Fixed autoloads and byte compilation due to MSYS filename-butchering and xargs limita...
[bpt/emacs.git] / configure.ac
1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
3 dnl autoconf
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
6 dnl
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
8 dnl
9 dnl This file is part of GNU Emacs.
10 dnl
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.
15 dnl
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.
20 dnl
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/>.
23
24 AC_PREREQ(2.65)
25 AC_INIT(emacs, 24.3.50)
26
27 dnl This is the documented way to record the args passed to configure,
28 dnl rather than $ac_configure_args.
29 emacs_config_options="$@"
30 ## Add some environment variables, if they were passed via the environment
31 ## rather than on the command-line.
32 for var in CFLAGS CPPFLAGS LDFLAGS; do
33 case "$emacs_config_options" in
34 *$var=*) continue ;;
35 esac
36 eval val="\$${var}"
37 test x"$val" = x && continue
38 emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=\"$val\""
39 done
40
41 AC_CONFIG_HEADER(src/config.h:src/config.in)
42 AC_CONFIG_SRCDIR(src/lisp.h)
43 AC_CONFIG_AUX_DIR(build-aux)
44 dnl Fairly arbitrary, older versions might work too.
45 AM_INIT_AUTOMAKE(1.11)
46
47 dnl Support for --program-prefix, --program-suffix and
48 dnl --program-transform-name options
49 AC_ARG_PROGRAM
50
51 dnl It is important that variables on the RHS not be expanded here,
52 dnl hence the single quotes. This is per the GNU coding standards, see
53 dnl (autoconf) Installation Directory Variables
54 dnl See also epaths.h below.
55 lispdir='${datadir}/emacs/${version}/lisp'
56 leimdir='${datadir}/emacs/${version}/leim'
57 standardlisppath='${lispdir}:${leimdir}'
58 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
59 '${datadir}/emacs/site-lisp'
60 lisppath='${locallisppath}:${standardlisppath}'
61 etcdir='${datadir}/emacs/${version}/etc'
62 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
63 docdir='${datadir}/emacs/${version}/etc'
64 gamedir='${localstatedir}/games/emacs'
65
66 dnl Special option to disable the most of other options.
67 AC_ARG_WITH(all,
68 [AS_HELP_STRING([--without-all],
69 [omit almost all features and build
70 small executable with minimal dependencies])],
71 with_features=$withval,
72 with_features=yes)
73
74 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
75 dnl Create a new --with option that defaults to being disabled.
76 dnl NAME is the base name of the option. The shell variable with_NAME
77 dnl will be set to either the user's value (if the option is
78 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
79 dnl option is not specified). Note that the shell variable name is
80 dnl constructed as autoconf does, by replacing non-alphanumeric
81 dnl characters with "_".
82 dnl HELP-STRING is the help text for the option.
83 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
84 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
85 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
86 ])dnl
87
88 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
89 dnl Create a new --with option that defaults to $enable_features.
90 dnl NAME is the base name of the option. The shell variable with_NAME
91 dnl will be set either to 'no' (for a plain --without-NAME) or to
92 dnl 'yes' (if the option is not specified). Note that the shell
93 dnl variable name is constructed as autoconf does, by replacing
94 dnl non-alphanumeric characters with "_".
95 dnl HELP-STRING is the help text for the option.
96 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
97 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
98 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
99 ])dnl
100
101 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
102 if test "$with_pop" = yes; then
103 AC_DEFINE(MAIL_USE_POP)
104 fi
105 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
106
107 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
108 if test "$with_kerberos" != no; then
109 AC_DEFINE(KERBEROS)
110 fi
111 AH_TEMPLATE(KERBEROS,
112 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
113
114 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
115 if test "${with_kerberos5}" != no; then
116 if test "${with_kerberos}" = no; then
117 with_kerberos=yes
118 AC_DEFINE(KERBEROS)
119 fi
120 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
121 fi
122
123 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
124 dnl FIXME hesiod support may not be present, so it seems like an error
125 dnl to define, or at least use, this unconditionally.
126 if test "$with_hesiod" != no; then
127 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
128 fi
129
130 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
131 if test "$with_mmdf" != no; then
132 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
133 fi
134
135 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
136 if test "$with_mail_unlink" != no; then
137 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
138 fi
139
140 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
141 [string giving default POP mail host])],
142 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
143
144 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
145
146 dnl FIXME currently it is not the last.
147 dnl This should be the last --with option, because --with-x is
148 dnl added later on when we find the file name of X, and it's best to
149 dnl keep them together visually.
150 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
151 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
152 [ case "${withval}" in
153 y | ye | yes ) val=gtk ;;
154 n | no ) val=no ;;
155 l | lu | luc | luci | lucid ) val=lucid ;;
156 a | at | ath | athe | athen | athena ) val=athena ;;
157 m | mo | mot | moti | motif ) val=motif ;;
158 g | gt | gtk ) val=gtk ;;
159 gtk2 ) val=gtk2 ;;
160 gtk3 ) val=gtk3 ;;
161 * )
162 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
163 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
164 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
165 `athena' and `lucid' are synonyms.])
166 ;;
167 esac
168 with_x_toolkit=$val
169 ])
170
171 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
172 if test "$with_wide_int" = yes; then
173 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
174 fi
175
176 dnl _ON results in a '--without' option in the --help output, so
177 dnl the help text should refer to "don't compile", etc.
178 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
179 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
180 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
181 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
182 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
183 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
184 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
185 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
186
187 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
188 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
189 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
190
191 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
192 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
193 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
194 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
195 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
196
197 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
198 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
199 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
200 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
201 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
202 OPTION_DEFAULT_ON([acl],[don't compile with ACL support])
203 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
204 OPTION_DEFAULT_ON([inotify],[don't compile with inotify (file-watch) support])
205
206 ## For the times when you want to build Emacs but don't have
207 ## a suitable makeinfo, and can live without the manuals.
208 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
209 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
210
211 ## Makefile.in needs the cache file name.
212 AC_SUBST(cache_file)
213
214 ## This is an option because I do not know if all info/man support
215 ## compressed files, nor how to test if they do so.
216 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
217 if test $with_compress_info = yes; then
218 GZIP_INFO=yes
219 else
220 GZIP_INFO=
221 fi
222 AC_SUBST(GZIP_INFO)
223
224 AC_ARG_WITH([pkg-config-prog],dnl
225 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
226 [file name of pkg-config for finding GTK and librsvg])])
227 if test "X${with_pkg_config_prog}" != X; then
228 if test "${with_pkg_config_prog}" != yes; then
229 PKG_CONFIG="${with_pkg_config_prog}"
230 fi
231 fi
232
233 AC_ARG_WITH(gameuser,dnl
234 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
235 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
236 && gameuser="${with_gameuser}"
237 test "X$gameuser" = X && gameuser=games
238
239 AC_ARG_WITH([gnustep-conf],dnl
240 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
241 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
242 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
243 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
244 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
245 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
246
247 AC_ARG_ENABLE(ns-self-contained,
248 [AS_HELP_STRING([--disable-ns-self-contained],
249 [disable self contained build under NeXTstep])],
250 EN_NS_SELF_CONTAINED=$enableval,
251 EN_NS_SELF_CONTAINED=yes)
252
253 AC_ARG_ENABLE(locallisppath,
254 [AS_HELP_STRING([--enable-locallisppath=PATH],
255 [directories Emacs should search for lisp files specific
256 to this site])],
257 if test "${enableval}" = "no"; then
258 locallisppath=
259 elif test "${enableval}" != "yes"; then
260 locallisppath=${enableval}
261 fi)
262
263 AC_ARG_ENABLE(checking,
264 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
265 [enable expensive run-time checks. With LIST,
266 enable only specific categories of checks.
267 Categories are: all,yes,no.
268 Flags are: stringbytes, stringoverrun, stringfreelist,
269 xmallocoverrun, conslist, glyphs])],
270 [ac_checking_flags="${enableval}"],[])
271 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
272 for check in $ac_checking_flags
273 do
274 case $check in
275 # these set all the flags to specific states
276 yes) ac_enable_checking=1 ;;
277 no) ac_enable_checking= ;
278 ac_gc_check_stringbytes= ;
279 ac_gc_check_string_overrun= ;
280 ac_gc_check_string_free_list= ;
281 ac_xmalloc_overrun= ;
282 ac_gc_check_cons_list= ;
283 ac_glyphs_debug= ;;
284 all) ac_enable_checking=1 ;
285 ac_gc_check_stringbytes=1 ;
286 ac_gc_check_string_overrun=1 ;
287 ac_gc_check_string_free_list=1 ;
288 ac_xmalloc_overrun=1 ;
289 ac_gc_check_cons_list=1 ;
290 ac_glyphs_debug=1 ;;
291 # these enable particular checks
292 stringbytes) ac_gc_check_stringbytes=1 ;;
293 stringoverrun) ac_gc_check_string_overrun=1 ;;
294 stringfreelist) ac_gc_check_string_free_list=1 ;;
295 xmallocoverrun) ac_xmalloc_overrun=1 ;;
296 conslist) ac_gc_check_cons_list=1 ;;
297 glyphs) ac_glyphs_debug=1 ;;
298 *) AC_MSG_ERROR(unknown check category $check) ;;
299 esac
300 done
301 IFS="$ac_save_IFS"
302
303 if test x$ac_enable_checking != x ; then
304 AC_DEFINE(ENABLE_CHECKING, 1,
305 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
306 fi
307 if test x$ac_gc_check_stringbytes != x ; then
308 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
309 [Define this temporarily to hunt a bug. If defined, the size of
310 strings is redundantly recorded in sdata structures so that it can
311 be compared to the sizes recorded in Lisp strings.])
312 fi
313 if test x$ac_gc_check_string_overrun != x ; then
314 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
315 [Define this to check for short string overrun.])
316 fi
317 if test x$ac_gc_check_string_free_list != x ; then
318 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
319 [Define this to check the string free list.])
320 fi
321 if test x$ac_xmalloc_overrun != x ; then
322 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
323 [Define this to check for malloc buffer overrun.])
324 fi
325 if test x$ac_gc_check_cons_list != x ; then
326 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
327 [Define this to check for errors in cons list.])
328 fi
329 if test x$ac_glyphs_debug != x ; then
330 AC_DEFINE(GLYPH_DEBUG, 1,
331 [Define this to enable glyphs debugging code.])
332 fi
333
334 AC_ARG_ENABLE(check-lisp-object-type,
335 [AS_HELP_STRING([--enable-check-lisp-object-type],
336 [enable compile time checks for the Lisp_Object data type.
337 This is useful for development for catching certain types of bugs.])],
338 if test "${enableval}" != "no"; then
339 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
340 [Define this to enable compile time checks for the Lisp_Object data type.])
341 fi)
342
343
344 dnl The name of this option is unfortunate. It predates, and has no
345 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
346 dnl Actually, it stops it working.
347 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
348 AC_ARG_ENABLE(profiling,
349 [AS_HELP_STRING([--enable-profiling],
350 [build emacs with low-level, gprof profiling support.
351 Mainly useful for debugging Emacs itself. May not work on
352 all platforms. Stops profiler.el working.])],
353 [ac_enable_profiling="${enableval}"],[])
354 if test x$ac_enable_profiling != x ; then
355 PROFILING_CFLAGS="-DPROFILING=1 -pg"
356 else
357 PROFILING_CFLAGS=
358 fi
359 AC_SUBST(PROFILING_CFLAGS)
360
361 AC_ARG_ENABLE(autodepend,
362 [AS_HELP_STRING([--enable-autodepend],
363 [automatically generate dependencies to .h-files.
364 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
365 found])],
366 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
367
368 AC_ARG_ENABLE(gtk-deprecation-warnings,
369 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
370 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
371 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
372
373 #### Make srcdir absolute, if it isn't already. It's important to
374 #### avoid running the file name through pwd unnecessarily, since pwd can
375 #### give you automounter prefixes, which can go away. We do all this
376 #### so Emacs can find its files when run uninstalled.
377 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
378 unset CDPATH
379 case "${srcdir}" in
380 [[\\/]]* | ?:[[\\/]]*) ;;
381 . )
382 ## We may be able to use the $PWD environment variable to make this
383 ## absolute. But sometimes PWD is inaccurate.
384 ## Note: we used to use $PWD at the end instead of `pwd`,
385 ## but that tested only for a well-formed and valid PWD,
386 ## it did not object when PWD was well-formed and valid but just wrong.
387 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
388 then
389 srcdir="$PWD"
390 else
391 srcdir=`(cd "$srcdir"; pwd)`
392 fi
393 ;;
394 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
395 esac
396
397 ### Canonicalize the configuration name.
398
399 AC_CANONICAL_HOST
400 canonical=$host
401 configuration=${host_alias-${build_alias-$host}}
402
403 dnl This used to use changequote, but, apart from `changequote is evil'
404 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
405 dnl the great gob of text. Thus it's not processed for possible expansion.
406 dnl Just make sure the brackets remain balanced.
407 dnl
408 dnl Since Emacs can't find matching pairs of quotes, boundaries are
409 dnl indicated by comments.
410 dnl quotation begins
411 [
412
413 ### If you add support for a new configuration, add code to this
414 ### switch statement to recognize your configuration name and select
415 ### the appropriate operating system file.
416
417 ### You would hope that you could choose an s/*.h
418 ### file based on the operating system portion. However, it turns out
419 ### that each s/*.h file is pretty manufacturer-specific.
420 ### So we basically have to have a special case for each
421 ### configuration name.
422 ###
423 ### As far as handling version numbers on operating systems is
424 ### concerned, make sure things will fail in a fixable way. If
425 ### /etc/MACHINES doesn't say anything about version numbers, be
426 ### prepared to handle anything reasonably. If version numbers
427 ### matter, be sure /etc/MACHINES says something about it.
428
429 opsys='' unported=no
430 case "${canonical}" in
431
432 ## GNU/Linux and similar ports
433 *-*-linux* )
434 opsys=gnu-linux
435 ;;
436
437 ## FreeBSD ports
438 *-*-freebsd* )
439 opsys=freebsd
440 ;;
441
442 ## FreeBSD kernel + glibc based userland
443 *-*-kfreebsd*gnu* )
444 opsys=gnu-kfreebsd
445 ;;
446
447 ## NetBSD ports
448 *-*-netbsd* )
449 opsys=netbsd
450 ;;
451
452 ## OpenBSD ports
453 *-*-openbsd* )
454 opsys=openbsd
455 ;;
456
457 ## Apple Darwin / Mac OS X
458 *-apple-darwin* )
459 case "${canonical}" in
460 i[3456]86-* ) ;;
461 powerpc-* ) ;;
462 x86_64-* ) ;;
463 * ) unported=yes ;;
464 esac
465 opsys=darwin
466 ## Use fink packages if available.
467 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
468 ## if test -d /sw/include && test -d /sw/lib; then
469 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
470 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
471 ## fi
472 ;;
473
474 ## HP 9000 series 700 and 800, running HP/UX
475 hppa*-hp-hpux10.2* )
476 opsys=hpux10-20
477 ;;
478 hppa*-hp-hpux1[1-9]* )
479 opsys=hpux11
480 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
481 ;;
482
483 ## IBM machines
484 rs6000-ibm-aix4.[23]* )
485 opsys=aix4-2
486 ;;
487 powerpc-ibm-aix4.[23]* )
488 opsys=aix4-2
489 ;;
490 rs6000-ibm-aix[56]* )
491 opsys=aix4-2
492 ;;
493 powerpc-ibm-aix[56]* )
494 opsys=aix4-2
495 ;;
496
497 ## Silicon Graphics machines
498 ## Iris 4D
499 mips-sgi-irix6.5 )
500 opsys=irix6-5
501 # Without defining _LANGUAGE_C, things get masked out in the headers
502 # so that, for instance, grepping for `free' in stdlib.h fails and
503 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
504 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
505 ;;
506
507 ## Suns
508 *-sun-solaris* \
509 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
510 | x86_64-*-solaris2* | x86_64-*-sunos5*)
511 case "${canonical}" in
512 i[3456]86-*-* ) ;;
513 amd64-*-*|x86_64-*-*) ;;
514 sparc* ) ;;
515 * ) unported=yes ;;
516 esac
517 case "${canonical}" in
518 *-sunos5.6* | *-solaris2.6* )
519 opsys=sol2-6
520 RANLIB="ar -ts"
521 ;;
522 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
523 opsys=sol2-6
524 emacs_check_sunpro_c=yes
525 ;;
526 *-sunos5* | *-solaris* )
527 opsys=sol2-10
528 emacs_check_sunpro_c=yes
529 ;;
530 esac
531 ## Watch out for a compiler that we know will not work.
532 case "${canonical}" in
533 *-solaris* | *-sunos5* )
534 if [ "x$CC" = x/usr/ucb/cc ]; then
535 ## /usr/ucb/cc doesn't work;
536 ## we should find some other compiler that does work.
537 unset CC
538 fi
539 ;;
540 *) ;;
541 esac
542 ;;
543
544 ## Intel 386 machines where we don't care about the manufacturer.
545 i[3456]86-*-* )
546 case "${canonical}" in
547 *-cygwin ) opsys=cygwin ;;
548 *-darwin* ) opsys=darwin ;;
549 *-mingw32 )
550 opsys=mingw32
551 # MinGW overrides and adds some system headers in nt/inc.
552 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
553 ;;
554 *-sysv4.2uw* ) opsys=unixware ;;
555 *-sysv5uw* ) opsys=unixware ;;
556 *-sysv5OpenUNIX* ) opsys=unixware ;;
557 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
558 esac
559 ;;
560
561 * )
562 unported=yes
563 ;;
564 esac
565
566 ### If the code above didn't choose an operating system, just choose
567 ### an operating system based on the configuration name. You really
568 ### only want to use this when you have no idea what the right
569 ### operating system is; if you know what operating systems a machine
570 ### runs, it's cleaner to make it explicit in the case statement
571 ### above.
572 if test x"${opsys}" = x; then
573 case "${canonical}" in
574 *-gnu* ) opsys=gnu ;;
575 * )
576 unported=yes
577 ;;
578 esac
579 fi
580
581 ]
582 dnl quotation ends
583
584 if test $unported = yes; then
585 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
586 Check `etc/MACHINES' for recognized configuration names.])
587 fi
588
589
590 #### Choose a compiler.
591
592 dnl Sets GCC=yes if using gcc.
