1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2017 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 26.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 AC_CONFIG_MACRO_DIR(m4)
73 AC_CHECK_PROGS(XCRUN, [xcrun])
74 if test -n "$XCRUN"; then
75 if test -z "$MAKE"; then
76 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
77 dnl the usual MAKE variable that 'make' itself uses.
78 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
79 if test -z "$MAKE_PROG"; then
82 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
87 dnl Check for GNU Make and possibly set MAKE.
88 [emacs_check_gnu_make ()
90 emacs_makeout=`($1 --version) 2>/dev/null` &&
91 case $emacs_makeout in
92 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
93 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
94 ac_path_MAKE_found=:;;
97 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
98 [ac_path_MAKE_found=false
99 if test -n "$MAKE"; then
100 emacs_check_gnu_make "$MAKE"
101 ac_cv_path_MAKE=$MAKE
103 emacs_tried_make=false
104 emacs_tried_gmake=false
105 emacs_tried_gnumake=false
106 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
107 [[emacs_check_gnu_make "$ac_path_MAKE"
108 if $ac_path_MAKE_found; then
109 # Use the fully-qualified program name only if the basename
110 # would not resolve to it.
111 if eval \$emacs_tried_$ac_prog; then
112 ac_cv_path_MAKE=$ac_path_MAKE
114 ac_cv_path_MAKE=$ac_prog
117 eval emacs_tried_$ac_prog=:]])
119 $ac_path_MAKE_found || {
120 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
121 If you have it installed under another name, configure with 'MAKE=...'.
122 For example, run '$0 MAKE=gnu-make'.]])
124 MAKE=$ac_cv_path_MAKE
127 dnl Canonicalize the configuration name.
133 if test -z "$host_alias"; then
135 # No --host argument was given to 'configure'; therefore $host
136 # was set to a default value based on the build platform. But
137 # this default value may be wrong if we are building from a
138 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
139 # Therefore, we'll try to get the right host platform from the
142 AC_MSG_CHECKING([the compiler's target])
143 if test -z "$CC"; then
148 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
152 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
153 Please explicitly provide --host.])
155 *) AC_MSG_WARN([Compiler reported non-standard target.
156 Defaulting to $host.])
159 AC_MSG_RESULT([$host])
162 . $srcdir/nt/mingw-cfg.site
166 # srcdir is an absolute path. In this case, force the format
167 # "/c/foo/bar", to simplify later conversions to native Windows
168 # format ("c:/foo/bar").
169 srcdir=`cd "${srcdir}" && pwd -W`
170 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
171 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
177 configuration=${host_alias-${build_alias-$host}}
179 dnl Support for --program-prefix, --program-suffix and
180 dnl --program-transform-name options
183 dnl It is important that variables on the RHS not be expanded here,
184 dnl hence the single quotes. This is per the GNU coding standards, see
185 dnl (autoconf) Installation Directory Variables
186 dnl See also epaths.h below.
187 lispdir='${datadir}/emacs/${version}/lisp'
188 standardlisppath='${lispdir}'
189 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
190 '${datadir}/emacs/site-lisp'
191 lisppath='${locallisppath}:${standardlisppath}'
192 etcdir='${datadir}/emacs/${version}/etc'
193 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
194 etcdocdir='${datadir}/emacs/${version}/etc'
195 gamedir='${localstatedir}/games/emacs'
197 dnl Special option to disable the most of other options.
199 [AS_HELP_STRING([--without-all],
200 [omit almost all features and build
201 small executable with minimal dependencies])],
202 [with_features=$withval],
205 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
206 dnl Create a new --with option that defaults to being disabled.
207 dnl NAME is the base name of the option. The shell variable with_NAME
208 dnl will be set to either the user's value (if the option is
209 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
210 dnl option is not specified). Note that the shell variable name is
211 dnl constructed as autoconf does, by replacing non-alphanumeric
212 dnl characters with "_".
213 dnl HELP-STRING is the help text for the option.
214 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
215 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
216 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
219 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
220 dnl Create a new --with option that defaults to $with_features.
221 dnl NAME is the base name of the option. The shell variable with_NAME
222 dnl will be set either to 'no' (for a plain --without-NAME) or to
223 dnl 'yes' (if the option is not specified). Note that the shell
224 dnl variable name is constructed as autoconf does, by replacing
225 dnl non-alphanumeric characters with "_".
226 dnl HELP-STRING is the help text for the option.
227 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
228 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
229 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
232 # FIXME: The default options '--without-mailutils --with-pop' result
233 # in a movemail implementation that supports only unencrypted POP3
234 # connections. Encrypted connections should be the default.
236 OPTION_DEFAULT_OFF([mailutils],
237 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
238 options are irrelevant])
239 if test "$with_mailutils" = no; then
242 AC_SUBST([with_mailutils])
244 OPTION_DEFAULT_ON([pop],
245 [don't support POP mail retrieval with movemail (--without-pop or
246 --with-mailutils is recommended, as movemail POP is insecure)])
247 if test "$with_pop" = yes; then
248 AC_DEFINE(MAIL_USE_POP)
250 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
252 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
253 if test "$with_kerberos" != no; then
256 AH_TEMPLATE(KERBEROS,
257 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
259 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
260 if test "${with_kerberos5}" != no; then
261 if test "${with_kerberos}" = no; then
265 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
268 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
269 dnl FIXME hesiod support may not be present, so it seems like an error
270 dnl to define, or at least use, this unconditionally.
271 if test "$with_hesiod" != no; then
272 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
275 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
276 if test "$with_mail_unlink" != no; then
277 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
280 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
281 [string giving default POP mail host])],
282 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
284 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
285 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
286 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
287 [ case "${withval}" in
288 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
289 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
290 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
295 [with_sound=$with_features])
297 dnl FIXME currently it is not the last.
298 dnl This should be the last --with option, because --with-x is
299 dnl added later on when we find the file name of X, and it's best to
300 dnl keep them together visually.
301 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
302 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
303 [ case "${withval}" in
304 y | ye | yes ) val=gtk ;;
306 l | lu | luc | luci | lucid ) val=lucid ;;
307 a | at | ath | athe | athen | athena ) val=athena ;;
308 m | mo | mot | moti | motif ) val=motif ;;
309 g | gt | gtk ) val=gtk ;;
313 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
314 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
315 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
316 'athena' and 'lucid' are synonyms.])
322 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
323 if test "$with_wide_int" = yes; then
324 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
327 dnl _ON results in a '--without' option in the --help output, so
328 dnl the help text should refer to "don't compile", etc.
329 with_xpm_set=${with_xpm+set}
330 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
331 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
332 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
333 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
334 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
335 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
336 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
337 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
338 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
339 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
341 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
342 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
343 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
345 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
346 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
347 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
348 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
349 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
350 On by default on macOS.])],[],[with_ns=maybe])
351 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
353 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
354 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
355 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
356 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
357 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
358 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
359 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
360 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
361 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
363 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
364 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
365 [ case "${withval}" in
366 y | ye | yes ) val=yes ;;
368 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
369 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
370 g | gf | gfi | gfil | gfile ) val=gfile ;;
371 w | w3 | w32 ) val=w32 ;;
372 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
373 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
374 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
375 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
378 with_file_notification=$val
380 [with_file_notification=$with_features])
382 OPTION_DEFAULT_OFF([xwidgets],
383 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
385 ## For the times when you want to build Emacs but don't have
386 ## a suitable makeinfo, and can live without the manuals.
387 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
388 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
390 ## Makefile.in needs the cache file name.
393 ## This is an option because I do not know if all info/man support
394 ## compressed files, nor how to test if they do so.
395 OPTION_DEFAULT_ON([compress-install],
396 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
397 make GZIP_PROG= install])
399 AC_ARG_WITH(gameuser,dnl
400 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
401 [user for shared game score files.
402 An argument prefixed by ':' specifies a group instead.])])
405 case ${with_gameuser} in
407 yes) gamegroup=games ;;
408 :*) gamegroup=${with_gameuser#:} ;;
409 *) gameuser=${with_gameuser} ;;
412 AC_ARG_WITH([gnustep-conf],dnl
413 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
414 [name of GNUstep configuration file to use on systems where the command
415 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
416 /etc/GNUstep/GNUstep.conf])])
417 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
418 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
419 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
420 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
422 AC_ARG_ENABLE(ns-self-contained,
423 [AS_HELP_STRING([--disable-ns-self-contained],
424 [disable self contained build under NeXTstep])],
425 EN_NS_SELF_CONTAINED=$enableval,
426 EN_NS_SELF_CONTAINED=yes)
429 AC_ARG_ENABLE(locallisppath,
430 [AS_HELP_STRING([--enable-locallisppath=PATH],
431 [directories Emacs should search for lisp files specific
433 if test "${enableval}" = "no"; then
435 elif test "${enableval}" != "yes"; then
436 locallisppath=${enableval} locallisppathset=yes
439 AC_ARG_ENABLE(checking,
440 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
441 [enable expensive run-time checks. With LIST,
442 enable only specific categories of checks.
443 Categories are: all,yes,no.
444 Flags are: stringbytes, stringoverrun, stringfreelist,
445 xmallocoverrun, conslist, glyphs])],
446 [ac_checking_flags="${enableval}"],[])
447 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
448 for check in $ac_checking_flags
451 # these set all the flags to specific states
452 yes) ac_enable_checking=1 ;;
453 no) ac_enable_checking= ;
454 ac_gc_check_stringbytes= ;
455 ac_gc_check_string_overrun= ;
456 ac_gc_check_string_free_list= ;
457 ac_xmalloc_overrun= ;
458 ac_gc_check_cons_list= ;
460 all) ac_enable_checking=1 ;
461 ac_gc_check_stringbytes=1 ;
462 ac_gc_check_string_overrun=1 ;
463 ac_gc_check_string_free_list=1 ;
464 ac_xmalloc_overrun=1 ;
465 ac_gc_check_cons_list=1 ;
467 # these enable particular checks
468 stringbytes) ac_gc_check_stringbytes=1 ;;
469 stringoverrun) ac_gc_check_string_overrun=1 ;;
470 stringfreelist) ac_gc_check_string_free_list=1 ;;
471 xmallocoverrun) ac_xmalloc_overrun=1 ;;
472 conslist) ac_gc_check_cons_list=1 ;;
473 glyphs) ac_glyphs_debug=1 ;;
474 *) AC_MSG_ERROR(unknown check category $check) ;;
479 if test x$ac_enable_checking != x ; then
480 AC_DEFINE(ENABLE_CHECKING, 1,
481 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
483 if test x$ac_gc_check_stringbytes != x ; then
484 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
485 [Define this temporarily to hunt a bug. If defined, the size of
486 strings is redundantly recorded in sdata structures so that it can
487 be compared to the sizes recorded in Lisp strings.])
489 if test x$ac_gc_check_string_overrun != x ; then
490 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
491 [Define this to check for short string overrun.])
493 if test x$ac_gc_check_string_free_list != x ; then
494 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
495 [Define this to check the string free list.])
497 if test x$ac_xmalloc_overrun != x ; then
498 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
499 [Define this to check for malloc buffer overrun.])
501 if test x$ac_gc_check_cons_list != x ; then
502 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
503 [Define this to check for errors in cons list.])
505 if test x$ac_glyphs_debug != x ; then
506 AC_DEFINE(GLYPH_DEBUG, 1,
507 [Define this to enable glyphs debugging code.])
510 dnl The name of this option is unfortunate. It predates, and has no
511 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
512 dnl Actually, it stops it working.
513 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
514 AC_ARG_ENABLE(profiling,
515 [AS_HELP_STRING([--enable-profiling],
516 [build emacs with low-level, gprof profiling support.
517 Mainly useful for debugging Emacs itself. May not work on
518 all platforms. Stops profiler.el working.])],
519 [ac_enable_profiling="${enableval}"],[])
520 if test x$ac_enable_profiling != x ; then
521 PROFILING_CFLAGS="-DPROFILING=1 -pg"
525 AC_SUBST(PROFILING_CFLAGS)
527 AC_ARG_ENABLE(autodepend,
528 [AS_HELP_STRING([--enable-autodepend],
529 [automatically generate dependencies to .h-files.
530 Requires gcc, enabled if found.])],
531 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
533 AC_ARG_ENABLE(gtk-deprecation-warnings,
534 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
535 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
536 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
539 AC_ARG_ENABLE([build-details],
540 [AS_HELP_STRING([--disable-build-details],
541 [Make the build more deterministic by omitting host
542 names, time stamps, etc. from the output.])],
543 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
544 AC_SUBST([BUILD_DETAILS])
546 dnl This used to use changequote, but, apart from 'changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / macOS
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## FIXME: Find a way to use Fink if available (Bug#11507).
610 ## Chromium Native Client
620 ## HP 9000 series 700 and 800, running HP/UX
624 hppa*-hp-hpux1[1-9]* )
626 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
630 rs6000-ibm-aix4.[23]* )
633 powerpc-ibm-aix4.[23]* )
636 rs6000-ibm-aix[56]* )
639 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
645 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
646 | x86_64-*-solaris2* | x86_64-*-sunos5*)
647 case "${canonical}" in
649 amd64-*-*|x86_64-*-*) ;;
653 case "${canonical}" in
654 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
656 emacs_check_sunpro_c=yes
658 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
659 ## Note that Emacs 23.1's NEWS said the following would be dropped.
660 *-sunos5.6* | *-solaris2.6* )
664 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
665 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
667 emacs_check_sunpro_c=yes
670 ## Watch out for a compiler that we know will not work.
671 case "${canonical}" in
672 *-solaris* | *-sunos5* )
673 if [ "x$CC" = x/usr/ucb/cc ]; then
674 ## /usr/ucb/cc doesn't work;
675 ## we should find some other compiler that does work.
683 ## Intel 386 machines where we don't care about the manufacturer.
685 case "${canonical}" in
686 *-darwin* ) opsys=darwin ;;
689 # MinGW overrides and adds some system headers in nt/inc.
690 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
692 *-sysv4.2uw* ) opsys=unixware ;;
693 *-sysv5uw* ) opsys=unixware ;;
694 *-sysv5OpenUNIX* ) opsys=unixware ;;
695 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
701 case "${canonical}" in
704 # MinGW overrides and adds some system headers in nt/inc.
705 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
707 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
716 ### If the code above didn't choose an operating system, just choose
717 ### an operating system based on the configuration name. You really
718 ### only want to use this when you have no idea what the right
719 ### operating system is; if you know what operating systems a machine
720 ### runs, it's cleaner to make it explicit in the case statement
722 if test x"${opsys}" = x; then
723 case "${canonical}" in
724 *-gnu* ) opsys=gnu ;;
734 if test $unported = yes; then
735 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
736 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
737 Check 'etc/MACHINES' for recognized configuration names.])
740 #### Choose a compiler.
742 dnl Don't bother to test for C89.
743 AC_DEFUN([_AC_PROG_CC_C89], [$2])
745 dnl Sets GCC=yes if using gcc.
746 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
747 if test -n "$XCRUN"; then
748 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
749 test -n "$AR" && export AR
752 dnl Emacs needs C99 or later.
757 if test x$GCC = xyes; then
758 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
761 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
762 AC_DEFUN([gl_CRYPTO_CHECK])
763 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
764 # as we don't use them.
765 AC_DEFUN([gl_FCNTL_O_FLAGS])
766 # Avoid gnulib's test for pthread_sigmask.
768 for func in $ac_func_list; do
769 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
772 # Use the system putenv even if it lacks GNU features, as we don't need them,
773 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
774 AC_CHECK_FUNCS_ONCE([putenv])
775 AC_DEFUN([gl_FUNC_PUTENV],
776 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
777 # Emacs does not use the wchar or wctype-h modules.
778 AC_DEFUN([gt_TYPE_WINT_T],
779 [GNULIB_OVERRIDES_WINT_T=0
780 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
782 # Initialize gnulib right after choosing the compiler.
783 dnl Amongst other things, this sets AR and ARFLAGS.
786 if test "$ac_test_CFLAGS" != set; then
787 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
788 # if -g3 works and the user does not specify CFLAGS.
789 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
792 emacs_g3_CFLAGS='-g3';;
794 emacs_g3_CFLAGS='-g3 -O2';;
798 if test -n "$emacs_g3_CFLAGS"; then
799 emacs_save_CFLAGS=$CFLAGS
800 CFLAGS=$emacs_g3_CFLAGS
801 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
802 [emacs_cv_prog_cc_g3],
803 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
804 [emacs_cv_prog_cc_g3=yes],
805 [emacs_cv_prog_cc_g3=no])])
806 if test $emacs_cv_prog_cc_g3 != yes; then
807 CFLAGS=$emacs_save_CFLAGS
809 if test $opsys = mingw32; then
810 CFLAGS="$CFLAGS -gdwarf-2"
817 # No optimization flag was inferred for this non-GCC compiler.
