opening /dev/ptc to get the master side.
4574 dnl To get the name of the slave side, you just ttyname() the master side.
4575 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4576 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4580 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4581 dnl multi-line AC_DEFINEs are hard. :(
4582 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)])
4583 AC_DEFINE(PTY_NAME_SPRINTF, [])
4584 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4588 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4591 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4593 if test "x$ac_cv_func_grantpt" = xyes; then
4594 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4595 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4596 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4597 dnl to prevent sigchld_handler from intercepting the child's death.
4598 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); }])
4599 dnl if HAVE_POSIX_OPENPT
4600 if test "x$ac_cv_func_posix_openpt" = xyes; then
4601 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4602 AC_DEFINE(PTY_NAME_SPRINTF, [])
4604 elif test "x$ac_cv_func_getpt" = xyes; then
4605 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4606 AC_DEFINE(PTY_NAME_SPRINTF, [])
4608 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4611 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4616 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4617 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4618 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4622 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4623 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4624 dnl from intercepting that death. If any child but grantpt's should die
4625 dnl within, it should be caught after sigrelse(2).
4626 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4627 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); }])
4631 dnl Comments are as per sol2*.
4632 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4633 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); }])
4640 dnl This change means that we don't loop through allocate_pty too
4641 dnl many times in the (rare) event of a failure.
4642 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4643 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4644 dnl Push various streams modules onto a PTY channel. Used in process.c.
4645 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.])
4650 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4651 "typing" a signal character on the pty.])
4654 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4655 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4656 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4659 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4660 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4661 gnu-linux | gnu-kfreebsd )
4663 AC_MSG_CHECKING([for signals via characters])
4664 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4665 #include <linux/version.h>
4666 #if LINUX_VERSION_CODE < 0x20400
4667 # error "Linux version too old"
4669 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4671 AC_MSG_RESULT([$emacs_signals_via_chars])
4672 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4677 AH_TEMPLATE(TAB3, [Undocumented.])
4680 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4682 gnu | dragonfly | freebsd | netbsd | openbsd )
4683 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4684 AC_DEFINE(TAB3, OXTABS)
4687 gnu-linux | gnu-kfreebsd )
4688 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4692 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4693 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4694 [Mark a secondary stack, like the register stack on the ia64.]), [])
4698 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4699 run_time_remap; for HPUX.])
4704 dnl This won't be used automatically yet. We also need to know, at least,
4705 dnl that the stack is continuous.
4706 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4707 registers relevant for conservative garbage collection in the jmp_buf.])
4711 dnl Not all the architectures are tested, but there are Debian packages
4712 dnl for SCM and/or Guile on them, so the technique must work. See also
4713 dnl comments in alloc.c concerning setjmp and gcc.
4714 dnl Fixme: it's probably safe to just use the GCC conditional below.
4715 gnu-linux | gnu-kfreebsd )
4716 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4717 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4718 || defined __alpha__ || defined __mips__ || defined __s390__ \
4719 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4720 || defined __ia64__ || defined __sh__
4723 # error "setjmp not known to work on this arch"
4725 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4730 if test x$GCC = xyes; then
4731 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4732 AC_DEFINE(GC_SETJMP_WORKS, 1)
4735 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4736 AC_DEFINE(GC_SETJMP_WORKS, 1)
4741 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4742 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4745 [[#include <setjmp.h>
4747 # define _longjmp longjmp
4752 _longjmp (j, 1);]])],
4753 [emacs_cv_func__setjmp=yes],
4754 [emacs_cv_func__setjmp=no])])
4755 if test $emacs_cv_func__setjmp = yes; then
4756 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4759 # We need to preserve signal mask to handle C stack overflows.
4760 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4763 [[#include <setjmp.h>
4766 if (! sigsetjmp (j, 1))
4767 siglongjmp (j, 1);]])],
4768 [emacs_cv_func_sigsetjmp=yes],
4769 [emacs_cv_func_sigsetjmp=no])])
4770 if test $emacs_cv_func_sigsetjmp = yes; then
4771 AC_DEFINE([HAVE_SIGSETJMP], 1,
4772 [Define to 1 if sigsetjmp and siglongjmp work.])
4775 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4776 yes,yes,* | *,*,mingw32)
4777 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4778 [Define to 1 if C stack overflow can be handled in some cases.]);;
4783 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4784 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4785 dnl and this is all we need.
4786 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4793 dnl Used in xfaces.c.
4794 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4795 some systems, where it requires time.h.])
4800 dnl Define symbols to identify the version of Unix this is.