593 AC_PROG_CC
594 AM_PROG_CC_C_O
595
596 if test x$GCC = xyes; then
597 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
598 else
599 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
600 fi
601
602 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
603 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
604 dnl that clash with MinGW.
605 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
606
607 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
608 # as we don't use them.
609 AC_DEFUN([gl_FCNTL_O_FLAGS])
610 # Avoid gnulib's threadlib module, as we do threads our own way.
611 AC_DEFUN([gl_THREADLIB])
612
613 # Initialize gnulib right after choosing the compiler.
614 dnl Amongst other things, this sets AR and ARFLAGS.
615 gl_EARLY
616
617 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
618 # if -g3 works and the user does not specify CFLAGS.
619 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
620 if test "$ac_test_CFLAGS" != set; then
621 case $CFLAGS in
622 '-g')
623 emacs_g3_CFLAGS='-g3';;
624 '-g -O2')
625 emacs_g3_CFLAGS='-g3 -O2';;
626 *)
627 emacs_g3_CFLAGS='';;
628 esac
629 if test -n "$emacs_g3_CFLAGS"; then
630 emacs_save_CFLAGS=$CFLAGS
631 CFLAGS=$emacs_g3_CFLAGS
632 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
633 [emacs_cv_prog_cc_g3],
634 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
635 [emacs_cv_prog_cc_g3=yes],
636 [emacs_cv_prog_cc_g3=no])])
637 if test $emacs_cv_prog_cc_g3 = yes; then
638 CFLAGS=$emacs_g3_CFLAGS
639 else
640 CFLAGS=$emacs_save_CFLAGS
641 fi
642 if test $opsys = mingw32; then
643 CFLAGS="$CFLAGS -gdwarf-2"
644 fi
645 fi
646 fi
647
648 AC_ARG_ENABLE([gcc-warnings],
649 [AS_HELP_STRING([--enable-gcc-warnings],
650 [turn on lots of GCC warnings/errors. This is intended for
651 developers, and may generate false alarms when used
652 with older or non-GNU development tools.])],
653 [case $enableval in
654 yes|no) ;;
655 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
656 esac
657 gl_gcc_warnings=$enableval],
658 [gl_gcc_warnings=no]
659 )
660
661 AC_ARG_ENABLE(link-time-optimization,
662 [AS_HELP_STRING([--enable-link-time-optimization],
663 [build emacs with link-time optimization.
664 This is supported only for GCC since 4.5.0.])],
665 if test "${enableval}" != "no"; then
666 AC_MSG_CHECKING([whether link-time optimization is supported])
667 ac_lto_supported=no
668 if test x$GCC = xyes; then
669 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
670 if test x$CPUS != x; then
671 LTO="-flto=$CPUS"
672 else
673 LTO="-flto"
674 fi
675 old_CFLAGS=$CFLAGS
676 CFLAGS="$CFLAGS $LTO"
677 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
678 [ac_lto_supported=yes], [ac_lto_supported=no])
679 CFLAGS="$old_CFLAGS"
680 fi
681 AC_MSG_RESULT([$ac_lto_supported])
682 if test "$ac_lto_supported" = "yes"; then
683 CFLAGS="$CFLAGS $LTO"
684 fi
685 fi)
686
687 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
688 # ------------------------------------------------
689 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
690 # Otherwise, run RUN-IF-NOT-FOUND.
691 AC_DEFUN([gl_GCC_VERSION_IFELSE],
692 [AC_PREPROC_IFELSE(
693 [AC_LANG_PROGRAM(
694 [[
695 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
696 /* ok */
697 #else
698 # error "your version of gcc is older than $1.$2"
699 #endif
700 ]]),
701 ], [$3], [$4])
702 ]
703 )
704
705 # When compiling with GCC, prefer -isystem to -I when including system
706 # include files, to avoid generating useless diagnostics for the files.
707 if test "$gl_gcc_warnings" != yes; then
708 isystem='-I'
709 else
710 isystem='-isystem '
711
712 # This, $nw, is the list of warnings we disable.
713 nw=
714
715 case $with_x_toolkit in
716 lucid | athena | motif)
717 # Old toolkits mishandle 'const'.
718 nw="$nw -Wwrite-strings"
719 ;;
720 *)
721 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
722 ;;
723 esac
724 AC_SUBST([WERROR_CFLAGS])
725
726 nw="$nw -Waggregate-return" # anachronistic
727 nw="$nw -Wlong-long" # C90 is anachronistic
728 nw="$nw -Wc++-compat" # We don't care about C++ compilers
729 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
730 nw="$nw -Wtraditional" # Warns on #elif which we use often
731 nw="$nw -Wcast-qual" # Too many warnings for now
732 nw="$nw -Wconversion" # Too many warnings for now
733 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
734 nw="$nw -Wsign-conversion" # Too many warnings for now
735 nw="$nw -Woverlength-strings" # Not a problem these days
736 nw="$nw -Wtraditional-conversion" # Too many warnings for now
737 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
738 nw="$nw -Wpadded" # Our structs are not padded
739 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
740 nw="$nw -Wlogical-op" # any use of fwrite provokes this
741 nw="$nw -Wformat-nonliteral" # we do this a lot
742 nw="$nw -Wvla" # warnings in gettext.h
743 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
744 nw="$nw -Wswitch-enum" # Too many warnings for now
745 nw="$nw -Wswitch-default" # Too many warnings for now
746 nw="$nw -Wfloat-equal" # warns about high-quality code
747 nw="$nw -Winline" # OK to ignore 'inline'
748 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
749 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
750 # signed overflow has undefined behavior
751 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
752 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
753
754 # Emacs doesn't care about shadowing; see
755 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
756 nw="$nw -Wshadow"
757
758 # Emacs's use of alloca inhibits protecting the stack.
759 nw="$nw -Wstack-protector"
760
761 # The following line should be removable at some point.
762 nw="$nw -Wsuggest-attribute=pure"
763
764 gl_MANYWARN_ALL_GCC([ws])
765 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
766 for w in $ws; do
767 gl_WARN_ADD([$w])
768 done
769 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
770 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
771 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
772 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
773 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
774 gl_WARN_ADD([-Wno-format-nonliteral])
775
776 # In spite of excluding -Wlogical-op above, it is enabled, as of
777 # gcc 4.5.0 20090517.
778 gl_WARN_ADD([-Wno-logical-op])
779
780 gl_WARN_ADD([-fdiagnostics-show-option])
781 gl_WARN_ADD([-funit-at-a-time])
782
783 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
784 AH_VERBATIM([FORTIFY_SOURCE],
785 [/* Enable compile-time and run-time bounds-checking, and some warnings,
786 without upsetting glibc 2.15+. */
787 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
788 # define _FORTIFY_SOURCE 2
789 #endif
790 ])
791 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
792
793 # We use a slightly smaller set of warning options for lib/.
794 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
795 nw=
796 nw="$nw -Wunused-macros"
797
798 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
799 AC_SUBST([GNULIB_WARN_CFLAGS])
800 fi
801
802
803
804 dnl Some other nice autoconf tests.
805 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
806 dnl AC_PROG_INSTALL
807 dnl AC_PROG_MKDIR_P
808 dnl if test "x$RANLIB" = x; then
809 dnl AC_PROG_RANLIB
810 dnl fi
811 AC_PROG_LN_S
812
813 AC_PATH_PROG(INSTALL_INFO, install-info, :,
814 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
815 dnl Don't use GZIP, which is used by gzip for additional parameters.
816 AC_PATH_PROG(GZIP_PROG, gzip)
817
818 if test $opsys = gnu-linux; then
819 AC_PATH_PROG(PAXCTL, paxctl,,
820 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
821 if test "X$PAXCTL" != X; then
822 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
823 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
824 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
825 else AC_MSG_RESULT(no); PAXCTL=""; fi])
826 fi
827 fi
828
829 ## Need makeinfo >= 4.7 (?) to build the manuals.
830 AC_PATH_PROG(MAKEINFO, makeinfo, no)
831 dnl By this stage, configure has already checked for egrep and set EGREP,
832 dnl or exited with an error if no egrep was found.
833 if test "$MAKEINFO" != "no"; then
834 case `
835 $MAKEINFO --version 2> /dev/null |
836 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
837 ` in
838 '') MAKEINFO=no;;
839 esac
840 fi
841
842 ## Makeinfo is unusual. For a released Emacs, the manuals are
843 ## pre-built, and not deleted by the normal clean rules. makeinfo is
844 ## therefore in the category of "special tools" not normally required, which
845 ## configure does not have to check for (eg autoconf itself).
846 ## In a Bazaar checkout on the other hand, the manuals are not included.
847 ## So makeinfo is a requirement to build from Bazaar, and configure
848 ## should test for it as it does for any other build requirement.
849 ## We use the presence of $srcdir/info/emacs to distinguish a release,
850 ## with pre-built manuals, from a Bazaar checkout.
851 HAVE_MAKEINFO=yes
852
853 if test "$MAKEINFO" = "no"; then
854 MAKEINFO=makeinfo
855 if test "x${with_makeinfo}" = "xno"; then
856 HAVE_MAKEINFO=no
857 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
858 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
859 source tree does not seem to have pre-built manuals in the `info' directory.
860 Either install a suitable version of makeinfo, or re-run configure
861 with the `--without-makeinfo' option to build without the manuals.] )
862 fi
863 fi
864 AC_SUBST(HAVE_MAKEINFO)
865
866 dnl Just so that there is only a single place we need to edit.
867 INFO_EXT=.info
868 INFO_OPTS=--no-split
869 AC_SUBST(INFO_EXT)
870 AC_SUBST(INFO_OPTS)
871
872 dnl Add our options to ac_link now, after it is set up.
873
874 if test x$GCC = xyes; then
875 test "x$GCC_LINK_TEST_OPTIONS" != x && \
876 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
877 else
878 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
879 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
880 fi
881
882 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
883 dnl If we can link with the flag, it shouldn't do any harm anyhow.
884 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
885 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
886 dnl if not built to support GNU ld.
887
888 late_LDFLAGS=$LDFLAGS
889 if test x$GCC = xyes; then
890 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
891 else
892 LDFLAGS="$LDFLAGS -znocombreloc"
893 fi
894
895 AC_MSG_CHECKING([for -znocombreloc])
896 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
897 [AC_MSG_RESULT(yes)],
898 LDFLAGS=$late_LDFLAGS
899 [AC_MSG_RESULT(no)])
900
901
902 dnl The function dump-emacs will not be defined and temacs will do
903 dnl (load "loadup") automatically unless told otherwise.
904 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
905 case "$opsys" in
906 your-opsys-here) CANNOT_DUMP=yes ;;
907 esac
908
909 test "$CANNOT_DUMP" = "yes" && \
910 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
911
912 AC_SUBST(CANNOT_DUMP)
913
914
915 UNEXEC_OBJ=unexelf.o
916 case "$opsys" in
917 # MSDOS uses unexcoff.o
918 aix4-2)
919 UNEXEC_OBJ=unexaix.o
920 ;;
921 cygwin)
922 UNEXEC_OBJ=unexcw.o
923 ;;
924 darwin)
925 UNEXEC_OBJ=unexmacosx.o
926 ;;
927 hpux10-20 | hpux11)
928 UNEXEC_OBJ=unexhp9k800.o
929 ;;
930 mingw32)
931 UNEXEC_OBJ=unexw32.o
932 ;;
933 sol2-10)
934 # Use the Solaris dldump() function, called from unexsol.c, to dump
935 # emacs, instead of the generic ELF dump code found in unexelf.c.
936 # The resulting binary has a complete symbol table, and is better
937 # for debugging and other observability tools (debuggers, pstack, etc).
938 #
939 # If you encounter a problem using dldump(), please consider sending
940 # a message to the OpenSolaris tools-linking mailing list:
941 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
942 #
943 # It is likely that dldump() works with older Solaris too, but this has
944 # not been tested, so for now this change is for Solaris 10 or newer.
945 UNEXEC_OBJ=unexsol.o
946 ;;
947 esac
948
949 LD_SWITCH_SYSTEM=
950 case "$opsys" in
951 freebsd)
952 ## Let `ld' find image libs and similar things in /usr/local/lib.
953 ## The system compiler, GCC, has apparently been modified to not
954 ## look there, contrary to what a stock GCC would do.
955 ### It's not our place to do this. See bug#10313#17.
956 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
957 :
958 ;;
959
960 gnu-linux)
961 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
962 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
963 ;;
964
965 netbsd)
966 ### It's not our place to do this. See bug#10313#17.
967 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
968 :
969 ;;
970
971 openbsd)
972 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
973 ## otherwise Emacs dumps core on elf systems.
974 LD_SWITCH_SYSTEM="-Z"
975 ;;
976 esac
977 AC_SUBST(LD_SWITCH_SYSTEM)
978
979 ac_link="$ac_link $LD_SWITCH_SYSTEM"
980
981 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
982 ## which has not been defined yet. When this was handled with cpp,
983 ## it was expanded to null when configure sourced the s/*.h file.
984 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
985 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
986 ## (or somesuch), but because it is supposed to go at the _front_
987 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
988 ## Compare with the gnu-linux case below, which added to the end
989 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
990 ## LD_SWITCH_SYSTEM_TEMACS.
991 case "$opsys" in
992 netbsd|openbsd)
993 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
994 esac
995
996
997 C_SWITCH_MACHINE=
998 case $canonical in
999 alpha*)
1000 AC_CHECK_DECL([__ELF__])
1001 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1002 ## With ELF, make sure that all common symbols get allocated to in the
1003 ## data section. Otherwise, the dump of temacs may miss variables in
1004 ## the shared library that have been initialized. For example, with
1005 ## GNU libc, __malloc_initialized would normally be resolved to the
1006 ## shared library's .bss section, which is fatal.
1007 if test "x$GCC" = "xyes"; then
1008 C_SWITCH_MACHINE="-fno-common"
1009 else
1010 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1011 fi
1012 else
1013 UNEXEC_OBJ=unexalpha.o
1014 fi
1015 ;;
1016 esac
1017 AC_SUBST(C_SWITCH_MACHINE)
1018
1019 AC_SUBST(UNEXEC_OBJ)
1020
1021 C_SWITCH_SYSTEM=
1022 ## Some programs in src produce warnings saying certain subprograms
1023 ## are too complex and need a MAXMEM value greater than 2000 for
1024 ## additional optimization. --nils@exp-math.uni-essen.de
1025 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1026 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1027 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1028 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1029 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1030 AC_SUBST(C_SWITCH_SYSTEM)
1031
1032
1033 LIBS_SYSTEM=
1034 case "$opsys" in
1035 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1036 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1037
1038 freebsd) LIBS_SYSTEM="-lutil" ;;
1039
1040 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1041
1042 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1043
1044 ## Motif needs -lgen.
1045 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1046 esac
1047
1048 AC_SUBST(LIBS_SYSTEM)
1049
1050 ### Make sure subsequent tests use flags consistent with the build flags.
1051
1052 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1053 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1054 else
1055 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1056 fi
1057
1058 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1059 AC_DEFUN([AC_TYPE_SIZE_T])
1060 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1061 AC_DEFUN([AC_TYPE_UID_T])
1062
1063
1064 LIB_MATH=-lm
1065 dnl Current possibilities handled by sed (aix4-2 -> aix,
1066 dnl gnu-linux -> gnu/linux, etc.):
1067 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1068 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1069 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1070
1071 case $opsys in
1072 cygwin )
1073 LIB_MATH=
1074 ;;
1075 darwin )
1076 ## Adding -lm confuses the dynamic linker, so omit it.
1077 LIB_MATH=
1078 ;;
1079 freebsd )
1080 SYSTEM_TYPE=berkeley-unix
1081 ;;
1082 gnu-linux | gnu-kfreebsd )
1083 ;;
1084 hpux10-20 | hpux11 )
1085 ;;
1086 mingw32 )
1087 LIB_MATH=
1088 SYSTEM_TYPE=windows-nt
1089 ;;
1090 dnl NB this may be adjusted below.
1091 netbsd | openbsd )
1092 SYSTEM_TYPE=berkeley-unix
1093 ;;
1094
1095 sol2* | unixware )
1096 SYSTEM_TYPE=usg-unix-v
1097 ;;
1098
1099 esac
1100
1101 AC_SUBST(LIB_MATH)
1102 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1103 [The type of system you are compiling for; sets `system-type'.])
1104
1105
1106 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1107 pre_PKG_CONFIG_LIBS=$LIBS
1108
1109 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1110
1111 dnl This function definition taken from Gnome 2.0
1112 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1113 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1114 dnl also defines GSTUFF_PKG_ERRORS on error
1115 AC_DEFUN([PKG_CHECK_MODULES], [
1116 succeeded=no
1117
1118 if test "$PKG_CONFIG" = "no" ; then
1119 ifelse([$4], , [AC_MSG_ERROR([
1120 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1121 else
1122 PKG_CONFIG_MIN_VERSION=0.9.0
1123 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1124 AC_MSG_CHECKING(for $2)
1125
1126 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1127 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1128 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1129 edit_cflags="
1130 s,///*,/,g
1131 s/^/ /
1132 s/ -I/ $isystem/g
1133 s/^ //
1134 "
1135 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1136 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1137 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1138 succeeded=yes
1139 else
1140 AC_MSG_RESULT(no)
1141 $1_CFLAGS=""
1142 $1_LIBS=""
1143 ## If we have a custom action on failure, don't print errors, but
1144 ## do set a variable so people can do so. Do it in a subshell
1145 ## to capture any diagnostics in invoking pkg-config.
1146 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1147 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1148 fi
1149
1150 AC_SUBST($1_CFLAGS)
1151 AC_SUBST($1_LIBS)
1152 else
1153 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1154 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1155 fi
1156 fi
1157
1158 if test $succeeded = yes; then
1159 ifelse([$3], , :, [$3])
1160 else
1161 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1162 fi
1163 ])
1164
1165 if test "${with_sound}" != "no"; then
1166 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1167 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h,
1168 have_sound_header=yes, [], [
1169 #ifdef __MINGW32__
1170 #define WIN32_LEAN_AND_MEAN
1171 #include <windows.h>
1172 #endif
1173 ])
1174 # Emulation library used on NetBSD.