818 # Try -O. This is needed for xlc on AIX; see Bug#14258.
819 emacs_save_CFLAGS=$CFLAGS
820 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
822 AC_CACHE_CHECK([whether $CC accepts -O],
823 [emacs_cv_prog_cc_o],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_o=yes],
826 [emacs_cv_prog_cc_o=no])])
827 if test $emacs_cv_prog_cc_o != yes; then
828 CFLAGS=$emacs_save_CFLAGS
833 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
834 # ---------------------------------------------------------------------------
835 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
836 # Otherwise, run RUN-IF-NOT-FOUND.
837 AC_DEFUN([gl_GCC_VERSION_IFELSE],
841 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
844 # error "your version of gcc is older than $1.$2"
851 AC_ARG_ENABLE([gcc-warnings],
852 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
853 [control generation of GCC warnings. The TYPE 'yes'
854 means to fail if any warnings are issued; 'warn-only'
855 means issue warnings without failing (default for
856 developer builds); 'no' means disable warnings
857 (default for non-developer builds).])],
860 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
862 gl_gcc_warnings=$enableval],
863 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
864 # is a developer as opposed to a builder. This is most likely true
865 # if GCC is recent enough and there is a .git directory or file;
866 # however, if there is also a .tarball-version file it is probably
867 # just a release imported into Git for patch management.
869 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
870 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
873 AC_ARG_ENABLE([check-lisp-object-type],
874 [AS_HELP_STRING([--enable-check-lisp-object-type],
875 [Enable compile-time checks for the Lisp_Object data type,
876 which can catch some bugs during development.
877 The default is "no" if --enable-gcc-warnings is "no".])])
878 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
879 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
880 [Define to enable compile-time checks for the Lisp_Object data type.])
883 # clang is unduly picky about some things.
884 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
891 [emacs_cv_clang=yes],
892 [emacs_cv_clang=no])])
895 # When compiling with GCC, prefer -isystem to -I when including system
896 # include files, to avoid generating useless diagnostics for the files.
897 AS_IF([test $gl_gcc_warnings = no],
900 AS_IF([test "$emacs_cv_clang" = yes],
902 # Turn off some warnings if supported.
903 gl_WARN_ADD([-Wno-switch])
904 gl_WARN_ADD([-Wno-pointer-sign])
905 gl_WARN_ADD([-Wno-string-plus-int])
906 gl_WARN_ADD([-Wno-unknown-attributes])
911 # This, $nw, is the list of warnings we disable.
914 case $with_x_toolkit in
915 lucid | athena | motif)
916 # Old toolkits mishandle 'const'.
917 nw="$nw -Wwrite-strings"
920 AS_IF([test $gl_gcc_warnings = yes],
921 [WERROR_CFLAGS=-Werror])
923 nw="$nw -Wduplicated-branches" # Too many false alarms
924 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
925 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
926 nw="$nw -Woverlength-strings" # Not a problem these days
927 nw="$nw -Wformat-nonliteral" # we do this a lot
928 nw="$nw -Wvla" # Emacs uses <vla.h>.
929 nw="$nw -Wswitch-default" # Too many warnings for now
930 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
931 nw="$nw -Winline" # OK to ignore 'inline'
932 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
933 # signed overflow has undefined behavior
934 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
935 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
936 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
938 # Emacs doesn't care about shadowing; see
939 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
942 # Emacs's use of alloca inhibits protecting the stack.
943 nw="$nw -Wstack-protector"
945 # Emacs's use of partly-const functions such as Fgnutls_available_p
946 # make this option problematic.
947 nw="$nw -Wsuggest-attribute=const"
949 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
950 # option problematic.
951 nw="$nw -Wsuggest-attribute=pure"
953 # This part is merely for shortening the command line,
954 # since -Wall implies -Wswitch.
957 # This part is merely for shortening the command line,
958 # since -Wno-FOO needs to be added below regardless.
959 nw="$nw -Wmissing-field-initializers"
960 nw="$nw -Woverride-init"
961 nw="$nw -Wtype-limits"
962 nw="$nw -Wunused-parameter"
964 if test "$emacs_cv_clang" = yes; then
965 nw="$nw -Wcast-align"
966 nw="$nw -Wdouble-promotion"
967 nw="$nw -Wmissing-braces"
970 # This causes too much noise in the MinGW build
971 if test $opsys = mingw32; then
972 nw="$nw -Wpointer-sign"
975 gl_MANYWARN_ALL_GCC([ws])
976 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
980 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
981 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
982 gl_WARN_ADD([-Wno-override-init]) # More trouble than it is worth
983 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
984 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
985 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
986 gl_WARN_ADD([-Wno-format-nonliteral])
988 # clang is unduly picky about braces.
989 if test "$emacs_cv_clang" = yes; then
990 gl_WARN_ADD([-Wno-missing-braces])
993 # This causes too much noise in the MinGW build
994 if test $opsys = mingw32; then
995 gl_WARN_ADD([-Wno-pointer-sign])
998 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
999 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1000 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1001 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1002 without upsetting glibc 2.15+. */
1003 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1004 && defined __OPTIMIZE__ && __OPTIMIZE__)
1005 # define _FORTIFY_SOURCE 2
1010 # clang is picky about these regardless of whether
1011 # --enable-gcc-warnings is specified.
1012 if test "$emacs_cv_clang" = yes; then
1013 gl_WARN_ADD([-Wno-initializer-overrides])
1014 gl_WARN_ADD([-Wno-tautological-compare])
1015 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
1018 # Use a slightly smaller set of warning options for lib/.
1020 nw="$nw -Wunused-macros"
1021 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1023 AC_SUBST([WERROR_CFLAGS])
1024 AC_SUBST([GNULIB_WARN_CFLAGS])
1033 AC_ARG_ENABLE(link-time-optimization,
1034 [AS_HELP_STRING([--enable-link-time-optimization],
1035 [build emacs with link-time optimization.
1036 This requires GCC 4.5.0 or later, or clang.
1037 (Note that clang support is experimental - see INSTALL.)
1038 It also makes Emacs harder to debug, and when we tried it
1039 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1040 recommended for typical use.])],
1041 if test "${enableval}" != "no"; then
1043 if test "$emacs_cv_clang" = yes; then
1044 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1045 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1046 if test -x "$GOLD_PLUGIN"; then
1049 elif test x$GCC = xyes; then
1050 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1051 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1052 if test x$CPUS != x; then
1058 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1060 if test -z "$LTO"; then
1064 CFLAGS="$CFLAGS $LTO"
1065 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1066 [ac_lto_supported=yes], [ac_lto_supported=no])
1067 CFLAGS="$old_CFLAGS"
1069 AC_MSG_RESULT([$ac_lto_supported])
1070 if test "$ac_lto_supported" = "yes"; then
1071 CFLAGS="$CFLAGS $LTO"
1072 if test "$emacs_cv_clang" = yes; then
1073 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1074 # WARNING: 'ar --plugin ...' doesn't work without
1075 # command, so plugin name is appended to ARFLAGS.
1076 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1077 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1079 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1080 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1081 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1082 dnl dump core on Fedora 20, so play it safe for now.
1083 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1084 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1090 dnl Automake replacements.
1091 AC_DEFUN([AM_CONDITIONAL],
1095 dnl Prefer silent make output. For verbose output, use
1096 dnl 'configure --disable-silent-rules' or 'make V=1' .
1097 dnl This code is adapted from Automake.
1098 dnl Although it can be simplified now that GNU Make is assumed,
1099 dnl the simplification hasn't been done yet.
1100 AC_ARG_ENABLE([silent-rules],
1102 [--disable-silent-rules],
1103 [verbose build output (undo: "make V=0")])])
1104 if test "$enable_silent_rules" = no; then
1105 AM_DEFAULT_VERBOSITY=1
1107 AM_DEFAULT_VERBOSITY=0
1110 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1112 AC_SUBST([AM_DEFAULT_V])
1113 AC_SUBST([AM_DEFAULT_VERBOSITY])
1115 dnl Some other nice autoconf tests.
1117 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1119 dnl if test "x$RANLIB" = x; then
1124 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1125 dnl can be made to directories. This is not relevant for our usage, and
1126 dnl excludes some cases that work fine for us. Eg MS Windows or files
1127 dnl hosted on AFS, both examples where simple links work, but links to
1128 dnl directories fail. We use a cut-down version instead.
1131 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1132 rm -f conf$$ conf$$.file
1134 LN_S_FILEONLY='cp -p'
1136 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1137 dnl random program in the current directory.
1138 if (echo >conf$$.file) 2>/dev/null; then
1139 if ln -s conf$$.file conf$$ 2>/dev/null; then
1140 if test "$opsys" = "mingw32"; then
1141 LN_S_FILEONLY='/bin/ln -s'
1143 LN_S_FILEONLY='ln -s'
1145 elif ln conf$$.file conf$$ 2>/dev/null; then
1146 if test "$opsys" = "mingw32"; then
1147 LN_S_FILEONLY=/bin/ln
1154 rm -f conf$$ conf$$.file
1156 if test "$LN_S_FILEONLY" = "ln -s"; then
1157 AC_MSG_RESULT([yes])
1159 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1162 AC_SUBST(LN_S_FILEONLY)
1165 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1166 dnl doesn't support links to directories, as in "ln file dir". But that
1167 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1168 dnl executables at "make install" time.
1169 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1170 dnl for more details.
1171 if test "$opsys" = "mingw32"; then
1175 dnl On some Debian versions, "install-info" prints irritating messages
1176 dnl "This is not dpkg install-info anymore, but GNU install-info"
1177 dnl if called via an absolute file name.
1178 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1179 dnl Sadly some people may have an old ginstall-info installed on
1180 dnl non-Debian systems, so we can't use this.
1181 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1182 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1184 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1185 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1186 dnl Don't use GZIP, which is used by gzip for additional parameters.
1187 AC_PATH_PROG(GZIP_PROG, gzip)
1189 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1190 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1192 AC_CACHE_CHECK([for 'find' args to delete a file],
1193 [emacs_cv_find_delete],
1194 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1195 test ! -f conftest.tmp
1196 then emacs_cv_find_delete="-delete"
1197 else emacs_cv_find_delete="-exec rm -f {} ';'"
1199 FIND_DELETE=$emacs_cv_find_delete
1200 AC_SUBST([FIND_DELETE])
1204 if test $opsys = gnu-linux; then
1205 if test "${SETFATTR+set}" != set; then
1206 AC_CACHE_CHECK([for setfattr],
1207 [emacs_cv_prog_setfattr],
1209 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1210 emacs_cv_prog_setfattr=yes
1212 emacs_cv_prog_setfattr=no
1214 if test "$emacs_cv_prog_setfattr" = yes; then
1215 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1221 AC_SUBST([SETFATTR])
1224 case $opsys,$PAXCTL_notdumped in
1225 gnu-linux, | netbsd,)
1226 AC_PATH_PROG([PAXCTL], [paxctl], [],
1227 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1228 if test -n "$PAXCTL"; then
1229 if test "$opsys" = netbsd; then
1230 PAXCTL_dumped='$(PAXCTL) +a'
1231 PAXCTL_notdumped=$PAXCTL_dumped
1233 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1234 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1235 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1236 AC_MSG_RESULT([yes])
1241 if test -n "$PAXCTL"; then
1242 PAXCTL_dumped='$(PAXCTL) -zex'
1243 PAXCTL_notdumped='$(PAXCTL) -r'
1248 AC_SUBST([PAXCTL_dumped])
1249 AC_SUBST([PAXCTL_notdumped])
1251 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1252 if test "${MAKEINFO:=makeinfo}" != "no"; then
1253 case `($MAKEINFO --version) 2>/dev/null` in
1254 *' (GNU texinfo) '4.1[[3-9]]* | \
1255 *' (GNU texinfo) '[[5-9]]* | \
1256 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1261 ## Makeinfo is unusual. For a released Emacs, the manuals are
1262 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1263 ## therefore in the category of "special tools" not normally required, which
1264 ## configure does not have to check for (eg autoconf itself).
1265 ## In a repository checkout on the other hand, the manuals are not included.
1266 ## So makeinfo is a requirement to build from the repository, and configure
1267 ## should test for it as it does for any other build requirement.
1268 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1269 ## with pre-built manuals, from a repository checkout.
1272 if test "$MAKEINFO" = "no"; then
1274 if test "x${with_makeinfo}" = "xno"; then
1276 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1277 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1278 source tree does not seem to have pre-built manuals in the 'info' directory.
1279 Either install a suitable version of makeinfo, or re-run configure
1280 with the '--without-makeinfo' option to build without the manuals.] )
1283 AC_SUBST([MAKEINFO])
1284 AC_SUBST(HAVE_MAKEINFO)
1286 if test $opsys = mingw32; then
1287 DOCMISC_W32=efaq-w32
1291 AC_SUBST(DOCMISC_W32)
1293 dnl Add our options to ac_link now, after it is set up.
1295 if test x$GCC = xyes; then
1296 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1297 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1299 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1300 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1303 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1304 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1305 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1306 dnl if not built to support GNU ld.
1308 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1309 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1310 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1311 dnl Eg "make LDFLAGS=... all" could run into problems,
1312 dnl http://bugs.debian.org/684788
1313 dnl * unnecessary, since temacs is the only thing that actually needs it.
1314 dnl Indeed this is where it was originally, prior to:
1315 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1316 late_LDFLAGS="$LDFLAGS"
1317 if test x$GCC = xyes; then
1318 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1320 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1323 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1325 AC_MSG_CHECKING([for -znocombreloc])
1326 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1327 [AC_MSG_RESULT(yes)],
1328 LDFLAGS_NOCOMBRELOC=
1329 [AC_MSG_RESULT(no)])
1331 LDFLAGS="$late_LDFLAGS"
1333 AC_CACHE_CHECK([whether addresses are sanitized],
1334 [emacs_cv_sanitize_address],
1337 [[#ifndef __has_feature
1338 #define __has_feature(f) 0
1340 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1342 error "Addresses are not sanitized.";
1345 [emacs_cv_sanitize_address=yes],
1346 [emacs_cv_sanitize_address=no])])
1348 dnl The function dump-emacs will not be defined and temacs will do
1349 dnl (load "loadup") automatically unless told otherwise.
1350 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1352 nacl) CANNOT_DUMP=yes ;;
1355 if test "$CANNOT_DUMP" = "yes"; then
1356 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1357 elif test "$emacs_cv_sanitize_address" = yes; then
1358 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1361 AC_SUBST(CANNOT_DUMP)
1364 UNEXEC_OBJ=unexelf.o
1366 # MSDOS uses unexcoff.o
1368 UNEXEC_OBJ=unexaix.o
1374 UNEXEC_OBJ=unexmacosx.o
1377 UNEXEC_OBJ=unexhp9k800.o
1380 UNEXEC_OBJ=unexw32.o
1383 # Use the Solaris dldump() function, called from unexsol.c, to dump
1384 # emacs, instead of the generic ELF dump code found in unexelf.c.
1385 # The resulting binary has a complete symbol table, and is better
1386 # for debugging and other observability tools (debuggers, pstack, etc).
1388 # If you encounter a problem using dldump(), please consider sending
1389 # a message to the OpenSolaris tools-linking mailing list:
1390 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1392 # It is likely that dldump() works with older Solaris too, but this has
1393 # not been tested, so for now this change is for Solaris 10 or newer.
1394 UNEXEC_OBJ=unexsol.o
1397 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1402 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1403 ## The system compiler, GCC, has apparently been modified to not
1404 ## look there, contrary to what a stock GCC would do.
1405 ### It's not our place to do this. See bug#10313#17.
1406 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1411 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1412 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1416 ### It's not our place to do this. See bug#10313#17.
1417 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1422 ## Han Boetes <han@boetes.org> says this is necessary,
1423 ## otherwise Emacs dumps core on elf systems.
1424 LD_SWITCH_SYSTEM="-Z"
1427 AC_SUBST(LD_SWITCH_SYSTEM)
1429 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1431 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1432 ## which has not been defined yet. When this was handled with cpp,
1433 ## it was expanded to null when configure sourced the s/*.h file.
1434 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1435 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1436 ## (or somesuch), but because it is supposed to go at the _front_
1437 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1438 ## Compare with the gnu-linux case below, which added to the end
1439 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1440 ## LD_SWITCH_SYSTEM_TEMACS.
1443 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1450 AC_CHECK_DECL([__ELF__])
1451 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1452 ## With ELF, make sure that all common symbols get allocated to in the
1453 ## data section. Otherwise, the dump of temacs may miss variables in
1454 ## the shared library that have been initialized. For example, with
1455 ## GNU libc, __malloc_initialized would normally be resolved to the
1456 ## shared library's .bss section, which is fatal.