4801 dnl Define all the symbols that apply correctly.
4802 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4803 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4804 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4805 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4810 dnl This symbol should be defined on AIX Version 3 ???????
4811 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4813 # error "_AIX not defined"
4815 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4819 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4823 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4824 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4825 dnl distinguish macOS from pure Darwin.
4826 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4829 gnu-linux | gnu-kfreebsd )
4831 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4836 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4840 AC_DEFINE(DOS_NT, [])
4841 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4842 if test "x$ac_enable_checking" != "x" ; then
4843 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4849 AC_DEFINE(USG5_4, [])
4850 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4855 AC_DEFINE(USG5_4, [])
4859 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4862 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4863 emacs_cv_usable_FIONREAD=no
4867 emacs_cv_usable_FIONREAD=yes
4872 [AC_LANG_PROGRAM([[#include <sys/types.h>
4873 #include <sys/ioctl.h>
4875 # include <sys/filio.h>
4878 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4879 [emacs_cv_usable_FIONREAD=yes],
4880 [emacs_cv_usable_FIONREAD=no])
4883 if test $emacs_cv_usable_FIONREAD = yes; then
4884 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4886 if test $emacs_broken_SIGIO = no; then
4887 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4889 [AC_LANG_PROGRAM([[#include <fcntl.h>
4892 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4893 [emacs_cv_usable_SIGIO=yes],
4894 [emacs_cv_usable_SIGIO=no])],
4895 [emacs_cv_usable_SIGIO=yes],
4896 [emacs_cv_usable_SIGIO=no])
4897 if test $emacs_cv_usable_SIGIO = yes; then
4898 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4905 dnl It works to open the pty's tty in the parent (Emacs), then
4906 dnl close and reopen it in the child.
4907 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4908 works to open a pty's tty in the parent process, then close and
4909 reopen it in the child.])
4913 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4918 # Set up the CFLAGS for real compilation, so we can substitute it.
4919 CFLAGS="$REAL_CFLAGS"
4920 CPPFLAGS="$REAL_CPPFLAGS"
4923 ## Hack to detect a buggy GCC version.
4924 if test "$GCC" = yes && \
4925 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4927 *-fno-optimize-sibling-calls*) ;;
4929 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4933 version=$PACKAGE_VERSION
4935 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
4936 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4937 [Short copyright string for this version of Emacs.])
4940 ### Specify what sort of things we'll be editing into Makefile and config.h.
4941 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4943 AC_SUBST(configuration)
4948 AC_SUBST(exec_prefix)
4951 AC_SUBST(sharedstatedir)
4952 AC_SUBST(libexecdir)
4956 AC_SUBST(standardlisppath)
4957 AC_SUBST(locallisppath)
4959 AC_SUBST(x_default_search_path)
4961 AC_SUBST(archlibdir)
4967 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4968 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4969 ## end of LIBX_BASE, but nothing ever set it.
4970 AC_SUBST(LD_SWITCH_X_SITE)
4971 AC_SUBST(C_SWITCH_X_SITE)
4972 AC_SUBST(GNUSTEP_CFLAGS)
4974 ## Used in lwlib/Makefile.in.
4975 AC_SUBST(X_TOOLKIT_TYPE)
4977 AC_SUBST(ns_appbindir)
4978 AC_SUBST(ns_appresdir)
4980 AC_SUBST(GNU_OBJC_CFLAGS)
4981 AC_SUBST(OTHER_FILES)
4983 if test -n "${term_header}"; then
4984 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4985 [Define to the header for the built-in window system.])
4988 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4989 [Define to the canonical Emacs configuration name.])
4990 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4991 [Define to the options passed to configure.])
4996 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4997 AC_DEFINE(HAVE_X_WINDOWS, 1,
4998 [Define to 1 if you want to use the X window system.])
5000 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
5002 if test "$HAVE_CAIRO" = "yes"; then
5003 FONT_OBJ="ftfont.o ftcrfont.o"
5004 elif test "$HAVE_XFT" = "yes"; then
5005 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
5006 elif test "$HAVE_FREETYPE" = "yes"; then
5007 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
5017 if test "${USE_X_TOOLKIT}" != "none" ; then
5019 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
5020 if test "${USE_X_TOOLKIT}" = "LUCID"; then
5021 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
5022 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
5023 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
5027 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
5028 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
5032 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
5033 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
5034 MOTIF_LIBW="MOTIF_LIBW -lXimp"
5038 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
5039 MOTIF_LIBW="$MOTIF_LIBW -li18n"
5042 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
5045 AC_SUBST(WIDGET_OBJ)
5048 case "$USE_X_TOOLKIT" in
5049 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5050 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5051 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5053 if test "$HAVE_XWIDGETS" = "yes"; then
5054 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5056 AC_SUBST(TOOLKIT_LIBW)
5058 if test "${opsys}" != "mingw32"; then
5059 if test "$USE_X_TOOLKIT" = "none"; then
5060 LIBXT_OTHER="\$(LIBXSM)"
5062 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5065 AC_SUBST(LIBXT_OTHER)
5067 if test "${HAVE_X11}" = "yes" ; then
5068 AC_DEFINE(HAVE_X11, 1,
5069 [Define to 1 if you want to use version 11 of X windows.])
