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[gnu-emacs] / 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, 1999-2012 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, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
31
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
34 AC_ARG_PROGRAM
35
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
50
51 dnl Special option to disable the most of other options.
52 AC_ARG_WITH(all,
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
57 with_features=yes)
58
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
71 ])dnl
72
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
84 ])dnl
85
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
89 fi
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
91
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
94 AC_DEFINE(KERBEROS)
95 fi
96 AH_TEMPLATE(KERBEROS,
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
98
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
102 with_kerberos=yes
103 AC_DEFINE(KERBEROS)
104 fi
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
106 fi
107
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
113 fi
114
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
118 fi
119
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
123 fi
124
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
128
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
130
131 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
134 fi
135
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
142 [ case "${withval}" in
143 y | ye | yes ) val=gtk ;;
144 n | no ) val=no ;;
145 l | lu | luc | luci | lucid ) val=lucid ;;
146 a | at | ath | athe | athen | athena ) val=athena ;;
147 m | mo | mot | moti | motif ) val=motif ;;
148 g | gt | gtk ) val=gtk ;;
149 gtk3 ) val=gtk3 ;;
150 * )
151 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
152 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
153 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
154 ;;
155 esac
156 with_x_toolkit=$val
157 ])
158
159 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
160 if test "$with_wide_int" = yes; then
161 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
162 fi
163
164 dnl _ON results in a '--without' option in the --help output, so
165 dnl the help text should refer to "don't compile", etc.
166 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
167 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
168 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
169 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
170 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
171 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
172 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
173 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
174
175 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
176 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
177 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
178
179 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
180 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
181 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
182 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
183
184 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
185 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
186 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
187 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
188 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
189 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
190
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
195
196 ## Makefile.in needs the cache file name.
197 AC_SUBST(cache_file)
198
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
203 GZIP_INFO=yes
204 else
205 GZIP_INFO=
206 fi
207 AC_SUBST(GZIP_INFO)
208
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
211 [path to pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
215 fi
216 fi
217
218 CRT_DIR=
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
223
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
229
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
236
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
242
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
246 to this site])],
247 if test "${enableval}" = "no"; then
248 locallisppath=
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
251 fi)
252
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
263 do
264 case $check in
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
273 ac_glyphs_debug= ;;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
280 ac_glyphs_debug=1 ;;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
289 esac
290 done
291 IFS="$ac_save_IFS"
292
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
296 fi
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
302 fi
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
306 fi
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
310 fi
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
314 fi
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
318 fi
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
322 fi
323
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
331 fi)
332
333
334 AC_ARG_ENABLE(profiling,
335 [AS_HELP_STRING([--enable-profiling],
336 [build emacs with profiling support.
337 This might not work on all platforms])],
338 [ac_enable_profiling="${enableval}"],[])
339 if test x$ac_enable_profiling != x ; then
340 PROFILING_CFLAGS="-DPROFILING=1 -pg"
341 else
342 PROFILING_CFLAGS=
343 fi
344 AC_SUBST(PROFILING_CFLAGS)
345
346 AC_ARG_ENABLE(autodepend,
347 [AS_HELP_STRING([--enable-autodepend],
348 [automatically generate dependencies to .h-files.
349 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
350 found])],
351 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
352
353 #### Make srcdir absolute, if it isn't already. It's important to
354 #### avoid running the path through pwd unnecessarily, since pwd can
355 #### give you automounter prefixes, which can go away. We do all this
356 #### so Emacs can find its files when run uninstalled.
357 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
358 unset CDPATH
359 case "${srcdir}" in
360 /* ) ;;
361 . )
362 ## We may be able to use the $PWD environment variable to make this
363 ## absolute. But sometimes PWD is inaccurate.
364 ## Note: we used to use ${PWD} at the end instead of `pwd`,
365 ## but that tested only for a well-formed and valid PWD,
366 ## it did not object when PWD was well-formed and valid but just wrong.
367 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
368 then
369 srcdir="$PWD"
370 else
371 srcdir="`(cd ${srcdir}; pwd)`"
372 fi
373 ;;
374 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
375 esac
376
377 ### Canonicalize the configuration name.
378
379 AC_CANONICAL_HOST
380 canonical=$host
381 configuration=${host_alias-${build_alias-$host}}
382
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
387 dnl
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
390 dnl quotation begins
391 [
392
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system file.
396
397 ### You would hope that you could choose an s/*.h
398 ### file based on the operating system portion. However, it turns out
399 ### that each s/*.h file is pretty manufacturer-specific.
400 ### So we basically have to have a special case for each
401 ### configuration name.
402 ###
403 ### As far as handling version numbers on operating systems is
404 ### concerned, make sure things will fail in a fixable way. If
405 ### /etc/MACHINES doesn't say anything about version numbers, be
406 ### prepared to handle anything reasonably. If version numbers
407 ### matter, be sure /etc/MACHINES says something about it.
408
409 opsys='' unported=no
410 case "${canonical}" in
411
412 ## GNU/Linux and similar ports
413 *-*-linux* )
414 opsys=gnu-linux
415 ;;
416
417 ## FreeBSD ports
418 *-*-freebsd* )
419 opsys=freebsd
420 ;;
421
422 ## FreeBSD kernel + glibc based userland
423 *-*-kfreebsd*gnu* )
424 opsys=gnu-kfreebsd
425 ;;
426
427 ## NetBSD ports
428 *-*-netbsd* )
429 opsys=netbsd
430 ;;
431
432 ## OpenBSD ports
433 *-*-openbsd* )
434 opsys=openbsd
435 ;;
436
437 ## Apple Darwin / Mac OS X
438 *-apple-darwin* )
439 case "${canonical}" in
440 i[3456]86-* ) ;;
441 powerpc-* ) ;;
442 x86_64-* ) ;;
443 * ) unported=yes ;;
444 esac
445 opsys=darwin
446 ## Use fink packages if available.
447 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
448 ## if test -d /sw/include && test -d /sw/lib; then
449 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
450 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
451 ## fi
452 ;;
453
454 ## HP 9000 series 700 and 800, running HP/UX
455 hppa*-hp-hpux10.2* )
456 opsys=hpux10-20
457 ;;
458 hppa*-hp-hpux1[1-9]* )
459 opsys=hpux11
460 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
461 ;;
462
463 ## IBM machines
464 rs6000-ibm-aix4.[23]* )
465 opsys=aix4-2
466 ;;
467 powerpc-ibm-aix4.[23]* )
468 opsys=aix4-2
469 ;;
470 rs6000-ibm-aix[56]* )
471 opsys=aix4-2
472 ;;
473 powerpc-ibm-aix[56]* )
474 opsys=aix4-2
475 ;;
476
477 ## Silicon Graphics machines
478 ## Iris 4D
479 mips-sgi-irix6.5 )
480 opsys=irix6-5
481 # Without defining _LANGUAGE_C, things get masked out in the headers
482 # so that, for instance, grepping for `free' in stdlib.h fails and
483 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
484 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
485 ;;
486
487 ## Suns
488 *-sun-solaris* \
489 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
490 | x86_64-*-solaris2* | x86_64-*-sunos5*)
491 case "${canonical}" in
492 i[3456]86-*-* ) ;;
493 amd64-*-*|x86_64-*-*) ;;
494 sparc* ) ;;
495 * ) unported=yes ;;
496 esac
497 case "${canonical}" in
498 *-sunos5.6* | *-solaris2.6* )
499 opsys=sol2-6
500 RANLIB="ar -ts"
501 ;;
502 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
503 opsys=sol2-6
504 emacs_check_sunpro_c=yes
505 ;;
506 *-sunos5* | *-solaris* )
507 opsys=sol2-10
508 emacs_check_sunpro_c=yes
509 ;;
510 esac
511 ## Watch out for a compiler that we know will not work.
512 case "${canonical}" in
513 *-solaris* | *-sunos5* )
514 if [ "x$CC" = x/usr/ucb/cc ]; then
515 ## /usr/ucb/cc doesn't work;
516 ## we should find some other compiler that does work.
517 unset CC
518 fi
519 ;;
520 *) ;;
521 esac
522 ;;
523
524 ## Intel 386 machines where we don't care about the manufacturer.
525 i[3456]86-*-* )
526 case "${canonical}" in
527 *-cygwin ) opsys=cygwin ;;
528 *-darwin* ) opsys=darwin ;;
529 *-sysv4.2uw* ) opsys=unixware ;;
530 *-sysv5uw* ) opsys=unixware ;;
531 *-sysv5OpenUNIX* ) opsys=unixware ;;
532 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
533 esac
534 ;;
535
536 * )
537 unported=yes
538 ;;
539 esac
540
541 ### If the code above didn't choose an operating system, just choose
542 ### an operating system based on the configuration name. You really
543 ### only want to use this when you have no idea what the right
544 ### operating system is; if you know what operating systems a machine
545 ### runs, it's cleaner to make it explicit in the case statement
546 ### above.
547 if test x"${opsys}" = x; then
548 case "${canonical}" in
549 *-gnu* ) opsys=gnu ;;
550 * )
551 unported=yes
552 ;;
553 esac
554 fi
555
556 ]
557 dnl quotation ends
558
559 if test $unported = yes; then
560 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
561 Check `etc/MACHINES' for recognized configuration names.])
562 fi
563
564
565 #### Choose a compiler.
566
567 dnl Sets GCC=yes if using gcc.
568 AC_PROG_CC
569 AM_PROG_CC_C_O
570
571 if test x$GCC = xyes; then
572 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
573 else
574 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
575 fi
576
577 # Initialize gnulib right after choosing the compiler.
578 gl_EARLY
579
580 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
581 # if -g3 works and the user does not specify CFLAGS.
582 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
583 if test "$ac_test_CFLAGS" != set; then
584 case $CFLAGS in
585 '-g')
586 emacs_g3_CFLAGS='-g3';;
587 '-g -O2')
588 emacs_g3_CFLAGS='-g3 -O2';;
589 *)
590 emacs_g3_CFLAGS='';;
591 esac
592 if test -n "$emacs_g3_CFLAGS"; then
593 emacs_save_CFLAGS=$CFLAGS
594 CFLAGS=$emacs_g3_CFLAGS
595 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
596 [emacs_cv_prog_cc_g3],
597 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
598 [emacs_cv_prog_cc_g3=yes],
599 [emacs_cv_prog_cc_g3=no])])
600 if test $emacs_cv_prog_cc_g3 = yes; then
601 CFLAGS=$emacs_g3_CFLAGS
602 else
603 CFLAGS=$emacs_save_CFLAGS
604 fi
605 fi
606 fi
607
608 AC_ARG_ENABLE([gcc-warnings],
609 [AS_HELP_STRING([--enable-gcc-warnings],
610 [turn on lots of GCC warnings. This is intended for
611 developers, and may generate false alarms when used
612 with older or non-GNU development tools.])],
613 [case $enableval in
614 yes|no) ;;
615 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
616 esac
617 gl_gcc_warnings=$enableval],
618 [gl_gcc_warnings=no]
619 )
620
621 AC_ARG_ENABLE(link-time-optimization,
622 [AS_HELP_STRING([--enable-link-time-optimization],
623 [build emacs with link-time optimization.
624 This is supported only for GCC since 4.5.0.])],
625 if test "${enableval}" != "no"; then
626 AC_MSG_CHECKING([whether link-time optimization is supported])
627 ac_lto_supported=no
628 if test x$GCC = xyes; then
629 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
630 if test x$CPUS != x; then
631 LTO="-flto=$CPUS"
632 else
633 LTO="-flto"
634 fi
635 old_CFLAGS=$CFLAGS
636 CFLAGS="$CFLAGS $LTO"
637 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
638 [ac_lto_supported=yes], [ac_lto_supported=no])
639 CFLAGS="$old_CFLAGS"
640 fi
641 AC_MSG_RESULT([$ac_lto_supported])
642 if test "$ac_lto_supported" = "yes"; then
643 CFLAGS="$CFLAGS $LTO"
644 fi
645 fi)
646
647 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
648 # ------------------------------------------------
649 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
650 # Otherwise, run RUN-IF-NOT-FOUND.
651 AC_DEFUN([gl_GCC_VERSION_IFELSE],
652 [AC_PREPROC_IFELSE(
653 [AC_LANG_PROGRAM(
654 [[
655 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
656 /* ok */
657 #else
658 # error "your version of gcc is older than $1.$2"
659 #endif
660 ]]),
661 ], [$3], [$4])
662 ]
663 )
664
665 # When compiling with GCC, prefer -isystem to -I when including system
666 # include files, to avoid generating useless diagnostics for the files.
667 if test "$gl_gcc_warnings" != yes; then
668 isystem='-I'
669 else
670 isystem='-isystem '
671
672 # This, $nw, is the list of warnings we disable.
673 nw=
674
675 case $with_x_toolkit in
676 lucid | athena | motif)
677 # Old toolkits mishandle 'const'.
678 nw="$nw -Wwrite-strings"
679 ;;
680 *)
681 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
682 ;;
683 esac
684 AC_SUBST([WERROR_CFLAGS])
685
686 nw="$nw -Waggregate-return" # anachronistic
687 nw="$nw -Wlong-long" # C90 is anachronistic
688 nw="$nw -Wc++-compat" # We don't care about C++ compilers
689 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
690 nw="$nw -Wtraditional" # Warns on #elif which we use often
691 nw="$nw -Wcast-qual" # Too many warnings for now
692 nw="$nw -Wconversion" # Too many warnings for now
693 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
694 nw="$nw -Wsign-conversion" # Too many warnings for now
695 nw="$nw -Woverlength-strings" # Not a problem these days
696 nw="$nw -Wtraditional-conversion" # Too many warnings for now
697 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
698 nw="$nw -Wpadded" # Our structs are not padded
699 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
700 nw="$nw -Wlogical-op" # any use of fwrite provokes this
701 nw="$nw -Wformat-nonliteral" # we do this a lot
702 nw="$nw -Wvla" # warnings in gettext.h
703 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
704 nw="$nw -Wswitch-enum" # Too many warnings for now
705 nw="$nw -Wswitch-default" # Too many warnings for now
706 nw="$nw -Wfloat-equal" # warns about high-quality code
707 nw="$nw -Winline" # OK to ignore 'inline'
708 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
709 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
710
711 # Emacs doesn't care about shadowing; see
712 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
713 nw="$nw -Wshadow"
714
715 # The following lines should be removable at some point.
716 nw="$nw -Wstack-protector"
717 nw="$nw -Wstrict-overflow"
718 nw="$nw -Wsuggest-attribute=pure"
719
720 gl_MANYWARN_ALL_GCC([ws])
721 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
722 for w in $ws; do
723 gl_WARN_ADD([$w])
724 done
725 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
726 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
727 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
728 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
729 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-format-nonliteral])
731
732 # In spite of excluding -Wlogical-op above, it is enabled, as of
733 # gcc 4.5.0 20090517.
734 gl_WARN_ADD([-Wno-logical-op])
735
736 gl_WARN_ADD([-fdiagnostics-show-option])
737 gl_WARN_ADD([-funit-at-a-time])
738
739 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
740 AH_VERBATIM([FORTIFY_SOURCE],
741 [/* Enable compile-time and run-time bounds-checking, and some warnings,
742 without upsetting glibc 2.15+. */
743 #if defined __OPTIMIZE__ && __OPTIMIZE__
744 # define _FORTIFY_SOURCE 2
745 #endif
746 ])
747 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
748
749 # We use a slightly smaller set of warning options for lib/.
750 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
751 nw=
752 nw="$nw -Wunused-macros"
753
754 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
755 AC_SUBST([GNULIB_WARN_CFLAGS])
756 fi
757
758
759
760 dnl Some other nice autoconf tests.
761 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
762 dnl AC_PROG_INSTALL
763 dnl AC_PROG_MKDIR_P
764 dnl if test "x$RANLIB" = x; then
765 dnl AC_PROG_RANLIB
766 dnl fi
767 AC_PROG_LN_S
768
769 AC_PATH_PROG(INSTALL_INFO, install-info, :,
770 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
771 dnl Don't use GZIP, which is used by gzip for additional parameters.
772 AC_PATH_PROG(GZIP_PROG, gzip)
773
774 if test $opsys = gnu-linux; then
775 AC_PATH_PROG(PAXCTL, paxctl,,
776 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
777 if test "X$PAXCTL" != X; then
778 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
779 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
780 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
781 else AC_MSG_RESULT(no); PAXCTL=""; fi])
782 fi
783 fi
784
785 ## Need makeinfo >= 4.7 (?) to build the manuals.