1457 if test "x$GCC" = "xyes"; then
1458 C_SWITCH_MACHINE="-fno-common"
1460 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1463 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1464 dnl albeit under the mistaken assumption that said file
1465 dnl was no longer used.
1466 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1470 AC_SUBST(C_SWITCH_MACHINE)
1472 AC_SUBST(UNEXEC_OBJ)
1475 ## Some programs in src produce warnings saying certain subprograms
1476 ## are too complex and need a MAXMEM value greater than 2000 for
1477 ## additional optimization. --nils@exp-math.uni-essen.de
1478 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1479 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1480 if test "$opsys" = "mingw32"; then
1481 case "$canonical" in
1482 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1483 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1486 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1487 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1488 AC_SUBST(C_SWITCH_SYSTEM)
1493 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1494 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1496 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1498 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1500 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1502 ## Motif needs -lgen.
1503 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1506 AC_SUBST(LIBS_SYSTEM)
1508 ### Make sure subsequent tests use flags consistent with the build flags.
1510 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1511 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1513 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1516 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1517 AC_DEFUN([AC_TYPE_SIZE_T])
1518 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1519 AC_DEFUN([AC_TYPE_UID_T])
1521 # sqrt and other floating-point functions such as fmod and frexp
1522 # are found in -lm on many systems.
1524 AC_SEARCH_LIBS([sqrt], [m])
1525 if test "X$LIBS" = "X$OLD_LIBS"; then
1528 LIB_MATH=$ac_cv_search_sqrt
1532 dnl Current possibilities handled by sed (aix4-2 -> aix,
1533 dnl gnu-linux -> gnu/linux, etc.):
1534 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1535 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1536 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1543 ## Adding -lm confuses the dynamic linker, so omit it.
1546 freebsd | dragonfly )
1547 SYSTEM_TYPE=berkeley-unix
1549 gnu-linux | gnu-kfreebsd )
1551 hpux10-20 | hpux11 )
1555 SYSTEM_TYPE=windows-nt
1557 dnl NB this may be adjusted below.
1559 SYSTEM_TYPE=berkeley-unix
1563 SYSTEM_TYPE=usg-unix-v
1569 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1570 [The type of system you are compiling for; sets 'system-type'.])
1571 AC_SUBST([SYSTEM_TYPE])
1574 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1575 pre_PKG_CONFIG_LIBS=$LIBS
1577 PKG_PROG_PKG_CONFIG(0.9.0)
1579 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1580 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1581 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1582 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1583 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1584 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1586 AC_DEFUN([EMACS_CHECK_MODULES],
1587 [PKG_CHECK_MODULES([$1], [$2],
1588 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1589 m4_default([$3], [HAVE_$1=yes])],
1590 [m4_default([$4], [HAVE_$1=no])])])
1593 if test "${with_sound}" != "no"; then
1594 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1595 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1596 have_sound_header=yes, [], [
1598 #define WIN32_LEAN_AND_MEAN
1599 #include <windows.h>
1602 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1603 AC_MSG_ERROR([OSS sound support requested but not found.])
1605 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1606 # Emulation library used on NetBSD.
1607 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1608 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1609 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1610 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1611 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1615 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1617 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1618 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1619 if test $HAVE_ALSA = yes; then
1620 SAVE_CFLAGS="$CFLAGS"
1622 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1623 LIBS="$ALSA_LIBS $LIBS"
1624 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1625 emacs_alsa_normal=yes,
1626 emacs_alsa_normal=no)
1627 if test "$emacs_alsa_normal" != yes; then
1628 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1629 [[snd_lib_error_set_handler (0);]])],
1630 emacs_alsa_subdir=yes,
1631 emacs_alsa_subdir=no)
1632 if test "$emacs_alsa_subdir" != yes; then
1633 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1635 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1638 CFLAGS="$SAVE_CFLAGS"
1640 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1641 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1642 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1643 elif test "${with_sound}" = "alsa"; then
1644 AC_MSG_ERROR([ALSA sound support requested but not found.])
1646 fi dnl with_sound = alsa|yes
1648 dnl Define HAVE_SOUND if we have sound support. We know it works and
1649 dnl compiles only on the specified platforms. For others, it
1650 dnl probably doesn't make sense to try.
1651 dnl FIXME So surely we should bypass this whole section if not using
1652 dnl one of these platforms?
1653 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1655 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1656 dnl Adjust the --with-sound help text if you change this.
1657 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1658 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1664 AC_SUBST(CFLAGS_SOUND)
1667 dnl checks for header files
1668 AC_CHECK_HEADERS_ONCE(
1675 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1677 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1678 [emacs_cv_personality_addr_no_randomize],
1680 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1681 [[personality (personality (0xffffffff)
1682 | ADDR_NO_RANDOMIZE)]])],
1683 [emacs_cv_personality_addr_no_randomize=yes],
1684 [emacs_cv_personality_addr_no_randomize=no])])
1685 if test $emacs_cv_personality_addr_no_randomize = yes; then
1686 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1687 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1690 # Note that Solaris has sys/sysinfo.h which defines struct
1691 # sysinfo as well. To make sure that we're using GNU/Linux
1692 # sysinfo, we explicitly set one of its fields.
1693 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1694 AC_MSG_CHECKING([if Linux sysinfo may be used])
1695 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1696 [[struct sysinfo si;
1699 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1700 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1701 if test $emacs_cv_linux_sysinfo = yes; then
1702 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1703 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1704 [[struct sysinfo si; return si.mem_unit]])],
1705 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1706 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1710 dnl On Solaris 8 there's a compilation warning for term.h because
1711 dnl it doesn't define 'bool'.
1712 AC_CHECK_HEADERS(term.h, , , -)
1714 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1716 if test $ac_cv_have_decl_sys_siglist != yes; then
1717 # For Tru64, at least:
1718 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1723 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1724 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1725 #if HAVE_SYS_SOCKET_H
1726 #include <sys/socket.h>
1728 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1729 #if HAVE_SYS_SOCKET_H
1730 #include <sys/socket.h>
1732 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1733 #if HAVE_SYS_SOCKET_H
1734 #include <sys/socket.h>
1737 dnl checks for structure members
1738 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1739 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1740 struct ifreq.ifr_addr,
1741 struct ifreq.ifr_addr.sa_len], , ,
1742 [AC_INCLUDES_DEFAULT
1743 #if HAVE_SYS_SOCKET_H
1744 #include <sys/socket.h>
1750 dnl Check for endianness.
1751 dnl AC_C_BIGENDIAN is done by gnulib.
1753 dnl check for Make feature
1756 AUTODEPEND_PARENTS='lib src'
1757 dnl check if we have GCC and autodepend is on.
1758 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1759 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1760 SAVE_CFLAGS="$CFLAGS"
1761 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1762 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1763 CFLAGS="$SAVE_CFLAGS"
1764 test -f deps.d || ac_enable_autodepend=no
1766 AC_MSG_RESULT([$ac_enable_autodepend])
1767 if test $ac_enable_autodepend = yes; then
1771 AC_SUBST(AUTO_DEPEND)
1773 dnl checks for operating system services
1774 AC_SYS_LONG_FILE_NAMES
1776 #### Choose a window system.
1778 ## We leave window_system equal to none if
1779 ## we end up building without one. Any new window system should
1780 ## set window_system to an appropriate value and add objects to
1781 ## window-system-specific substs.
1785 if test "$no_x" != yes; then
1789 LD_SWITCH_X_SITE_RPATH=
1790 if test "${x_libraries}" != NONE; then
1791 if test -n "${x_libraries}"; then
1792 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1793 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1794 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1797 x_default_search_path=""
1798 x_search_path=${x_libraries}
1799 if test -z "${x_search_path}"; then
1800 x_search_path=/usr/lib
1802 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1803 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1805 ${x_library}/X11/%L/%T/%N%C%S:\
1806 ${x_library}/X11/%l/%T/%N%C%S:\
1807 ${x_library}/X11/%T/%N%C%S:\
1808 ${x_library}/X11/%L/%T/%N%S:\
1809 ${x_library}/X11/%l/%T/%N%S:\
1810 ${x_library}/X11/%T/%N%S"
1811 if test x"${x_default_search_path}" = x; then
1812 x_default_search_path=${x_search_path}
1814 x_default_search_path="${x_search_path}:${x_default_search_path}"
1818 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1820 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1821 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1824 if test x"${x_includes}" = x; then
1825 bitmapdir=/usr/include/X11/bitmaps
1827 # accumulate include directories that have X11 bitmap subdirectories
1829 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1830 if test -d "${bmd}/X11/bitmaps"; then
1831 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1833 if test -d "${bmd}/bitmaps"; then
1834 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1837 bitmapdir=${bmd_acc#:}
1840 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1842 NS_GNUSTEP_CONFIG=no
1845 tmp_CPPFLAGS="$CPPFLAGS"
1846 tmp_CFLAGS="$CFLAGS"
1847 CPPFLAGS="$CPPFLAGS -x objective-c"
1848 CFLAGS="$CFLAGS -x objective-c"
1851 if test "${with_ns}" != no; then
1852 if test "${opsys}" = darwin; then
1854 ns_appdir=`pwd`/nextstep/Emacs.app
1855 ns_appbindir=${ns_appdir}/Contents/MacOS
1856 ns_appresdir=${ns_appdir}/Contents/Resources
1857 ns_appsrc=Cocoa/Emacs.base
1858 ns_fontfile=macfont.o
1859 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1861 NS_GNUSTEP_CONFIG=yes
1862 GNU_OBJC_CFLAGS=$flags
1863 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1864 elif test -f $GNUSTEP_CONFIG_FILE; then
1866 dnl FIXME sourcing this several times in subshells seems inefficient.
1867 GNUSTEP_SYSTEM_HEADERS=$(
1868 . $GNUSTEP_CONFIG_FILE
1869 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1871 GNUSTEP_SYSTEM_LIBRARIES=$(
1872 . $GNUSTEP_CONFIG_FILE
1873 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1875 dnl I seemed to need these as well with GNUstep-startup 0.25.
1876 GNUSTEP_LOCAL_HEADERS=$(
1877 . $GNUSTEP_CONFIG_FILE
1878 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1880 GNUSTEP_LOCAL_LIBRARIES=$(
1881 . $GNUSTEP_CONFIG_FILE
1882 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1884 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1885 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1886 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1887 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1888 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1889 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1890 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1891 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1892 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1893 dnl If they had chosen to either define it or not, we could have
1894 dnl just used AC_CHECK_DECL here.
1895 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1896 emacs_cv_objc_exceptions,
1897 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1898 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1902 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1903 if test $emacs_cv_objc_exceptions = yes; then
1904 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1905 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1906 [Define if GNUstep uses ObjC exceptions.])
1907 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1910 if test $NS_IMPL_GNUSTEP = yes; then
1911 ns_appdir=`pwd`/nextstep/Emacs.app
1912 ns_appbindir=${ns_appdir}
1913 ns_appresdir=${ns_appdir}/Resources
1914 ns_appsrc=GNUstep/Emacs.base
1915 ns_fontfile=nsfont.o
1918 dnl This is only used while we test the NS headers, it gets reset below.
1919 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1920 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1922 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1923 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1924 are required for a Nextstep build are missing or cannot be compiled.
1925 Either fix this, or re-configure with the option '--without-ns'.])])
1928 if test "${NS_IMPL_COCOA}" = "yes"; then
1929 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1930 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1932 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1933 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1936 error "Mac OS X 10.6 or newer required";
1940 ns_osx_have_106=yes,
1942 AC_MSG_RESULT([$ns_osx_have_106])
1944 if test $ns_osx_have_106 = no; then
1945 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1950 AC_SUBST(LIBS_GNUSTEP)
1952 INSTALL_ARCH_INDEP_EXTRA=install-etc
1953 ns_self_contained=no
1956 if test "${HAVE_NS}" = yes; then
1957 if test "$with_toolkit_scroll_bars" = "no"; then
1958 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1961 window_system=nextstep
1962 # set up packaging dirs
1963 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1964 ns_self_contained=yes
1965 prefix=${ns_appresdir}
1966 exec_prefix=${ns_appbindir}
1967 dnl This one isn't really used, only archlibdir is.
1968 libexecdir="\${ns_appbindir}/libexec"
1969 archlibdir="\${ns_appbindir}/libexec"
1970 etcdocdir="\${ns_appresdir}/etc"
1971 etcdir="\${ns_appresdir}/etc"
1972 dnl FIXME maybe set datarootdir instead.
1973 dnl That would also get applications, icons, man.
1974 infodir="\${ns_appresdir}/info"
1975 mandir="\${ns_appresdir}/man"
1976 lispdir="\${ns_appresdir}/lisp"
1977 test "$locallisppathset" = no && locallisppath=""
1978 INSTALL_ARCH_INDEP_EXTRA=
1981 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1983 CFLAGS="$tmp_CFLAGS"
1984 CPPFLAGS="$tmp_CPPFLAGS"
1985 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1986 AC_SUBST(ns_self_contained)
1988 AC_SUBST(NS_OBJC_OBJ)
1990 if test "${HAVE_NS}" = yes; then
1992 [if the Objective C compiler supports instancetype],
1993 [emacs_cv_objc_instancetype],
1994 [AC_LANG_PUSH([Objective C])
1996 [AC_LANG_SOURCE([[@interface Test
1997 + (instancetype)test;
1999 emacs_cv_objc_instancetype=yes,
2000 emacs_cv_objc_instancetype=no)
2001 AC_LANG_POP([Objective C])])
2003 if test x$emacs_cv_objc_instancetype = xyes ; then
2004 AC_DEFINE(NATIVE_OBJC_INSTANCETYPE, 1,
2005 [Define if ObjC compiler supports instancetype natively.])
2017 if test "${with_w32}" != no; then
2020 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
2021 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
2022 cannot be found.])])
2025 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2028 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2033 if test "${opsys}" = "mingw32"; then
2034 AC_MSG_CHECKING([whether Windows API headers are recent enough])
2035 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2036 #include <windows.h>
2037 #include <usp10.h>]],
2038 [[PIMAGE_NT_HEADERS pHeader;
2039 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2040 [emacs_cv_w32api=yes
2043 AC_MSG_RESULT($emacs_cv_w32api)
2044 if test "${emacs_cv_w32api}" = "no"; then
2045 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2056 if test "${HAVE_W32}" = "yes"; then
2057 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2058 if test "$with_toolkit_scroll_bars" = "no"; then
2059 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2061 AC_CHECK_TOOL(WINDRES, [windres],
2062 [AC_MSG_ERROR([No resource compiler found.])])
2063 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2064 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2065 EMACSRES="emacs.res"
2066 case "$canonical" in
2067 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2068 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2070 dnl Construct something of the form "24,4,0,0" with 4 components.
2071 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2073 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2074 AC_SUBST(comma_version)
2075 AC_SUBST(comma_space_version)
2076 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2077 if test "${opsys}" = "cygwin"; then
2078 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
2079 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
2080 # Tell the linker that emacs.res is an object (which we compile from
2081 # the rc file), not a linker script.
2082 W32_RES_LINK="-Wl,emacs.res"
2084 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2085 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
2086 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
2087 W32_RES_LINK="\$(EMACSRES)"
2088 CLIENTRES="emacsclient.res"
2089 CLIENTW="emacsclientw\$(EXEEXT)"
2090 FIRSTFILE_OBJ=firstfile.o
2093 LIBS_ECLIENT="-lcomctl32"
2094 LIB_WSOCK32="-lwsock32"
2095 NTLIB="ntlib.$ac_objext"
2096 XARGS_LIMIT="-s 10000"
2102 AC_SUBST(EMACS_MANIFEST)
2105 AC_SUBST(W32_RES_LINK)
2106 AC_SUBST(FIRSTFILE_OBJ)
2109 AC_SUBST(LIBS_ECLIENT)
2110 AC_SUBST(LIB_WSOCK32)
2112 AC_SUBST(XARGS_LIMIT)
2114 if test "${HAVE_W32}" = "yes"; then
2119 ## $window_system is now set to the window system we will
2127 case "${window_system}" in
2132 case "${with_x_toolkit}" in
2133 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2134 motif ) USE_X_TOOLKIT=MOTIF ;;
2136 term_header=gtkutil.h
2137 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2138 dnl USE_X_TOOLKIT is set.
2139 USE_X_TOOLKIT=none ;;
2140 gtk2 ) with_gtk2=yes
2141 term_header=gtkutil.h
2142 USE_X_TOOLKIT=none ;;
2143 gtk3 ) with_gtk3=yes
2144 term_header=gtkutil.h
2145 USE_X_TOOLKIT=none ;;
2146 no ) USE_X_TOOLKIT=none ;;
2147 dnl If user did not say whether to use a toolkit, make this decision later:
2148 dnl use the toolkit if we have gtk, or X11R5 or newer.
