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, 1999-2018 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 <https://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, 26.1.50, 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 # We downcase the drive letter to avoid warnings when
172 # generating autoloads.
173 eval 'srcdir=/`echo ${srcdir:0:1} | sed "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"`"${srcdir:2}"'
179 configuration=${host_alias-${build_alias-$host}}
180 emacs_uname_r=`uname -r`
182 dnl Support for --program-prefix, --program-suffix and
183 dnl --program-transform-name options
186 dnl It is important that variables on the RHS not be expanded here,
187 dnl hence the single quotes. This is per the GNU coding standards, see
188 dnl (autoconf) Installation Directory Variables
189 dnl See also epaths.h below.
190 lispdir='${datadir}/emacs/${version}/lisp'
191 standardlisppath='${lispdir}'
192 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
193 '${datadir}/emacs/site-lisp'
194 lisppath='${locallisppath}:${standardlisppath}'
195 etcdir='${datadir}/emacs/${version}/etc'
196 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
197 etcdocdir='${datadir}/emacs/${version}/etc'
198 gamedir='${localstatedir}/games/emacs'
200 dnl Special option to disable the most of other options.
202 [AS_HELP_STRING([--without-all],
203 [omit almost all features and build
204 small executable with minimal dependencies])],
205 [with_features=$withval],
208 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
209 dnl Create a new --with option that defaults to being disabled.
210 dnl NAME is the base name of the option. The shell variable with_NAME
211 dnl will be set to either the user's value (if the option is
212 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
213 dnl option is not specified). Note that the shell variable name is
214 dnl constructed as autoconf does, by replacing non-alphanumeric
215 dnl characters with "_".
216 dnl HELP-STRING is the help text for the option.
217 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
218 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
219 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
222 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
223 dnl Create a new --with option that defaults to $with_features.
224 dnl NAME is the base name of the option. The shell variable with_NAME
225 dnl will be set either to 'no' (for a plain --without-NAME) or to
226 dnl 'yes' (if the option is not specified). Note that the shell
227 dnl variable name is constructed as autoconf does, by replacing
228 dnl non-alphanumeric characters with "_".
229 dnl HELP-STRING is the help text for the option.
230 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
231 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
232 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
235 # For retrieving mail, unencrypted network connections are the default
236 # only on native MS-Windows platforms. (FIXME: These platforms should
237 # also be secure by default.)
239 AC_ARG_WITH([mailutils],
240 [AS_HELP_STRING([--with-mailutils],
241 [rely on GNU Mailutils, so that the --without-pop through --with-mailhost
242 options are irrelevant; this is the default if GNU Mailutils is
245 [with_mailutils=$with_features
246 if test "$with_mailutils" = yes; then
247 (movemail --version) >/dev/null 2>&1 || with_mailutils=no
249 if test "$with_mailutils" = no; then
252 AC_SUBST([with_mailutils])
255 [AS_HELP_STRING([--with-pop],
256 [Support POP mail retrieval if Emacs movemail is used (not recommended,
257 as Emacs movemail POP is insecure). This is the default only on
258 native MS-Windows.])],
261 *-mingw*) with_pop=yes;;
262 *) with_pop=no-by-default;;
264 if test "$with_pop" = yes; then
265 AC_DEFINE(MAIL_USE_POP)
267 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
269 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
270 if test "$with_kerberos" != no; then
273 AH_TEMPLATE(KERBEROS,
274 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
276 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
277 if test "${with_kerberos5}" != no; then
278 if test "${with_kerberos}" = no; then
282 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
285 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
286 dnl FIXME hesiod support may not be present, so it seems like an error
287 dnl to define, or at least use, this unconditionally.
288 if test "$with_hesiod" != no; then
289 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
292 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
293 if test "$with_mail_unlink" != no; then
294 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
297 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
298 [string giving default POP mail host])],
299 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
301 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
302 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
303 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
304 [ case "${withval}" in
305 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
306 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
307 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
312 [with_sound=$with_features])
314 dnl FIXME currently it is not the last.
315 dnl This should be the last --with option, because --with-x is
316 dnl added later on when we find the file name of X, and it's best to
317 dnl keep them together visually.
318 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
319 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
320 [ case "${withval}" in
321 y | ye | yes ) val=gtk ;;
323 l | lu | luc | luci | lucid ) val=lucid ;;
324 a | at | ath | athe | athen | athena ) val=athena ;;
325 m | mo | mot | moti | motif ) val=motif ;;
326 g | gt | gtk ) val=gtk ;;
330 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
331 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
332 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
333 'athena' and 'lucid' are synonyms.])
339 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])
340 if test "$with_wide_int" = yes; then
341 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
344 dnl _ON results in a '--without' option in the --help output, so
345 dnl the help text should refer to "don't compile", etc.
346 with_xpm_set=${with_xpm+set}
347 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
348 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
349 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
350 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
351 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
352 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
353 OPTION_DEFAULT_ON([lcms2],[don't compile with Little CMS support])
354 OPTION_DEFAULT_ON([libsystemd],[don't compile with libsystemd support])
355 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
356 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
357 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
359 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
360 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
361 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
363 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
364 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
365 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
366 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
367 [use Nextstep (macOS Cocoa or GNUstep) windowing system.
368 On by default on macOS.])],[],[with_ns=maybe])
369 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
371 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
372 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
373 AC_ARG_WITH([gconf],[AS_HELP_STRING([--with-gconf],
374 [compile with Gconf support (Gsettings replaces this)])],[],[with_gconf=maybe])
375 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
376 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
377 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
378 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
379 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
380 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
382 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
383 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
384 [ case "${withval}" in
385 y | ye | yes ) val=yes ;;
387 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
388 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
389 g | gf | gfi | gfil | gfile ) val=gfile ;;
390 w | w3 | w32 ) val=w32 ;;
391 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
392 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
393 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
394 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
397 with_file_notification=$val
399 [with_file_notification=$with_features])
401 OPTION_DEFAULT_OFF([xwidgets],
402 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
404 ## For the times when you want to build Emacs but don't have
405 ## a suitable makeinfo, and can live without the manuals.
406 dnl https://lists.gnu.org/r/emacs-devel/2008-04/msg01844.html
407 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
409 ## Makefile.in needs the cache file name.
412 ## This is an option because I do not know if all info/man support
413 ## compressed files, nor how to test if they do so.
414 OPTION_DEFAULT_ON([compress-install],
415 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
416 make GZIP_PROG= install])
418 AC_ARG_WITH(gameuser,dnl
419 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
420 [user for shared game score files.
421 An argument prefixed by ':' specifies a group instead.])])
424 case ${with_gameuser} in
426 yes) gamegroup=games ;;
427 :*) gamegroup=${with_gameuser#:} ;;
428 *) gameuser=${with_gameuser} ;;
431 AC_ARG_WITH([gnustep-conf],dnl
432 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
433 [name of GNUstep configuration file to use on systems where the command
434 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
435 /etc/GNUstep/GNUstep.conf])])
436 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
437 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
438 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
439 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
441 AC_ARG_ENABLE(ns-self-contained,
442 [AS_HELP_STRING([--disable-ns-self-contained],
443 [disable self contained build under NeXTstep])],
444 EN_NS_SELF_CONTAINED=$enableval,
445 EN_NS_SELF_CONTAINED=yes)
448 AC_ARG_ENABLE(locallisppath,
449 [AS_HELP_STRING([--enable-locallisppath=PATH],
450 [directories Emacs should search for lisp files specific
452 if test "${enableval}" = "no"; then
454 elif test "${enableval}" != "yes"; then
455 locallisppath=${enableval} locallisppathset=yes
458 AC_ARG_ENABLE(checking,
459 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
460 [enable expensive run-time checks. With LIST,
461 enable only specific categories of checks.
462 Categories are: all,yes,no.
463 Flags are: stringbytes, stringoverrun, stringfreelist,
464 xmallocoverrun, conslist, glyphs])],
465 [ac_checking_flags="${enableval}"],[])
466 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
467 for check in $ac_checking_flags
470 # these set all the flags to specific states
471 yes) ac_enable_checking=1 ;;
472 no) ac_enable_checking= ;
473 ac_gc_check_stringbytes= ;
474 ac_gc_check_string_overrun= ;
475 ac_gc_check_string_free_list= ;
476 ac_xmalloc_overrun= ;
477 ac_gc_check_cons_list= ;
479 all) ac_enable_checking=1 ;
480 ac_gc_check_stringbytes=1 ;
481 ac_gc_check_string_overrun=1 ;
482 ac_gc_check_string_free_list=1 ;
483 ac_xmalloc_overrun=1 ;
484 ac_gc_check_cons_list=1 ;
486 # these enable particular checks
487 stringbytes) ac_gc_check_stringbytes=1 ;;
488 stringoverrun) ac_gc_check_string_overrun=1 ;;
489 stringfreelist) ac_gc_check_string_free_list=1 ;;
490 xmallocoverrun) ac_xmalloc_overrun=1 ;;
491 conslist) ac_gc_check_cons_list=1 ;;
492 glyphs) ac_glyphs_debug=1 ;;
493 *) AC_MSG_ERROR(unknown check category $check) ;;
498 if test x$ac_enable_checking != x ; then
499 AC_DEFINE(ENABLE_CHECKING, 1,
500 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
502 if test x$ac_gc_check_stringbytes != x ; then
503 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
504 [Define this temporarily to hunt a bug. If defined, the size of
505 strings is redundantly recorded in sdata structures so that it can
506 be compared to the sizes recorded in Lisp strings.])
508 if test x$ac_gc_check_string_overrun != x ; then
509 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
510 [Define this to check for short string overrun.])
512 if test x$ac_gc_check_string_free_list != x ; then
513 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
514 [Define this to check the string free list.])
516 if test x$ac_xmalloc_overrun != x ; then
517 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
518 [Define this to check for malloc buffer overrun.])
520 if test x$ac_gc_check_cons_list != x ; then
521 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
522 [Define this to check for errors in cons list.])
524 if test x$ac_glyphs_debug != x ; then
525 AC_DEFINE(GLYPH_DEBUG, 1,
526 [Define this to enable glyphs debugging code.])
529 dnl The name of this option is unfortunate. It predates, and has no
530 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
531 dnl Actually, it stops it working.
532 dnl https://lists.gnu.org/r/emacs-devel/2012-11/msg00393.html
533 AC_ARG_ENABLE(profiling,
534 [AS_HELP_STRING([--enable-profiling],
535 [build emacs with low-level, gprof profiling support.
536 Mainly useful for debugging Emacs itself. May not work on
537 all platforms. Stops profiler.el working.])],
538 [ac_enable_profiling="${enableval}"],[])
539 if test x$ac_enable_profiling != x ; then
540 PROFILING_CFLAGS="-DPROFILING=1 -pg"
544 AC_SUBST(PROFILING_CFLAGS)
546 AC_ARG_ENABLE(autodepend,
547 [AS_HELP_STRING([--enable-autodepend],
548 [automatically generate dependencies to .h-files.
549 Requires gcc, enabled if found.])],
550 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
552 AC_ARG_ENABLE(gtk-deprecation-warnings,
553 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
554 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
555 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
558 AC_ARG_ENABLE([build-details],
559 [AS_HELP_STRING([--disable-build-details],
560 [Make the build more deterministic by omitting host
561 names, time stamps, etc. from the output.])],
562 [test "$enableval" = no && BUILD_DETAILS=--no-build-details])
563 AC_SUBST([BUILD_DETAILS])
565 dnl This used to use changequote, but, apart from 'changequote is evil'
566 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
567 dnl the great gob of text. Thus it's not processed for possible expansion.
568 dnl Just make sure the brackets remain balanced.
570 dnl Since Emacs can't find matching pairs of quotes, boundaries are
571 dnl indicated by comments.
575 ### If you add support for a new configuration, add code to this
576 ### switch statement to recognize your configuration name and select
577 ### the appropriate opsys.
579 ### As far as handling version numbers on operating systems is
580 ### concerned, make sure things will fail in a fixable way. If
581 ### /etc/MACHINES doesn't say anything about version numbers, be
582 ### prepared to handle anything reasonably. If version numbers
583 ### matter, be sure /etc/MACHINES says something about it.
586 case "${canonical}" in
588 ## GNU/Linux and similar ports
603 ## FreeBSD kernel + glibc based userland
614 *-*-openbsd* | *-*-mirbsd* )
618 ## Apple Darwin / macOS
620 case "${canonical}" in
621 *-apple-darwin[0-9].*) unported=yes ;;
622 i[3456]86-* | x86_64-* ) ;;
626 ## FIXME: Find a way to use Fink if available (Bug#11507).
629 ## Chromium Native Client
639 ## HP 9000 series 700 and 800, running HP/UX
643 hppa*-hp-hpux1[1-9]* )
645 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
649 rs6000-ibm-aix4.[23]* )
652 powerpc-ibm-aix4.[23]* )
655 rs6000-ibm-aix[56]* )
658 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
664 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
665 | x86_64-*-solaris2* | x86_64-*-sunos5*)
666 case "${canonical}" in
668 amd64-*-*|x86_64-*-*) ;;
672 case "${canonical}" in
673 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
675 emacs_check_sunpro_c=yes
677 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
678 ## Note that Emacs 23.1's NEWS said the following would be dropped.
679 *-sunos5.6* | *-solaris2.6* )
683 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
684 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
686 emacs_check_sunpro_c=yes
689 ## Watch out for a compiler that we know will not work.
690 case "${canonical}" in
691 *-solaris* | *-sunos5* )
692 if [ "x$CC" = x/usr/ucb/cc ]; then
693 ## /usr/ucb/cc doesn't work;
694 ## we should find some other compiler that does work.
705 test -z "$CC" && CC=qcc
706 CFLAGS="$CFLAGS -D__NO_EXT_QNX"
707 LDFLAGS="-N2MB $LDFLAGS"
710 ## Intel 386 machines where we don't care about the manufacturer.
712 case "${canonical}" in
713 *-darwin* ) opsys=darwin ;;
716 # MinGW overrides and adds some system headers in nt/inc.
717 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
719 *-sysv4.2uw* ) opsys=unixware ;;
720 *-sysv5uw* ) opsys=unixware ;;
721 *-sysv5OpenUNIX* ) opsys=unixware ;;
722 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
728 case "${canonical}" in
731 # MinGW overrides and adds some system headers in nt/inc.
732 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
734 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
743 ### If the code above didn't choose an operating system, just choose
744 ### an operating system based on the configuration name. You really
745 ### only want to use this when you have no idea what the right
746 ### operating system is; if you know what operating systems a machine
747 ### runs, it's cleaner to make it explicit in the case statement
749 if test x"${opsys}" = x; then
750 case "${canonical}" in
751 *-gnu* ) opsys=gnu ;;
761 if test $unported = yes; then
762 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
763 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
764 Check 'etc/MACHINES' for recognized configuration names.])
767 #### Choose a compiler.
769 dnl Don't bother to test for C89.
770 AC_DEFUN([_AC_PROG_CC_C89], [$2])
772 dnl Sets GCC=yes if using gcc.
773 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
774 if test -n "$XCRUN"; then
775 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
776 test -n "$AR" && export AR
779 dnl Emacs needs C99 or later.
784 if test x$GCC = xyes; then
785 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
788 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
789 AC_DEFUN([gl_CRYPTO_CHECK])
790 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
791 # as we don't use them.
792 AC_DEFUN([gl_FCNTL_O_FLAGS])
793 # Avoid gnulib's test for pthread_sigmask.
795 for func in $ac_func_list; do
796 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
799 # Use the system putenv even if it lacks GNU features, as we don't need them,
800 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
801 AC_CHECK_FUNCS_ONCE([putenv])
802 AC_DEFUN([gl_FUNC_PUTENV],
803 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
804 # Emacs does not use the wchar or wctype-h modules.
805 AC_DEFUN([gt_TYPE_WINT_T],
806 [GNULIB_OVERRIDES_WINT_T=0
807 AC_SUBST([GNULIB_OVERRIDES_WINT_T])])
809 # Initialize gnulib right after choosing the compiler.
810 dnl Amongst other things, this sets AR and ARFLAGS.
813 if test "$ac_test_CFLAGS" != set; then
814 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
815 # if -g3 works and the user does not specify CFLAGS.
816 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
819 emacs_g3_CFLAGS='-g3';;
821 emacs_g3_CFLAGS='-g3 -O2';;
825 if test -n "$emacs_g3_CFLAGS"; then
826 emacs_save_CFLAGS=$CFLAGS
827 CFLAGS=$emacs_g3_CFLAGS
828 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
829 [emacs_cv_prog_cc_g3],
830 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
831 [emacs_cv_prog_cc_g3=yes],
832 [emacs_cv_prog_cc_g3=no])])
833 if test $emacs_cv_prog_cc_g3 != yes; then
834 CFLAGS=$emacs_save_CFLAGS
836 if test $opsys = mingw32; then
837 CFLAGS="$CFLAGS -gdwarf-2"
844 # No optimization flag was inferred for this non-GCC compiler.
845 # Try -O. This is needed for xlc on AIX; see Bug#14258.
846 emacs_save_CFLAGS=$CFLAGS
847 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
849 AC_CACHE_CHECK([whether $CC accepts -O],
850 [emacs_cv_prog_cc_o],
851 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
852 [emacs_cv_prog_cc_o=yes],
853 [emacs_cv_prog_cc_o=no])])
854 if test $emacs_cv_prog_cc_o != yes; then
855 CFLAGS=$emacs_save_CFLAGS
860 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
861 # ---------------------------------------------------------------------------
862 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
863 # Otherwise, run RUN-IF-NOT-FOUND.