5070 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5074 AC_SUBST(LIBX_OTHER)
5077 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5079 elif test "$USE_X_TOOLKIT" = none; then
5081 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5082 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5084 LIBXMENU='$(lwlibdir)/liblw.a'
5085 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5089 AC_CACHE_CHECK([for struct alignment],
5090 [emacs_cv_struct_alignment],
5092 [AC_LANG_PROGRAM([[#include <stddef.h>
5093 struct __attribute__ ((aligned (8))) s { char c; };
5094 struct t { char c; struct s s; };
5095 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5097 [emacs_cv_struct_alignment=yes],
5098 [emacs_cv_struct_alignment=no])])
5099 if test "$emacs_cv_struct_alignment" = yes; then
5100 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5101 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5102 structure to an N-byte boundary.])
5105 if test "${GNU_MALLOC}" = "yes" ; then
5106 AC_DEFINE(GNU_MALLOC, 1,
5107 [Define to 1 if you want to use the GNU memory allocator.])
5111 if test "${REL_ALLOC}" = "yes" ; then
5112 AC_DEFINE(REL_ALLOC, 1,
5113 [Define REL_ALLOC if you want to use the relocating allocator for
5116 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5118 AC_SUBST(RALLOC_OBJ)
5120 if test "$opsys" = "cygwin"; then
5121 CYGWIN_OBJ="cygw32.o"
5122 ## Cygwin differs because of its unexec().
5124 POST_ALLOC_OBJ=lastfile.o
5125 elif test "$opsys" = "mingw32"; then
5128 POST_ALLOC_OBJ=lastfile.o
5131 PRE_ALLOC_OBJ=lastfile.o
5134 AC_SUBST(CYGWIN_OBJ)
5135 AC_SUBST(PRE_ALLOC_OBJ)
5136 AC_SUBST(POST_ALLOC_OBJ)
5138 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5139 dnl verbatim defined above. The tricky name is apropos, as this hack
5140 dnl makes Fortify go sour!
5141 AH_VERBATIM([FORTIFY_SOUR],
5142 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5143 The workaround disables some useful run-time checking, so it
5144 should be conditional to the platforms with the performance bug.
5145 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5146 #if defined __APPLE__ && defined __GNUC__
5147 # ifndef _DONT_USE_CTYPE_INLINE_
5148 # define _DONT_USE_CTYPE_INLINE_
5150 # ifndef _FORTIFY_SOURCE
5151 # define _FORTIFY_SOURCE 0
5156 # If user asks to omit features, disable optional features that gnulib
5157 # might otherwise enable.
5158 if test "$with_features" = no && test "$enable_acl" != yes; then
5162 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5163 # it temporarily reverts them to their pre-pkg-config values,
5164 # because gnulib needs to work with both src (which uses the
5165 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5166 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5167 # and it therefore needs to run in an environment where LIBS does not
5168 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5169 # for some package unrelated to lib-src.
5172 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5173 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5174 gl_ASSERT_NO_GNULIB_POSIXCHECK
5175 gl_ASSERT_NO_GNULIB_TESTS
5180 if test "${opsys}" = "mingw32"; then
5181 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5182 # Remove unneeded switches from the value of CC that goes to Makefiles
5183 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5187 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5189 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5192 ## The -headerpad option tells ld (see man page) to leave room at the
5193 ## end of the header for adding load commands. Needed for dumping.
5194 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5195 ## architecture (where they are 78 bytes each). The actual number of
5196 ## load commands added is not consistent but normally ranges from
5197 ## about 14 to about 34. Setting it high gets us plenty of slop and
5198 ## only costs about 1.5K of wasted binary space.