786 AC_PATH_PROG(MAKEINFO, makeinfo, no)
787 dnl By this stage, configure has already checked for egrep and set EGREP,
788 dnl or exited with an error if no egrep was found.
789 if test "$MAKEINFO" != "no" && \
790 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
791 MAKEINFO=no
792 fi
793
794 ## Makeinfo is unusual. For a released Emacs, the manuals are
795 ## pre-built, and not deleted by the normal clean rules. makeinfo is
796 ## therefore in the category of "special tools" not normally required, which
797 ## configure does not have to check for (eg autoconf itself).
798 ## In a Bazaar checkout on the other hand, the manuals are not included.
799 ## So makeinfo is a requirement to build from Bazaar, and configure
800 ## should test for it as it does for any other build requirement.
801 ## We use the presence of $srcdir/info/emacs to distinguish a release,
802 ## with pre-built manuals, from a Bazaar checkout.
803 HAVE_MAKEINFO=yes
804
805 if test "$MAKEINFO" = "no"; then
806 MAKEINFO=makeinfo
807 if test "x${with_makeinfo}" = "xno"; then
808 HAVE_MAKEINFO=no
809 elif test ! -e $srcdir/info/emacs; then
810 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
811 source tree does not seem to have pre-built manuals in the `info' directory.
812 Either install a suitable version of makeinfo, or re-run configure
813 with the `--without-makeinfo' option to build without the manuals.] )
814 fi
815 fi
816 AC_SUBST(HAVE_MAKEINFO)
817
818 dnl Just so that there is only a single place we need to edit.
819 INFO_EXT=.info
820 INFO_OPTS=--no-split
821 AC_SUBST(INFO_EXT)
822 AC_SUBST(INFO_OPTS)
823
824 dnl Add our options to ac_link now, after it is set up.
825
826 if test x$GCC = xyes; then
827 test "x$GCC_LINK_TEST_OPTIONS" != x && \
828 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
829 else
830 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
831 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
832 fi
833
834 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
835 dnl If we can link with the flag, it shouldn't do any harm anyhow.
836 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
837 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
838 dnl if not built to support GNU ld.
839
840 late_LDFLAGS=$LDFLAGS
841 if test x$GCC = xyes; then
842 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
843 else
844 LDFLAGS="$LDFLAGS -znocombreloc"
845 fi
846
847 AC_MSG_CHECKING([for -znocombreloc])
848 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
849 [AC_MSG_RESULT(yes)],
850 LDFLAGS=$late_LDFLAGS
851 [AC_MSG_RESULT(no)])
852
853
854 dnl The function dump-emacs will not be defined and temacs will do
855 dnl (load "loadup") automatically unless told otherwise.
856 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
857 case "$opsys" in
858 your-opsys-here) CANNOT_DUMP=yes ;;
859 esac
860
861 test "$CANNOT_DUMP" = "yes" && \
862 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
863
864 AC_SUBST(CANNOT_DUMP)
865
866
867 UNEXEC_OBJ=unexelf.o
868 case "$opsys" in
869 # MSDOS uses unexcoff.o
870 # MSWindows uses unexw32.o
871 aix4-2)
872 UNEXEC_OBJ=unexaix.o
873 ;;
874 cygwin)
875 UNEXEC_OBJ=unexcw.o
876 ;;
877 darwin)
878 UNEXEC_OBJ=unexmacosx.o
879 ;;
880 hpux10-20 | hpux11)
881 UNEXEC_OBJ=unexhp9k800.o
882 ;;
883 sol2-10)
884 # Use the Solaris dldump() function, called from unexsol.c, to dump
885 # emacs, instead of the generic ELF dump code found in unexelf.c.
886 # The resulting binary has a complete symbol table, and is better
887 # for debugging and other observability tools (debuggers, pstack, etc).
888 #
889 # If you encounter a problem using dldump(), please consider sending
890 # a message to the OpenSolaris tools-linking mailing list:
891 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
892 #
893 # It is likely that dldump() works with older Solaris too, but this has
894 # not been tested, so for now this change is for Solaris 10 or newer.
895 UNEXEC_OBJ=unexsol.o
896 ;;
897 esac
898
899 LD_SWITCH_SYSTEM=
900 case "$opsys" in
901 freebsd)
902 ## Let `ld' find image libs and similar things in /usr/local/lib.
903 ## The system compiler, GCC, has apparently been modified to not
904 ## look there, contrary to what a stock GCC would do.
905 ### It's not our place to do this. See bug#10313#17.
906 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
907 :
908 ;;
909
910 gnu-linux)
911 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
912 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
913 ;;
914
915 netbsd)
916 ### It's not our place to do this. See bug#10313#17.
917 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
918 :
919 ;;
920
921 openbsd)
922 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
923 ## otherwise Emacs dumps core on elf systems.
924 LD_SWITCH_SYSTEM="-Z"
925 ;;
926 esac
927 AC_SUBST(LD_SWITCH_SYSTEM)
928
929 ac_link="$ac_link $LD_SWITCH_SYSTEM"
930
931 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
932 ## which has not been defined yet. When this was handled with cpp,
933 ## it was expanded to null when configure sourced the s/*.h file.
934 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
935 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
936 ## (or somesuch), but because it is supposed to go at the _front_
937 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
938 ## Compare with the gnu-linux case below, which added to the end
939 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
940 ## LD_SWITCH_SYSTEM_TEMACS.
941 case "$opsys" in
942 netbsd|openbsd)
943 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
944 esac
945
946
947 C_SWITCH_MACHINE=
948 case $canonical in
949 alpha*)
950 AC_CHECK_DECL([__ELF__])
951 if test "$ac_cv_have_decl___ELF__" = "yes"; then
952 ## With ELF, make sure that all common symbols get allocated to in the
953 ## data section. Otherwise, the dump of temacs may miss variables in
954 ## the shared library that have been initialized. For example, with
955 ## GNU libc, __malloc_initialized would normally be resolved to the
956 ## shared library's .bss section, which is fatal.
957 if test "x$GCC" = "xyes"; then
958 C_SWITCH_MACHINE="-fno-common"
959 else
960 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
961 fi
962 else
963 UNEXEC_OBJ=unexalpha.o
964 fi
965 ;;
966 esac
967 AC_SUBST(C_SWITCH_MACHINE)
968
969 AC_SUBST(UNEXEC_OBJ)
970
971 C_SWITCH_SYSTEM=
972 ## Some programs in src produce warnings saying certain subprograms
973 ## are too complex and need a MAXMEM value greater than 2000 for
974 ## additional optimization. --nils@exp-math.uni-essen.de
975 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
976 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
977 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
978 ## It is redundant in glibc2, since we define _GNU_SOURCE.
979 AC_SUBST(C_SWITCH_SYSTEM)
980
981
982 LIBS_SYSTEM=
983 case "$opsys" in
984 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
985 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
986
987 freebsd) LIBS_SYSTEM="-lutil" ;;
988
989 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
990
991 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
992
993 ## Motif needs -lgen.
994 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
995 esac
996 AC_SUBST(LIBS_SYSTEM)
997
998
999 ### Make sure subsequent tests use flags consistent with the build flags.
1000
1001 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1002 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1003 else
1004 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1005 fi
1006
1007 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1008 AC_DEFUN([AC_TYPE_SIZE_T])
1009 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1010 AC_DEFUN([AC_TYPE_UID_T])
1011
1012
1013 LIB_MATH=-lm
1014 LIB_STANDARD=
1015 START_FILES=
1016 dnl Current possibilities handled by sed (aix4-2 -> aix,
1017 dnl gnu-linux -> gnu/linux, etc.):
1018 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1019 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1020 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1021
1022 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1023 case $opsys in
1024 cygwin )
1025 LIB_MATH=
1026 START_FILES='pre-crt0.o'
1027 ;;
1028 darwin )
1029 ## Adding -lm confuses the dynamic linker, so omit it.
1030 LIB_MATH=
1031 START_FILES='pre-crt0.o'
1032 ;;
1033 freebsd )
1034 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1035 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1036 SYSTEM_TYPE=berkeley-unix
1037 ;;
1038 gnu-linux | gnu-kfreebsd )
1039 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1040 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1041 ;;
1042 hpux10-20 | hpux11 )
1043 LIB_STANDARD=-lc
1044 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1045 ;;
1046 dnl NB this may be adjusted below.
1047 netbsd | openbsd )
1048 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1049 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1050 SYSTEM_TYPE=berkeley-unix
1051 ;;
1052
1053 sol2* | unixware )
1054 SYSTEM_TYPE=usg-unix-v
1055 ;;
1056
1057 esac
1058
1059 AC_SUBST(LIB_MATH)
1060 AC_SUBST(START_FILES)
1061 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1062 [The type of system you are compiling for; sets `system-type'.])
1063
1064 dnl Not all platforms use crtn.o files. Check if the current one does.
1065 crt_files=
1066
1067 for file in x $LIB_STANDARD $START_FILES; do
1068 case "$file" in
1069 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1070 esac
1071 done
1072
1073 if test "x$crt_files" != x; then
1074
1075 ## If user specified a crt-dir, use that unconditionally.
1076 crt_gcc=no
1077
1078 if test "X$CRT_DIR" = "X"; then
1079
1080 CRT_DIR=/usr/lib # default
1081
1082 case "$canonical" in
1083 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1084 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1085 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1086 ## For anything else (eg /usr/lib32), it is up the user to specify
1087 ## the location (bug#5655).
1088 ## Test for crtn.o, not just the directory, because sometimes the
1089 ## directory exists but does not have the relevant files (bug#1287).
1090 ## FIXME better to test for binary compatibility somehow.
1091 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1092 ;;
1093
1094 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1095 esac
1096
1097 case "$opsys" in
1098 hpux10-20) CRT_DIR=/lib ;;
1099 esac
1100
1101 test "x${GCC}" = xyes && crt_gcc=yes
1102
1103 fi # CRT_DIR = ""
1104
1105 crt_missing=
1106
1107 for file in $crt_files; do
1108
1109 ## If we're using gcc, try to determine it automatically by asking
1110 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1111 ## system-dependent default from above.]
1112 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1113
1114 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1115 case "$crt_file" in
1116 */*)
1117 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1118 ;;
1119 esac
1120 fi
1121
1122 dnl We expect all the files to be in a single directory, so after the
1123 dnl first there is no point asking gcc.
1124 crt_gcc=no
1125
1126 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1127 done # $crt_files
1128
1129 test "x$crt_missing" = x || \
1130 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1131 Try using the --with-crt-dir option.])
1132
1133 fi # crt_files != ""
1134
1135 AC_SUBST(CRT_DIR)
1136
1137 case $opsys in
1138 netbsd | openbsd )
1139 if test -f $CRT_DIR/crti.o; then
1140
1141 test -f $CRT_DIR/crtn.o || \
1142 AC_MSG_ERROR([Required file not found: crtn.o])
1143
1144 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1145 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1146 fi
1147 ;;
1148 esac
1149
1150
1151 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1152 pre_PKG_CONFIG_LIBS=$LIBS
1153
1154 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1155
1156 dnl This function definition taken from Gnome 2.0
1157 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1158 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1159 dnl also defines GSTUFF_PKG_ERRORS on error
1160 AC_DEFUN([PKG_CHECK_MODULES], [
1161 succeeded=no
1162
1163 if test "$PKG_CONFIG" = "no" ; then
1164 ifelse([$4], , [AC_MSG_ERROR([
1165 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to 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])
1166 else
1167 PKG_CONFIG_MIN_VERSION=0.9.0
1168 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1169 AC_MSG_CHECKING(for $2)
1170
1171 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1172 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1173 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1174 edit_cflags="
1175 s,///*,/,g
1176 s/^/ /
1177 s/ -I/ $isystem/g
1178 s/^ //
1179 "
1180 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1181 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1182 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1183 succeeded=yes
1184 else
1185 AC_MSG_RESULT(no)
1186 $1_CFLAGS=""
1187 $1_LIBS=""
1188 ## If we have a custom action on failure, don't print errors, but
1189 ## do set a variable so people can do so.
1190 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1191 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1192 fi
1193
1194 AC_SUBST($1_CFLAGS)
1195 AC_SUBST($1_LIBS)
1196 else
1197 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1198 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1199 fi
1200 fi
1201
1202 if test $succeeded = yes; then
1203 ifelse([$3], , :, [$3])
1204 else
1205 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])
1206 fi
1207 ])
1208
1209
1210 if test "${with_sound}" != "no"; then
1211 # Sound support for GNU/Linux and the free BSDs.
1212 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1213 have_sound_header=yes)
1214 # Emulation library used on NetBSD.
1215 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1216 AC_SUBST(LIBSOUND)
1217
1218 ALSA_REQUIRED=1.0.0
1219 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1220 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1221 if test $HAVE_ALSA = yes; then
1222 SAVE_CFLAGS="$CFLAGS"
1223 SAVE_LIBS="$LIBS"
1224 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1225 LIBS="$ALSA_LIBS $LIBS"
1226 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1227 emacs_alsa_normal=yes,
1228 emacs_alsa_normal=no)
1229 if test "$emacs_alsa_normal" != yes; then
1230 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1231 [[snd_lib_error_set_handler (0);]])],
1232 emacs_alsa_subdir=yes,
1233 emacs_alsa_subdir=no)
1234 if test "$emacs_alsa_subdir" != yes; then
1235 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1236 fi
1237 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1238 fi
1239
1240 CFLAGS="$SAVE_CFLAGS"
1241 LIBS="$SAVE_LIBS"
1242 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1243 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1244 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1245 fi
1246
1247 dnl Define HAVE_SOUND if we have sound support. We know it works and
1248 dnl compiles only on the specified platforms. For others, it
1249 dnl probably doesn't make sense to try.
1250 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1251 case "$opsys" in
1252 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1253 gnu-linux|freebsd|netbsd)
1254 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1255 ;;
1256 esac
1257 fi
1258
1259 AC_SUBST(CFLAGS_SOUND)
1260 fi
1261
1262 dnl checks for header files
1263 AC_CHECK_HEADERS_ONCE(
1264 linux/version.h sys/systeminfo.h
1265 stdio_ext.h fcntl.h coff.h pty.h
1266 sys/vlimit.h sys/resource.h
1267 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1268
1269 AC_MSG_CHECKING(if personality LINUX32 can be set)
1270 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1271 emacs_cv_personality_linux32=yes,
1272 emacs_cv_personality_linux32=no)
1273 AC_MSG_RESULT($emacs_cv_personality_linux32)
1274
1275 if test $emacs_cv_personality_linux32 = yes; then
1276 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1277 [Define to 1 if personality LINUX32 can be set.])
1278 fi
1279
1280 dnl On Solaris 8 there's a compilation warning for term.h because
1281 dnl it doesn't define `bool'.
1282 AC_CHECK_HEADERS(term.h, , , -)
1283 AC_HEADER_TIME
1284 AC_CHECK_DECLS([sys_siglist])
1285 if test $ac_cv_have_decl_sys_siglist != yes; then
1286 # For Tru64, at least:
1287 AC_CHECK_DECLS([__sys_siglist])
1288 if test $ac_cv_have_decl___sys_siglist = yes; then
1289 AC_DEFINE(sys_siglist, __sys_siglist,
1290 [Define to any substitute for sys_siglist.])
1291 fi
1292 fi
1293 AC_HEADER_SYS_WAIT
1294
1295 dnl Check for speed_t typedef.
1296 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1297 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1298 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1299 if test $emacs_cv_speed_t = yes; then
1300 AC_DEFINE(HAVE_SPEED_T, 1,
1301 [Define to 1 if `speed_t' is declared by <termios.h>.])
1302 fi
1303
1304 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1305 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1306 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1307 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1308 HAVE_EXCEPTION=$emacs_cv_struct_exception
1309 dnl Define on Darwin so emacs symbols will not conflict with those
1310 dnl in the System framework. Otherwise -prebind will not work.
1311 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1312 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1313 fi
1314
1315 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1316 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1317 #if HAVE_SYS_SOCKET_H
1318 #include <sys/socket.h>
1319 #endif])
1320 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1321 #if HAVE_SYS_SOCKET_H
1322 #include <sys/socket.h>
1323 #endif])
1324 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1325 #if HAVE_SYS_SOCKET_H
1326 #include <sys/socket.h>
1327 #endif])
1328
1329 dnl checks for structure members
1330 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1331 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1332 struct ifreq.ifr_addr,
1333 struct ifreq.ifr_addr.sa_len], , ,
1334 [AC_INCLUDES_DEFAULT
1335 #if HAVE_SYS_SOCKET_H
1336 #include <sys/socket.h>
1337 #endif
1338 #if HAVE_NET_IF_H
1339 #include <net/if.h>
1340 #endif])
1341
1342 dnl Check for endianness.
