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, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, 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 ${1+"$@"} 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 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
134 dnl Fairly arbitrary, older versions might work too.
135 AM_INIT_AUTOMAKE(1.11)
137 dnl Canonicalize the configuration name.
140 configuration=${host_alias-${build_alias-$host}}
142 dnl We get MINGW64 with MSYS2.
145 . $srcdir/nt/mingw-cfg.site
149 # srcdir is an absolute path. In this case, force the format
150 # "/c/foo/bar", to simplify later conversions to native Windows
151 # format ("c:/foo/bar").
152 srcdir=`cd "${srcdir}" && pwd -W`
153 srcdir="/${srcdir:0:1}${srcdir:2}"
158 dnl Support for --program-prefix, --program-suffix and
159 dnl --program-transform-name options
162 dnl It is important that variables on the RHS not be expanded here,
163 dnl hence the single quotes. This is per the GNU coding standards, see
164 dnl (autoconf) Installation Directory Variables
165 dnl See also epaths.h below.
166 lispdir='${datadir}/emacs/${version}/lisp'
167 standardlisppath='${lispdir}'
168 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
169 '${datadir}/emacs/site-lisp'
170 lisppath='${locallisppath}:${standardlisppath}'
171 etcdir='${datadir}/emacs/${version}/etc'
172 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
173 etcdocdir='${datadir}/emacs/${version}/etc'
174 gamedir='${localstatedir}/games/emacs'
176 dnl Special option to disable the most of other options.
178 [AS_HELP_STRING([--without-all],
179 [omit almost all features and build
180 small executable with minimal dependencies])],
181 [with_features=$withval],
184 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
185 dnl Create a new --with option that defaults to being disabled.
186 dnl NAME is the base name of the option. The shell variable with_NAME
187 dnl will be set to either the user's value (if the option is
188 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
189 dnl option is not specified). Note that the shell variable name is
190 dnl constructed as autoconf does, by replacing non-alphanumeric
191 dnl characters with "_".
192 dnl HELP-STRING is the help text for the option.
193 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
194 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
195 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
198 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
199 dnl Create a new --with option that defaults to $with_features.
200 dnl NAME is the base name of the option. The shell variable with_NAME
201 dnl will be set either to 'no' (for a plain --without-NAME) or to
202 dnl 'yes' (if the option is not specified). Note that the shell
203 dnl variable name is constructed as autoconf does, by replacing
204 dnl non-alphanumeric characters with "_".
205 dnl HELP-STRING is the help text for the option.
206 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
207 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
208 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
211 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
212 if test "$with_pop" = yes; then
213 AC_DEFINE(MAIL_USE_POP)
215 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
217 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
218 if test "$with_kerberos" != no; then
221 AH_TEMPLATE(KERBEROS,
222 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
224 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
225 if test "${with_kerberos5}" != no; then
226 if test "${with_kerberos}" = no; then
230 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
233 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
234 dnl FIXME hesiod support may not be present, so it seems like an error
235 dnl to define, or at least use, this unconditionally.
236 if test "$with_hesiod" != no; then
237 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
240 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
241 if test "$with_mmdf" != no; then
242 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
245 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
246 if test "$with_mail_unlink" != no; then
247 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
250 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
251 [string giving default POP mail host])],
252 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
254 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
255 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
256 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
257 [ case "${withval}" in
258 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
259 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
260 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
265 [with_sound=$with_features])
267 dnl FIXME currently it is not the last.
268 dnl This should be the last --with option, because --with-x is
269 dnl added later on when we find the file name of X, and it's best to
270 dnl keep them together visually.
271 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
272 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
273 [ case "${withval}" in
274 y | ye | yes ) val=gtk ;;
276 l | lu | luc | luci | lucid ) val=lucid ;;
277 a | at | ath | athe | athen | athena ) val=athena ;;
278 m | mo | mot | moti | motif ) val=motif ;;
279 g | gt | gtk ) val=gtk ;;
283 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
284 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
285 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
286 `athena' and `lucid' are synonyms.])
292 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
293 if test "$with_wide_int" = yes; then
294 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
297 dnl _ON results in a '--without' option in the --help output, so
298 dnl the help text should refer to "don't compile", etc.
299 with_xpm_set=${with_xpm+set}
300 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
301 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
302 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
303 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
304 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
305 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
306 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
307 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
309 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
310 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
311 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
313 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
314 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
315 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
316 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
317 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
319 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
320 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
321 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
322 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
323 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
324 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
325 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
327 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
328 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
329 [ case "${withval}" in
330 y | ye | yes ) val=yes ;;
332 g | gf | gfi | gfil | gfile ) val=gfile ;;
333 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
334 w | w3 | w32 ) val=w32 ;;
335 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
336 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
337 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
338 otherwise for the first of `gfile' or `inotify' that is usable.])
341 with_file_notification=$val
343 [with_file_notification=$with_features])
345 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
347 ## For the times when you want to build Emacs but don't have
348 ## a suitable makeinfo, and can live without the manuals.
349 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
350 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
352 ## This might be a 'configure' arg.
353 AC_SUBST([ACLOCAL_PATH])
355 ## Makefile.in needs the cache file name.
358 ## This is an option because I do not know if all info/man support
359 ## compressed files, nor how to test if they do so.
360 OPTION_DEFAULT_ON([compress-install],
361 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
362 make GZIP_PROG= install])
364 AC_ARG_WITH(gameuser,dnl
365 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
366 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
367 && gameuser="${with_gameuser}"
368 test "X$gameuser" = X && gameuser=games
370 AC_ARG_WITH([gnustep-conf],dnl
371 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
372 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
373 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
374 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
375 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
376 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
378 AC_ARG_ENABLE(ns-self-contained,
379 [AS_HELP_STRING([--disable-ns-self-contained],
380 [disable self contained build under NeXTstep])],
381 EN_NS_SELF_CONTAINED=$enableval,
382 EN_NS_SELF_CONTAINED=yes)
384 AC_ARG_ENABLE(locallisppath,
385 [AS_HELP_STRING([--enable-locallisppath=PATH],
386 [directories Emacs should search for lisp files specific
388 if test "${enableval}" = "no"; then
390 elif test "${enableval}" != "yes"; then
391 locallisppath=${enableval}
394 AC_ARG_ENABLE(checking,
395 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
396 [enable expensive run-time checks. With LIST,
397 enable only specific categories of checks.
398 Categories are: all,yes,no.
399 Flags are: stringbytes, stringoverrun, stringfreelist,
400 xmallocoverrun, conslist, glyphs])],
401 [ac_checking_flags="${enableval}"],[])
402 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
403 for check in $ac_checking_flags
406 # these set all the flags to specific states
407 yes) ac_enable_checking=1 ;;
408 no) ac_enable_checking= ;
409 ac_gc_check_stringbytes= ;
410 ac_gc_check_string_overrun= ;
411 ac_gc_check_string_free_list= ;
412 ac_xmalloc_overrun= ;
413 ac_gc_check_cons_list= ;
415 all) ac_enable_checking=1 ;
416 ac_gc_check_stringbytes=1 ;
417 ac_gc_check_string_overrun=1 ;
418 ac_gc_check_string_free_list=1 ;
419 ac_xmalloc_overrun=1 ;
420 ac_gc_check_cons_list=1 ;
422 # these enable particular checks
423 stringbytes) ac_gc_check_stringbytes=1 ;;
424 stringoverrun) ac_gc_check_string_overrun=1 ;;
425 stringfreelist) ac_gc_check_string_free_list=1 ;;
426 xmallocoverrun) ac_xmalloc_overrun=1 ;;
427 conslist) ac_gc_check_cons_list=1 ;;
428 glyphs) ac_glyphs_debug=1 ;;
429 *) AC_MSG_ERROR(unknown check category $check) ;;
434 if test x$ac_enable_checking != x ; then
435 AC_DEFINE(ENABLE_CHECKING, 1,
436 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
438 if test x$ac_gc_check_stringbytes != x ; then
439 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
440 [Define this temporarily to hunt a bug. If defined, the size of
441 strings is redundantly recorded in sdata structures so that it can
442 be compared to the sizes recorded in Lisp strings.])
444 if test x$ac_gc_check_string_overrun != x ; then
445 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
446 [Define this to check for short string overrun.])
448 if test x$ac_gc_check_string_free_list != x ; then
449 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
450 [Define this to check the string free list.])
452 if test x$ac_xmalloc_overrun != x ; then
453 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
454 [Define this to check for malloc buffer overrun.])
456 if test x$ac_gc_check_cons_list != x ; then
457 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
458 [Define this to check for errors in cons list.])
460 if test x$ac_glyphs_debug != x ; then
461 AC_DEFINE(GLYPH_DEBUG, 1,
462 [Define this to enable glyphs debugging code.])
465 AC_ARG_ENABLE(check-lisp-object-type,
466 [AS_HELP_STRING([--enable-check-lisp-object-type],
467 [enable compile time checks for the Lisp_Object data type.
468 This is useful for development for catching certain types of bugs.])],
469 if test "${enableval}" != "no"; then
470 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
471 [Define this to enable compile time checks for the Lisp_Object data type.])
475 dnl The name of this option is unfortunate. It predates, and has no
476 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
477 dnl Actually, it stops it working.
478 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
479 AC_ARG_ENABLE(profiling,
480 [AS_HELP_STRING([--enable-profiling],
481 [build emacs with low-level, gprof profiling support.
482 Mainly useful for debugging Emacs itself. May not work on
483 all platforms. Stops profiler.el working.])],
484 [ac_enable_profiling="${enableval}"],[])
485 if test x$ac_enable_profiling != x ; then
486 PROFILING_CFLAGS="-DPROFILING=1 -pg"
490 AC_SUBST(PROFILING_CFLAGS)
492 AC_ARG_ENABLE(autodepend,
493 [AS_HELP_STRING([--enable-autodepend],
494 [automatically generate dependencies to .h-files.
495 Requires gcc, enabled if found.])],
496 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
498 AC_ARG_ENABLE(gtk-deprecation-warnings,
499 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
500 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
501 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
503 dnl This used to use changequote, but, apart from `changequote is evil'
504 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
505 dnl the great gob of text. Thus it's not processed for possible expansion.
506 dnl Just make sure the brackets remain balanced.
508 dnl Since Emacs can't find matching pairs of quotes, boundaries are
509 dnl indicated by comments.
513 ### If you add support for a new configuration, add code to this
514 ### switch statement to recognize your configuration name and select
515 ### the appropriate opsys.
517 ### As far as handling version numbers on operating systems is
518 ### concerned, make sure things will fail in a fixable way. If
519 ### /etc/MACHINES doesn't say anything about version numbers, be
520 ### prepared to handle anything reasonably. If version numbers
521 ### matter, be sure /etc/MACHINES says something about it.
524 case "${canonical}" in
526 ## GNU/Linux and similar ports
541 ## FreeBSD kernel + glibc based userland
552 *-*-openbsd* | *-*-mirbsd* )
556 ## Apple Darwin / Mac OS X
558 case "${canonical}" in
565 ## Use fink packages if available.
566 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
567 ## if test -d /sw/include && test -d /sw/lib; then
568 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
569 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
578 ## HP 9000 series 700 and 800, running HP/UX
582 hppa*-hp-hpux1[1-9]* )
584 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
588 rs6000-ibm-aix4.[23]* )
591 powerpc-ibm-aix4.[23]* )
594 rs6000-ibm-aix[56]* )
597 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
601 ## Silicon Graphics machines
605 # Without defining _LANGUAGE_C, things get masked out in the headers
606 # so that, for instance, grepping for `free' in stdlib.h fails and
607 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
608 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
613 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
614 | x86_64-*-solaris2* | x86_64-*-sunos5*)
615 case "${canonical}" in
617 amd64-*-*|x86_64-*-*) ;;
621 case "${canonical}" in
622 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
624 emacs_check_sunpro_c=yes
626 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
627 ## Note that Emacs 23.1's NEWS said the following would be dropped.
628 *-sunos5.6* | *-solaris2.6* )
632 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
633 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
635 emacs_check_sunpro_c=yes
638 ## Watch out for a compiler that we know will not work.
639 case "${canonical}" in
640 *-solaris* | *-sunos5* )
641 if [ "x$CC" = x/usr/ucb/cc ]; then
642 ## /usr/ucb/cc doesn't work;
643 ## we should find some other compiler that does work.
651 ## Intel 386 machines where we don't care about the manufacturer.
653 case "${canonical}" in
654 *-darwin* ) opsys=darwin ;;
657 # MinGW overrides and adds some system headers in nt/inc.
658 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
660 *-sysv4.2uw* ) opsys=unixware ;;
661 *-sysv5uw* ) opsys=unixware ;;
662 *-sysv5OpenUNIX* ) opsys=unixware ;;
663 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
669 case "${canonical}" in
672 # MinGW overrides and adds some system headers in nt/inc.
673 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
675 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
684 ### If the code above didn't choose an operating system, just choose
685 ### an operating system based on the configuration name. You really
686 ### only want to use this when you have no idea what the right
687 ### operating system is; if you know what operating systems a machine
688 ### runs, it's cleaner to make it explicit in the case statement
690 if test x"${opsys}" = x; then
691 case "${canonical}" in
692 *-gnu* ) opsys=gnu ;;
702 if test $unported = yes; then
703 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
704 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
705 Check `etc/MACHINES' for recognized configuration names.])
709 #### Choose a compiler.
711 dnl Don't bother to test for C89.
712 AC_DEFUN([_AC_PROG_CC_C89], [$2])
714 dnl Sets GCC=yes if using gcc.
715 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
716 if test -n "$XCRUN"; then
717 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
718 test -n "$AR" && export AR
721 dnl Emacs needs C99 or later.
726 if test x$GCC = xyes; then
727 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
729 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
732 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
733 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
734 dnl that clash with MinGW.
735 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
737 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
738 AC_DEFUN([gl_CRYPTO_CHECK])
739 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
740 # as we don't use them.
741 AC_DEFUN([gl_FCNTL_O_FLAGS])
743 # Initialize gnulib right after choosing the compiler.
744 dnl Amongst other things, this sets AR and ARFLAGS.
747 if test "$ac_test_CFLAGS" != set; then
748 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
749 # if -g3 works and the user does not specify CFLAGS.
750 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
753 emacs_g3_CFLAGS='-g3';;
755 emacs_g3_CFLAGS='-g3 -O2';;
759 if test -n "$emacs_g3_CFLAGS"; then
760 emacs_save_CFLAGS=$CFLAGS
761 CFLAGS=$emacs_g3_CFLAGS
762 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
763 [emacs_cv_prog_cc_g3],
764 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
765 [emacs_cv_prog_cc_g3=yes],
766 [emacs_cv_prog_cc_g3=no])])
767 if test $emacs_cv_prog_cc_g3 != yes; then
768 CFLAGS=$emacs_save_CFLAGS
770 if test $opsys = mingw32; then
771 CFLAGS="$CFLAGS -gdwarf-2"
778 # No optimization flag was inferred for this non-GCC compiler.