2149 * ) USE_X_TOOLKIT=maybe ;;
2153 term_header=nsterm.h
2156 term_header=w32term.h
2160 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2161 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2162 if test "$HAVE_XSERVER" = true ||
2163 test -n "$DISPLAY" ||
2165 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2166 test "$emacs_libX11" != '/usr/lib/libX11.*'
2169 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2170 were found. You should install the relevant development files for X
2171 and for the toolkit you want, such as Gtk+ or Motif. Also make
2172 sure you have development files for image handling, i.e.
2173 tiff, gif, jpeg, png and xpm.
2174 If you are sure you want Emacs compiled without X window support, pass
2180 # Does the opsystem file prohibit the use of the GNU malloc?
2181 # Assume not, until told otherwise.
2185 [whether malloc is Doug Lea style],
2186 [emacs_cv_var_doug_lea_malloc],
2187 [emacs_cv_var_doug_lea_malloc=no
2188 dnl Hooks do not work with address sanitization.
2189 if test "$emacs_cv_sanitize_address" != yes; then
2192 [[#include <malloc.h>
2193 static void hook (void) {}]],
2194 [[malloc_set_state (malloc_get_state ());
2195 __after_morecore_hook = hook;
2196 __malloc_initialize_hook = hook;]])],
2197 [emacs_cv_var_doug_lea_malloc=yes])
2199 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2204 test "$CANNOT_DUMP" = yes ||
2206 ## darwin ld insists on the use of malloc routines in the System framework.
2207 darwin | mingw32 | nacl | sol2-10) ;;
2208 cygwin) hybrid_malloc=yes
2210 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2213 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2214 && test "${UNEXEC_OBJ}" = unexelf.o; then
2220 if test "${system_malloc}" = "yes"; then
2221 AC_DEFINE([SYSTEM_MALLOC], 1,
2222 [Define to 1 to use the system memory allocator, even if it is not
2226 (The GNU allocators don't work with this system configuration.)"
2228 elif test "$hybrid_malloc" = yes; then
2229 AC_DEFINE(HYBRID_MALLOC, 1,
2230 [Define to use gmalloc before dumping and the system malloc after.])
2233 GNU_MALLOC_reason=" (only before dumping)"
2234 GMALLOC_OBJ=gmalloc.o
2237 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2238 VMLIMIT_OBJ=vm-limit.o
2240 AC_CHECK_HEADERS([sys/vlimit.h])
2241 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2244 [[extern char data_start[]; char ch;]],
2245 [[return data_start < &ch;]])],
2246 [emacs_cv_data_start=yes],
2247 [emacs_cv_data_start=no])])
2248 if test $emacs_cv_data_start = yes; then
2249 AC_DEFINE([HAVE_DATA_START], 1,
2250 [Define to 1 if data_start is the address of the start
2251 of the main data segment.])
2254 AC_SUBST([HYBRID_MALLOC])
2255 AC_SUBST(GMALLOC_OBJ)
2256 AC_SUBST(VMLIMIT_OBJ)
2258 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2259 if test "$GNU_MALLOC" = yes ; then
2261 (Using Doug Lea's new malloc from the GNU C Library.)"
2263 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2264 [Define to 1 if the system memory allocator is Doug Lea style,
2265 with malloc hooks and malloc_set_state.])
2267 ## Use mmap directly for allocating larger buffers.
2268 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2269 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2270 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2272 mingw32|gnu*) REL_ALLOC=no ;;
2276 if test x"${REL_ALLOC}" = x; then
2277 REL_ALLOC=${GNU_MALLOC}
2280 use_mmap_for_buffers=no
2282 mingw32) use_mmap_for_buffers=yes ;;
2286 if test $use_mmap_for_buffers = yes; then
2287 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2291 LIBS="$LIBS_SYSTEM $LIBS"
2293 dnl FIXME replace main with a function we actually want from this library.
2294 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2296 dnl Check for the POSIX thread library.
2298 AC_CHECK_HEADERS_ONCE(pthread.h)
2299 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2300 AC_CACHE_CHECK([for pthread library],
2301 [emacs_cv_pthread_lib],
2302 [emacs_cv_pthread_lib=no
2304 for emacs_pthread_lib in 'none needed' -lpthread; do
2305 case $emacs_pthread_lib in
2306 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2310 [[#include <pthread.h>
2312 sigset_t old_mask, new_mask;
2313 void noop (void) {}]],
2314 [[pthread_t th = pthread_self ();
2316 status += pthread_create (&th, 0, 0, 0);
2317 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2318 status += pthread_kill (th, 0);
2319 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2320 || defined DOUG_LEA_MALLOC)
2321 /* Test for pthread_atfork only if gmalloc uses it,
2322 as older-style hosts like MirBSD 10 lack it. */
2323 status += pthread_atfork (noop, noop, noop);
2326 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2328 if test "$emacs_cv_pthread_lib" != no; then
2332 if test "$emacs_cv_pthread_lib" != no; then
2333 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2334 case $emacs_cv_pthread_lib in
2335 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2337 ac_cv_func_pthread_sigmask=yes
2338 # Some systems optimize for single-threaded programs by default, and
2339 # need special flags to disable these optimizations. For example, the
2340 # definition of 'errno' in <errno.h>.
2343 AC_DEFINE([_REENTRANT], 1,
2344 [Define to 1 if your system requires this in multithreaded code.]);;
2346 AC_DEFINE([_THREAD_SAFE], 1,
2347 [Define to 1 if your system requires this in multithreaded code.]);;
2351 AC_SUBST([LIB_PTHREAD])
2353 AC_MSG_CHECKING([for thread support])
2355 if test "$with_threads" = yes; then
2356 if test "$emacs_cv_pthread_lib" != no; then
2357 AC_DEFINE(THREADS_ENABLED, 1,
2358 [Define to 1 if you want elisp thread support.])
2360 elif test "${opsys}" = "mingw32"; then
2361 dnl MinGW can do native Windows threads even without pthreads
2362 AC_DEFINE(THREADS_ENABLED, 1,
2363 [Define to 1 if you want elisp thread support.])
2367 AC_MSG_RESULT([$threads_enabled])
2369 dnl Check for need for bigtoc support on IBM AIX
2373 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2375 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2376 *) gdb_cv_bigtoc=-bbigtoc ;;
2379 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2380 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2385 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2386 # is for the tests that follow. We set them back later on.
2388 REAL_CFLAGS="$CFLAGS"
2389 REAL_CPPFLAGS="$CPPFLAGS"
2392 if test "${HAVE_X11}" = "yes"; then
2393 DEFS="$C_SWITCH_X_SITE $DEFS"
2394 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2396 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2397 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2399 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2400 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2401 # but it's more convenient here to set LD_RUN_PATH since this
2402 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2403 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2404 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2408 if test "${opsys}" = "gnu-linux"; then
2409 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2410 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2411 [[XOpenDisplay ("foo");]])],
2412 [xgnu_linux_first_failure=no],
2413 [xgnu_linux_first_failure=yes])
2414 if test "${xgnu_linux_first_failure}" = "yes"; then
2415 OLD_CPPFLAGS="$CPPFLAGS"
2417 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2418 LIBS="$LIBS -b i486-linuxaout"
2419 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2420 [[XOpenDisplay ("foo");]])],
2421 [xgnu_linux_second_failure=no],
2422 [xgnu_linux_second_failure=yes])
2423 if test "${xgnu_linux_second_failure}" = "yes"; then
2424 # If we get the same failure with -b, there is no use adding -b.
2425 # So leave it out. This plays safe.
2428 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2429 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2432 CPPFLAGS=$OLD_CPPFLAGS
2439 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2440 # header files included from there.
2441 AC_MSG_CHECKING(for Xkb)
2442 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2443 #include <X11/XKBlib.h>]],
2444 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2445 emacs_xkb=yes, emacs_xkb=no)
2446 AC_MSG_RESULT($emacs_xkb)
2447 if test $emacs_xkb = yes; then
2448 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2451 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2452 XScreenNumberOfScreen)
2455 if test "${window_system}" = "x11"; then
2456 AC_MSG_CHECKING(X11 version 6)
2457 AC_CACHE_VAL(emacs_cv_x11_version_6,
2458 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2459 [[#if XlibSpecificationRelease < 6
2462 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2463 if test $emacs_cv_x11_version_6 = yes; then
2464 AC_MSG_RESULT(6 or newer)
2465 AC_DEFINE(HAVE_X11R6, 1,
2466 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2467 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2468 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2472 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2473 [Define if you have usable X11R6-style XIM support.])
2477 AC_MSG_RESULT(before 6)
2482 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2484 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2485 if test "${with_rsvg}" != "no"; then
2486 RSVG_REQUIRED=2.11.0
2487 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2489 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2490 AC_SUBST(RSVG_CFLAGS)
2493 if test $HAVE_RSVG = yes; then
2494 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2495 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2496 # Windows loads librsvg dynamically
2497 if test "${opsys}" = "mingw32"; then
2505 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2506 if test "${with_imagemagick}" != "no"; then
2507 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2508 ## 6.8.2 makes Emacs crash; see Bug#13867.
2509 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2510 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2512 if test $HAVE_IMAGEMAGICK = yes; then
2515 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2516 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2517 AC_CHECK_FUNCS([MagickRelinquishMemory MagickExportImagePixels \
2518 MagickMergeImageLayers MagickAutoOrientImage])
2521 # Check that ImageMagick links. It does not link on Fedora 25
2522 # with './configure CC=clang', as pkg-config outputs flags like
2523 # -lomp that work for GCC but not Clang.
2524 if test "$ac_cv_func_MagickRelinquishMemory" != yes; then
2528 if test $HAVE_IMAGEMAGICK = yes; then
2529 AC_DEFINE([HAVE_IMAGEMAGICK], 1, [Define to 1 if using ImageMagick.])
2534 AC_SUBST([IMAGEMAGICK_CFLAGS])
2535 AC_SUBST([IMAGEMAGICK_LIBS])
2539 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2540 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2541 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2542 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2543 GETADDRINFO_A_LIBS="-lanl"
2544 AC_SUBST(GETADDRINFO_A_LIBS)
2549 gtk_term_header=$term_header
2552 if test "${opsys}" != "mingw32"; then
2553 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2556 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2558 dnl Checks for libraries.
2559 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2560 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2561 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2562 AC_MSG_ERROR($GTK_PKG_ERRORS)
2564 if test "$pkg_check_gtk" = "yes"; then
2565 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2566 GTK_OBJ=emacsgtkfixed.o
2567 gtk_term_header=gtkutil.h
2568 USE_GTK_TOOLKIT="GTK3"
2569 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2570 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2571 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2572 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2573 [Define to 1 to disable Glib deprecation warnings.])
2577 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2581 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2584 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2586 dnl Checks for libraries.
2587 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2588 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2589 if test "$pkg_check_gtk" = "no" &&
2590 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2592 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2594 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2601 if test x"$pkg_check_gtk" = xyes; then
2604 CFLAGS="$CFLAGS $GTK_CFLAGS"
2605 LIBS="$GTK_LIBS $LIBS"
2606 dnl Try to compile a simple GTK program.
2607 AC_MSG_CHECKING([whether GTK compiles])
2611 [[/* Check the Gtk and Glib APIs. */
2612 #include <gtk/gtk.h>
2613 #include <glib-object.h>
2615 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2619 GtkSettings *gs = 0;
2620 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2621 strict C prohibits this. Use gtk_main_iteration to test that the
2622 libraries are there. */
2623 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2624 0, 0, 0, G_CALLBACK (callback), 0))
2625 gtk_main_iteration ();
2628 AC_MSG_RESULT([$GTK_COMPILES])
2629 if test "${GTK_COMPILES}" != "yes"; then
2631 if test "$USE_X_TOOLKIT" != "maybe"; then
2632 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2635 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2637 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2638 GTK_OBJ="gtkutil.o $GTK_OBJ"
2639 term_header=$gtk_term_header
2641 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2642 closing open displays. This is no problem if you just use
2643 one display, but if you use more than one and close one of them
2645 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2653 if test "${HAVE_GTK}" = "yes"; then
2655 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2656 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2657 if test "$with_toolkit_scroll_bars" != no; then
2658 with_toolkit_scroll_bars=yes
2661 dnl Check if we have the old file selection dialog declared and
2662 dnl in the link library. In 2.x it may be in the library,
2663 dnl but not declared if deprecated featured has been selected out.
2664 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2665 HAVE_GTK_FILE_SELECTION=no
2666 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2667 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2668 #include <gtk/gtk.h>])
2669 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2670 AC_CHECK_FUNCS(gtk_file_selection_new)
2673 dnl Same as above for gtk_handle_box.
2674 HAVE_GTK_HANDLE_BOX=no
2675 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2676 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2677 #include <gtk/gtk.h>])
2678 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2679 AC_CHECK_FUNCS(gtk_handle_box_new)
2682 dnl Same as above for gtk_tearoff_menu_item.
2683 HAVE_GTK_TEAROFF_MENU_ITEM=no
2684 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2685 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2686 #include <gtk/gtk.h>])
2687 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2688 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2691 dnl Check for functions introduced in 2.14 and later.
2692 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2693 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2694 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2695 gtk_orientable_set_orientation \
2696 gtk_window_set_has_resize_grip)
2698 term_header=gtkutil.h
2702 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2705 if test "$with_xwidgets" != "no"; then
2706 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2707 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2709 WEBKIT_REQUIRED=2.12
2710 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2711 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2712 HAVE_XWIDGETS=$HAVE_WEBKIT
2713 test $HAVE_XWIDGETS = yes ||
2714 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2716 XWIDGETS_OBJ=xwidget.o
2717 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2719 AC_SUBST(XWIDGETS_OBJ)
2724 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2725 dnl other platforms.
2728 if test "${with_dbus}" = "yes"; then
2729 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2730 if test "$HAVE_DBUS" = yes; then
2731 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2732 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2733 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2736 LIBS="$LIBS $DBUS_LIBS"
2737 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2738 dbus_type_is_valid \
2739 dbus_validate_bus_name \
2740 dbus_validate_path \
2741 dbus_validate_interface \
2742 dbus_validate_member)
2747 AC_SUBST(DBUS_CFLAGS)
2751 dnl GSettings has been tested under GNU/Linux only.
2753 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2754 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2755 if test "$HAVE_GSETTINGS" = "yes"; then
2757 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2759 LIBS="$LIBS $GSETTINGS_LIBS"
2760 AC_MSG_CHECKING([whether GSettings is in gio])
2763 [[/* Check that gsettings really is present. */
2764 #include <glib-object.h>
2765 #include <gio/gio.h>
2768 GSettings *settings;
2769 GVariant *val = g_settings_get_value (settings, "");
2771 [], HAVE_GSETTINGS=no)
2772 AC_MSG_RESULT([$HAVE_GSETTINGS])
2774 if test "$HAVE_GSETTINGS" = "yes"; then
2775 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2776 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2777 SETTINGS_LIBS="$GSETTINGS_LIBS"
2784 dnl GConf has been tested under GNU/Linux only.
2785 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2787 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2788 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2789 if test "$HAVE_GCONF" = yes; then
2790 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2791 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2792 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2793 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2797 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2798 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2799 if test "$HAVE_GOBJECT" = "yes"; then
2800 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2801 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2803 SAVE_CFLAGS="$CFLAGS"
2805 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2806 LIBS="$SETTINGS_LIBS $LIBS"
2807 CFLAGS="$SAVE_CFLAGS"
2810 AC_SUBST(SETTINGS_CFLAGS)
2811 AC_SUBST(SETTINGS_LIBS)
2814 dnl SELinux is available for GNU/Linux only.
2817 if test "${with_selinux}" = "yes"; then
2818 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2819 if test "$HAVE_LIBSELINUX" = yes; then
2820 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2821 LIBSELINUX_LIBS=-lselinux
2824 AC_SUBST(LIBSELINUX_LIBS)
2827 if test "${with_gnutls}" = "yes" ; then
2828 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2829 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2830 if test "${HAVE_GNUTLS}" = "yes"; then
2831 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2832 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2833 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2835 AC_CACHE_CHECK([for GnuTLS v3 with HMAC], [emacs_cv_gnutls3_hmac],
2838 #include <gnutls/gnutls.h>
2839 #include <gnutls/crypto.h>
2844 gnutls_hmac_hd_t handle;
2845 gnutls_hmac_deinit (handle, NULL);
2848 [emacs_cv_gnutls3_hmac=yes],
2849 [emacs_cv_gnutls3_hmac=no])])
2850 if test "$emacs_cv_gnutls3_hmac" = yes; then
2851 AC_DEFINE([HAVE_GNUTLS3_HMAC], [1],
2852 [Define if using GnuTLS v3 with HMAC support.])