1175 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1176 AC_SUBST(LIBSOUND)
1177
1178 ALSA_REQUIRED=1.0.0
1179 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1180 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1181 if test $HAVE_ALSA = yes; then
1182 SAVE_CFLAGS="$CFLAGS"
1183 SAVE_LIBS="$LIBS"
1184 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1185 LIBS="$ALSA_LIBS $LIBS"
1186 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1187 emacs_alsa_normal=yes,
1188 emacs_alsa_normal=no)
1189 if test "$emacs_alsa_normal" != yes; then
1190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1191 [[snd_lib_error_set_handler (0);]])],
1192 emacs_alsa_subdir=yes,
1193 emacs_alsa_subdir=no)
1194 if test "$emacs_alsa_subdir" != yes; then
1195 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1196 fi
1197 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1198 fi
1199
1200 CFLAGS="$SAVE_CFLAGS"
1201 LIBS="$SAVE_LIBS"
1202 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1203 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1204 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1205 fi
1206
1207 dnl Define HAVE_SOUND if we have sound support. We know it works and
1208 dnl compiles only on the specified platforms. For others, it
1209 dnl probably doesn't make sense to try.
1210 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1211 case "$opsys" in
1212 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1213 gnu-linux|freebsd|netbsd)
1214 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1215 ;;
1216 mingw32)
1217 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1218 ;;
1219 esac
1220 fi
1221
1222 AC_SUBST(CFLAGS_SOUND)
1223 fi
1224
1225 dnl checks for header files
1226 AC_CHECK_HEADERS_ONCE(
1227 linux/version.h sys/systeminfo.h
1228 coff.h pty.h
1229 sys/resource.h
1230 sys/utsname.h pwd.h utmp.h util.h)
1231
1232 AC_MSG_CHECKING(if personality LINUX32 can be set)
1233 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1234 emacs_cv_personality_linux32=yes,
1235 emacs_cv_personality_linux32=no)
1236 AC_MSG_RESULT($emacs_cv_personality_linux32)
1237
1238 if test $emacs_cv_personality_linux32 = yes; then
1239 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1240 [Define to 1 if personality LINUX32 can be set.])
1241 fi
1242
1243 dnl On Solaris 8 there's a compilation warning for term.h because
1244 dnl it doesn't define `bool'.
1245 AC_CHECK_HEADERS(term.h, , , -)
1246 AC_HEADER_TIME
1247 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1248 ]])
1249 if test $ac_cv_have_decl_sys_siglist != yes; then
1250 # For Tru64, at least:
1251 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1252 ]])
1253 if test $ac_cv_have_decl___sys_siglist = yes; then
1254 AC_DEFINE(sys_siglist, __sys_siglist,
1255 [Define to any substitute for sys_siglist.])
1256 fi
1257 fi
1258 AC_HEADER_SYS_WAIT
1259
1260 dnl Check for speed_t typedef.
1261 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1262 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1263 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1264 if test $emacs_cv_speed_t = yes; then
1265 AC_DEFINE(HAVE_SPEED_T, 1,
1266 [Define to 1 if `speed_t' is declared by <termios.h>.])
1267 fi
1268
1269 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1270 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1271 #if HAVE_SYS_SOCKET_H
1272 #include <sys/socket.h>
1273 #endif])
1274 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1275 #if HAVE_SYS_SOCKET_H
1276 #include <sys/socket.h>
1277 #endif])
1278 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1279 #if HAVE_SYS_SOCKET_H
1280 #include <sys/socket.h>
1281 #endif])
1282
1283 dnl checks for structure members
1284 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1285 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1286 struct ifreq.ifr_addr,
1287 struct ifreq.ifr_addr.sa_len], , ,
1288 [AC_INCLUDES_DEFAULT
1289 #if HAVE_SYS_SOCKET_H
1290 #include <sys/socket.h>
1291 #endif
1292 #if HAVE_NET_IF_H
1293 #include <net/if.h>
1294 #endif])
1295
1296 dnl Check for endianness.
1297 dnl AC_C_BIGENDIAN is done by gnulib.
1298
1299 dnl check for Make feature
1300 dnl AC_PROG_MAKE_SET is done by Automake.
1301
1302 DEPFLAGS=
1303 MKDEPDIR=":"
1304 deps_frag=deps.mk
1305 dnl check for GNU Make if we have GCC and autodepend is on.
1306 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1307 AC_MSG_CHECKING([whether we are using GNU Make])
1308 HAVE_GNU_MAKE=no
1309 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1310 if test "x$testval" != x; then
1311 HAVE_GNU_MAKE=yes
1312 else
1313 ac_enable_autodepend=no
1314 fi
1315 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1316 if test $HAVE_GNU_MAKE = yes; then
1317 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1318 SAVE_CFLAGS="$CFLAGS"
1319 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1320 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1321 CFLAGS="$SAVE_CFLAGS"
1322 test -f deps.d || ac_enable_autodepend=no
1323 rm -rf deps.d
1324 AC_MSG_RESULT([$ac_enable_autodepend])
1325 fi
1326 if test $ac_enable_autodepend = yes; then
1327 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1328 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1329 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1330 deps_frag=autodeps.mk
1331 fi
1332 fi
1333 deps_frag=$srcdir/src/$deps_frag
1334 AC_SUBST(MKDEPDIR)
1335 AC_SUBST(DEPFLAGS)
1336 AC_SUBST_FILE(deps_frag)
1337
1338
1339 lisp_frag=$srcdir/src/lisp.mk
1340 AC_SUBST_FILE(lisp_frag)
1341
1342
1343 dnl checks for operating system services
1344 AC_SYS_LONG_FILE_NAMES
1345
1346 #### Choose a window system.
1347
1348 ## We leave window_system equal to none if
1349 ## we end up building without one. Any new window system should
1350 ## set window_system to an appropriate value and add objects to
1351 ## window-system-specific substs.
1352
1353 window_system=none
1354 AC_PATH_X
1355 if test "$no_x" != yes; then
1356 window_system=x11
1357 fi
1358
1359 LD_SWITCH_X_SITE_RPATH=
1360 if test "${x_libraries}" != NONE; then
1361 if test -n "${x_libraries}"; then
1362 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1363 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1364 fi
1365 x_default_search_path=""
1366 x_search_path=${x_libraries}
1367 if test -z "${x_search_path}"; then
1368 x_search_path=/usr/lib
1369 fi
1370 for x_library in `echo ${x_search_path}: | \
1371 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1372 x_search_path="\
1373 ${x_library}/X11/%L/%T/%N%C%S:\
1374 ${x_library}/X11/%l/%T/%N%C%S:\
1375 ${x_library}/X11/%T/%N%C%S:\
1376 ${x_library}/X11/%L/%T/%N%S:\
1377 ${x_library}/X11/%l/%T/%N%S:\
1378 ${x_library}/X11/%T/%N%S"
1379 if test x"${x_default_search_path}" = x; then
1380 x_default_search_path=${x_search_path}
1381 else
1382 x_default_search_path="${x_search_path}:${x_default_search_path}"
1383 fi
1384 done
1385 fi
1386 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1387
1388 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1389 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1390 fi
1391
1392 if test x"${x_includes}" = x; then
1393 bitmapdir=/usr/include/X11/bitmaps
1394 else
1395 # accumulate include directories that have X11 bitmap subdirectories
1396 bmd_acc="dummyval"
1397 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1398 if test -d "${bmd}/X11/bitmaps"; then
1399 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1400 fi
1401 if test -d "${bmd}/bitmaps"; then
1402 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1403 fi
1404 done
1405 if test ${bmd_acc} != "dummyval"; then
1406 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1407 fi
1408 fi
1409
1410 HAVE_NS=no
1411 NS_IMPL_COCOA=no
1412 NS_IMPL_GNUSTEP=no
1413 tmp_CPPFLAGS="$CPPFLAGS"
1414 tmp_CFLAGS="$CFLAGS"
1415 CPPFLAGS="$CPPFLAGS -x objective-c"
1416 CFLAGS="$CFLAGS -x objective-c"
1417 GNU_OBJC_CFLAGS=
1418 LIBS_GNUSTEP=
1419 if test "${with_ns}" != no; then
1420 if test "${opsys}" = darwin; then
1421 NS_IMPL_COCOA=yes
1422 ns_appdir=`pwd`/nextstep/Emacs.app
1423 ns_appbindir=${ns_appdir}/Contents/MacOS
1424 ns_appresdir=${ns_appdir}/Contents/Resources
1425 ns_appsrc=Cocoa/Emacs.base
1426 elif test -f $GNUSTEP_CONFIG_FILE; then
1427 NS_IMPL_GNUSTEP=yes
1428 ns_appdir=`pwd`/nextstep/Emacs.app
1429 ns_appbindir=${ns_appdir}
1430 ns_appresdir=${ns_appdir}/Resources
1431 ns_appsrc=GNUstep/Emacs.base
1432 dnl FIXME sourcing this several times in subshells seems inefficient.
1433 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1434 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1435 dnl I seemed to need these as well with GNUstep-startup 0.25.
1436 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1437 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1438 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1439 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1440 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1441 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1442 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1443 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1444 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1445 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1446 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1447 dnl If they had chosen to either define it or not, we could have
1448 dnl just used AC_CHECK_DECL here.
1449 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1450 emacs_cv_objc_exceptions,
1451 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1452 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1453 1;
1454 #else
1455 fail;
1456 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1457 if test $emacs_cv_objc_exceptions = yes; then
1458 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1459 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1460 [Define if GNUstep uses ObjC exceptions.])
1461 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1462 fi
1463 fi
1464
1465 dnl This is only used while we test the NS headers, it gets reset below.
1466 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1467
1468 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1469 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1470 files are missing or cannot be compiled.])])
1471
1472 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1473 [
1474 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1475 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1476 ; /* OK */
1477 #else
1478 #error "OSX 10.4 or newer required"
1479 #endif
1480 #endif
1481 ])],
1482 ns_osx_have_104=yes,
1483 ns_osx_have_104=no)
1484 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1485 [NSInteger i;])],
1486 ns_have_nsinteger=yes,
1487 ns_have_nsinteger=no)
1488 if test $ns_osx_have_104 = no; then
1489 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1490 fi
1491 if test $ns_have_nsinteger = yes; then
1492 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1493 fi
1494 fi
1495
1496 AC_SUBST(LIBS_GNUSTEP)
1497
1498 INSTALL_ARCH_INDEP_EXTRA=install-etc
1499 ns_self_contained=no
1500 NS_OBJ=
1501 NS_OBJC_OBJ=
1502 if test "${HAVE_NS}" = yes; then
1503 if test "$with_toolkit_scroll_bars" = "no"; then
1504 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1505 fi
1506
1507 window_system=nextstep
1508 # set up packaging dirs
1509 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1510 ns_self_contained=yes
1511 prefix=${ns_appresdir}
1512 exec_prefix=${ns_appbindir}
1513 dnl This one isn't really used, only archlibdir is.
1514 libexecdir="\${ns_appbindir}/libexec"
1515 archlibdir="\${ns_appbindir}/libexec"
1516 docdir="\${ns_appresdir}/etc"
1517 etcdir="\${ns_appresdir}/etc"
1518 dnl FIXME maybe set datarootdir instead.
1519 dnl That would also get applications, icons, man.
1520 infodir="\${ns_appresdir}/info"
1521 mandir="\${ns_appresdir}/man"
1522 lispdir="\${ns_appresdir}/lisp"
1523 leimdir="\${ns_appresdir}/leim"
1524 INSTALL_ARCH_INDEP_EXTRA=
1525 fi
1526 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1527 fi
1528 CFLAGS="$tmp_CFLAGS"
1529 CPPFLAGS="$tmp_CPPFLAGS"
1530 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1531 AC_SUBST(ns_self_contained)
1532 AC_SUBST(NS_OBJ)
1533 AC_SUBST(NS_OBJC_OBJ)
1534
1535 HAVE_W32=no
1536 W32_OBJ=
1537 W32_LIBS=
1538 EMACSRES=
1539 CLIENTRES=
1540 CLIENTW=
1541 W32_RES_LINK=
1542 EMACS_MANIFEST=
1543 if test "${with_w32}" != no; then
1544 if test "${opsys}" != "cygwin"; then
1545 if test "${opsys}" != "mingw32"; then
1546 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1547 fi
1548 fi
1549 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1550 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1551 cannot be found.])])
1552 fi
1553 if test "${opsys}" = "mingw32"; then
1554 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1555 [AC_MSG_ERROR([The windows.h header file is required,
1556 but cannot be found.])])
1557 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1558 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1559 #include <windows.h>
1560 #include <usp10.h>]],
1561 [[void test(PIMAGE_NT_HEADERS pHeader)
1562 {PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader);}]])],
1563 emacs_cv_w32api=yes, emacs_cv_w32api=no)
1564 AC_MSG_RESULT($emacs_cv_w32api)
1565 if test "${emacs_cv_w32api}" = "no"; then
1566 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1567 fi
1568 fi
1569
1570 FIRSTFILE_OBJ=
1571 NTDIR=
1572 LIBS_ECLIENT=
1573 LIB_WSOCK32=
1574 NTLIB=
1575 CM_OBJ="cm.o"
1576 XARGS_LIMIT=
1577 if test "${HAVE_W32}" = "yes"; then
1578 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1579 AC_CHECK_TOOL(WINDRES, [windres],
1580 [AC_MSG_ERROR([No resource compiler found.])])
1581 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1582 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1583 EMACSRES="emacs.res"
1584 case "$canonical" in
1585 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1586 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1587 esac
1588 if test "${opsys}" = "cygwin"; then
1589 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1590 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1591 # Tell the linker that emacs.res is an object (which we compile from
1592 # the rc file), not a linker script.
1593 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1594 else
1595 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1596 W32_OBJ="$W32_OBJ w32notify.o"
1597 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1598 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1599 CLIENTRES="emacsclient.res"
1600 CLIENTW="emacsclientw\$(EXEEXT)"
1601 FIRSTFILE_OBJ=firstfile.o
1602 NTDIR=nt
1603 CM_OBJ=
1604 LIBS_ECLIENT="-lcomctl32"
1605 LIB_WSOCK32="-lwsock32"
1606 NTLIB="ntlib.$ac_objext"
1607 XARGS_LIMIT="-s 10000"
1608 fi
1609 fi
1610 AC_SUBST(W32_OBJ)
1611 AC_SUBST(W32_LIBS)
1612 AC_SUBST(EMACSRES)
1613 AC_SUBST(EMACS_MANIFEST)
1614 AC_SUBST(CLIENTRES)
1615 AC_SUBST(CLIENTW)
1616 AC_SUBST(W32_RES_LINK)
1617 AC_SUBST(FIRSTFILE_OBJ)
1618 AC_SUBST(NTDIR)
1619 AC_SUBST(CM_OBJ)
1620 AC_SUBST(LIBS_ECLIENT)
1621 AC_SUBST(LIB_WSOCK32)
1622 AC_SUBST(NTLIB)
1623 AC_SUBST(XARGS_LIMIT)
1624
1625 if test "${HAVE_W32}" = "yes"; then
1626 window_system=w32
1627 with_xft=no
1628 fi
1629
1630 ## $window_system is now set to the window system we will
1631 ## ultimately use.
1632
1633 term_header=
1634 HAVE_X_WINDOWS=no
1635 HAVE_X11=no
1636 USE_X_TOOLKIT=none
1637
1638 case "${window_system}" in
1639 x11 )
1640 HAVE_X_WINDOWS=yes
1641 HAVE_X11=yes
1642 term_header=xterm.h
1643 case "${with_x_toolkit}" in
1644 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1645 motif ) USE_X_TOOLKIT=MOTIF ;;
1646 gtk ) with_gtk=yes
1647 term_header=gtkutil.h
1648 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1649 dnl USE_X_TOOLKIT is set.
1650 USE_X_TOOLKIT=none ;;
1651 gtk2 ) with_gtk2=yes
1652 term_header=gtkutil.h
1653 USE_X_TOOLKIT=none ;;
1654 gtk3 ) with_gtk3=yes
1655 term_header=gtkutil.h
1656 USE_X_TOOLKIT=none ;;
1657 no ) USE_X_TOOLKIT=none ;;
1658 dnl If user did not say whether to use a toolkit, make this decision later:
1659 dnl use the toolkit if we have gtk, or X11R5 or newer.
1660 * ) USE_X_TOOLKIT=maybe ;;
1661 esac
1662 ;;
1663 nextstep )
1664 term_header=nsterm.h
1665 ;;
1666 w32 )
1667 term_header=w32term.h
1668 ;;
1669 esac
1670
1671 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1672 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1673 if test "$HAVE_XSERVER" = true ||
1674 test -n "$DISPLAY" ||
1675 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1676 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1677 were found. You should install the relevant development files for X
1678 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1679 sure you have development files for image handling, i.e.
1680 tiff, gif, jpeg, png and xpm.
1681 If you are sure you want Emacs compiled without X window support, pass
1682 --without-x
1683 to configure.])
1684 fi
1685 fi
1686
1687 ### If we're using X11, we should use the X menu package.
1688 HAVE_MENUS=no
1689 case ${HAVE_X11} in
1690 yes ) HAVE_MENUS=yes ;;
1691 esac
1692
1693 # Does the opsystem file prohibit the use of the GNU malloc?
1694 # Assume not, until told otherwise.
1695 GNU_MALLOC=yes
1696
1697 AC_CACHE_CHECK(
1698 [whether malloc is Doug Lea style],
1699 [emacs_cv_var_doug_lea_malloc],
1700 [AC_LINK_IFELSE(
1701 [AC_LANG_PROGRAM(
1702 [[#include <malloc.h>
1703 static void hook (void) {}]],
1704 [[malloc_set_state (malloc_get_state ());
1705 __after_morecore_hook = hook;
1706 __malloc_initialize_hook = hook;]])],
1707 [emacs_cv_var_doug_lea_malloc=yes],
1708 [emacs_cv_var_doug_lea_malloc=no])])
1709 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1710
1711
1712 dnl See comments in aix4-2.h about maybe using system malloc there.
1713 system_malloc=no
1714 case "$opsys" in
1715 ## darwin ld insists on the use of malloc routines in the System framework.
1716 darwin|sol2-10) system_malloc=yes ;;
1717 esac
1718
1719 if test "${system_malloc}" = "yes"; then
1720 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1721 GNU_MALLOC=no
1722 GNU_MALLOC_reason="
1723 (The GNU allocators don't work with this system configuration.)"