779 # Try -O. This is needed for xlc on AIX; see Bug#14258.
780 emacs_save_CFLAGS=$CFLAGS
781 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
783 AC_CACHE_CHECK([whether $CC accepts -O],
784 [emacs_cv_prog_cc_o],
785 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
786 [emacs_cv_prog_cc_o=yes],
787 [emacs_cv_prog_cc_o=no])])
788 if test $emacs_cv_prog_cc_o != yes; then
789 CFLAGS=$emacs_save_CFLAGS
794 AC_ARG_ENABLE([gcc-warnings],
795 [AS_HELP_STRING([--enable-gcc-warnings],
796 [turn on lots of GCC warnings/errors. This is intended for
797 developers, and may generate false alarms when used
798 with older or non-GNU development tools.])],
801 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
803 gl_gcc_warnings=$enableval],
807 # clang is unduly picky about some things.
808 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
815 [emacs_cv_clang=yes],
816 [emacs_cv_clang=no])])
818 # When compiling with GCC, prefer -isystem to -I when including system
819 # include files, to avoid generating useless diagnostics for the files.
820 if test "$gl_gcc_warnings" != yes; then
822 if test "$emacs_cv_clang" = yes
824 # Turn off some warnings if supported.
825 gl_WARN_ADD([-Wno-switch])
826 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
827 gl_WARN_ADD([-Wno-pointer-sign])
832 # This, $nw, is the list of warnings we disable.
835 case $with_x_toolkit in
836 lucid | athena | motif)
837 # Old toolkits mishandle 'const'.
838 nw="$nw -Wwrite-strings"
841 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
844 AC_SUBST([WERROR_CFLAGS])
846 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
847 nw="$nw -Woverlength-strings" # Not a problem these days
848 nw="$nw -Wlogical-op" # any use of fwrite provokes this
849 nw="$nw -Wformat-nonliteral" # we do this a lot
850 nw="$nw -Wvla" # warnings in gettext.h
851 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
852 nw="$nw -Wswitch-default" # Too many warnings for now
853 nw="$nw -Winline" # OK to ignore 'inline'
854 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
855 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
856 # signed overflow has undefined behavior
857 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
858 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
859 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
861 # Emacs doesn't care about shadowing; see
862 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
865 # Emacs's use of alloca inhibits protecting the stack.
866 nw="$nw -Wstack-protector"
868 # The following line should be removable at some point.
869 nw="$nw -Wsuggest-attribute=pure"
871 # This part is merely for shortening the command line,
872 # since -Wno-FOO needs to be added below regardless.
873 nw="$nw -Wmissing-field-initializers"
875 nw="$nw -Wtype-limits"
876 nw="$nw -Wunused-parameter"
878 if test $emacs_cv_clang = yes; then
879 nw="$nw -Wcast-align"
882 gl_MANYWARN_ALL_GCC([ws])
883 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
887 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
888 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
889 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
891 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
892 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
893 gl_WARN_ADD([-Wno-format-nonliteral])
895 # In spite of excluding -Wlogical-op above, it is enabled, as of
896 # gcc 4.5.0 20090517.
897 gl_WARN_ADD([-Wno-logical-op])
899 # More things that clang is unduly picky about.
900 if test $emacs_cv_clang = yes; then
901 gl_WARN_ADD([-Wno-format-extra-args])
902 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
903 gl_WARN_ADD([-Wno-unused-command-line-argument])
904 gl_WARN_ADD([-Wno-unused-value])
907 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
908 AH_VERBATIM([FORTIFY_SOURCE],
909 [/* Enable compile-time and run-time bounds-checking, and some warnings,
910 without upsetting glibc 2.15+. */
911 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
912 # define _FORTIFY_SOURCE 2
915 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
917 # We use a slightly smaller set of warning options for lib/.
918 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
920 nw="$nw -Wunused-macros"
922 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
923 AC_SUBST([GNULIB_WARN_CFLAGS])
933 AC_ARG_ENABLE(link-time-optimization,
934 [AS_HELP_STRING([--enable-link-time-optimization],
935 [build emacs with link-time optimization.
936 This requires GCC 4.5.0 or later, or clang.
937 (Note that clang support is experimental - see INSTALL.)
938 It also makes Emacs harder to debug, and when we tried it
939 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
940 recommended for typical use.])],
941 if test "${enableval}" != "no"; then
943 if test $emacs_cv_clang = yes; then
944 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
945 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
946 if test -x "$GOLD_PLUGIN"; then
949 elif test x$GCC = xyes; then
950 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
951 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
952 if test x$CPUS != x; then
958 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
960 if test -z "$LTO"; then
964 CFLAGS="$CFLAGS $LTO"
965 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
966 [ac_lto_supported=yes], [ac_lto_supported=no])
969 AC_MSG_RESULT([$ac_lto_supported])
970 if test "$ac_lto_supported" = "yes"; then
971 CFLAGS="$CFLAGS $LTO"
972 if test x$emacs_cv_clang = xyes; then
973 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
974 # WARNING: 'ar --plugin ...' doesn't work without
975 # command, so plugin name is appended to ARFLAGS.
976 ARFLAGS="cru --plugin $GOLD_PLUGIN"
977 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
979 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
980 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
981 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
982 dnl dump core on Fedora 20, so play it safe for now.
983 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
984 [CFLAGS="$CFLAGS -ffat-lto-objects"])
989 dnl Some other nice autoconf tests.
990 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
993 dnl if test "x$RANLIB" = x; then
998 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
999 dnl can be made to directories. This is not relevant for our usage, and
1000 dnl excludes some cases that work fine for us. Eg MS Windows or files
1001 dnl hosted on AFS, both examples where simple links work, but links to
1002 dnl directories fail. We use a cut-down version instead.
1005 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1006 rm -f conf$$ conf$$.file
1008 LN_S_FILEONLY='cp -p'
1010 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1011 dnl random program in the current directory.
1012 if (echo >conf$$.file) 2>/dev/null; then
1013 if ln -s conf$$.file conf$$ 2>/dev/null; then
1014 if test "$opsys" = "mingw32"; then
1015 LN_S_FILEONLY='/bin/ln -s'
1017 LN_S_FILEONLY='ln -s'
1019 elif ln conf$$.file conf$$ 2>/dev/null; then
1020 if test "$opsys" = "mingw32"; then
1021 LN_S_FILEONLY=/bin/ln
1028 rm -f conf$$ conf$$.file
1030 if test "$LN_S_FILEONLY" = "ln -s"; then
1031 AC_MSG_RESULT([yes])
1033 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1036 AC_SUBST(LN_S_FILEONLY)
1039 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1040 dnl doesn't support links to directories, as in "ln file dir". But that
1041 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1042 dnl executables at "make install" time.
1043 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1044 dnl for more details.
1045 if test "$opsys" = "mingw32"; then
1049 dnl On some Debian versions, "install-info" prints irritating messages
1050 dnl "This is not dpkg install-info anymore, but GNU install-info"
1051 dnl if called via an absolute file name.
1052 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1053 dnl Sadly some people may have an old ginstall-info installed on
1054 dnl non-Debian systems, so we can't use this.
1055 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1056 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1058 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1059 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1060 dnl Don't use GZIP, which is used by gzip for additional parameters.
1061 AC_PATH_PROG(GZIP_PROG, gzip)
1063 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1064 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1066 if test $opsys = gnu-linux; then
1067 AC_PATH_PROG(PAXCTL, paxctl,,
1068 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1069 if test "X$PAXCTL" != X; then
1070 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1071 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1072 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1073 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1076 if test "${SETFATTR+set}" != set; then
1077 AC_CACHE_CHECK([for setfattr],
1078 [emacs_cv_prog_setfattr],
1080 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1081 emacs_cv_prog_setfattr=yes
1083 emacs_cv_prog_setfattr=no
1085 if test "$emacs_cv_prog_setfattr" = yes; then
1091 AC_SUBST([SETFATTR])
1095 ## Need makeinfo >= 4.7 (?) to build the manuals.
1096 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1097 dnl By this stage, configure has already checked for egrep and set EGREP,
1098 dnl or exited with an error if no egrep was found.
1099 if test "$MAKEINFO" != "no"; then
1101 $MAKEINFO --version 2> /dev/null |
1102 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1108 ## Makeinfo is unusual. For a released Emacs, the manuals are
1109 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1110 ## therefore in the category of "special tools" not normally required, which
1111 ## configure does not have to check for (eg autoconf itself).
1112 ## In a repository checkout on the other hand, the manuals are not included.
1113 ## So makeinfo is a requirement to build from the repository, and configure
1114 ## should test for it as it does for any other build requirement.
1115 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1116 ## with pre-built manuals, from a repository checkout.
1119 if test "$MAKEINFO" = "no"; then
1121 if test "x${with_makeinfo}" = "xno"; then
1123 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1124 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1125 source tree does not seem to have pre-built manuals in the `info' directory.
1126 Either install a suitable version of makeinfo, or re-run configure
1127 with the `--without-makeinfo' option to build without the manuals.] )
1130 AC_SUBST(HAVE_MAKEINFO)
1132 if test $opsys = mingw32; then
1133 DOCMISC_W32=efaq-w32
1137 AC_SUBST(DOCMISC_W32)
1139 dnl Add our options to ac_link now, after it is set up.
1141 if test x$GCC = xyes; then
1142 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1143 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1145 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1146 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1149 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1150 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1151 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1152 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1153 dnl if not built to support GNU ld.
1155 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1156 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1157 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1158 dnl Eg "make LDFLAGS=... all" could run into problems,
1159 dnl http://bugs.debian.org/684788
1160 dnl * unnecessary, since temacs is the only thing that actually needs it.
1161 dnl Indeed this is where it was originally, prior to:
1162 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1163 late_LDFLAGS="$LDFLAGS"
1164 if test x$GCC = xyes; then
1165 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1167 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1170 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1172 AC_MSG_CHECKING([for -znocombreloc])
1173 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1174 [AC_MSG_RESULT(yes)],
1175 LDFLAGS_NOCOMBRELOC=
1176 [AC_MSG_RESULT(no)])
1178 LDFLAGS="$late_LDFLAGS"
1180 AC_CACHE_CHECK([whether addresses are sanitized],
1181 [emacs_cv_sanitize_address],
1184 [[#ifndef __has_feature
1185 #define __has_feature(f) 0
1187 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1189 error "Addresses are not sanitized.";
1192 [emacs_cv_sanitize_address=yes],
1193 [emacs_cv_sanitize_address=no])])
1195 dnl The function dump-emacs will not be defined and temacs will do
1196 dnl (load "loadup") automatically unless told otherwise.
1197 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1199 your-opsys-here) CANNOT_DUMP=yes ;;
1202 if test "$CANNOT_DUMP" = "yes"; then
1203 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1204 elif test "$emacs_cv_sanitize_address" = yes; then
1205 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1208 AC_SUBST(CANNOT_DUMP)
1211 UNEXEC_OBJ=unexelf.o
1213 # MSDOS uses unexcoff.o
1215 UNEXEC_OBJ=unexaix.o
1221 UNEXEC_OBJ=unexmacosx.o
1224 UNEXEC_OBJ=unexhp9k800.o
1227 UNEXEC_OBJ=unexw32.o
1230 # Use the Solaris dldump() function, called from unexsol.c, to dump
1231 # emacs, instead of the generic ELF dump code found in unexelf.c.
1232 # The resulting binary has a complete symbol table, and is better
1233 # for debugging and other observability tools (debuggers, pstack, etc).
1235 # If you encounter a problem using dldump(), please consider sending
1236 # a message to the OpenSolaris tools-linking mailing list:
1237 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1239 # It is likely that dldump() works with older Solaris too, but this has
1240 # not been tested, so for now this change is for Solaris 10 or newer.
1241 UNEXEC_OBJ=unexsol.o
1248 ## Let `ld' find image libs and similar things in /usr/local/lib.
1249 ## The system compiler, GCC, has apparently been modified to not
1250 ## look there, contrary to what a stock GCC would do.
1251 ### It's not our place to do this. See bug#10313#17.
1252 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1257 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1258 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1262 ### It's not our place to do this. See bug#10313#17.
1263 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1268 ## Han Boetes <han@boetes.org> says this is necessary,
1269 ## otherwise Emacs dumps core on elf systems.
1270 LD_SWITCH_SYSTEM="-Z"
1273 AC_SUBST(LD_SWITCH_SYSTEM)
1275 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1277 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1278 ## which has not been defined yet. When this was handled with cpp,
1279 ## it was expanded to null when configure sourced the s/*.h file.
1280 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1281 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1282 ## (or somesuch), but because it is supposed to go at the _front_
1283 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1284 ## Compare with the gnu-linux case below, which added to the end
1285 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1286 ## LD_SWITCH_SYSTEM_TEMACS.
1289 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1296 AC_CHECK_DECL([__ELF__])
1297 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1298 ## With ELF, make sure that all common symbols get allocated to in the
1299 ## data section. Otherwise, the dump of temacs may miss variables in
1300 ## the shared library that have been initialized. For example, with
1301 ## GNU libc, __malloc_initialized would normally be resolved to the
1302 ## shared library's .bss section, which is fatal.
1303 if test "x$GCC" = "xyes"; then
1304 C_SWITCH_MACHINE="-fno-common"
1306 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1309 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1310 dnl albeit under the mistaken assumption that said file
1311 dnl was no longer used.
1312 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1316 AC_SUBST(C_SWITCH_MACHINE)
1318 AC_SUBST(UNEXEC_OBJ)
1321 ## Some programs in src produce warnings saying certain subprograms
1322 ## are too complex and need a MAXMEM value greater than 2000 for
1323 ## additional optimization. --nils@exp-math.uni-essen.de
1324 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1325 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1326 if test "$opsys" = "mingw32"; then
1327 case "$canonical" in
1328 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1329 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1332 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1333 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1334 AC_SUBST(C_SWITCH_SYSTEM)
1339 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1340 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1342 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1344 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1346 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1348 ## Motif needs -lgen.
1349 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1352 AC_SUBST(LIBS_SYSTEM)
1354 ### Make sure subsequent tests use flags consistent with the build flags.
1356 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1357 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1359 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1362 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1363 AC_DEFUN([AC_TYPE_SIZE_T])
1364 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1365 AC_DEFUN([AC_TYPE_UID_T])
1367 # sqrt and other floating-point functions such as fmod and frexp
1368 # are found in -lm on many systems.