864 AC_DEFUN([gl_GCC_VERSION_IFELSE],
868 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
871 # error "your version of gcc is older than $1.$2"
878 AC_ARG_ENABLE([gcc-warnings],
879 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
880 [control generation of GCC warnings. The TYPE 'yes'
881 means to fail if any warnings are issued; 'warn-only'
882 means issue warnings without failing (default for
883 developer builds); 'no' means disable warnings
884 (default for non-developer builds).])],
887 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
889 gl_gcc_warnings=$enableval],
890 [# By default, use 'warn-only' if it looks like the invoker of 'configure'
891 # is a developer as opposed to a builder. This is most likely true
892 # if GCC is recent enough and there is a .git directory or file;
893 # however, if there is also a .tarball-version file it is probably
894 # just a release imported into Git for patch management.
896 if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
897 gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])
900 AC_ARG_ENABLE([check-lisp-object-type],
901 [AS_HELP_STRING([--enable-check-lisp-object-type],
902 [Enable compile-time checks for the Lisp_Object data type,
903 which can catch some bugs during development.
904 The default is "no" if --enable-gcc-warnings is "no".])])
905 if test "${enable_check_lisp_object_type-$gl_gcc_warnings}" != "no"; then
906 AC_DEFINE([CHECK_LISP_OBJECT_TYPE], 1,
907 [Define to enable compile-time checks for the Lisp_Object data type.])
910 # clang is unduly picky about some things.
911 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
918 [emacs_cv_clang=yes],
919 [emacs_cv_clang=no])])
922 # When compiling with GCC, prefer -isystem to -I when including system
923 # include files, to avoid generating useless diagnostics for the files.
924 AS_IF([test $gl_gcc_warnings = no],
927 AS_IF([test "$emacs_cv_clang" = yes],
929 # Turn off some warnings if supported.
930 gl_WARN_ADD([-Wno-switch])
931 gl_WARN_ADD([-Wno-pointer-sign])
932 gl_WARN_ADD([-Wno-string-plus-int])
933 gl_WARN_ADD([-Wno-unknown-attributes])
938 # This, $nw, is the list of warnings we disable.
941 case $with_x_toolkit in
942 lucid | athena | motif)
943 # Old toolkits mishandle 'const'.
944 nw="$nw -Wwrite-strings"
947 AS_IF([test $gl_gcc_warnings = yes],
948 [WERROR_CFLAGS=-Werror])
950 nw="$nw -Wduplicated-branches" # Too many false alarms
951 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 80776
952 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
953 nw="$nw -Woverlength-strings" # Not a problem these days
954 nw="$nw -Wformat-nonliteral" # we do this a lot
955 nw="$nw -Wvla" # Emacs uses <vla.h>.
956 nw="$nw -Wswitch-default" # Too many warnings for now
957 nw="$nw -Wunused-const-variable=2" # lisp.h declares const objects.
958 nw="$nw -Winline" # OK to ignore 'inline'
959 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
960 # signed overflow has undefined behavior
961 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
962 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
963 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
965 # Emacs doesn't care about shadowing; see
966 # <https://lists.gnu.org/r/emacs-diffs/2011-11/msg00265.html>.
969 # Emacs's use of alloca inhibits protecting the stack.
970 nw="$nw -Wstack-protector"
972 # Emacs's use of partly-const functions such as Fgnutls_available_p
973 # make this option problematic.
974 nw="$nw -Wsuggest-attribute=const"
976 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
977 # option problematic.
978 nw="$nw -Wsuggest-attribute=pure"
980 # This part is merely for shortening the command line,
981 # since -Wall implies -Wswitch.
984 # This part is merely for shortening the command line,
985 # since -Wno-FOO needs to be added below regardless.
986 nw="$nw -Wmissing-field-initializers"
987 nw="$nw -Woverride-init"
988 nw="$nw -Wtype-limits"
989 nw="$nw -Wunused-parameter"
991 if test "$emacs_cv_clang" = yes; then
992 nw="$nw -Wcast-align"
993 nw="$nw -Wdouble-promotion"
994 nw="$nw -Wmissing-braces"
997 # These cause too much noise in the MinGW build
998 if test $opsys = mingw32; then
999 nw="$nw -Wpointer-sign"
1000 nw="$nw -Wsuggest-attribute=format"
1003 gl_MANYWARN_ALL_GCC([ws])
1004 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
1008 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
1009 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
1010 gl_WARN_ADD([-Wno-override-init]) # More trouble than it is worth
1011 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
1012 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
1013 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
1014 gl_WARN_ADD([-Wno-format-nonliteral])
1016 # clang is unduly picky about braces.
1017 if test "$emacs_cv_clang" = yes; then
1018 gl_WARN_ADD([-Wno-missing-braces])
1021 # This causes too much noise in the MinGW build
1022 if test $opsys = mingw32; then
1023 gl_WARN_ADD([-Wno-pointer-sign])
1026 AC_DEFINE([GCC_LINT], [1], [Define to 1 if --enable-gcc-warnings.])
1027 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
1028 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
1029 [/* Enable compile-time and run-time bounds-checking, and some warnings,
1030 without upsetting glibc 2.15+. */
1031 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
1032 && defined __OPTIMIZE__ && __OPTIMIZE__)
1033 # define _FORTIFY_SOURCE 2
1038 # clang is picky about these regardless of whether
1039 # --enable-gcc-warnings is specified.
1040 if test "$emacs_cv_clang" = yes; then
1041 gl_WARN_ADD([-Wno-initializer-overrides])
1042 gl_WARN_ADD([-Wno-tautological-compare])
1043 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
1046 # Use a slightly smaller set of warning options for lib/.
1048 nw="$nw -Wunused-macros"
1049 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1051 AC_SUBST([WERROR_CFLAGS])
1052 AC_SUBST([GNULIB_WARN_CFLAGS])
1061 AC_ARG_ENABLE(link-time-optimization,
1062 [AS_HELP_STRING([--enable-link-time-optimization],
1063 [build with link-time optimization
1064 (experimental; see INSTALL)])],
1065 if test "${enableval}" != "no"; then
1067 if test "$emacs_cv_clang" = yes; then
1068 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1069 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1070 if test -x "$GOLD_PLUGIN"; then
1073 elif test x$GCC = xyes; then
1074 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1075 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1076 if test x$CPUS != x; then
1082 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1084 if test -z "$LTO"; then
1088 CFLAGS="$CFLAGS $LTO"
1089 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1090 [ac_lto_supported=yes], [ac_lto_supported=no])
1091 CFLAGS="$old_CFLAGS"
1093 AC_MSG_RESULT([$ac_lto_supported])
1094 if test "$ac_lto_supported" = "yes"; then
1095 CFLAGS="$CFLAGS $LTO"
1096 if test "$emacs_cv_clang" = yes; then
1097 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1098 # WARNING: 'ar --plugin ...' doesn't work without
1099 # command, so plugin name is appended to ARFLAGS.
1100 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1101 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1103 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1104 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1105 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1106 dnl dump core on Fedora 20, so play it safe for now.
1107 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1108 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1114 dnl Automake replacements.
1115 AC_DEFUN([AM_CONDITIONAL],
1119 dnl Prefer silent make output. For verbose output, use
1120 dnl 'configure --disable-silent-rules' or 'make V=1' .
1121 dnl This code is adapted from Automake.
1122 dnl Although it can be simplified now that GNU Make is assumed,
1123 dnl the simplification hasn't been done yet.
1124 AC_ARG_ENABLE([silent-rules],
1126 [--disable-silent-rules],
1127 [verbose build output (undo: "make V=0")])])
1128 if test "$enable_silent_rules" = no; then
1129 AM_DEFAULT_VERBOSITY=1
1131 AM_DEFAULT_VERBOSITY=0
1134 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1136 AC_SUBST([AM_DEFAULT_V])
1137 AC_SUBST([AM_DEFAULT_VERBOSITY])
1139 dnl Some other nice autoconf tests.
1141 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1143 dnl if test "x$RANLIB" = x; then
1148 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1149 dnl can be made to directories. This is not relevant for our usage, and
1150 dnl excludes some cases that work fine for us. Eg MS Windows or files
1151 dnl hosted on AFS, both examples where simple links work, but links to
1152 dnl directories fail. We use a cut-down version instead.
1155 AC_CACHE_CHECK([command to symlink files in the same directory], [emacs_cv_ln_s_fileonly],
1156 [rm -f conf$$ conf$$.file
1158 emacs_cv_ln_s_fileonly='cp -p'
1160 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1161 dnl random program in the current directory.
1162 if (echo >conf$$.file) 2>/dev/null; then
1163 if ln -s conf$$.file conf$$ 2>/dev/null; then
1164 if test "$opsys" = "mingw32"; then
1165 emacs_cv_ln_s_fileonly='/bin/ln -s'
1167 emacs_cv_ln_s_fileonly='ln -s'
1169 elif ln conf$$.file conf$$ 2>/dev/null; then
1170 if test "$opsys" = "mingw32"; then
1171 emacs_cv_ln_s_fileonly=/bin/ln
1173 emacs_cv_ln_s_fileonly=ln
1178 rm -f conf$$ conf$$.file])
1179 LN_S_FILEONLY=$emacs_cv_ln_s_fileonly
1181 AC_SUBST(LN_S_FILEONLY)
1184 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1185 dnl doesn't support links to directories, as in "ln file dir". But that
1186 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1187 dnl executables at "make install" time.
1188 dnl See https://lists.gnu.org/r/emacs-devel/2013-04/msg00475.html
1189 dnl for more details.
1190 if test "$opsys" = "mingw32"; then
1194 dnl On some Debian versions, "install-info" prints irritating messages
1195 dnl "This is not dpkg install-info anymore, but GNU install-info"
1196 dnl if called via an absolute file name.
1197 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1198 dnl Sadly some people may have an old ginstall-info installed on
1199 dnl non-Debian systems, so we can't use this.
1200 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1201 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1203 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1204 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1205 dnl Don't use GZIP, which is used by gzip for additional parameters.
1206 AC_PATH_PROG(GZIP_PROG, gzip)
1208 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1209 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1211 AC_CACHE_CHECK([for 'find' args to delete a file],
1212 [emacs_cv_find_delete],
1213 [if touch conftest.tmp && find conftest.tmp -delete 2>/dev/null &&
1214 test ! -f conftest.tmp
1215 then emacs_cv_find_delete="-delete"
1216 else emacs_cv_find_delete="-exec rm -f {} ';'"
1218 FIND_DELETE=$emacs_cv_find_delete
1219 AC_SUBST([FIND_DELETE])
1223 if test $opsys = gnu-linux; then
1224 if test "${SETFATTR+set}" != set; then
1225 AC_CACHE_CHECK([for setfattr],
1226 [emacs_cv_prog_setfattr],
1228 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1229 emacs_cv_prog_setfattr=yes
1231 emacs_cv_prog_setfattr=no
1233 if test "$emacs_cv_prog_setfattr" = yes; then
1234 PAXCTL_notdumped='$(SETFATTR) -n user.pax.flags -v er'
1240 AC_SUBST([SETFATTR])
1243 case $opsys,$PAXCTL_notdumped,$emacs_uname_r in
1244 gnu-linux,,* | netbsd,,[0-7].*)
1245 AC_PATH_PROG([PAXCTL], [paxctl], [],
1246 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1247 if test -n "$PAXCTL"; then
1248 if test "$opsys" = netbsd; then
1249 PAXCTL_dumped='$(PAXCTL) +a'
1250 PAXCTL_notdumped=$PAXCTL_dumped
1252 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1253 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1254 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then
1255 AC_MSG_RESULT([yes])
1260 if test -n "$PAXCTL"; then
1261 PAXCTL_dumped='$(PAXCTL) -zex'
1262 PAXCTL_notdumped='$(PAXCTL) -r'
1267 AC_SUBST([PAXCTL_dumped])
1268 AC_SUBST([PAXCTL_notdumped])
1270 ## Require makeinfo >= 4.13 (last of the 4.x series) to build the manuals.
1271 if test "${MAKEINFO:=makeinfo}" != "no"; then
1272 case `($MAKEINFO --version) 2>/dev/null` in
1273 *' (GNU texinfo) '4.1[[3-9]]* | \
1274 *' (GNU texinfo) '[[5-9]]* | \
1275 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1280 ## Makeinfo is unusual. For a released Emacs, the manuals are
1281 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1282 ## therefore in the category of "special tools" not normally required, which
1283 ## configure does not have to check for (eg autoconf itself).
1284 ## In a repository checkout on the other hand, the manuals are not included.
1285 ## So makeinfo is a requirement to build from the repository, and configure
1286 ## should test for it as it does for any other build requirement.
1287 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1288 ## with pre-built manuals, from a repository checkout.
1291 if test "$MAKEINFO" = "no"; then
1293 if test "x${with_makeinfo}" = "xno"; then
1295 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1296 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.13, and your
1297 source tree does not seem to have pre-built manuals in the 'info' directory.
1298 Either install a suitable version of makeinfo, or re-run configure
1299 with the '--without-makeinfo' option to build without the manuals.] )
1302 AC_SUBST([MAKEINFO])
1303 AC_SUBST(HAVE_MAKEINFO)
1305 if test $opsys = mingw32; then
1306 DOCMISC_W32=efaq-w32
1310 AC_SUBST(DOCMISC_W32)
1312 dnl Add our options to ac_link now, after it is set up.
1314 if test x$GCC = xyes; then
1315 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1316 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1318 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1319 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1322 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1323 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1324 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1325 dnl if not built to support GNU ld.
1327 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1328 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1329 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1330 dnl Eg "make LDFLAGS=... all" could run into problems,
1331 dnl https://bugs.debian.org/684788
1332 dnl * unnecessary, since temacs is the only thing that actually needs it.
1333 dnl Indeed this is where it was originally, prior to:
1334 dnl https://lists.gnu.org/r/emacs-pretest-bug/2004-03/msg00170.html
1335 if test x$GCC = xyes; then
1336 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1338 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1341 AC_CACHE_CHECK([for -znocombreloc], [emacs_cv_znocombreloc],
1342 [late_LDFLAGS="$LDFLAGS"
1343 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1345 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1346 [emacs_cv_znocombreloc=yes], [emacs_cv_znocombreloc=no])
1348 LDFLAGS="$late_LDFLAGS"])
1350 if test x$emacs_cv_znocombreloc = xno; then
1351 LDFLAGS_NOCOMBRELOC=
1355 AC_CACHE_CHECK([whether addresses are sanitized],
1356 [emacs_cv_sanitize_address],
1359 [[#ifndef __has_feature
1360 #define __has_feature(f) 0
1362 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1364 error "Addresses are not sanitized.";
1367 [emacs_cv_sanitize_address=yes],
1368 [emacs_cv_sanitize_address=no])])
1370 dnl The function dump-emacs will not be defined and temacs will do
1371 dnl (load "loadup") automatically unless told otherwise.
1372 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1374 nacl) CANNOT_DUMP=yes ;;
1377 if test "$CANNOT_DUMP" = "yes"; then
1378 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1379 elif test "$emacs_cv_sanitize_address" = yes; then
1380 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1383 AC_SUBST(CANNOT_DUMP)
1386 UNEXEC_OBJ=unexelf.o
1388 # MSDOS uses unexcoff.o
1390 UNEXEC_OBJ=unexaix.o
1396 UNEXEC_OBJ=unexmacosx.o
1399 UNEXEC_OBJ=unexhp9k800.o
1402 UNEXEC_OBJ=unexw32.o
1405 # Use the Solaris dldump() function, called from unexsol.c, to dump
1406 # emacs, instead of the generic ELF dump code found in unexelf.c.
1407 # The resulting binary has a complete symbol table, and is better
1408 # for debugging and other observability tools (debuggers, pstack, etc).
1410 # It is likely that dldump() works with older Solaris too, but this has
1411 # not been tested, so for now this change is for Solaris 10 or newer.
1412 UNEXEC_OBJ=unexsol.o
1415 test "$CANNOT_DUMP" = "yes" && UNEXEC_OBJ=
1420 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1421 ## The system compiler, GCC, has apparently been modified to not
1422 ## look there, contrary to what a stock GCC would do.
1423 ### It's not our place to do this. See bug#10313#17.
1424 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1429 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1430 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1434 ### It's not our place to do this. See bug#10313#17.
1435 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1440 ## Han Boetes <han@boetes.org> says this is necessary,
1441 ## otherwise Emacs dumps core on elf systems.
1442 LD_SWITCH_SYSTEM="-Z"
1445 AC_SUBST(LD_SWITCH_SYSTEM)
1447 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1449 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1450 ## which has not been defined yet. When this was handled with cpp,
1451 ## it was expanded to null when configure sourced the s/*.h file.
1452 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1453 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1454 ## (or somesuch), but because it is supposed to go at the _front_
1455 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1456 ## Compare with the gnu-linux case below, which added to the end
1457 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1458 ## LD_SWITCH_SYSTEM_TEMACS.
1461 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1468 AC_CHECK_DECL([__ELF__])
1469 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1470 ## With ELF, make sure that all common symbols get allocated to in the
1471 ## data section. Otherwise, the dump of temacs may miss variables in
1472 ## the shared library that have been initialized. For example, with
1473 ## GNU libc, __malloc_initialized would normally be resolved to the
1474 ## shared library's .bss section, which is fatal.
1475 if test "x$GCC" = "xyes"; then
1476 C_SWITCH_MACHINE="-fno-common"
1478 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1481 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1482 dnl albeit under the mistaken assumption that said file
1483 dnl was no longer used.