1724 GMALLOC_OBJ=
1725 VMLIMIT_OBJ=
1726 else
1727 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1728 VMLIMIT_OBJ=vm-limit.o
1729
1730 AC_CHECK_HEADERS([sys/vlimit.h])
1731 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1732 [AC_LINK_IFELSE(
1733 [AC_LANG_PROGRAM(
1734 [[extern char data_start[]; char ch;]],
1735 [[return data_start < &ch;]])],
1736 [emacs_cv_data_start=yes],
1737 [emacs_cv_data_start=no])])
1738 if test $emacs_cv_data_start = yes; then
1739 AC_DEFINE([HAVE_DATA_START], 1,
1740 [Define to 1 if data_start is the address of the start
1741 of the main data segment.])
1742 fi
1743 fi
1744 AC_SUBST(GMALLOC_OBJ)
1745 AC_SUBST(VMLIMIT_OBJ)
1746
1747 if test "$doug_lea_malloc" = "yes" ; then
1748 if test "$GNU_MALLOC" = yes ; then
1749 GNU_MALLOC_reason="
1750 (Using Doug Lea's new malloc from the GNU C Library.)"
1751 fi
1752 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1753 [Define to 1 if you are using the GNU C Library.])
1754
1755 ## Use mmap directly for allocating larger buffers.
1756 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1757 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1758 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1759 case "$opsys" in
1760 gnu*) REL_ALLOC=no ;;
1761 esac
1762 fi
1763
1764 if test x"${REL_ALLOC}" = x; then
1765 REL_ALLOC=${GNU_MALLOC}
1766 fi
1767
1768 use_mmap_for_buffers=no
1769 case "$opsys" in
1770 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1771 esac
1772
1773 AC_FUNC_MMAP
1774 if test $use_mmap_for_buffers = yes; then
1775 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1776 REL_ALLOC=no
1777 fi
1778
1779 LIBS="$LIBS_SYSTEM $LIBS"
1780
1781 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1782 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1783 AC_CHECK_LIB(dnet, dnet_ntoa)
1784 dnl This causes -lresolv to get used in subsequent tests,
1785 dnl which causes failures on some systems such as HPUX 9.
1786 dnl AC_CHECK_LIB(resolv, gethostbyname)
1787
1788 dnl FIXME replace main with a function we actually want from this library.
1789 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1790
1791 dnl Check if pthreads is available.
1792 LIB_PTHREAD=
1793 AC_CHECK_HEADERS_ONCE(pthread.h)
1794 if test "$ac_cv_header_pthread_h"; then
1795 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1796 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1797 dnl testing for pthread_self if Emacs uses gmalloc.c.
1798 if test "$GMALLOC_OBJ" = gmalloc.o; then
1799 emacs_pthread_function=pthread_atfork
1800 else
1801 emacs_pthread_function=pthread_self
1802 fi
1803 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1804 fi
1805 if test "$HAVE_PTHREAD" = yes; then
1806 case "${canonical}" in
1807 *-hpux*) ;;
1808 *) LIB_PTHREAD="-lpthread"
1809 LIBS="$LIB_PTHREAD $LIBS" ;;
1810 esac
1811 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1812 fi
1813 AC_SUBST([LIB_PTHREAD])
1814
1815 AC_CHECK_LIB(pthreads, cma_open)
1816
1817 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1818 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1819 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1820 ## added to LIBS in configure would never contain the pthreads part,
1821 ## but the value used in Makefiles might. FIXME?
1822 ##
1823 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1824 ## be harmless on older versions of X where it happens to exist.
1825 test "$opsys" = "aix4-2" && \
1826 test $ac_cv_lib_pthreads_cma_open = yes && \
1827 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1828
1829 dnl Check for need for bigtoc support on IBM AIX
1830
1831 case ${host_os} in
1832 aix*)
1833 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1834 case $GCC in
1835 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1836 *) gdb_cv_bigtoc=-bbigtoc ;;
1837 esac
1838
1839 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1840 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1841 ])
1842 ;;
1843 esac
1844
1845 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1846 # used for the tests that follow. We set them back to REAL_CFLAGS and
1847 # REAL_CPPFLAGS later on.
1848
1849 REAL_CFLAGS="$CFLAGS"
1850 REAL_CPPFLAGS="$CPPFLAGS"
1851
1852 if test "${HAVE_X11}" = "yes"; then
1853 DEFS="$C_SWITCH_X_SITE $DEFS"
1854 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1855 LIBS="-lX11 $LIBS"
1856 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1857 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1858
1859 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1860 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1861 # but it's more convenient here to set LD_RUN_PATH since this
1862 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1863 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1864 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1865 export LD_RUN_PATH
1866 fi
1867
1868 if test "${opsys}" = "gnu-linux"; then
1869 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1870 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1871 [[XOpenDisplay ("foo");]])],
1872 [xgnu_linux_first_failure=no],
1873 [xgnu_linux_first_failure=yes])
1874 if test "${xgnu_linux_first_failure}" = "yes"; then
1875 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1876 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1877 OLD_CPPFLAGS="$CPPFLAGS"
1878 OLD_LIBS="$LIBS"
1879 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1880 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1881 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1882 LIBS="$LIBS -b i486-linuxaout"
1883 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1884 [[XOpenDisplay ("foo");]])],
1885 [xgnu_linux_second_failure=no],
1886 [xgnu_linux_second_failure=yes])
1887 if test "${xgnu_linux_second_failure}" = "yes"; then
1888 # If we get the same failure with -b, there is no use adding -b.
1889 # So take it out. This plays safe.
1890 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1891 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1892 CPPFLAGS="$OLD_CPPFLAGS"
1893 LIBS="$OLD_LIBS"
1894 AC_MSG_RESULT(no)
1895 else
1896 AC_MSG_RESULT(yes)
1897 fi
1898 else
1899 AC_MSG_RESULT(no)
1900 fi
1901 fi
1902
1903 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1904 # header files included from there.
1905 AC_MSG_CHECKING(for Xkb)
1906 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1907 #include <X11/XKBlib.h>]],
1908 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1909 emacs_xkb=yes, emacs_xkb=no)
1910 AC_MSG_RESULT($emacs_xkb)
1911 if test $emacs_xkb = yes; then
1912 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1913 fi
1914
1915 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1916 XScreenNumberOfScreen)
1917 fi
1918
1919 if test "${window_system}" = "x11"; then
1920 AC_MSG_CHECKING(X11 version 6)
1921 AC_CACHE_VAL(emacs_cv_x11_version_6,
1922 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1923 [[#if XlibSpecificationRelease < 6
1924 fail;
1925 #endif
1926 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1927 if test $emacs_cv_x11_version_6 = yes; then
1928 AC_MSG_RESULT(6 or newer)
1929 AC_DEFINE(HAVE_X11R6, 1,
1930 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1931 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1932 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1933 ## XIM support.
1934 case "$opsys" in
1935 sol2-*) : ;;
1936 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1937 [Define if you have usable X11R6-style XIM support.])
1938 ;;
1939 esac
1940 else
1941 AC_MSG_RESULT(before 6)
1942 fi
1943 fi
1944
1945
1946 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1947 HAVE_RSVG=no
1948 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
1949 if test "${with_rsvg}" != "no"; then
1950 RSVG_REQUIRED=2.11.0
1951 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1952
1953 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1954 AC_SUBST(RSVG_CFLAGS)
1955 AC_SUBST(RSVG_LIBS)
1956
1957 if test $HAVE_RSVG = yes; then
1958 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1959 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1960 LIBS="$RSVG_LIBS $LIBS"
1961 fi
1962 fi
1963 fi
1964
1965 HAVE_IMAGEMAGICK=no
1966 if test "${HAVE_X11}" = "yes"; then
1967 if test "${with_imagemagick}" != "no"; then
1968 ## 6.2.8 is the earliest version known to work, but earlier versions
1969 ## might work - let us know if you find one.
1970 ## 6.0.7 does not work. See bug#7955.
1971 ## 6.8.2 makes Emacs crash; see Bug#13867.
1972 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1973 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1974 AC_SUBST(IMAGEMAGICK_CFLAGS)
1975 AC_SUBST(IMAGEMAGICK_LIBS)
1976
1977 if test $HAVE_IMAGEMAGICK = yes; then
1978 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1979 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1980 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1981 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1982 fi
1983 fi
1984 fi
1985
1986
1987 HAVE_GTK=no
1988 GTK_OBJ=
1989 check_gtk2=no
1990 gtk3_pkg_errors=
1991 if test "${opsys}" != "mingw32"; then
1992 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1993 GLIB_REQUIRED=2.28
1994 GTK_REQUIRED=3.0
1995 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1996
1997 dnl Checks for libraries.
1998 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1999 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2000 AC_MSG_ERROR($GTK_PKG_ERRORS)
2001 fi
2002 if test "$pkg_check_gtk" = "yes"; then
2003 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2004 GTK_OBJ=emacsgtkfixed.o
2005 term_header=gtkutil.h
2006 USE_GTK_TOOLKIT="GTK3"
2007 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2008 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2009 fi
2010 else
2011 check_gtk2=yes
2012 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2013 fi
2014 fi
2015
2016 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2017 GLIB_REQUIRED=2.10
2018 GTK_REQUIRED=2.10
2019 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2020
2021 dnl Checks for libraries.
2022 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2023 if test "$pkg_check_gtk" = "no" &&
2024 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2025 then
2026 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2027 fi
2028 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2029 fi
2030 fi
2031
2032 if test x"$pkg_check_gtk" = xyes; then
2033
2034 AC_SUBST(GTK_CFLAGS)
2035 AC_SUBST(GTK_LIBS)
2036 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2037 CFLAGS="$CFLAGS $GTK_CFLAGS"
2038 LIBS="$GTK_LIBS $LIBS"
2039 dnl Try to compile a simple GTK program.
2040 GTK_COMPILES=no
2041 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2042 if test "${GTK_COMPILES}" != "yes"; then
2043 if test "$USE_X_TOOLKIT" != "maybe"; then
2044 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2045 fi
2046 else
2047 HAVE_GTK=yes
2048 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2049 GTK_OBJ="gtkutil.o $GTK_OBJ"
2050 USE_X_TOOLKIT=none
2051 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2052 :
2053 else
2054 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2055 closing open displays. This is no problem if you just use
2056 one display, but if you use more than one and close one of them
2057 Emacs may crash.]])
2058 sleep 3
2059 fi
2060 fi
2061
2062 fi
2063 AC_SUBST(GTK_OBJ)
2064
2065
2066 if test "${HAVE_GTK}" = "yes"; then
2067
2068 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2069 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2070 if test "$with_toolkit_scroll_bars" != no; then
2071 with_toolkit_scroll_bars=yes
2072 fi
2073
2074 dnl Check if we have the old file selection dialog declared and
2075 dnl in the link library. In 2.x it may be in the library,
2076 dnl but not declared if deprecated featured has been selected out.
2077 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2078 HAVE_GTK_FILE_SELECTION=no
2079 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2080 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2081 #include <gtk/gtk.h>])
2082 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2083 AC_CHECK_FUNCS(gtk_file_selection_new)
2084 fi
2085
2086 dnl Same as above for gtk_handle_box.
2087 HAVE_GTK_HANDLE_BOX=no
2088 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2089 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2090 #include <gtk/gtk.h>])
2091 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2092 AC_CHECK_FUNCS(gtk_handle_box_new)
2093 fi
2094
2095 dnl Same as above for gtk_tearoff_menu_item.
2096 HAVE_GTK_TEAROFF_MENU_ITEM=no
2097 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2098 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2099 #include <gtk/gtk.h>])
2100 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2101 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2102 fi
2103
2104 dnl Check for functions introduced in 2.14 and later.
2105 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2106 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2107 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2108 gtk_orientable_set_orientation \
2109 gtk_window_set_has_resize_grip)
2110
2111 term_header=gtkutil.h
2112 fi
2113
2114 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2115 dnl other platforms.
2116 HAVE_DBUS=no
2117 DBUS_OBJ=
2118 if test "${with_dbus}" = "yes"; then
2119 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2120 if test "$HAVE_DBUS" = yes; then
2121 LIBS="$LIBS $DBUS_LIBS"
2122 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2123 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2124 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2125 dnl D-Bus 1.5.12.
2126 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2127 dbus_type_is_valid \
2128 dbus_validate_bus_name \
2129 dbus_validate_path \
2130 dbus_validate_interface \
2131 dbus_validate_member)
2132 DBUS_OBJ=dbusbind.o
2133 fi
2134 fi
2135 AC_SUBST(DBUS_OBJ)
2136
2137 dnl GSettings has been tested under GNU/Linux only.
2138 HAVE_GSETTINGS=no
2139 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2140 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2141 if test "$HAVE_GSETTINGS" = "yes"; then
2142 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2143 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2144 SETTINGS_LIBS="$GSETTINGS_LIBS"
2145 fi
2146 fi
2147
2148 dnl GConf has been tested under GNU/Linux only.
2149 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2150 HAVE_GCONF=no
2151 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2152 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2153 if test "$HAVE_GCONF" = yes; then
2154 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2155 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2156 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2157 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2158 fi
2159 fi
2160
2161 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2162 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2163 if test "$HAVE_GOBJECT" = "yes"; then
2164 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2165 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2166 fi
2167 SAVE_CFLAGS="$CFLAGS"
2168 SAVE_LIBS="$LIBS"
2169 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2170 LIBS="$SETTINGS_LIBS $LIBS"
2171 AC_CHECK_FUNCS([g_type_init])
2172 CFLAGS="$SAVE_CFLAGS"
2173 LIBS="$SAVE_LIBS"
2174 fi
2175 AC_SUBST(SETTINGS_CFLAGS)
2176 AC_SUBST(SETTINGS_LIBS)
2177
2178
2179 dnl SELinux is available for GNU/Linux only.
2180 HAVE_LIBSELINUX=no
2181 LIBSELINUX_LIBS=
2182 if test "${with_selinux}" = "yes"; then
2183 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2184 if test "$HAVE_LIBSELINUX" = yes; then
2185 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2186 LIBSELINUX_LIBS=-lselinux
2187 fi
2188 fi
2189 AC_SUBST(LIBSELINUX_LIBS)
2190
2191 HAVE_GNUTLS=no
2192 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2193 if test "${with_gnutls}" = "yes" ; then
2194 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2195 if test "${HAVE_GNUTLS}" = "yes"; then
2196 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2197 fi
2198
2199 OLD_CFLAGS=$CFLAGS
2200 OLD_LIBS=$LIBS
2201 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2202 LIBS="$LIBGNUTLS_LIBS $LIBS"
2203 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2204
2205 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2206 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2207 fi
2208
2209 # Windows loads GnuTLS dynamically
2210 if test "${opsys}" = "mingw32"; then
2211 CFLAGS=$OLD_CFLAGS
2212 LIBS=$OLD_LIBS
2213 LIBGNUTLS_LIBS=
2214 fi
2215 fi
2216
2217 AC_SUBST(LIBGNUTLS_LIBS)
2218 AC_SUBST(LIBGNUTLS_CFLAGS)
2219
2220 dnl inotify is only available on GNU/Linux.
2221 if test "${with_inotify}" = "yes"; then
2222 AC_CHECK_HEADERS(sys/inotify.h)
2223 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2224 AC_CHECK_FUNC(inotify_init1)
2225 fi
2226 fi
2227 if test "$ac_cv_func_inotify_init1" = yes; then
2228 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2229 fi
2230
2231 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2232 HAVE_POSIX_ACL=no
2233 LIBACL_LIBS=
2234 if test "${with_acl}" = "yes"; then
2235 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2236 if test "$HAVE_POSIX_ACL" = yes; then
2237 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2238 LIBACL_LIBS=-lacl
2239 else
2240 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2241 if test "$HAVE_POSIX_ACL" = yes; then
2242 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2243 fi
2244 fi
2245 fi
2246 AC_SUBST(LIBACL_LIBS)
2247
2248 dnl Do not put whitespace before the #include statements below.
2249 dnl Older compilers (eg sunos4 cc) choke on it.
2250 HAVE_XAW3D=no
2251 LUCID_LIBW=
2252 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2253 if test "$with_xaw3d" != no; then
2254 AC_CACHE_VAL(emacs_cv_xaw3d,
2255 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2256 #include <X11/Intrinsic.h>
2257 #include <X11/Xaw3d/Simple.h>]],
2258 [[]])],
2259 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2260 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2261 emacs_cv_xaw3d=no)])
2262 else
2263 emacs_cv_xaw3d=no
2264 fi
2265 if test $emacs_cv_xaw3d = yes; then
2266 AC_MSG_CHECKING(for xaw3d)
2267 AC_MSG_RESULT([yes; using Lucid toolkit])
2268 USE_X_TOOLKIT=LUCID
2269 HAVE_XAW3D=yes
2270 LUCID_LIBW=-lXaw3d
2271 AC_DEFINE(HAVE_XAW3D, 1,
2272 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2273 else
2274 AC_MSG_CHECKING(for xaw3d)
2275 AC_MSG_RESULT(no)
2276 AC_MSG_CHECKING(for libXaw)
2277 AC_CACHE_VAL(emacs_cv_xaw,
2278 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2279 #include <X11/Intrinsic.h>
2280 #include <X11/Xaw/Simple.h>]],
2281 [[]])],
2282 emacs_cv_xaw=yes,
2283 emacs_cv_xaw=no)])
2284 if test $emacs_cv_xaw = yes; then
2285 AC_MSG_RESULT([yes; using Lucid toolkit])
2286 USE_X_TOOLKIT=LUCID
2287 LUCID_LIBW=-lXaw
2288 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2289 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2290 else
2291 AC_MSG_ERROR([No X toolkit could be found.
2292 If you are sure you want Emacs compiled without an X toolkit, pass
2293 --with-x-toolkit=no
2294 to configure. Otherwise, install the development libraries for the toolkit
2295 that you want to use (e.g. Gtk+) and re-run configure.])
2296 fi
2297 fi
2298 fi
2299
2300 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2301
2302 LIBXTR6=
2303 if test "${USE_X_TOOLKIT}" != "none"; then
2304 AC_MSG_CHECKING(X11 toolkit version)
2305 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2306 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2307 [[#if XtSpecificationRelease < 6
2308 fail;
2309 #endif
2310 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2311 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2312 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2313 AC_MSG_RESULT(6 or newer)
2314 AC_DEFINE(HAVE_X11XTR6, 1,
2315 [Define to 1 if you have the X11R6 or newer version of Xt.])