2855 AC_CACHE_CHECK([for GnuTLS v3 with AEAD], [emacs_cv_gnutls3_aead],
2858 #include <gnutls/gnutls.h>
2859 #include <gnutls/crypto.h>
2864 gnutls_aead_cipher_hd_t handle;
2865 gnutls_aead_cipher_deinit (handle);
2868 [emacs_cv_gnutls3_aead=yes],
2869 [emacs_cv_gnutls3_aead=no])])
2870 if test "$emacs_cv_gnutls3_aead" = yes; then
2871 AC_DEFINE([HAVE_GNUTLS3_AEAD], [1],
2872 [Define if using GnuTLS v3 with AEAD support.])
2875 AC_CACHE_CHECK([for GnuTLS v3 with cipher], [emacs_cv_gnutls3_cipher],
2878 #include <gnutls/gnutls.h>
2879 #include <gnutls/crypto.h>
2884 gnutls_cipher_hd_t handle;
2885 gnutls_cipher_encrypt2 (handle, NULL, 0, NULL, 0);
2886 gnutls_cipher_deinit (handle);
2889 [emacs_cv_gnutls3_cipher=yes],
2890 [emacs_cv_gnutls3_cipher=no])])
2891 if test "$emacs_cv_gnutls3_cipher" = yes; then
2892 AC_DEFINE([HAVE_GNUTLS3_CIPHER], [1],
2893 [Define if using GnuTLS v3 with cipher support.])
2896 AC_CACHE_CHECK([for GnuTLS v3 with digest], [emacs_cv_gnutls3_digest],
2899 #include <gnutls/gnutls.h>
2900 #include <gnutls/crypto.h>
2905 gnutls_hash_hd_t handle;
2906 gnutls_hash_deinit (handle, NULL);
2909 [emacs_cv_gnutls3_digest=yes],
2910 [emacs_cv_gnutls3_digest=no])])
2911 if test "$emacs_cv_gnutls3_digest" = yes; then
2912 AC_DEFINE([HAVE_GNUTLS3_DIGEST], [1],
2913 [Define if using GnuTLS v3 with digest support.])
2917 # Windows loads GnuTLS dynamically
2918 if test "${opsys}" = "mingw32"; then
2923 AC_SUBST(LIBGNUTLS_LIBS)
2924 AC_SUBST(LIBGNUTLS_CFLAGS)
2927 if test "${with_libsystemd}" = "yes" ; then
2928 dnl This code has been tested with libsystemd 222 and later.
2929 dnl FIXME: Find the earliest version number for which Emacs should work,
2930 dnl and change '222' to that number.
2931 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2932 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2933 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2934 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2938 AC_SUBST(LIBSYSTEMD_LIBS)
2939 AC_SUBST(LIBSYSTEMD_CFLAGS)
2944 dnl MS Windows native file monitor is available for mingw32 only.
2945 case $with_file_notification,$opsys in
2947 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2948 this is only supported on MS-Windows native and MinGW32 builds.
2949 Consider using gfile instead.])
2951 w32,* | yes,mingw32)
2952 AC_CHECK_HEADER(windows.h)
2953 if test "$ac_cv_header_windows_h" = yes ; then
2954 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2955 NOTIFY_OBJ=w32notify.o
2956 NOTIFY_SUMMARY="yes (w32)"
2960 dnl inotify is available only on GNU/Linux.
2961 case $with_file_notification,$NOTIFY_OBJ in
2963 AC_CHECK_HEADER(sys/inotify.h)
2964 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2965 AC_CHECK_FUNC(inotify_init1)
2966 if test "$ac_cv_func_inotify_init1" = yes; then
2967 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2968 NOTIFY_OBJ=inotify.o
2969 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2974 dnl kqueue is available on BSD-like systems.
2975 case $with_file_notification,$NOTIFY_OBJ in
2977 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2978 if test "$HAVE_KQUEUE" = "yes"; then
2979 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2980 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2981 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2982 NOTIFY_LIBS=$KQUEUE_LIBS
2984 NOTIFY_SUMMARY="yes -lkqueue"
2986 AC_SEARCH_LIBS(kqueue, [])
2987 if test "$ac_cv_search_kqueue" != no; then
2988 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2990 NOTIFY_SUMMARY="yes (kqueue)"
2995 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2996 dnl has been added in glib 2.24. It has been tested under
2998 case $with_file_notification,$NOTIFY_OBJ in
3000 if test "${HAVE_NS}" = yes; then
3001 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
3002 Consider kqueue instead.])
3004 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
3005 if test "$HAVE_GFILENOTIFY" = "yes"; then
3006 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
3007 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
3008 NOTIFY_LIBS=$GFILENOTIFY_LIBS
3009 NOTIFY_OBJ=gfilenotify.o
3010 NOTIFY_SUMMARY="yes -lgio (gfile)"
3015 case $with_file_notification,$NOTIFY_OBJ in
3016 yes,* | no,* | *,?*) ;;
3017 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
3020 if test -n "$NOTIFY_OBJ"; then
3021 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
3023 AC_SUBST(NOTIFY_CFLAGS)
3024 AC_SUBST(NOTIFY_LIBS)
3025 AC_SUBST(NOTIFY_OBJ)
3027 dnl Do not put whitespace before the #include statements below.
3028 dnl Older compilers (eg sunos4 cc) choke on it.
3031 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
3032 if test "$with_xaw3d" != no; then
3033 AC_CACHE_VAL(emacs_cv_xaw3d,
3034 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
3035 #include <X11/Intrinsic.h>
3036 #include <X11/Xaw3d/Simple.h>]],
3038 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
3039 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
3040 emacs_cv_xaw3d=no)])
3044 if test $emacs_cv_xaw3d = yes; then
3045 AC_MSG_CHECKING(for xaw3d)
3046 AC_MSG_RESULT([yes; using Lucid toolkit])
3050 AC_DEFINE(HAVE_XAW3D, 1,
3051 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
3053 AC_MSG_CHECKING(for xaw3d)
3055 AC_MSG_CHECKING(for libXaw)
3056 AC_CACHE_VAL(emacs_cv_xaw,
3057 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
3058 #include <X11/Intrinsic.h>
3059 #include <X11/Xaw/Simple.h>]],
3063 if test $emacs_cv_xaw = yes; then
3064 AC_MSG_RESULT([yes; using Lucid toolkit])
3067 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
3068 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
3070 AC_MSG_ERROR([No X toolkit could be found.
3071 If you are sure you want Emacs compiled without an X toolkit, pass
3073 to configure. Otherwise, install the development libraries for the toolkit
3074 that you want to use (e.g. Gtk+) and re-run configure.])
3079 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
3083 if test "${USE_X_TOOLKIT}" != "none"; then
3084 AC_MSG_CHECKING(X11 toolkit version)
3085 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
3086 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
3087 [[#if XtSpecificationRelease < 6
3090 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
3091 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
3092 if test $emacs_cv_x11_toolkit_version_6 = yes; then
3093 AC_MSG_RESULT(6 or newer)
3094 AC_DEFINE(HAVE_X11XTR6, 1,
3095 [Define to 1 if you have the X11R6 or newer version of Xt.])
3096 LIBXTR6="-lSM -lICE"
3098 ## Use libw.a along with X11R6 Xt.
3099 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
3102 AC_MSG_RESULT(before 6)
3105 dnl If using toolkit, check whether libXmu.a exists.
3106 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
3108 if test x$HAVE_X11XTR6 = xyes; then
3109 OTHERLIBS='-lXt -lSM -lICE'
3113 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
3114 if test "X$LIBS" != "X$OLDLIBS"; then
3115 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
3118 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3124 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3125 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3126 if test -d /usr/include/openmotif; then
3127 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3128 emacs_cv_openmotif=yes
3129 case "$canonical" in
3130 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3131 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3134 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3137 emacs_cv_openmotif=no
3139 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3140 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3141 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3144 Motif version prior to 2.1.
3146 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3147 if test $emacs_cv_motif_version_2_1 = yes; then
3148 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3149 if test x$emacs_cv_openmotif = xyes; then
3150 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3153 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3154 # We put this in CFLAGS temporarily to precede other -I options
3155 # that might be in CFLAGS temporarily.
3156 # We put this in CPPFLAGS where it precedes the other -I options.
3157 OLD_CPPFLAGS=$CPPFLAGS
3159 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3160 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3161 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3163 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3164 if test $emacs_cv_lesstif = yes; then
3165 # Make sure this -I option remains in CPPFLAGS after it is set
3166 # back to REAL_CPPFLAGS.
3167 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3168 # have those other -I options anyway. Ultimately, having this
3169 # directory ultimately in CPPFLAGS will be enough.
3170 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3171 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3174 CPPFLAGS=$OLD_CPPFLAGS
3177 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3178 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3181 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3182 dnl using Motif or Xaw3d is available, and unless
3183 dnl --with-toolkit-scroll-bars=no was specified.
3185 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3186 [Define to 1 if we should use toolkit scroll bars.])dnl
3187 USE_TOOLKIT_SCROLL_BARS=no
3188 if test "${with_toolkit_scroll_bars}" != "no"; then
3189 if test "${USE_X_TOOLKIT}" != "none"; then
3190 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3191 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3193 USE_TOOLKIT_SCROLL_BARS=yes
3194 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3195 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3196 USE_TOOLKIT_SCROLL_BARS=yes
3198 elif test "${HAVE_GTK}" = "yes"; then
3199 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3200 USE_TOOLKIT_SCROLL_BARS=yes
3201 elif test "${HAVE_NS}" = "yes"; then
3202 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3203 USE_TOOLKIT_SCROLL_BARS=yes
3204 elif test "${HAVE_W32}" = "yes"; then
3205 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3206 USE_TOOLKIT_SCROLL_BARS=yes
3210 dnl See if XIM is available.
3211 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3212 #include <X11/Xlib.h>
3213 #include <X11/Xresource.h>]],
3214 [[XIMProc callback;]])],
3216 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3219 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3221 if test "${with_xim}" != "no"; then
3222 AC_DEFINE(USE_XIM, 1,
3223 [Define to 1 if we should use XIM, if it is available.])
3227 if test "${HAVE_XIM}" != "no"; then
3229 if test "$GCC" = yes; then
3230 CFLAGS="$CFLAGS --pedantic-errors"
3232 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3233 #include <X11/Xlib.h>
3234 #include <X11/Xresource.h>]],
3240 XPointer *client_data;
3242 /* If we're not using GCC, it's probably not XFree86, and this is
3243 probably right, but we can't use something like --pedantic-errors. */
3244 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3245 char*, XIMProc, XPointer*);
3247 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3249 [emacs_cv_arg6_star=yes])
3250 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3251 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3252 either XPointer or XPointer*.])dnl
3253 if test "$emacs_cv_arg6_star" = yes; then
3254 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3256 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3261 ### Start of font-backend (under any platform) section.
3262 # (nothing here yet -- this is a placeholder)
3263 ### End of font-backend (under any platform) section.
3265 ### Start of font-backend (under X11) section.
3266 if test "${HAVE_X11}" = "yes"; then
3267 ## Use -lXft if available, unless '--with-xft=no'.
3269 if test "x${with_x}" = "xno"; then
3273 if test "$with_xft" != no; then
3274 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3275 with_xft=$HAVE_FONTCONFIG
3278 if test "x${with_xft}" != "xno"; then
3280 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3281 ## Because xftfont.c uses XRenderQueryExtension, we also
3282 ## need to link to -lXrender.
3284 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3285 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3286 OLD_CPPFLAGS="$CPPFLAGS"
3287 OLD_CFLAGS="$CFLAGS"
3289 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3290 CFLAGS="$CFLAGS $XFT_CFLAGS"
3291 XFT_LIBS="-lXrender $XFT_LIBS"
3292 LIBS="$XFT_LIBS $LIBS"
3293 AC_CHECK_HEADER(X11/Xft/Xft.h,
3294 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3295 [[#include <X11/X.h>]])
3297 if test "${HAVE_XFT}" = "yes"; then
3298 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3300 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3301 fi # "${HAVE_XFT}" = "yes"
3302 CPPFLAGS=$OLD_CPPFLAGS
3305 fi # "$HAVE_XFT" != no
3306 fi # "x${with_xft}" != "xno"
3308 ## We used to allow building with FreeType and without Xft.
3309 ## However, the ftx font backend driver is not in good shape.
3310 if test "$HAVE_XFT" != "yes"; then
3311 dnl For the "Does Emacs use" message at the end.
3315 dnl Strict linkers fail with
3316 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3317 dnl if -lfreetype is not specified.
3318 dnl The following is needed to set FREETYPE_LIBS.
3319 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3321 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3325 if test "${HAVE_FREETYPE}" = "yes"; then
3326 AC_DEFINE(HAVE_FREETYPE, 1,
3327 [Define to 1 if using the freetype and fontconfig libraries.])
3328 if test "${with_libotf}" != "no"; then
3329 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3330 if test "$HAVE_LIBOTF" = "yes"; then
3331 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3332 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3333 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3334 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3335 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3336 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3337 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3341 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3342 dnl Does the new font backend require it, or can it work without it?
3346 if test "${HAVE_LIBOTF}" = yes; then
3347 if test "${with_m17n_flt}" != "no"; then
3348 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3349 if test "$HAVE_M17N_FLT" = "yes"; then
3350 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3361 ### End of font-backend (under X11) section.
3363 AC_SUBST(FREETYPE_CFLAGS)
3364 AC_SUBST(FREETYPE_LIBS)
3365 AC_SUBST(FONTCONFIG_CFLAGS)
3366 AC_SUBST(FONTCONFIG_LIBS)
3367 AC_SUBST(LIBOTF_CFLAGS)
3368 AC_SUBST(LIBOTF_LIBS)
3369 AC_SUBST(M17N_FLT_CFLAGS)
3370 AC_SUBST(M17N_FLT_LIBS)
3373 if test "${HAVE_X11}" = "yes"; then
3374 if test "${with_cairo}" != "no"; then
3375 CAIRO_REQUIRED=1.12.0
3376 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3377 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3378 if test $HAVE_CAIRO = yes; then
3379 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3381 AC_MSG_ERROR([cairo requested but not found.])
3384 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3385 LIBS="$LIBS $CAIRO_LIBS"
3386 AC_SUBST(CAIRO_CFLAGS)
3387 AC_SUBST(CAIRO_LIBS)
3391 if test "${HAVE_X11}" = "yes"; then
3392 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3393 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3394 if test "${HAVE_XCB}" = "yes"; then
3395 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3396 if test "${HAVE_X11_XCB}" = "yes"; then
3397 AC_DEFINE(USE_XCB, 1,
3398 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3399 X11/XCB programming.])
3400 XCB_LIBS="-lX11-xcb -lxcb"
3406 ### Use -lXpm if available, unless '--with-xpm=no'.
3407 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3408 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3409 ### we need to set LDFLAGS accordingly.
3412 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3413 if test "${with_xpm}" != "no"; then
3414 SAVE_LDFLAGS="$LDFLAGS"
3415 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3416 AC_CHECK_HEADER(noX/xpm.h,
3417 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3418 if test "${HAVE_XPM}" = "yes"; then
3419 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3420 AC_EGREP_CPP(no_return_alloc_pixels,
3421 [#include "noX/xpm.h"
3422 #ifndef XpmReturnAllocPixels
3423 no_return_alloc_pixels
3425 ], HAVE_XPM=no, HAVE_XPM=yes)
3427 if test "${HAVE_XPM}" = "yes"; then
3431 LDFLAGS="$SAVE_LDFLAGS"
3436 if test "${HAVE_XPM}" = "yes"; then
3437 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3442 if test "${HAVE_X11}" = "yes"; then
3443 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3444 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3446 if test "${with_xpm}" != "no"; then
3447 AC_CHECK_HEADER(X11/xpm.h,
3448 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3449 if test "${HAVE_XPM}" = "yes"; then
3450 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3451 AC_EGREP_CPP(no_return_alloc_pixels,
3452 [#include "X11/xpm.h"
3453 #ifndef XpmReturnAllocPixels
3454 no_return_alloc_pixels
3456 ], HAVE_XPM=no, HAVE_XPM=yes)
3458 if test "${HAVE_XPM}" = "yes"; then
3466 if test "${HAVE_XPM}" = "yes"; then
3467 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3469 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3470 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3475 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3476 ### slightly different requirements wrt image libraries (it doesn't
3477 ### use -lXpm because it loads the xpm shared library dynamically at
3479 if test "${opsys}" = "mingw32"; then
3480 if test "${with_xpm}" != "no"; then
3481 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3485 if test "${HAVE_XPM}" = "yes"; then
3486 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3492 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3495 if test "${with_jpeg}" != "no"; then
3496 AC_CACHE_CHECK([for jpeglib 6b or later],
3499 for emacs_cv_jpeglib in yes -ljpeg no; do
3500 case $emacs_cv_jpeglib in
3503 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3507 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3508 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3509 #include <jpeglib.h>
3511 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3512 struct jpeg_decompress_struct cinfo;
3515 jpeg_create_decompress (&cinfo);
3516 WARNMS (&cinfo, JWRN_JPEG_EOF);
3517 jpeg_destroy_decompress (&cinfo);
3519 [emacs_link_ok=yes],
3522 test $emacs_link_ok = yes && break
3524 if test "$emacs_cv_jpeglib" != no; then
3526 AC_DEFINE([HAVE_JPEG], 1,
3527 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3528 ### mingw32 doesn't use -ljpeg, since it loads the library
3529 ### dynamically when needed, and doesn't want a run-time
3530 ### dependency on the jpeglib DLL.