1484 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1488 AC_SUBST(C_SWITCH_MACHINE)
1490 AC_SUBST(UNEXEC_OBJ)
1493 ## Some programs in src produce warnings saying certain subprograms
1494 ## are too complex and need a MAXMEM value greater than 2000 for
1495 ## additional optimization. --nils@exp-math.uni-essen.de
1496 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1497 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1498 if test "$opsys" = "mingw32"; then
1499 case "$canonical" in
1500 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1501 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1504 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1505 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1506 AC_SUBST(C_SWITCH_SYSTEM)
1511 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1512 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1514 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1516 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1518 qnxnto) LIBS_SYSTEM="-lsocket" ;;
1520 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1522 ## Motif needs -lgen.
1523 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1526 AC_SUBST(LIBS_SYSTEM)
1528 ### Make sure subsequent tests use flags consistent with the build flags.
1530 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1531 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1533 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1536 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1537 AC_DEFUN([AC_TYPE_SIZE_T])
1538 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1539 AC_DEFUN([AC_TYPE_UID_T])
1541 # sqrt and other floating-point functions such as fmod and frexp
1542 # are found in -lm on many systems.
1544 AC_SEARCH_LIBS([sqrt], [m])
1545 if test "X$LIBS" = "X$OLD_LIBS"; then
1548 LIB_MATH=$ac_cv_search_sqrt
1552 dnl Current possibilities handled by sed (aix4-2 -> aix,
1553 dnl gnu-linux -> gnu/linux, etc.):
1554 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux.
1555 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1556 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1563 ## Adding -lm confuses the dynamic linker, so omit it.
1566 freebsd | dragonfly )
1567 SYSTEM_TYPE=berkeley-unix
1569 gnu-linux | gnu-kfreebsd )
1571 hpux10-20 | hpux11 )
1575 SYSTEM_TYPE=windows-nt
1577 dnl NB this may be adjusted below.
1579 SYSTEM_TYPE=berkeley-unix
1583 SYSTEM_TYPE=usg-unix-v
1589 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1590 [The type of system you are compiling for; sets 'system-type'.])
1591 AC_SUBST([SYSTEM_TYPE])
1594 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1595 pre_PKG_CONFIG_LIBS=$LIBS
1597 PKG_PROG_PKG_CONFIG(0.9.0)
1599 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1600 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1601 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1602 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1603 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1604 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1606 AC_DEFUN([EMACS_CHECK_MODULES],
1607 [PKG_CHECK_MODULES([$1], [$2],
1608 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1609 m4_default([$3], [HAVE_$1=yes])],
1610 [m4_default([$4], [HAVE_$1=no])])])
1613 if test "${with_sound}" != "no"; then
1614 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1615 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1616 have_sound_header=yes, [], [
1618 #define WIN32_LEAN_AND_MEAN
1619 #include <windows.h>
1622 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1623 AC_MSG_ERROR([OSS sound support requested but not found.])
1625 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1626 # Emulation library used on NetBSD.
1627 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1628 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1629 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1630 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1631 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1635 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1637 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1638 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1639 if test $HAVE_ALSA = yes; then
1640 SAVE_CFLAGS="$CFLAGS"
1642 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1643 LIBS="$ALSA_LIBS $LIBS"
1644 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1645 emacs_alsa_normal=yes,
1646 emacs_alsa_normal=no)
1647 if test "$emacs_alsa_normal" != yes; then
1648 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1649 [[snd_lib_error_set_handler (0);]])],
1650 emacs_alsa_subdir=yes,
1651 emacs_alsa_subdir=no)
1652 if test "$emacs_alsa_subdir" != yes; then
1653 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1655 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1658 CFLAGS="$SAVE_CFLAGS"
1660 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1661 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1662 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1663 elif test "${with_sound}" = "alsa"; then
1664 AC_MSG_ERROR([ALSA sound support requested but not found.])
1666 fi dnl with_sound = alsa|yes
1668 dnl Define HAVE_SOUND if we have sound support. We know it works and
1669 dnl compiles only on the specified platforms. For others, it
1670 dnl probably doesn't make sense to try.
1671 dnl FIXME So surely we should bypass this whole section if not using
1672 dnl one of these platforms?
1673 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1675 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1676 dnl Adjust the --with-sound help text if you change this.
1677 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1678 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1684 AC_SUBST(CFLAGS_SOUND)
1687 dnl checks for header files
1688 AC_CHECK_HEADERS_ONCE(
1695 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1697 AC_CACHE_CHECK([for ADDR_NO_RANDOMIZE],
1698 [emacs_cv_personality_addr_no_randomize],
1700 [AC_LANG_PROGRAM([[#include <sys/personality.h>]],
1701 [[personality (personality (0xffffffff)
1702 | ADDR_NO_RANDOMIZE)]])],
1703 [emacs_cv_personality_addr_no_randomize=yes],
1704 [emacs_cv_personality_addr_no_randomize=no])])
1705 if test $emacs_cv_personality_addr_no_randomize = yes; then
1706 AC_DEFINE([HAVE_PERSONALITY_ADDR_NO_RANDOMIZE], [1],
1707 [Define to 1 if personality flag ADDR_NO_RANDOMIZE exists.])
1710 # Note that Solaris has sys/sysinfo.h which defines struct
1711 # sysinfo as well. To make sure that we're using GNU/Linux
1712 # sysinfo, we explicitly set one of its fields.
1713 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1714 AC_CACHE_CHECK([if Linux sysinfo may be used], [emacs_cv_linux_sysinfo],
1715 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1716 [[struct sysinfo si;
1719 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)])
1721 if test $emacs_cv_linux_sysinfo = yes; then
1722 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1723 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1724 [[struct sysinfo si; return si.mem_unit]])],
1725 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1726 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1730 dnl On Solaris 8 there's a compilation warning for term.h because
1731 dnl it doesn't define 'bool'.
1732 AC_CHECK_HEADERS(term.h, , , -)
1734 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1736 if test $ac_cv_have_decl_sys_siglist != yes; then
1737 # For Tru64, at least:
1738 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1743 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1744 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1745 #if HAVE_SYS_SOCKET_H
1746 #include <sys/socket.h>
1748 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1749 #if HAVE_SYS_SOCKET_H
1750 #include <sys/socket.h>
1752 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1753 #if HAVE_SYS_SOCKET_H
1754 #include <sys/socket.h>
1757 dnl checks for structure members
1758 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1759 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1760 struct ifreq.ifr_addr,
1761 struct ifreq.ifr_addr.sa_len], , ,
1762 [AC_INCLUDES_DEFAULT
1763 #if HAVE_SYS_SOCKET_H
1764 #include <sys/socket.h>
1770 dnl Check for endianness.
1771 dnl AC_C_BIGENDIAN is done by gnulib.
1773 dnl check for Make feature
1776 AUTODEPEND_PARENTS='lib src'
1777 dnl check if we have GCC and autodepend is on.
1778 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1779 AC_CACHE_CHECK([whether gcc understands -MMD -MF], [emacs_cv_autodepend],
1780 [SAVE_CFLAGS="$CFLAGS"
1781 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1782 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1783 [emacs_cv_autodepend=yes], [emacs_cv_autodepend=no])
1784 CFLAGS="$SAVE_CFLAGS"
1785 test -f deps.d || emacs_cv_autodepend=no
1787 if test $emacs_cv_autodepend = yes; then
1791 AC_SUBST(AUTO_DEPEND)
1793 #### Choose a window system.
1795 ## We leave window_system equal to none if
1796 ## we end up building without one. Any new window system should
1797 ## set window_system to an appropriate value and add objects to
1798 ## window-system-specific substs.
1802 if test "$no_x" != yes; then
1806 LD_SWITCH_X_SITE_RPATH=
1807 if test "${x_libraries}" != NONE; then
1808 if test -n "${x_libraries}"; then
1809 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1810 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1811 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1814 x_default_search_path=""
1815 x_search_path=${x_libraries}
1816 if test -z "${x_search_path}"; then
1817 x_search_path=/usr/lib
1819 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1820 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1822 ${x_library}/X11/%L/%T/%N%C%S:\
1823 ${x_library}/X11/%l/%T/%N%C%S:\
1824 ${x_library}/X11/%T/%N%C%S:\
1825 ${x_library}/X11/%L/%T/%N%S:\
1826 ${x_library}/X11/%l/%T/%N%S:\
1827 ${x_library}/X11/%T/%N%S"
1828 if test x"${x_default_search_path}" = x; then
1829 x_default_search_path=${x_search_path}
1831 x_default_search_path="${x_search_path}:${x_default_search_path}"
1835 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1837 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1838 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1841 if test x"${x_includes}" = x; then
1842 bitmapdir=/usr/include/X11/bitmaps
1844 # accumulate include directories that have X11 bitmap subdirectories
1846 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1847 if test -d "${bmd}/X11/bitmaps"; then
1848 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1850 if test -d "${bmd}/bitmaps"; then
1851 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1854 bitmapdir=${bmd_acc#:}
1857 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1859 NS_GNUSTEP_CONFIG=no
1862 tmp_CPPFLAGS="$CPPFLAGS"
1863 tmp_CFLAGS="$CFLAGS"
1864 CPPFLAGS="$CPPFLAGS -x objective-c"
1865 CFLAGS="$CFLAGS -x objective-c"
1868 if test "${with_ns}" != no; then
1869 if test "${opsys}" = darwin; then
1871 ns_appdir=`pwd`/nextstep/Emacs.app
1872 ns_appbindir=${ns_appdir}/Contents/MacOS
1873 ns_appresdir=${ns_appdir}/Contents/Resources
1874 ns_appsrc=Cocoa/Emacs.base
1875 ns_fontfile=macfont.o
1876 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1878 NS_GNUSTEP_CONFIG=yes
1879 GNU_OBJC_CFLAGS=$flags
1880 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1881 elif test -f $GNUSTEP_CONFIG_FILE; then
1883 dnl FIXME sourcing this several times in subshells seems inefficient.
1884 GNUSTEP_SYSTEM_HEADERS=$(
1885 . $GNUSTEP_CONFIG_FILE
1886 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1888 GNUSTEP_SYSTEM_LIBRARIES=$(
1889 . $GNUSTEP_CONFIG_FILE
1890 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1892 dnl I seemed to need these as well with GNUstep-startup 0.25.
1893 GNUSTEP_LOCAL_HEADERS=$(
1894 . $GNUSTEP_CONFIG_FILE
1895 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1897 GNUSTEP_LOCAL_LIBRARIES=$(
1898 . $GNUSTEP_CONFIG_FILE
1899 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1901 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1902 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1903 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1904 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1905 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1906 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1907 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1908 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1909 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1910 dnl If they had chosen to either define it or not, we could have
1911 dnl just used AC_CHECK_DECL here.
1912 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1913 emacs_cv_objc_exceptions,
1914 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1915 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1919 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1920 if test $emacs_cv_objc_exceptions = yes; then
1921 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1922 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1923 [Define if GNUstep uses ObjC exceptions.])
1924 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1927 if test $NS_IMPL_GNUSTEP = yes; then
1928 ns_appdir=`pwd`/nextstep/Emacs.app
1929 ns_appbindir=${ns_appdir}
1930 ns_appresdir=${ns_appdir}/Resources
1931 ns_appsrc=GNUstep/Emacs.base
1932 ns_fontfile=nsfont.o
1935 dnl This is only used while we test the NS headers, it gets reset below.
1936 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1937 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1939 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1940 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1941 are required for a Nextstep build are missing or cannot be compiled.
1942 Either fix this, or re-configure with the option '--without-ns'.])])
1945 if test "${NS_IMPL_COCOA}" = "yes"; then
1946 AC_MSG_CHECKING([for Mac OS X 10.6 or newer])
1947 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1949 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1950 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1953 error "Mac OS X 10.6 or newer required";
1957 ns_osx_have_106=yes,
1959 AC_MSG_RESULT([$ns_osx_have_106])
1961 if test $ns_osx_have_106 = no; then
1962 AC_MSG_ERROR([Mac OS X 10.6 or newer is required]);
1967 AC_SUBST(LIBS_GNUSTEP)
1969 INSTALL_ARCH_INDEP_EXTRA=install-etc
1970 ns_self_contained=no
1973 if test "${HAVE_NS}" = yes; then
1974 if test "$with_toolkit_scroll_bars" = "no"; then
1975 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1978 window_system=nextstep
1979 # set up packaging dirs
1980 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1981 ns_self_contained=yes
1982 prefix=${ns_appresdir}
1983 exec_prefix=${ns_appbindir}
1984 dnl This one isn't really used, only archlibdir is.
1985 libexecdir="\${ns_appbindir}/libexec"
1986 archlibdir="\${ns_appbindir}/libexec"
1987 etcdocdir="\${ns_appresdir}/etc"
1988 etcdir="\${ns_appresdir}/etc"
1989 dnl FIXME maybe set datarootdir instead.
1990 dnl That would also get applications, icons, man.
1991 infodir="\${ns_appresdir}/info"
1992 mandir="\${ns_appresdir}/man"
1993 lispdir="\${ns_appresdir}/lisp"
1994 test "$locallisppathset" = no && locallisppath=""
1995 INSTALL_ARCH_INDEP_EXTRA=
1998 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
2000 CFLAGS="$tmp_CFLAGS"
2001 CPPFLAGS="$tmp_CPPFLAGS"
2002 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
2003 AC_SUBST(ns_self_contained)
2005 AC_SUBST(NS_OBJC_OBJ)
2007 if test "${HAVE_NS}" = yes; then
2009 [if the Objective C compiler supports instancetype],
2010 [emacs_cv_objc_instancetype],
2011 [AC_LANG_PUSH([Objective C])
2013 [AC_LANG_SOURCE([[@interface Test
2014 + (instancetype)test;
2016 emacs_cv_objc_instancetype=yes,
2017 emacs_cv_objc_instancetype=no)
2018 AC_LANG_POP([Objective C])])
2020 if test x$emacs_cv_objc_instancetype = xyes ; then
2021 AC_DEFINE(NATIVE_OBJC_INSTANCETYPE, 1,
2022 [Define if ObjC compiler supports instancetype natively.])
2034 if test "${with_w32}" != no; then
2037 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
2038 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
2039 cannot be found.])])
2042 ## Using --with-w32 with MinGW is a no-op, but we allow it.
2045 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
2050 if test "${opsys}" = "mingw32"; then
2051 AC_CACHE_CHECK([whether Windows API headers are recent enough], [emacs_cv_w32api],
2052 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2053 #include <windows.h>
2054 #include <usp10.h>]],
2055 [[PIMAGE_NT_HEADERS pHeader;
2056 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
2057 [emacs_cv_w32api=yes], [emacs_cv_w32api=no])])
2058 if test "${emacs_cv_w32api}" = "no"; then
2059 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
2061 HAVE_W32=${emacs_cv_w32api}
2071 if test "${HAVE_W32}" = "yes"; then
2072 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
2073 if test "$with_toolkit_scroll_bars" = "no"; then
2074 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
2076 AC_CHECK_TOOL(WINDRES, [windres],
2077 [AC_MSG_ERROR([No resource compiler found.])])
2078 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
2079 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
2080 EMACSRES="emacs.res"
2081 case "$canonical" in
2082 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
2083 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
2085 dnl Construct something of the form "24,4,0,0" with 4 components.
2086 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
2088 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
2089 AC_SUBST(comma_version)
2090 AC_SUBST(comma_space_version)
2091 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
2092 if test "${opsys}" = "cygwin"; then
2093 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lusp10 -lgdi32"
2094 W32_LIBS="$W32_LIBS -lole32 -lcomdlg32 -lcomctl32 -lwinspool"
2095 # Tell the linker that emacs.res is an object (which we compile from
2096 # the rc file), not a linker script.
2097 W32_RES_LINK="-Wl,emacs.res"
2099 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
2100 W32_LIBS="$W32_LIBS -lwinmm -lusp10 -lgdi32 -lcomdlg32"
2101 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32"
2102 W32_RES_LINK="\$(EMACSRES)"
2103 CLIENTRES="emacsclient.res"
2104 CLIENTW="emacsclientw\$(EXEEXT)"
2105 FIRSTFILE_OBJ=firstfile.o
2108 LIBS_ECLIENT="-lcomctl32"
2109 LIB_WSOCK32="-lwsock32"
2110 NTLIB="ntlib.$ac_objext"
2111 XARGS_LIMIT="-s 10000"
2117 AC_SUBST(EMACS_MANIFEST)
2120 AC_SUBST(W32_RES_LINK)
2121 AC_SUBST(FIRSTFILE_OBJ)
2124 AC_SUBST(LIBS_ECLIENT)
2125 AC_SUBST(LIB_WSOCK32)
2127 AC_SUBST(XARGS_LIMIT)
2129 if test "${HAVE_W32}" = "yes"; then
2134 ## $window_system is now set to the window system we will
2142 case "${window_system}" in
2147 case "${with_x_toolkit}" in
2148 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2149 motif ) USE_X_TOOLKIT=MOTIF ;;
2151 term_header=gtkutil.h
2152 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2153 dnl USE_X_TOOLKIT is set.
2154 USE_X_TOOLKIT=none ;;
2155 gtk2 ) with_gtk2=yes
2156 term_header=gtkutil.h
2157 USE_X_TOOLKIT=none ;;
2158 gtk3 ) with_gtk3=yes
2159 term_header=gtkutil.h
2160 USE_X_TOOLKIT=none ;;
2161 no ) USE_X_TOOLKIT=none ;;
2162 dnl If user did not say whether to use a toolkit, make this decision later:
2163 dnl use the toolkit if we have gtk, or X11R5 or newer.