5199 headerpad_extra=1000
5200 if test "$HAVE_NS" = "yes"; then
5201 libs_nsgui="-framework AppKit"
5202 if test "$NS_IMPL_COCOA" = "yes"; then
5203 libs_nsgui="$libs_nsgui -framework IOKit"
5208 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5210 ## This is here because src/Makefile.in did some extra fiddling around
5211 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5212 ## LD_SWITCH_SYSTEM_TEMACS instead,
5213 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5214 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5217 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5218 ## find X at run-time.
5219 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5220 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5221 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5222 ## had different values in configure (in ac_link) and src/Makefile.in.
5223 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5224 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5227 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5228 case "$canonical" in
5229 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5230 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5234 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5237 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5238 # Ubuntu, and other systems with "hardened" GCC configurations for
5239 # some reason (Bug#18784). We don't know why this works, but not
5240 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5241 # when trying the option, otherwise clang keeps warning that it does
5242 # not understand it, and pre-4.6 GCC has a similar problem
5243 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5244 # spelling used by GCC 6.1.0 and later (Bug#24682).
5246 [for $CC option to disable position independent executables],
5247 [emacs_cv_prog_cc_no_pie],
5248 [emacs_save_c_werror_flag=$ac_c_werror_flag
5249 emacs_save_LDFLAGS=$LDFLAGS
5250 ac_c_werror_flag=yes
5251 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5252 test $emacs_cv_prog_cc_no_pie = no && break
5253 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5254 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5256 ac_c_werror_flag=$emacs_save_c_werror_flag
5257 LDFLAGS=$emacs_save_LDFLAGS])
5258 if test "$emacs_cv_prog_cc_no_pie" != no; then
5259 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5262 if test x$ac_enable_profiling != x ; then
5264 *freebsd | gnu-linux) ;;
5265 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5269 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5271 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5273 ## Common for all window systems
5274 if test "$window_system" != "none"; then
5275 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5276 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5277 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5280 AC_SUBST(WINDOW_SYSTEM_OBJ)
5282 AH_TOP([/* GNU Emacs site configuration template file.
5284 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5285 Free Software Foundation, Inc.
5287 This file is part of GNU Emacs.
5289 GNU Emacs is free software: you can redistribute it and/or modify
5290 it under the terms of the GNU General Public License as published by
5291 the Free Software Foundation, either version 3 of the License, or (at
5292 your option) any later version.
5294 GNU Emacs is distributed in the hope that it will be useful,
5295 but WITHOUT ANY WARRANTY; without even the implied warranty of
5296 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5297 GNU General Public License for more details.
5299 You should have received a copy of the GNU General Public License
5300 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5303 /* No code in Emacs #includes config.h twice, but some bits of code
5304 intended to work with other packages as well (like gmalloc.c)
5305 think they can include it as many times as they like. */
5306 #ifndef EMACS_CONFIG_H
5307 #define EMACS_CONFIG_H
5310 AH_BOTTOM([#include <conf_post.h>
5312 #endif /* EMACS_CONFIG_H */
5321 #### Report on what we decided to do.
5322 #### Report GTK as a toolkit, even if it doesn't use Xt.
5323 #### It makes printing result more understandable as using GTK sets
5324 #### toolkit_scroll_bars to yes by default.
5325 if test "${HAVE_GTK}" = "yes"; then
5326 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5329 if test $USE_ACL -ne 0; then
5330 ACL_SUMMARY="yes $LIB_ACL"
5335 emacs_standard_dirs='Standard dirs'
5337 Configured for '${canonical}'.
5339 Where should the build process find the source code? ${srcdir}
5340 What compiler should emacs be built with? ${CC} ${CFLAGS}
5341 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5342 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5343 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5344 What window system should Emacs use? ${window_system}
5345 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5346 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5347 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5350 emacs_config_features=
5351 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5352 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5353 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5354 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5357 CANNOT_DUMP) eval val=\${$opt} ;;
5358 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5359 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5360 *) eval val=\${HAVE_$opt} ;;
5363 xno|xnone|x) continue ;;
5368 GTK*|LUCID|MOTIF) opt=$val ;;
5373 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5376 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5377 [Summary of some of the main features enabled by configure.])