2316 LIBXTR6="-lSM -lICE"
2317 case "$opsys" in
2318 ## Use libw.a along with X11R6 Xt.
2319 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2320 esac
2321 else
2322 AC_MSG_RESULT(before 6)
2323 fi
2324
2325 dnl If using toolkit, check whether libXmu.a exists.
2326 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2327 OLDLIBS="$LIBS"
2328 if test x$HAVE_X11XTR6 = xyes; then
2329 LIBS="-lXt -lSM -lICE $LIBS"
2330 else
2331 LIBS="-lXt $LIBS"
2332 fi
2333 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2334 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2335 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2336 fi
2337 AC_SUBST(LIBXTR6)
2338
2339 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2340 dnl Why not just test for libxmu in the normal way?
2341 LIBXMU=-lXmu
2342 case $opsys in
2343 ## These systems don't supply Xmu.
2344 hpux* | aix4-2 )
2345 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2346 ;;
2347 mingw32 )
2348 LIBXMU=
2349 ;;
2350 esac
2351 AC_SUBST(LIBXMU)
2352
2353 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2354 if test "${HAVE_X11}" = "yes"; then
2355 if test "${USE_X_TOOLKIT}" != "none"; then
2356 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2357 fi
2358 fi
2359
2360 LIBXP=
2361 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2362 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2363 if test -d /usr/include/openmotif; then
2364 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2365 emacs_cv_openmotif=yes
2366 case "$canonical" in
2367 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2368 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2369 ;;
2370 *)
2371 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2372 esac
2373 else
2374 emacs_cv_openmotif=no
2375 fi
2376 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2377 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2378 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2379 int x = 5;
2380 #else
2381 Motif version prior to 2.1.
2382 #endif]])],
2383 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2384 if test $emacs_cv_motif_version_2_1 = yes; then
2385 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2386 if test x$emacs_cv_openmotif = xyes; then
2387 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2388 fi
2389 else
2390 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2391 # We put this in CFLAGS temporarily to precede other -I options
2392 # that might be in CFLAGS temporarily.
2393 # We put this in CPPFLAGS where it precedes the other -I options.
2394 OLD_CPPFLAGS=$CPPFLAGS
2395 OLD_CFLAGS=$CFLAGS
2396 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2397 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2398 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2399 [[int x = 5;]])],
2400 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2401 if test $emacs_cv_lesstif = yes; then
2402 # Make sure this -I option remains in CPPFLAGS after it is set
2403 # back to REAL_CPPFLAGS.
2404 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2405 # have those other -I options anyway. Ultimately, having this
2406 # directory ultimately in CPPFLAGS will be enough.
2407 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2408 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2409 else
2410 CFLAGS=$OLD_CFLAGS
2411 CPPFLAGS=$OLD_CPPFLAGS
2412 fi
2413 fi
2414 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2415 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2416 fi
2417
2418 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2419 dnl using Motif or Xaw3d is available, and unless
2420 dnl --with-toolkit-scroll-bars=no was specified.
2421
2422 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2423 [Define to 1 if we should use toolkit scroll bars.])dnl
2424 USE_TOOLKIT_SCROLL_BARS=no
2425 if test "${with_toolkit_scroll_bars}" != "no"; then
2426 if test "${USE_X_TOOLKIT}" != "none"; then
2427 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2428 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2429 HAVE_XAW3D=no
2430 USE_TOOLKIT_SCROLL_BARS=yes
2431 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2432 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2433 USE_TOOLKIT_SCROLL_BARS=yes
2434 fi
2435 elif test "${HAVE_GTK}" = "yes"; then
2436 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2437 USE_TOOLKIT_SCROLL_BARS=yes
2438 elif test "${HAVE_NS}" = "yes"; then
2439 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2440 USE_TOOLKIT_SCROLL_BARS=yes
2441 elif test "${HAVE_W32}" = "yes"; then
2442 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2443 USE_TOOLKIT_SCROLL_BARS=yes
2444 fi
2445 fi
2446
2447 dnl See if XIM is available.
2448 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2449 #include <X11/Xlib.h>
2450 #include <X11/Xresource.h>]],
2451 [[XIMProc callback;]])],
2452 [HAVE_XIM=yes
2453 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2454 HAVE_XIM=no)
2455
2456 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2457
2458 if test "${with_xim}" != "no"; then
2459 AC_DEFINE(USE_XIM, 1,
2460 [Define to 1 if we should use XIM, if it is available.])
2461 fi
2462
2463
2464 if test "${HAVE_XIM}" != "no"; then
2465 late_CFLAGS=$CFLAGS
2466 if test "$GCC" = yes; then
2467 CFLAGS="$CFLAGS --pedantic-errors"
2468 fi
2469 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2470 #include <X11/Xlib.h>
2471 #include <X11/Xresource.h>]],
2472 [[Display *display;
2473 XrmDatabase db;
2474 char *res_name;
2475 char *res_class;
2476 XIMProc callback;
2477 XPointer *client_data;
2478 #ifndef __GNUC__
2479 /* If we're not using GCC, it's probably not XFree86, and this is
2480 probably right, but we can't use something like --pedantic-errors. */
2481 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2482 char*, XIMProc, XPointer*);
2483 #endif
2484 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2485 client_data);]])],
2486 [emacs_cv_arg6_star=yes])
2487 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2488 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2489 either XPointer or XPointer*.])dnl
2490 if test "$emacs_cv_arg6_star" = yes; then
2491 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2492 else
2493 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2494 fi
2495 CFLAGS=$late_CFLAGS
2496 fi
2497
2498 ### Start of font-backend (under any platform) section.
2499 # (nothing here yet -- this is a placeholder)
2500 ### End of font-backend (under any platform) section.
2501
2502 ### Start of font-backend (under X11) section.
2503 if test "${HAVE_X11}" = "yes"; then
2504 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2505
2506 ## Use -lXft if available, unless `--with-xft=no'.
2507 HAVE_XFT=maybe
2508 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2509 with_xft="no";
2510 fi
2511 if test "x${with_xft}" != "xno"; then
2512
2513 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2514 ## Because xftfont.c uses XRenderQueryExtension, we also
2515 ## need to link to -lXrender.
2516 HAVE_XRENDER=no
2517 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2518 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2519 OLD_CPPFLAGS="$CPPFLAGS"
2520 OLD_CFLAGS="$CFLAGS"
2521 OLD_LIBS="$LIBS"
2522 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2523 CFLAGS="$CFLAGS $XFT_CFLAGS"
2524 XFT_LIBS="-lXrender $XFT_LIBS"
2525 LIBS="$XFT_LIBS $LIBS"
2526 AC_CHECK_HEADER(X11/Xft/Xft.h,
2527 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2528
2529 if test "${HAVE_XFT}" = "yes"; then
2530 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2531 AC_SUBST(XFT_LIBS)
2532 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2533 else
2534 CPPFLAGS="$OLD_CPPFLAGS"
2535 CFLAGS="$OLD_CFLAGS"
2536 LIBS="$OLD_LIBS"
2537 fi # "${HAVE_XFT}" = "yes"
2538 fi # "$HAVE_XFT" != no
2539 fi # "x${with_xft}" != "xno"
2540
2541 ## We used to allow building with FreeType and without Xft.
2542 ## However, the ftx font backend driver is not in good shape.
2543 if test "$HAVE_XFT" != "yes"; then
2544 dnl For the "Does Emacs use" message at the end.
2545 HAVE_XFT=no
2546 HAVE_FREETYPE=no
2547 else
2548 dnl Strict linkers fail with
2549 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2550 dnl if -lfreetype is not specified.
2551 dnl The following is needed to set FREETYPE_LIBS.
2552 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2553 HAVE_FREETYPE=no)
2554
2555 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2556 fi
2557
2558 HAVE_LIBOTF=no
2559 if test "${HAVE_FREETYPE}" = "yes"; then
2560 AC_DEFINE(HAVE_FREETYPE, 1,
2561 [Define to 1 if using the freetype and fontconfig libraries.])
2562 if test "${with_libotf}" != "no"; then
2563 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2564 HAVE_LIBOTF=no)
2565 if test "$HAVE_LIBOTF" = "yes"; then
2566 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2567 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2568 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2569 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2570 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2571 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2572 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2573 fi
2574 fi
2575 fi
2576 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2577 dnl Does the new font backend require it, or can it work without it?
2578 fi
2579
2580 HAVE_M17N_FLT=no
2581 if test "${HAVE_LIBOTF}" = yes; then
2582 if test "${with_m17n_flt}" != "no"; then
2583 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2584 if test "$HAVE_M17N_FLT" = "yes"; then
2585 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2586 fi
2587 fi
2588 fi
2589 else
2590 HAVE_XFT=no
2591 HAVE_FREETYPE=no
2592 HAVE_LIBOTF=no
2593 HAVE_M17N_FLT=no
2594 fi
2595
2596 ### End of font-backend (under X11) section.
2597
2598 AC_SUBST(FREETYPE_CFLAGS)
2599 AC_SUBST(FREETYPE_LIBS)
2600 AC_SUBST(FONTCONFIG_CFLAGS)
2601 AC_SUBST(FONTCONFIG_LIBS)
2602 AC_SUBST(LIBOTF_CFLAGS)
2603 AC_SUBST(LIBOTF_LIBS)
2604 AC_SUBST(M17N_FLT_CFLAGS)
2605 AC_SUBST(M17N_FLT_LIBS)
2606
2607 ### Use -lXpm if available, unless `--with-xpm=no'.
2608 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2609 HAVE_XPM=no
2610 LIBXPM=
2611 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2612 if test "${with_xpm}" != "no"; then
2613 SAVE_CPPFLAGS="$CPPFLAGS"
2614 SAVE_LDFLAGS="$LDFLAGS"
2615 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2616 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2617 AC_CHECK_HEADER(X11/xpm.h,
2618 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2619 if test "${HAVE_XPM}" = "yes"; then
2620 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2621 AC_EGREP_CPP(no_return_alloc_pixels,
2622 [#include "X11/xpm.h"
2623 #ifndef XpmReturnAllocPixels
2624 no_return_alloc_pixels
2625 #endif
2626 ], HAVE_XPM=no, HAVE_XPM=yes)
2627
2628 if test "${HAVE_XPM}" = "yes"; then
2629 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2630 AC_MSG_RESULT(yes)
2631 else
2632 AC_MSG_RESULT(no)
2633 CPPFLAGS="$SAVE_CPPFLAGS"
2634 LDFLAGS="$SAVE_LDFLAGS"
2635 fi
2636 fi
2637 fi
2638
2639 if test "${HAVE_XPM}" = "yes"; then
2640 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2641 LIBXPM=-lXpm
2642 fi
2643 fi
2644
2645 if test "${HAVE_X11}" = "yes"; then
2646 if test "${with_xpm}" != "no"; then
2647 AC_CHECK_HEADER(X11/xpm.h,
2648 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2649 if test "${HAVE_XPM}" = "yes"; then
2650 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2651 AC_EGREP_CPP(no_return_alloc_pixels,
2652 [#include "X11/xpm.h"
2653 #ifndef XpmReturnAllocPixels
2654 no_return_alloc_pixels
2655 #endif
2656 ], HAVE_XPM=no, HAVE_XPM=yes)
2657
2658 if test "${HAVE_XPM}" = "yes"; then
2659 AC_MSG_RESULT(yes)
2660 else
2661 AC_MSG_RESULT(no)
2662 fi
2663 fi
2664 fi
2665
2666 if test "${HAVE_XPM}" = "yes"; then
2667 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2668 LIBXPM=-lXpm
2669 fi
2670 fi
2671
2672 if test "${opsys}" = "mingw32"; then
2673 if test "${with_xpm}" != "no"; then
2674 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2675 #define FOR_MSW 1])
2676 fi
2677
2678 if test "${HAVE_XPM}" = "yes"; then
2679 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2680 fi
2681 fi
2682
2683 AC_SUBST(LIBXPM)
2684
2685 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2686 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2687 HAVE_JPEG=no
2688 LIBJPEG=
2689 if test "${opsys}" = "mingw32"; then
2690 if test "${with_jpeg}" != "no"; then
2691 dnl Checking for jpeglib.h can lose because of a redefinition of
2692 dnl HAVE_STDLIB_H.
2693 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2694 fi
2695 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2696 if test "${HAVE_JPEG}" = "yes"; then
2697 AC_DEFINE(HAVE_JPEG)
2698 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2699 [#include <jpeglib.h>
2700 version=JPEG_LIB_VERSION
2701 ],
2702 [AC_DEFINE(HAVE_JPEG)],
2703 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2704 HAVE_JPEG=no])
2705 fi
2706 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2707 if test "${with_jpeg}" != "no"; then
2708 dnl Checking for jpeglib.h can lose because of a redefinition of
2709 dnl HAVE_STDLIB_H.
2710 AC_CHECK_HEADER(jerror.h,
2711 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2712 fi
2713
2714 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2715 if test "${HAVE_JPEG}" = "yes"; then
2716 AC_DEFINE(HAVE_JPEG)
2717 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2718 [#include <jpeglib.h>
2719 version=JPEG_LIB_VERSION
2720 ],
2721 [AC_DEFINE(HAVE_JPEG)],
2722 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2723 HAVE_JPEG=no])
2724 fi
2725 if test "${HAVE_JPEG}" = "yes"; then
2726 LIBJPEG=-ljpeg
2727 fi
2728 fi
2729 AC_SUBST(LIBJPEG)
2730
2731 ### Use -lpng if available, unless `--with-png=no'.
2732 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2733 HAVE_PNG=no
2734 LIBPNG=
2735 if test "${opsys}" = "mingw32"; then
2736 if test "${with_png}" != "no"; then
2737 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2738 fi
2739 if test "${HAVE_PNG}" = "yes"; then
2740 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2741
2742 AC_CHECK_DECL(png_longjmp,
2743 [],
2744 [AC_DEFINE(PNG_DEPSTRUCT, [],
2745 [Define to empty to suppress deprecation warnings when building
2746 with --enable-gcc-warnings and with libpng versions before 1.5,
2747 which lack png_longjmp.])],
2748 [[#ifdef HAVE_LIBPNG_PNG_H
2749 # include <libpng/png.h>
2750 #else
2751 # include <png.h>
2752 #endif
2753 ]])
2754 fi
2755 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2756 if test "${with_png}" != "no"; then
2757 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2758 # in /usr/include/libpng.
2759 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2760 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2761 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2762 fi
2763 fi
2764
2765 if test "${HAVE_PNG}" = "yes"; then
2766 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2767 LIBPNG="-lpng -lz -lm"
2768
2769 AC_CHECK_DECL(png_longjmp,
2770 [],
2771 [AC_DEFINE(PNG_DEPSTRUCT, [],
2772 [Define to empty to suppress deprecation warnings when building
2773 with --enable-gcc-warnings and with libpng versions before 1.5,
2774 which lack png_longjmp.])],
2775 [[#ifdef HAVE_LIBPNG_PNG_H
2776 # include <libpng/png.h>
2777 #else
2778 # include <png.h>
2779 #endif
2780 ]])
2781 fi
2782 fi
2783 AC_SUBST(LIBPNG)
2784
2785 ### Use -ltiff if available, unless `--with-tiff=no'.
2786 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2787 HAVE_TIFF=no
2788 LIBTIFF=
2789 if test "${opsys}" = "mingw32"; then
2790 if test "${with_tiff}" != "no"; then
2791 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2792 fi
2793 if test "${HAVE_TIFF}" = "yes"; then
2794 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2795 fi
2796 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2797 if test "${with_tiff}" != "no"; then
2798 AC_CHECK_HEADER(tiffio.h,
2799 [tifflibs="-lz -lm"
2800 # At least one tiff package requires the jpeg library.
2801 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2802 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2803 fi
2804
2805 if test "${HAVE_TIFF}" = "yes"; then
2806 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2807 dnl FIXME -lz -lm, as per libpng?
2808 LIBTIFF=-ltiff
2809 fi
2810 fi
2811 AC_SUBST(LIBTIFF)
2812
2813 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2814 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2815 HAVE_GIF=no
2816 LIBGIF=
2817 if test "${opsys}" = "mingw32"; then
2818 if test "${with_gif}" != "no"; then
2819 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2820 fi
2821 if test "${HAVE_GIF}" = "yes"; then
2822 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2823 fi
2824 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2825 || test "${HAVE_W32}" = "yes"; then
2826 AC_CHECK_HEADER(gif_lib.h,
2827 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2828 # Earlier versions can crash Emacs.
2829 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2830
2831 if test "$HAVE_GIF" = yes; then
2832 LIBGIF=-lgif
2833 elif test "$HAVE_GIF" = maybe; then
2834 # If gif_lib.h but no libgif, try libungif.
2835 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2836 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2837 fi
2838
2839 if test "${HAVE_GIF}" = "yes"; then
2840 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2841 fi
2842 fi
2843 AC_SUBST(LIBGIF)
2844
2845 dnl Check for required libraries.
2846 if test "${HAVE_X11}" = "yes"; then
2847 MISSING=""
2848 WITH_NO=""
2849 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2850 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2851 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2852 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2853 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2854 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2855 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2856 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2857 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2858 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2859
2860 if test "X${MISSING}" != X; then
2861 AC_MSG_ERROR([The following required libraries were not found:
2862 $MISSING
2863 Maybe some development libraries/packages are missing?
2864 If you don't want to link with them give
2865 $WITH_NO
2866 as options to configure])
2867 fi
2868 fi
2869
2870 ### Use -lgpm if available, unless `--with-gpm=no'.
2871 HAVE_GPM=no
2872 LIBGPM=
2873 if test "${with_gpm}" != "no"; then
2874 AC_CHECK_HEADER(gpm.h,
2875 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2876
2877 if test "${HAVE_GPM}" = "yes"; then
2878 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2879 LIBGPM=-lgpm
2880 fi
2881 fi
2882 AC_SUBST(LIBGPM)
2883
2884 dnl Check for malloc/malloc.h on darwin
2885 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2886
2887 GNUSTEP_CFLAGS=
2888 ### Use NeXTstep API to implement GUI.
2889 if test "${HAVE_NS}" = "yes"; then
2890 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2891 if test "${NS_IMPL_COCOA}" = "yes"; then
2892 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2893 fi
2894 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2895 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2896 # See also .m.o rule in Makefile.in */
2897 # FIXME: are all these flags really needed? Document here why. */
2898 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2899 ## Extra CFLAGS applied to src/*.m files.