1370 AC_SEARCH_LIBS([sqrt], [m])
1371 if test "X$LIBS" = "X$OLD_LIBS"; then
1374 LIB_MATH=$ac_cv_search_sqrt
1378 dnl Current possibilities handled by sed (aix4-2 -> aix,
1379 dnl gnu-linux -> gnu/linux, etc.):
1380 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1381 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1382 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1389 ## Adding -lm confuses the dynamic linker, so omit it.
1392 freebsd | dragonfly )
1393 SYSTEM_TYPE=berkeley-unix
1395 gnu-linux | gnu-kfreebsd )
1397 hpux10-20 | hpux11 )
1401 SYSTEM_TYPE=windows-nt
1403 dnl NB this may be adjusted below.
1405 SYSTEM_TYPE=berkeley-unix
1409 SYSTEM_TYPE=usg-unix-v
1415 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1416 [The type of system you are compiling for; sets `system-type'.])
1419 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1420 pre_PKG_CONFIG_LIBS=$LIBS
1422 PKG_PROG_PKG_CONFIG(0.9.0)
1424 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1425 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1426 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1427 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1428 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1429 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1431 AC_DEFUN([EMACS_CHECK_MODULES],
1432 [PKG_CHECK_MODULES([$1], [$2],
1433 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1434 m4_default([$3], [HAVE_$1=yes])],
1435 [m4_default([$4], [HAVE_$1=no])])])
1438 if test "${with_sound}" != "no"; then
1439 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1440 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1441 have_sound_header=yes, [], [
1443 #define WIN32_LEAN_AND_MEAN
1444 #include <windows.h>
1447 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1448 AC_MSG_ERROR([OSS sound support requested but not found.])
1450 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1451 # Emulation library used on NetBSD.
1452 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1453 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1454 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1455 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1456 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1460 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1462 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1463 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1464 if test $HAVE_ALSA = yes; then
1465 SAVE_CFLAGS="$CFLAGS"
1467 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1468 LIBS="$ALSA_LIBS $LIBS"
1469 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1470 emacs_alsa_normal=yes,
1471 emacs_alsa_normal=no)
1472 if test "$emacs_alsa_normal" != yes; then
1473 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1474 [[snd_lib_error_set_handler (0);]])],
1475 emacs_alsa_subdir=yes,
1476 emacs_alsa_subdir=no)
1477 if test "$emacs_alsa_subdir" != yes; then
1478 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1480 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1483 CFLAGS="$SAVE_CFLAGS"
1485 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1486 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1487 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1488 elif test "${with_sound}" = "alsa"; then
1489 AC_MSG_ERROR([ALSA sound support requested but not found.])
1491 fi dnl with_sound = alsa|yes
1493 dnl Define HAVE_SOUND if we have sound support. We know it works and
1494 dnl compiles only on the specified platforms. For others, it
1495 dnl probably doesn't make sense to try.
1496 dnl FIXME So surely we should bypass this whole section if not using
1497 dnl one of these platforms?
1498 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1500 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1501 dnl Adjust the --with-sound help text if you change this.
1502 gnu-linux|freebsd|netbsd|mingw32)
1503 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1509 AC_SUBST(CFLAGS_SOUND)
1512 dnl checks for header files
1513 AC_CHECK_HEADERS_ONCE(
1518 sys/utsname.h pwd.h utmp.h util.h)
1520 AC_MSG_CHECKING(if personality LINUX32 can be set)
1521 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1522 emacs_cv_personality_linux32=yes,
1523 emacs_cv_personality_linux32=no)
1524 AC_MSG_RESULT($emacs_cv_personality_linux32)
1526 if test $emacs_cv_personality_linux32 = yes; then
1527 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1528 [Define to 1 if personality LINUX32 can be set.])
1531 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1532 AC_MSG_CHECKING([if Linux sysinfo may be used])
1533 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1534 [[struct sysinfo si; sysinfo (&si)]])],
1535 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1536 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1537 if test $emacs_cv_linux_sysinfo = yes; then
1538 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1539 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1540 [[struct sysinfo si; return si.mem_unit]])],
1541 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1542 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1546 dnl On Solaris 8 there's a compilation warning for term.h because
1547 dnl it doesn't define `bool'.
1548 AC_CHECK_HEADERS(term.h, , , -)
1550 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1552 if test $ac_cv_have_decl_sys_siglist != yes; then
1553 # For Tru64, at least:
1554 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1559 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1560 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1561 #if HAVE_SYS_SOCKET_H
1562 #include <sys/socket.h>
1564 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1565 #if HAVE_SYS_SOCKET_H
1566 #include <sys/socket.h>
1568 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1569 #if HAVE_SYS_SOCKET_H
1570 #include <sys/socket.h>
1573 dnl checks for structure members
1574 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1575 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1576 struct ifreq.ifr_addr,
1577 struct ifreq.ifr_addr.sa_len], , ,
1578 [AC_INCLUDES_DEFAULT
1579 #if HAVE_SYS_SOCKET_H
1580 #include <sys/socket.h>
1586 dnl Check for endianness.
1587 dnl AC_C_BIGENDIAN is done by gnulib.
1589 dnl check for Make feature
1594 dnl check if we have GCC and autodepend is on.
1595 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1596 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1597 SAVE_CFLAGS="$CFLAGS"
1598 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1600 CFLAGS="$SAVE_CFLAGS"
1601 test -f deps.d || ac_enable_autodepend=no
1603 AC_MSG_RESULT([$ac_enable_autodepend])
1604 if test $ac_enable_autodepend = yes; then
1605 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1606 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1607 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1608 deps_frag=autodeps.mk
1611 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1612 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1613 deps_frag=$srcdir/src/$deps_frag
1616 AC_SUBST_FILE(deps_frag)
1617 AC_SUBST_FILE(lwlib_deps_frag)
1618 AC_SUBST_FILE(oldxmenu_deps_frag)
1620 lisp_frag=$srcdir/src/lisp.mk
1621 AC_SUBST_FILE(lisp_frag)
1624 dnl checks for operating system services
1625 AC_SYS_LONG_FILE_NAMES
1627 #### Choose a window system.
1629 ## We leave window_system equal to none if
1630 ## we end up building without one. Any new window system should
1631 ## set window_system to an appropriate value and add objects to
1632 ## window-system-specific substs.
1636 if test "$no_x" != yes; then
1640 LD_SWITCH_X_SITE_RPATH=
1641 if test "${x_libraries}" != NONE; then
1642 if test -n "${x_libraries}"; then
1643 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1644 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1646 x_default_search_path=""
1647 x_search_path=${x_libraries}
1648 if test -z "${x_search_path}"; then
1649 x_search_path=/usr/lib
1651 for x_library in `echo ${x_search_path}: | \
1652 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1654 ${x_library}/X11/%L/%T/%N%C%S:\
1655 ${x_library}/X11/%l/%T/%N%C%S:\
1656 ${x_library}/X11/%T/%N%C%S:\
1657 ${x_library}/X11/%L/%T/%N%S:\
1658 ${x_library}/X11/%l/%T/%N%S:\
1659 ${x_library}/X11/%T/%N%S"
1660 if test x"${x_default_search_path}" = x; then
1661 x_default_search_path=${x_search_path}
1663 x_default_search_path="${x_search_path}:${x_default_search_path}"
1667 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1669 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1670 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1673 if test x"${x_includes}" = x; then
1674 bitmapdir=/usr/include/X11/bitmaps
1676 # accumulate include directories that have X11 bitmap subdirectories
1678 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1679 if test -d "${bmd}/X11/bitmaps"; then
1680 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1682 if test -d "${bmd}/bitmaps"; then
1683 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1686 if test ${bmd_acc} != "dummyval"; then
1687 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1694 tmp_CPPFLAGS="$CPPFLAGS"
1695 tmp_CFLAGS="$CFLAGS"
1696 CPPFLAGS="$CPPFLAGS -x objective-c"
1697 CFLAGS="$CFLAGS -x objective-c"
1700 if test "${with_ns}" != no; then
1701 if test "${opsys}" = darwin; then
1703 ns_appdir=`pwd`/nextstep/Emacs.app
1704 ns_appbindir=${ns_appdir}/Contents/MacOS
1705 ns_appresdir=${ns_appdir}/Contents/Resources
1706 ns_appsrc=Cocoa/Emacs.base
1707 elif test -f $GNUSTEP_CONFIG_FILE; then
1709 ns_appdir=`pwd`/nextstep/Emacs.app
1710 ns_appbindir=${ns_appdir}
1711 ns_appresdir=${ns_appdir}/Resources
1712 ns_appsrc=GNUstep/Emacs.base
1713 dnl FIXME sourcing this several times in subshells seems inefficient.
1714 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1715 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1716 dnl I seemed to need these as well with GNUstep-startup 0.25.
1717 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1718 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1719 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1720 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1721 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1722 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1723 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1724 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1725 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1726 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1727 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1728 dnl If they had chosen to either define it or not, we could have
1729 dnl just used AC_CHECK_DECL here.
1730 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1731 emacs_cv_objc_exceptions,
1732 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1733 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1737 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1738 if test $emacs_cv_objc_exceptions = yes; then
1739 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1740 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1741 [Define if GNUstep uses ObjC exceptions.])
1742 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1746 dnl This is only used while we test the NS headers, it gets reset below.
1747 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1749 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1750 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1751 files are missing or cannot be compiled.])])
1754 if test "${NS_IMPL_COCOA}" = "yes"; then
1755 AC_MSG_CHECKING([for OSX 10.4 or newer])
1756 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1758 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1759 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1762 error "OSX 10.4 or newer required";
1766 ns_osx_have_104=yes,
1768 AC_MSG_RESULT([$ns_osx_have_104])
1770 if test $ns_osx_have_104 = no; then
1771 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1773 AC_MSG_CHECKING([for OSX 10.5 or newer])
1774 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1776 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1777 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1780 error "OSX 10.5 not found";
1784 ns_osx_have_105=yes,
1786 AC_MSG_RESULT([$ns_osx_have_105])
1787 if test $ns_osx_have_105 = yes; then
1788 macfont_file="macfont.o"
1791 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1793 ns_have_nsinteger=yes,
1794 ns_have_nsinteger=no)
1795 if test $ns_have_nsinteger = yes; then
1796 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1800 AC_SUBST(LIBS_GNUSTEP)
1802 INSTALL_ARCH_INDEP_EXTRA=install-etc
1803 ns_self_contained=no
1806 if test "${HAVE_NS}" = yes; then
1807 if test "$with_toolkit_scroll_bars" = "no"; then
1808 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1811 window_system=nextstep
1812 # set up packaging dirs
1813 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1814 ns_self_contained=yes
1815 prefix=${ns_appresdir}
1816 exec_prefix=${ns_appbindir}
1817 dnl This one isn't really used, only archlibdir is.
1818 libexecdir="\${ns_appbindir}/libexec"
1819 archlibdir="\${ns_appbindir}/libexec"
1820 etcdocdir="\${ns_appresdir}/etc"
1821 etcdir="\${ns_appresdir}/etc"
1822 dnl FIXME maybe set datarootdir instead.
1823 dnl That would also get applications, icons, man.
1824 infodir="\${ns_appresdir}/info"
1825 mandir="\${ns_appresdir}/man"
1826 lispdir="\${ns_appresdir}/lisp"
1827 INSTALL_ARCH_INDEP_EXTRA=
1830 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1832 CFLAGS="$tmp_CFLAGS"
1833 CPPFLAGS="$tmp_CPPFLAGS"
1834 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1835 AC_SUBST(ns_self_contained)
1837 AC_SUBST(NS_OBJC_OBJ)
1848 if test "${with_w32}" != no; then
1851 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1852 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1853 cannot be found.])])
1856 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1859 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1864 if test "${opsys}" = "mingw32"; then
1865 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1866 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1867 #include <windows.h>
1868 #include <usp10.h>]],
1869 [[PIMAGE_NT_HEADERS pHeader;
1870 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1871 [emacs_cv_w32api=yes
1874 AC_MSG_RESULT($emacs_cv_w32api)
1875 if test "${emacs_cv_w32api}" = "no"; then
1876 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1887 if test "${HAVE_W32}" = "yes"; then
1888 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1889 AC_CHECK_TOOL(WINDRES, [windres],
1890 [AC_MSG_ERROR([No resource compiler found.])])
1891 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1892 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1893 EMACSRES="emacs.res"
1894 case "$canonical" in
1895 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1896 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1898 if test "${opsys}" = "cygwin"; then
1899 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1900 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1901 # Tell the linker that emacs.res is an object (which we compile from
1902 # the rc file), not a linker script.
1903 W32_RES_LINK="-Wl,emacs.res"
1905 UPDATE_MANIFEST=update-game-score.exe.manifest
1906 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1907 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1908 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1909 W32_RES_LINK="\$(EMACSRES)"
1910 CLIENTRES="emacsclient.res"
1911 CLIENTW="emacsclientw\$(EXEEXT)"
1912 FIRSTFILE_OBJ=firstfile.o
1915 LIBS_ECLIENT="-lcomctl32"
1916 LIB_WSOCK32="-lwsock32"
1917 NTLIB="ntlib.$ac_objext"
1918 XARGS_LIMIT="-s 10000"
1924 AC_SUBST(EMACS_MANIFEST)
1925 AC_SUBST(UPDATE_MANIFEST)
1928 AC_SUBST(W32_RES_LINK)
1929 AC_SUBST(FIRSTFILE_OBJ)
1932 AC_SUBST(LIBS_ECLIENT)
1933 AC_SUBST(LIB_WSOCK32)
1935 AC_SUBST(XARGS_LIMIT)
1937 if test "${HAVE_W32}" = "yes"; then
1942 ## $window_system is now set to the window system we will
1945 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1946 # Too many warnings for now.
1948 nw="$nw -Wsuggest-attribute=const"
1949 nw="$nw -Wsuggest-attribute=noreturn"
1950 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1952 gl_WARN_ADD([-Wno-unused-variable])
1953 gl_WARN_ADD([-Wno-unused-but-set-variable])
1954 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1962 case "${window_system}" in
1967 case "${with_x_toolkit}" in
1968 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1969 motif ) USE_X_TOOLKIT=MOTIF ;;
1971 term_header=gtkutil.h
1972 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1973 dnl USE_X_TOOLKIT is set.
1974 USE_X_TOOLKIT=none ;;
1975 gtk2 ) with_gtk2=yes
1976 term_header=gtkutil.h
1977 USE_X_TOOLKIT=none ;;
1978 gtk3 ) with_gtk3=yes
1979 term_header=gtkutil.h
1980 USE_X_TOOLKIT=none ;;
1981 no ) USE_X_TOOLKIT=none ;;
1982 dnl If user did not say whether to use a toolkit, make this decision later:
1983 dnl use the toolkit if we have gtk, or X11R5 or newer.