2164 * ) USE_X_TOOLKIT=maybe ;;
2168 term_header=nsterm.h
2171 term_header=w32term.h
2175 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2176 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2177 if test "$HAVE_XSERVER" = true ||
2178 test -n "$DISPLAY" ||
2180 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2181 test "$emacs_libX11" != '/usr/lib/libX11.*'
2184 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2185 were found. You should install the relevant development files for X
2186 and for the toolkit you want, such as Gtk+ or Motif. Also make
2187 sure you have development files for image handling, i.e.
2188 tiff, gif, jpeg, png and xpm.
2189 If you are sure you want Emacs compiled without X window support, pass
2195 # Does the opsystem file prohibit the use of the GNU malloc?
2196 # Assume not, until told otherwise.
2200 [whether malloc is Doug Lea style],
2201 [emacs_cv_var_doug_lea_malloc],
2202 [emacs_cv_var_doug_lea_malloc=no
2203 dnl Hooks do not work with address sanitization.
2204 if test "$emacs_cv_sanitize_address" != yes; then
2207 [[#include <malloc.h>
2208 static void hook (void) {}]],
2209 [[malloc_set_state (malloc_get_state ());
2210 __after_morecore_hook = hook;
2211 __malloc_initialize_hook = hook;]])],
2212 [emacs_cv_var_doug_lea_malloc=yes])
2214 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2219 test "$CANNOT_DUMP" = yes ||
2221 ## darwin ld insists on the use of malloc routines in the System framework.
2222 darwin | mingw32 | nacl | sol2-10) ;;
2223 cygwin | qnxnto | freebsd)
2226 *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
2229 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2230 && test "${UNEXEC_OBJ}" = unexelf.o; then
2236 if test "${system_malloc}" = "yes"; then
2237 AC_DEFINE([SYSTEM_MALLOC], 1,
2238 [Define to 1 to use the system memory allocator, even if it is not
2242 (The GNU allocators don't work with this system configuration.)"
2244 elif test "$hybrid_malloc" = yes; then
2245 AC_DEFINE(HYBRID_MALLOC, 1,
2246 [Define to use gmalloc before dumping and the system malloc after.])
2249 GNU_MALLOC_reason=" (only before dumping)"
2250 GMALLOC_OBJ=gmalloc.o
2253 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2254 VMLIMIT_OBJ=vm-limit.o
2256 AC_CHECK_HEADERS([sys/vlimit.h])
2257 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2260 [[extern char data_start[]; char ch;]],
2261 [[return data_start < &ch;]])],
2262 [emacs_cv_data_start=yes],
2263 [emacs_cv_data_start=no])])
2264 if test $emacs_cv_data_start = yes; then
2265 AC_DEFINE([HAVE_DATA_START], 1,
2266 [Define to 1 if data_start is the address of the start
2267 of the main data segment.])
2270 AC_SUBST([HYBRID_MALLOC])
2271 AC_SUBST(GMALLOC_OBJ)
2272 AC_SUBST(VMLIMIT_OBJ)
2274 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2275 if test "$GNU_MALLOC" = yes ; then
2277 (Using Doug Lea's new malloc from the GNU C Library.)"
2279 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2280 [Define to 1 if the system memory allocator is Doug Lea style,
2281 with malloc hooks and malloc_set_state.])
2283 ## Use mmap directly for allocating larger buffers.
2284 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2285 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2286 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2288 mingw32|gnu*) REL_ALLOC=no ;;
2292 if test x"${REL_ALLOC}" = x; then
2293 REL_ALLOC=${GNU_MALLOC}
2296 use_mmap_for_buffers=no
2298 mingw32) use_mmap_for_buffers=yes ;;
2302 if test $use_mmap_for_buffers = yes; then
2303 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2307 LIBS="$LIBS_SYSTEM $LIBS"
2309 dnl FIXME replace main with a function we actually want from this library.
2310 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2312 dnl Check for the POSIX thread library.
2314 AC_CHECK_HEADERS_ONCE(pthread.h)
2315 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2316 AC_CACHE_CHECK([for pthread library],
2317 [emacs_cv_pthread_lib],
2318 [emacs_cv_pthread_lib=no
2320 for emacs_pthread_lib in 'none needed' -lpthread; do
2321 case $emacs_pthread_lib in
2322 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2326 [[#include <pthread.h>
2328 sigset_t old_mask, new_mask;
2329 void noop (void) {}]],
2330 [[pthread_t th = pthread_self ();
2332 status += pthread_create (&th, 0, 0, 0);
2333 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2334 status += pthread_kill (th, 0);
2335 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2336 || defined DOUG_LEA_MALLOC)
2337 /* Test for pthread_atfork only if gmalloc uses it,
2338 as older-style hosts like MirBSD 10 lack it. */
2339 status += pthread_atfork (noop, noop, noop);
2342 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2344 if test "$emacs_cv_pthread_lib" != no; then
2348 if test "$emacs_cv_pthread_lib" != no; then
2349 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2350 case $emacs_cv_pthread_lib in
2351 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2353 ac_cv_func_pthread_sigmask=yes
2354 # Some systems optimize for single-threaded programs by default, and
2355 # need special flags to disable these optimizations. For example, the
2356 # definition of 'errno' in <errno.h>.
2359 AC_DEFINE([_REENTRANT], 1,
2360 [Define to 1 if your system requires this in multithreaded code.]);;
2362 AC_DEFINE([_THREAD_SAFE], 1,
2363 [Define to 1 if your system requires this in multithreaded code.]);;
2367 AC_SUBST([LIB_PTHREAD])
2369 AC_MSG_CHECKING([for thread support])
2371 if test "$with_threads" = yes; then
2372 if test "$emacs_cv_pthread_lib" != no; then
2373 AC_DEFINE(THREADS_ENABLED, 1,
2374 [Define to 1 if you want elisp thread support.])
2376 elif test "${opsys}" = "mingw32"; then
2377 dnl MinGW can do native Windows threads even without pthreads
2378 AC_DEFINE(THREADS_ENABLED, 1,
2379 [Define to 1 if you want elisp thread support.])
2383 AC_MSG_RESULT([$threads_enabled])
2385 dnl Check for need for bigtoc support on IBM AIX
2389 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2391 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2392 *) gdb_cv_bigtoc=-bbigtoc ;;
2395 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2396 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2401 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2402 # is for the tests that follow. We set them back later on.
2404 REAL_CFLAGS="$CFLAGS"
2405 REAL_CPPFLAGS="$CPPFLAGS"
2408 if test "${HAVE_X11}" = "yes"; then
2409 DEFS="$C_SWITCH_X_SITE $DEFS"
2410 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2412 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2413 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2415 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2416 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2417 # but it's more convenient here to set LD_RUN_PATH since this
2418 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2419 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2420 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2424 if test "${opsys}" = "gnu-linux"; then
2425 AC_CACHE_CHECK([whether X on GNU/Linux needs -b to link], [emacs_cv_b_link],
2426 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2427 [[XOpenDisplay ("foo");]])],
2428 [xgnu_linux_first_failure=no],
2429 [xgnu_linux_first_failure=yes])
2430 if test "${xgnu_linux_first_failure}" = "yes"; then
2431 OLD_CPPFLAGS="$CPPFLAGS"
2433 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2434 LIBS="$LIBS -b i486-linuxaout"
2435 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2436 [[XOpenDisplay ("foo");]])],
2437 [xgnu_linux_second_failure=no],
2438 [xgnu_linux_second_failure=yes])
2439 if test "${xgnu_linux_second_failure}" = "yes"; then
2440 # If we get the same failure with -b, there is no use adding -b.
2441 # So leave it out. This plays safe.
2446 CPPFLAGS=$OLD_CPPFLAGS
2451 if test "x$emacs_cv_b_link" = xyes ; then
2452 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2453 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2457 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2458 # header files included from there.
2459 AC_CACHE_CHECK([for Xkb], [emacs_cv_xkb],
2460 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2461 #include <X11/XKBlib.h>]],
2462 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2463 emacs_cv_xkb=yes, emacs_cv_xkb=no)])
2464 if test $emacs_cv_xkb = yes; then
2465 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2468 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2469 XScreenNumberOfScreen)
2472 if test "${window_system}" = "x11"; then
2473 AC_MSG_CHECKING(X11 version 6)
2474 AC_CACHE_VAL(emacs_cv_x11_version_6,
2475 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2476 [[#if XlibSpecificationRelease < 6
2479 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2480 if test $emacs_cv_x11_version_6 = yes; then
2481 AC_MSG_RESULT(6 or newer)
2482 AC_DEFINE(HAVE_X11R6, 1,
2483 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2484 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2485 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2489 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2490 [Define if you have usable X11R6-style XIM support.])
2494 AC_MSG_RESULT(before 6)
2499 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2501 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2502 if test "${with_rsvg}" != "no"; then
2503 RSVG_REQUIRED=2.11.0
2504 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2506 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2507 AC_SUBST(RSVG_CFLAGS)
2510 if test $HAVE_RSVG = yes; then
2511 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2512 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2513 # Windows loads librsvg dynamically
2514 if test "${opsys}" = "mingw32"; then
2522 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2523 if test "${with_imagemagick}" != "no"; then
2524 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2525 ## 6.8.2 makes Emacs crash; see Bug#13867.
2526 ## 7 and later have not been ported to; See Bug#25967.
2527 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2 Wand < 7"
2528 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2530 if test $HAVE_IMAGEMAGICK = yes; then
2533 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2534 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2535 AC_CHECK_FUNCS([MagickRelinquishMemory MagickExportImagePixels \
2536 MagickMergeImageLayers MagickAutoOrientImage])
2539 # Check that ImageMagick links. It does not link on Fedora 25
2540 # with './configure CC=clang', as pkg-config outputs flags like
2541 # -lomp that work for GCC but not Clang.
2542 if test "$ac_cv_func_MagickRelinquishMemory" != yes; then
2546 if test $HAVE_IMAGEMAGICK = yes; then
2547 AC_DEFINE([HAVE_IMAGEMAGICK], 1, [Define to 1 if using ImageMagick.])
2552 AC_SUBST([IMAGEMAGICK_CFLAGS])
2553 AC_SUBST([IMAGEMAGICK_LIBS])
2557 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2558 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2559 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2560 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2561 GETADDRINFO_A_LIBS="-lanl"
2562 AC_SUBST(GETADDRINFO_A_LIBS)
2567 gtk_term_header=$term_header
2570 if test "${opsys}" != "mingw32"; then
2571 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2574 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2576 dnl Checks for libraries.
2577 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2578 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2579 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2580 AC_MSG_ERROR($GTK_PKG_ERRORS)
2582 if test "$pkg_check_gtk" = "yes"; then
2583 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2584 GTK_OBJ=emacsgtkfixed.o
2585 gtk_term_header=gtkutil.h
2586 USE_GTK_TOOLKIT="GTK3"
2587 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2588 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2589 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2590 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2591 [Define to 1 to disable Glib deprecation warnings.])
2595 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2599 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2602 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2604 dnl Checks for libraries.
2605 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2606 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2607 if test "$pkg_check_gtk" = "no" &&
2608 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2610 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2612 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2619 if test x"$pkg_check_gtk" = xyes; then
2622 CFLAGS="$CFLAGS $GTK_CFLAGS"
2623 LIBS="$GTK_LIBS $LIBS"
2624 dnl Try to compile a simple GTK program.
2625 AC_CACHE_CHECK([whether GTK compiles], [emacs_cv_gtk_compiles],
2628 [[/* Check the Gtk and Glib APIs. */
2629 #include <gtk/gtk.h>
2630 #include <glib-object.h>
2632 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2636 GtkSettings *gs = 0;
2637 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2638 strict C prohibits this. Use gtk_main_iteration to test that the
2639 libraries are there. */
2640 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2641 0, 0, 0, G_CALLBACK (callback), 0))
2642 gtk_main_iteration ();
2644 [emacs_cv_gtk_compiles=yes], [emacs_cv_gtk_compiles=no])])
2645 if test "${emacs_cv_gtk_compiles}" != "yes"; then
2647 if test "$USE_X_TOOLKIT" != "maybe"; then
2648 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2651 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2653 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2654 GTK_OBJ="gtkutil.o $GTK_OBJ"
2655 term_header=$gtk_term_header
2657 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2658 closing open displays. This is no problem if you just use
2659 one display, but if you use more than one and close one of them
2661 See https://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2668 if test "${HAVE_GTK}" = "yes"; then
2670 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2671 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2672 if test "$with_toolkit_scroll_bars" != no; then
2673 with_toolkit_scroll_bars=yes
2676 dnl Check if we have the old file selection dialog declared and
2677 dnl in the link library. In 2.x it may be in the library,
2678 dnl but not declared if deprecated featured has been selected out.
2679 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2680 HAVE_GTK_FILE_SELECTION=no
2681 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2682 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2683 #include <gtk/gtk.h>])
2684 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2685 AC_CHECK_FUNCS(gtk_file_selection_new)
2688 dnl Same as above for gtk_handle_box.
2689 HAVE_GTK_HANDLE_BOX=no
2690 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2691 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2692 #include <gtk/gtk.h>])
2693 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2694 AC_CHECK_FUNCS(gtk_handle_box_new)
2697 dnl Same as above for gtk_tearoff_menu_item.
2698 HAVE_GTK_TEAROFF_MENU_ITEM=no
2699 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2700 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2701 #include <gtk/gtk.h>])
2702 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2703 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2706 dnl Check for functions introduced in 2.14 and later.
2707 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2708 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2709 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2710 gtk_orientable_set_orientation \
2711 gtk_window_set_has_resize_grip)
2713 term_header=gtkutil.h
2717 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2720 if test "$with_xwidgets" != "no"; then
2721 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2722 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2724 WEBKIT_REQUIRED=2.12
2725 WEBKIT_MODULES="webkit2gtk-4.0 >= $WEBKIT_REQUIRED"
2726 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2727 HAVE_XWIDGETS=$HAVE_WEBKIT
2728 test $HAVE_XWIDGETS = yes ||
2729 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2731 XWIDGETS_OBJ=xwidget.o
2732 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2734 AC_SUBST(XWIDGETS_OBJ)
2739 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2740 dnl other platforms.
2743 if test "${with_dbus}" = "yes"; then
2744 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2745 if test "$HAVE_DBUS" = yes; then
2746 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2747 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2748 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2751 LIBS="$LIBS $DBUS_LIBS"
2752 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2753 dbus_type_is_valid \
2754 dbus_validate_bus_name \
2755 dbus_validate_path \
2756 dbus_validate_interface \
2757 dbus_validate_member)
2762 AC_SUBST(DBUS_CFLAGS)
2766 dnl GSettings has been tested under GNU/Linux only.
2768 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2769 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2770 if test "$HAVE_GSETTINGS" = "yes"; then
2772 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2774 LIBS="$LIBS $GSETTINGS_LIBS"
2775 AC_CACHE_CHECK([whether GSettings is in gio], [emacs_cv_gsettings_in_gio],
2778 [[/* Check that gsettings really is present. */
2779 #include <glib-object.h>
2780 #include <gio/gio.h>
2783 GSettings *settings;
2784 GVariant *val = g_settings_get_value (settings, "");
2786 [emacs_cv_gsettings_in_gio=yes], [emacs_cv_gsettings_in_gio=no])])
2788 if test "$emacs_cv_gsettings_in_gio" = "yes"; then
2789 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2790 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2791 SETTINGS_LIBS="$GSETTINGS_LIBS"
2792 test "$with_gconf" = "yes" || with_gconf=no
2799 dnl GConf has been tested under GNU/Linux only.
2800 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2802 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" != "no"; then
2803 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2804 if test "$HAVE_GCONF" = yes; then
2805 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2806 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2807 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2808 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2812 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2813 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2814 if test "$HAVE_GOBJECT" = "yes"; then
2815 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2816 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2818 SAVE_CFLAGS="$CFLAGS"
2820 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2821 LIBS="$SETTINGS_LIBS $LIBS"
2822 CFLAGS="$SAVE_CFLAGS"
2825 AC_SUBST(SETTINGS_CFLAGS)
2826 AC_SUBST(SETTINGS_LIBS)
2829 dnl SELinux is available for GNU/Linux only.
2832 if test "${with_selinux}" = "yes"; then
2833 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2834 if test "$HAVE_LIBSELINUX" = yes; then
2835 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2836 LIBSELINUX_LIBS=-lselinux
2839 AC_SUBST(LIBSELINUX_LIBS)
2842 if test "${with_gnutls}" = "yes" ; then
2843 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.12.2],
2844 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2845 if test "${HAVE_GNUTLS}" = "yes"; then
2846 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2849 # Windows loads GnuTLS dynamically
2850 if test "${opsys}" = "mingw32"; then
2855 AC_SUBST(LIBGNUTLS_LIBS)
2856 AC_SUBST(LIBGNUTLS_CFLAGS)
2859 if test "${with_libsystemd}" = "yes" ; then
2860 dnl This code has been tested with libsystemd 222 and later.
2861 dnl FIXME: Find the earliest version number for which Emacs should work,
2862 dnl and change '222' to that number.