3531 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3532 && LIBJPEG=$emacs_cv_jpeglib
3539 if test "${with_zlib}" != "no"; then
3541 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3543 case $ac_cv_search_inflateEnd in
3544 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3547 if test "${HAVE_ZLIB}" = "yes"; then
3548 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3549 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3550 if test "${opsys}" = "mingw32"; then
3556 ### Dynamic modules support
3561 if test "${with_modules}" != "no"; then
3565 MODULES_SUFFIX=".so"
3569 MODULES_SUFFIX=".dll"
3573 MODULES_SUFFIX=".so"
3577 # BSD systems have dlopen in libc.
3578 AC_CHECK_FUNC([dlopen],
3579 [MODULES_SUFFIX=".so"
3584 if test "${HAVE_MODULES}" = no; then
3585 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3588 LIBS="$LIBS $LIBMODULES"
3589 AC_CHECK_FUNCS([dladdr dlfunc])
3594 if test "${HAVE_MODULES}" = yes; then
3595 MODULES_OBJ="dynlib.o emacs-module.o"
3596 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3597 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3598 [System extension for dynamic libraries])
3600 AC_SUBST(MODULES_OBJ)
3601 AC_SUBST(LIBMODULES)
3602 AC_SUBST(HAVE_MODULES)
3603 AC_SUBST(MODULES_SUFFIX)
3605 AC_CONFIG_FILES([src/emacs-module.h])
3606 AC_SUBST_FILE([module_env_snippet_25])
3607 AC_SUBST_FILE([module_env_snippet_26])
3608 module_env_snippet_25="$srcdir/src/module-env-25.h"
3609 module_env_snippet_26="$srcdir/src/module-env-26.h"
3611 ### Use -lpng if available, unless '--with-png=no'.
3615 if test "${NS_IMPL_COCOA}" = yes; then
3617 elif test "${with_png}" != no; then
3618 # mingw32 loads the library dynamically.
3619 if test "$opsys" = mingw32; then
3620 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3621 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3622 AC_MSG_CHECKING([for png])
3623 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3624 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3625 # libpng-config does not work; configure by hand.
3626 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3627 # in /usr/include/libpng.
3628 if test -r /usr/include/libpng/png.h &&
3629 test ! -r /usr/include/png.h; then
3630 png_cflags=-I/usr/include/libpng
3638 CFLAGS="$CFLAGS $png_cflags"
3639 LIBS="$png_ldflags -lz -lm $LIBS"
3641 [AC_LANG_PROGRAM([[#include <png.h>]],
3642 [[return !png_get_channels (0, 0);]])],
3644 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3646 # $LIBPNG requires explicit -lz in some cases.
3647 # We don't know what those cases are, exactly, so play it safe and
3648 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3649 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3650 LIBPNG="$LIBPNG -lz"
3654 AC_MSG_RESULT([$HAVE_PNG])
3657 if test $HAVE_PNG = yes; then
3658 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3661 CFLAGS="$CFLAGS $PNG_CFLAGS"
3662 AC_CHECK_DECL([png_longjmp],
3664 [AC_DEFINE([PNG_DEPSTRUCT], [],
3665 [Define to empty to suppress deprecation warnings when building
3666 with --enable-gcc-warnings and with libpng versions before 1.5,
3667 which lack png_longjmp.])],
3673 AC_SUBST(PNG_CFLAGS)
3675 ### Use -ltiff if available, unless '--with-tiff=no'.
3676 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3679 if test "${opsys}" = "mingw32"; then
3680 if test "${with_tiff}" != "no"; then
3681 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3683 if test "${HAVE_TIFF}" = "yes"; then
3684 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3686 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3687 if test "${with_tiff}" != "no"; then
3688 AC_CHECK_HEADER(tiffio.h,
3690 # At least one tiff package requires the jpeg library.
3691 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3692 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3695 if test "${HAVE_TIFF}" = "yes"; then
3696 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3697 dnl FIXME -lz -lm, as per libpng?
3703 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3704 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3707 if test "${opsys}" = "mingw32"; then
3708 if test "${with_gif}" != "no"; then
3709 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3711 if test "${HAVE_GIF}" = "yes"; then
3712 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3714 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3715 || test "${HAVE_W32}" = "yes"; then
3716 AC_CHECK_HEADER(gif_lib.h,
3717 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3718 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3719 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3720 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3722 if test "$HAVE_GIF" = yes; then
3724 elif test "$HAVE_GIF" = maybe; then
3725 # If gif_lib.h but no libgif, try libungif.
3726 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3727 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3730 if test "${HAVE_GIF}" = "yes"; then
3731 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3736 dnl Check for required libraries.
3739 if test "${HAVE_X11}" = "yes"; then
3740 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3741 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3742 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3743 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3744 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3745 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3746 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3747 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3748 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3749 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3751 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3752 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3753 if test "X${MISSING}" != X; then
3754 AC_MSG_ERROR([The following required libraries were not found:
3756 Maybe some development libraries/packages are missing?
3757 If you don't want to link with them give
3759 as options to configure])
3762 ### Use -lgpm if available, unless '--with-gpm=no'.
3765 if test "${with_gpm}" != "no"; then
3766 AC_CHECK_HEADER(gpm.h,
3767 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3769 if test "${HAVE_GPM}" = "yes"; then
3770 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3776 dnl Check for malloc/malloc.h on darwin
3777 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3780 ### Use NeXTstep API to implement GUI.
3781 if test "${HAVE_NS}" = "yes"; then
3782 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3783 if test "${NS_IMPL_COCOA}" = "yes"; then
3784 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3786 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3787 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3788 if test $NS_GNUSTEP_CONFIG != yes; then
3789 # See also .m.o rule in src/Makefile.in. */
3790 # FIXME: are all these flags really needed? Document here why. */
3791 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3792 ## Extra CFLAGS applied to src/*.m files.
3793 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3799 ### Use session management (-lSM -lICE) if available
3802 if test "${HAVE_X11}" = "yes"; then
3803 AC_CHECK_HEADER(X11/SM/SMlib.h,
3804 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3806 if test "${HAVE_X_SM}" = "yes"; then
3807 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3813 ### Use XRandr (-lXrandr) if available
3815 if test "${HAVE_X11}" = "yes"; then
3816 XRANDR_REQUIRED=1.2.2
3817 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3818 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3819 if test $HAVE_XRANDR = no; then
3820 # Test old way in case pkg-config doesn't have it (older machines).
3821 # Include Xrender.h by hand to work around bug in older Xrandr.h
3822 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3823 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3824 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3825 [], [AC_INCLUDES_DEFAULT
3826 #include <X11/extensions/Xrender.h>])
3827 if test $HAVE_XRANDR = yes; then
3828 XRANDR_LIBS=-lXrandr
3831 if test $HAVE_XRANDR = yes; then
3832 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3835 AC_SUBST(XRANDR_CFLAGS)
3836 AC_SUBST(XRANDR_LIBS)
3838 ### Use Xinerama (-lXinerama) if available
3840 if test "${HAVE_X11}" = "yes"; then
3841 XINERAMA_REQUIRED=1.0.2
3842 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3843 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3844 if test $HAVE_XINERAMA = no; then
3845 # Test old way in case pkg-config doesn't have it (older machines).
3846 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3847 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3848 if test $HAVE_XINERAMA = yes; then
3849 XINERAMA_LIBS=-lXinerama
3852 if test $HAVE_XINERAMA = yes; then
3853 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3856 AC_SUBST(XINERAMA_CFLAGS)
3857 AC_SUBST(XINERAMA_LIBS)
3859 ### Use Xfixes (-lXfixes) if available
3861 if test "${HAVE_X11}" = "yes"; then
3862 XFIXES_REQUIRED=4.0.0
3863 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3864 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3865 if test $HAVE_XFIXES = no; then
3866 # Test old way in case pkg-config doesn't have it (older machines).
3867 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3868 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3869 if test $HAVE_XFIXES = yes; then
3870 XFIXES_LIBS=-lXfixes
3873 if test $HAVE_XFIXES = yes; then
3874 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3877 AC_SUBST(XFIXES_CFLAGS)
3878 AC_SUBST(XFIXES_LIBS)
3880 ### Use Xdbe (-lXdbe) if available
3882 if test "${HAVE_X11}" = "yes"; then
3883 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3884 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3886 [#include <X11/Xlib.h>
3888 if test $HAVE_XDBE = yes; then
3891 if test $HAVE_XDBE = yes; then
3892 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3895 AC_SUBST(XDBE_CFLAGS)
3898 ### Use libxml (-lxml2) if available
3899 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3901 if test "${with_xml2}" != "no"; then
3902 ### I'm not sure what the version number should be, so I just guessed.
3903 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3904 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3905 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3906 SAVE_CPPFLAGS="$CPPFLAGS"
3907 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3908 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3909 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3911 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3915 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3916 AC_CHECK_HEADER(libxml/HTMLparser.h,
3917 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3918 [#include <libxml/HTMLparser.h>])])
3919 CPPFLAGS="$SAVE_CPPFLAGS"
3920 if test "${HAVE_LIBXML2}" = "yes"; then
3921 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3922 LIBXML2_LIBS="-lxml2"
3925 if test "${HAVE_LIBXML2}" = "yes"; then
3926 if test "${opsys}" != "mingw32"; then
3927 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3932 if test "${HAVE_LIBXML2}" = "yes"; then
3933 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3940 AC_SUBST(LIBXML2_LIBS)
3941 AC_SUBST(LIBXML2_CFLAGS)
3945 if test ! "$with_mailutils"; then
3946 # Check for mail-locking functions in a "mail" library. Probably this should
3947 # have the same check as for liblockfile below.
3948 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3949 if test $have_mail = yes; then
3951 AC_DEFINE([HAVE_LIBMAIL], [1],
3952 [Define to 1 if you have the 'mail' library (-lmail).])
3955 LIBS="$LIBS_MAIL $LIBS"
3956 AC_CHECK_FUNCS([touchlock])
3959 dnl Debian, at least:
3960 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3961 if test $have_lockfile = yes; then
3962 LIBS_MAIL=-llockfile
3963 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3964 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3966 # If we have the shared liblockfile, assume we must use it for mail
3967 # locking (e.g. Debian). If we couldn't link against liblockfile
3968 # (no liblockfile.a installed), ensure that we don't need to.
3969 dnl This works for files generally, not just executables.
3970 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3971 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3972 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3973 if test "$ac_cv_prog_liblockfile" = yes; then
3974 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3975 This probably means that movemail could lose mail.
3976 There may be a 'development' package to install containing liblockfile.])
3979 AC_CHECK_HEADERS([maillock.h])
3981 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3982 ## interlock access to the mail spool. The alternative is a lock file named
3983 ## /usr/spool/mail/$USER.lock.
3986 aix4-2) mail_lock="lockf" ;;
3988 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3990 ## On GNU/Linux systems, both methods are used by various mail programs.
3991 ## I assume most people are using newer mailers that have heard of flock.
3992 ## Change this if you need to.
3993 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3994 ## configure gets the right answers, and that means *NOT* using flock.
3995 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3996 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3997 ## Debian maintainer hasn't provided a clean fix for Emacs.
3998 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3999 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
4000 ## correct logic. -- fx
4001 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
4002 ## liblockfile is a Free Software replacement for libmail, used on
4003 ## Debian systems and elsewhere. -rfr.
4006 if test $have_mail = yes || test $have_lockfile = yes; then
4007 test $ac_cv_header_maillock_h = yes && mail_lock=no
4011 mail_lock="none-needed" ;;
4015 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
4016 [Define if the mailer uses flock to interlock the mail spool.]);;
4018 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
4019 [Define if the mailer uses lockf to interlock the mail spool.]);;
4023 *) BLESSMAIL_TARGET="need-blessmail" ;;
4026 AC_SUBST([BLESSMAIL_TARGET])
4027 AC_SUBST([LIBS_MAIL])
4030 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
4031 AC_CHECK_FUNCS(accept4 fchdir gethostname \
4032 getrusage get_current_dir_name \
4033 lrand48 random rint trunc \
4034 select getpagesize setlocale newlocale \
4035 getrlimit setrlimit shutdown \
4036 pthread_sigmask strsignal setitimer \
4037 sendto recvfrom getsockname getifaddrs freeifaddrs \
4039 getpwent endpwent getgrent endgrent \
4040 cfmakeraw cfsetspeed __executable_start log2 prctl)
4043 dnl No need to check for posix_memalign if aligned_alloc works.
4044 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
4045 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
4047 dnl Cannot use AC_CHECK_FUNCS
4048 AC_CACHE_CHECK([for __builtin_unwind_init],
4049 emacs_cv_func___builtin_unwind_init,
4050 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
4051 emacs_cv_func___builtin_unwind_init=yes,
4052 emacs_cv_func___builtin_unwind_init=no)])
4053 if test $emacs_cv_func___builtin_unwind_init = yes; then
4054 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
4055 [Define to 1 if you have the '__builtin_unwind_init' function.])
4058 AC_CHECK_HEADERS_ONCE(sys/un.h)
4063 AC_CHECK_FUNCS(grantpt)
4065 # PTY-related GNU extensions.
4066 AC_CHECK_FUNCS(getpt posix_openpt)
4068 # Check this now, so that we will NOT find the above functions in ncurses.
4069 # That is because we have not set up to link ncurses in lib-src.
4070 # It's better to believe a function is not available
4071 # than to expect to find it in ncurses.
4072 # Also we need tputs and friends to be able to build at all.
4073 AC_MSG_CHECKING([for library containing tputs])
4074 # Run a test program that contains a call to tputs, a call that is
4075 # never executed. This tests whether a pre-'main' dynamic linker
4076 # works with the library. It's too much trouble to actually call
4077 # tputs in the test program, due to portability hassles. When
4078 # cross-compiling, assume the test program will run if it links.
4079 AC_DEFUN([tputs_link_source], [
4081 [[extern void tputs (const char *, int, int (*)(int));
4082 int main (int argc, char **argv)
4085 tputs (argv[0], 0, 0);
4089 if test "${opsys}" = "mingw32"; then
4092 # Maybe curses should be tried earlier?
4093 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
4094 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
4096 if test -z "$tputs_library"; then
4100 LIBS_TERMCAP=-l$tputs_library
4102 LIBS="$LIBS_TERMCAP $LIBS"
4104 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
4105 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
4107 if test "X$msg" != Xno; then
4112 AC_MSG_RESULT([$msg])
4113 if test "X$msg" = Xno; then
4114 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
4115 The following libraries were tried (in order):
4116 libtinfo, libncurses, libterminfo, libtermcap, libcurses
4117 Please try installing whichever of these libraries is most appropriate
4118 for your system, together with its header files.
4119 For example, a libncurses-dev(el) or similar package.])
4122 ## Use termcap instead of terminfo?
4123 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
4125 ## FIXME? In the cases below where we unconditionally set
4126 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4127 ## if that was found above to have tputs.
4128 ## Should we use the gnu* logic everywhere?
4130 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4131 ## The ncurses library has been moved out of the System framework in
4132 ## Mac OS X 10.2. So if configure detects it, set the command-line
4133 ## option to use it.
4134 darwin) LIBS_TERMCAP="-lncurses" ;;
4136 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4139 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4140 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4141 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4142 [[#if __FreeBSD_version < 400000
4145 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4147 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4149 if test $emacs_cv_freebsd_terminfo = yes; then
4150 LIBS_TERMCAP="-lncurses"
4153 LIBS_TERMCAP="-ltermcap"
4163 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4165 LIBS_TERMCAP="-ltermcap"
4169 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4171 ## hpux: Make sure we get select from libc rather than from libcurses
4172 ## because libcurses on HPUX 10.10 has a broken version of select.
4173 ## We used to use -lc -lcurses, but this may be cleaner.