1984 * ) USE_X_TOOLKIT=maybe ;;
1988 term_header=nsterm.h
1991 term_header=w32term.h
1995 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1996 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1997 if test "$HAVE_XSERVER" = true ||
1998 test -n "$DISPLAY" ||
1999 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2000 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2001 were found. You should install the relevant development files for X
2002 and for the toolkit you want, such as Gtk+ or Motif. Also make
2003 sure you have development files for image handling, i.e.
2004 tiff, gif, jpeg, png and xpm.
2005 If you are sure you want Emacs compiled without X window support, pass
2011 # Does the opsystem file prohibit the use of the GNU malloc?
2012 # Assume not, until told otherwise.
2016 [whether malloc is Doug Lea style],
2017 [emacs_cv_var_doug_lea_malloc],
2018 [emacs_cv_var_doug_lea_malloc=no
2019 dnl Hooks do not work with address sanitization.
2020 if test "$emacs_cv_sanitize_address" != yes; then
2023 [[#include <malloc.h>
2024 static void hook (void) {}]],
2025 [[malloc_set_state (malloc_get_state ());
2026 __after_morecore_hook = hook;
2027 __malloc_initialize_hook = hook;]])],
2028 [emacs_cv_var_doug_lea_malloc=yes])])
2030 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2032 system_malloc=$emacs_cv_sanitize_address
2034 ## darwin ld insists on the use of malloc routines in the System framework.
2035 darwin|mingw32|sol2-10) system_malloc=yes ;;
2039 if test "${system_malloc}" = "yes"; then
2040 AC_DEFINE([SYSTEM_MALLOC], 1,
2041 [Define to 1 to use the system memory allocator, even if it is not
2045 (The GNU allocators don't work with this system configuration.)"
2048 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2049 VMLIMIT_OBJ=vm-limit.o
2051 AC_CHECK_HEADERS([sys/vlimit.h])
2052 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2055 [[extern char data_start[]; char ch;]],
2056 [[return data_start < &ch;]])],
2057 [emacs_cv_data_start=yes],
2058 [emacs_cv_data_start=no])])
2059 if test $emacs_cv_data_start = yes; then
2060 AC_DEFINE([HAVE_DATA_START], 1,
2061 [Define to 1 if data_start is the address of the start
2062 of the main data segment.])
2065 AC_SUBST(GMALLOC_OBJ)
2066 AC_SUBST(VMLIMIT_OBJ)
2068 if test "$doug_lea_malloc" = "yes" ; then
2069 if test "$GNU_MALLOC" = yes ; then
2071 (Using Doug Lea's new malloc from the GNU C Library.)"
2073 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2074 [Define to 1 if the system memory allocator is Doug Lea style,
2075 with malloc hooks and malloc_set_state.])
2077 ## Use mmap directly for allocating larger buffers.
2078 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2079 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2080 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2082 mingw32|gnu*) REL_ALLOC=no ;;
2086 if test x"${REL_ALLOC}" = x; then
2087 REL_ALLOC=${GNU_MALLOC}
2090 use_mmap_for_buffers=no
2092 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2096 if test $use_mmap_for_buffers = yes; then
2097 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2101 LIBS="$LIBS_SYSTEM $LIBS"
2103 dnl FIXME replace main with a function we actually want from this library.
2104 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2106 dnl Check for the POSIX thread library.
2108 if test "$opsys" != "mingw32"; then
2109 AC_CHECK_HEADERS_ONCE(pthread.h)
2110 if test "$ac_cv_header_pthread_h"; then
2111 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2112 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2113 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2114 if test "$GMALLOC_OBJ" = gmalloc.o; then
2115 emacs_pthread_function=pthread_atfork
2117 emacs_pthread_function=pthread_kill
2120 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2121 [AC_DEFINE([HAVE_PTHREAD], [1],
2122 [Define to 1 if you have pthread (-lpthread).])
2123 # Some systems optimize for single-threaded programs by default, and
2124 # need special flags to disable these optimizations. For example, the
2125 # definition of 'errno' in <errno.h>.
2128 AC_DEFINE([_REENTRANT], 1,
2129 [Define to 1 if your system requires this in multithreaded code.]);;
2131 AC_DEFINE([_THREAD_SAFE], 1,
2132 [Define to 1 if your system requires this in multithreaded code.]);;
2134 if test "X$LIBS" != "X$OLD_LIBS"; then
2135 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2139 AC_SUBST([LIB_PTHREAD])
2142 dnl Check for need for bigtoc support on IBM AIX
2146 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2148 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2149 *) gdb_cv_bigtoc=-bbigtoc ;;
2152 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2153 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2158 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2159 # is for the tests that follow. We set them back later on.
2161 REAL_CFLAGS="$CFLAGS"
2162 REAL_CPPFLAGS="$CPPFLAGS"
2165 if test "${HAVE_X11}" = "yes"; then
2166 DEFS="$C_SWITCH_X_SITE $DEFS"
2167 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2169 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2170 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2172 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2173 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2174 # but it's more convenient here to set LD_RUN_PATH since this
2175 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2176 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2177 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2181 if test "${opsys}" = "gnu-linux"; then
2182 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2183 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2184 [[XOpenDisplay ("foo");]])],
2185 [xgnu_linux_first_failure=no],
2186 [xgnu_linux_first_failure=yes])
2187 if test "${xgnu_linux_first_failure}" = "yes"; then
2188 OLD_CPPFLAGS="$CPPFLAGS"
2190 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2191 LIBS="$LIBS -b i486-linuxaout"
2192 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2193 [[XOpenDisplay ("foo");]])],
2194 [xgnu_linux_second_failure=no],
2195 [xgnu_linux_second_failure=yes])
2196 if test "${xgnu_linux_second_failure}" = "yes"; then
2197 # If we get the same failure with -b, there is no use adding -b.
2198 # So leave it out. This plays safe.
2201 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2202 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2205 CPPFLAGS=$OLD_CPPFLAGS
2212 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2213 # header files included from there.
2214 AC_MSG_CHECKING(for Xkb)
2215 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2216 #include <X11/XKBlib.h>]],
2217 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2218 emacs_xkb=yes, emacs_xkb=no)
2219 AC_MSG_RESULT($emacs_xkb)
2220 if test $emacs_xkb = yes; then
2221 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2224 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2225 XScreenNumberOfScreen)
2228 if test "${window_system}" = "x11"; then
2229 AC_MSG_CHECKING(X11 version 6)
2230 AC_CACHE_VAL(emacs_cv_x11_version_6,
2231 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2232 [[#if XlibSpecificationRelease < 6
2235 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2236 if test $emacs_cv_x11_version_6 = yes; then
2237 AC_MSG_RESULT(6 or newer)
2238 AC_DEFINE(HAVE_X11R6, 1,
2239 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2240 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2241 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2245 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2246 [Define if you have usable X11R6-style XIM support.])
2250 AC_MSG_RESULT(before 6)
2255 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2257 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2258 if test "${with_rsvg}" != "no"; then
2259 RSVG_REQUIRED=2.11.0
2260 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2262 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2263 AC_SUBST(RSVG_CFLAGS)
2266 if test $HAVE_RSVG = yes; then
2267 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2268 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2269 # Windows loads librsvg dynamically
2270 if test "${opsys}" = "mingw32"; then
2278 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2279 if test "${with_imagemagick}" != "no"; then
2280 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2281 ## 6.8.2 makes Emacs crash; see Bug#13867.
2282 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2283 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2284 AC_SUBST(IMAGEMAGICK_CFLAGS)
2285 AC_SUBST(IMAGEMAGICK_LIBS)
2287 if test $HAVE_IMAGEMAGICK = yes; then
2288 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2291 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2292 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2293 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2303 gtk_term_header=$term_header
2306 if test "${opsys}" != "mingw32"; then
2307 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2310 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2312 dnl Checks for libraries.
2313 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2314 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2315 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2316 AC_MSG_ERROR($GTK_PKG_ERRORS)
2318 if test "$pkg_check_gtk" = "yes"; then
2319 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2320 GTK_OBJ=emacsgtkfixed.o
2321 gtk_term_header=gtkutil.h
2322 USE_GTK_TOOLKIT="GTK3"
2323 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2324 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2325 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2326 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2327 [Define to 1 to disable Glib deprecation warnings.])
2331 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2335 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2338 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2340 dnl Checks for libraries.
2341 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2342 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2343 if test "$pkg_check_gtk" = "no" &&
2344 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2346 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2348 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2355 if test x"$pkg_check_gtk" = xyes; then
2358 CFLAGS="$CFLAGS $GTK_CFLAGS"
2359 LIBS="$GTK_LIBS $LIBS"
2360 dnl Try to compile a simple GTK program.
2361 AC_MSG_CHECKING([whether GTK compiles])
2365 [[/* Check the Gtk and Glib APIs. */
2366 #include <gtk/gtk.h>
2367 #include <glib-object.h>
2369 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2373 GtkSettings *gs = 0;
2374 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2375 strict C prohibits this. Use gtk_main_iteration to test that the
2376 libraries are there. */
2377 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2378 0, 0, 0, G_CALLBACK (callback), 0))
2379 gtk_main_iteration ();
2382 AC_MSG_RESULT([$GTK_COMPILES])
2383 if test "${GTK_COMPILES}" != "yes"; then
2385 if test "$USE_X_TOOLKIT" != "maybe"; then
2386 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2389 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2391 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2392 GTK_OBJ="gtkutil.o $GTK_OBJ"
2393 term_header=$gtk_term_header
2395 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2398 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2399 closing open displays. This is no problem if you just use
2400 one display, but if you use more than one and close one of them
2410 if test "${HAVE_GTK}" = "yes"; then
2412 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2413 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2414 if test "$with_toolkit_scroll_bars" != no; then
2415 with_toolkit_scroll_bars=yes
2418 dnl Check if we have the old file selection dialog declared and
2419 dnl in the link library. In 2.x it may be in the library,
2420 dnl but not declared if deprecated featured has been selected out.
2421 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2422 HAVE_GTK_FILE_SELECTION=no
2423 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2424 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2425 #include <gtk/gtk.h>])
2426 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2427 AC_CHECK_FUNCS(gtk_file_selection_new)
2430 dnl Same as above for gtk_handle_box.
2431 HAVE_GTK_HANDLE_BOX=no
2432 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2433 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2434 #include <gtk/gtk.h>])
2435 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2436 AC_CHECK_FUNCS(gtk_handle_box_new)
2439 dnl Same as above for gtk_tearoff_menu_item.
2440 HAVE_GTK_TEAROFF_MENU_ITEM=no
2441 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2442 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2443 #include <gtk/gtk.h>])
2444 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2445 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2448 dnl Check for functions introduced in 2.14 and later.
2449 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2450 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2451 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2452 gtk_orientable_set_orientation \
2453 gtk_window_set_has_resize_grip)
2455 term_header=gtkutil.h
2463 if test "${with_xwidgets}" != "no"; then
2464 echo "xwidgets enabled, checking webkit, and others"
2466 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2469 # - enable only if gtk/gtk3 enabled
2471 # - only webkit_osr is good so remove plain webkit laterish
2473 #webkit version for gtk3.
2474 WEBKIT_REQUIRED=1.4.0
2475 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2477 if test "${with_gtk3}" = "yes"; then
2478 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2479 if test $HAVE_WEBKIT = yes; then
2480 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2485 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2486 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2487 if test $HAVE_GIR = yes; then
2488 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2497 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2498 dnl other platforms.
2501 if test "${with_dbus}" = "yes"; then
2502 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2503 if test "$HAVE_DBUS" = yes; then
2504 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2505 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2506 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2509 LIBS="$LIBS $DBUS_LIBS"
2510 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2511 dbus_type_is_valid \
2512 dbus_validate_bus_name \
2513 dbus_validate_path \
2514 dbus_validate_interface \
2515 dbus_validate_member)
2520 AC_SUBST(DBUS_CFLAGS)
2524 dnl GSettings has been tested under GNU/Linux only.
2526 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2527 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2528 if test "$HAVE_GSETTINGS" = "yes"; then
2530 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2532 LIBS="$LIBS $GSETTINGS_LIBS"
2533 AC_MSG_CHECKING([whether GSettings is in gio])
2536 [[/* Check that gsettings really is present. */
2537 #include <glib-object.h>
2538 #include <gio/gio.h>
2541 GSettings *settings;
2542 GVariant *val = g_settings_get_value (settings, "");
2544 [], HAVE_GSETTINGS=no)
2545 AC_MSG_RESULT([$HAVE_GSETTINGS])
2547 if test "$HAVE_GSETTINGS" = "yes"; then
2548 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2549 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2550 SETTINGS_LIBS="$GSETTINGS_LIBS"
2557 dnl GConf has been tested under GNU/Linux only.
2558 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2560 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2561 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2562 if test "$HAVE_GCONF" = yes; then
2563 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2564 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2565 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2566 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2570 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2571 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2572 if test "$HAVE_GOBJECT" = "yes"; then
2573 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2574 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2576 SAVE_CFLAGS="$CFLAGS"
2578 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2579 LIBS="$SETTINGS_LIBS $LIBS"
2580 CFLAGS="$SAVE_CFLAGS"
2583 AC_SUBST(SETTINGS_CFLAGS)
2584 AC_SUBST(SETTINGS_LIBS)
2587 dnl SELinux is available for GNU/Linux only.
2590 if test "${with_selinux}" = "yes"; then
2591 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2592 if test "$HAVE_LIBSELINUX" = yes; then
2593 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2594 LIBSELINUX_LIBS=-lselinux
2597 AC_SUBST(LIBSELINUX_LIBS)
2601 if test "${with_gnutls}" = "yes" ; then
2602 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2603 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2604 if test "${HAVE_GNUTLS3}" = "yes"; then
2605 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2608 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2609 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2611 if test "${HAVE_GNUTLS}" = "yes"; then
2612 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2615 # Windows loads GnuTLS dynamically
2616 if test "${opsys}" = "mingw32"; then
2621 AC_SUBST(LIBGNUTLS_LIBS)
2622 AC_SUBST(LIBGNUTLS_CFLAGS)
2627 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2628 dnl a particular library. This doesn't make much sense?
2629 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2630 with_file_notification=no
2633 dnl MS Windows native file monitor is available for mingw32 only.
2634 case $with_file_notification,$opsys in
2635 w32,* | yes,mingw32)
2636 AC_CHECK_HEADER(windows.h)
2637 if test "$ac_cv_header_windows_h" = yes ; then
2638 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2639 NOTIFY_OBJ=w32notify.o
2640 NOTIFY_SUMMARY="yes (w32)"
2644 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2645 dnl has been added in glib 2.24. It has been tested under
2646 dnl GNU/Linux only. We take precedence over inotify, but this makes
2647 dnl only sense when glib has been compiled with inotify support. How
2649 case $with_file_notification,$NOTIFY_OBJ in
2651 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2652 if test "$HAVE_GFILENOTIFY" = "yes"; then
2653 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2654 NOTIFY_OBJ=gfilenotify.o
2655 NOTIFY_SUMMARY="yes -lgio (gfile)"
2659 dnl inotify is only available on GNU/Linux.