2863 EMACS_CHECK_MODULES([LIBSYSTEMD], [libsystemd >= 222],
2864 [HAVE_LIBSYSTEMD=yes], [HAVE_LIBSYSTEMD=no])
2865 if test "${HAVE_LIBSYSTEMD}" = "yes"; then
2866 AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Define if using libsystemd.])
2870 AC_SUBST(LIBSYSTEMD_LIBS)
2871 AC_SUBST(LIBSYSTEMD_CFLAGS)
2876 dnl MS Windows native file monitor is available for mingw32 only.
2877 case $with_file_notification,$opsys in
2879 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2880 this is only supported on MS-Windows native and MinGW32 builds.
2881 Consider using gfile instead.])
2883 w32,* | yes,mingw32)
2884 AC_CHECK_HEADER(windows.h)
2885 if test "$ac_cv_header_windows_h" = yes ; then
2886 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2887 NOTIFY_OBJ=w32notify.o
2888 NOTIFY_SUMMARY="yes (w32)"
2892 dnl inotify is available only on GNU/Linux.
2893 case $with_file_notification,$NOTIFY_OBJ in
2895 AC_CHECK_HEADER(sys/inotify.h)
2896 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2897 AC_CHECK_FUNC(inotify_init1)
2898 if test "$ac_cv_func_inotify_init1" = yes; then
2899 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2900 NOTIFY_OBJ=inotify.o
2901 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2906 dnl kqueue is available on BSD-like systems.
2907 case $with_file_notification,$NOTIFY_OBJ in
2909 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2910 if test "$HAVE_KQUEUE" = "yes"; then
2911 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2912 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2913 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2914 NOTIFY_LIBS=$KQUEUE_LIBS
2916 NOTIFY_SUMMARY="yes -lkqueue"
2918 AC_SEARCH_LIBS(kqueue, [])
2919 if test "$ac_cv_search_kqueue" != no; then
2920 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2922 NOTIFY_SUMMARY="yes (kqueue)"
2927 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2928 dnl has been added in glib 2.24. It has been tested under
2930 case $with_file_notification,$NOTIFY_OBJ in
2932 if test "${HAVE_NS}" = yes; then
2933 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2934 Consider kqueue instead.])
2936 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2937 if test "$HAVE_GFILENOTIFY" = "yes"; then
2938 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2939 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2940 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2941 NOTIFY_OBJ=gfilenotify.o
2942 NOTIFY_SUMMARY="yes -lgio (gfile)"
2947 case $with_file_notification,$NOTIFY_OBJ in
2948 yes,* | no,* | *,?*) ;;
2949 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2952 if test -n "$NOTIFY_OBJ"; then
2953 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2955 AC_SUBST(NOTIFY_CFLAGS)
2956 AC_SUBST(NOTIFY_LIBS)
2957 AC_SUBST(NOTIFY_OBJ)
2959 dnl Do not put whitespace before the #include statements below.
2960 dnl Older compilers (eg sunos4 cc) choke on it.
2963 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2964 if test "$with_xaw3d" != no; then
2965 AC_CACHE_VAL(emacs_cv_xaw3d,
2966 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2967 #include <X11/Intrinsic.h>
2968 #include <X11/Xaw3d/Simple.h>]],
2970 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2971 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2972 emacs_cv_xaw3d=no)])
2976 if test $emacs_cv_xaw3d = yes; then
2977 AC_MSG_CHECKING(for xaw3d)
2978 AC_MSG_RESULT([yes; using Lucid toolkit])
2982 AC_DEFINE(HAVE_XAW3D, 1,
2983 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2985 AC_MSG_CHECKING(for xaw3d)
2987 AC_MSG_CHECKING(for libXaw)
2988 AC_CACHE_VAL(emacs_cv_xaw,
2989 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2990 #include <X11/Intrinsic.h>
2991 #include <X11/Xaw/Simple.h>]],
2995 if test $emacs_cv_xaw = yes; then
2996 AC_MSG_RESULT([yes; using Lucid toolkit])
2999 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
3000 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
3002 AC_MSG_ERROR([No X toolkit could be found.
3003 If you are sure you want Emacs compiled without an X toolkit, pass
3005 to configure. Otherwise, install the development libraries for the toolkit
3006 that you want to use (e.g. Gtk+) and re-run configure.])
3011 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
3015 if test "${USE_X_TOOLKIT}" != "none"; then
3016 AC_MSG_CHECKING(X11 toolkit version)
3017 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
3018 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
3019 [[#if XtSpecificationRelease < 6
3022 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
3023 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
3024 if test $emacs_cv_x11_toolkit_version_6 = yes; then
3025 AC_MSG_RESULT(6 or newer)
3026 AC_DEFINE(HAVE_X11XTR6, 1,
3027 [Define to 1 if you have the X11R6 or newer version of Xt.])
3028 LIBXTR6="-lSM -lICE"
3030 ## Use libw.a along with X11R6 Xt.
3031 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
3034 AC_MSG_RESULT(before 6)
3037 dnl If using toolkit, check whether libXmu.a exists.
3038 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
3040 if test x$HAVE_X11XTR6 = xyes; then
3041 OTHERLIBS='-lXt -lSM -lICE'
3045 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
3046 if test "X$LIBS" != "X$OLDLIBS"; then
3047 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
3050 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
3056 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3057 # OpenMotif may be installed in such a way on some GNU/Linux systems.
3058 if test -d /usr/include/openmotif; then
3059 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
3060 emacs_cv_openmotif=yes
3061 case "$canonical" in
3062 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
3063 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
3066 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
3069 emacs_cv_openmotif=no
3071 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
3072 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
3073 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
3076 Motif version prior to 2.1.
3078 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
3079 if test $emacs_cv_motif_version_2_1 = yes; then
3080 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
3081 if test x$emacs_cv_openmotif = xyes; then
3082 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
3085 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
3086 # We put this in CFLAGS temporarily to precede other -I options
3087 # that might be in CFLAGS temporarily.
3088 # We put this in CPPFLAGS where it precedes the other -I options.
3089 OLD_CPPFLAGS=$CPPFLAGS
3091 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
3092 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
3093 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
3095 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
3096 if test $emacs_cv_lesstif = yes; then
3097 # Make sure this -I option remains in CPPFLAGS after it is set
3098 # back to REAL_CPPFLAGS.
3099 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
3100 # have those other -I options anyway. Ultimately, having this
3101 # directory ultimately in CPPFLAGS will be enough.
3102 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
3103 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
3106 CPPFLAGS=$OLD_CPPFLAGS
3109 AC_CHECK_HEADER([Xm/BulletinB.h], [],
3110 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
3113 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
3114 dnl using Motif or Xaw3d is available, and unless
3115 dnl --with-toolkit-scroll-bars=no was specified.
3117 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
3118 [Define to 1 if we should use toolkit scroll bars.])dnl
3119 USE_TOOLKIT_SCROLL_BARS=no
3120 if test "${with_toolkit_scroll_bars}" != "no"; then
3121 if test "${USE_X_TOOLKIT}" != "none"; then
3122 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
3123 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3125 USE_TOOLKIT_SCROLL_BARS=yes
3126 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
3127 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3128 USE_TOOLKIT_SCROLL_BARS=yes
3130 elif test "${HAVE_GTK}" = "yes"; then
3131 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3132 USE_TOOLKIT_SCROLL_BARS=yes
3133 elif test "${HAVE_NS}" = "yes"; then
3134 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3135 USE_TOOLKIT_SCROLL_BARS=yes
3136 elif test "${HAVE_W32}" = "yes"; then
3137 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
3138 USE_TOOLKIT_SCROLL_BARS=yes
3142 dnl See if XIM is available.
3143 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3144 #include <X11/Xlib.h>
3145 #include <X11/Xresource.h>]],
3146 [[XIMProc callback;]])],
3148 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3151 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3153 if test "${with_xim}" != "no"; then
3154 AC_DEFINE(USE_XIM, 1,
3155 [Define to 1 if we should use XIM, if it is available.])
3159 if test "${HAVE_XIM}" != "no"; then
3161 if test "$GCC" = yes; then
3162 CFLAGS="$CFLAGS --pedantic-errors"
3164 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3165 #include <X11/Xlib.h>
3166 #include <X11/Xresource.h>]],
3172 XPointer *client_data;
3174 /* If we're not using GCC, it's probably not XFree86, and this is
3175 probably right, but we can't use something like --pedantic-errors. */
3176 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3177 char*, XIMProc, XPointer*);
3179 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3181 [emacs_cv_arg6_star=yes])
3182 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3183 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3184 either XPointer or XPointer*.])dnl
3185 if test "$emacs_cv_arg6_star" = yes; then
3186 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3188 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3193 ### Start of font-backend (under any platform) section.
3194 # (nothing here yet -- this is a placeholder)
3195 ### End of font-backend (under any platform) section.
3197 ### Start of font-backend (under X11) section.
3198 if test "${HAVE_X11}" = "yes"; then
3199 ## Use -lXft if available, unless '--with-xft=no'.
3201 if test "x${with_x}" = "xno"; then
3205 if test "$with_xft" != no; then
3206 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3207 with_xft=$HAVE_FONTCONFIG
3210 if test "x${with_xft}" != "xno"; then
3212 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3213 ## Because xterm.c uses XRenderQueryExtension when XFT is
3214 ## enabled, we also need to link to -lXrender.
3216 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3217 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3218 OLD_CPPFLAGS="$CPPFLAGS"
3219 OLD_CFLAGS="$CFLAGS"
3221 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3222 CFLAGS="$CFLAGS $XFT_CFLAGS"
3223 XFT_LIBS="-lXrender $XFT_LIBS"
3224 LIBS="$XFT_LIBS $LIBS"
3225 AC_CHECK_HEADER(X11/Xft/Xft.h,
3226 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3227 [[#include <X11/X.h>]])
3229 if test "${HAVE_XFT}" = "yes"; then
3230 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3232 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3233 fi # "${HAVE_XFT}" = "yes"
3234 CPPFLAGS=$OLD_CPPFLAGS
3238 # Make sure XFT is disabled if we found XFT but not XRender
3240 fi # "$HAVE_XFT" != no
3241 fi # "x${with_xft}" != "xno"
3243 ## We used to allow building with FreeType and without Xft.
3244 ## However, the ftx font backend driver is not in good shape.
3245 if test "$HAVE_XFT" != "yes"; then
3246 dnl For the "Does Emacs use" message at the end.
3250 dnl Strict linkers fail with
3251 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3252 dnl if -lfreetype is not specified.
3253 dnl The following is needed to set FREETYPE_LIBS.
3254 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3256 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3260 if test "${HAVE_FREETYPE}" = "yes"; then
3261 AC_DEFINE(HAVE_FREETYPE, 1,
3262 [Define to 1 if using the freetype and fontconfig libraries.])
3263 if test "${with_libotf}" != "no"; then
3264 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3265 if test "$HAVE_LIBOTF" = "yes"; then
3266 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3267 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3268 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3269 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3270 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3271 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3272 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3276 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3277 dnl Does the new font backend require it, or can it work without it?
3281 if test "${HAVE_LIBOTF}" = yes; then
3282 if test "${with_m17n_flt}" != "no"; then
3283 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3284 if test "$HAVE_M17N_FLT" = "yes"; then
3285 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3296 ### End of font-backend (under X11) section.
3298 AC_SUBST(FREETYPE_CFLAGS)
3299 AC_SUBST(FREETYPE_LIBS)
3300 AC_SUBST(FONTCONFIG_CFLAGS)
3301 AC_SUBST(FONTCONFIG_LIBS)
3302 AC_SUBST(LIBOTF_CFLAGS)
3303 AC_SUBST(LIBOTF_LIBS)
3304 AC_SUBST(M17N_FLT_CFLAGS)
3305 AC_SUBST(M17N_FLT_LIBS)
3308 if test "${HAVE_X11}" = "yes"; then
3309 if test "${with_cairo}" != "no"; then
3310 CAIRO_REQUIRED=1.12.0
3311 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3312 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3313 if test $HAVE_CAIRO = yes; then
3314 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3316 AC_MSG_ERROR([cairo requested but not found.])
3319 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3320 LIBS="$LIBS $CAIRO_LIBS"
3321 AC_SUBST(CAIRO_CFLAGS)
3322 AC_SUBST(CAIRO_LIBS)
3326 if test "${HAVE_X11}" = "yes"; then
3327 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3328 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3329 if test "${HAVE_XCB}" = "yes"; then
3330 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3331 if test "${HAVE_X11_XCB}" = "yes"; then
3332 AC_DEFINE(USE_XCB, 1,
3333 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3334 X11/XCB programming.])
3335 XCB_LIBS="-lX11-xcb -lxcb"
3341 ### Use -lXpm if available, unless '--with-xpm=no'.
3342 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3343 ### The Cygwin-w32 build uses <noX/xpm.h> instead of <X11/xpm.h>, so
3344 ### we need to set LDFLAGS accordingly.
3347 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3348 if test "${with_xpm}" != "no"; then
3349 SAVE_LDFLAGS="$LDFLAGS"
3350 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3351 AC_CHECK_HEADER(noX/xpm.h,
3352 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3353 if test "${HAVE_XPM}" = "yes"; then
3354 AC_CACHE_CHECK([for XpmReturnAllocPixels preprocessor define],
3355 [emacs_cv_cpp_xpm_return_alloc_pixels],
3356 [AC_EGREP_CPP(no_return_alloc_pixels,
3357 [#include "noX/xpm.h"
3358 #ifndef XpmReturnAllocPixels
3359 no_return_alloc_pixels
3361 ], emacs_cv_cpp_xpm_return_alloc_pixels=no,
3362 emacs_cv_cpp_xpm_return_alloc_pixels=yes)])
3364 if test "$emacs_cv_cpp_xpm_return_alloc_pixels" = "no"; then
3366 LDFLAGS="$SAVE_LDFLAGS"
3371 if test "${HAVE_XPM}" = "yes"; then
3372 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3377 if test "${HAVE_X11}" = "yes"; then
3378 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3379 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3381 if test "${with_xpm}" != "no"; then
3382 AC_CHECK_HEADER(X11/xpm.h,
3383 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3384 if test "${HAVE_XPM}" = "yes"; then
3385 AC_CACHE_CHECK([for XpmReturnAllocPixels preprocessor define],
3386 [emacs_cv_cpp_xpm_return_alloc_pixels],
3387 [AC_EGREP_CPP(no_return_alloc_pixels,
3388 [#include "X11/xpm.h"
3389 #ifndef XpmReturnAllocPixels
3390 no_return_alloc_pixels
3392 ], emacs_cv_cpp_xpm_return_alloc_pixels=no,
3393 emacs_cv_cpp_xpm_return_alloc_pixels=yes)])
3395 if test "$emacs_cv_cpp_xpm_return_alloc_pixels" = "no"; then
3401 if test "${HAVE_XPM}" = "yes"; then
3402 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3404 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3405 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3410 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3411 ### slightly different requirements wrt image libraries (it doesn't
3412 ### use -lXpm because it loads the xpm shared library dynamically at
3414 if test "${opsys}" = "mingw32"; then
3415 if test "${with_xpm}" != "no"; then
3416 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3420 if test "${HAVE_XPM}" = "yes"; then
3421 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3427 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3430 if test "${with_jpeg}" != "no"; then
3431 AC_CACHE_CHECK([for jpeglib 6b or later],
3434 for emacs_cv_jpeglib in yes -ljpeg no; do
3435 case $emacs_cv_jpeglib in
3438 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3442 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3443 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3444 #include <jpeglib.h>
3446 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3447 struct jpeg_decompress_struct cinfo;
3450 jpeg_create_decompress (&cinfo);
3451 WARNMS (&cinfo, JWRN_JPEG_EOF);
3452 jpeg_destroy_decompress (&cinfo);
3454 [emacs_link_ok=yes],
3457 test $emacs_link_ok = yes && break
3459 if test "$emacs_cv_jpeglib" != no; then
3461 AC_DEFINE([HAVE_JPEG], 1,
3462 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3463 ### mingw32 doesn't use -ljpeg, since it loads the library
3464 ### dynamically when needed, and doesn't want a run-time
3465 ### dependency on the jpeglib DLL.
3466 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3467 && LIBJPEG=$emacs_cv_jpeglib
3474 if test "${with_lcms2}" != "no"; then
3476 AC_SEARCH_LIBS([cmsCreateTransform], [lcms2], [HAVE_LCMS2=yes])
3478 case $ac_cv_search_cmsCreateTransform in
3479 -*) LIBLCMS2=$ac_cv_search_cmsCreateTransform ;;
3482 if test "${HAVE_LCMS2}" = "yes"; then
3483 AC_DEFINE([HAVE_LCMS2], 1, [Define to 1 if you have the lcms2 library (-llcms2).])
3484 ### mingw32 doesn't use -llcms2, since it loads the library dynamically.
3485 if test "${opsys}" = "mingw32"; then
3493 if test "${with_zlib}" != "no"; then
3495 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3497 case $ac_cv_search_inflateEnd in
3498 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3501 if test "${HAVE_ZLIB}" = "yes"; then
3502 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3503 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3504 if test "${opsys}" = "mingw32"; then
3510 ### Dynamic modules support
3515 cygwin|mingw32) MODULES_SUFFIX=".dll" ;;
3516 *) MODULES_SUFFIX=".so" ;;
3518 if test "${with_modules}" != "no"; then
3524 cygwin|mingw32|darwin)
3528 # BSD systems have dlopen in libc.