1343 dnl AC_C_BIGENDIAN is done by gnulib.
1344
1345 dnl check for Make feature
1346 dnl AC_PROG_MAKE_SET is done by Automake.
1347
1348 DEPFLAGS=
1349 MKDEPDIR=":"
1350 deps_frag=deps.mk
1351 dnl check for GNU Make if we have GCC and autodepend is on.
1352 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1353 AC_MSG_CHECKING([whether we are using GNU Make])
1354 HAVE_GNU_MAKE=no
1355 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1356 if test "x$testval" != x; then
1357 HAVE_GNU_MAKE=yes
1358 else
1359 ac_enable_autodepend=no
1360 fi
1361 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1362 if test $HAVE_GNU_MAKE = yes; then
1363 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1364 SAVE_CFLAGS="$CFLAGS"
1365 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1366 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1367 CFLAGS="$SAVE_CFLAGS"
1368 test -f deps.d || ac_enable_autodepend=no
1369 rm -rf deps.d
1370 AC_MSG_RESULT([$ac_enable_autodepend])
1371 fi
1372 if test $ac_enable_autodepend = yes; then
1373 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1374 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1375 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1376 deps_frag=autodeps.mk
1377 fi
1378 fi
1379 deps_frag=$srcdir/src/$deps_frag
1380 AC_SUBST(MKDEPDIR)
1381 AC_SUBST(DEPFLAGS)
1382 AC_SUBST_FILE(deps_frag)
1383
1384
1385 lisp_frag=$srcdir/src/lisp.mk
1386 AC_SUBST_FILE(lisp_frag)
1387
1388
1389 dnl checks for operating system services
1390 AC_SYS_LONG_FILE_NAMES
1391
1392 #### Choose a window system.
1393
1394 ## We leave window_system equal to none if
1395 ## we end up building without one. Any new window system should
1396 ## set window_system to an appropriate value and add objects to
1397 ## window-system-specific substs.
1398
1399 window_system=none
1400 AC_PATH_X
1401 if test "$no_x" != yes; then
1402 window_system=x11
1403 fi
1404
1405 LD_SWITCH_X_SITE_RPATH=
1406 if test "${x_libraries}" != NONE; then
1407 if test -n "${x_libraries}"; then
1408 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1409 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1410 fi
1411 x_default_search_path=""
1412 x_search_path=${x_libraries}
1413 if test -z "${x_search_path}"; then
1414 x_search_path=/usr/lib
1415 fi
1416 for x_library in `echo ${x_search_path}: | \
1417 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1418 x_search_path="\
1419 ${x_library}/X11/%L/%T/%N%C%S:\
1420 ${x_library}/X11/%l/%T/%N%C%S:\
1421 ${x_library}/X11/%T/%N%C%S:\
1422 ${x_library}/X11/%L/%T/%N%S:\
1423 ${x_library}/X11/%l/%T/%N%S:\
1424 ${x_library}/X11/%T/%N%S"
1425 if test x"${x_default_search_path}" = x; then
1426 x_default_search_path=${x_search_path}
1427 else
1428 x_default_search_path="${x_search_path}:${x_default_search_path}"
1429 fi
1430 done
1431 fi
1432 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1433
1434 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1435 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1436 fi
1437
1438 if test x"${x_includes}" = x; then
1439 bitmapdir=/usr/include/X11/bitmaps
1440 else
1441 # accumulate include directories that have X11 bitmap subdirectories
1442 bmd_acc="dummyval"
1443 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1444 if test -d "${bmd}/X11/bitmaps"; then
1445 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1446 fi
1447 if test -d "${bmd}/bitmaps"; then
1448 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1449 fi
1450 done
1451 if test ${bmd_acc} != "dummyval"; then
1452 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1453 fi
1454 fi
1455
1456 HAVE_NS=no
1457 NS_IMPL_COCOA=no
1458 NS_IMPL_GNUSTEP=no
1459 tmp_CPPFLAGS="$CPPFLAGS"
1460 tmp_CFLAGS="$CFLAGS"
1461 CPPFLAGS="$CPPFLAGS -x objective-c"
1462 CFLAGS="$CFLAGS -x objective-c"
1463 TEMACS_LDFLAGS2="\${LDFLAGS}"
1464 GNU_OBJC_CFLAGS=
1465 if test "${with_ns}" != no; then
1466 if test "${opsys}" = darwin; then
1467 NS_IMPL_COCOA=yes
1468 ns_appdir=`pwd`/nextstep/Emacs.app
1469 ns_appbindir=${ns_appdir}/Contents/MacOS
1470 ns_appresdir=${ns_appdir}/Contents/Resources
1471 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1472 elif test -f $GNUSTEP_CONFIG_FILE; then
1473 NS_IMPL_GNUSTEP=yes
1474 ns_appdir=`pwd`/nextstep/Emacs.app
1475 ns_appbindir=${ns_appdir}
1476 ns_appresdir=${ns_appdir}/Resources
1477 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1478 dnl FIXME sourcing this several times in subshells seems inefficient.
1479 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1480 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1481 dnl I seemed to need these as well with GNUstep-startup 0.25.
1482 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1483 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1484 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1485 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1486 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1487 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1488 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1489 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1490 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1491 LIB_STANDARD=
1492 START_FILES=
1493 TEMACS_LDFLAGS2=
1494 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1495 dnl If they had chosen to either define it or not, we could have
1496 dnl just used AC_CHECK_DECL here.
1497 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1498 emacs_cv_objc_exceptions,
1499 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1500 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1501 1;
1502 #else
1503 fail;
1504 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1505 if test $emacs_cv_objc_exceptions = yes; then
1506 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1507 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1508 [Define if GNUstep uses ObjC exceptions.])
1509 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1510 fi
1511 fi
1512
1513 dnl This is only used while we test the NS headers, it gets reset below.
1514 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1515
1516 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1517 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1518 files are missing or cannot be compiled.])])
1519 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1520 [NSInteger i;])],
1521 ns_have_nsinteger=yes,
1522 ns_have_nsinteger=no)
1523 if test $ns_have_nsinteger = yes; then
1524 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1525 fi
1526 fi
1527 AC_SUBST(TEMACS_LDFLAGS2)
1528
1529 INSTALL_ARCH_INDEP_EXTRA=install-etc
1530 ns_self_contained=no
1531 ns_frag=/dev/null
1532 NS_OBJ=
1533 NS_OBJC_OBJ=
1534 if test "${HAVE_NS}" = yes; then
1535 if test "$with_toolkit_scroll_bars" = "no"; then
1536 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1537 fi
1538
1539 window_system=nextstep
1540 # set up packaging dirs
1541 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1542 ns_self_contained=yes
1543 prefix=${ns_appresdir}
1544 exec_prefix=${ns_appbindir}
1545 dnl This one isn't really used, only archlibdir is.
1546 libexecdir="\${ns_appbindir}/libexec"
1547 archlibdir="\${ns_appbindir}/libexec"
1548 docdir="\${ns_appresdir}/etc"
1549 etcdir="\${ns_appresdir}/etc"
1550 dnl FIXME maybe set datarootdir instead.
1551 dnl That would also get applications, icons, man.
1552 infodir="\${ns_appresdir}/info"
1553 mandir="\${ns_appresdir}/man"
1554 lispdir="\${ns_appresdir}/lisp"
1555 leimdir="\${ns_appresdir}/leim"
1556 INSTALL_ARCH_INDEP_EXTRA=
1557 fi
1558 ns_frag=$srcdir/src/ns.mk
1559 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1560 fi
1561 CFLAGS="$tmp_CFLAGS"
1562 CPPFLAGS="$tmp_CPPFLAGS"
1563 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1564 AC_SUBST(ns_self_contained)
1565 AC_SUBST(NS_OBJ)
1566 AC_SUBST(NS_OBJC_OBJ)
1567 AC_SUBST(LIB_STANDARD)
1568 AC_SUBST_FILE(ns_frag)
1569
1570 ## $window_system is now set to the window system we will
1571 ## ultimately use.
1572
1573 term_header=
1574 HAVE_X_WINDOWS=no
1575 HAVE_X11=no
1576 USE_X_TOOLKIT=none
1577
1578 case "${window_system}" in
1579 x11 )
1580 HAVE_X_WINDOWS=yes
1581 HAVE_X11=yes
1582 term_header=xterm.h
1583 case "${with_x_toolkit}" in
1584 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1585 motif ) USE_X_TOOLKIT=MOTIF ;;
1586 gtk ) with_gtk=yes
1587 term_header=gtkutil.h
1588 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1589 dnl USE_X_TOOLKIT is set.
1590 USE_X_TOOLKIT=none ;;
1591 gtk3 ) with_gtk3=yes
1592 term_header=gtkutil.h
1593 USE_X_TOOLKIT=none ;;
1594 no ) USE_X_TOOLKIT=none ;;
1595 dnl If user did not say whether to use a toolkit, make this decision later:
1596 dnl use the toolkit if we have gtk, or X11R5 or newer.
1597 * ) USE_X_TOOLKIT=maybe ;;
1598 esac
1599 ;;
1600 nextstep )
1601 term_header=nsterm.h
1602 ;;
1603 esac
1604
1605 if test -n "${term_header}"; then
1606 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1607 [Define to the header for the built-in window system.])
1608 fi
1609
1610 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1611 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1612 if test "$HAVE_XSERVER" = true ||
1613 test -n "$DISPLAY" ||
1614 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1615 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1616 were found. You should install the relevant development files for X
1617 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1618 sure you have development files for image handling, i.e.
1619 tiff, gif, jpeg, png and xpm.
1620 If you are sure you want Emacs compiled without X window support, pass
1621 --without-x
1622 to configure.])
1623 fi
1624 fi
1625
1626 ### If we're using X11, we should use the X menu package.
1627 HAVE_MENUS=no
1628 case ${HAVE_X11} in
1629 yes ) HAVE_MENUS=yes ;;
1630 esac
1631
1632 # Does the opsystem file prohibit the use of the GNU malloc?
1633 # Assume not, until told otherwise.
1634 GNU_MALLOC=yes
1635
1636 AC_CACHE_CHECK(
1637 [whether malloc is Doug Lea style],
1638 [emacs_cv_var_doug_lea_malloc],
1639 [AC_LINK_IFELSE(
1640 [AC_LANG_PROGRAM(
1641 [[#include <malloc.h>
1642 static void hook (void) {}]],
1643 [[malloc_set_state (malloc_get_state ());
1644 __after_morecore_hook = hook;
1645 __malloc_initialize_hook = hook;]])],
1646 [emacs_cv_var_doug_lea_malloc=yes],
1647 [emacs_cv_var_doug_lea_malloc=no])])
1648 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1649
1650
1651 dnl See comments in aix4-2.h about maybe using system malloc there.
1652 system_malloc=no
1653 case "$opsys" in
1654 ## darwin ld insists on the use of malloc routines in the System framework.
1655 darwin|sol2-10) system_malloc=yes ;;
1656 esac
1657
1658 if test "${system_malloc}" = "yes"; then
1659 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1660 GNU_MALLOC=no
1661 GNU_MALLOC_reason="
1662 (The GNU allocators don't work with this system configuration.)"
1663 GMALLOC_OBJ=
1664 VMLIMIT_OBJ=
1665 else
1666 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1667 VMLIMIT_OBJ=vm-limit.o
1668 fi
1669 AC_SUBST(GMALLOC_OBJ)
1670 AC_SUBST(VMLIMIT_OBJ)
1671
1672 if test "$doug_lea_malloc" = "yes" ; then
1673 if test "$GNU_MALLOC" = yes ; then
1674 GNU_MALLOC_reason="
1675 (Using Doug Lea's new malloc from the GNU C Library.)"
1676 fi
1677 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1678 [Define to 1 if you are using the GNU C Library.])
1679
1680 ## Use mmap directly for allocating larger buffers.
1681 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1682 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1683 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1684 case "$opsys" in
1685 gnu*) REL_ALLOC=no ;;
1686 esac
1687 fi
1688
1689 if test x"${REL_ALLOC}" = x; then
1690 REL_ALLOC=${GNU_MALLOC}
1691 fi
1692
1693 use_mmap_for_buffers=no
1694 case "$opsys" in
1695 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1696 esac
1697
1698 AC_FUNC_MMAP
1699 if test $use_mmap_for_buffers = yes; then
1700 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1701 REL_ALLOC=no
1702 fi
1703
1704 LIBS="$LIBS_SYSTEM $LIBS"
1705
1706 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1707 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1708 AC_CHECK_LIB(dnet, dnet_ntoa)
1709 dnl This causes -lresolv to get used in subsequent tests,
1710 dnl which causes failures on some systems such as HPUX 9.
1711 dnl AC_CHECK_LIB(resolv, gethostbyname)
1712
1713 dnl FIXME replace main with a function we actually want from this library.
1714 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1715
1716 dnl Check if pthreads is available.
1717 LIB_PTHREAD=
1718 AC_CHECK_HEADERS_ONCE(pthread.h)
1719 if test "$ac_cv_header_pthread_h"; then
1720 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1721 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1722 dnl testing for pthread_self if Emacs uses gmalloc.c.
1723 if test "$GMALLOC_OBJ" = gmalloc.o; then
1724 emacs_pthread_function=pthread_atfork
1725 else
1726 emacs_pthread_function=pthread_self
1727 fi
1728 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1729 fi
1730 if test "$HAVE_PTHREAD" = yes; then
1731 case "${canonical}" in
1732 *-hpux*) ;;
1733 *) LIB_PTHREAD="-lpthread"
1734 LIBS="$LIB_PTHREAD $LIBS" ;;
1735 esac
1736 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1737 fi
1738 AC_SUBST([LIB_PTHREAD])
1739
1740 AC_CHECK_LIB(pthreads, cma_open)
1741
1742 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1743 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1744 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1745 ## added to LIBS in configure would never contain the pthreads part,
1746 ## but the value used in Makefiles might. FIXME?
1747 ##
1748 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1749 ## be harmless on older versions of X where it happens to exist.
1750 test "$opsys" = "aix4-2" && \
1751 test $ac_cv_lib_pthreads_cma_open = yes && \
1752 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1753
1754 dnl Check for need for bigtoc support on IBM AIX
1755
1756 case ${host_os} in
1757 aix*)
1758 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1759 case $GCC in
1760 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1761 *) gdb_cv_bigtoc=-bbigtoc ;;
1762 esac
1763
1764 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1765 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1766 ])
1767 ;;
1768 esac
1769
1770 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1771 # used for the tests that follow. We set them back to REAL_CFLAGS and
1772 # REAL_CPPFLAGS later on.
1773
1774 REAL_CFLAGS="$CFLAGS"
1775 REAL_CPPFLAGS="$CPPFLAGS"
1776
1777 if test "${HAVE_X11}" = "yes"; then
1778 DEFS="$C_SWITCH_X_SITE $DEFS"
1779 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1780 LIBS="-lX11 $LIBS"
1781 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1782 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1783
1784 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1785 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1786 # but it's more convenient here to set LD_RUN_PATH since this
1787 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1788 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1789 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1790 export LD_RUN_PATH
1791 fi
1792
1793 if test "${opsys}" = "gnu-linux"; then
1794 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1795 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1796 [[XOpenDisplay ("foo");]])],
1797 [xgnu_linux_first_failure=no],
1798 [xgnu_linux_first_failure=yes])
1799 if test "${xgnu_linux_first_failure}" = "yes"; then
1800 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1801 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1802 OLD_CPPFLAGS="$CPPFLAGS"
1803 OLD_LIBS="$LIBS"
1804 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1805 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1806 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1807 LIBS="$LIBS -b i486-linuxaout"
1808 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1809 [[XOpenDisplay ("foo");]])],
1810 [xgnu_linux_second_failure=no],
1811 [xgnu_linux_second_failure=yes])
1812 if test "${xgnu_linux_second_failure}" = "yes"; then
1813 # If we get the same failure with -b, there is no use adding -b.
1814 # So take it out. This plays safe.
1815 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1816 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1817 CPPFLAGS="$OLD_CPPFLAGS"
1818 LIBS="$OLD_LIBS"
1819 AC_MSG_RESULT(no)
1820 else
1821 AC_MSG_RESULT(yes)
1822 fi
1823 else
1824 AC_MSG_RESULT(no)
1825 fi
1826 fi
1827
1828 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1829 # header files included from there.