2660 case $with_file_notification,$NOTIFY_OBJ in
2662 AC_CHECK_HEADER(sys/inotify.h)
2663 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2664 AC_CHECK_FUNC(inotify_init1)
2665 if test "$ac_cv_func_inotify_init1" = yes; then
2666 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2667 NOTIFY_OBJ=inotify.o
2668 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2673 case $with_file_notification,$NOTIFY_OBJ in
2674 yes,* | no,* | *,?*) ;;
2675 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2678 if test -n "$NOTIFY_OBJ"; then
2679 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2681 AC_SUBST(NOTIFY_OBJ)
2682 AC_SUBST(GFILENOTIFY_CFLAGS)
2683 AC_SUBST(GFILENOTIFY_LIBS)
2685 dnl Do not put whitespace before the #include statements below.
2686 dnl Older compilers (eg sunos4 cc) choke on it.
2689 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2690 if test "$with_xaw3d" != no; then
2691 AC_CACHE_VAL(emacs_cv_xaw3d,
2692 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2693 #include <X11/Intrinsic.h>
2694 #include <X11/Xaw3d/Simple.h>]],
2696 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2697 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2698 emacs_cv_xaw3d=no)])
2702 if test $emacs_cv_xaw3d = yes; then
2703 AC_MSG_CHECKING(for xaw3d)
2704 AC_MSG_RESULT([yes; using Lucid toolkit])
2708 AC_DEFINE(HAVE_XAW3D, 1,
2709 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2711 AC_MSG_CHECKING(for xaw3d)
2713 AC_MSG_CHECKING(for libXaw)
2714 AC_CACHE_VAL(emacs_cv_xaw,
2715 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2716 #include <X11/Intrinsic.h>
2717 #include <X11/Xaw/Simple.h>]],
2721 if test $emacs_cv_xaw = yes; then
2722 AC_MSG_RESULT([yes; using Lucid toolkit])
2725 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2726 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2728 AC_MSG_ERROR([No X toolkit could be found.
2729 If you are sure you want Emacs compiled without an X toolkit, pass
2731 to configure. Otherwise, install the development libraries for the toolkit
2732 that you want to use (e.g. Gtk+) and re-run configure.])
2737 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2741 if test "${USE_X_TOOLKIT}" != "none"; then
2742 AC_MSG_CHECKING(X11 toolkit version)
2743 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2744 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2745 [[#if XtSpecificationRelease < 6
2748 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2749 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2750 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2751 AC_MSG_RESULT(6 or newer)
2752 AC_DEFINE(HAVE_X11XTR6, 1,
2753 [Define to 1 if you have the X11R6 or newer version of Xt.])
2754 LIBXTR6="-lSM -lICE"
2756 ## Use libw.a along with X11R6 Xt.
2757 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2760 AC_MSG_RESULT(before 6)
2763 dnl If using toolkit, check whether libXmu.a exists.
2764 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2766 if test x$HAVE_X11XTR6 = xyes; then
2767 OTHERLIBS='-lXt -lSM -lICE'
2771 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2772 if test "X$LIBS" != "X$OLDLIBS"; then
2773 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2776 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2782 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2783 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2784 if test -d /usr/include/openmotif; then
2785 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2786 emacs_cv_openmotif=yes
2787 case "$canonical" in
2788 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2789 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2792 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2795 emacs_cv_openmotif=no
2797 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2798 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2799 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2802 Motif version prior to 2.1.
2804 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2805 if test $emacs_cv_motif_version_2_1 = yes; then
2806 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2807 if test x$emacs_cv_openmotif = xyes; then
2808 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2811 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2812 # We put this in CFLAGS temporarily to precede other -I options
2813 # that might be in CFLAGS temporarily.
2814 # We put this in CPPFLAGS where it precedes the other -I options.
2815 OLD_CPPFLAGS=$CPPFLAGS
2817 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2818 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2819 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2821 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2822 if test $emacs_cv_lesstif = yes; then
2823 # Make sure this -I option remains in CPPFLAGS after it is set
2824 # back to REAL_CPPFLAGS.
2825 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2826 # have those other -I options anyway. Ultimately, having this
2827 # directory ultimately in CPPFLAGS will be enough.
2828 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2829 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2832 CPPFLAGS=$OLD_CPPFLAGS
2835 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2836 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2839 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2840 dnl using Motif or Xaw3d is available, and unless
2841 dnl --with-toolkit-scroll-bars=no was specified.
2843 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2844 [Define to 1 if we should use toolkit scroll bars.])dnl
2845 USE_TOOLKIT_SCROLL_BARS=no
2846 if test "${with_toolkit_scroll_bars}" != "no"; then
2847 if test "${USE_X_TOOLKIT}" != "none"; then
2848 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2849 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2851 USE_TOOLKIT_SCROLL_BARS=yes
2852 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2853 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2854 USE_TOOLKIT_SCROLL_BARS=yes
2856 elif test "${HAVE_GTK}" = "yes"; then
2857 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2858 USE_TOOLKIT_SCROLL_BARS=yes
2859 elif test "${HAVE_NS}" = "yes"; then
2860 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2861 USE_TOOLKIT_SCROLL_BARS=yes
2862 elif test "${HAVE_W32}" = "yes"; then
2863 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2864 USE_TOOLKIT_SCROLL_BARS=yes
2868 dnl See if XIM is available.
2869 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2870 #include <X11/Xlib.h>
2871 #include <X11/Xresource.h>]],
2872 [[XIMProc callback;]])],
2874 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2877 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2879 if test "${with_xim}" != "no"; then
2880 AC_DEFINE(USE_XIM, 1,
2881 [Define to 1 if we should use XIM, if it is available.])
2885 if test "${HAVE_XIM}" != "no"; then
2887 if test "$GCC" = yes; then
2888 CFLAGS="$CFLAGS --pedantic-errors"
2890 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2891 #include <X11/Xlib.h>
2892 #include <X11/Xresource.h>]],
2898 XPointer *client_data;
2900 /* If we're not using GCC, it's probably not XFree86, and this is
2901 probably right, but we can't use something like --pedantic-errors. */
2902 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2903 char*, XIMProc, XPointer*);
2905 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2907 [emacs_cv_arg6_star=yes])
2908 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2909 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2910 either XPointer or XPointer*.])dnl
2911 if test "$emacs_cv_arg6_star" = yes; then
2912 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2914 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2919 ### Start of font-backend (under any platform) section.
2920 # (nothing here yet -- this is a placeholder)
2921 ### End of font-backend (under any platform) section.
2923 ### Start of font-backend (under X11) section.
2924 if test "${HAVE_X11}" = "yes"; then
2925 ## Use -lXft if available, unless `--with-xft=no'.
2927 if test "x${with_x}" = "xno"; then
2931 if test "$with_xft" != no; then
2932 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2933 with_xft=$HAVE_FONTCONFIG
2936 if test "x${with_xft}" != "xno"; then
2938 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2939 ## Because xftfont.c uses XRenderQueryExtension, we also
2940 ## need to link to -lXrender.
2942 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2943 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2944 OLD_CPPFLAGS="$CPPFLAGS"
2945 OLD_CFLAGS="$CFLAGS"
2947 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2948 CFLAGS="$CFLAGS $XFT_CFLAGS"
2949 XFT_LIBS="-lXrender $XFT_LIBS"
2950 LIBS="$XFT_LIBS $LIBS"
2951 AC_CHECK_HEADER(X11/Xft/Xft.h,
2952 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2953 [[#include <X11/X.h>]])
2955 if test "${HAVE_XFT}" = "yes"; then
2956 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2958 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2959 fi # "${HAVE_XFT}" = "yes"
2960 CPPFLAGS=$OLD_CPPFLAGS
2963 fi # "$HAVE_XFT" != no
2964 fi # "x${with_xft}" != "xno"
2966 ## We used to allow building with FreeType and without Xft.
2967 ## However, the ftx font backend driver is not in good shape.
2968 if test "$HAVE_XFT" != "yes"; then
2969 dnl For the "Does Emacs use" message at the end.
2973 dnl Strict linkers fail with
2974 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2975 dnl if -lfreetype is not specified.
2976 dnl The following is needed to set FREETYPE_LIBS.
2977 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2979 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2983 if test "${HAVE_FREETYPE}" = "yes"; then
2984 AC_DEFINE(HAVE_FREETYPE, 1,
2985 [Define to 1 if using the freetype and fontconfig libraries.])
2986 if test "${with_libotf}" != "no"; then
2987 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2988 if test "$HAVE_LIBOTF" = "yes"; then
2989 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2990 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2991 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2992 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2993 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2994 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2995 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2999 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3000 dnl Does the new font backend require it, or can it work without it?
3004 if test "${HAVE_LIBOTF}" = yes; then
3005 if test "${with_m17n_flt}" != "no"; then
3006 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3007 if test "$HAVE_M17N_FLT" = "yes"; then
3008 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3019 ### End of font-backend (under X11) section.
3021 AC_SUBST(FREETYPE_CFLAGS)
3022 AC_SUBST(FREETYPE_LIBS)
3023 AC_SUBST(FONTCONFIG_CFLAGS)
3024 AC_SUBST(FONTCONFIG_LIBS)
3025 AC_SUBST(LIBOTF_CFLAGS)
3026 AC_SUBST(LIBOTF_LIBS)
3027 AC_SUBST(M17N_FLT_CFLAGS)
3028 AC_SUBST(M17N_FLT_LIBS)
3030 ### Use -lXpm if available, unless `--with-xpm=no'.
3031 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3034 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3035 if test "${with_xpm}" != "no"; then
3036 SAVE_CPPFLAGS="$CPPFLAGS"
3037 SAVE_LDFLAGS="$LDFLAGS"
3038 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3039 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3040 AC_CHECK_HEADER(X11/xpm.h,
3041 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3042 if test "${HAVE_XPM}" = "yes"; then
3043 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3044 AC_EGREP_CPP(no_return_alloc_pixels,
3045 [#include "X11/xpm.h"
3046 #ifndef XpmReturnAllocPixels
3047 no_return_alloc_pixels
3049 ], HAVE_XPM=no, HAVE_XPM=yes)
3051 if test "${HAVE_XPM}" = "yes"; then
3052 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3056 CPPFLAGS="$SAVE_CPPFLAGS"
3057 LDFLAGS="$SAVE_LDFLAGS"
3062 if test "${HAVE_XPM}" = "yes"; then
3063 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3068 if test "${HAVE_X11}" = "yes"; then
3069 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3070 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3072 if test "${with_xpm}" != "no"; then
3073 AC_CHECK_HEADER(X11/xpm.h,
3074 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3075 if test "${HAVE_XPM}" = "yes"; then
3076 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3077 AC_EGREP_CPP(no_return_alloc_pixels,
3078 [#include "X11/xpm.h"
3079 #ifndef XpmReturnAllocPixels
3080 no_return_alloc_pixels
3082 ], HAVE_XPM=no, HAVE_XPM=yes)
3084 if test "${HAVE_XPM}" = "yes"; then
3092 if test "${HAVE_XPM}" = "yes"; then
3093 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3095 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3096 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3101 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3102 ### slightly different requirements wrt image libraries (it doesn't
3103 ### use -lXpm because it loads the xpm shared library dynamically at
3105 if test "${opsys}" = "mingw32"; then
3106 if test "${with_xpm}" != "no"; then
3107 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3111 if test "${HAVE_XPM}" = "yes"; then
3112 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3118 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3119 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3122 if test "${opsys}" = "mingw32"; then
3123 if test "${with_jpeg}" != "no"; then
3124 dnl Checking for jpeglib.h can lose because of a redefinition of
3126 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3128 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3129 if test "${HAVE_JPEG}" = "yes"; then
3130 AC_DEFINE(HAVE_JPEG)
3131 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3132 [#include <jpeglib.h>
3133 version=JPEG_LIB_VERSION
3135 [AC_DEFINE(HAVE_JPEG)],
3136 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3139 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3140 if test "${with_jpeg}" != "no"; then
3141 dnl Checking for jpeglib.h can lose because of a redefinition of
3143 AC_CHECK_HEADER(jerror.h,
3144 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3147 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3148 if test "${HAVE_JPEG}" = "yes"; then
3149 AC_DEFINE(HAVE_JPEG)
3150 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3151 [#include <jpeglib.h>
3152 version=JPEG_LIB_VERSION
3154 [AC_DEFINE(HAVE_JPEG)],
3155 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3158 if test "${HAVE_JPEG}" = "yes"; then
3166 if test "${with_zlib}" != "no"; then
3168 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3170 case $ac_cv_search_inflateEnd in
3171 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3174 if test "${HAVE_ZLIB}" = "yes"; then
3175 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3176 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3177 if test "${opsys}" = "mingw32"; then
3183 ### Use -lpng if available, unless `--with-png=no'.
3187 if test "${NS_IMPL_COCOA}" = yes; then
3189 elif test "${with_png}" != no; then
3190 # mingw32 loads the library dynamically.
3191 if test "$opsys" = mingw32; then
3192 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3193 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3194 AC_MSG_CHECKING([for png])
3195 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3196 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3197 # libpng-config does not work; configure by hand.
3198 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3199 # in /usr/include/libpng.
3200 if test -r /usr/include/libpng/png.h &&
3201 test ! -r /usr/include/png.h; then
3202 png_cflags=-I/usr/include/libpng
3210 CFLAGS="$CFLAGS $png_cflags"
3211 LIBS="$png_libs -lz -lm $LIBS"
3213 [AC_LANG_PROGRAM([[#include <png.h>]],
3214 [[return !png_get_channels (0, 0);]])],
3216 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3218 # $LIBPNG requires explicit -lz in some cases.
3219 # We don't know what those cases are, exactly, so play it safe and
3220 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3221 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3222 LIBPNG="$LIBPNG -lz"
3226 AC_MSG_RESULT([$HAVE_PNG])
3229 if test $HAVE_PNG = yes; then
3230 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3233 CFLAGS="$CFLAGS $PNG_CFLAGS"
3234 AC_CHECK_DECL([png_longjmp],
3236 [AC_DEFINE([PNG_DEPSTRUCT], [],
3237 [Define to empty to suppress deprecation warnings when building
3238 with --enable-gcc-warnings and with libpng versions before 1.5,
3239 which lack png_longjmp.])],
3245 AC_SUBST(PNG_CFLAGS)
3247 ### Use -ltiff if available, unless `--with-tiff=no'.