3529 AC_CHECK_FUNC([dlopen], [HAVE_MODULES=yes])
3533 if test "${HAVE_MODULES}" = no; then
3534 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3537 LIBS="$LIBS $LIBMODULES"
3538 AC_CHECK_FUNCS([dladdr dlfunc])
3543 if test "${HAVE_MODULES}" = yes; then
3544 MODULES_OBJ="dynlib.o emacs-module.o"
3545 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3546 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3547 [System extension for dynamic libraries])
3549 AC_SUBST(MODULES_OBJ)
3550 AC_SUBST(LIBMODULES)
3551 AC_SUBST(HAVE_MODULES)
3552 AC_SUBST(MODULES_SUFFIX)
3554 AC_CONFIG_FILES([src/emacs-module.h])
3555 AC_SUBST_FILE([module_env_snippet_25])
3556 AC_SUBST_FILE([module_env_snippet_26])
3557 module_env_snippet_25="$srcdir/src/module-env-25.h"
3558 module_env_snippet_26="$srcdir/src/module-env-26.h"
3560 ### Use -lpng if available, unless '--with-png=no'.
3564 if test "${NS_IMPL_COCOA}" = yes; then
3566 elif test "${with_png}" != no; then
3567 # mingw32 loads the library dynamically.
3568 if test "$opsys" = mingw32; then
3569 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3570 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3571 AC_MSG_CHECKING([for png])
3572 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3573 png_ldflags=`(libpng-config --ldflags) 2>&AS_MESSAGE_LOG_FD` || {
3574 # libpng-config does not work; configure by hand.
3575 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3576 # in /usr/include/libpng.
3577 if test -r /usr/include/libpng/png.h &&
3578 test ! -r /usr/include/png.h; then
3579 png_cflags=-I/usr/include/libpng
3587 CFLAGS="$CFLAGS $png_cflags"
3588 LIBS="$png_ldflags -lz -lm $LIBS"
3590 [AC_LANG_PROGRAM([[#include <png.h>]],
3591 [[return !png_get_channels (0, 0);]])],
3593 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3595 # $LIBPNG requires explicit -lz in some cases.
3596 # We don't know what those cases are, exactly, so play it safe and
3597 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3598 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3599 LIBPNG="$LIBPNG -lz"
3603 AC_MSG_RESULT([$HAVE_PNG])
3606 if test $HAVE_PNG = yes; then
3607 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3610 CFLAGS="$CFLAGS $PNG_CFLAGS"
3611 AC_CHECK_DECL([png_longjmp],
3613 [AC_DEFINE([PNG_DEPSTRUCT], [],
3614 [Define to empty to suppress deprecation warnings when building
3615 with --enable-gcc-warnings and with libpng versions before 1.5,
3616 which lack png_longjmp.])],
3622 AC_SUBST(PNG_CFLAGS)
3624 ### Use -ltiff if available, unless '--with-tiff=no'.
3625 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3628 if test "${opsys}" = "mingw32"; then
3629 if test "${with_tiff}" != "no"; then
3630 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3632 if test "${HAVE_TIFF}" = "yes"; then
3633 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3635 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3636 if test "${with_tiff}" != "no"; then
3637 AC_CHECK_HEADER(tiffio.h,
3639 # At least one tiff package requires the jpeg library.
3640 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3641 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3644 if test "${HAVE_TIFF}" = "yes"; then
3645 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3646 dnl FIXME -lz -lm, as per libpng?
3652 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3653 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3656 if test "${opsys}" = "mingw32"; then
3657 if test "${with_gif}" != "no"; then
3658 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3660 if test "${HAVE_GIF}" = "yes"; then
3661 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3663 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3664 || test "${HAVE_W32}" = "yes"; then
3665 AC_CHECK_HEADER(gif_lib.h,
3666 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3667 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3668 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3669 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3671 if test "$HAVE_GIF" = yes; then
3673 elif test "$HAVE_GIF" = maybe; then
3674 # If gif_lib.h but no libgif, try libungif.
3675 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3676 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3679 if test "${HAVE_GIF}" = "yes"; then
3680 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3685 dnl Check for required libraries.
3688 if test "${HAVE_X11}" = "yes"; then
3689 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3690 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3691 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3692 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3693 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3694 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3695 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3696 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3697 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3698 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3700 test "${with_gnutls}" != "no" && test "${HAVE_GNUTLS}" != "yes" &&
3701 MISSING="$MISSING gnutls" && WITH_NO="$WITH_NO --with-gnutls=no"
3702 if test "X${MISSING}" != X; then
3703 AC_MSG_ERROR([The following required libraries were not found:
3705 Maybe some development libraries/packages are missing?
3706 If you don't want to link with them give
3708 as options to configure])
3711 ### Use -lgpm if available, unless '--with-gpm=no'.
3714 if test "${with_gpm}" != "no"; then
3715 AC_CHECK_HEADER(gpm.h,
3716 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3718 if test "${HAVE_GPM}" = "yes"; then
3719 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3725 dnl Check for malloc/malloc.h on darwin
3726 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3729 ### Use NeXTstep API to implement GUI.
3730 if test "${HAVE_NS}" = "yes"; then
3731 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on macOS.])
3732 if test "${NS_IMPL_COCOA}" = "yes"; then
3733 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under macOS.])
3735 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3736 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3737 if test $NS_GNUSTEP_CONFIG != yes; then
3738 # See also .m.o rule in src/Makefile.in. */
3739 # FIXME: are all these flags really needed? Document here why. */
3740 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3741 ## Extra CFLAGS applied to src/*.m files.
3742 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3748 ### Use session management (-lSM -lICE) if available
3751 if test "${HAVE_X11}" = "yes"; then
3752 AC_CHECK_HEADER(X11/SM/SMlib.h,
3753 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3755 if test "${HAVE_X_SM}" = "yes"; then
3756 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3762 ### Use XRandr (-lXrandr) if available
3764 if test "${HAVE_X11}" = "yes"; then
3765 XRANDR_REQUIRED=1.2.2
3766 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3767 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3768 if test $HAVE_XRANDR = no; then
3769 # Test old way in case pkg-config doesn't have it (older machines).
3770 # Include Xrender.h by hand to work around bug in older Xrandr.h
3771 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3772 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3773 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3774 [], [AC_INCLUDES_DEFAULT
3775 #include <X11/extensions/Xrender.h>])
3776 if test $HAVE_XRANDR = yes; then
3777 XRANDR_LIBS=-lXrandr
3780 if test $HAVE_XRANDR = yes; then
3781 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3784 AC_SUBST(XRANDR_CFLAGS)
3785 AC_SUBST(XRANDR_LIBS)
3787 ### Use Xinerama (-lXinerama) if available
3789 if test "${HAVE_X11}" = "yes"; then
3790 XINERAMA_REQUIRED=1.0.2
3791 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3792 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3793 if test $HAVE_XINERAMA = no; then
3794 # Test old way in case pkg-config doesn't have it (older machines).
3795 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3796 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3797 if test $HAVE_XINERAMA = yes; then
3798 XINERAMA_LIBS=-lXinerama
3801 if test $HAVE_XINERAMA = yes; then
3802 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3805 AC_SUBST(XINERAMA_CFLAGS)
3806 AC_SUBST(XINERAMA_LIBS)
3808 ### Use Xfixes (-lXfixes) if available
3810 if test "${HAVE_X11}" = "yes"; then
3811 XFIXES_REQUIRED=4.0.0
3812 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3813 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3814 if test $HAVE_XFIXES = no; then
3815 # Test old way in case pkg-config doesn't have it (older machines).
3816 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3817 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3818 if test $HAVE_XFIXES = yes; then
3819 XFIXES_LIBS=-lXfixes
3822 if test $HAVE_XFIXES = yes; then
3823 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3826 AC_SUBST(XFIXES_CFLAGS)
3827 AC_SUBST(XFIXES_LIBS)
3829 ### Use Xdbe (-lXdbe) if available
3831 if test "${HAVE_X11}" = "yes"; then
3832 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
3833 [AC_CHECK_LIB(Xext, XdbeAllocateBackBufferName, HAVE_XDBE=yes)],
3835 [#include <X11/Xlib.h>
3837 if test $HAVE_XDBE = yes; then
3840 if test $HAVE_XDBE = yes; then
3841 AC_DEFINE(HAVE_XDBE, 1, [Define to 1 if you have the Xdbe extension.])
3844 AC_SUBST(XDBE_CFLAGS)
3847 ### Use libxml (-lxml2) if available
3848 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3850 if test "${with_xml2}" != "no"; then
3851 ### I'm not sure what the version number should be, so I just guessed.
3852 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3853 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3854 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3855 SAVE_CPPFLAGS="$CPPFLAGS"
3856 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3857 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3858 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3860 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3864 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3865 AC_CHECK_HEADER(libxml/HTMLparser.h,
3866 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3867 [#include <libxml/HTMLparser.h>])])
3868 CPPFLAGS="$SAVE_CPPFLAGS"
3869 if test "${HAVE_LIBXML2}" = "yes"; then
3870 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3871 LIBXML2_LIBS="-lxml2"
3874 if test "${HAVE_LIBXML2}" = "yes"; then
3875 if test "${opsys}" != "mingw32"; then
3876 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3881 if test "${HAVE_LIBXML2}" = "yes"; then
3882 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3889 AC_SUBST(LIBXML2_LIBS)
3890 AC_SUBST(LIBXML2_CFLAGS)
3894 if test ! "$with_mailutils"; then
3895 # Check for mail-locking functions in a "mail" library. Probably this should
3896 # have the same check as for liblockfile below.
3897 AC_CHECK_LIB([mail], [maillock], [have_mail=yes], [have_mail=no])
3898 if test $have_mail = yes; then
3900 AC_DEFINE([HAVE_LIBMAIL], [1],
3901 [Define to 1 if you have the 'mail' library (-lmail).])
3904 LIBS="$LIBS_MAIL $LIBS"
3905 AC_CHECK_FUNCS([touchlock])
3908 dnl Debian, at least:
3909 AC_CHECK_LIB([lockfile], [maillock], [have_lockfile=yes], [have_lockfile=no])
3910 if test $have_lockfile = yes; then
3911 LIBS_MAIL=-llockfile
3912 AC_DEFINE([HAVE_LIBLOCKFILE], [1],
3913 [Define to 1 if you have the 'lockfile' library (-llockfile).])
3915 # If we have the shared liblockfile, assume we must use it for mail
3916 # locking (e.g. Debian). If we couldn't link against liblockfile
3917 # (no liblockfile.a installed), ensure that we don't need to.
3918 dnl This works for files generally, not just executables.
3919 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3920 AC_CHECK_PROG([liblockfile], [liblockfile.so], [yes], [no],
3921 [/usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH])
3922 if test "$ac_cv_prog_liblockfile" = yes; then
3923 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3924 This probably means that movemail could lose mail.
3925 There may be a 'development' package to install containing liblockfile.])
3928 AC_CHECK_HEADERS([maillock.h])
3930 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3931 ## interlock access to the mail spool. The alternative is a lock file named
3932 ## /usr/spool/mail/$USER.lock.
3935 aix4-2) mail_lock="lockf" ;;
3937 gnu|freebsd|dragonfly|netbsd|openbsd|darwin) mail_lock="flock" ;;
3939 ## On GNU/Linux systems, both methods are used by various mail programs.
3940 ## I assume most people are using newer mailers that have heard of flock.
3941 ## Change this if you need to.
3942 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3943 ## configure gets the right answers, and that means *NOT* using flock.
3944 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3945 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3946 ## Debian maintainer hasn't provided a clean fix for Emacs.
3947 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3948 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3949 ## correct logic. -- fx
3950 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3951 ## liblockfile is a Free Software replacement for libmail, used on
3952 ## Debian systems and elsewhere. -rfr.
3955 if test $have_mail = yes || test $have_lockfile = yes; then
3956 test $ac_cv_header_maillock_h = yes && mail_lock=no
3960 mail_lock="none-needed" ;;
3964 flock) AC_DEFINE([MAIL_USE_FLOCK], [1],
3965 [Define if the mailer uses flock to interlock the mail spool.]);;
3967 lockf) AC_DEFINE([MAIL_USE_LOCKF], [1],
3968 [Define if the mailer uses lockf to interlock the mail spool.]);;
3972 *) BLESSMAIL_TARGET="need-blessmail" ;;
3975 AC_SUBST([BLESSMAIL_TARGET])
3976 AC_SUBST([LIBS_MAIL])
3979 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3980 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3981 getrusage get_current_dir_name \
3982 lrand48 random rint trunc \
3983 select getpagesize setlocale newlocale \
3984 getrlimit setrlimit shutdown \
3985 pthread_sigmask strsignal setitimer \
3986 sendto recvfrom getsockname getifaddrs freeifaddrs \
3988 getpwent endpwent getgrent endgrent \
3989 cfmakeraw cfsetspeed __executable_start log2 prctl)
3992 dnl No need to check for posix_memalign if aligned_alloc works.
3993 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3994 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3996 dnl Cannot use AC_CHECK_FUNCS
3997 AC_CACHE_CHECK([for __builtin_frame_address],
3998 [emacs_cv_func___builtin_frame_address],
3999 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_frame_address (0);])],
4000 [emacs_cv_func___builtin_frame_address=yes],
4001 [emacs_cv_func___builtin_frame_address=no])])
4002 if test $emacs_cv_func___builtin_frame_address = yes; then
4003 AC_DEFINE([HAVE___BUILTIN_FRAME_ADDRESS], 1,
4004 [Define to 1 if you have the '__builtin_frame_address' function.])
4006 AC_CACHE_CHECK([for __builtin_unwind_init],
4007 emacs_cv_func___builtin_unwind_init,
4008 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
4009 emacs_cv_func___builtin_unwind_init=yes,
4010 emacs_cv_func___builtin_unwind_init=no)])
4011 if test $emacs_cv_func___builtin_unwind_init = yes; then
4012 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
4013 [Define to 1 if you have the '__builtin_unwind_init' function.])
4016 AC_CHECK_HEADERS_ONCE(sys/un.h)
4021 AC_CHECK_FUNCS(grantpt)
4023 # PTY-related GNU extensions.
4024 AC_CHECK_FUNCS(getpt posix_openpt)
4026 dnl Run a test program that contains a call to tputs, a call that is
4027 dnl never executed. This tests whether a pre-'main' dynamic linker
4028 dnl works with the library. It's too much trouble to actually call
4029 dnl tputs in the test program, due to portability hassles. When
4030 dnl cross-compiling, assume the test program will run if it links.
4031 AC_DEFUN([tputs_link_source], [
4033 [[extern void tputs (const char *, int, int (*)(int));
4034 int main (int argc, char **argv)
4037 tputs (argv[0], 0, 0);
4041 # Check this now, so that we will NOT find the above functions in ncurses.
4042 # That is because we have not set up to link ncurses in lib-src.
4043 # It's better to believe a function is not available
4044 # than to expect to find it in ncurses.
4045 # Also we need tputs and friends to be able to build at all.
4046 AC_CACHE_CHECK([for library containing tputs], [emacs_cv_tputs_lib],
4047 [if test "${opsys}" = "mingw32"; then
4048 emacs_cv_tputs_lib='none required'
4050 # curses precedes termcap because of AIX (Bug#9736#35) and OpenIndiana.
4051 for tputs_library in '' tinfo ncurses terminfo curses termcap; do
4053 if test -z "$tputs_library"; then
4054 emacs_cv_tputs_lib='none required'
4056 emacs_cv_tputs_lib=-l$tputs_library
4057 LIBS="$emacs_cv_tputs_lib $LIBS"
4059 AC_RUN_IFELSE([tputs_link_source], [], [emacs_cv_tputs_lib=no],
4060 [AC_LINK_IFELSE([tputs_link_source], [], [emacs_cv_tputs_lib=no])])
4062 if test "X$emacs_cv_tputs_lib" != Xno; then
4067 AS_CASE(["$emacs_cv_tputs_lib"],
4068 [no], [AC_MSG_ERROR([The required function 'tputs' was not found in any library.
4069 The following libraries were tried (in order):
4070 libtinfo, libncurses, libterminfo, libcurses, libtermcap
4071 Please try installing whichever of these libraries is most appropriate
4072 for your system, together with its header files.
4073 For example, a libncurses-dev(el) or similar package.])],
4074 [-l*], [LIBS_TERMCAP=$emacs_cv_tputs_lib],
4075 [*], [LIBS_TERMCAP=])
4077 ## Use termcap instead of terminfo?
4078 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
4080 ## FIXME? In the cases below where we unconditionally set
4081 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
4082 ## if that was found above to have tputs.
4083 ## Should we use the gnu* logic everywhere?
4085 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
4086 ## The ncurses library has been moved out of the System framework in
4087 ## Mac OS X 10.2. So if configure detects it, set the command-line
4088 ## option to use it.
4089 darwin) LIBS_TERMCAP="-lncurses" ;;
4091 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
4094 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
4095 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
4096 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
4097 [[#if __FreeBSD_version < 400000
4100 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
4102 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
4104 if test $emacs_cv_freebsd_terminfo = yes; then
4105 LIBS_TERMCAP="-lncurses"
4108 LIBS_TERMCAP="-ltermcap"
4118 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
4120 LIBS_TERMCAP="-ltermcap"
4124 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
4126 ## hpux: Make sure we get select from libc rather than from libcurses
4127 ## because libcurses on HPUX 10.10 has a broken version of select.
4128 ## We used to use -lc -lcurses, but this may be cleaner.
4129 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
4130 # set that way, now it uses the default). Isn't this a contradiction?
4131 hpux*) LIBS_TERMCAP="-ltermcap" ;;
4135 TERMCAP_OBJ=tparam.o
4136 if test $TERMINFO = yes; then
4137 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
4138 TERMCAP_OBJ=terminfo.o
4140 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
4141 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
4143 AC_SUBST(LIBS_TERMCAP)
4144 AC_SUBST(TERMCAP_OBJ)
4146 # GNU/Linux-specific timer functions.