1830 AC_MSG_CHECKING(for Xkb)
1831 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1832 #include <X11/XKBlib.h>]],
1833 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1834 emacs_xkb=yes, emacs_xkb=no)
1835 AC_MSG_RESULT($emacs_xkb)
1836 if test $emacs_xkb = yes; then
1837 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1838 fi
1839
1840 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1841 XScreenNumberOfScreen)
1842 fi
1843
1844 if test "${window_system}" = "x11"; then
1845 AC_MSG_CHECKING(X11 version 6)
1846 AC_CACHE_VAL(emacs_cv_x11_version_6,
1847 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1848 [[#if XlibSpecificationRelease < 6
1849 fail;
1850 #endif
1851 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1852 if test $emacs_cv_x11_version_6 = yes; then
1853 AC_MSG_RESULT(6 or newer)
1854 AC_DEFINE(HAVE_X11R6, 1,
1855 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1856 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1857 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1858 ## XIM support.
1859 case "$opsys" in
1860 sol2-*) : ;;
1861 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1862 [Define if you have usable X11R6-style XIM support.])
1863 ;;
1864 esac
1865 else
1866 AC_MSG_RESULT(before 6)
1867 fi
1868 fi
1869
1870
1871 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1872 HAVE_RSVG=no
1873 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1874 if test "${with_rsvg}" != "no"; then
1875 RSVG_REQUIRED=2.11.0
1876 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1877
1878 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1879 AC_SUBST(RSVG_CFLAGS)
1880 AC_SUBST(RSVG_LIBS)
1881
1882 if test $HAVE_RSVG = yes; then
1883 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1884 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1885 LIBS="$RSVG_LIBS $LIBS"
1886 fi
1887 fi
1888 fi
1889
1890 HAVE_IMAGEMAGICK=no
1891 if test "${HAVE_X11}" = "yes"; then
1892 if test "${with_imagemagick}" != "no"; then
1893 ## 6.2.8 is the earliest version known to work, but earlier versions
1894 ## might work - let us know if you find one.
1895 ## 6.0.7 does not work. See bug#7955.
1896 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1897 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1898 AC_SUBST(IMAGEMAGICK_CFLAGS)
1899 AC_SUBST(IMAGEMAGICK_LIBS)
1900
1901 if test $HAVE_IMAGEMAGICK = yes; then
1902 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1903 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1904 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1905 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1906 fi
1907 fi
1908 fi
1909
1910
1911 HAVE_GTK=no
1912 GTK_OBJ=
1913 if test "${with_gtk3}" = "yes"; then
1914 GLIB_REQUIRED=2.28
1915 GTK_REQUIRED=3.0
1916 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1917
1918 dnl Checks for libraries.
1919 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1920 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1921 AC_MSG_ERROR($GTK_PKG_ERRORS)
1922 fi
1923 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1924 GTK_OBJ=emacsgtkfixed.o
1925 term_header=gtkutil.h
1926 fi
1927
1928 if test "$pkg_check_gtk" != "yes"; then
1929 HAVE_GTK=no
1930 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1931 GLIB_REQUIRED=2.10
1932 GTK_REQUIRED=2.10
1933 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1934
1935 dnl Checks for libraries.
1936 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1937 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1938 AC_MSG_ERROR($GTK_PKG_ERRORS)
1939 fi
1940 fi
1941 fi
1942
1943 if test x"$pkg_check_gtk" = xyes; then
1944
1945 AC_SUBST(GTK_CFLAGS)
1946 AC_SUBST(GTK_LIBS)
1947 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1948 CFLAGS="$CFLAGS $GTK_CFLAGS"
1949 LIBS="$GTK_LIBS $LIBS"
1950 dnl Try to compile a simple GTK program.
1951 GTK_COMPILES=no
1952 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1953 if test "${GTK_COMPILES}" != "yes"; then
1954 if test "$USE_X_TOOLKIT" != "maybe"; then
1955 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1956 fi
1957 else
1958 HAVE_GTK=yes
1959 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1960 GTK_OBJ="gtkutil.o $GTK_OBJ"
1961 USE_X_TOOLKIT=none
1962 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1963 :
1964 else
1965 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1966 closing open displays. This is no problem if you just use
1967 one display, but if you use more than one and close one of them
1968 Emacs may crash.]])
1969 sleep 3
1970 fi
1971 fi
1972
1973 fi
1974 AC_SUBST(GTK_OBJ)
1975
1976
1977 if test "${HAVE_GTK}" = "yes"; then
1978
1979 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1980 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1981 if test "$with_toolkit_scroll_bars" != no; then
1982 with_toolkit_scroll_bars=yes
1983 fi
1984
1985 dnl Check if we have the old file selection dialog declared and
1986 dnl in the link library. In 2.x it may be in the library,
1987 dnl but not declared if deprecated featured has been selected out.
1988 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1989 HAVE_GTK_FILE_SELECTION=no
1990 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1991 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1992 #include <gtk/gtk.h>])
1993 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1994 AC_CHECK_FUNCS(gtk_file_selection_new)
1995 fi
1996
1997
1998 dnl Check for functions introduced in 2.14 and later.
1999 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2000 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2001 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2002 gtk_orientable_set_orientation \
2003 gtk_window_set_has_resize_grip)
2004
2005 term_header=gtkutil.h
2006 fi
2007
2008 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2009 dnl other platforms.
2010 HAVE_DBUS=no
2011 DBUS_OBJ=
2012 if test "${with_dbus}" = "yes"; then
2013 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2014 if test "$HAVE_DBUS" = yes; then
2015 LIBS="$LIBS $DBUS_LIBS"
2016 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2017 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2018 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2019 dnl D-Bus 1.5.12.
2020 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2021 dbus_type_is_valid \
2022 dbus_validate_bus_name \
2023 dbus_validate_path \
2024 dbus_validate_interface \
2025 dbus_validate_member)
2026 DBUS_OBJ=dbusbind.o
2027 fi
2028 fi
2029 AC_SUBST(DBUS_OBJ)
2030
2031 dnl GSettings has been tested under GNU/Linux only.
2032 HAVE_GSETTINGS=no
2033 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2034 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2035 if test "$HAVE_GSETTINGS" = "yes"; then
2036 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2037 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2038 SETTINGS_LIBS="$GSETTINGS_LIBS"
2039 fi
2040 fi
2041
2042 dnl GConf has been tested under GNU/Linux only.
2043 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2044 HAVE_GCONF=no
2045 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2046 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2047 if test "$HAVE_GCONF" = yes; then
2048 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2049 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2050 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2051 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2052 fi
2053 fi
2054
2055 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2056 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2057 if test "$HAVE_GOBJECT" = "yes"; then
2058 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2059 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2060 fi
2061 SAVE_CFLAGS="$CFLAGS"
2062 SAVE_LIBS="$LIBS"
2063 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2064 LIBS="$SETTINGS_LIBS $LIBS"
2065 AC_CHECK_FUNCS([g_type_init])
2066 CFLAGS="$SAVE_CFLAGS"
2067 LIBS="$SAVE_LIBS"
2068 fi
2069 AC_SUBST(SETTINGS_CFLAGS)
2070 AC_SUBST(SETTINGS_LIBS)
2071
2072
2073 dnl SELinux is available for GNU/Linux only.
2074 HAVE_LIBSELINUX=no
2075 LIBSELINUX_LIBS=
2076 if test "${with_selinux}" = "yes"; then
2077 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2078 if test "$HAVE_LIBSELINUX" = yes; then
2079 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2080 LIBSELINUX_LIBS=-lselinux
2081 fi
2082 fi
2083 AC_SUBST(LIBSELINUX_LIBS)
2084
2085 HAVE_GNUTLS=no
2086 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2087 if test "${with_gnutls}" = "yes" ; then
2088 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2089 if test "${HAVE_GNUTLS}" = "yes"; then
2090 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2091 fi
2092
2093 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2094 LIBS="$LIBGNUTLS_LIBS $LIBS"
2095 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2096
2097 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2098 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2099 fi
2100 fi
2101
2102 AC_SUBST(LIBGNUTLS_LIBS)
2103 AC_SUBST(LIBGNUTLS_CFLAGS)
2104
2105 dnl Do not put whitespace before the #include statements below.
2106 dnl Older compilers (eg sunos4 cc) choke on it.
2107 HAVE_XAW3D=no
2108 LUCID_LIBW=
2109 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2110 if test "$with_xaw3d" != no; then
2111 AC_MSG_CHECKING(for xaw3d)
2112 AC_CACHE_VAL(emacs_cv_xaw3d,
2113 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2114 #include <X11/Intrinsic.h>
2115 #include <X11/Xaw3d/Simple.h>]],
2116 [[]])],
2117 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2118 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2119 emacs_cv_xaw3d=no)])
2120 else
2121 emacs_cv_xaw3d=no
2122 fi
2123 if test $emacs_cv_xaw3d = yes; then
2124 AC_MSG_RESULT([yes; using Lucid toolkit])
2125 USE_X_TOOLKIT=LUCID
2126 HAVE_XAW3D=yes
2127 LUCID_LIBW=-lXaw3d
2128 AC_DEFINE(HAVE_XAW3D, 1,
2129 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2130 else
2131 AC_MSG_RESULT(no)
2132 AC_MSG_CHECKING(for libXaw)
2133 AC_CACHE_VAL(emacs_cv_xaw,
2134 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2135 #include <X11/Intrinsic.h>
2136 #include <X11/Xaw/Simple.h>]],
2137 [[]])],
2138 emacs_cv_xaw=yes,
2139 emacs_cv_xaw=no)])
2140 if test $emacs_cv_xaw = yes; then
2141 AC_MSG_RESULT([yes; using Lucid toolkit])
2142 USE_X_TOOLKIT=LUCID
2143 LUCID_LIBW=-lXaw
2144 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2145 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2146 else
2147 AC_MSG_ERROR([No X toolkit could be found.
2148 If you are sure you want Emacs compiled without an X toolkit, pass
2149 --with-x-toolkit=no
2150 to configure. Otherwise, install the development libraries for the toolkit
2151 that you want to use (e.g. Gtk+) and re-run configure.])
2152 fi
2153 fi
2154 fi
2155
2156 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2157
2158 LIBXTR6=
2159 if test "${USE_X_TOOLKIT}" != "none"; then
2160 AC_MSG_CHECKING(X11 toolkit version)
2161 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2162 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2163 [[#if XtSpecificationRelease < 6
2164 fail;
2165 #endif
2166 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2167 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2168 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2169 AC_MSG_RESULT(6 or newer)
2170 AC_DEFINE(HAVE_X11XTR6, 1,
2171 [Define to 1 if you have the X11R6 or newer version of Xt.])
2172 LIBXTR6="-lSM -lICE"
2173 case "$opsys" in
2174 ## Use libw.a along with X11R6 Xt.
2175 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2176 esac
2177 else
2178 AC_MSG_RESULT(before 6)
2179 fi
2180
2181 dnl If using toolkit, check whether libXmu.a exists.
2182 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2183 OLDLIBS="$LIBS"
2184 if test x$HAVE_X11XTR6 = xyes; then
2185 LIBS="-lXt -lSM -lICE $LIBS"
2186 else
2187 LIBS="-lXt $LIBS"
2188 fi
2189 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2190 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2191 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2192 fi
2193 AC_SUBST(LIBXTR6)
2194
2195 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2196 dnl Why not just test for libxmu in the normal way?
2197 LIBXMU=-lXmu
2198 case $opsys in
2199 ## These systems don't supply Xmu.
2200 hpux* | aix4-2 )
2201 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2202 ;;
2203 esac
2204 AC_SUBST(LIBXMU)
2205
2206 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2207 if test "${HAVE_X11}" = "yes"; then
2208 if test "${USE_X_TOOLKIT}" != "none"; then
2209 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2210 fi
2211 fi
2212
2213 LIBXP=
2214 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2215 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2216 if test -d /usr/include/openmotif; then
2217 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2218 emacs_cv_openmotif=yes
2219 case "$canonical" in
2220 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2221 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2222 ;;
2223 *)
2224 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2225 esac
2226 else
2227 emacs_cv_openmotif=no
2228 fi
2229 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2230 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2231 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2232 int x = 5;
2233 #else
2234 Motif version prior to 2.1.
2235 #endif]])],
2236 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2237 if test $emacs_cv_motif_version_2_1 = yes; then
2238 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2239 if test x$emacs_cv_openmotif = xyes; then
2240 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2241 fi
2242 else
2243 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2244 # We put this in CFLAGS temporarily to precede other -I options
2245 # that might be in CFLAGS temporarily.
2246 # We put this in CPPFLAGS where it precedes the other -I options.
2247 OLD_CPPFLAGS=$CPPFLAGS
2248 OLD_CFLAGS=$CFLAGS
2249 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2250 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2251 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2252 [[int x = 5;]])],
2253 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2254 if test $emacs_cv_lesstif = yes; then
2255 # Make sure this -I option remains in CPPFLAGS after it is set
2256 # back to REAL_CPPFLAGS.
2257 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2258 # have those other -I options anyway. Ultimately, having this
2259 # directory ultimately in CPPFLAGS will be enough.
2260 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2261 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2262 else
2263 CFLAGS=$OLD_CFLAGS
2264 CPPFLAGS=$OLD_CPPFLAGS
2265 fi
2266 fi
2267 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2268 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2269 fi
2270
2271 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2272 dnl using Motif or Xaw3d is available, and unless
2273 dnl --with-toolkit-scroll-bars=no was specified.
2274
2275 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2276 [Define to 1 if we should use toolkit scroll bars.])dnl
2277 USE_TOOLKIT_SCROLL_BARS=no
2278 if test "${with_toolkit_scroll_bars}" != "no"; then
2279 if test "${USE_X_TOOLKIT}" != "none"; then
2280 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2281 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2282 HAVE_XAW3D=no
2283 USE_TOOLKIT_SCROLL_BARS=yes
2284 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2285 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2286 USE_TOOLKIT_SCROLL_BARS=yes
2287 fi
2288 elif test "${HAVE_GTK}" = "yes"; then
2289 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2290 USE_TOOLKIT_SCROLL_BARS=yes
2291 elif test "${HAVE_NS}" = "yes"; then
2292 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2293 USE_TOOLKIT_SCROLL_BARS=yes
2294 fi
2295 fi
2296
2297 dnl See if XIM is available.
2298 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2299 #include <X11/Xlib.h>
2300 #include <X11/Xresource.h>]],
2301 [[XIMProc callback;]])],
2302 [HAVE_XIM=yes
2303 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2304 HAVE_XIM=no)
2305
2306 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2307
2308 if test "${with_xim}" != "no"; then
2309 AC_DEFINE(USE_XIM, 1,
2310 [Define to 1 if we should use XIM, if it is available.])
2311 fi
2312
2313
2314 if test "${HAVE_XIM}" != "no"; then
2315 late_CFLAGS=$CFLAGS
2316 if test "$GCC" = yes; then
2317 CFLAGS="$CFLAGS --pedantic-errors"
2318 fi
2319 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2320 #include <X11/Xlib.h>
2321 #include <X11/Xresource.h>]],
2322 [[Display *display;
2323 XrmDatabase db;
2324 char *res_name;
2325 char *res_class;
2326 XIMProc callback;
2327 XPointer *client_data;
2328 #ifndef __GNUC__
2329 /* If we're not using GCC, it's probably not XFree86, and this is
2330 probably right, but we can't use something like --pedantic-errors. */
2331 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2332 char*, XIMProc, XPointer*);
2333 #endif
2334 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2335 client_data);]])],
2336 [emacs_cv_arg6_star=yes])
2337 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2338 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2339 either XPointer or XPointer*.])dnl
2340 if test "$emacs_cv_arg6_star" = yes; then
2341 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2342 else
2343 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2344 fi
2345 CFLAGS=$late_CFLAGS
2346 fi
2347
2348 ### Start of font-backend (under any platform) section.
2349 # (nothing here yet -- this is a placeholder)
2350 ### End of font-backend (under any platform) section.
2351
2352 ### Start of font-backend (under X11) section.
2353 if test "${HAVE_X11}" = "yes"; then
2354 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2355
2356 ## Use -lXft if available, unless `--with-xft=no'.
2357 HAVE_XFT=maybe
2358 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2359 with_xft="no";
2360 fi
2361 if test "x${with_xft}" != "xno"; then
2362
2363 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2364 ## Because xftfont.c uses XRenderQueryExtension, we also
2365 ## need to link to -lXrender.