5379 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5380 Does Emacs use -lXpm? ${HAVE_XPM}
5381 Does Emacs use -ljpeg? ${HAVE_JPEG}
5382 Does Emacs use -ltiff? ${HAVE_TIFF}
5383 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5384 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5385 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5386 Does Emacs use cairo? ${HAVE_CAIRO}
5387 Does Emacs use imagemagick (version 6)? ${HAVE_IMAGEMAGICK}
5388 Does Emacs support sound? ${HAVE_SOUND}
5389 Does Emacs use -lgpm? ${HAVE_GPM}
5390 Does Emacs use -ldbus? ${HAVE_DBUS}
5391 Does Emacs use -lgconf? ${HAVE_GCONF}
5392 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5393 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5394 Does Emacs use access control lists? ${ACL_SUMMARY}
5395 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5396 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5397 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5398 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5399 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5400 Does Emacs use -lotf? ${HAVE_LIBOTF}
5401 Does Emacs use -lxft? ${HAVE_XFT}
5402 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5403 Does Emacs directly use zlib? ${HAVE_ZLIB}
5404 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5405 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5406 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5407 Does Emacs have threading support in lisp? ${threads_enabled}
5410 if test -n "${EMACSDATA}"; then
5411 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5413 if test -n "${EMACSDOC}"; then
5414 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5419 if test "$HAVE_NS" = "yes"; then
5421 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5422 The installed application will go to nextstep/Emacs.app and can be
5423 run or moved from there."])
5424 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5425 echo "The application will be fully self-contained."
5427 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5428 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5429 to run if these resources are not installed."])
5434 case $opsys,$emacs_uname_r in
5436 AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5441 # Remove any trailing slashes in these variables.
5443 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5445 case $exec_prefix in
5446 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5449 if test "$HAVE_NS" = "yes"; then
5450 if test "$NS_IMPL_GNUSTEP" = yes; then
5451 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5452 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5453 ns_check_file=Resources/Info-gnustep.plist
5455 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5456 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5457 ns_check_file=Contents/Info.plist
5459 AC_SUBST(ns_check_file)
5462 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5464 dnl config.status treats $srcdir specially, so I think this is ok...
5465 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5467 m4_define([subdir_makefiles],
5468 [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])
5469 SUBDIR_MAKEFILES="subdir_makefiles"
5470 AC_CONFIG_FILES(subdir_makefiles)
5472 dnl test/ is not present in release tarfiles.
5473 opt_makefile=test/Makefile
5475 if test -f "$srcdir/$opt_makefile.in"; then
5476 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5477 dnl Again, it's best not to use a variable. Though you can add
5478 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5479 AC_CONFIG_FILES([test/Makefile])
5483 dnl The admin/ directory used to be excluded from tarfiles.
5484 if test -d $srcdir/admin; then
5485 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5486 AC_CONFIG_FILES([admin/charsets/Makefile])
5487 AC_CONFIG_FILES([admin/unidata/Makefile])
5488 AC_CONFIG_FILES([admin/grammars/Makefile])
5492 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5494 AC_SUBST(SUBDIR_MAKEFILES_IN)
5496 dnl You might wonder (I did) why epaths.h is generated by running make,
5497 dnl rather than just letting configure generate it from epaths.in.
5498 dnl One reason is that the various paths are not fully expanded (see above);
5499 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5500 dnl Secondly, the GNU Coding standards require that one should be able
5501 dnl to run 'make prefix=/some/where/else' and override the values set
5502 dnl by configure. This also explains the 'move-if-change' test and
5503 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5504 AC_CONFIG_COMMANDS([src/epaths.h], [
5505 if test "${opsys}" = "mingw32"; then
5506 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5508 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5509 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5510 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5512 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5513 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5515 AC_CONFIG_COMMANDS([src/.gdbinit], [
5516 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5517 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5521 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5522 dnl See comments for etc-refcards-emacsver.tex.
5523 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5524 dnl it is not quite the same. But we are generating in $srcdir.
5525 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5526 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5527 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5530 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5531 dnl then a directory etc/refcards is created in the build directory,
5532 dnl which is probably harmless, but confusing (in out-of-tree builds).
5533 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5534 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5535 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5536 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5537 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5540 if test $AUTO_DEPEND = yes; then
5541 for dir in $AUTODEPEND_PARENTS; do
5542 AS_MKDIR_P([$dir/deps])
5548 if test ! "$with_mailutils"; then
5549 if test "$with_pop" = yes; then
5550 AC_MSG_WARN([This configuration installs a 'movemail' program
5551 that retrieves POP3 email via only insecure channels.
5552 To omit insecure POP3, you can use '$0 --without-pop'.])
5557 # Don't suggest GNU Mailutils, as it hasn't been ported.
5560 emacs_fix_movemail="use '$0 --with-mailutils'"
5561 case `(movemail --version) 2>/dev/null` in
5563 *) emacs_fix_movemail="install GNU Mailutils
5564 <http://mailutils.org> and $emacs_fix_movemail";;
5566 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5570 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])