3248 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3251 if test "${opsys}" = "mingw32"; then
3252 if test "${with_tiff}" != "no"; then
3253 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3255 if test "${HAVE_TIFF}" = "yes"; then
3256 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3258 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3259 if test "${with_tiff}" != "no"; then
3260 AC_CHECK_HEADER(tiffio.h,
3262 # At least one tiff package requires the jpeg library.
3263 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3264 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3267 if test "${HAVE_TIFF}" = "yes"; then
3268 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3269 dnl FIXME -lz -lm, as per libpng?
3275 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3276 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3279 if test "${opsys}" = "mingw32"; then
3280 if test "${with_gif}" != "no"; then
3281 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3283 if test "${HAVE_GIF}" = "yes"; then
3284 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3286 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3287 || test "${HAVE_W32}" = "yes"; then
3288 AC_CHECK_HEADER(gif_lib.h,
3289 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3290 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3291 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3292 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3294 if test "$HAVE_GIF" = yes; then
3296 elif test "$HAVE_GIF" = maybe; then
3297 # If gif_lib.h but no libgif, try libungif.
3298 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3299 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3302 if test "${HAVE_GIF}" = "yes"; then
3303 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3308 dnl Check for required libraries.
3309 if test "${HAVE_X11}" = "yes"; then
3312 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3313 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3314 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3315 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3316 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3317 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3318 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3319 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3320 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3321 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3323 if test "X${MISSING}" != X; then
3324 AC_MSG_ERROR([The following required libraries were not found:
3326 Maybe some development libraries/packages are missing?
3327 If you don't want to link with them give
3329 as options to configure])
3333 ### Use -lgpm if available, unless `--with-gpm=no'.
3336 if test "${with_gpm}" != "no"; then
3337 AC_CHECK_HEADER(gpm.h,
3338 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3340 if test "${HAVE_GPM}" = "yes"; then
3341 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3347 dnl Check for malloc/malloc.h on darwin
3348 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3351 ### Use NeXTstep API to implement GUI.
3352 if test "${HAVE_NS}" = "yes"; then
3353 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3354 if test "${NS_IMPL_COCOA}" = "yes"; then
3355 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3357 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3358 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3359 # See also .m.o rule in Makefile.in */
3360 # FIXME: are all these flags really needed? Document here why. */
3361 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3362 ## Extra CFLAGS applied to src/*.m files.
3363 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3368 ### Use session management (-lSM -lICE) if available
3371 if test "${HAVE_X11}" = "yes"; then
3372 AC_CHECK_HEADER(X11/SM/SMlib.h,
3373 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3375 if test "${HAVE_X_SM}" = "yes"; then
3376 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3382 ### Use XRandr (-lXrandr) if available
3384 if test "${HAVE_X11}" = "yes"; then
3385 XRANDR_REQUIRED=1.2.2
3386 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3387 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3388 if test $HAVE_XRANDR = no; then
3389 # Test old way in case pkg-config doesn't have it (older machines).
3390 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3391 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3392 if test $HAVE_XRANDR = yes; then
3393 XRANDR_LIBS=-lXrandr
3396 if test $HAVE_XRANDR = yes; then
3397 SAVE_CFLAGS="$CFLAGS"
3399 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3400 LIBS="$XRANDR_LIBS $LIBS"
3401 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3402 CFLAGS="$SAVE_CFLAGS"
3405 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3408 AC_SUBST(XRANDR_CFLAGS)
3409 AC_SUBST(XRANDR_LIBS)
3411 ### Use Xinerama (-lXinerama) if available
3413 if test "${HAVE_X11}" = "yes"; then
3414 XINERAMA_REQUIRED=1.0.2
3415 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3416 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3417 if test $HAVE_XINERAMA = no; then
3418 # Test old way in case pkg-config doesn't have it (older machines).
3419 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3420 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3421 if test $HAVE_XINERAMA = yes; then
3422 XINERAMA_LIBS=-lXinerama
3425 if test $HAVE_XINERAMA = yes; then
3426 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3429 AC_SUBST(XINERAMA_CFLAGS)
3430 AC_SUBST(XINERAMA_LIBS)
3432 ### Use Xfixes (-lXfixes) if available
3434 if test "${HAVE_X11}" = "yes"; then
3435 XFIXES_REQUIRED=4.0.0
3436 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3437 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3438 if test $HAVE_XFIXES = no; then
3439 # Test old way in case pkg-config doesn't have it (older machines).
3440 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3441 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3442 if test $HAVE_XFIXES = yes; then
3443 XFIXES_LIBS=-lXfixes
3446 if test $HAVE_XFIXES = yes; then
3447 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3450 AC_SUBST(XFIXES_CFLAGS)
3451 AC_SUBST(XFIXES_LIBS)
3453 ### Use libxml (-lxml2) if available
3454 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3456 if test "${with_xml2}" != "no"; then
3457 ### I'm not sure what the version number should be, so I just guessed.
3458 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3459 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3460 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3461 SAVE_CPPFLAGS="$CPPFLAGS"
3462 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3463 AC_CHECK_HEADER(libxml/HTMLparser.h,
3464 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3465 [#include <libxml/HTMLparser.h>])])
3466 CPPFLAGS="$SAVE_CPPFLAGS"
3467 if test "${HAVE_LIBXML2}" = "yes"; then
3468 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3469 LIBXML2_LIBS="-lxml2"
3472 if test "${HAVE_LIBXML2}" = "yes"; then
3473 if test "${opsys}" != "mingw32"; then
3474 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3479 if test "${HAVE_LIBXML2}" = "yes"; then
3480 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3487 AC_SUBST(LIBXML2_LIBS)
3488 AC_SUBST(LIBXML2_CFLAGS)
3490 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3491 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3492 if test "${opsys}" = "mingw32"; then
3493 emacs_cv_netdb_declares_h_errno=yes
3495 AC_CACHE_CHECK(whether netdb declares h_errno,
3496 emacs_cv_netdb_declares_h_errno,
3497 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3498 [[return h_errno;]])],
3499 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3500 if test $emacs_cv_netdb_declares_h_errno = yes; then
3501 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3504 # Check for mail-locking functions in a "mail" library. Probably this should
3505 # have the same check as for liblockfile below.
3506 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3507 if test $have_mail = yes; then
3509 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3512 LIBS="$LIBS_MAIL $LIBS"
3513 AC_CHECK_FUNCS(touchlock)
3518 dnl Debian, at least:
3519 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3520 if test $have_lockfile = yes; then
3521 LIBS_MAIL=-llockfile
3522 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3524 # If we have the shared liblockfile, assume we must use it for mail
3525 # locking (e.g. Debian). If we couldn't link against liblockfile
3526 # (no liblockfile.a installed), ensure that we don't need to.
3527 dnl This works for files generally, not just executables.
3528 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3529 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3530 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3531 if test $ac_cv_prog_liblockfile = yes; then
3532 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3533 This probably means that movemail could lose mail.
3534 There may be a `development' package to install containing liblockfile.])
3537 AC_CHECK_HEADERS_ONCE(maillock.h)
3540 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3541 ## interlock access to the mail spool. The alternative is a lock file named
3542 ## /usr/spool/mail/$USER.lock.
3545 aix4-2) mail_lock="lockf" ;;
3547 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3549 ## On GNU/Linux systems, both methods are used by various mail programs.
3550 ## I assume most people are using newer mailers that have heard of flock.
3551 ## Change this if you need to.
3552 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3553 ## configure gets the right answers, and that means *NOT* using flock.
3554 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3555 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3556 ## Debian maintainer hasn't provided a clean fix for Emacs.
3557 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3558 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3559 ## correct logic. -- fx
3560 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3561 ## liblockfile is a Free Software replacement for libmail, used on
3562 ## Debian systems and elsewhere. -rfr.
3565 if test $have_mail = yes || test $have_lockfile = yes; then
3566 test $ac_cv_header_maillock_h = yes && mail_lock=no
3571 mail_lock="none-needed" ;;
3575 case "$mail_lock" in
3576 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3578 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3582 *) BLESSMAIL_TARGET="need-blessmail" ;;
3584 AC_SUBST(BLESSMAIL_TARGET)
3587 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3588 AC_CHECK_FUNCS(accept4 gethostname \
3589 getrusage get_current_dir_name \
3590 lrand48 random rint \
3591 select getpagesize setlocale \
3592 getrlimit setrlimit shutdown getaddrinfo \
3593 pthread_sigmask strsignal setitimer \
3594 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3596 getpwent endpwent getgrent endgrent \
3597 cfmakeraw cfsetspeed copysign __executable_start log2)
3600 dnl No need to check for aligned_alloc and posix_memalign if using
3601 dnl gmalloc.o, as it supplies them. Don't use these functions on
3602 dnl Darwin as they are incompatible with unexmacosx.c.
3603 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3604 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3607 dnl Cannot use AC_CHECK_FUNCS
3608 AC_CACHE_CHECK([for __builtin_unwind_init],
3609 emacs_cv_func___builtin_unwind_init,
3610 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3611 emacs_cv_func___builtin_unwind_init=yes,
3612 emacs_cv_func___builtin_unwind_init=no)])
3613 if test $emacs_cv_func___builtin_unwind_init = yes; then
3614 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3615 [Define to 1 if you have the `__builtin_unwind_init' function.])
3618 AC_CHECK_HEADERS_ONCE(sys/un.h)
3623 AC_CHECK_FUNCS(grantpt)
3625 # PTY-related GNU extensions.
3626 AC_CHECK_FUNCS(getpt posix_openpt)
3628 # Check this now, so that we will NOT find the above functions in ncurses.
3629 # That is because we have not set up to link ncurses in lib-src.
3630 # It's better to believe a function is not available
3631 # than to expect to find it in ncurses.
3632 # Also we need tputs and friends to be able to build at all.
3633 AC_MSG_CHECKING([for library containing tputs])
3634 # Run a test program that contains a call to tputs, a call that is
3635 # never executed. This tests whether a pre-'main' dynamic linker
3636 # works with the library. It's too much trouble to actually call
3637 # tputs in the test program, due to portability hassles. When
3638 # cross-compiling, assume the test program will run if it links.
3639 AC_DEFUN([tputs_link_source], [
3641 [[extern void tputs (const char *, int, int (*)(int));
3642 int main (int argc, char **argv)
3645 tputs (argv[0], 0, 0);
3649 if test "${opsys}" = "mingw32"; then
3652 # Maybe curses should be tried earlier?
3653 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3654 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3656 if test -z "$tputs_library"; then
3660 LIBS_TERMCAP=-l$tputs_library
3662 LIBS="$LIBS_TERMCAP $LIBS"
3664 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3665 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3667 if test "X$msg" != Xno; then
3672 AC_MSG_RESULT([$msg])
3673 if test "X$msg" = Xno; then
3674 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3675 The following libraries were tried (in order):
3676 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3677 Please try installing whichever of these libraries is most appropriate
3678 for your system, together with its header files.
3679 For example, a libncurses-dev(el) or similar package.])
3682 ## Use termcap instead of terminfo?
3683 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3685 ## FIXME? In the cases below where we unconditionally set
3686 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3687 ## if that was found above to have tputs.
3688 ## Should we use the gnu* logic everywhere?
3690 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3691 ## The ncurses library has been moved out of the System framework in
3692 ## Mac OS X 10.2. So if configure detects it, set the command-line
3693 ## option to use it.
3694 darwin) LIBS_TERMCAP="-lncurses" ;;
3696 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3699 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3700 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3701 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3702 [[#if __FreeBSD_version < 400000
3705 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3707 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3709 if test $emacs_cv_freebsd_terminfo = yes; then
3710 LIBS_TERMCAP="-lncurses"
3713 LIBS_TERMCAP="-ltermcap"
3723 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3725 LIBS_TERMCAP="-ltermcap"
3729 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3731 ## hpux: Make sure we get select from libc rather than from libcurses
3732 ## because libcurses on HPUX 10.10 has a broken version of select.
3733 ## We used to use -lc -lcurses, but this may be cleaner.
3734 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3735 # set that way, now it uses the default). Isn't this a contradiction?
3736 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3740 TERMCAP_OBJ=tparam.o
3741 if test $TERMINFO = yes; then
3742 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3743 TERMCAP_OBJ=terminfo.o
3745 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3746 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3748 AC_SUBST(LIBS_TERMCAP)
3749 AC_SUBST(TERMCAP_OBJ)
3751 # GNU/Linux-specific timer functions.
3752 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3754 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3756 [[timerfd_create (CLOCK_REALTIME, TFD_CLOEXEC);
3757 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3758 [emacs_cv_have_timerfd=yes],
3759 [emacs_cv_have_timerfd=no])])
3760 if test "$emacs_cv_have_timerfd" = yes; then
3761 AC_DEFINE([HAVE_TIMERFD], 1,
3762 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3765 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3766 # On Darwin, res_init appears not to be useful: see bug#562 and
3767 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3770 if test $opsys != darwin; then
3772 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3773 #include <arpa/nameser.h>
3774 #include <resolv.h>]],
3775 [[return res_init();]])],
3776 have_res_init=yes, have_res_init=no)
3777 if test "$have_res_init" = no; then
3779 LIBS="$LIBS -lresolv"
3780 AC_MSG_CHECKING(for res_init with -lresolv)
3781 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3782 #include <arpa/nameser.h>
3783 #include <resolv.h>]],
3784 [[return res_init();]])],
3785 have_res_init=yes, have_res_init=no)
3786 AC_MSG_RESULT($have_res_init)
3787 if test "$have_res_init" = yes ; then
3793 if test "$have_res_init" = yes; then
3794 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3798 # Do we need the Hesiod library to provide the support routines?
3799 dnl FIXME? Should we be skipping this on Darwin too?
3801 if test "$with_hesiod" != no ; then
3802 # Don't set $LIBS here -- see comments above. FIXME which comments?
3803 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3804 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3805 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3806 if test "$resolv" = yes ; then
3811 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3812 hesiod=yes, :, $RESOLVLIB)])
3814 if test x"$hesiod" = xyes; then
3820 # Do we need libresolv (due to res_init or Hesiod)?
3821 if test "$resolv" = yes && test $opsys != darwin; then
3828 # These tell us which Kerberos-related libraries to use.