2366 HAVE_XRENDER=no
2367 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2368 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2369 OLD_CPPFLAGS="$CPPFLAGS"
2370 OLD_CFLAGS="$CFLAGS"
2371 OLD_LIBS="$LIBS"
2372 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2373 CFLAGS="$CFLAGS $XFT_CFLAGS"
2374 XFT_LIBS="-lXrender $XFT_LIBS"
2375 LIBS="$XFT_LIBS $LIBS"
2376 AC_CHECK_HEADER(X11/Xft/Xft.h,
2377 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2378
2379 if test "${HAVE_XFT}" = "yes"; then
2380 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2381 AC_SUBST(XFT_LIBS)
2382 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2383 else
2384 CPPFLAGS="$OLD_CPPFLAGS"
2385 CFLAGS="$OLD_CFLAGS"
2386 LIBS="$OLD_LIBS"
2387 fi # "${HAVE_XFT}" = "yes"
2388 fi # "$HAVE_XFT" != no
2389 fi # "x${with_xft}" != "xno"
2390
2391 ## We used to allow building with FreeType and without Xft.
2392 ## However, the ftx font backend driver is not in good shape.
2393 if test "$HAVE_XFT" != "yes"; then
2394 dnl For the "Does Emacs use" message at the end.
2395 HAVE_XFT=no
2396 HAVE_FREETYPE=no
2397 else
2398 dnl Strict linkers fail with
2399 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2400 dnl if -lfreetype is not specified.
2401 dnl The following is needed to set FREETYPE_LIBS.
2402 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2403 HAVE_FREETYPE=no)
2404
2405 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2406 fi
2407
2408 HAVE_LIBOTF=no
2409 if test "${HAVE_FREETYPE}" = "yes"; then
2410 AC_DEFINE(HAVE_FREETYPE, 1,
2411 [Define to 1 if using the freetype and fontconfig libraries.])
2412 if test "${with_libotf}" != "no"; then
2413 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2414 HAVE_LIBOTF=no)
2415 if test "$HAVE_LIBOTF" = "yes"; then
2416 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2417 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2418 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2419 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2420 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2421 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2422 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2423 fi
2424 fi
2425 fi
2426 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2427 dnl Does the new font backend require it, or can it work without it?
2428 fi
2429
2430 HAVE_M17N_FLT=no
2431 if test "${HAVE_LIBOTF}" = yes; then
2432 if test "${with_m17n_flt}" != "no"; then
2433 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2434 if test "$HAVE_M17N_FLT" = "yes"; then
2435 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2436 fi
2437 fi
2438 fi
2439 else
2440 HAVE_XFT=no
2441 HAVE_FREETYPE=no
2442 HAVE_LIBOTF=no
2443 HAVE_M17N_FLT=no
2444 fi
2445
2446 ### End of font-backend (under X11) section.
2447
2448 AC_SUBST(FREETYPE_CFLAGS)
2449 AC_SUBST(FREETYPE_LIBS)
2450 AC_SUBST(FONTCONFIG_CFLAGS)
2451 AC_SUBST(FONTCONFIG_LIBS)
2452 AC_SUBST(LIBOTF_CFLAGS)
2453 AC_SUBST(LIBOTF_LIBS)
2454 AC_SUBST(M17N_FLT_CFLAGS)
2455 AC_SUBST(M17N_FLT_LIBS)
2456
2457 ### Use -lXpm if available, unless `--with-xpm=no'.
2458 HAVE_XPM=no
2459 LIBXPM=
2460 if test "${HAVE_X11}" = "yes"; then
2461 if test "${with_xpm}" != "no"; then
2462 AC_CHECK_HEADER(X11/xpm.h,
2463 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2464 if test "${HAVE_XPM}" = "yes"; then
2465 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2466 AC_EGREP_CPP(no_return_alloc_pixels,
2467 [#include "X11/xpm.h"
2468 #ifndef XpmReturnAllocPixels
2469 no_return_alloc_pixels
2470 #endif
2471 ], HAVE_XPM=no, HAVE_XPM=yes)
2472
2473 if test "${HAVE_XPM}" = "yes"; then
2474 AC_MSG_RESULT(yes)
2475 else
2476 AC_MSG_RESULT(no)
2477 fi
2478 fi
2479 fi
2480
2481 if test "${HAVE_XPM}" = "yes"; then
2482 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2483 LIBXPM=-lXpm
2484 fi
2485 fi
2486 AC_SUBST(LIBXPM)
2487
2488 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2489 HAVE_JPEG=no
2490 LIBJPEG=
2491 if test "${HAVE_X11}" = "yes"; then
2492 if test "${with_jpeg}" != "no"; then
2493 dnl Checking for jpeglib.h can lose because of a redefinition of
2494 dnl HAVE_STDLIB_H.
2495 AC_CHECK_HEADER(jerror.h,
2496 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2497 fi
2498
2499 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2500 if test "${HAVE_JPEG}" = "yes"; then
2501 AC_DEFINE(HAVE_JPEG)
2502 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2503 [#include <jpeglib.h>
2504 version=JPEG_LIB_VERSION
2505 ],
2506 [AC_DEFINE(HAVE_JPEG)],
2507 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2508 HAVE_JPEG=no])
2509 fi
2510 if test "${HAVE_JPEG}" = "yes"; then
2511 LIBJPEG=-ljpeg
2512 fi
2513 fi
2514 AC_SUBST(LIBJPEG)
2515
2516 ### Use -lpng if available, unless `--with-png=no'.
2517 HAVE_PNG=no
2518 LIBPNG=
2519 if test "${HAVE_X11}" = "yes"; then
2520 if test "${with_png}" != "no"; then
2521 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2522 # in /usr/include/libpng.
2523 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2524 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2525 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2526 fi
2527 fi
2528
2529 if test "${HAVE_PNG}" = "yes"; then
2530 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2531 LIBPNG="-lpng -lz -lm"
2532
2533 AC_CHECK_DECL(png_longjmp,
2534 [],
2535 [AC_DEFINE(PNG_DEPSTRUCT, [],
2536 [Define to empty to suppress deprecation warnings when building
2537 with --enable-gcc-warnings and with libpng versions before 1.5,
2538 which lack png_longjmp.])],
2539 [[#ifdef HAVE_LIBPNG_PNG_H
2540 # include <libpng/png.h>
2541 #else
2542 # include <png.h>
2543 #endif
2544 ]])
2545 fi
2546 fi
2547 AC_SUBST(LIBPNG)
2548
2549 ### Use -ltiff if available, unless `--with-tiff=no'.
2550 HAVE_TIFF=no
2551 LIBTIFF=
2552 if test "${HAVE_X11}" = "yes"; then
2553 if test "${with_tiff}" != "no"; then
2554 AC_CHECK_HEADER(tiffio.h,
2555 [tifflibs="-lz -lm"
2556 # At least one tiff package requires the jpeg library.
2557 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2558 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2559 fi
2560
2561 if test "${HAVE_TIFF}" = "yes"; then
2562 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2563 dnl FIXME -lz -lm, as per libpng?
2564 LIBTIFF=-ltiff
2565 fi
2566 fi
2567 AC_SUBST(LIBTIFF)
2568
2569 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2570 HAVE_GIF=no
2571 LIBGIF=
2572 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2573 AC_CHECK_HEADER(gif_lib.h,
2574 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2575 # Earlier versions can crash Emacs.
2576 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2577
2578 if test "$HAVE_GIF" = yes; then
2579 LIBGIF=-lgif
2580 elif test "$HAVE_GIF" = maybe; then
2581 # If gif_lib.h but no libgif, try libungif.
2582 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2583 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2584 fi
2585
2586 if test "${HAVE_GIF}" = "yes"; then
2587 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2588 fi
2589 fi
2590 AC_SUBST(LIBGIF)
2591
2592 dnl Check for required libraries.
2593 if test "${HAVE_X11}" = "yes"; then
2594 MISSING=""
2595 WITH_NO=""
2596 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2597 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2598 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2599 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2600 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2601 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2602 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2603 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2604 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2605 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2606
2607 if test "X${MISSING}" != X; then
2608 AC_MSG_ERROR([The following required libraries were not found:
2609 $MISSING
2610 Maybe some development libraries/packages are missing?
2611 If you don't want to link with them give
2612 $WITH_NO
2613 as options to configure])
2614 fi
2615 fi
2616
2617 ### Use -lgpm if available, unless `--with-gpm=no'.
2618 HAVE_GPM=no
2619 LIBGPM=
2620 if test "${with_gpm}" != "no"; then
2621 AC_CHECK_HEADER(gpm.h,
2622 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2623
2624 if test "${HAVE_GPM}" = "yes"; then
2625 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2626 LIBGPM=-lgpm
2627 fi
2628 fi
2629 AC_SUBST(LIBGPM)
2630
2631 dnl Check for malloc/malloc.h on darwin
2632 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2633
2634 GNUSTEP_CFLAGS=
2635 ### Use NeXTstep API to implement GUI.
2636 if test "${HAVE_NS}" = "yes"; then
2637 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2638 if test "${NS_IMPL_COCOA}" = "yes"; then
2639 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2640 fi
2641 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2642 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2643 # See also .m.o rule in Makefile.in */
2644 # FIXME: are all these flags really needed? Document here why. */
2645 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2646 ## Extra CFLAGS applied to src/*.m files.
2647 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"
2648 fi
2649 # We also have mouse menus.
2650 HAVE_MENUS=yes
2651 OTHER_FILES=ns-app
2652 fi
2653
2654
2655 ### Use session management (-lSM -lICE) if available
2656 HAVE_X_SM=no
2657 LIBXSM=
2658 if test "${HAVE_X11}" = "yes"; then
2659 AC_CHECK_HEADER(X11/SM/SMlib.h,
2660 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2661
2662 if test "${HAVE_X_SM}" = "yes"; then
2663 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2664 LIBXSM="-lSM -lICE"
2665 case "$LIBS" in
2666 *-lSM*) ;;
2667 *) LIBS="$LIBXSM $LIBS" ;;
2668 esac
2669 fi
2670 fi
2671 AC_SUBST(LIBXSM)
2672
2673 ### Use libxml (-lxml2) if available
2674 HAVE_LIBXML2=no
2675 if test "${with_xml2}" != "no"; then
2676 ### I'm not sure what the version number should be, so I just guessed.
2677 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2678 if test "${HAVE_LIBXML2}" = "yes"; then
2679 LIBS="$LIBXML2_LIBS $LIBS"
2680 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2681 if test "${HAVE_LIBXML2}" = "yes"; then
2682 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2683 else
2684 LIBXML2_LIBS=""
2685 LIBXML2_CFLAGS=""
2686 fi
2687 fi
2688 fi
2689 AC_SUBST(LIBXML2_LIBS)
2690 AC_SUBST(LIBXML2_CFLAGS)
2691
2692 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2693 AC_CACHE_CHECK(whether netdb declares h_errno,
2694 emacs_cv_netdb_declares_h_errno,
2695 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2696 [[return h_errno;]])],
2697 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2698 if test $emacs_cv_netdb_declares_h_errno = yes; then
2699 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2700 fi
2701
2702 # fmod, logb, and frexp are found in -lm on most systems.
2703 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2704 AC_CHECK_LIB(m, sqrt)
2705
2706 # Check for mail-locking functions in a "mail" library. Probably this should
2707 # have the same check as for liblockfile below.
2708 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2709 if test $have_mail = yes; then
2710 LIBS_MAIL=-lmail
2711 LIBS="$LIBS_MAIL $LIBS"
2712 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2713 else
2714 LIBS_MAIL=
2715 fi
2716 dnl Debian, at least:
2717 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2718 if test $have_lockfile = yes; then
2719 LIBS_MAIL=-llockfile
2720 LIBS="$LIBS_MAIL $LIBS"
2721 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2722 else
2723 # If we have the shared liblockfile, assume we must use it for mail
2724 # locking (e.g. Debian). If we couldn't link against liblockfile
2725 # (no liblockfile.a installed), ensure that we don't need to.
2726 dnl This works for files generally, not just executables.
2727 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2728 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2729 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2730 if test $ac_cv_prog_liblockfile = yes; then
2731 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2732 This probably means that movemail could lose mail.
2733 There may be a `development' package to install containing liblockfile.])
2734 fi
2735 fi
2736 AC_CHECK_HEADERS_ONCE(maillock.h)
2737 AC_SUBST(LIBS_MAIL)
2738
2739 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2740 ## interlock access to the mail spool. The alternative is a lock file named
2741 ## /usr/spool/mail/$USER.lock.
2742 mail_lock=no
2743 case "$opsys" in
2744 aix4-2) mail_lock="lockf" ;;
2745
2746 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2747
2748 ## On GNU/Linux systems, both methods are used by various mail programs.
2749 ## I assume most people are using newer mailers that have heard of flock.
2750 ## Change this if you need to.
2751 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2752 ## configure gets the right answers, and that means *NOT* using flock.
2753 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2754 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2755 ## Debian maintainer hasn't provided a clean fix for Emacs.
2756 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2757 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2758 ## correct logic. -- fx
2759 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2760 ## liblockfile is a Free Software replacement for libmail, used on
2761 ## Debian systems and elsewhere. -rfr.
2762 gnu-*)
2763 mail_lock="flock"
2764 if test $have_mail = yes || test $have_lockfile = yes; then
2765 test $ac_cv_header_maillock_h = yes && mail_lock=no
2766 fi
2767 ;;
2768 esac
2769
2770 BLESSMAIL_TARGET=
2771 case "$mail_lock" in
2772 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2773
2774 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2775
2776 *) BLESSMAIL_TARGET="need-blessmail" ;;
2777 esac
2778 AC_SUBST(BLESSMAIL_TARGET)
2779
2780
2781 AC_CHECK_FUNCS(gethostname \
2782 closedir getrusage get_current_dir_name \
2783 lrand48 logb frexp fmod cbrt setsid \
2784 fpathconf select euidaccess getpagesize setlocale \
2785 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2786 __fpending strsignal setitimer \
2787 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2788 gai_strerror mkstemp getline getdelim fsync sync \
2789 difftime posix_memalign \
2790 getpwent endpwent getgrent endgrent \
2791 touchlock \
2792 cfmakeraw cfsetspeed copysign __executable_start)
2793
2794 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2795 if test $opsys = unixware; then
2796 dnl In case some other test ends up checking for getwd.
2797 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2798 else
2799 AC_CHECK_FUNCS(getwd)
2800 fi
2801
2802 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2803 ## has a broken `rint' in some library versions including math library
2804 ## version number A.09.05.
2805 ## You can fix the math library by installing patch number PHSS_4630.
2806 ## But we can fix it more reliably for Emacs by just not using rint.
2807 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2808 case $opsys in
2809 hpux*) : ;;
2810 *) AC_CHECK_FUNCS(random rint) ;;
2811 esac
2812
2813 dnl Cannot use AC_CHECK_FUNCS
2814 AC_CACHE_CHECK([for __builtin_unwind_init],
2815 emacs_cv_func___builtin_unwind_init,
2816 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2817 emacs_cv_func___builtin_unwind_init=yes,
2818 emacs_cv_func___builtin_unwind_init=no)])
2819 if test $emacs_cv_func___builtin_unwind_init = yes; then
2820 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2821 [Define to 1 if you have the `__builtin_unwind_init' function.])
2822 fi
2823
2824 AC_CHECK_HEADERS_ONCE(sys/un.h)
2825
2826 AC_FUNC_FSEEKO
2827
2828 AC_FUNC_GETPGRP
2829
2830 # UNIX98 PTYs.
2831 AC_CHECK_FUNCS(grantpt)
2832
2833 # PTY-related GNU extensions.
2834 AC_CHECK_FUNCS(getpt posix_openpt)
2835
2836 # Check this now, so that we will NOT find the above functions in ncurses.
2837 # That is because we have not set up to link ncurses in lib-src.
2838 # It's better to believe a function is not available
2839 # than to expect to find it in ncurses.
2840 # Also we need tputs and friends to be able to build at all.
2841 AC_MSG_CHECKING([for library containing tputs])
2842 # Run a test program that contains a call to tputs, a call that is
2843 # never executed. This tests whether a pre-'main' dynamic linker
2844 # works with the library. It's too much trouble to actually call
2845 # tputs in the test program, due to portability hassles. When
2846 # cross-compiling, assume the test program will run if it links.
2847 AC_DEFUN([tputs_link_source], [
2848 AC_LANG_SOURCE(
2849 [[extern void tputs (const char *, int, int (*)(int));
2850 int main (int argc, char **argv)
2851 {
2852 if (argc == 10000)
2853 tputs (argv[0], 0, 0);
2854 return 0;
2855 }]])
2856 ])
2857 # Maybe curses should be tried earlier?