4147 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
4149 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
4151 [[timerfd_create (CLOCK_REALTIME,
4152 TFD_CLOEXEC | TFD_NONBLOCK);
4153 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
4154 [emacs_cv_have_timerfd=yes],
4155 [emacs_cv_have_timerfd=no])])
4156 if test "$emacs_cv_have_timerfd" = yes; then
4157 AC_DEFINE([HAVE_TIMERFD], 1,
4158 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
4161 # Alternate stack for signal handlers.
4162 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
4163 [emacs_cv_alternate_stack],
4165 [AC_LANG_PROGRAM([[#include <signal.h>
4168 struct sigaction sa;
4169 ss.ss_sp = malloc (SIGSTKSZ);
4170 ss.ss_size = SIGSTKSZ;
4171 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
4172 sigaltstack (&ss, 0);
4173 sigaction (SIGSEGV, &sa, 0);]])],
4174 [emacs_cv_alternate_stack=yes],
4175 [emacs_cv_alternate_stack=no])])
4177 # Do we need the Hesiod library to provide the support routines?
4178 dnl FIXME? Should we be skipping this on Darwin too?
4181 if test "$with_hesiod" != no ; then
4182 # Don't set $LIBS here -- see comments above. FIXME which comments?
4184 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4185 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4186 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4187 if test "$resolv" = yes ; then
4193 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4194 hesiod=yes, :, $RESOLVLIB)])
4196 if test x"$hesiod" = xyes; then
4198 LIBRESOLV=$RESOLVLIB
4204 # These tell us which Kerberos-related libraries to use.
4211 if test "${with_kerberos}" != no; then
4213 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4214 if test $have_com_err = yes; then
4215 COM_ERRLIB=-lcom_err
4216 LIBS="$COM_ERRLIB $LIBS"
4218 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4219 if test $have_crypto = yes; then
4221 LIBS="$CRYPTOLIB $LIBS"
4223 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4224 if test $have_k5crypto = yes; then
4225 CRYPTOLIB=-lk5crypto
4226 LIBS="$CRYPTOLIB $LIBS"
4228 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4229 if test $have_krb5=yes; then
4231 LIBS="$KRB5LIB $LIBS"
4233 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4234 if test "${with_kerberos5}" = no; then
4235 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4236 if test $have_des425 = yes; then
4238 LIBS="$DESLIB $LIBS"
4240 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4241 if test $have_des = yes; then
4243 LIBS="$DESLIB $LIBS"
4246 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4247 if test $have_krb4 = yes; then
4249 LIBS="$KRB4LIB $LIBS"
4251 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4252 if test $have_krb = yes; then
4254 LIBS="$KRB4LIB $LIBS"
4259 if test "${with_kerberos5}" != no; then
4260 AC_CHECK_HEADERS(krb5.h,
4261 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4262 [#include <krb5.h>])])
4264 AC_CHECK_HEADERS(krb.h,,
4265 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4266 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4268 AC_CHECK_HEADERS(com_err.h)
4272 AC_SUBST(COM_ERRLIB)
4278 AC_CHECK_HEADERS(valgrind/valgrind.h)
4280 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4282 AC_CHECK_FUNCS_ONCE([sbrk])
4285 AC_CHECK_FUNC(socket, , ok_so_far=no)
4286 if test $ok_so_far = yes; then
4287 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4289 if test $ok_so_far = yes; then
4290 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4292 if test $ok_so_far = yes; then
4293 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4294 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4295 [Define to 1 if you have inet sockets.])
4300 AC_CHECK_FUNCS(snprintf)
4302 dnl Check for glib. This differs from other library checks in that
4303 dnl Emacs need not link to glib unless some other library is already
4304 dnl linking to glib. Although glib provides no facilities that Emacs
4305 dnl needs for its own purposes, when glib is present Emacs needs to
4306 dnl use primitives like g_main_context_query to avoid clashing with
4307 dnl glib at a low level.
4309 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4311 AC_CACHE_CHECK([whether GLib is linked in], [emacs_cv_links_glib],
4312 [OLDCFLAGS="$CFLAGS"
4314 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4315 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4316 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4317 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4318 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4321 [[g_print ("Hello world");]])],
4322 [emacs_cv_links_glib=yes],
4323 [emacs_cv_links_glib=no])
4326 if test "${emacs_cv_links_glib}" = "yes"; then
4327 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4328 if test "$HAVE_NS" = no;then
4334 dnl Adapted from Haible's version.
4335 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4336 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4337 [[char* cs = nl_langinfo(CODESET);]])],
4338 emacs_cv_langinfo_codeset=yes,
4339 emacs_cv_langinfo_codeset=no)
4341 if test $emacs_cv_langinfo_codeset = yes; then
4342 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4343 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4348 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4349 dnl how the tty code is related to POSIX and/or other versions of termios.
4350 dnl The following looks like a useful start.
4352 dnl AC_SYS_POSIX_TERMIOS
4353 dnl if test $ac_cv_sys_posix_termios = yes; then
4354 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4355 dnl and macros for terminal control.])
4356 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4359 dnl Turned on June 1996 supposing nobody will mind it.
4360 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4361 if test "${opsys}" != "mingw32"; then
4362 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4363 in the full name stands for the login id.])
4366 dnl Everybody supports this, except MS.
4367 dnl Seems like the kind of thing we should be testing for, though.
4368 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4369 if test "${opsys}" != "mingw32"; then
4370 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4373 dnl Everybody supports this, except MS-DOS.
4374 dnl Seems like the kind of thing we should be testing for, though.
4375 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4376 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4377 4.2-compatible sockets.])
4379 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4381 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4382 a null file, or a data sink.])
4383 if test "${opsys}" = "mingw32"; then
4384 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4386 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4389 if test "${opsys}" = "mingw32"; then
4394 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4395 dnl This is for MinGW, and is used in test/Makefile.in.
4396 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4397 dnl decides that a command-line argument to be passed to a MinGW program
4398 dnl is a PATH-style list of directories. But that heuristics plays it
4399 dnl safe, and only does the replacement when it is _absolutely_ sure it
4400 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4401 dnl which breaks in-tree builds. So we do this manually instead.
4402 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4403 dnl be computed as ':' in MSYS Bash.
4406 dnl Everybody supports this, except MS-DOS.
4407 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4409 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4412 AC_DEFINE(DIRECTORY_SEP, ['/'],
4413 [Character that separates directories in a file name.])
4415 if test "${opsys}" = "mingw32"; then
4416 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4417 [Returns true if character is a device separator.])
4419 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4420 [Returns true if character is a directory separator.])
4422 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4423 [Returns true if character is any form of separator.])
4425 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4426 [Returns true if character is a device separator.])
4428 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4429 [Returns true if character is a directory separator.])
4431 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4432 [Returns true if character is any form of separator.])
4435 if test "$USE_X_TOOLKIT" != "none"; then
4439 dnl Assar Westerlund <assar@sics.se> says this is necessary
4440 dnl for HP-UX 10.20, and that it works for HP-UX 0 as well.
4444 if test "$have_editres" != no && test ! -z "$LIBXMU"; then
4446 dnl See libXmu.a check above.
4447 if test x$HAVE_X11XTR6 = xyes; then
4448 LIBS="-lXt -lSM -lICE $LIBXMU"
4450 OTHERLIBS="-lXt -$LIBXMU"
4453 [#include <X11/Intrinsic.h>
4454 #include <X11/Xmu/Editres.h>],
4455 [_XEditResCheckMessages (0, 0, 0, 0);],
4456 [AC_DEFINE([X_TOOLKIT_EDITRES], 1,
4457 [Define to 1 if we should use XEditRes.])])
4464 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4465 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4466 dnl need the constant to dimension an array. So wire in the appropriate
4468 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4472 emacs_broken_SIGIO=no
4475 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4476 hpux* | nacl | openbsd | sol2* | unixware )
4477 emacs_broken_SIGIO=yes
4481 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4482 dnl the way this system works, libc functions that return malloced
4483 dnl memory use the libc malloc implementation. Calling xfree or
4484 dnl xrealloc on the results of such functions results in a crash.
4486 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4487 dnl but that does not currently work on this system.
4489 dnl It is possible to completely override the malloc implementation on
4490 dnl AIX, but that involves putting the malloc functions in a shared
4491 dnl library and setting the MALLOCTYPE environment variable to point to
4492 dnl that shared library.
4494 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4495 dnl to avoid a crash just use the Emacs implementation for that function.
4497 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4498 dnl of this file, so that we do not check for get_current_dir_name
4499 dnl on AIX. But that might be fragile if something else ends
4500 dnl up testing for get_current_dir_name as a dependency.
4501 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4502 get_current_dir_name should not be used.])
4506 dnl Circumvent a bug in FreeBSD. In the following sequence of
4507 dnl writes/reads on a PTY, read(2) returns bogus data:
4509 dnl write(2) 1022 bytes
4510 dnl write(2) 954 bytes, get EAGAIN
4511 dnl read(2) 1024 bytes in process_read_output
4512 dnl read(2) 11 bytes in process_read_output
4514 dnl That is, read(2) returns more bytes than have ever been written
4515 dnl successfully. The 1033 bytes read are the 1022 bytes written
4516 dnl successfully after processing (for example with CRs added if the
4517 dnl terminal is set up that way which it is here). The same bytes will
4518 dnl be seen again in a later read(2), without the CRs.
4519 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4520 work around an issue when reading from a PTY.])
4526 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4527 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4532 darwin | dragonfly | freebsd | netbsd | openbsd )
4533 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4534 close a pty to make it a controlling terminal (it is already a
4535 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4539 dnl FIXME Surely we can test for this rather than hard-code it.
4541 netbsd | openbsd) sound_device="/dev/audio" ;;
4542 *) sound_device="/dev/dsp" ;;
4546 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4547 [Name of the default sound device.])
4550 dnl Emacs can read input using SIGIO and buffering characters itself,
4551 dnl or using CBREAK mode and making C-g cause SIGINT.
4552 dnl The choice is controlled by the variable interrupt_input.
4554 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4556 dnl Emacs uses the presence of the USABLE_SIGIO macro
4557 dnl to indicate whether or not signal-driven I/O is possible. It uses
4558 dnl INTERRUPT_INPUT to decide whether to use it by default.
4560 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4561 dnl CBREAK mode has two disadvantages
4562 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4563 dnl I hear that in system V this problem does not exist.
4564 dnl 2) Control-G causes output to be discarded.
4565 dnl I do not know whether this can be fixed in system V.
4567 dnl Another method of doing input is planned but not implemented.
4568 dnl It would have Emacs fork off a separate process
4569 dnl to read the input and send it to the true Emacs process
4572 darwin | gnu-linux | gnu-kfreebsd )
4573 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4578 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4579 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4580 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4581 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4582 dnl taking float or double parameters.
4584 cygwin|gnu|gnu-linux|gnu-kfreebsd|freebsd|netbsd|openbsd)
4585 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4586 file defines 'NeedWidePrototypes' as 'NO'.])
4591 dnl Used in process.c, this must be a loop, even if it only runs once.
4592 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4593 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4594 dnl trying suffixes 0-16.
4595 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4596 first PTY, if PTYs are supported.])
4597 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4598 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4599 end of a PTY, if non-standard.])
4600 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4601 end of a PTY, if non-standard.])
4605 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4606 dnl You allocate a pty by opening /dev/ptc to get the master side.
4607 dnl To get the name of the slave side, you just ttyname() the master side.
4608 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4609 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4613 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4614 dnl multi-line AC_DEFINEs are hard. :(
4615 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)])
4616 AC_DEFINE(PTY_NAME_SPRINTF, [])
4617 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4620 gnu | openbsd | qnxnto )
4621 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4624 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4626 if test "x$ac_cv_func_grantpt" = xyes; then
4627 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4628 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4629 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4630 dnl to prevent sigchld_handler from intercepting the child's death.
4631 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); }])
4632 dnl if HAVE_POSIX_OPENPT
4633 if test "x$ac_cv_func_posix_openpt" = xyes; then
4634 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4635 AC_DEFINE(PTY_NAME_SPRINTF, [])
4637 elif test "x$ac_cv_func_getpt" = xyes; then
4638 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4639 AC_DEFINE(PTY_NAME_SPRINTF, [])
4641 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4644 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4649 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4650 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4651 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4655 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4656 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4657 dnl from intercepting that death. If any child but grantpt's should die
4658 dnl within, it should be caught after sigrelse(2).
4659 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4660 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); }])
4664 dnl Comments are as per sol2*.
4665 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4666 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); }])
4673 dnl This change means that we don't loop through allocate_pty too
4674 dnl many times in the (rare) event of a failure.
4675 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4676 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4677 dnl Push various streams modules onto a PTY channel. Used in process.c.
4678 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.])
4683 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4684 "typing" a signal character on the pty.])
4687 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4688 aix4-2 | cygwin | gnu | dragonfly | freebsd | netbsd | openbsd | darwin )
4689 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4692 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4693 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4694 gnu-linux | gnu-kfreebsd )
4696 AC_CACHE_CHECK([for signals via characters], [emacs_cv_signals_via_chars],
4697 [AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4698 #include <linux/version.h>
4699 #if LINUX_VERSION_CODE < 0x20400
4700 # error "Linux version too old"
4702 ]], [[]])], emacs_cv_signals_via_chars=yes, emacs_cv_signals_via_chars=no)])
4704 test "$emacs_cv_signals_via_chars" = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4709 AH_TEMPLATE(TAB3, [Undocumented.])
4712 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4714 gnu | dragonfly | freebsd | netbsd | openbsd )
4715 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4716 AC_DEFINE(TAB3, OXTABS)
4719 gnu-linux | gnu-kfreebsd )
4720 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4724 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4725 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4726 [Mark a secondary stack, like the register stack on the ia64.]), [])
4730 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4731 run_time_remap; for HPUX.])
4736 dnl This won't be used automatically yet. We also need to know, at least,
4737 dnl that the stack is continuous.
4738 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4739 registers relevant for conservative garbage collection in the jmp_buf.])
4743 dnl Not all the architectures are tested, but there are Debian packages
4744 dnl for SCM and/or Guile on them, so the technique must work. See also
4745 dnl comments in alloc.c concerning setjmp and gcc.
4746 dnl Fixme: it's probably safe to just use the GCC conditional below.
4747 gnu-linux | gnu-kfreebsd )
4748 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4749 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4750 || defined __alpha__ || defined __mips__ || defined __s390__ \
4751 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4752 || defined __ia64__ || defined __sh__
4755 # error "setjmp not known to work on this arch"
4757 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4762 if test x$GCC = xyes; then
4763 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4764 AC_DEFINE(GC_SETJMP_WORKS, 1)
4767 aix* | dragonfly | freebsd | netbsd | openbsd | sol2* )
4768 AC_DEFINE(GC_SETJMP_WORKS, 1)
4773 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4774 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4777 [[#include <setjmp.h>
4779 # define _longjmp longjmp
4784 _longjmp (j, 1);]])],
4785 [emacs_cv_func__setjmp=yes],
4786 [emacs_cv_func__setjmp=no])])
4787 if test $emacs_cv_func__setjmp = yes; then
4788 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4791 # We need to preserve signal mask to handle C stack overflows.
4792 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4795 [[#include <setjmp.h>
4798 if (! sigsetjmp (j, 1))
4799 siglongjmp (j, 1);]])],
4800 [emacs_cv_func_sigsetjmp=yes],
4801 [emacs_cv_func_sigsetjmp=no])])
4802 if test $emacs_cv_func_sigsetjmp = yes; then
4803 AC_DEFINE([HAVE_SIGSETJMP], 1,
4804 [Define to 1 if sigsetjmp and siglongjmp work.])
4807 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4808 yes,yes,* | *,*,mingw32)
4809 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4810 [Define to 1 if C stack overflow can be handled in some cases.]);;
4815 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4816 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4817 dnl and this is all we need.
4818 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4825 dnl Used in xfaces.c.
4826 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4827 some systems, where it requires time.h.])
4832 dnl Define symbols to identify the version of Unix this is.
4833 dnl Define all the symbols that apply correctly.
4834 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4835 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4836 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4837 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4842 dnl This symbol should be defined on AIX Version 3 ???????
4843 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4845 # error "_AIX not defined"
4847 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4851 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4855 dnl Not __APPLE__, as this may not be defined on non-macOS Darwin.
4856 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4857 dnl distinguish macOS from pure Darwin.
4858 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4861 gnu-linux | gnu-kfreebsd )
4863 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4868 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4872 AC_DEFINE(DOS_NT, [])
4873 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4874 if test "x$ac_enable_checking" != "x" ; then
4875 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4881 AC_DEFINE(USG5_4, [])
4882 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4887 AC_DEFINE(USG5_4, [])
4891 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4894 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4895 emacs_cv_usable_FIONREAD=no
4899 emacs_cv_usable_FIONREAD=yes
4904 [AC_LANG_PROGRAM([[#include <sys/types.h>
4905 #include <sys/ioctl.h>
4907 # include <sys/filio.h>
4910 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4911 [emacs_cv_usable_FIONREAD=yes],
4912 [emacs_cv_usable_FIONREAD=no])
4915 if test $emacs_cv_usable_FIONREAD = yes; then
4916 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4918 if test $emacs_broken_SIGIO = no; then
4919 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4921 [AC_LANG_PROGRAM([[#include <fcntl.h>
4924 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4925 [emacs_cv_usable_SIGIO=yes],
4926 [emacs_cv_usable_SIGIO=no])],
4927 [emacs_cv_usable_SIGIO=yes],
4928 [emacs_cv_usable_SIGIO=no])
4929 if test $emacs_cv_usable_SIGIO = yes; then
4930 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4937 dnl It works to open the pty's tty in the parent (Emacs), then
4938 dnl close and reopen it in the child.