3835 if test "${with_kerberos}" != no; then
3837 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3838 if test $have_com_err = yes; then
3839 COM_ERRLIB=-lcom_err
3840 LIBS="$COM_ERRLIB $LIBS"
3842 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3843 if test $have_crypto = yes; then
3845 LIBS="$CRYPTOLIB $LIBS"
3847 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3848 if test $have_k5crypto = yes; then
3849 CRYPTOLIB=-lk5crypto
3850 LIBS="$CRYPTOLIB $LIBS"
3852 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3853 if test $have_krb5=yes; then
3855 LIBS="$KRB5LIB $LIBS"
3857 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3858 if test "${with_kerberos5}" = no; then
3859 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3860 if test $have_des425 = yes; then
3862 LIBS="$DESLIB $LIBS"
3864 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3865 if test $have_des = yes; then
3867 LIBS="$DESLIB $LIBS"
3870 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3871 if test $have_krb4 = yes; then
3873 LIBS="$KRB4LIB $LIBS"
3875 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3876 if test $have_krb = yes; then
3878 LIBS="$KRB4LIB $LIBS"
3883 if test "${with_kerberos5}" != no; then
3884 AC_CHECK_HEADERS(krb5.h,
3885 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3886 [#include <krb5.h>])])
3888 AC_CHECK_HEADERS(krb.h,,
3889 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3890 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3892 AC_CHECK_HEADERS(com_err.h)
3896 AC_SUBST(COM_ERRLIB)
3902 AC_CHECK_HEADERS(valgrind/valgrind.h)
3904 AC_CHECK_FUNCS_ONCE(tzset)
3905 AC_MSG_CHECKING(whether localtime caches TZ)
3906 AC_CACHE_VAL(emacs_cv_localtime_cache,
3907 [if test x$ac_cv_func_tzset = xyes; then
3908 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3909 char TZ_GMT0[] = "TZ=GMT0";
3910 char TZ_PST8[] = "TZ=PST8";
3913 time_t now = time ((time_t *) 0);
3914 int hour_GMT0, hour_unset;
3915 if (putenv (TZ_GMT0) != 0)
3917 hour_GMT0 = localtime (&now)->tm_hour;
3919 hour_unset = localtime (&now)->tm_hour;
3920 if (putenv (TZ_PST8) != 0)
3922 if (localtime (&now)->tm_hour == hour_GMT0)
3925 if (localtime (&now)->tm_hour != hour_unset)
3928 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3929 [# If we have tzset, assume the worst when cross-compiling.
3930 emacs_cv_localtime_cache=yes])
3932 # If we lack tzset, report that localtime does not cache TZ,
3933 # since we can't invalidate the cache if we don't have tzset.
3934 emacs_cv_localtime_cache=no
3936 AC_MSG_RESULT($emacs_cv_localtime_cache)
3937 if test $emacs_cv_localtime_cache = yes; then
3938 AC_DEFINE(LOCALTIME_CACHE, 1,
3939 [Define to 1 if localtime caches TZ.])
3943 AC_CHECK_FUNC(socket, , ok_so_far=no)
3944 if test $ok_so_far = yes; then
3945 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3947 if test $ok_so_far = yes; then
3948 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3950 if test $ok_so_far = yes; then
3951 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3952 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3953 [Define to 1 if you have inet sockets.])
3958 AC_CHECK_FUNCS(snprintf)
3960 dnl Check for glib. This differs from other library checks in that
3961 dnl Emacs need not link to glib unless some other library is already
3962 dnl linking to glib. Although glib provides no facilities that Emacs
3963 dnl needs for its own purposes, when glib is present Emacs needs to
3964 dnl use primitives like g_main_context_query to avoid clashing with
3965 dnl glib at a low level.
3967 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3971 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3972 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3973 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3974 LIBS="$LIBS $GFILENOTIFY_LIBS"
3975 AC_MSG_CHECKING([whether GLib is linked in])
3976 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3979 [[g_print ("Hello world");]])],
3982 AC_MSG_RESULT([$links_glib])
3983 if test "${links_glib}" = "yes"; then
3984 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3985 if test "$HAVE_NS" = no;then
3993 dnl Adapted from Haible's version.
3994 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3995 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3996 [[char* cs = nl_langinfo(CODESET);]])],
3997 emacs_cv_langinfo_codeset=yes,
3998 emacs_cv_langinfo_codeset=no)
4000 if test $emacs_cv_langinfo_codeset = yes; then
4001 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4002 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4007 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
4008 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
4009 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
4010 if test "$emacs_cv_c_restrict_arr" = yes; then
4011 AC_DEFINE(__restrict_arr, __restrict,
4012 [Define to compiler's equivalent of C99 restrict keyword in array
4013 declarations. Define as empty for no equivalent.])
4016 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4017 dnl how the tty code is related to POSIX and/or other versions of termios.
4018 dnl The following looks like a useful start.
4020 dnl AC_SYS_POSIX_TERMIOS
4021 dnl if test $ac_cv_sys_posix_termios = yes; then
4022 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4023 dnl and macros for terminal control.])
4024 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4027 dnl Turned on June 1996 supposing nobody will mind it.
4028 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4029 if test "${opsys}" != "mingw32"; then
4030 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4031 in the full name stands for the login id.])
4034 dnl Everybody supports this, except MS.
4035 dnl Seems like the kind of thing we should be testing for, though.
4036 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4037 if test "${opsys}" != "mingw32"; then
4038 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4041 dnl Everybody supports this, except MS-DOS.
4042 dnl Seems like the kind of thing we should be testing for, though.
4043 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4044 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4045 4.2-compatible sockets.])
4047 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4049 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4050 a null file, or a data sink.])
4051 if test "${opsys}" = "mingw32"; then
4052 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4054 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4057 if test "${opsys}" = "mingw32"; then
4062 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4063 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4064 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4065 dnl decides that a command-line argument to be passed to a MinGW program
4066 dnl is a PATH-style list of directories. But that heuristics plays it
4067 dnl safe, and only does the replacement when it is _absolutely_ sure it
4068 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4069 dnl which breaks in-tree builds. So we do this manually instead.
4070 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4071 dnl be computed as ':' in MSYS Bash.
4074 dnl Everybody supports this, except MS-DOS.
4075 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4077 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4080 AC_DEFINE(DIRECTORY_SEP, ['/'],
4081 [Character that separates directories in a file name.])
4083 if test "${opsys}" = "mingw32"; then
4084 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4085 [Returns true if character is a device separator.])
4087 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4088 [Returns true if character is a directory separator.])
4090 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4091 [Returns true if character is any form of separator.])
4093 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4094 [Returns true if character is a device separator.])
4096 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4097 [Returns true if character is a directory separator.])
4099 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4100 [Returns true if character is any form of separator.])
4103 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4107 dnl Unfortunately without libXmu we cannot support EditRes.
4108 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4109 AC_DEFINE(NO_EDITRES, 1)
4114 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4115 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4116 AC_DEFINE(NO_EDITRES, 1)
4122 irix6-5 | sol2* | unixware )
4123 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4124 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4125 dnl need the constant to dimension an array. So wire in the appropriate
4127 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4131 emacs_broken_SIGIO=no
4134 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4135 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4136 hpux* | irix6-5 | openbsd | sol2* | unixware )
4137 emacs_broken_SIGIO=yes
4141 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4142 dnl the way this system works, libc functions that return malloced
4143 dnl memory use the libc malloc implementation. Calling xfree or
4144 dnl xrealloc on the results of such functions results in a crash.
4146 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4147 dnl but that does not currently work on this system.
4149 dnl It is possible to completely override the malloc implementation on
4150 dnl AIX, but that involves putting the malloc functions in a shared
4151 dnl library and setting the MALLOCTYPE environment variable to point to
4152 dnl that shared library.
4154 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4155 dnl to avoid a crash just use the Emacs implementation for that function.
4157 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4158 dnl of this file, so that we do not check for get_current_dir_name
4159 dnl on AIX. But that might be fragile if something else ends
4160 dnl up testing for get_current_dir_name as a dependency.
4161 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4162 get_current_dir_name should not be used.])
4166 dnl Circumvent a bug in FreeBSD. In the following sequence of
4167 dnl writes/reads on a PTY, read(2) returns bogus data:
4169 dnl write(2) 1022 bytes
4170 dnl write(2) 954 bytes, get EAGAIN
4171 dnl read(2) 1024 bytes in process_read_output
4172 dnl read(2) 11 bytes in process_read_output
4174 dnl That is, read(2) returns more bytes than have ever been written
4175 dnl successfully. The 1033 bytes read are the 1022 bytes written
4176 dnl successfully after processing (for example with CRs added if the
4177 dnl terminal is set up that way which it is here). The same bytes will
4178 dnl be seen again in a later read(2), without the CRs.
4179 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4180 work around an issue when reading from a PTY.])
4186 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4187 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4192 darwin | dragonfly | freebsd | netbsd | openbsd )
4193 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4194 close a pty to make it a controlling terminal (it is already a
4195 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4199 dnl FIXME Surely we can test for this rather than hard-code it.
4201 netbsd | openbsd) sound_device="/dev/audio" ;;
4202 *) sound_device="/dev/dsp" ;;
4206 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4207 [Name of the default sound device.])
4210 dnl Emacs can read input using SIGIO and buffering characters itself,
4211 dnl or using CBREAK mode and making C-g cause SIGINT.
4212 dnl The choice is controlled by the variable interrupt_input.
4214 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4216 dnl Emacs uses the presence of the USABLE_SIGIO macro
4217 dnl to indicate whether or not signal-driven I/O is possible. It uses
4218 dnl INTERRUPT_INPUT to decide whether to use it by default.
4220 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4221 dnl CBREAK mode has two disadvantages
4222 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4223 dnl I hear that in system V this problem does not exist.
4224 dnl 2) Control-G causes output to be discarded.
4225 dnl I do not know whether this can be fixed in system V.
4227 dnl Another method of doing input is planned but not implemented.
4228 dnl It would have Emacs fork off a separate process
4229 dnl to read the input and send it to the true Emacs process
4232 darwin | gnu-linux | gnu-kfreebsd )
4233 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4238 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4239 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4240 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4241 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4242 dnl taking float or double parameters.
4244 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4245 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4246 file defines `NeedWidePrototypes' as `NO'.])
4251 dnl Used in process.c, this must be a loop, even if it only runs once.
4252 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4253 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4254 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4255 dnl trying suffixes 0-16.
4256 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4257 first PTY, if PTYs are supported.])
4258 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4259 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4260 end of a PTY, if non-standard.])
4261 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4262 end of a PTY, if non-standard.])
4266 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4267 dnl You allocate a pty by opening /dev/ptc to get the master side.
4268 dnl To get the name of the slave side, you just ttyname() the master side.
4269 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4270 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4274 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4275 dnl multi-line AC_DEFINEs are hard. :(
4276 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)])
4277 AC_DEFINE(PTY_NAME_SPRINTF, [])
4278 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4281 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4283 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4284 dnl Not used, because PTY_ITERATION is defined.
4285 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4286 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4287 dnl But we don't have to block SIGCHLD because it is blocked in the
4288 dnl implementation of grantpt.
4289 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4290 AC_DEFINE(PTY_NAME_SPRINTF, [])
4291 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4295 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4298 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4300 if test "x$ac_cv_func_grantpt" = xyes; then
4301 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4302 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4303 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4304 dnl to prevent sigchld_handler from intercepting the child's death.
4305 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); }])
4306 dnl if HAVE_POSIX_OPENPT
4307 if test "x$ac_cv_func_posix_openpt" = xyes; then
4308 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4309 AC_DEFINE(PTY_NAME_SPRINTF, [])
4311 elif test "x$ac_cv_func_getpt" = xyes; then
4312 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4313 AC_DEFINE(PTY_NAME_SPRINTF, [])
4315 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4318 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4323 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4324 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4325 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4329 dnl It looks like this cannot be right, because it is not a loop.
4330 dnl However, process.c actually does this:
4336 dnl which presumably makes it OK, since irix == sgi (?).
4337 dnl FIXME it seems like this special treatment is unnecessary?
4338 dnl Why can't irix use a single-trip loop like eg cygwin?
4339 AC_DEFINE(PTY_ITERATION, [])
4340 dnl Not used, because PTY_ITERATION is defined.
4341 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4342 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
4343 dnl No need to get the pty name at all.
4344 AC_DEFINE(PTY_NAME_SPRINTF, [])
4345 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4346 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4350 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4351 dnl from intercepting that death. If any child but grantpt's should die
4352 dnl within, it should be caught after sigrelse(2).
4353 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); }])
4357 dnl Comments are as per sol2*.
4358 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); }])
4365 dnl This change means that we don't loop through allocate_pty too
4366 dnl many times in the (rare) event of a failure.
4367 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4368 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4369 dnl Push various streams modules onto a PTY channel. Used in process.c.
4370 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4375 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4376 "typing" a signal character on the pty.])
4379 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4380 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4381 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4382 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4385 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4386 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4387 gnu-linux | gnu-kfreebsd )
4389 AC_MSG_CHECKING([for signals via characters])
4390 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4391 #include <linux/version.h>
4392 #if LINUX_VERSION_CODE < 0x20400
4393 # error "Linux version too old"
4395 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4397 AC_MSG_RESULT([$emacs_signals_via_chars])
4398 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4403 AH_TEMPLATE(TAB3, [Undocumented.])
4406 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4408 gnu | dragonfly | freebsd | netbsd | openbsd )
4409 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4410 AC_DEFINE(TAB3, OXTABS)
4413 gnu-linux | gnu-kfreebsd )
4414 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4418 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4419 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4420 [Mark a secondary stack, like the register stack on the ia64.]), [])
4424 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4425 run_time_remap; for HPUX.])
4430 dnl This won't be used automatically yet. We also need to know, at least,
4431 dnl that the stack is continuous.
4432 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4433 registers relevant for conservative garbage collection in the jmp_buf.])
4437 dnl Not all the architectures are tested, but there are Debian packages
4438 dnl for SCM and/or Guile on them, so the technique must work. See also
4439 dnl comments in alloc.c concerning setjmp and gcc.
4440 dnl Fixme: it's probably safe to just use the GCC conditional below.
4441 gnu-linux | gnu-kfreebsd )
4442 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4443 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4444 || defined __alpha__ || defined __mips__ || defined __s390__ \
4445 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4446 || defined __ia64__ || defined __sh__
4449 # error "setjmp not known to work on this arch"
4451 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4456 if test x$GCC = xyes; then
4457 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4458 AC_DEFINE(GC_SETJMP_WORKS, 1)
4461 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4462 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4463 AC_DEFINE(GC_SETJMP_WORKS, 1)
4468 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4469 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4472 [[#include <setjmp.h>
4474 # define _longjmp longjmp
4479 _longjmp (j, 1);]])],
4480 [emacs_cv_func__setjmp=yes],
4481 [emacs_cv_func__setjmp=no])])
4482 if test $emacs_cv_func__setjmp = yes; then
4483 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4485 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4488 [[#include <setjmp.h>
4491 if (! sigsetjmp (j, 1))
4492 siglongjmp (j, 1);]])],
4493 [emacs_cv_func_sigsetjmp=yes],
4494 [emacs_cv_func_sigsetjmp=no])])
4495 if test $emacs_cv_func_sigsetjmp = yes; then
4496 AC_DEFINE([HAVE_SIGSETJMP], 1,
4497 [Define to 1 if sigsetjmp and siglongjmp work.