2858 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2859 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2860 OLIBS=$LIBS
2861 if test -z "$tputs_library"; then
2862 LIBS_TERMCAP=
2863 msg='none required'
2864 else
2865 LIBS_TERMCAP=-l$tputs_library
2866 msg=$LIBS_TERMCAP
2867 LIBS="$LIBS_TERMCAP $LIBS"
2868 fi
2869 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2870 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2871 LIBS=$OLIBS
2872 if test "X$msg" != Xno; then
2873 break
2874 fi
2875 done
2876 AC_MSG_RESULT([$msg])
2877 if test "X$msg" = Xno; then
2878 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2879 The following libraries were tried (in order):
2880 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2881 Please try installing whichever of these libraries is most appropriate
2882 for your system, together with its header files.
2883 For example, a libncurses-dev(el) or similar package.])
2884 fi
2885
2886 ## Use termcap instead of terminfo?
2887 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2888 TERMINFO=yes
2889 ## FIXME? In the cases below where we unconditionally set
2890 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2891 ## if that was found above to have tputs.
2892 ## Should we use the gnu* logic everywhere?
2893 case "$opsys" in
2894 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2895 ## The ncurses library has been moved out of the System framework in
2896 ## Mac OS X 10.2. So if configure detects it, set the command-line
2897 ## option to use it.
2898 darwin) LIBS_TERMCAP="-lncurses" ;;
2899
2900 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2901
2902 freebsd)
2903 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2904 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2905 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2906 [[#if __FreeBSD_version < 400000
2907 fail;
2908 #endif
2909 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2910
2911 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2912
2913 if test $emacs_cv_freebsd_terminfo = yes; then
2914 LIBS_TERMCAP="-lncurses"
2915 else
2916 TERMINFO=no
2917 LIBS_TERMCAP="-ltermcap"
2918 fi
2919 ;;
2920
2921 netbsd)
2922 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2923 TERMINFO=no
2924 LIBS_TERMCAP="-ltermcap"
2925 fi
2926 ;;
2927
2928 openbsd) LIBS_TERMCAP="-lncurses" ;;
2929
2930 ## hpux: Make sure we get select from libc rather than from libcurses
2931 ## because libcurses on HPUX 10.10 has a broken version of select.
2932 ## We used to use -lc -lcurses, but this may be cleaner.
2933 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2934 # set that way, now it uses the default). Isn't this a contradiction?
2935 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2936
2937 esac
2938
2939 TERMCAP_OBJ=tparam.o
2940 if test $TERMINFO = yes; then
2941 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2942 TERMCAP_OBJ=terminfo.o
2943 fi
2944 AC_SUBST(LIBS_TERMCAP)
2945 AC_SUBST(TERMCAP_OBJ)
2946
2947
2948 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2949 # On Darwin, res_init appears not to be useful: see bug#562 and
2950 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2951 resolv=no
2952
2953 if test $opsys != darwin; then
2954
2955 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2956 #include <arpa/nameser.h>
2957 #include <resolv.h>]],
2958 [[return res_init();]])],
2959 have_res_init=yes, have_res_init=no)
2960 if test "$have_res_init" = no; then
2961 OLIBS="$LIBS"
2962 LIBS="$LIBS -lresolv"
2963 AC_MSG_CHECKING(for res_init with -lresolv)
2964 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2965 #include <arpa/nameser.h>
2966 #include <resolv.h>]],
2967 [[return res_init();]])],
2968 have_res_init=yes, have_res_init=no)
2969 AC_MSG_RESULT($have_res_init)
2970 if test "$have_res_init" = yes ; then
2971 resolv=yes
2972 fi
2973 LIBS="$OLIBS"
2974 fi
2975
2976 if test "$have_res_init" = yes; then
2977 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2978 fi
2979 fi dnl !darwin
2980
2981 # Do we need the Hesiod library to provide the support routines?
2982 dnl FIXME? Should we be skipping this on Darwin too?
2983 LIBHESIOD=
2984 if test "$with_hesiod" != no ; then
2985 # Don't set $LIBS here -- see comments above. FIXME which comments?
2986 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2987 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2988 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2989 if test "$resolv" = yes ; then
2990 RESOLVLIB=-lresolv
2991 else
2992 RESOLVLIB=
2993 fi
2994 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2995 hesiod=yes, :, $RESOLVLIB)])
2996
2997 if test x"$hesiod" = xyes; then
2998 AC_DEFINE(HAVE_LIBHESIOD, 1,
2999 [Define to 1 if you have the hesiod library (-lhesiod).])
3000 LIBHESIOD=-lhesiod
3001 fi
3002 fi
3003 AC_SUBST(LIBHESIOD)
3004
3005 # Do we need libresolv (due to res_init or Hesiod)?
3006 if test "$resolv" = yes && test $opsys != darwin; then
3007 AC_DEFINE(HAVE_LIBRESOLV, 1,
3008 [Define to 1 if you have the resolv library (-lresolv).])
3009 LIBRESOLV=-lresolv
3010 else
3011 LIBRESOLV=
3012 fi
3013 AC_SUBST(LIBRESOLV)
3014
3015 # These tell us which Kerberos-related libraries to use.
3016 COM_ERRLIB=
3017 CRYPTOLIB=
3018 KRB5LIB=
3019 DESLIB=
3020 KRB4LIB=
3021
3022 if test "${with_kerberos}" != no; then
3023 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3024 if test $have_com_err = yes; then
3025 COM_ERRLIB=-lcom_err
3026 LIBS="$COM_ERRLIB $LIBS"
3027 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3028 fi
3029 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3030 if test $have_crypto = yes; then
3031 CRYPTOLIB=-lcrypto
3032 LIBS="$CRYPTOLIB $LIBS"
3033 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3034 fi
3035 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3036 if test $have_k5crypto = yes; then
3037 CRYPTOLIB=-lk5crypto
3038 LIBS="$CRYPTOLIB $LIBS"
3039 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3040 fi
3041 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3042 if test $have_krb5=yes; then
3043 KRB5LIB=-lkrb5
3044 LIBS="$KRB5LIB $LIBS"
3045 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3046 fi
3047 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3048 if test "${with_kerberos5}" = no; then
3049 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3050 if test $have_des425 = yes; then
3051 DESLIB=-ldes425
3052 LIBS="$DESLIB $LIBS"
3053 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3054 else
3055 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3056 if test $have_des = yes; then
3057 DESLIB=-ldes
3058 LIBS="$DESLIB $LIBS"
3059 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3060 fi
3061 fi
3062 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3063 if test $have_krb4 = yes; then
3064 KRB4LIB=-lkrb4
3065 LIBS="$KRB4LIB $LIBS"
3066 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3067 else
3068 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3069 if test $have_krb = yes; then
3070 KRB4LIB=-lkrb
3071 LIBS="$KRB4LIB $LIBS"
3072 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3073 fi
3074 fi
3075 fi
3076
3077 if test "${with_kerberos5}" != no; then
3078 AC_CHECK_HEADERS(krb5.h,
3079 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3080 [#include <krb5.h>])])
3081 else
3082 AC_CHECK_HEADERS(des.h,,
3083 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3084 [AC_CHECK_HEADERS(kerberos/des.h)])])
3085 AC_CHECK_HEADERS(krb.h,,
3086 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3087 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3088 fi
3089 AC_CHECK_HEADERS(com_err.h)
3090 fi
3091
3092 AC_SUBST(COM_ERRLIB)
3093 AC_SUBST(CRYPTOLIB)
3094 AC_SUBST(KRB5LIB)
3095 AC_SUBST(DESLIB)
3096 AC_SUBST(KRB4LIB)
3097
3098 AC_CHECK_FUNCS_ONCE(tzset)
3099 AC_MSG_CHECKING(whether localtime caches TZ)
3100 AC_CACHE_VAL(emacs_cv_localtime_cache,
3101 [if test x$ac_cv_func_tzset = xyes; then
3102 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3103 char TZ_GMT0[] = "TZ=GMT0";
3104 char TZ_PST8[] = "TZ=PST8";
3105 main()
3106 {
3107 time_t now = time ((time_t *) 0);
3108 int hour_GMT0, hour_unset;
3109 if (putenv (TZ_GMT0) != 0)
3110 exit (1);
3111 hour_GMT0 = localtime (&now)->tm_hour;
3112 unsetenv("TZ");
3113 hour_unset = localtime (&now)->tm_hour;
3114 if (putenv (TZ_PST8) != 0)
3115 exit (1);
3116 if (localtime (&now)->tm_hour == hour_GMT0)
3117 exit (1);
3118 unsetenv("TZ");
3119 if (localtime (&now)->tm_hour != hour_unset)
3120 exit (1);
3121 exit (0);
3122 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3123 [# If we have tzset, assume the worst when cross-compiling.
3124 emacs_cv_localtime_cache=yes])
3125 else
3126 # If we lack tzset, report that localtime does not cache TZ,
3127 # since we can't invalidate the cache if we don't have tzset.
3128 emacs_cv_localtime_cache=no
3129 fi])dnl
3130 AC_MSG_RESULT($emacs_cv_localtime_cache)
3131 if test $emacs_cv_localtime_cache = yes; then
3132 AC_DEFINE(LOCALTIME_CACHE, 1,
3133 [Define to 1 if localtime caches TZ.])
3134 fi
3135
3136 ok_so_far=yes
3137 AC_CHECK_FUNC(socket, , ok_so_far=no)
3138 if test $ok_so_far = yes; then
3139 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3140 fi
3141 if test $ok_so_far = yes; then
3142 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3143 fi
3144 if test $ok_so_far = yes; then
3145 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3146 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3147 [Define to 1 if you have inet sockets.])
3148 fi
3149
3150 if test -f /usr/lpp/X11/bin/smt.exp; then
3151 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3152 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3153 fi
3154
3155 AC_MSG_CHECKING(whether system supports dynamic ptys)
3156 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3157 AC_MSG_RESULT(yes)
3158 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3159 else
3160 AC_MSG_RESULT(no)
3161 fi
3162
3163 AC_FUNC_FORK
3164
3165 AC_CHECK_FUNCS(snprintf)
3166
3167 dnl Adapted from Haible's version.
3168 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3169 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3170 [[char* cs = nl_langinfo(CODESET);]])],
3171 emacs_cv_langinfo_codeset=yes,
3172 emacs_cv_langinfo_codeset=no)
3173 ])
3174 if test $emacs_cv_langinfo_codeset = yes; then
3175 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3176 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3177 fi
3178
3179 AC_TYPE_MBSTATE_T
3180
3181 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3182 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3183 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3184 if test "$emacs_cv_c_restrict_arr" = yes; then
3185 AC_DEFINE(__restrict_arr, __restrict,
3186 [Define to compiler's equivalent of C99 restrict keyword in array
3187 declarations. Define as empty for no equivalent.])
3188 fi
3189
3190 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3191 dnl how the tty code is related to POSIX and/or other versions of termios.
3192 dnl The following looks like a useful start.
3193 dnl
3194 dnl AC_SYS_POSIX_TERMIOS
3195 dnl if test $ac_cv_sys_posix_termios = yes; then
3196 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3197 dnl and macros for terminal control.])
3198 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3199 dnl fi
3200
3201 dnl Turned on June 1996 supposing nobody will mind it.
3202 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3203 in the full name stands for the login id.])
3204
3205 dnl Every platform that uses configure (ie every non-MS platform)
3206 dnl supports this. There is a create-lockfiles option you can
3207 dnl customize if you do not want the lock files to be written.
3208 dnl So it is not clear that this #define still needs to exist.
3209 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3210 so that Emacs can tell instantly when you try to modify a file that
3211 someone else has modified in his/her Emacs.])
3212
3213 AH_TEMPLATE(FLOAT_CHECK_DOMAIN, [Define if the float library doesn't
3214 handle errors by either setting errno, or signaling SIGFPE/SIGILL.])
3215
3216 AH_TEMPLATE(HAVE_INVERSE_HYPERBOLIC, [Define if you have the functions
3217 acosh, asinh, and atanh.])
3218
3219 dnl Everybody supports this, except MS.
3220 dnl Seems like the kind of thing we should be testing for, though.
3221 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3222 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3223
3224 dnl Everybody supports this, except MS-DOS.
3225 dnl Seems like the kind of thing we should be testing for, though.
3226 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3227 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3228 4.2-compatible sockets.])
3229
3230 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3231
3232 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3233 a null file, or a data sink.])
3234
3235 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3236
3237 dnl Everybody supports this, except MS-DOS.
3238 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3239
3240 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3241
3242
3243 AC_DEFINE(DIRECTORY_SEP, ['/'],
3244 [Character that separates directories in a file name.])
3245
3246 dnl Only used on MS platforms.
3247 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3248
3249 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3250 [Returns true if character is a device separator.])
3251
3252 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3253 [Returns true if character is a directory separator.])
3254
3255 dnl On MS, this also accepts IS_DEVICE_SEP.
3256 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3257 [Returns true if character is any form of separator.])
3258
3259
3260 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3261
3262 case $opsys in
3263 aix4-2)
3264 dnl Unfortunately without libXmu we cannot support EditRes.
3265 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3266 AC_DEFINE(NO_EDITRES, 1)
3267 fi
3268 ;;
3269
3270 hpux*)
3271 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3272 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3273 AC_DEFINE(NO_EDITRES, 1)
3274 ;;
3275 esac
3276
3277
3278 case $opsys in
3279 darwin | gnu | hpux* | *bsd )
3280 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3281 ;;
3282
3283 irix6-5 | sol2* | unixware )
3284 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3285 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3286 dnl need the constant to dimension an array. So wire in the appropriate
3287 dnl value here.
3288 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3289 ;;
3290 esac
3291
3292
3293 case $opsys in
3294 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3295 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3296 hpux* | irix6-5 | openbsd | sol2* | unixware )
3297 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3298 ;;
3299
3300 aix4-2)
3301 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3302 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3303 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3304 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3305 dnl which causes compilation error at init_signals in sysdep.c.
3306 dnl So, we define these macros so that syssignal.h detects them
3307 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3308 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3309 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3310 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3311
3312 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3313 dnl the way this system works, libc functions that return malloced
3314 dnl memory use the libc malloc implementation. Calling xfree or
3315 dnl xrealloc on the results of such functions results in a crash.
3316 dnl
3317 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3318 dnl but that does not currently work on this system.
3319 dnl
3320 dnl It is possible to completely override the malloc implementation on
3321 dnl AIX, but that involves putting the malloc functions in a shared
3322 dnl library and setting the MALLOCTYPE environment variable to point to
3323 dnl that shared library.
3324 dnl
3325 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3326 dnl to avoid a crash just use the Emacs implementation for that function.
3327 dnl
3328 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3329 dnl of this file, so that we do not check for get_current_dir_name
3330 dnl on AIX. But that might be fragile if something else ends
3331 dnl up testing for get_current_dir_name as a dependency.
3332 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3333 get_current_dir_name should not be used.])
3334 ;;
3335
3336 freebsd)
3337 dnl Circumvent a bug in FreeBSD. In the following sequence of
3338 dnl writes/reads on a PTY, read(2) returns bogus data:
3339 dnl
3340 dnl write(2) 1022 bytes
3341 dnl write(2) 954 bytes, get EAGAIN
3342 dnl read(2) 1024 bytes in process_read_output
3343 dnl read(2) 11 bytes in process_read_output
3344 dnl
3345 dnl That is, read(2) returns more bytes than have ever been written
3346 dnl successfully. The 1033 bytes read are the 1022 bytes written
3347 dnl successfully after processing (for example with CRs added if the
3348 dnl terminal is set up that way which it is here). The same bytes will
3349 dnl be seen again in a later read(2), without the CRs.
3350 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3351 work around an issue when reading from a PTY.])
3352 ;;
3353
3354 dnl Define the following so emacs symbols will not conflict with those
3355 dnl in the System framework. Otherwise -prebind will not work.
3356 darwin)
3357 AC_DEFINE(NO_ABORT, 1, [Do not define abort in emacs.c.])
3358 ;;
3359 esac
3360
3361 case $opsys in
3362 gnu-* | sol2-10 )
3363 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3364 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3365 ;;
3366 esac
3367
3368 case $opsys in
3369 darwin | freebsd | netbsd | openbsd )
3370 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3371 close a pty to make it a controlling terminal (it is already a
3372 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3373 ;;
3374 esac
3375
3376 dnl FIXME Surely we can test for this rather than hard-code it.