2900 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"
2901 fi
2902 # We also have mouse menus.
2903 HAVE_MENUS=yes
2904 OTHER_FILES=ns-app
2905 fi
2906
2907 if test "${HAVE_W32}" = "yes"; then
2908 HAVE_MENUS=yes
2909 fi
2910
2911 ### Use session management (-lSM -lICE) if available
2912 HAVE_X_SM=no
2913 LIBXSM=
2914 if test "${HAVE_X11}" = "yes"; then
2915 AC_CHECK_HEADER(X11/SM/SMlib.h,
2916 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2917
2918 if test "${HAVE_X_SM}" = "yes"; then
2919 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2920 LIBXSM="-lSM -lICE"
2921 case "$LIBS" in
2922 *-lSM*) ;;
2923 *) LIBS="$LIBXSM $LIBS" ;;
2924 esac
2925 fi
2926 fi
2927 AC_SUBST(LIBXSM)
2928
2929 ### Use libxml (-lxml2) if available
2930 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
2931 HAVE_LIBXML2=no
2932 if test "${with_xml2}" != "no"; then
2933 ### I'm not sure what the version number should be, so I just guessed.
2934 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2935 if test "${HAVE_LIBXML2}" = "yes"; then
2936 if test "${opsys}" != "mingw32"; then
2937 LIBS="$LIBXML2_LIBS $LIBS"
2938 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2939 else
2940 LIBXML2_LIBS=""
2941 fi
2942 if test "${HAVE_LIBXML2}" = "yes"; then
2943 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2944 else
2945 LIBXML2_LIBS=""
2946 LIBXML2_CFLAGS=""
2947 fi
2948 fi
2949 fi
2950 AC_SUBST(LIBXML2_LIBS)
2951 AC_SUBST(LIBXML2_CFLAGS)
2952
2953 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2954 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
2955 if test "${opsys}" = "mingw32"; then
2956 emacs_cv_netdb_declares_h_errno=yes
2957 fi
2958 AC_CACHE_CHECK(whether netdb declares h_errno,
2959 emacs_cv_netdb_declares_h_errno,
2960 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2961 [[return h_errno;]])],
2962 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2963 if test $emacs_cv_netdb_declares_h_errno = yes; then
2964 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2965 fi
2966
2967 # sqrt and other floating-point functions such as fmod and frexp
2968 # are found in -lm on most systems, but mingw32 doesn't use -lm.
2969 if test "${opsys}" != "mingw32"; then
2970 AC_CHECK_LIB(m, sqrt)
2971 fi
2972
2973 # Check for mail-locking functions in a "mail" library. Probably this should
2974 # have the same check as for liblockfile below.
2975 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2976 if test $have_mail = yes; then
2977 LIBS_MAIL=-lmail
2978 LIBS="$LIBS_MAIL $LIBS"
2979 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2980 else
2981 LIBS_MAIL=
2982 fi
2983 dnl Debian, at least:
2984 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2985 if test $have_lockfile = yes; then
2986 LIBS_MAIL=-llockfile
2987 LIBS="$LIBS_MAIL $LIBS"
2988 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2989 else
2990 # If we have the shared liblockfile, assume we must use it for mail
2991 # locking (e.g. Debian). If we couldn't link against liblockfile
2992 # (no liblockfile.a installed), ensure that we don't need to.
2993 dnl This works for files generally, not just executables.
2994 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2995 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2996 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2997 if test $ac_cv_prog_liblockfile = yes; then
2998 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2999 This probably means that movemail could lose mail.
3000 There may be a `development' package to install containing liblockfile.])
3001 fi
3002 fi
3003 AC_CHECK_HEADERS_ONCE(maillock.h)
3004 AC_SUBST(LIBS_MAIL)
3005
3006 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3007 ## interlock access to the mail spool. The alternative is a lock file named
3008 ## /usr/spool/mail/$USER.lock.
3009 mail_lock=no
3010 case "$opsys" in
3011 aix4-2) mail_lock="lockf" ;;
3012
3013 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3014
3015 ## On GNU/Linux systems, both methods are used by various mail programs.
3016 ## I assume most people are using newer mailers that have heard of flock.
3017 ## Change this if you need to.
3018 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3019 ## configure gets the right answers, and that means *NOT* using flock.
3020 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3021 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3022 ## Debian maintainer hasn't provided a clean fix for Emacs.
3023 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3024 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3025 ## correct logic. -- fx
3026 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3027 ## liblockfile is a Free Software replacement for libmail, used on
3028 ## Debian systems and elsewhere. -rfr.
3029 gnu-*)
3030 mail_lock="flock"
3031 if test $have_mail = yes || test $have_lockfile = yes; then
3032 test $ac_cv_header_maillock_h = yes && mail_lock=no
3033 fi
3034 ;;
3035 esac
3036
3037 BLESSMAIL_TARGET=
3038 case "$mail_lock" in
3039 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3040
3041 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3042
3043 *) BLESSMAIL_TARGET="need-blessmail" ;;
3044 esac
3045 AC_SUBST(BLESSMAIL_TARGET)
3046
3047
3048 AC_CHECK_FUNCS(gethostname \
3049 getrusage get_current_dir_name \
3050 lrand48 \
3051 select getpagesize setlocale \
3052 utimes getrlimit setrlimit shutdown getaddrinfo \
3053 strsignal setitimer \
3054 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3055 gai_strerror mkstemp getline getdelim sync \
3056 difftime posix_memalign \
3057 getpwent endpwent getgrent endgrent \
3058 touchlock \
3059 cfmakeraw cfsetspeed copysign __executable_start)
3060
3061 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3062 ## has a broken `rint' in some library versions including math library
3063 ## version number A.09.05.
3064 ## You can fix the math library by installing patch number PHSS_4630.
3065 ## But we can fix it more reliably for Emacs by just not using rint.
3066 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3067 case $opsys in
3068 hpux*) : ;;
3069 *) AC_CHECK_FUNCS(random rint) ;;
3070 esac
3071
3072 dnl Cannot use AC_CHECK_FUNCS
3073 AC_CACHE_CHECK([for __builtin_unwind_init],
3074 emacs_cv_func___builtin_unwind_init,
3075 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3076 emacs_cv_func___builtin_unwind_init=yes,
3077 emacs_cv_func___builtin_unwind_init=no)])
3078 if test $emacs_cv_func___builtin_unwind_init = yes; then
3079 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3080 [Define to 1 if you have the `__builtin_unwind_init' function.])
3081 fi
3082
3083 AC_CHECK_HEADERS_ONCE(sys/un.h)
3084
3085 AC_FUNC_FSEEKO
3086
3087 # UNIX98 PTYs.
3088 AC_CHECK_FUNCS(grantpt)
3089
3090 # PTY-related GNU extensions.
3091 AC_CHECK_FUNCS(getpt posix_openpt)
3092
3093 # Check this now, so that we will NOT find the above functions in ncurses.
3094 # That is because we have not set up to link ncurses in lib-src.
3095 # It's better to believe a function is not available
3096 # than to expect to find it in ncurses.
3097 # Also we need tputs and friends to be able to build at all.
3098 AC_MSG_CHECKING([for library containing tputs])
3099 # Run a test program that contains a call to tputs, a call that is
3100 # never executed. This tests whether a pre-'main' dynamic linker
3101 # works with the library. It's too much trouble to actually call
3102 # tputs in the test program, due to portability hassles. When
3103 # cross-compiling, assume the test program will run if it links.
3104 AC_DEFUN([tputs_link_source], [
3105 AC_LANG_SOURCE(
3106 [[extern void tputs (const char *, int, int (*)(int));
3107 int main (int argc, char **argv)
3108 {
3109 if (argc == 10000)
3110 tputs (argv[0], 0, 0);
3111 return 0;
3112 }]])
3113 ])
3114 if test "${opsys}" = "mingw32"; then
3115 msg='none required'
3116 else
3117 # Maybe curses should be tried earlier?
3118 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3119 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3120 OLIBS=$LIBS
3121 if test -z "$tputs_library"; then
3122 LIBS_TERMCAP=
3123 msg='none required'
3124 else
3125 LIBS_TERMCAP=-l$tputs_library
3126 msg=$LIBS_TERMCAP
3127 LIBS="$LIBS_TERMCAP $LIBS"
3128 fi
3129 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3130 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3131 LIBS=$OLIBS
3132 if test "X$msg" != Xno; then
3133 break
3134 fi
3135 done
3136 fi
3137 AC_MSG_RESULT([$msg])
3138 if test "X$msg" = Xno; then
3139 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3140 The following libraries were tried (in order):
3141 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3142 Please try installing whichever of these libraries is most appropriate
3143 for your system, together with its header files.
3144 For example, a libncurses-dev(el) or similar package.])
3145 fi
3146
3147 ## Use termcap instead of terminfo?
3148 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3149 TERMINFO=yes
3150 ## FIXME? In the cases below where we unconditionally set
3151 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3152 ## if that was found above to have tputs.
3153 ## Should we use the gnu* logic everywhere?
3154 case "$opsys" in
3155 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3156 ## The ncurses library has been moved out of the System framework in
3157 ## Mac OS X 10.2. So if configure detects it, set the command-line
3158 ## option to use it.
3159 darwin) LIBS_TERMCAP="-lncurses" ;;
3160
3161 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3162
3163 freebsd)
3164 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3165 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3166 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3167 [[#if __FreeBSD_version < 400000
3168 fail;
3169 #endif
3170 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3171
3172 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3173
3174 if test $emacs_cv_freebsd_terminfo = yes; then
3175 LIBS_TERMCAP="-lncurses"
3176 else
3177 TERMINFO=no
3178 LIBS_TERMCAP="-ltermcap"
3179 fi
3180 ;;
3181
3182 mingw32)
3183 TERMINFO=no
3184 LIBS_TERMCAP=
3185 ;;
3186
3187 netbsd)
3188 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3189 TERMINFO=no
3190 LIBS_TERMCAP="-ltermcap"
3191 fi
3192 ;;
3193
3194 openbsd) LIBS_TERMCAP="-lncurses" ;;
3195
3196 ## hpux: Make sure we get select from libc rather than from libcurses
3197 ## because libcurses on HPUX 10.10 has a broken version of select.
3198 ## We used to use -lc -lcurses, but this may be cleaner.
3199 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3200 # set that way, now it uses the default). Isn't this a contradiction?
3201 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3202
3203 esac
3204
3205 TERMCAP_OBJ=tparam.o
3206 if test $TERMINFO = yes; then
3207 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3208 TERMCAP_OBJ=terminfo.o
3209 fi
3210 AC_SUBST(LIBS_TERMCAP)
3211 AC_SUBST(TERMCAP_OBJ)
3212
3213
3214 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3215 # On Darwin, res_init appears not to be useful: see bug#562 and
3216 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3217 resolv=no
3218
3219 if test $opsys != darwin; then
3220
3221 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3222 #include <arpa/nameser.h>
3223 #include <resolv.h>]],
3224 [[return res_init();]])],
3225 have_res_init=yes, have_res_init=no)
3226 if test "$have_res_init" = no; then
3227 OLIBS="$LIBS"
3228 LIBS="$LIBS -lresolv"
3229 AC_MSG_CHECKING(for res_init with -lresolv)
3230 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3231 #include <arpa/nameser.h>
3232 #include <resolv.h>]],
3233 [[return res_init();]])],
3234 have_res_init=yes, have_res_init=no)
3235 AC_MSG_RESULT($have_res_init)
3236 if test "$have_res_init" = yes ; then
3237 resolv=yes
3238 fi
3239 LIBS="$OLIBS"
3240 fi
3241
3242 if test "$have_res_init" = yes; then
3243 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3244 fi
3245 fi dnl !darwin
3246
3247 # Do we need the Hesiod library to provide the support routines?
3248 dnl FIXME? Should we be skipping this on Darwin too?
3249 LIBHESIOD=
3250 if test "$with_hesiod" != no ; then
3251 # Don't set $LIBS here -- see comments above. FIXME which comments?
3252 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3253 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3254 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3255 if test "$resolv" = yes ; then
3256 RESOLVLIB=-lresolv
3257 else
3258 RESOLVLIB=
3259 fi
3260 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3261 hesiod=yes, :, $RESOLVLIB)])
3262
3263 if test x"$hesiod" = xyes; then
3264 AC_DEFINE(HAVE_LIBHESIOD, 1,
3265 [Define to 1 if you have the hesiod library (-lhesiod).])
3266 LIBHESIOD=-lhesiod
3267 fi
3268 fi
3269 AC_SUBST(LIBHESIOD)
3270
3271 # Do we need libresolv (due to res_init or Hesiod)?
3272 if test "$resolv" = yes && test $opsys != darwin; then
3273 AC_DEFINE(HAVE_LIBRESOLV, 1,
3274 [Define to 1 if you have the resolv library (-lresolv).])
3275 LIBRESOLV=-lresolv
3276 else
3277 LIBRESOLV=
3278 fi
3279 AC_SUBST(LIBRESOLV)
3280
3281 # These tell us which Kerberos-related libraries to use.
3282 COM_ERRLIB=
3283 CRYPTOLIB=
3284 KRB5LIB=
3285 DESLIB=
3286 KRB4LIB=
3287
3288 if test "${with_kerberos}" != no; then
3289 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3290 if test $have_com_err = yes; then
3291 COM_ERRLIB=-lcom_err
3292 LIBS="$COM_ERRLIB $LIBS"
3293 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3294 fi
3295 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3296 if test $have_crypto = yes; then
3297 CRYPTOLIB=-lcrypto
3298 LIBS="$CRYPTOLIB $LIBS"
3299 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3300 fi
3301 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3302 if test $have_k5crypto = yes; then
3303 CRYPTOLIB=-lk5crypto
3304 LIBS="$CRYPTOLIB $LIBS"
3305 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3306 fi
3307 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3308 if test $have_krb5=yes; then
3309 KRB5LIB=-lkrb5
3310 LIBS="$KRB5LIB $LIBS"
3311 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3312 fi
3313 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3314 if test "${with_kerberos5}" = no; then
3315 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3316 if test $have_des425 = yes; then
3317 DESLIB=-ldes425
3318 LIBS="$DESLIB $LIBS"
3319 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3320 else
3321 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3322 if test $have_des = yes; then
3323 DESLIB=-ldes
3324 LIBS="$DESLIB $LIBS"
3325 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3326 fi
3327 fi
3328 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3329 if test $have_krb4 = yes; then
3330 KRB4LIB=-lkrb4
3331 LIBS="$KRB4LIB $LIBS"
3332 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3333 else
3334 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3335 if test $have_krb = yes; then
3336 KRB4LIB=-lkrb
3337 LIBS="$KRB4LIB $LIBS"
3338 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3339 fi
3340 fi
3341 fi
3342
3343 if test "${with_kerberos5}" != no; then
3344 AC_CHECK_HEADERS(krb5.h,
3345 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3346 [#include <krb5.h>])])
3347 else
3348 AC_CHECK_HEADERS(des.h,,
3349 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3350 [AC_CHECK_HEADERS(kerberos/des.h)])])
3351 AC_CHECK_HEADERS(krb.h,,
3352 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3353 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3354 fi
3355 AC_CHECK_HEADERS(com_err.h)
3356 fi
3357
3358 AC_SUBST(COM_ERRLIB)
3359 AC_SUBST(CRYPTOLIB)
3360 AC_SUBST(KRB5LIB)
3361 AC_SUBST(DESLIB)
3362 AC_SUBST(KRB4LIB)
3363
3364 AC_CHECK_FUNCS_ONCE(tzset)
3365 AC_MSG_CHECKING(whether localtime caches TZ)
3366 AC_CACHE_VAL(emacs_cv_localtime_cache,
3367 [if test x$ac_cv_func_tzset = xyes; then
3368 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3369 char TZ_GMT0[] = "TZ=GMT0";
3370 char TZ_PST8[] = "TZ=PST8";
3371 main()
3372 {
3373 time_t now = time ((time_t *) 0);
3374 int hour_GMT0, hour_unset;
3375 if (putenv (TZ_GMT0) != 0)
3376 exit (1);
3377 hour_GMT0 = localtime (&now)->tm_hour;
3378 unsetenv("TZ");
3379 hour_unset = localtime (&now)->tm_hour;
3380 if (putenv (TZ_PST8) != 0)
3381 exit (1);
3382 if (localtime (&now)->tm_hour == hour_GMT0)
3383 exit (1);
3384 unsetenv("TZ");
3385 if (localtime (&now)->tm_hour != hour_unset)
3386 exit (1);
3387 exit (0);
3388 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3389 [# If we have tzset, assume the worst when cross-compiling.
3390 emacs_cv_localtime_cache=yes])
3391 else
3392 # If we lack tzset, report that localtime does not cache TZ,
3393 # since we can't invalidate the cache if we don't have tzset.
3394 emacs_cv_localtime_cache=no
3395 fi])dnl
3396 AC_MSG_RESULT($emacs_cv_localtime_cache)
3397 if test $emacs_cv_localtime_cache = yes; then
3398 AC_DEFINE(LOCALTIME_CACHE, 1,
3399 [Define to 1 if localtime caches TZ.])
3400 fi
3401
3402 ok_so_far=yes
3403 AC_CHECK_FUNC(socket, , ok_so_far=no)
3404 if test $ok_so_far = yes; then
3405 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3406 fi
3407 if test $ok_so_far = yes; then
3408 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3409 fi
3410 if test $ok_so_far = yes; then
3411 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3412 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3413 [Define to 1 if you have inet sockets.])
3414 fi
3415
3416 if test -f /usr/lpp/X11/bin/smt.exp; then
3417 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3418 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3419 fi
3420
3421 AC_MSG_CHECKING(whether system supports dynamic ptys)
3422 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3423 AC_MSG_RESULT(yes)
3424 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3425 else
3426 AC_MSG_RESULT(no)
3427 fi
3428
3429 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3430 dnl This can be removed once we assume Autoconf 2.70.
3431 case $canonical in
3432 *-solaris2.4 | *-solaris2.4.*)
3433 dnl Disable the Autoconf-generated vfork test.
3434 : ${ac_cv_func_vfork_works=no};;
3435 esac
3436
3437 AC_FUNC_FORK
3438
3439 AC_CHECK_FUNCS(snprintf)
3440
3441 dnl Adapted from Haible's version.