4498 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4504 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4505 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4506 dnl and this is all we need.
4507 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4514 dnl Used in xfaces.c.
4515 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4516 some systems, where it requires time.h.])
4521 dnl Define symbols to identify the version of Unix this is.
4522 dnl Define all the symbols that apply correctly.
4523 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4524 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4525 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4526 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4531 dnl This symbol should be defined on AIX Version 3 ???????
4532 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4534 # error "_AIX not defined"
4536 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4540 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4544 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4545 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4546 dnl distinguish OS X from pure Darwin.
4547 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4550 gnu-linux | gnu-kfreebsd )
4552 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4557 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4562 AC_DEFINE(USG5_4, [])
4563 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4567 AC_DEFINE(DOS_NT, [])
4568 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4569 if test "x$ac_enable_checking" != "x" ; then
4570 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4576 AC_DEFINE(USG5_4, [])
4577 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4582 AC_DEFINE(USG5_4, [])
4586 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4589 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4590 emacs_cv_usable_FIONREAD=no
4594 emacs_cv_usable_FIONREAD=yes
4599 [AC_LANG_PROGRAM([[#include <sys/types.h>
4600 #include <sys/ioctl.h>
4602 # include <sys/filio.h>
4605 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4606 [emacs_cv_usable_FIONREAD=yes],
4607 [emacs_cv_usable_FIONREAD=no])
4610 if test $emacs_cv_usable_FIONREAD = yes; then
4611 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4613 if test $emacs_broken_SIGIO = no; then
4614 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4616 [AC_LANG_PROGRAM([[#include <fcntl.h>
4619 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4620 [emacs_cv_usable_SIGIO=yes],
4621 [emacs_cv_usable_SIGIO=no])],
4622 [emacs_cv_usable_SIGIO=yes],
4623 [emacs_cv_usable_SIGIO=no])
4624 if test $emacs_cv_usable_SIGIO = yes; then
4625 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4632 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4633 dnl and on Cygwin prior to version 1.7.24 that becomes the
4634 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4635 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4636 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4637 dnl needed starting with cygwin-1.7.24, and it is no longer
4638 dnl effective starting with glib-2.36. */
4640 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4641 G_SLICE environment variable to "always-malloc" at startup.])
4645 dnl It works to open the pty's tty in the parent (Emacs), then
4646 dnl close and reopen it in the child.
4647 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4648 works to open a pty's tty in the parent process, then close and
4649 reopen it in the child.])
4653 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4654 use VSUSP instead of VSWTCH.])
4658 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4663 # Set up the CFLAGS for real compilation, so we can substitute it.
4664 CFLAGS="$REAL_CFLAGS"
4665 CPPFLAGS="$REAL_CPPFLAGS"
4668 ## Hack to detect a buggy GCC version.
4669 if test "x$GCC" = xyes \
4670 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4671 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4672 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4673 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4676 version=$PACKAGE_VERSION
4678 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4679 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4680 [Short copyright string for this version of Emacs.])
4683 ### Specify what sort of things we'll be editing into Makefile and config.h.
4684 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4686 AC_SUBST(configuration)
4691 AC_SUBST(exec_prefix)
4694 AC_SUBST(sharedstatedir)
4695 AC_SUBST(libexecdir)
4699 AC_SUBST(standardlisppath)
4700 AC_SUBST(locallisppath)
4702 AC_SUBST(x_default_search_path)
4704 AC_SUBST(archlibdir)
4709 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4710 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4711 ## end of LIBX_BASE, but nothing ever set it.
4712 AC_SUBST(LD_SWITCH_X_SITE)
4713 AC_SUBST(C_SWITCH_X_SITE)
4714 AC_SUBST(GNUSTEP_CFLAGS)
4716 ## Used in lwlib/Makefile.in.
4717 AC_SUBST(X_TOOLKIT_TYPE)
4719 AC_SUBST(ns_appbindir)
4720 AC_SUBST(ns_appresdir)
4722 AC_SUBST(GNU_OBJC_CFLAGS)
4723 AC_SUBST(OTHER_FILES)
4725 if test -n "${term_header}"; then
4726 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4727 [Define to the header for the built-in window system.])
4730 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4731 [Define to the canonical Emacs configuration name.])
4732 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4733 [Define to the options passed to configure.])
4734 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4735 define this to include extra configuration information.])
4739 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4746 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4747 AC_DEFINE(HAVE_X_WINDOWS, 1,
4748 [Define to 1 if you want to use the X window system.])
4750 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4752 if test "$HAVE_XFT" = "yes"; then
4753 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4754 elif test "$HAVE_FREETYPE" = "yes"; then
4755 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4765 if test "${USE_X_TOOLKIT}" != "none" ; then
4767 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4768 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4769 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4770 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4771 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4775 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4776 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4780 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4781 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4782 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4786 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4787 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4790 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4793 AC_SUBST(WIDGET_OBJ)
4796 case "$USE_X_TOOLKIT" in
4797 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4798 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4799 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4801 AC_SUBST(TOOLKIT_LIBW)
4803 if test "${opsys}" != "mingw32"; then
4804 if test "$USE_X_TOOLKIT" = "none"; then
4805 LIBXT_OTHER="\$(LIBXSM)"
4807 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4810 AC_SUBST(LIBXT_OTHER)
4812 if test "${HAVE_X11}" = "yes" ; then
4813 AC_DEFINE(HAVE_X11, 1,
4814 [Define to 1 if you want to use version 11 of X windows.])
4815 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4819 AC_SUBST(LIBX_OTHER)
4821 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4823 elif test "$USE_X_TOOLKIT" = none; then
4824 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4826 LIBXMENU='$(lwlibdir)/liblw.a'
4830 if test "${GNU_MALLOC}" = "yes" ; then
4831 AC_DEFINE(GNU_MALLOC, 1,
4832 [Define to 1 if you want to use the GNU memory allocator.])
4836 if test "${REL_ALLOC}" = "yes" ; then
4837 AC_DEFINE(REL_ALLOC, 1,
4838 [Define REL_ALLOC if you want to use the relocating allocator for
4841 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4843 AC_SUBST(RALLOC_OBJ)
4845 if test "$opsys" = "cygwin"; then
4846 CYGWIN_OBJ="sheap.o cygw32.o"
4847 ## Cygwin differs because of its unexec().
4849 POST_ALLOC_OBJ=lastfile.o
4850 elif test "$opsys" = "mingw32"; then
4853 POST_ALLOC_OBJ=lastfile.o
4856 PRE_ALLOC_OBJ=lastfile.o
4859 AC_SUBST(CYGWIN_OBJ)
4860 AC_SUBST(PRE_ALLOC_OBJ)
4861 AC_SUBST(POST_ALLOC_OBJ)
4863 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4864 dnl verbatim defined above. The tricky name is apropos, as this hack
4865 dnl makes Fortify go sour!
4866 AH_VERBATIM([FORTIFY_SOUR],
4867 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4868 The workaround disables some useful run-time checking, so it
4869 should be conditional to the platforms with the performance bug.
4870 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4871 #if defined __APPLE__ && defined __GNUC__
4872 # ifndef _DONT_USE_CTYPE_INLINE_
4873 # define _DONT_USE_CTYPE_INLINE_
4875 # ifndef _FORTIFY_SOURCE
4876 # define _FORTIFY_SOURCE 0
4881 # If user asks to omit features, disable optional features that gnulib
4882 # might otherwise enable.
4883 if test "$with_features" = no && test "$enable_acl" != yes; then
4887 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4888 # it temporarily reverts them to their pre-pkg-config values,
4889 # because gnulib needs to work with both src (which uses the
4890 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4891 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4892 # and it therefore needs to run in an environment where LIBS does not
4893 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4894 # for some package unrelated to lib-src.
4897 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4898 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4899 gl_ASSERT_NO_GNULIB_POSIXCHECK
4900 gl_ASSERT_NO_GNULIB_TESTS
4905 if test "${opsys}" = "mingw32"; then
4906 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4907 # Remove unneeded switches from the value of CC that goes to Makefiles
4908 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4912 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4915 ## The -headerpad option tells ld (see man page) to leave room at the
4916 ## end of the header for adding load commands. Needed for dumping.
4917 ## 0x690 is the total size of 30 segment load commands (at 56
4918 ## each); under Cocoa 31 commands are required.
4919 if test "$HAVE_NS" = "yes"; then
4920 libs_nsgui="-framework AppKit"
4921 if test "$NS_IMPL_COCOA" = "yes"; then
4922 libs_nsgui="$libs_nsgui -framework IOKit"
4929 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4931 ## This is here because src/Makefile.in did some extra fiddling around
4932 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4933 ## LD_SWITCH_SYSTEM_TEMACS instead,
4934 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4935 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4938 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4939 ## find X at run-time.
4940 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4941 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4942 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4943 ## had different values in configure (in ac_link) and src/Makefile.in.
4944 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4945 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4948 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4949 case "$canonical" in
4950 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4951 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4955 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4957 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4960 if test x$ac_enable_profiling != x ; then
4962 *freebsd | gnu-linux) ;;
4963 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4967 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4969 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4971 ## Common for all window systems
4972 if test "$window_system" != "none"; then
4973 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4974 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4975 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4978 AC_SUBST(WINDOW_SYSTEM_OBJ)
4980 AH_TOP([/* GNU Emacs site configuration template file.
4982 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4983 Free Software Foundation, Inc.
4985 This file is part of GNU Emacs.
4987 GNU Emacs is free software: you can redistribute it and/or modify
4988 it under the terms of the GNU General Public License as published by
4989 the Free Software Foundation, either version 3 of the License, or
4990 (at your option) any later version.
4992 GNU Emacs is distributed in the hope that it will be useful,
4993 but WITHOUT ANY WARRANTY; without even the implied warranty of
4994 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4995 GNU General Public License for more details.
4997 You should have received a copy of the GNU General Public License
4998 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5001 /* No code in Emacs #includes config.h twice, but some bits of code
5002 intended to work with other packages as well (like gmalloc.c)
5003 think they can include it as many times as they like. */
5004 #ifndef EMACS_CONFIG_H
5005 #define EMACS_CONFIG_H
5008 AH_BOTTOM([#include <conf_post.h>
5010 #endif /* EMACS_CONFIG_H */
5019 #### Report on what we decided to do.
5020 #### Report GTK as a toolkit, even if it doesn't use Xt.
5021 #### It makes printing result more understandable as using GTK sets
5022 #### toolkit_scroll_bars to yes by default.
5023 if test "${HAVE_GTK}" = "yes"; then
5024 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5027 if test $USE_ACL -ne 0; then
5028 ACL_SUMMARY="yes $LIB_ACL"
5034 Configured for \`${canonical}'.
5036 Where should the build process find the source code? ${srcdir}
5037 What compiler should emacs be built with? ${CC} ${CFLAGS}
5038 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5039 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5040 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5041 What window system should Emacs use? ${window_system}
5042 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5044 if test -n "${x_includes}"; then
5045 echo " Where do we find X Windows header files? ${x_includes}"
5047 echo " Where do we find X Windows header files? Standard dirs"
5049 if test -n "${x_libraries}"; then
5050 echo " Where do we find X Windows libraries? ${x_libraries}"
5052 echo " Where do we find X Windows libraries? Standard dirs"
5056 emacs_config_features=
5057 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5058 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5062 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5063 *) eval val=\${HAVE_$opt} ;;
5065 test x"$val" = xno && continue
5066 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5069 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5070 [Summary of some of the main features enabled by configure.])
5072 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5073 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5074 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5075 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5076 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5077 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5078 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5079 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5081 echo " Does Emacs support sound? ${HAVE_SOUND}"
5083 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5084 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5085 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5086 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5087 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5088 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5089 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5090 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5091 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5093 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5094 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5095 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5096 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5097 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5099 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5101 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
5102 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
5103 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
5106 if test -n "${EMACSDATA}"; then
5107 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5109 if test -n "${EMACSDOC}"; then
5110 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5115 if test "$HAVE_NS" = "yes"; then
5117 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5118 The installed application will go to nextstep/Emacs.app and can be
5119 run or moved from there."
5120 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5121 echo "The application will be fully self-contained."
5123 echo "The lisp resources for the application will be installed under ${prefix}.
5124 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5125 to run if these resources are not installed."
5130 if test "${opsys}" = "cygwin"; then
5132 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5138 # Remove any trailing slashes in these variables.
5139 [test "${prefix}" != NONE &&
5140 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5141 test "${exec_prefix}" != NONE &&
5142 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5144 if test "$HAVE_NS" = "yes"; then
5145 if test "$NS_IMPL_GNUSTEP" = yes; then
5146 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5147 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5148 ns_check_file=Resources/Info-gnustep.plist
5150 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5151 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5152 ns_check_file=Contents/Info.plist
5154 AC_SUBST(ns_check_file)
5157 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5158 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5159 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5160 dnl (else you get "no `Makefile.am' found for any configure output").
5161 dnl This will work, but you get a config.status that is not quite right
5162 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5163 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5164 dnl it seems better to just live with the duplication.
5165 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5167 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5168 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5169 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5170 leim/Makefile nextstep/Makefile nt/Makefile])
5172 dnl test/ is not present in release tarfiles.
5173 opt_makefile=test/automated/Makefile
5175 if test -f "$srcdir/$opt_makefile.in"; then
5176 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5177 dnl Again, it's best not to use a variable. Though you can add
5178 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5179 AC_CONFIG_FILES([test/automated/Makefile])
5183 dnl The admin/ directory used to be excluded from tarfiles.
5184 if test -d $srcdir/admin; then
5185 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5186 AC_CONFIG_FILES([admin/unidata/Makefile])
5187 AC_CONFIG_FILES([admin/grammars/Makefile])
5191 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5193 AC_SUBST(SUBDIR_MAKEFILES_IN)
5195 dnl You might wonder (I did) why epaths.h is generated by running make,
5196 dnl rather than just letting configure generate it from epaths.in.
5197 dnl One reason is that the various paths are not fully expanded (see above);
5198 dnl eg gamedir=${prefix}/var/games/emacs.
5199 dnl Secondly, the GNU Coding standards require that one should be able
5200 dnl to run `make prefix=/some/where/else' and override the values set
5201 dnl by configure. This also explains the `move-if-change' test and
5202 dnl the use of force in the `epaths-force' rule in Makefile.in.
5203 AC_CONFIG_COMMANDS([src/epaths.h], [
5204 if test "${opsys}" = "mingw32"; then
5205 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5207 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5208 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5209 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5211 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5212 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5214 AC_CONFIG_COMMANDS([src/.gdbinit], [
5215 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5216 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5222 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])