4939 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4940 works to open a pty's tty in the parent process, then close and
4941 reopen it in the child.])
4945 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4950 # Set up the CFLAGS for real compilation, so we can substitute it.
4951 CFLAGS="$REAL_CFLAGS"
4952 CPPFLAGS="$REAL_CPPFLAGS"
4955 ## Hack to detect a buggy GCC version.
4956 if test "$GCC" = yes && \
4957 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4959 *-fno-optimize-sibling-calls*) ;;
4961 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4965 version=$PACKAGE_VERSION
4967 copyright="Copyright (C) 2018 Free Software Foundation, Inc."
4968 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4969 [Short copyright string for this version of Emacs.])
4972 ### Specify what sort of things we'll be editing into Makefile and config.h.
4973 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4975 AC_SUBST(configuration)
4980 AC_SUBST(exec_prefix)
4983 AC_SUBST(sharedstatedir)
4984 AC_SUBST(libexecdir)
4988 AC_SUBST(standardlisppath)
4989 AC_SUBST(locallisppath)
4991 AC_SUBST(x_default_search_path)
4993 AC_SUBST(archlibdir)
4999 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
5000 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
5001 ## end of LIBX_BASE, but nothing ever set it.
5002 AC_SUBST(LD_SWITCH_X_SITE)
5003 AC_SUBST(C_SWITCH_X_SITE)
5004 AC_SUBST(GNUSTEP_CFLAGS)
5006 ## Used in lwlib/Makefile.in.
5007 AC_SUBST(X_TOOLKIT_TYPE)
5009 AC_SUBST(ns_appbindir)
5010 AC_SUBST(ns_appresdir)
5012 AC_SUBST(GNU_OBJC_CFLAGS)
5013 AC_SUBST(OTHER_FILES)
5015 if test -n "${term_header}"; then
5016 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
5017 [Define to the header for the built-in window system.])
5020 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
5021 [Define to the canonical Emacs configuration name.])
5022 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
5023 [Define to the options passed to configure.])
5028 if test "${HAVE_X_WINDOWS}" = "yes" ; then
5029 AC_DEFINE(HAVE_X_WINDOWS, 1,
5030 [Define to 1 if you want to use the X window system.])
5032 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
5034 if test "$HAVE_CAIRO" = "yes"; then
5035 FONT_OBJ="ftfont.o ftcrfont.o"
5036 elif test "$HAVE_XFT" = "yes"; then
5037 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
5038 elif test "$HAVE_FREETYPE" = "yes"; then
5039 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
5049 if test "${USE_X_TOOLKIT}" != "none" ; then
5051 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
5052 if test "${USE_X_TOOLKIT}" = "LUCID"; then
5053 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
5054 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
5055 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
5059 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
5060 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
5064 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
5065 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
5066 MOTIF_LIBW="MOTIF_LIBW -lXimp"
5070 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
5071 MOTIF_LIBW="$MOTIF_LIBW -li18n"
5074 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
5077 AC_SUBST(WIDGET_OBJ)
5080 case "$USE_X_TOOLKIT" in
5081 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
5082 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
5083 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
5085 if test "$HAVE_XWIDGETS" = "yes"; then
5086 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
5088 AC_SUBST(TOOLKIT_LIBW)
5090 if test "${opsys}" != "mingw32"; then
5091 if test "$USE_X_TOOLKIT" = "none"; then
5092 LIBXT_OTHER="\$(LIBXSM)"
5094 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
5097 AC_SUBST(LIBXT_OTHER)
5099 if test "${HAVE_X11}" = "yes" ; then
5100 AC_DEFINE(HAVE_X11, 1,
5101 [Define to 1 if you want to use version 11 of X windows.])
5102 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5106 AC_SUBST(LIBX_OTHER)
5109 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5111 elif test "$USE_X_TOOLKIT" = none; then
5113 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5114 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS oldXMenu"
5116 LIBXMENU='$(lwlibdir)/liblw.a'
5117 AUTODEPEND_PARENTS="$AUTODEPEND_PARENTS lwlib"
5121 if test "${GNU_MALLOC}" = "yes" ; then
5122 AC_DEFINE(GNU_MALLOC, 1,
5123 [Define to 1 if you want to use the GNU memory allocator.])
5127 if test "${REL_ALLOC}" = "yes" ; then
5128 AC_DEFINE(REL_ALLOC, 1,
5129 [Define REL_ALLOC if you want to use the relocating allocator for
5132 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5134 AC_SUBST(RALLOC_OBJ)
5136 if test "$opsys" = "cygwin"; then
5137 CYGWIN_OBJ="cygw32.o"
5138 ## Cygwin differs because of its unexec().
5140 POST_ALLOC_OBJ=lastfile.o
5141 elif test "$opsys" = "mingw32"; then
5144 POST_ALLOC_OBJ=lastfile.o
5147 PRE_ALLOC_OBJ=lastfile.o
5150 AC_SUBST(CYGWIN_OBJ)
5151 AC_SUBST(PRE_ALLOC_OBJ)
5152 AC_SUBST(POST_ALLOC_OBJ)
5154 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5155 dnl verbatim defined above. The tricky name is apropos, as this hack
5156 dnl makes Fortify go sour!
5157 AH_VERBATIM([FORTIFY_SOUR],
5158 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5159 The workaround disables some useful run-time checking, so it
5160 should be conditional to the platforms with the performance bug.
5161 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5162 #if defined __APPLE__ && defined __GNUC__
5163 # ifndef _DONT_USE_CTYPE_INLINE_
5164 # define _DONT_USE_CTYPE_INLINE_
5166 # ifndef _FORTIFY_SOURCE
5167 # define _FORTIFY_SOURCE 0
5172 # If user asks to omit features, disable optional features that gnulib
5173 # might otherwise enable.
5174 if test "$with_features" = no && test "$enable_acl" != yes; then
5178 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5179 # it temporarily reverts them to their pre-pkg-config values,
5180 # because gnulib needs to work with both src (which uses the
5181 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5182 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5183 # and it therefore needs to run in an environment where LIBS does not
5184 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5185 # for some package unrelated to lib-src.
5188 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5189 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5190 gl_ASSERT_NO_GNULIB_POSIXCHECK
5191 gl_ASSERT_NO_GNULIB_TESTS
5196 if test "${opsys}" = "mingw32"; then
5197 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5198 # Remove unneeded switches from the value of CC that goes to Makefiles
5199 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5203 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5205 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5208 ## The -headerpad option tells ld (see man page) to leave room at the
5209 ## end of the header for adding load commands. Needed for dumping.
5210 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5211 ## architecture (where they are 78 bytes each). The actual number of
5212 ## load commands added is not consistent but normally ranges from
5213 ## about 14 to about 34. Setting it high gets us plenty of slop and
5214 ## only costs about 1.5K of wasted binary space.
5215 headerpad_extra=1000
5216 if test "$HAVE_NS" = "yes"; then
5217 libs_nsgui="-framework AppKit"
5218 if test "$NS_IMPL_COCOA" = "yes"; then
5219 libs_nsgui="$libs_nsgui -framework IOKit"
5224 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5226 ## This is here because src/Makefile.in did some extra fiddling around
5227 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5228 ## LD_SWITCH_SYSTEM_TEMACS instead,
5229 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5230 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5233 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5234 ## find X at run-time.
5235 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5236 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5237 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5238 ## had different values in configure (in ac_link) and src/Makefile.in.
5239 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5240 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5243 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5244 case "$canonical" in
5245 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5246 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5250 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5253 # -no-pie or -nopie fixes a temacs segfault on Gentoo, OpenBSD,
5254 # Ubuntu, and other systems with "hardened" GCC configurations for
5255 # some reason (Bug#18784). We don't know why this works, but not
5256 # segfaulting is better than segfaulting. Use ac_c_werror_flag=yes
5257 # when trying the option, otherwise clang keeps warning that it does
5258 # not understand it, and pre-4.6 GCC has a similar problem
5259 # (Bug#20338). Prefer -no-pie to -nopie, as -no-pie is the
5260 # spelling used by GCC 6.1.0 and later (Bug#24682).
5262 [for $CC option to disable position independent executables],
5263 [emacs_cv_prog_cc_no_pie],
5264 [emacs_save_c_werror_flag=$ac_c_werror_flag
5265 emacs_save_LDFLAGS=$LDFLAGS
5266 ac_c_werror_flag=yes
5267 for emacs_cv_prog_cc_no_pie in -no-pie -nopie no; do
5268 test $emacs_cv_prog_cc_no_pie = no && break
5269 LDFLAGS="$emacs_save_LDFLAGS $emacs_cv_prog_cc_no_pie"
5270 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [break])
5272 ac_c_werror_flag=$emacs_save_c_werror_flag
5273 LDFLAGS=$emacs_save_LDFLAGS])
5274 if test "$emacs_cv_prog_cc_no_pie" != no; then
5275 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS $emacs_cv_prog_cc_no_pie"
5278 if test x$ac_enable_profiling != x ; then
5280 *freebsd | gnu-linux) ;;
5281 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5285 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5287 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5289 ## Common for all window systems
5290 if test "$window_system" != "none"; then
5291 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5292 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5293 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5296 AC_SUBST(WINDOW_SYSTEM_OBJ)
5298 AH_TOP([/* GNU Emacs site configuration template file.
5300 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2018
5301 Free Software Foundation, Inc.
5303 This file is part of GNU Emacs.
5305 GNU Emacs is free software: you can redistribute it and/or modify
5306 it under the terms of the GNU General Public License as published by
5307 the Free Software Foundation, either version 3 of the License, or (at
5308 your option) any later version.
5310 GNU Emacs is distributed in the hope that it will be useful,
5311 but WITHOUT ANY WARRANTY; without even the implied warranty of
5312 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5313 GNU General Public License for more details.
5315 You should have received a copy of the GNU General Public License
5316 along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
5319 /* No code in Emacs #includes config.h twice, but some bits of code
5320 intended to work with other packages as well (like gmalloc.c)
5321 think they can include it as many times as they like. */
5322 #ifndef EMACS_CONFIG_H
5323 #define EMACS_CONFIG_H
5326 AH_BOTTOM([#include <conf_post.h>
5328 #endif /* EMACS_CONFIG_H */
5337 #### Report on what we decided to do.
5338 #### Report GTK as a toolkit, even if it doesn't use Xt.
5339 #### It makes printing result more understandable as using GTK sets
5340 #### toolkit_scroll_bars to yes by default.
5341 if test "${HAVE_GTK}" = "yes"; then
5342 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5345 if test $USE_ACL -ne 0; then
5346 ACL_SUMMARY="yes $LIB_ACL"
5351 emacs_standard_dirs='Standard dirs'
5353 Configured for '${canonical}'.
5355 Where should the build process find the source code? ${srcdir}
5356 What compiler should emacs be built with? ${CC} ${CFLAGS}
5357 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5358 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5359 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5360 What window system should Emacs use? ${window_system}
5361 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5362 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5363 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5366 emacs_config_features=
5367 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5368 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5369 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT OLDXMENU X11 NS MODULES \
5370 THREADS XWIDGETS LIBSYSTEMD CANNOT_DUMP LCMS2; do
5373 CANNOT_DUMP) eval val=\${$opt} ;;
5374 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5375 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5376 THREADS) val=${threads_enabled} ;;
5377 *) eval val=\${HAVE_$opt} ;;
5380 xno|xnone|x) continue ;;
5385 GTK*|LUCID|MOTIF) opt=$val ;;
5390 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5393 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5394 [Summary of some of the main features enabled by configure.])
5396 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5397 Does Emacs use -lXpm? ${HAVE_XPM}
5398 Does Emacs use -ljpeg? ${HAVE_JPEG}
5399 Does Emacs use -ltiff? ${HAVE_TIFF}
5400 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5401 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5402 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5403 Does Emacs use cairo? ${HAVE_CAIRO}
5404 Does Emacs use -llcms2? ${HAVE_LCMS2}
5405 Does Emacs use imagemagick (version 6)? ${HAVE_IMAGEMAGICK}
5406 Does Emacs support sound? ${HAVE_SOUND}
5407 Does Emacs use -lgpm? ${HAVE_GPM}
5408 Does Emacs use -ldbus? ${HAVE_DBUS}
5409 Does Emacs use -lgconf? ${HAVE_GCONF}
5410 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5411 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5412 Does Emacs use access control lists? ${ACL_SUMMARY}
5413 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5414 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5415 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5416 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5417 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5418 Does Emacs use -lotf? ${HAVE_LIBOTF}
5419 Does Emacs use -lxft? ${HAVE_XFT}
5420 Does Emacs use -lsystemd? ${HAVE_LIBSYSTEMD}
5421 Does Emacs directly use zlib? ${HAVE_ZLIB}
5422 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5423 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5424 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5425 Does Emacs have threading support in lisp? ${threads_enabled}
5428 if test -n "${EMACSDATA}"; then
5429 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5431 if test -n "${EMACSDOC}"; then
5432 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5437 if test "$HAVE_NS" = "yes"; then
5439 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5440 The installed application will go to nextstep/Emacs.app and can be
5441 run or moved from there."])
5442 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5443 echo "The application will be fully self-contained."
5445 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5446 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5447 to run if these resources are not installed."])
5452 case $opsys,$emacs_uname_r in
5454 AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5459 # Remove any trailing slashes in these variables.
5461 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5463 case $exec_prefix in
5464 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5467 if test "$HAVE_NS" = "yes"; then
5468 if test "$NS_IMPL_GNUSTEP" = yes; then
5469 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5470 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5471 ns_check_file=Resources/Info-gnustep.plist
5473 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5474 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5475 ns_check_file=Contents/Info.plist
5477 AC_SUBST(ns_check_file)
5480 AC_CONFIG_FILES([Makefile lib/gnulib.mk])
5482 dnl config.status treats $srcdir specially, so I think this is ok...
5483 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5485 m4_define([subdir_makefiles],
5486 [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])
5487 SUBDIR_MAKEFILES="subdir_makefiles"
5488 AC_CONFIG_FILES(subdir_makefiles)
5490 dnl test/ is not present in release tarfiles.
5491 opt_makefile=test/Makefile
5493 if test -f "$srcdir/$opt_makefile.in"; then
5494 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5495 dnl Again, it's best not to use a variable. Though you can add
5496 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5497 AC_CONFIG_FILES([test/Makefile])
5501 dnl The admin/ directory used to be excluded from tarfiles.
5502 if test -d $srcdir/admin; then
5503 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5504 AC_CONFIG_FILES([admin/charsets/Makefile])
5505 AC_CONFIG_FILES([admin/unidata/Makefile])
5506 AC_CONFIG_FILES([admin/grammars/Makefile])
5510 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5512 AC_SUBST(SUBDIR_MAKEFILES_IN)
5514 dnl You might wonder (I did) why epaths.h is generated by running make,
5515 dnl rather than just letting configure generate it from epaths.in.
5516 dnl One reason is that the various paths are not fully expanded (see above);
5517 dnl e.g., gamedir='${localstatedir}/games/emacs'.
5518 dnl Secondly, the GNU Coding standards require that one should be able
5519 dnl to run 'make prefix=/some/where/else' and override the values set
5520 dnl by configure. This also explains the 'move-if-change' test and
5521 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5522 AC_CONFIG_COMMANDS([src/epaths.h], [
5523 if test "${opsys}" = "mingw32"; then
5524 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5526 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5527 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5528 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5530 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5531 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5533 AC_CONFIG_COMMANDS([src/.gdbinit], [
5534 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5535 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5539 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5540 dnl See comments for etc-refcards-emacsver.tex.
5541 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5542 dnl it is not quite the same. But we are generating in $srcdir.
5543 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5544 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5545 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5548 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5549 dnl then a directory etc/refcards is created in the build directory,
5550 dnl which is probably harmless, but confusing (in out-of-tree builds).
5551 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5552 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5553 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5554 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5555 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5558 if test $AUTO_DEPEND = yes; then
5559 for dir in $AUTODEPEND_PARENTS; do
5560 AS_MKDIR_P([$dir/deps])
5566 if test ! "$with_mailutils"; then
5567 if test "$with_pop" = yes; then
5568 AC_MSG_WARN([This configuration installs a 'movemail' program
5569 that retrieves POP3 email via only insecure channels.
5570 To omit insecure POP3, you can use '$0 --without-pop'.])
5571 elif test "$with_pop" = no-by-default; then
5572 AC_MSG_WARN([This configuration installs a 'movemail' program
5573 that does not retrieve POP3 email. By default, Emacs 25 and earlier
5574 installed a 'movemail' program that retrieved POP3 email via only
5575 insecure channels, a practice that is no longer recommended but that
5576 you can continue to support by using '$0 --with-pop'.])
5581 # Don't suggest GNU Mailutils, as it hasn't been ported.
5584 emacs_fix_movemail="use '$0 --with-mailutils'"
5585 case `(movemail --version) 2>/dev/null` in
5587 *) emacs_fix_movemail="install GNU Mailutils
5588 <https://mailutils.org> and $emacs_fix_movemail";;
5590 AC_MSG_NOTICE([You might want to $emacs_fix_movemail.]);;
5594 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])