3442 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3443 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3444 [[char* cs = nl_langinfo(CODESET);]])],
3445 emacs_cv_langinfo_codeset=yes,
3446 emacs_cv_langinfo_codeset=no)
3447 ])
3448 if test $emacs_cv_langinfo_codeset = yes; then
3449 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3450 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3451 fi
3452
3453 AC_TYPE_MBSTATE_T
3454
3455 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3456 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3457 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3458 if test "$emacs_cv_c_restrict_arr" = yes; then
3459 AC_DEFINE(__restrict_arr, __restrict,
3460 [Define to compiler's equivalent of C99 restrict keyword in array
3461 declarations. Define as empty for no equivalent.])
3462 fi
3463
3464 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3465 dnl how the tty code is related to POSIX and/or other versions of termios.
3466 dnl The following looks like a useful start.
3467 dnl
3468 dnl AC_SYS_POSIX_TERMIOS
3469 dnl if test $ac_cv_sys_posix_termios = yes; then
3470 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3471 dnl and macros for terminal control.])
3472 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3473 dnl fi
3474
3475 dnl Turned on June 1996 supposing nobody will mind it.
3476 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3477 if test "${opsys}" != "mingw32"; then
3478 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3479 in the full name stands for the login id.])
3480 fi
3481
3482 dnl Every platform that uses configure supports this.
3483 dnl There is a create-lockfiles option you can
3484 dnl customize if you do not want the lock files to be written.
3485 dnl So it is not clear that this #define still needs to exist.
3486 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3487 so that Emacs can tell instantly when you try to modify a file that
3488 someone else has modified in his/her Emacs.])
3489
3490 dnl Everybody supports this, except MS.
3491 dnl Seems like the kind of thing we should be testing for, though.
3492 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3493 if test "${opsys}" != "mingw32"; then
3494 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3495 fi
3496
3497 dnl Everybody supports this, except MS-DOS.
3498 dnl Seems like the kind of thing we should be testing for, though.
3499 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3500 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3501 4.2-compatible sockets.])
3502
3503 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3504
3505 if test "${opsys}" = "mingw32"; then
3506 AC_DEFINE(NULL_DEVICE, ["NUL:"], [Name of the file to open to get
3507 a null file, or a data sink.])
3508 else
3509 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3510 a null file, or a data sink.])
3511 fi
3512
3513 if test "${opsys}" = "mingw32"; then
3514 AC_DEFINE(SEPCHAR, [';'], [Character that separates PATH elements.])
3515 else
3516 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3517 fi
3518
3519 dnl Everybody supports this, except MS-DOS.
3520 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3521
3522 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3523
3524
3525 AC_DEFINE(DIRECTORY_SEP, ['/'],
3526 [Character that separates directories in a file name.])
3527
3528 if test "${opsys}" = "mingw32"; then
3529 dnl Only used on MS platforms.
3530 AC_DEFINE(DEVICE_SEP, ':', [Character that separates a device in a file name.])
3531 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == DEVICE_SEP)],
3532 [Returns true if character is a device separator.])
3533
3534 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3535 [Returns true if character is a directory separator.])
3536
3537 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3538 [Returns true if character is any form of separator.])
3539 else
3540 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3541
3542 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3543 [Returns true if character is a device separator.])
3544
3545 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3546 [Returns true if character is a directory separator.])
3547
3548 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3549 [Returns true if character is any form of separator.])
3550 fi
3551
3552 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3553
3554 case $opsys in
3555 aix4-2)
3556 dnl Unfortunately without libXmu we cannot support EditRes.
3557 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3558 AC_DEFINE(NO_EDITRES, 1)
3559 fi
3560 ;;
3561
3562 hpux*)
3563 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3564 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3565 AC_DEFINE(NO_EDITRES, 1)
3566 ;;
3567 esac
3568
3569
3570 case $opsys in
3571 irix6-5 | sol2* | unixware )
3572 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3573 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3574 dnl need the constant to dimension an array. So wire in the appropriate
3575 dnl value here.
3576 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3577 ;;
3578 esac
3579
3580 emacs_broken_SIGIO=no
3581
3582 case $opsys in
3583 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3584 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3585 hpux* | irix6-5 | openbsd | sol2* | unixware )
3586 emacs_broken_SIGIO=yes
3587 ;;
3588
3589 aix4-2)
3590 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3591 dnl the way this system works, libc functions that return malloced
3592 dnl memory use the libc malloc implementation. Calling xfree or
3593 dnl xrealloc on the results of such functions results in a crash.
3594 dnl
3595 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3596 dnl but that does not currently work on this system.
3597 dnl
3598 dnl It is possible to completely override the malloc implementation on
3599 dnl AIX, but that involves putting the malloc functions in a shared
3600 dnl library and setting the MALLOCTYPE environment variable to point to
3601 dnl that shared library.
3602 dnl
3603 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3604 dnl to avoid a crash just use the Emacs implementation for that function.
3605 dnl
3606 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3607 dnl of this file, so that we do not check for get_current_dir_name
3608 dnl on AIX. But that might be fragile if something else ends
3609 dnl up testing for get_current_dir_name as a dependency.
3610 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3611 get_current_dir_name should not be used.])
3612 ;;
3613
3614 freebsd)
3615 dnl Circumvent a bug in FreeBSD. In the following sequence of
3616 dnl writes/reads on a PTY, read(2) returns bogus data:
3617 dnl
3618 dnl write(2) 1022 bytes
3619 dnl write(2) 954 bytes, get EAGAIN
3620 dnl read(2) 1024 bytes in process_read_output
3621 dnl read(2) 11 bytes in process_read_output
3622 dnl
3623 dnl That is, read(2) returns more bytes than have ever been written
3624 dnl successfully. The 1033 bytes read are the 1022 bytes written
3625 dnl successfully after processing (for example with CRs added if the
3626 dnl terminal is set up that way which it is here). The same bytes will
3627 dnl be seen again in a later read(2), without the CRs.
3628 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3629 work around an issue when reading from a PTY.])
3630 ;;
3631 esac
3632
3633 case $opsys in
3634 gnu-* | sol2-10 )
3635 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3636 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3637 ;;
3638 esac
3639
3640 case $opsys in
3641 darwin | freebsd | netbsd | openbsd )
3642 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3643 close a pty to make it a controlling terminal (it is already a
3644 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3645 ;;
3646 esac
3647
3648 dnl FIXME Surely we can test for this rather than hard-code it.
3649 case $opsys in
3650 netbsd | openbsd) sound_device="/dev/audio" ;;
3651 *) sound_device="/dev/dsp" ;;
3652 esac
3653
3654 dnl Used in sound.c
3655 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3656 [Name of the default sound device.])
3657
3658
3659 dnl Emacs can read input using SIGIO and buffering characters itself,
3660 dnl or using CBREAK mode and making C-g cause SIGINT.
3661 dnl The choice is controlled by the variable interrupt_input.
3662 dnl
3663 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3664 dnl
3665 dnl Emacs uses the presence of the USABLE_SIGIO macro
3666 dnl to indicate whether or not signal-driven I/O is possible. It uses
3667 dnl INTERRUPT_INPUT to decide whether to use it by default.
3668 dnl
3669 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3670 dnl CBREAK mode has two disadvantages
3671 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3672 dnl I hear that in system V this problem does not exist.
3673 dnl 2) Control-G causes output to be discarded.
3674 dnl I do not know whether this can be fixed in system V.
3675 dnl
3676 dnl Another method of doing input is planned but not implemented.
3677 dnl It would have Emacs fork off a separate process
3678 dnl to read the input and send it to the true Emacs process
3679 dnl through a pipe.
3680 case $opsys in
3681 darwin | gnu-linux | gnu-kfreebsd )
3682 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3683 ;;
3684 esac
3685
3686
3687 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3688 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3689 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3690 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3691 dnl taking float or double parameters.
3692 case $opsys in
3693 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3694 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3695 file defines `NeedWidePrototypes' as `NO'.])
3696 ;;
3697 esac
3698
3699
3700 dnl Used in process.c, this must be a loop, even if it only runs once.
3701 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3702 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3703 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3704 dnl trying suffixes 0-16.
3705 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3706 first PTY, if PTYs are supported.])
3707 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3708 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3709 end of a PTY, if non-standard.])
3710 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3711 end of a PTY, if non-standard.])
3712
3713 case $opsys in
3714 aix4-2 )
3715 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3716 dnl You allocate a pty by opening /dev/ptc to get the master side.
3717 dnl To get the name of the slave side, you just ttyname() the master side.
3718 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3719 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3720 ;;
3721
3722 cygwin )
3723 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3724 dnl multi-line AC_DEFINEs are hard. :(
3725 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3726 AC_DEFINE(PTY_NAME_SPRINTF, [])
3727 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3728 ;;
3729
3730 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3731 darwin )
3732 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3733 dnl Not used, because PTY_ITERATION is defined.
3734 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3735 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3736 dnl But we don't have to block SIGCHLD because it is blocked in the
3737 dnl implementation of grantpt.
3738 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3739 AC_DEFINE(PTY_NAME_SPRINTF, [])
3740 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3741 ;;
3742
3743 gnu | openbsd )
3744 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3745 ;;
3746
3747 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3748 dnl if HAVE_GRANTPT
3749 if test "x$ac_cv_func_grantpt" = xyes; then
3750 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3751 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3752 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3753 dnl to prevent sigchld_handler from intercepting the child's death.
3754 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) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3755 dnl if HAVE_POSIX_OPENPT
3756 if test "x$ac_cv_func_posix_openpt" = xyes; then
3757 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3758 AC_DEFINE(PTY_NAME_SPRINTF, [])
3759 dnl if HAVE_GETPT
3760 elif test "x$ac_cv_func_getpt" = xyes; then
3761 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3762 AC_DEFINE(PTY_NAME_SPRINTF, [])
3763 else
3764 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3765 fi
3766 else
3767 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3768 fi
3769 ;;
3770
3771 hpux*)
3772 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3773 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3774 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3775 ;;
3776
3777 irix6-5 )
3778 dnl It looks like this cannot be right, because it is not a loop.
3779 dnl However, process.c actually does this:
3780 dnl # ifndef __sgi
3781 dnl continue;
3782 dnl # else
3783 dnl return -1;
3784 dnl # endif
3785 dnl which presumably makes it OK, since irix == sgi (?).
3786 dnl FIXME it seems like this special treatment is unnecessary?
3787 dnl Why can't irix use a single-trip loop like eg cygwin?
3788 AC_DEFINE(PTY_ITERATION, [])
3789 dnl Not used, because PTY_ITERATION is defined.
3790 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3791 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); }])
3792 dnl No need to get the pty name at all.
3793 AC_DEFINE(PTY_NAME_SPRINTF, [])
3794 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3795 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3796 ;;
3797
3798 sol2* )
3799 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3800 dnl from intercepting that death. If any child but grantpt's should die
3801 dnl within, it should be caught after sigrelse(2).
3802 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, sizeof pty_name, "%s", ptyname); }])
3803 ;;
3804
3805 unixware )
3806 dnl Comments are as per sol2*.
3807 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, sizeof pty_name, "%s", ptyname); }])
3808 ;;
3809 esac
3810
3811
3812 case $opsys in
3813 sol2* | unixware )
3814 dnl This change means that we don't loop through allocate_pty too
3815 dnl many times in the (rare) event of a failure.
3816 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3817 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3818 dnl Push various streams modules onto a PTY channel. Used in process.c.
3819 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.])
3820 ;;
3821 esac
3822
3823
3824 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3825 "typing" a signal character on the pty.])
3826
3827 case $opsys in
3828 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3829 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3830 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
3831 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3832 ;;
3833
3834 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3835 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3836 gnu-linux | gnu-kfreebsd )
3837
3838 AC_MSG_CHECKING([for signals via characters])
3839 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3840 #include <linux/version.h>
3841 #if LINUX_VERSION_CODE < 0x20400
3842 # error "Linux version too old"
3843 #endif
3844 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3845
3846 AC_MSG_RESULT([$emacs_signals_via_chars])
3847 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3848 ;;
3849 esac
3850
3851
3852 dnl Used in lisp.h, emacs.c, vm-limit.c
3853 dnl NEWS.18 describes this as "a number which contains
3854 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3855 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3856 stored in a Lisp_Object.])
3857 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3858
3859 case $opsys in
3860 aix*)
3861 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3862 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3863 ;;
3864 hpux*)
3865 dnl The data segment on this machine always starts at address 0x40000000.
3866 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3867 ;;
3868 irix6-5)
3869 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3870 ;;
3871 esac
3872
3873
3874 AH_TEMPLATE(TAB3, [Undocumented.])
3875
3876 case $opsys in
3877 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3878
3879 gnu | freebsd | netbsd | openbsd )
3880 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3881 AC_DEFINE(TAB3, OXTABS)
3882 ;;
3883
3884 gnu-linux | gnu-kfreebsd )
3885 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3886 #ifndef __ia64__
3887 # error "not ia64"
3888 #endif
3889 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3890 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
3891 [Mark a secondary stack, like the register stack on the ia64.]), [])
3892 ;;
3893
3894 hpux*)
3895 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3896 run_time_remap; for HPUX.])
3897 ;;
3898 esac
3899
3900
3901 dnl This won't be used automatically yet. We also need to know, at least,
3902 dnl that the stack is continuous.
3903 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3904 registers relevant for conservative garbage collection in the jmp_buf.])
3905
3906
3907 case $opsys in
3908 dnl Not all the architectures are tested, but there are Debian packages
3909 dnl for SCM and/or Guile on them, so the technique must work. See also
3910 dnl comments in alloc.c concerning setjmp and gcc.
3911 dnl Fixme: it's probably safe to just use the GCC conditional below.
3912 gnu-linux | gnu-kfreebsd )
3913 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3914 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3915 || defined __alpha__ || defined __mips__ || defined __s390__ \
3916 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3917 || defined __ia64__ || defined __sh__
3918 /* ok */
3919 #else
3920 # error "setjmp not known to work on this arch"
3921 #endif
3922 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3923 ;;
3924 esac
3925
3926
3927 if test x$GCC = xyes; then
3928 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3929 AC_DEFINE(GC_SETJMP_WORKS, 1)
3930 else
3931 case $opsys in
3932 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3933 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3934 AC_DEFINE(GC_SETJMP_WORKS, 1)
3935 ;;
3936 esac
3937 fi dnl GCC?
3938
3939 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
3940 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3941 [AC_LINK_IFELSE(
3942 [AC_LANG_PROGRAM(
3943 [[#include <setjmp.h>
3944 #ifdef __MINGW32__
3945 # define _longjmp longjmp
3946 #endif
3947 ]],
3948 [[jmp_buf j;
3949 if (! _setjmp (j))
3950 _longjmp (j, 1);]])],
3951 [emacs_cv_func__setjmp=yes],
3952 [emacs_cv_func__setjmp=no])])
3953 if test $emacs_cv_func__setjmp = yes; then
3954 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3955 else
3956 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3957 [AC_LINK_IFELSE(
3958 [AC_LANG_PROGRAM(
3959 [[#include <setjmp.h>
3960 ]],
3961 [[sigjmp_buf j;
3962 if (! sigsetjmp (j, 1))
3963 siglongjmp (j, 1);]])],
3964 [emacs_cv_func_sigsetjmp=yes],
3965 [emacs_cv_func_sigsetjmp=no])])
3966 if test $emacs_cv_func_sigsetjmp = yes; then
3967 AC_DEFINE([HAVE_SIGSETJMP], 1,
3968 [Define to 1 if sigsetjmp and siglongjmp work.
3969 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3970 fi
3971 fi
3972
3973 case $opsys in
3974 sol2* | unixware )
3975 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3976 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3977 dnl and this is all we need.
3978 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3979 ;;
3980 esac
3981
3982
3983 case $opsys in
3984 hpux* | sol2* )
3985 dnl Used in xfaces.c.
3986 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3987 some systems, where it requires time.h.])
3988 ;;
3989 esac
3990
3991
3992 dnl Define symbols to identify the version of Unix this is.
3993 dnl Define all the symbols that apply correctly.
3994 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3995 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3996 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3997 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3998 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3999
4000 case $opsys in
4001 aix4-2)
4002 AC_DEFINE(USG, [])
4003 AC_DEFINE(USG5, [])
4004 dnl This symbol should be defined on AIX Version 3 ???????
4005 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4006 #ifndef _AIX
4007 # error "_AIX not defined"
4008 #endif
4009 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4010 ;;
4011
4012 cygwin)
4013 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4014 ;;
4015
4016 darwin)
4017 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4018 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4019 dnl distinguish OS X from pure Darwin.
4020 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4021 ;;
4022
4023 gnu-linux | gnu-kfreebsd )
4024 AC_DEFINE(USG, [])
4025 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4026 ;;
4027
4028 hpux*)
4029 AC_DEFINE(USG, [])
4030 AC_DEFINE(USG5, [])
4031 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4032 ;;
4033
4034 irix6-5)
4035 AC_DEFINE(USG, [])
4036 AC_DEFINE(USG5, [])
4037 AC_DEFINE(USG5_4, [])
4038 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4039 ;;
4040
4041 mingw32)
4042 AC_DEFINE(DOS_NT, [])
4043 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4044 if test "x$ac_enable_checking" != "x" ; then
4045 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4046 fi
4047 ;;
4048
4049 sol2*)
4050 AC_DEFINE(USG, [])
4051 AC_DEFINE(USG5, [])
4052 AC_DEFINE(USG5_4, [])
4053 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4054 ;;
4055
4056 unixware)
4057 AC_DEFINE(USG, [])
4058 AC_DEFINE(USG5, [])
4059 AC_DEFINE(USG5_4, [])
4060 ;;
4061 esac
4062
4063 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4064 [case $opsys in
4065 aix4-2)
4066 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4067 emacs_cv_usable_FIONREAD=no
4068 ;;
4069
4070 mingw32)
4071 emacs_cv_usable_FIONREAD=yes
4072 ;;
4073
4074 *)
4075 AC_COMPILE_IFELSE(
4076 [AC_LANG_PROGRAM([[#include <sys/types.h>
4077 #include <sys/ioctl.h>
4078 #ifdef USG5_4
4079 # include <sys/filio.h>
4080 #endif
4081 ]],
4082 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4083 [emacs_cv_usable_FIONREAD=yes],
4084 [emacs_cv_usable_FIONREAD=no])
4085 ;;
4086 esac])
4087 if test $emacs_cv_usable_FIONREAD = yes; then
4088 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4089
4090 if test $emacs_broken_SIGIO = no; then
4091 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4092 [AC_COMPILE_IFELSE(
4093 [AC_LANG_PROGRAM([[#include <fcntl.h>
4094 #include <signal.h>
4095 ]],
4096 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4097 [emacs_cv_usable_SIGIO=yes],
4098 [emacs_cv_usable_SIGIO=no])],
4099 [emacs_cv_usable_SIGIO=yes],
4100 [emacs_cv_usable_SIGIO=no])
4101 if test $emacs_cv_usable_SIGIO = yes; then
4102 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4103 fi
4104 fi
4105 fi
4106
4107
4108 case $opsys in
4109 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4110 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4111 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4112 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4113 cygwin)
4114 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4115 G_SLICE environment variable to "always-malloc" at startup, if
4116 using GTK.])