3377 case $opsys in
3378 netbsd | openbsd) sound_device="/dev/audio" ;;
3379 *) sound_device="/dev/dsp" ;;
3380 esac
3381
3382 dnl Used in sound.c
3383 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3384 [Name of the default sound device.])
3385
3386
3387 dnl Emacs can read input using SIGIO and buffering characters itself,
3388 dnl or using CBREAK mode and making C-g cause SIGINT.
3389 dnl The choice is controlled by the variable interrupt_input.
3390 dnl
3391 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3392 dnl
3393 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3394 dnl to indicate whether or not signal-driven I/O is possible. It uses
3395 dnl INTERRUPT_INPUT to decide whether to use it by default.
3396 dnl
3397 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3398 dnl CBREAK mode has two disadvantages
3399 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3400 dnl I hear that in system V this problem does not exist.
3401 dnl 2) Control-G causes output to be discarded.
3402 dnl I do not know whether this can be fixed in system V.
3403 dnl
3404 dnl Another method of doing input is planned but not implemented.
3405 dnl It would have Emacs fork off a separate process
3406 dnl to read the input and send it to the true Emacs process
3407 dnl through a pipe.
3408 case $opsys in
3409 darwin | gnu-linux | gnu-kfreebsd )
3410 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3411 ;;
3412 esac
3413
3414
3415 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3416 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3417 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3418 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3419 dnl taking float or double parameters.
3420 case $opsys in
3421 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3422 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3423 file defines `NeedWidePrototypes' as `NO'.])
3424 ;;
3425 esac
3426
3427
3428 dnl Used in process.c, this must be a loop, even if it only runs once.
3429 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3430 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3431 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3432 dnl trying suffixes 0-16.
3433 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3434 first PTY, if PTYs are supported.])
3435 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3436 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3437 end of a PTY, if non-standard.])
3438 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3439 end of a PTY, if non-standard.])
3440
3441 case $opsys in
3442 aix4-2 )
3443 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3444 dnl You allocate a pty by opening /dev/ptc to get the master side.
3445 dnl To get the name of the slave side, you just ttyname() the master side.
3446 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3447 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3448 ;;
3449
3450 cygwin )
3451 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3452 dnl multi-line AC_DEFINEs are hard. :(
3453 AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)])
3454 AC_DEFINE(PTY_NAME_SPRINTF, [])
3455 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3456 ;;
3457
3458 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3459 darwin )
3460 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3461 dnl Not used, because PTY_ITERATION is defined.
3462 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3463 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3464 dnl But we don't have to block SIGCHLD because it is blocked in the
3465 dnl implementation of grantpt.
3466 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3467 AC_DEFINE(PTY_NAME_SPRINTF, [])
3468 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3469 ;;
3470
3471 gnu | openbsd )
3472 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3473 ;;
3474
3475 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3476 dnl if HAVE_GRANTPT
3477 if test "x$ac_cv_func_grantpt" = xyes; then
3478 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3479 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3480 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3481 dnl to prevent sigchld_handler from intercepting the child's death.
3482 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }])
3483 dnl if HAVE_POSIX_OPENPT
3484 if test "x$ac_cv_func_posix_openpt" = xyes; then
3485 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3486 AC_DEFINE(PTY_NAME_SPRINTF, [])
3487 dnl if HAVE_GETPT
3488 elif test "x$ac_cv_func_getpt" = xyes; then
3489 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3490 AC_DEFINE(PTY_NAME_SPRINTF, [])
3491 else
3492 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3493 fi
3494 else
3495 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3496 fi
3497 ;;
3498
3499 hpux*)
3500 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3501 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3502 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3503 ;;
3504
3505 irix6-5 )
3506 dnl It looks like this cannot be right, because it is not a loop.
3507 dnl However, process.c actually does this:
3508 dnl # ifndef __sgi
3509 dnl continue;
3510 dnl # else
3511 dnl return -1;
3512 dnl # endif
3513 dnl which presumably makes it OK, since irix == sgi (?).
3514 dnl FIXME it seems like this special treatment is unnecessary?
3515 dnl Why can't irix use a single-trip loop like eg cygwin?
3516 AC_DEFINE(PTY_ITERATION, [])
3517 dnl Not used, because PTY_ITERATION is defined.
3518 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3519 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(SIGCLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCLD, &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); }])
3520 dnl No need to get the pty name at all.
3521 AC_DEFINE(PTY_NAME_SPRINTF, [])
3522 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3523 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3524 ;;
3525
3526 sol2* )
3527 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3528 dnl which appear to be BSD4.1 specific. It may also be appropriate
3529 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3530 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3531 dnl from intercepting that death. If any child but grantpt's should die
3532 dnl within, it should be caught after sigrelse(2).
3533 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3534 ;;
3535
3536 unixware )
3537 dnl Comments are as per sol2*.
3538 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); 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); }])
3539 ;;
3540 esac
3541
3542
3543 case $opsys in
3544 sol2* | unixware )
3545 dnl This change means that we don't loop through allocate_pty too
3546 dnl many times in the (rare) event of a failure.
3547 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3548 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3549 dnl Push various streams modules onto a PTY channel. Used in process.c.
3550 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.])
3551 ;;
3552 esac
3553
3554
3555 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3556 "typing" a signal character on the pty.])
3557
3558 case $opsys in
3559 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3560 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3561 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3562 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3563 ;;
3564
3565 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3566 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3567 gnu-linux | gnu-kfreebsd )
3568
3569 AC_MSG_CHECKING([for signals via characters])
3570 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3571 #include <linux/version.h>
3572 #if LINUX_VERSION_CODE < 0x20400
3573 # error "Linux version too old"
3574 #endif
3575 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3576
3577 AC_MSG_RESULT([$emacs_signals_via_chars])
3578 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3579 ;;
3580 esac
3581
3582
3583 dnl Used in dispnew.c
3584 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3585 buffer of a stdio stream.])
3586
3587 AC_MSG_CHECKING([whether we are using the GNU C library])
3588 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3589 #include <features.h>
3590 #ifndef __GNU_LIBRARY__
3591 # error "this is not the GNU C library"
3592 #endif
3593 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3594 AC_MSG_RESULT([$emacs_glibc])
3595
3596 if test $emacs_glibc = yes; then
3597
3598 emacs_pending_output=unknown
3599
3600 case $opsys in
3601 gnu | gnu-linux | gnu-kfreebsd )
3602 AC_MSG_CHECKING([for style of pending output formalism])
3603 dnl In autoconf 2.67 and later, we could use a single test
3604 dnl since the preprocessed output is accessible in "conftest.i".
3605 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3606 #include <stdio.h>
3607 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3608 # error "stdio definitions not found"
3609 #endif
3610 ]], [[]])], emacs_pending_output=new, [])
3611
3612 if test $emacs_pending_output = unknown; then
3613 case $opsys in
3614 gnu-linux | gnu-kfreebsd)
3615 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3616 #include <stdio.h>
3617 #ifndef __UCLIBC__
3618 # error "not using uclibc"
3619 #endif
3620 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3621 ;;
3622 esac
3623 fi
3624
3625 AC_MSG_RESULT([$emacs_pending_output])
3626
3627 case $emacs_pending_output in
3628 new)
3629 dnl New C libio names.
3630 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3631 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3632 ;;
3633 uclibc)
3634 dnl Using the uClibc library.
3635 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3636 [((FILE)->__bufpos - (FILE)->__bufstart)])
3637 ;;
3638 old)
3639 dnl Old C++ iostream names.
3640 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3641 [((FILE)->_pptr - (FILE)->_pbase)])
3642 ;;
3643 esac
3644 ;;
3645 esac dnl opsys
3646
3647 if test $emacs_pending_output = unknown; then
3648 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3649 fi
3650
3651 else dnl !emacs_glibc
3652
3653 case $opsys in
3654 cygwin | darwin | freebsd | netbsd | openbsd )
3655 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3656 ;;
3657
3658 unixware)
3659 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3660 ;;
3661
3662 *)
3663 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3664 if test x$ac_cv_header_stdio_ext_h = xyes && \
3665 test x$ac_cv_func___fpending = xyes; then
3666 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3667 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3668 [Define if dispnew.c should include stdio_ext.h.])
3669 else
3670 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3671 fi
3672 ;;
3673 esac
3674 fi dnl emacs_glibc
3675
3676
3677 dnl Used in vm-limit.c
3678 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3679 dnl Used in lisp.h, emacs.c, mem-limits.h
3680 dnl NEWS.18 describes this as "a number which contains
3681 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3682 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3683 stored in a Lisp_Object.])
3684 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3685
3686 case $opsys in
3687 gnu)
3688 dnl libc defines data_start.
3689 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3690 ;;
3691
3692 hpux*)
3693 dnl The data segment on this machine always starts at address 0x40000000.
3694 AC_DEFINE(DATA_START, [0x40000000])
3695 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3696 ;;
3697 irix6-5)
3698 AC_DEFINE(DATA_START, [0x10000000])
3699 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3700 ;;
3701 esac
3702
3703
3704 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3705 AH_TEMPLATE(TAB3, [Undocumented.])
3706
3707 case $opsys in
3708 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3709
3710 gnu | freebsd | netbsd | openbsd )
3711 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3712 AC_DEFINE(TAB3, OXTABS)
3713 ;;
3714
3715 gnu-linux | gnu-kfreebsd )
3716 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3717 dnl library, we cannot get the maximum address for brk.
3718 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3719 #ifndef __i386__
3720 # error "not i386"
3721 #endif
3722 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3723
3724 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3725 #ifndef __ia64__
3726 # error "not ia64"
3727 #endif
3728 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3729 [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)],
3730 [Mark a secondary stack, like the register stack on the ia64.]), [])
3731 ;;
3732
3733 hpux*)
3734 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3735 run_time_remap; for HPUX.])
3736 ;;
3737
3738 irix6-5)
3739 dnl Ulimit(UL_GMEMLIM) is busted...
3740 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3741 ;;
3742 esac
3743
3744
3745 dnl These won't be used automatically yet. We also need to know, at least,
3746 dnl that the stack is continuous.
3747 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3748 registers relevant for conservative garbage collection in the jmp_buf.])
3749
3750 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3751 conservative garbage collection is not known to work.])
3752
3753
3754 case $opsys in
3755 aix4-2 | hpux* | unixware)
3756 dnl Conservative garbage collection has not been tested, so for now
3757 dnl play it safe and stick with the old-fashioned way of marking.
3758 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3759 ;;
3760
3761 dnl Not all the architectures are tested, but there are Debian packages
3762 dnl for SCM and/or Guile on them, so the technique must work. See also
3763 dnl comments in alloc.c concerning setjmp and gcc.
3764 dnl Fixme: it's probably safe to just use the GCC conditional below.
3765 gnu-linux | gnu-kfreebsd )
3766 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3767 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3768 || defined __alpha__ || defined __mips__ || defined __s390__ \
3769 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3770 || defined __ia64__ || defined __sh__
3771 /* ok */
3772 #else
3773 # error "setjmp not known to work on this arch"
3774 #endif
3775 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3776 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3777 ;;
3778 esac
3779
3780
3781 if test x$GCC = xyes; then
3782 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3783 AC_DEFINE(GC_SETJMP_WORKS, 1)
3784 else
3785 case $opsys in
3786 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3787 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3788 AC_DEFINE(GC_SETJMP_WORKS, 1)
3789 ;;
3790 esac
3791 fi dnl GCC?
3792
3793
3794 case $opsys in
3795 sol2* | unixware )
3796 dnl setjmp and longjmp can safely replace _setjmp and _longjmp,
3797 dnl but they will run more slowly.
3798 AC_DEFINE(_setjmp, setjmp, [Some platforms redefine this.])
3799 AC_DEFINE(_longjmp, longjmp, [Some platforms redefine this.])
3800 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3801 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3802 dnl and this is all we need.
3803 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3804 ;;
3805 esac
3806
3807
3808 case $opsys in
3809 hpux* | sol2* )
3810 dnl Used in xfaces.c.
3811 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3812 some systems, where it requires time.h.])
3813 ;;
3814
3815 netbsd | openbsd )
3816 dnl Greg A. Woods <woods@weird.com> says we must include signal.h
3817 dnl before syssignal.h is included, to work around interface conflicts
3818 dnl that are handled with CPP __RENAME() macro in signal.h.
3819 AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
3820 ;;
3821 esac
3822
3823
3824 dnl Define symbols to identify the version of Unix this is.
3825 dnl Define all the symbols that apply correctly.
3826 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3827 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3828 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3829 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3830 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3831 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3832 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3833
3834 case $opsys in
3835 aix4-2)
3836 AC_DEFINE(USG, [])
3837 AC_DEFINE(USG5, [])
3838 dnl This symbol should be defined on AIX Version 3 ???????
3839 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3840 #ifndef _AIX
3841 # error "_AIX not defined"
3842 #endif
3843 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3844 ;;
3845
3846 cygwin)
3847 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3848 ;;
3849
3850 darwin)
3851 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3852 AC_DEFINE(BSD4_2, [])
3853 AC_DEFINE(BSD_SYSTEM, [])
3854 dnl More specific than the above two. We cannot use __APPLE__ as this
3855 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3856 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3857 dnl distinguish OS X from pure Darwin.
3858 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3859 ;;
3860
3861 freebsd)
3862 AC_DEFINE(BSD4_2, [])
3863 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3864 dnl Would not be needed with autoconf >= 2.67, where the
3865 dnl preprocessed output is accessible in "conftest.i".
3866 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3867 ;;
3868
3869 gnu | netbsd | openbsd )
3870 AC_DEFINE(BSD4_2, [])
3871 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3872 #ifndef BSD_SYSTEM
3873 # error "BSD_SYSTEM not defined"
3874 #endif
3875 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3876 ;;
3877
3878 gnu-linux | gnu-kfreebsd )
3879 AC_DEFINE(USG, [])
3880 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3881 ;;
3882
3883 hpux*)
3884 AC_DEFINE(USG, [])
3885 AC_DEFINE(USG5, [])
3886 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3887 ;;
3888
3889 irix6-5)
3890 AC_DEFINE(USG, [])
3891 AC_DEFINE(USG5, [])
3892 AC_DEFINE(USG5_4, [])
3893 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3894 ;;
3895
3896 sol2*)
3897 AC_DEFINE(USG, [])
3898 AC_DEFINE(USG5, [])
3899 AC_DEFINE(USG5_4, [])
3900 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3901 ;;
3902
3903 unixware)
3904 AC_DEFINE(USG, [])
3905 AC_DEFINE(USG5, [])
3906 AC_DEFINE(USG5_4, [])
3907 ;;
3908 esac
3909
3910
3911 case $opsys in
3912 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3913 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3914 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3915 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3916 cygwin)
3917 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3918 G_SLICE environment variable to "always-malloc" at startup, if
3919 using GTK.])
3920 ;;
3921
3922 hpux11)
3923 dnl See comments in sysdep.c:sys_signal.
3924 dnl SA_RESTART resets the timeout of `select' on hpux11.
3925 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3926 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3927 be used in batch mode.])
3928 dnl It works to open the pty's tty in the parent (Emacs), then
3929 dnl close and reopen it in the child.
3930 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3931 works to open a pty's tty in the parent process, then close and
3932 reopen it in the child.])
3933 ;;
3934
3935 irix6-5)
3936 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3937 use VSUSP instead of VSWTCH.])
3938 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3939 should not call setpgrp.])
3940 ;;
3941
3942 sol2-10)
3943 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3944 on Solaris.])
3945 ;;
3946 esac
3947
3948 # Set up the CFLAGS for real compilation, so we can substitute it.
3949 CFLAGS="$REAL_CFLAGS"
3950 CPPFLAGS="$REAL_CPPFLAGS"
3951
3952 ## Hack to detect a buggy GCC version.
3953 if test "x$GCC" = xyes \
3954 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3955 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3956 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3957 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3958 fi
3959
3960 version=$PACKAGE_VERSION
3961
3962 ### Specify what sort of things we'll be editing into Makefile and config.h.
3963 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3964 AC_SUBST(version)
3965 AC_SUBST(configuration)
3966 ## Unused?