4174 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4175 # set that way, now it uses the default). Isn't this a contradiction?
4176 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4180 TERMCAP_OBJ=tparam.o
4181 if test $TERMINFO = yes; then
4182 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4183 TERMCAP_OBJ=terminfo.o
4185 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4186 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4188 AC_SUBST(LIBS_TERMCAP)
4189 AC_SUBST(TERMCAP_OBJ)
4191 # GNU/Linux-specific timer functions.
4192 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4194 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4196 [[timerfd_create (CLOCK_REALTIME,
4197 TFD_CLOEXEC | TFD_NONBLOCK);
4198 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4199 [emacs_cv_have_timerfd=yes],
4200 [emacs_cv_have_timerfd=no])])
4201 if test "$emacs_cv_have_timerfd" = yes; then
4202 AC_DEFINE([HAVE_TIMERFD], 1,
4203 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4206 # Alternate stack for signal handlers.
4207 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4208 [emacs_cv_alternate_stack],
4210 [AC_LANG_PROGRAM([[#include <signal.h>
4213 struct sigaction sa;
4214 ss.ss_sp = malloc (SIGSTKSZ);
4215 ss.ss_size = SIGSTKSZ;
4216 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4217 sigaltstack (&ss, 0);
4218 sigaction (SIGSEGV, &sa, 0);]])],
4219 [emacs_cv_alternate_stack=yes],
4220 [emacs_cv_alternate_stack=no])])
4222 # Do we need the Hesiod library to provide the support routines?
4223 dnl FIXME? Should we be skipping this on Darwin too?
4226 if test "$with_hesiod" != no ; then
4227 # Don't set $LIBS here -- see comments above. FIXME which comments?
4229 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4230 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4231 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4232 if test "$resolv" = yes ; then
4238 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4239 hesiod=yes, :, $RESOLVLIB)])
4241 if test x"$hesiod" = xyes; then
4243 LIBRESOLV=$RESOLVLIB
4249 # These tell us which Kerberos-related libraries to use.
4256 if test "${with_kerberos}" != no; then
4258 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4259 if test $have_com_err = yes; then
4260 COM_ERRLIB=-lcom_err
4261 LIBS="$COM_ERRLIB $LIBS"
4263 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4264 if test $have_crypto = yes; then
4266 LIBS="$CRYPTOLIB $LIBS"
4268 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4269 if test $have_k5crypto = yes; then
4270 CRYPTOLIB=-lk5crypto
4271 LIBS="$CRYPTOLIB $LIBS"
4273 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4274 if test $have_krb5=yes; then
4276 LIBS="$KRB5LIB $LIBS"
4278 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4279 if test "${with_kerberos5}" = no; then
4280 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4281 if test $have_des425 = yes; then
4283 LIBS="$DESLIB $LIBS"
4285 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4286 if test $have_des = yes; then
4288 LIBS="$DESLIB $LIBS"
4291 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4292 if test $have_krb4 = yes; then
4294 LIBS="$KRB4LIB $LIBS"
4296 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4297 if test $have_krb = yes; then
4299 LIBS="$KRB4LIB $LIBS"
4304 if test "${with_kerberos5}" != no; then
4305 AC_CHECK_HEADERS(krb5.h,
4306 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4307 [#include <krb5.h>])])
4309 AC_CHECK_HEADERS(krb.h,,
4310 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4311 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4313 AC_CHECK_HEADERS(com_err.h)
4317 AC_SUBST(COM_ERRLIB)
4323 AC_CHECK_HEADERS(valgrind/valgrind.h)
4325 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4327 AC_CHECK_FUNCS_ONCE([sbrk])
4330 AC_CHECK_FUNC(socket, , ok_so_far=no)
4331 if test $ok_so_far = yes; then
4332 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4334 if test $ok_so_far = yes; then
4335 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4337 if test $ok_so_far = yes; then
4338 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4339 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4340 [Define to 1 if you have inet sockets.])
4345 AC_CHECK_FUNCS(snprintf)
4347 dnl Check for glib. This differs from other library checks in that
4348 dnl Emacs need not link to glib unless some other library is already
4349 dnl linking to glib. Although glib provides no facilities that Emacs
4350 dnl needs for its own purposes, when glib is present Emacs needs to
4351 dnl use primitives like g_main_context_query to avoid clashing with
4352 dnl glib at a low level.
4354 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4358 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4359 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4360 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4361 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4362 AC_MSG_CHECKING([whether GLib is linked in])
4363 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4366 [[g_print ("Hello world");]])],
4369 AC_MSG_RESULT([$links_glib])
4370 if test "${links_glib}" = "yes"; then
4371 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4372 if test "$HAVE_NS" = no;then
4380 dnl Adapted from Haible's version.
4381 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4382 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4383 [[char* cs = nl_langinfo(CODESET);]])],
4384 emacs_cv_langinfo_codeset=yes,
4385 emacs_cv_langinfo_codeset=no)
4387 if test $emacs_cv_langinfo_codeset = yes; then
4388 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4389 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4394 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4395 dnl how the tty code is related to POSIX and/or other versions of termios.
4396 dnl The following looks like a useful start.
4398 dnl AC_SYS_POSIX_TERMIOS
4399 dnl if test $ac_cv_sys_posix_termios = yes; then
4400 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4401 dnl and macros for terminal control.])
4402 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4405 dnl Turned on June 1996 supposing nobody will mind it.
4406 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4407 if test "${opsys}" != "mingw32"; then
4408 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4409 in the full name stands for the login id.])
4412 dnl Everybody supports this, except MS.
4413 dnl Seems like the kind of thing we should be testing for, though.
4414 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4415 if test "${opsys}" != "mingw32"; then
4416 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4419 dnl Everybody supports this, except MS-DOS.
4420 dnl Seems like the kind of thing we should be testing for, though.
4421 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4422 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4423 4.2-compatible sockets.])
4425 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4427 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4428 a null file, or a data sink.])
4429 if test "${opsys}" = "mingw32"; then
4430 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4432 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4435 if test "${opsys}" = "mingw32"; then
4440 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4441 dnl This is for MinGW, and is used in test/Makefile.in.
4442 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4443 dnl decides that a command-line argument to be passed to a MinGW program
4444 dnl is a PATH-style list of directories. But that heuristics plays it
4445 dnl safe, and only does the replacement when it is _absolutely_ sure it
4446 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4447 dnl which breaks in-tree builds. So we do this manually instead.
4448 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4449 dnl be computed as ':' in MSYS Bash.
4452 dnl Everybody supports this, except MS-DOS.
4453 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4455 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4458 AC_DEFINE(DIRECTORY_SEP, ['/'],
4459 [Character that separates directories in a file name.])
4461 if test "${opsys}" = "mingw32"; then
4462 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4463 [Returns true if character is a device separator.])
4465 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4466 [Returns true if character is a directory separator.])
4468 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4469 [Returns true if character is any form of separator.])
4471 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4472 [Returns true if character is a device separator.])
4474 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4475 [Returns true if character is a directory separator.])
4477 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4478 [Returns true if character is any form of separator.])
4481 if test "$USE_X_TOOLKIT" != "none"; then
4485 dnl Assar Westerlund <assar@sics.se> says this is necessary
4486 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4490 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4492 dnl See libXmu.a check above.
4493 if test x$HAVE_X11XTR6 = xyes; then
4494 LIBS="-lXt -lSM -lICE $LIBXMU"
4496 OTHERLIBS="-lXt -$LIBXMU"
4499 [#include <X11/Intrinsic.h>
4500 #include <X11/Xmu/Editres.h>],
4501 [_XEditResCheckMessages (0, 0, 0, 0);],
4502 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4503 [Define to 1 if we should use XEditRes.])])
4510 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4511 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4512 dnl need the constant to dimension an array. So wire in the appropriate
4514 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4518 emacs_broken_SIGIO=no
4521 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4522 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4523 hpux* | nacl | openbsd | sol2* | unixware )
4524 emacs_broken_SIGIO=yes
4528 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4529 dnl the way this system works, libc functions that return malloced
4530 dnl memory use the libc malloc implementation. Calling xfree or
4531 dnl xrealloc on the results of such functions results in a crash.
4533 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4534 dnl but that does not currently work on this system.
4536 dnl It is possible to completely override the malloc implementation on
4537 dnl AIX, but that involves putting the malloc functions in a shared
4538 dnl library and setting the MALLOCTYPE environment variable to point to
4539 dnl that shared library.
4541 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4542 dnl to avoid a crash just use the Emacs implementation for that function.
4544 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4545 dnl of this file, so that we do not check for get_current_dir_name
4546 dnl on AIX. But that might be fragile if something else ends
4547 dnl up testing for get_current_dir_name as a dependency.
4548 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4549 get_current_dir_name should not be used.])
4553 dnl Circumvent a bug in FreeBSD. In the following sequence of
4554 dnl writes/reads on a PTY, read(2) returns bogus data:
4556 dnl write(2) 1022 bytes
4557 dnl write(2) 954 bytes, get EAGAIN
4558 dnl read(2) 1024 bytes in process_read_output
4559 dnl read(2) 11 bytes in process_read_output
4561 dnl That is, read(2) returns more bytes than have ever been written
4562 dnl successfully. The 1033 bytes read are the 1022 bytes written
4563 dnl successfully after processing (for example with CRs added if the
4564 dnl terminal is set up that way which it is here). The same bytes will
4565 dnl be seen again in a later read(2), without the CRs.
4566 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4567 work around an issue when reading from a PTY.])
4573 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4574 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4579 darwin | dragonfly | freebsd | netbsd | openbsd )
4580 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4581 close a pty to make it a controlling terminal (it is already a
4582 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4586 dnl FIXME Surely we can test for this rather than hard-code it.
4588 netbsd | openbsd) sound_device="/dev/audio" ;;
4589 *) sound_device="/dev/dsp" ;;
4593 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4594 [Name of the default sound device.])
4597 dnl Emacs can read input using SIGIO and buffering characters itself,
4598 dnl or using CBREAK mode and making C-g cause SIGINT.
4599 dnl The choice is controlled by the variable interrupt_input.
4601 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4603 dnl Emacs uses the presence of the USABLE_SIGIO macro
4604 dnl to indicate whether or not signal-driven I/O is possible. It uses
4605 dnl INTERRUPT_INPUT to decide whether to use it by default.
4607 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4608 dnl CBREAK mode has two disadvantages
4609 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4610 dnl I hear that in system V this problem does not exist.
4611 dnl 2) Control-G causes output to be discarded.
4612 dnl I do not know whether this can be fixed in system V.
4614 dnl Another method of doing input is planned but not implemented.
4615 dnl It would have Emacs fork off a separate process
4616 dnl to read the input and send it to the true Emacs process
4619 darwin | gnu-linux | gnu-kfreebsd )
4620 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4625 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4626 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4627 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4628 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4629 dnl taking float or double parameters.
4631 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4632 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4633 file defines 'NeedWidePrototypes' as 'NO'.])
4638 dnl Used in process.c, this must be a loop, even if it only runs once.
4639 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4640 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4641 dnl trying suffixes 0-16.
4642 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4643 first PTY, if PTYs are supported.])
4644 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4645 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4646 end of a PTY, if non-standard.])
4647 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4648 end of a PTY, if non-standard.])
4652 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4653 dnl You allocate a pty by opening /dev/ptc to get the master side.
4654 dnl To get the name of the slave side, you just ttyname() the master side.
4655 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4656 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4660 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4661 dnl multi-line AC_DEFINEs are hard. :(
4662 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)])
4663 AC_DEFINE(PTY_NAME_SPRINTF, [])
4664 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4668 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4671 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4673 if test "x$ac_cv_func_grantpt" = xyes; then
4674 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4675 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4676 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4677 dnl to prevent sigchld_handler from intercepting the child's death.
4678 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); }])
4679 dnl if HAVE_POSIX_OPENPT
4680 if test "x$ac_cv_func_posix_openpt" = xyes; then
4681 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4682 AC_DEFINE(PTY_NAME_SPRINTF, [])
4684 elif test "x$ac_cv_func_getpt" = xyes; then
4685 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4686 AC_DEFINE(PTY_NAME_SPRINTF, [])
4688 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4691 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4696 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4697 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4698 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4702 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4703 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4704 dnl from intercepting that death. If any child but grantpt's should die
4705 dnl within, it should be caught after sigrelse(2).
4706 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4707 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); }])
4711 dnl Comments are as per sol2*.
4712 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4713 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); }])
4720 dnl This change means that we don't loop through allocate_pty too
4721 dnl many times in the (rare) event of a failure.
4722 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4723 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4724 dnl Push various streams modules onto a PTY channel. Used in process.c.
4725 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.])
4730 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4731 "typing" a signal character on the pty.])
4734 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4735 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4736 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4739 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4740 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4741 gnu-linux | gnu-kfreebsd )
4743 AC_MSG_CHECKING([for signals via characters])
4744 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4745 #include <linux/version.h>
4746 #if LINUX_VERSION_CODE < 0x20400
4747 # error "Linux version too old"
4749 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4751 AC_MSG_RESULT([$emacs_signals_via_chars])
4752 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4757 AH_TEMPLATE(TAB3, [Undocumented.])
4760 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4762 gnu | dragonfly | freebsd | netbsd | openbsd )
4763 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4764 AC_DEFINE(TAB3, OXTABS)
4767 gnu-linux | gnu-kfreebsd )
4768 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4772 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4773 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4774 [Mark a secondary stack, like the register stack on the ia64.]), [])
4778 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4779 run_time_remap; for HPUX.])
4784 dnl This won't be used automatically yet. We also need to know, at least,
4785 dnl that the stack is continuous.
4786 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4787 registers relevant for conservative garbage collection in the jmp_buf.])
4791 dnl Not all the architectures are tested, but there are Debian packages
4792 dnl for SCM and/or Guile on them, so the technique must work. See also
4793 dnl comments in alloc.c concerning setjmp and gcc.
4794 dnl Fixme: it's probably safe to just use the GCC conditional below.
4795 gnu-linux | gnu-kfreebsd )
4796 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4797 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4798 || defined __alpha__ || defined __mips__ || defined __s390__ \
4799 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4800 || defined __ia64__ || defined __sh__
4803 # error "setjmp not known to work on this arch"
4805 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4810 if test x$GCC = xyes; then
4811 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4812 AC_DEFINE(GC_SETJMP_WORKS, 1)
4815 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4816 AC_DEFINE(GC_SETJMP_WORKS, 1)
4821 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4822 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4825 [[#include <setjmp.h>
4827 # define _longjmp longjmp
4832 _longjmp (j, 1);]])],
4833 [emacs_cv_func__setjmp=yes],
4834 [emacs_cv_func__setjmp=no])])
4835 if test $emacs_cv_func__setjmp = yes; then
4836 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4839 # We need to preserve signal mask to handle C stack overflows.
4840 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4843 [[#include <setjmp.h>
4846 if (! sigsetjmp (j, 1))
4847 siglongjmp (j, 1);]])],
4848 [emacs_cv_func_sigsetjmp=yes],
4849 [emacs_cv_func_sigsetjmp=no])])
4850 if test $emacs_cv_func_sigsetjmp = yes; then
4851 AC_DEFINE([HAVE_SIGSETJMP], 1,
4852 [Define to 1 if sigsetjmp and siglongjmp work.])
4855 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4856 yes,yes,* | *,*,mingw32)
4857 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4858 [Define to 1 if C stack overflow can be handled in some cases.]);;
4863 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4864 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4865 dnl and this is all we need.
4866 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4873 dnl Used in xfaces.c.
4874 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4875 some systems, where it requires time.h.])
4880 dnl Define symbols to identify the version of Unix this is.
4881 dnl Define all the symbols that apply correctly.
4882 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4883 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4884 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4885 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4890 dnl This symbol should be defined on AIX Version 3 ???????
4891 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4893 # error "_AIX not defined"
4895 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4899 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4903 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4904 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4905 dnl distinguish macOS from pure Darwin.
4906 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4909 gnu-linux | gnu-kfreebsd )
4911 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4916 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4920 AC_DEFINE(DOS_NT, [])
4921 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4922 if test "x$ac_enable_checking" != "x" ; then
4923 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4929 AC_DEFINE(USG5_4, [])
4930 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4935 AC_DEFINE(USG5_4, [])
4939 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4942 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4943 emacs_cv_usable_FIONREAD=no
4947 emacs_cv_usable_FIONREAD=yes
4952 [AC_LANG_PROGRAM([[#include <sys/types.h>
4953 #include <sys/ioctl.h>
4955 # include <sys/filio.h>
4958 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4959 [emacs_cv_usable_FIONREAD=yes],
4960 [emacs_cv_usable_FIONREAD=no])
4963 if test $emacs_cv_usable_FIONREAD = yes; then
4964 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4966 if test $emacs_broken_SIGIO = no; then
4967 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4969 [AC_LANG_PROGRAM([[#include <fcntl.h>
4972 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4973 [emacs_cv_usable_SIGIO=yes],
4974 [emacs_cv_usable_SIGIO=no])],
4975 [emacs_cv_usable_SIGIO=yes],
4976 [emacs_cv_usable_SIGIO=no])
4977 if test $emacs_cv_usable_SIGIO = yes; then
4978 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4985 dnl It works to open the pty's tty in the parent (Emacs), then
4986 dnl close and reopen it in the child.