4117 ;;
4118
4119 hpux11)
4120 dnl It works to open the pty's tty in the parent (Emacs), then
4121 dnl close and reopen it in the child.
4122 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4123 works to open a pty's tty in the parent process, then close and
4124 reopen it in the child.])
4125 ;;
4126
4127 irix6-5)
4128 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4129 use VSUSP instead of VSWTCH.])
4130 ;;
4131
4132 sol2-10)
4133 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4134 on Solaris.])
4135 ;;
4136 esac
4137
4138 # Set up the CFLAGS for real compilation, so we can substitute it.
4139 CFLAGS="$REAL_CFLAGS"
4140 CPPFLAGS="$REAL_CPPFLAGS"
4141
4142 ## Hack to detect a buggy GCC version.
4143 if test "x$GCC" = xyes \
4144 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4145 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4146 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4147 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4148 fi
4149
4150 version=$PACKAGE_VERSION
4151
4152 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4153 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4154 [Short copyright string for this version of Emacs.])
4155 AC_SUBST(copyright)
4156
4157 ### Specify what sort of things we'll be editing into Makefile and config.h.
4158 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4159 AC_SUBST(version)
4160 AC_SUBST(configuration)
4161 ## Unused?
4162 AC_SUBST(canonical)
4163 AC_SUBST(srcdir)
4164 AC_SUBST(prefix)
4165 AC_SUBST(exec_prefix)
4166 AC_SUBST(bindir)
4167 AC_SUBST(datadir)
4168 AC_SUBST(sharedstatedir)
4169 AC_SUBST(libexecdir)
4170 AC_SUBST(mandir)
4171 AC_SUBST(infodir)
4172 AC_SUBST(lispdir)
4173 AC_SUBST(leimdir)
4174 AC_SUBST(standardlisppath)
4175 AC_SUBST(locallisppath)
4176 AC_SUBST(lisppath)
4177 AC_SUBST(x_default_search_path)
4178 AC_SUBST(etcdir)
4179 AC_SUBST(archlibdir)
4180 AC_SUBST(docdir)
4181 AC_SUBST(bitmapdir)
4182 AC_SUBST(gamedir)
4183 AC_SUBST(gameuser)
4184 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4185 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4186 ## end of LIBX_BASE, but nothing ever set it.
4187 AC_SUBST(LD_SWITCH_X_SITE)
4188 AC_SUBST(C_SWITCH_X_SITE)
4189 AC_SUBST(GNUSTEP_CFLAGS)
4190 AC_SUBST(CFLAGS)
4191 ## Used in lwlib/Makefile.in.
4192 AC_SUBST(X_TOOLKIT_TYPE)
4193 AC_SUBST(ns_appdir)
4194 AC_SUBST(ns_appbindir)
4195 AC_SUBST(ns_appresdir)
4196 AC_SUBST(ns_appsrc)
4197 AC_SUBST(GNU_OBJC_CFLAGS)
4198 AC_SUBST(OTHER_FILES)
4199
4200 if test -n "${term_header}"; then
4201 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4202 [Define to the header for the built-in window system.])
4203 fi
4204
4205 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4206 [Define to the canonical Emacs configuration name.])
4207 dnl Replace any embedded " characters (bug#13274).
4208 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4209 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4210 [Define to the options passed to configure.])
4211 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4212 define this to include extra configuration information.])
4213
4214 case $opsys in
4215 mingw32)
4216 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4217 ;;
4218 esac
4219
4220 XMENU_OBJ=
4221 XOBJ=
4222 FONT_OBJ=
4223 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4224 AC_DEFINE(HAVE_X_WINDOWS, 1,
4225 [Define to 1 if you want to use the X window system.])
4226 XMENU_OBJ=xmenu.o
4227 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4228 FONT_OBJ=xfont.o
4229 if test "$HAVE_XFT" = "yes"; then
4230 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4231 elif test "$HAVE_FREETYPE" = "yes"; then
4232 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4233 fi
4234 AC_SUBST(FONT_OBJ)
4235 fi
4236 AC_SUBST(XMENU_OBJ)
4237 AC_SUBST(XOBJ)
4238 AC_SUBST(FONT_OBJ)
4239
4240 WIDGET_OBJ=
4241 MOTIF_LIBW=
4242 if test "${USE_X_TOOLKIT}" != "none" ; then
4243 WIDGET_OBJ=widget.o
4244 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4245 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4246 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4247 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4248 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4249 MOTIF_LIBW=-lXm
4250 case "$opsys" in
4251 gnu-linux)
4252 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4253 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4254 ;;
4255
4256 unixware)
4257 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4258 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4259 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4260 ;;
4261
4262 aix4-2)
4263 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4264 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4265 ;;
4266 esac
4267 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4268 fi
4269 fi
4270 AC_SUBST(WIDGET_OBJ)
4271
4272 TOOLKIT_LIBW=
4273 case "$USE_X_TOOLKIT" in
4274 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4275 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4276 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4277 esac
4278 AC_SUBST(TOOLKIT_LIBW)
4279
4280 if test "${opsys}" != "mingw32"; then
4281 if test "$USE_X_TOOLKIT" = "none"; then
4282 LIBXT_OTHER="\$(LIBXSM)"
4283 OLDXMENU_TARGET="really-oldXMenu"
4284 else
4285 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4286 OLDXMENU_TARGET="really-lwlib"
4287 fi
4288 fi
4289 AC_SUBST(LIBXT_OTHER)
4290
4291 ## The X Menu stuff is present in the X10 distribution, but missing
4292 ## from X11. If we have X10, just use the installed library;
4293 ## otherwise, use our own copy.
4294 if test "${HAVE_X11}" = "yes" ; then
4295 AC_DEFINE(HAVE_X11, 1,
4296 [Define to 1 if you want to use version 11 of X windows.
4297 Otherwise, Emacs expects to use version 10.])
4298
4299 if test "$USE_X_TOOLKIT" = "none"; then
4300 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4301 else
4302 OLDXMENU="\${lwlibdir}/liblw.a"
4303 fi
4304 LIBXMENU="\$(OLDXMENU)"
4305 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4306 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4307 else
4308 ## For a syntactically valid Makefile; not actually used for anything.
4309 ## See comments in src/Makefile.in.
4310 OLDXMENU=nothing
4311 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4312 if test "${HAVE_X_WINDOWS}" = "yes"; then
4313 LIBXMENU="-lXMenu"
4314 else
4315 LIBXMENU=
4316 fi
4317 LIBX_OTHER=
4318 OLDXMENU_DEPS=
4319 fi
4320
4321 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4322 OLDXMENU_TARGET=
4323 OLDXMENU=nothing
4324 LIBXMENU=
4325 OLDXMENU_DEPS=
4326 fi
4327
4328 AC_SUBST(OLDXMENU_TARGET)
4329 AC_SUBST(OLDXMENU)
4330 AC_SUBST(LIBXMENU)
4331 AC_SUBST(LIBX_OTHER)
4332 AC_SUBST(OLDXMENU_DEPS)
4333
4334 if test "${HAVE_MENUS}" = "yes" ; then
4335 AC_DEFINE(HAVE_MENUS, 1,
4336 [Define to 1 if you have mouse menus.
4337 (This is automatic if you use X, but the option to specify it remains.)
4338 It is also defined with other window systems that support xmenu.c.])
4339 fi
4340
4341 if test "${GNU_MALLOC}" = "yes" ; then
4342 AC_DEFINE(GNU_MALLOC, 1,
4343 [Define to 1 if you want to use the GNU memory allocator.])
4344 fi
4345
4346 RALLOC_OBJ=
4347 if test "${REL_ALLOC}" = "yes" ; then
4348 AC_DEFINE(REL_ALLOC, 1,
4349 [Define REL_ALLOC if you want to use the relocating allocator for
4350 buffer space.])
4351
4352 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4353 fi
4354 AC_SUBST(RALLOC_OBJ)
4355
4356 if test "$opsys" = "cygwin"; then
4357 CYGWIN_OBJ="sheap.o cygw32.o"
4358 ## Cygwin differs because of its unexec().
4359 PRE_ALLOC_OBJ=
4360 POST_ALLOC_OBJ=lastfile.o
4361 elif test "$opsys" = "mingw32"; then
4362 CYGWIN_OBJ=
4363 PRE_ALLOC_OBJ=
4364 POST_ALLOC_OBJ=lastfile.o
4365 else
4366 CYGWIN_OBJ=
4367 PRE_ALLOC_OBJ=lastfile.o
4368 POST_ALLOC_OBJ=
4369 fi
4370 AC_SUBST(CYGWIN_OBJ)
4371 AC_SUBST(PRE_ALLOC_OBJ)
4372 AC_SUBST(POST_ALLOC_OBJ)
4373
4374 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4375 # it temporarily reverts them to their pre-pkg-config values,
4376 # because gnulib needs to work with both src (which uses the
4377 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4378 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4379 # and it therefore needs to run in an environment where LIBS does not
4380 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4381 # for some package unrelated to lib-src.
4382 SAVE_CFLAGS=$CFLAGS
4383 SAVE_LIBS=$LIBS
4384 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4385 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4386 gl_ASSERT_NO_GNULIB_POSIXCHECK
4387 gl_ASSERT_NO_GNULIB_TESTS
4388 gl_INIT
4389 CFLAGS=$SAVE_CFLAGS
4390 LIBS=$SAVE_LIBS
4391
4392 if test "${opsys}" = "mingw32"; then
4393 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4394 # Remove unneeded switches from the value of CC that goes to Makefiles
4395 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4396 fi
4397
4398 case "$opsys" in
4399 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4400
4401 darwin)
4402 ## The -headerpad option tells ld (see man page) to leave room at the
4403 ## end of the header for adding load commands. Needed for dumping.
4404 ## 0x690 is the total size of 30 segment load commands (at 56
4405 ## each); under Cocoa 31 commands are required.
4406 if test "$HAVE_NS" = "yes"; then
4407 libs_nsgui="-framework AppKit"
4408 headerpad_extra=6C8
4409 else
4410 libs_nsgui=
4411 headerpad_extra=690
4412 fi
4413 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4414
4415 ## This is here because src/Makefile.in did some extra fiddling around
4416 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4417 ## LD_SWITCH_SYSTEM_TEMACS instead,
4418 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4419 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4420 ;;
4421
4422 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4423 ## find X at run-time.
4424 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4425 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4426 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4427 ## had different values in configure (in ac_link) and src/Makefile.in.
4428 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4429 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4430
4431 mingw32)
4432 case "$canonical" in
4433 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4434 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4435 esac
4436 ;;
4437
4438 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4439 esac
4440
4441 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4442
4443 ## MinGW-specific post-link processing of temacs.
4444 TEMACS_POST_LINK=":"
4445 ADDSECTION=
4446 EMACS_HEAPSIZE=
4447 if test "${opsys}" = "mingw32"; then
4448 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4449 ADDSECTION="../nt/addsection\$(EXEEXT)"
4450 ## Preload heap size of temacs.exe in MB.
4451 case "$canonical" in
4452 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4453 *) EMACS_HEAPSIZE=27 ;;
4454 esac
4455 fi
4456
4457 AC_SUBST(ADDSECTION)
4458 AC_SUBST(TEMACS_POST_LINK)
4459 AC_SUBST(EMACS_HEAPSIZE)
4460
4461 ## Common for all window systems
4462 if test "$window_system" != "none"; then
4463 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4464 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4465 fi
4466
4467 AC_SUBST(WINDOW_SYSTEM_OBJ)
4468
4469 AH_TOP([/* GNU Emacs site configuration template file.
4470
4471 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4472 Free Software Foundation, Inc.
4473
4474 This file is part of GNU Emacs.
4475
4476 GNU Emacs is free software: you can redistribute it and/or modify
4477 it under the terms of the GNU General Public License as published by
4478 the Free Software Foundation, either version 3 of the License, or
4479 (at your option) any later version.
4480
4481 GNU Emacs is distributed in the hope that it will be useful,
4482 but WITHOUT ANY WARRANTY; without even the implied warranty of
4483 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4484 GNU General Public License for more details.
4485
4486 You should have received a copy of the GNU General Public License
4487 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4488
4489
4490 /* No code in Emacs #includes config.h twice, but some bits of code
4491 intended to work with other packages as well (like gmalloc.c)
4492 think they can include it as many times as they like. */
4493 #ifndef EMACS_CONFIG_H
4494 #define EMACS_CONFIG_H
4495 ])dnl
4496
4497 AH_BOTTOM([#include <conf_post.h>
4498
4499 #endif /* EMACS_CONFIG_H */
4500
4501 /*
4502 Local Variables:
4503 mode: c
4504 End:
4505 */
4506 ])dnl
4507
4508 #### Report on what we decided to do.
4509 #### Report GTK as a toolkit, even if it doesn't use Xt.
4510 #### It makes printing result more understandable as using GTK sets
4511 #### toolkit_scroll_bars to yes by default.
4512 if test "${HAVE_GTK}" = "yes"; then
4513 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4514 fi
4515
4516 echo "
4517 Configured for \`${canonical}'.
4518
4519 Where should the build process find the source code? ${srcdir}
4520 What compiler should emacs be built with? ${CC} ${CFLAGS}
4521 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4522 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4523 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4524 What window system should Emacs use? ${window_system}
4525 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4526
4527 if test -n "${x_includes}"; then
4528 echo " Where do we find X Windows header files? ${x_includes}"
4529 else
4530 echo " Where do we find X Windows header files? Standard dirs"
4531 fi
4532 if test -n "${x_libraries}"; then
4533 echo " Where do we find X Windows libraries? ${x_libraries}"
4534 else
4535 echo " Where do we find X Windows libraries? Standard dirs"
4536 fi
4537
4538 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4539 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4540 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4541 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4542 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4543 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4544 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4545 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4546
4547 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4548 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4549 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4550 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4551 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4552 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4553 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4554
4555 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4556 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4557 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4558 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4559
4560 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4561 echo
4562
4563 if test -n "${EMACSDATA}"; then
4564 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4565 fi
4566 if test -n "${EMACSDOC}"; then
4567 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4568 fi
4569
4570 echo
4571
4572 if test "$HAVE_NS" = "yes"; then
4573 echo
4574 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4575 The installed application will go to nextstep/Emacs.app and can be
4576 run or moved from there."
4577 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4578 echo "The application will be fully self-contained."
4579 else
4580 echo "The lisp resources for the application will be installed under ${prefix}.
4581 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4582 to run if these resources are not installed."
4583 fi
4584 echo
4585 fi
4586
4587 if test "${opsys}" = "cygwin"; then
4588 case `uname -r` in
4589 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4590 echo
4591 ;;
4592 esac
4593 fi
4594
4595 # Remove any trailing slashes in these variables.
4596 [test "${prefix}" != NONE &&
4597 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4598 test "${exec_prefix}" != NONE &&
4599 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4600
4601 if test "$HAVE_NS" = "yes"; then
4602 if test "$NS_IMPL_GNUSTEP" = yes; then
4603 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4604 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4605 else
4606 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4607 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4608 fi
4609 fi
4610
4611 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4612 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4613 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4614 dnl (else you get "no `Makefile.am' found for any configure output").
4615 dnl This will work, but you get a config.status that is not quite right
4616 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4617 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4618 dnl it seems better to just live with the duplication.
4619 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4620
4621 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4622 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4623 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4624 leim/Makefile nextstep/Makefile nt/Makefile])
4625
4626 dnl test/ is not present in release tarfiles.
4627 opt_makefile=test/automated/Makefile
4628
4629 if test -f "$srcdir/$opt_makefile.in"; then
4630 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4631 dnl Again, it's best not to use a variable. Though you can add
4632 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4633 AC_CONFIG_FILES([test/automated/Makefile])
4634 fi
4635
4636
4637 dnl admin/ may or may not be present.
4638 opt_makefile=admin/unidata/Makefile
4639
4640 if test -f "$srcdir/$opt_makefile.in"; then
4641 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4642 AC_CONFIG_FILES([admin/unidata/Makefile])
4643 fi
4644
4645
4646 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4647
4648 AC_SUBST(SUBDIR_MAKEFILES_IN)
4649
4650 dnl Make the necessary directories, if they don't exist.
4651 AC_CONFIG_COMMANDS([mkdirs], [
4652 for dir in etc lisp ; do
4653 test -d ${dir} || mkdir ${dir}
4654 done
4655 ])
4656
4657 dnl You might wonder (I did) why epaths.h is generated by running make,
4658 dnl rather than just letting configure generate it from epaths.in.
4659 dnl One reason is that the various paths are not fully expanded (see above);
4660 dnl eg gamedir=${prefix}/var/games/emacs.
4661 dnl Secondly, the GNU Coding standards require that one should be able
4662 dnl to run `make prefix=/some/where/else' and override the values set
4663 dnl by configure. This also explains the `move-if-change' test and
4664 dnl the use of force in the `epaths-force' rule in Makefile.in.
4665 AC_CONFIG_COMMANDS([epaths], [
4666 echo creating src/epaths.h
4667 if test "${opsys}" = "mingw32"; then
4668 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4669 else
4670 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4671 fi
4672 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4673
4674 AC_CONFIG_COMMANDS([gdbinit], [
4675 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4676 echo creating src/.gdbinit
4677 echo "source $srcdir/src/.gdbinit" > src/.gdbinit
4678 fi
4679 ])
4680
4681 AC_OUTPUT