3967 AC_SUBST(canonical)
3968 AC_SUBST(srcdir)
3969 AC_SUBST(prefix)
3970 AC_SUBST(exec_prefix)
3971 AC_SUBST(bindir)
3972 AC_SUBST(datadir)
3973 AC_SUBST(sharedstatedir)
3974 AC_SUBST(libexecdir)
3975 AC_SUBST(mandir)
3976 AC_SUBST(infodir)
3977 AC_SUBST(lispdir)
3978 AC_SUBST(leimdir)
3979 AC_SUBST(standardlisppath)
3980 AC_SUBST(locallisppath)
3981 AC_SUBST(lisppath)
3982 AC_SUBST(x_default_search_path)
3983 AC_SUBST(etcdir)
3984 AC_SUBST(archlibdir)
3985 AC_SUBST(docdir)
3986 AC_SUBST(bitmapdir)
3987 AC_SUBST(gamedir)
3988 AC_SUBST(gameuser)
3989 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3990 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3991 ## end of LIBX_BASE, but nothing ever set it.
3992 AC_SUBST(LD_SWITCH_X_SITE)
3993 AC_SUBST(C_SWITCH_X_SITE)
3994 AC_SUBST(GNUSTEP_CFLAGS)
3995 AC_SUBST(CFLAGS)
3996 ## Used in lwlib/Makefile.in.
3997 AC_SUBST(X_TOOLKIT_TYPE)
3998 AC_SUBST(ns_appdir)
3999 AC_SUBST(ns_appbindir)
4000 AC_SUBST(ns_appresdir)
4001 AC_SUBST(ns_appsrc)
4002 AC_SUBST(GNU_OBJC_CFLAGS)
4003 AC_SUBST(OTHER_FILES)
4004
4005 if test -n "${term_header}"; then
4006 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4007 [Define to the header for the built-in window system.])
4008 fi
4009
4010 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4011 [Define to the canonical Emacs configuration name.])
4012 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4013 [Define to the options passed to configure.])
4014 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4015 define this to include extra configuration information.])
4016
4017 XMENU_OBJ=
4018 XOBJ=
4019 FONT_OBJ=
4020 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4021 AC_DEFINE(HAVE_X_WINDOWS, 1,
4022 [Define to 1 if you want to use the X window system.])
4023 XMENU_OBJ=xmenu.o
4024 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4025 FONT_OBJ=xfont.o
4026 if test "$HAVE_XFT" = "yes"; then
4027 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4028 elif test "$HAVE_FREETYPE" = "yes"; then
4029 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4030 fi
4031 AC_SUBST(FONT_OBJ)
4032 fi
4033 AC_SUBST(XMENU_OBJ)
4034 AC_SUBST(XOBJ)
4035 AC_SUBST(FONT_OBJ)
4036
4037 WIDGET_OBJ=
4038 MOTIF_LIBW=
4039 if test "${USE_X_TOOLKIT}" != "none" ; then
4040 WIDGET_OBJ=widget.o
4041 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4042 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4043 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4044 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4045 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4046 MOTIF_LIBW=-lXm
4047 case "$opsys" in
4048 gnu-linux)
4049 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4050 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4051 ;;
4052
4053 unixware)
4054 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4055 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4056 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4057 ;;
4058
4059 aix4-2)
4060 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4061 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4062 ;;
4063 esac
4064 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4065 fi
4066 fi
4067 AC_SUBST(WIDGET_OBJ)
4068
4069 TOOLKIT_LIBW=
4070 case "$USE_X_TOOLKIT" in
4071 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4072 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4073 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4074 esac
4075 AC_SUBST(TOOLKIT_LIBW)
4076
4077 if test "$USE_X_TOOLKIT" = "none"; then
4078 LIBXT_OTHER="\$(LIBXSM)"
4079 OLDXMENU_TARGET="really-oldXMenu"
4080 else
4081 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4082 OLDXMENU_TARGET="really-lwlib"
4083 fi
4084 AC_SUBST(LIBXT_OTHER)
4085
4086 ## The X Menu stuff is present in the X10 distribution, but missing
4087 ## from X11. If we have X10, just use the installed library;
4088 ## otherwise, use our own copy.
4089 if test "${HAVE_X11}" = "yes" ; then
4090 AC_DEFINE(HAVE_X11, 1,
4091 [Define to 1 if you want to use version 11 of X windows.
4092 Otherwise, Emacs expects to use version 10.])
4093
4094 if test "$USE_X_TOOLKIT" = "none"; then
4095 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4096 else
4097 OLDXMENU="\${lwlibdir}/liblw.a"
4098 fi
4099 LIBXMENU="\$(OLDXMENU)"
4100 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4101 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4102 else
4103 ## For a syntactically valid Makefile; not actually used for anything.
4104 ## See comments in src/Makefile.in.
4105 OLDXMENU=nothing
4106 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4107 if test "${HAVE_X_WINDOWS}" = "yes"; then
4108 LIBXMENU="-lXMenu"
4109 else
4110 LIBXMENU=
4111 fi
4112 LIBX_OTHER=
4113 OLDXMENU_DEPS=
4114 fi
4115
4116 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4117 OLDXMENU_TARGET=
4118 OLDXMENU=nothing
4119 LIBXMENU=
4120 OLDXMENU_DEPS=
4121 fi
4122
4123 AC_SUBST(OLDXMENU_TARGET)
4124 AC_SUBST(OLDXMENU)
4125 AC_SUBST(LIBXMENU)
4126 AC_SUBST(LIBX_OTHER)
4127 AC_SUBST(OLDXMENU_DEPS)
4128
4129 if test "${HAVE_MENUS}" = "yes" ; then
4130 AC_DEFINE(HAVE_MENUS, 1,
4131 [Define to 1 if you have mouse menus.
4132 (This is automatic if you use X, but the option to specify it remains.)
4133 It is also defined with other window systems that support xmenu.c.])
4134 fi
4135
4136 if test "${GNU_MALLOC}" = "yes" ; then
4137 AC_DEFINE(GNU_MALLOC, 1,
4138 [Define to 1 if you want to use the GNU memory allocator.])
4139 fi
4140
4141 RALLOC_OBJ=
4142 if test "${REL_ALLOC}" = "yes" ; then
4143 AC_DEFINE(REL_ALLOC, 1,
4144 [Define REL_ALLOC if you want to use the relocating allocator for
4145 buffer space.])
4146
4147 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4148 fi
4149 AC_SUBST(RALLOC_OBJ)
4150
4151 if test "$opsys" = "cygwin"; then
4152 CYGWIN_OBJ="sheap.o"
4153 ## Cygwin differs because of its unexec().
4154 PRE_ALLOC_OBJ=
4155 POST_ALLOC_OBJ=lastfile.o
4156 else
4157 CYGWIN_OBJ=
4158 PRE_ALLOC_OBJ=lastfile.o
4159 POST_ALLOC_OBJ=
4160 fi
4161 AC_SUBST(CYGWIN_OBJ)
4162 AC_SUBST(PRE_ALLOC_OBJ)
4163 AC_SUBST(POST_ALLOC_OBJ)
4164
4165 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4166 # it temporarily reverts them to their pre-pkg-config values,
4167 # because gnulib needs to work with both src (which uses the
4168 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4169 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4170 # and it therefore needs to run in an environment where LIBS does not
4171 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4172 # for some package unrelated to lib-src.
4173 SAVE_CFLAGS=$CFLAGS
4174 SAVE_LIBS=$LIBS
4175 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4176 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4177 gl_ASSERT_NO_GNULIB_POSIXCHECK
4178 gl_ASSERT_NO_GNULIB_TESTS
4179 gl_INIT
4180 CFLAGS=$SAVE_CFLAGS
4181 LIBS=$SAVE_LIBS
4182
4183 case "$opsys" in
4184 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4185
4186 darwin)
4187 ## The -headerpad option tells ld (see man page) to leave room at the
4188 ## end of the header for adding load commands. Needed for dumping.
4189 ## 0x690 is the total size of 30 segment load commands (at 56
4190 ## each); under Cocoa 31 commands are required.
4191 if test "$HAVE_NS" = "yes"; then
4192 libs_nsgui="-framework AppKit"
4193 headerpad_extra=6C8
4194 else
4195 libs_nsgui=
4196 headerpad_extra=690
4197 fi
4198 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4199
4200 ## This is here because src/Makefile.in did some extra fiddling around
4201 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4202 ## #ifndef LD_SWITCH_SYSTEM
4203 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4204 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4205 ## not using gcc, darwin.
4206 ## Because this was done in src/Makefile.in, the resulting part of
4207 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4208 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4209 ## rather than LD_SWITCH_SYSTEM.
4210 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4211 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4212 ;;
4213
4214 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4215 ## find X at run-time.
4216 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4217 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4218 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4219 ## had different values in configure (in ac_link) and src/Makefile.in.
4220 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4221 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4222
4223 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4224 esac
4225
4226 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4227 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4228 fi
4229
4230 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4231
4232
4233 LD_FIRSTFLAG=
4234 ORDINARY_LINK=
4235 case "$opsys" in
4236 ## gnu: GNU needs its own crt0.
4237 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4238
4239 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4240 ## library search parth, i.e. it won't search /usr/lib for libc and
4241 ## friends. Using -nostartfiles instead avoids this problem, and
4242 ## will also work on earlier NetBSD releases.
4243 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4244
4245 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4246 ## MkLinux/LinuxPPC needs this.
4247 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4248 gnu-*)
4249 case "$canonical" in
4250 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4251 esac
4252 ;;
4253 esac
4254
4255
4256 if test "x$ORDINARY_LINK" = "xyes"; then
4257
4258 LD_FIRSTFLAG=""
4259 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4260
4261 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4262 ## freebsd, gnu-* not on powerpc*|s390x*.
4263 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4264
4265 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4266 ## places that are difficult to figure out at make time. Fortunately,
4267 ## these same versions allow you to pass arbitrary flags on to the
4268 ## linker, so there is no reason not to use it as a linker.
4269 ##
4270 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4271 ## searching for libraries in its internal directories, so we have to
4272 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4273 LD_FIRSTFLAG="-nostdlib"
4274 fi
4275
4276 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4277 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4278
4279 AC_SUBST(LD_FIRSTFLAG)
4280
4281
4282 ## FIXME? The logic here is not precisely the same as that above.
4283 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4284 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4285 LIB_GCC=
4286 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4287
4288 case "$opsys" in
4289 freebsd|netbsd|openbsd) LIB_GCC= ;;
4290
4291 gnu-*)
4292 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4293 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4294 case $host_cpu in
4295 arm*)
4296 LIB_GCC="-lgcc_s"
4297 ;;
4298 *)
4299 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4300 ## immediately undefine it again and redefine it to empty.
4301 ## Was the C_SWITCH_X_SITE part really necessary?
4302 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4303 LIB_GCC=
4304 ;;
4305 esac
4306 ;;
4307
4308 ## Ask GCC where to find libgcc.a.
4309 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4310 esac
4311 fi dnl if $GCC
4312 AC_SUBST(LIB_GCC)
4313
4314 ## Common for all window systems
4315 if test "$window_system" != "none"; then
4316 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4317 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4318 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4319 fi
4320
4321 AC_SUBST(WINDOW_SYSTEM_OBJ)
4322
4323 AH_TOP([/* GNU Emacs site configuration template file.
4324
4325 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4326 Free Software Foundation, Inc.
4327
4328 This file is part of GNU Emacs.
4329
4330 GNU Emacs is free software: you can redistribute it and/or modify
4331 it under the terms of the GNU General Public License as published by
4332 the Free Software Foundation, either version 3 of the License, or
4333 (at your option) any later version.
4334
4335 GNU Emacs is distributed in the hope that it will be useful,
4336 but WITHOUT ANY WARRANTY; without even the implied warranty of
4337 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4338 GNU General Public License for more details.
4339
4340 You should have received a copy of the GNU General Public License
4341 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4342
4343
4344 /* No code in Emacs #includes config.h twice, but some bits of code
4345 intended to work with other packages as well (like gmalloc.c)
4346 think they can include it as many times as they like. */
4347 #ifndef EMACS_CONFIG_H
4348 #define EMACS_CONFIG_H
4349 ])dnl
4350
4351 AH_BOTTOM([#include <conf_post.h>
4352
4353 #endif /* EMACS_CONFIG_H */
4354
4355 /*
4356 Local Variables:
4357 mode: c
4358 End:
4359 */
4360 ])dnl
4361
4362 #### Report on what we decided to do.
4363 #### Report GTK as a toolkit, even if it doesn't use Xt.
4364 #### It makes printing result more understandable as using GTK sets
4365 #### toolkit_scroll_bars to yes by default.
4366 if test "${HAVE_GTK}" = "yes"; then
4367 if test "${with_gtk3}" = "yes"; then
4368 USE_X_TOOLKIT=GTK3
4369 else
4370 USE_X_TOOLKIT=GTK
4371 fi
4372 fi
4373
4374 echo "
4375 Configured for \`${canonical}'.
4376
4377 Where should the build process find the source code? ${srcdir}
4378 What compiler should emacs be built with? ${CC} ${CFLAGS}
4379 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4380 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4381 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4382 What window system should Emacs use? ${window_system}
4383 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4384
4385 if test -n "${x_includes}"; then
4386 echo " Where do we find X Windows header files? ${x_includes}"
4387 else
4388 echo " Where do we find X Windows header files? Standard dirs"
4389 fi
4390 if test -n "${x_libraries}"; then
4391 echo " Where do we find X Windows libraries? ${x_libraries}"
4392 else
4393 echo " Where do we find X Windows libraries? Standard dirs"
4394 fi
4395
4396 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4397 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4398 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4399 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4400 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4401 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4402 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4403 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4404
4405 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4406 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4407 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4408 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4409 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4410 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4411 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4412
4413 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4414 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4415 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4416 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4417
4418 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4419 echo
4420
4421 if test -n "${EMACSDATA}"; then
4422 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4423 fi
4424 if test -n "${EMACSDOC}"; then
4425 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4426 fi
4427
4428 echo
4429
4430 if test "$HAVE_NS" = "yes"; then
4431 echo
4432 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4433 The installed application will go to nextstep/Emacs.app and can be
4434 run or moved from there."
4435 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4436 echo "The application will be fully self-contained."
4437 else
4438 echo "The lisp resources for the application will be installed under ${prefix}.
4439 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4440 to run if these resources are not installed."
4441 fi
4442 echo
4443 fi
4444
4445 if test "${opsys}" = "cygwin"; then
4446 case `uname -r` in
4447 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4448 echo
4449 ;;
4450 esac
4451 fi
4452
4453 # Remove any trailing slashes in these variables.
4454 [test "${prefix}" != NONE &&
4455 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4456 test "${exec_prefix}" != NONE &&
4457 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4458
4459 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4460 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4461 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4462 dnl (else you get "no `Makefile.am' found for any configure output").
4463 dnl This will work, but you get a config.status that is not quite right
4464 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4465 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4466 dnl it seems better to just live with the duplication.
4467 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"
4468
4469 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4470 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4471 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4472 leim/Makefile])
4473
4474 dnl test/ is not present in release tarfiles.
4475 opt_makefile=test/automated/Makefile
4476
4477 if test -f $srcdir/${opt_makefile}.in; then
4478 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4479 dnl Again, it's best not to use a variable. Though you can add
4480 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4481 AC_CONFIG_FILES([test/automated/Makefile])
4482 fi
4483
4484
4485 dnl admin/ may or may not be present.
4486 opt_makefile=admin/unidata/Makefile
4487
4488 if test -f $srcdir/${opt_makefile}.in; then
4489 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4490 AC_CONFIG_FILES([admin/unidata/Makefile])
4491 fi
4492
4493
4494 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4495
4496 AC_SUBST(SUBDIR_MAKEFILES_IN)
4497
4498 dnl Make the necessary directories, if they don't exist.
4499 AC_CONFIG_COMMANDS([mkdirs], [
4500 for dir in etc lisp ; do
4501 test -d ${dir} || mkdir ${dir}
4502 done
4503 ])
4504
4505 dnl You might wonder (I did) why epaths.h is generated by running make,
4506 dnl rather than just letting configure generate it from epaths.in.
4507 dnl One reason is that the various paths are not fully expanded (see above);
4508 dnl eg gamedir=${prefix}/var/games/emacs.
4509 dnl Secondly, the GNU Coding standards require that one should be able
4510 dnl to run `make prefix=/some/where/else' and override the values set
4511 dnl by configure. This also explains the `move-if-change' test and
4512 dnl the use of force in the `epaths-force' rule in Makefile.in.
4513 AC_CONFIG_COMMANDS([epaths], [
4514 echo creating src/epaths.h
4515 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4516 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4517
4518 AC_CONFIG_COMMANDS([gdbinit], [
4519 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4520 echo creating src/.gdbinit
4521 echo source $srcdir/src/.gdbinit > src/.gdbinit
4522 fi
4523 ])
4524
4525 AC_OUTPUT