4987 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4988 works to open a pty's tty in the parent process, then close and
4989 reopen it in the child.])
4993 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4998 # Set up the CFLAGS for real compilation, so we can substitute it.
4999 CFLAGS="$REAL_CFLAGS"
5000 CPPFLAGS="$REAL_CPPFLAGS"
5003 ## Hack to detect a buggy GCC version.
5004 if test "$GCC" = yes && \
5005 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
5007 *-fno-optimize-sibling-calls*) ;;
5009 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
5013 version=$PACKAGE_VERSION
5015 copyright="Copyright (C) 2017 Free Software Foundation, Inc."
5016 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
5017 [Short copyright string for this version of Emacs.])
5020 ### Specify what sort of things we'll be editing into Makefile and config.h.
5021 ### Use configuration here uncanonicalized to avoid exceeding size limits.
5023 AC_SUBST(configuration)
5028 AC_SUBST(exec_prefix)
5031 AC_SUBST(sharedstatedir)
5032 AC_SUBST(libexecdir)
5036 AC_SUBST(standardlisppath)
5037 AC_SUBST(locallisppath)
5039 AC_SUBST(x_default_search_path)
5041 AC_SUBST(archlibdir)
5047 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
5048 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
5049 ## end of LIBX_BASE, but nothing ever set it.
5050 AC_SUBST(LD_SWITCH_X_SITE)
5051 AC_SUBST(C_SWITCH_X_SITE)
5052 AC_SUBST(GNUSTEP_CFLAGS)
5054 ## Used in lwlib/Makefile.in.
5055 AC_SUBST(X_TOOLKIT_TYPE)
5057 AC_SUBST(ns_appbindir)
5058 AC_SUBST(ns_appresdir)
5060 AC_SUBST(GNU_OBJC_CFLAGS)
5061 AC_SUBST(OTHER_FILES)
5063 if test -n "${term_header}"; then
5064 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
5065 [Define to the header for the built-in window system.])
5068 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
5069 [Define to the canonical Emacs configuration name.])
5070 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
5071 [Define to the options passed to configure.])
5076 if test "${HAVE_X_WINDOWS}" = "yes" ; then
5077 AC_DEFINE(HAVE_X_WINDOWS, 1,
5078 [Define to 1 if you want to use the X window system.])
5080 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
5082 if test "$HAVE_CAIRO" = "yes"; then
5083 FONT_OBJ="ftfont.o ftcrfont.o"
5084 elif test "$HAVE_XFT" = "yes"; then
5085 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
5086 elif test "$HAVE_FREETYPE" = "yes"; then
5087 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
5097 if test "${USE_X_TOOLKIT}" != "none" ; then
5099 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
5100 if test "${USE_X_TOOLKIT}" = "LUCID"; then
5101 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
5102 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
5103 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
5107 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
5108 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
5112 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
5113 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
5114 MOTIF_LIBW="MOTIF_LIBW -lXimp"
5118 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
5119 MOTIF_LIBW="$MOTIF_LIBW -li18n"
5122 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
5125 AC_SUBST(WIDGET_OBJ)
5128 case "$USE_X_TOOLKIT" in
5129 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5130 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5131 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5133 if test "$HAVE_XWIDGETS" = "yes"; then
5134 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5136 AC_SUBST(TOOLKIT_LIBW)
5138 if test "${opsys}" != "mingw32"; then
5139 if test "$USE_X_TOOLKIT" = "none"; then
5140 LIBXT_OTHER="\$(LIBXSM)"
5142 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5145 AC_SUBST(LIBXT_OTHER)
5147 if test "${HAVE_X11}" = "yes" ; then
5148 AC_DEFINE(HAVE_X11, 1,
5149 [Define to 1 if you want to use version 11 of X windows.])
5150 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5154 AC_SUBST(LIBX_OTHER)
5157 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5159 elif test "$USE_X_TOOLKIT" = none; then
5161 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5162 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5164 LIBXMENU='$(lwlibdir)/liblw.a'
5165 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5169 AC_CACHE_CHECK([for struct alignment],
5170 [emacs_cv_struct_alignment],
5172 [AC_LANG_PROGRAM([[#include <stddef.h>
5173 struct __attribute__ ((aligned (8))) s { char c; };
5174 struct t { char c; struct s s; };
5175 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5177 [emacs_cv_struct_alignment=yes],
5178 [emacs_cv_struct_alignment=no])])
5179 if test "$emacs_cv_struct_alignment" = yes; then
5180 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5181 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5182 structure to an N-byte boundary.])
5185 if test "${GNU_MALLOC}" = "yes" ; then
5186 AC_DEFINE(GNU_MALLOC, 1,
5187 [Define to 1 if you want to use the GNU memory allocator.])
5191 if test "${REL_ALLOC}" = "yes" ; then
5192 AC_DEFINE(REL_ALLOC, 1,
5193 [Define REL_ALLOC if you want to use the relocating allocator for
5196 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5198 AC_SUBST(RALLOC_OBJ)
5200 if test "$opsys" = "cygwin"; then
5201 CYGWIN_OBJ="cygw32.o"
5202 ## Cygwin differs because of its unexec().
5204 POST_ALLOC_OBJ=lastfile.o
5205 elif test "$opsys" = "mingw32"; then
5208 POST_ALLOC_OBJ=lastfile.o
5211 PRE_ALLOC_OBJ=lastfile.o
5214 AC_SUBST(CYGWIN_OBJ)
5215 AC_SUBST(PRE_ALLOC_OBJ)
5216 AC_SUBST(POST_ALLOC_OBJ)
5218 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5219 dnl verbatim defined above. The tricky name is apropos, as this hack
5220 dnl makes Fortify go sour!
5221 AH_VERBATIM([FORTIFY_SOUR],
5222 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5223 The workaround disables some useful run-time checking, so it
5224 should be conditional to the platforms with the performance bug.
5225 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5226 #if defined __APPLE__ && defined __GNUC__
5227 # ifndef _DONT_USE_CTYPE_INLINE_
5228 # define _DONT_USE_CTYPE_INLINE_
5230 # ifndef _FORTIFY_SOURCE
5231 # define _FORTIFY_SOURCE 0
5236 # If user asks to omit features, disable optional features that gnulib
5237 # might otherwise enable.
5238 if test "$with_features" = no && test "$enable_acl" != yes; then
5242 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5243 # it temporarily reverts them to their pre-pkg-config values,
5244 # because gnulib needs to work with both src (which uses the
5245 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5246 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5247 # and it therefore needs to run in an environment where LIBS does not
5248 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5249 # for some package unrelated to lib-src.
5252 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5253 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5254 gl_ASSERT_NO_GNULIB_POSIXCHECK
5255 gl_ASSERT_NO_GNULIB_TESTS
5260 if test "${opsys}" = "mingw32"; then
5261 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5262 # Remove unneeded switches from the value of CC that goes to Makefiles
5263 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5267 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5269 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5272 ## The -headerpad option tells ld (see man page) to leave room at the
5273 ## end of the header for adding load commands. Needed for dumping.
5274 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5275 ## architecture (where they are 78 bytes each). The actual number of
5276 ## load commands added is not consistent but normally ranges from
5277 ## about 14 to about 34. Setting it high gets us plenty of slop and
5278 ## only costs about 1.5K of wasted binary space.
5279 headerpad_extra=1000
5280 if test "$HAVE_NS" = "yes"; then
5281 libs_nsgui="-framework AppKit"
5282 if test "$NS_IMPL_COCOA" = "yes"; then
5283 libs_nsgui="$libs_nsgui -framework IOKit"
5288 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5290 ## This is here because src/Makefile.in did some extra fiddling around
5291 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5292 ## LD_SWITCH_SYSTEM_TEMACS instead,
5293 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5294 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5297 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5298 ## find X at run-time.
5299 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5300 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5301 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5302 ## had different values in configure (in ac_link) and src/Makefile.in.
5303 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5304 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5307 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5308 case "$canonical" in
5309 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5310 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5314 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5317 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5318 # Ubuntu, and other systems with "hardened" GCC configurations for
5319 # some reason (Bug#18784). We don't know why this works, but not
5320 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5321 # when trying the option, otherwise clang keeps warning that it does
5322 # not understand it, and pre-4.6 GCC has a similar problem
5323 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5324 # spelling used by GCC 6.1.0 and later (Bug#24682).
5326 [for $CC option to disable position independent executables],
5327 [emacs_cv_prog_cc_no_pie],
5328 [emacs_save_c_werror_flag=$ac_c_werror_flag
5329 emacs_save_LDFLAGS=$LDFLAGS
5330 ac_c_werror_flag=yes
5331 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5332 test $emacs_cv_prog_cc_no_pie = no && break
5333 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5334 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5336 ac_c_werror_flag=$emacs_save_c_werror_flag
5337 LDFLAGS=$emacs_save_LDFLAGS])
5338 if test "$emacs_cv_prog_cc_no_pie" != no; then
5339 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5342 if test x$ac_enable_profiling != x ; then
5344 *freebsd | gnu-linux) ;;
5345 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5349 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5351 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5353 ## Common for all window systems
5354 if test "$window_system" != "none"; then
5355 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5356 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5357 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5360 AC_SUBST(WINDOW_SYSTEM_OBJ)
5362 AH_TOP([/* GNU Emacs site configuration template file.
5364 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2017
5365 Free Software Foundation, Inc.
5367 This file is part of GNU Emacs.
5369 GNU Emacs is free software: you can redistribute it and/or modify
5370 it under the terms of the GNU General Public License as published by
5371 the Free Software Foundation, either version 3 of the License, or (at
5372 your option) any later version.
5374 GNU Emacs is distributed in the hope that it will be useful,
5375 but WITHOUT ANY WARRANTY; without even the implied warranty of
5376 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5377 GNU General Public License for more details.
5379 You should have received a copy of the GNU General Public License
5380 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5383 /* No code in Emacs #includes config.h twice, but some bits of code
5384 intended to work with other packages as well (like gmalloc.c)
5385 think they can include it as many times as they like. */
5386 #ifndef EMACS_CONFIG_H
5387 #define EMACS_CONFIG_H
5390 AH_BOTTOM([#include <conf_post.h>
5392 #endif /* EMACS_CONFIG_H */
5401 #### Report on what we decided to do.
5402 #### Report GTK as a toolkit, even if it doesn't use Xt.
5403 #### It makes printing result more understandable as using GTK sets
5404 #### toolkit_scroll_bars to yes by default.
5405 if test "${HAVE_GTK}" = "yes"; then
5406 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5409 if test $USE_ACL -ne 0; then
5410 ACL_SUMMARY="yes $LIB_ACL"
5415 emacs_standard_dirs='Standard dirs'
5417 Configured for '${canonical}'.
5419 Where should the build process find the source code? ${srcdir}
5420 What compiler should emacs be built with? ${CC} ${CFLAGS}
5421 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5422 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5423 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5424 What window system should Emacs use? ${window_system}
5425 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5426 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5427 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5430 emacs_config_features=
5431 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5432 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5433 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5434 XWIDGETS LIBSYSTEMD CANNOT_DUMP; do
5437 CANNOT_DUMP) eval val=\${$opt} ;;
5438 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5439 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5440 *) eval val=\${HAVE_$opt} ;;
5443 xno|xnone|x) continue ;;
5448 GTK*|LUCID|MOTIF) opt=$val ;;
5453 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5456 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5457 [Summary of some of the main features enabled by configure.])
5459 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5460 Does Emacs use -lXpm? ${HAVE_XPM}
5461 Does Emacs use -ljpeg? ${HAVE_JPEG}
5462 Does Emacs use -ltiff? ${HAVE_TIFF}
5463 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5464 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5465 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5466 Does Emacs use cairo? ${HAVE_CAIRO}
5467 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5468 Does Emacs support sound? ${HAVE_SOUND}
5469 Does Emacs use -lgpm? ${HAVE_GPM}
5470 Does Emacs use -ldbus? ${HAVE_DBUS}
5471 Does Emacs use -lgconf? ${HAVE_GCONF}
5472 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5473 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5474 Does Emacs use access control lists? ${ACL_SUMMARY}
5475 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5476 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5477 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5478 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5479 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5480 Does Emacs use -lotf? ${HAVE_LIBOTF}
5481 Does Emacs use -lxft? ${HAVE_XFT}
5482 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5483 Does Emacs directly use zlib? ${HAVE_ZLIB}
5484 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5485 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5486 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5487 Does Emacs have threading support in lisp? ${threads_enabled}
5490 if test -n "${EMACSDATA}"; then
5491 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5493 if test -n "${EMACSDOC}"; then
5494 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5499 if test "$HAVE_NS" = "yes"; then
5501 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5502 The installed application will go to nextstep/Emacs.app and can be
5503 run or moved from there."])
5504 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5505 echo "The application will be fully self-contained."
5507 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5508 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5509 to run if these resources are not installed."])
5514 if test "${opsys}" = "cygwin"; then
5516 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5522 # Remove any trailing slashes in these variables.
5524 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5526 case $exec_prefix in
5527 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5530 if test "$HAVE_NS" = "yes"; then
5531 if test "$NS_IMPL_GNUSTEP" = yes; then
5532 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5533 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5534 ns_check_file=Resources/Info-gnustep.plist
5536 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5537 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5538 ns_check_file=Contents/Info.plist
5540 AC_SUBST(ns_check_file)
5543 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5545 dnl config.status treats $srcdir specially, so I think this is ok...
5546 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5548 m4_define([subdir_makefiles],
5549 [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])
5550 SUBDIR_MAKEFILES="subdir_makefiles"
5551 AC_CONFIG_FILES(subdir_makefiles)
5553 dnl test/ is not present in release tarfiles.
5554 opt_makefile=test/Makefile
5556 if test -f "$srcdir/$opt_makefile.in"; then
5557 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5558 dnl Again, it's best not to use a variable. Though you can add
5559 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5560 AC_CONFIG_FILES([test/Makefile])
5564 dnl The admin/ directory used to be excluded from tarfiles.
5565 if test -d $srcdir/admin; then
5566 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5567 AC_CONFIG_FILES([admin/charsets/Makefile])
5568 AC_CONFIG_FILES([admin/unidata/Makefile])
5569 AC_CONFIG_FILES([admin/grammars/Makefile])
5573 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5575 AC_SUBST(SUBDIR_MAKEFILES_IN)
5577 dnl You might wonder (I did) why epaths.h is generated by running make,
5578 dnl rather than just letting configure generate it from epaths.in.
5579 dnl One reason is that the various paths are not fully expanded (see above);
5580 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5581 dnl Secondly, the GNU Coding standards require that one should be able
5582 dnl to run 'make prefix=/some/where/else' and override the values set
5583 dnl by configure. This also explains the 'move-if-change' test and
5584 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5585 AC_CONFIG_COMMANDS([src/epaths.h], [
5586 if test "${opsys}" = "mingw32"; then
5587 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5589 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5590 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5591 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5593 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5594 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5596 AC_CONFIG_COMMANDS([src/.gdbinit], [
5597 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5598 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5602 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5603 dnl See comments for etc-refcards-emacsver.tex.
5604 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5605 dnl it is not quite the same. But we are generating in $srcdir.
5606 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5607 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5608 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5611 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5612 dnl then a directory etc/refcards is created in the build directory,
5613 dnl which is probably harmless, but confusing (in out-of-tree builds).
5614 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5615 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5616 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5617 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5618 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5621 if test $AUTO_DEPEND = yes; then
5622 for dir in $AUTODEPEND_PARENTS; do
5623 AS_MKDIR_P([$dir/deps])
5629 if test ! "$with_mailutils"; then
5630 if test "$with_pop" = yes; then
5631 AC_MSG_WARN([This configuration installs a 'movemail' program
5632 that retrieves POP3 email via only insecure channels.
5633 To omit insecure POP3, you can use '$0 --without-pop'.])
5638 # Don't suggest GNU Mailutils, as it hasn't been ported.
5641 emacs_fix_movemail="use '$0 --with-mailutils'"
5642 case `(movemail --version) 2>/dev/null` in
5644 *) emacs_fix_movemail="install GNU Mailutils
5645 <http://mailutils.org> and $emacs_fix_movemail";;
5647 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5651 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])