2004-03-29 Martin Baulig <martin@ximian.com>
[mono.git] / configure.in
1 AC_INIT(README)
2 AC_CANONICAL_SYSTEM
3 AM_CONFIG_HEADER(config.h)
4 AM_INIT_AUTOMAKE(mono,0.31.99)
5 AM_MAINTAINER_MODE
6
7 dnl
8 dnl libgc checks
9 dnl
10
11 gc_headers=no
12 gc=included
13 use_included_gc=no
14
15 if test -d $srcdir/libgc ; then
16   gc_default=included
17 else
18   gc_default=boehm
19 fi
20
21 #
22 # These are the flags that need to be stored in the mono.pc file for 
23 # compiling code that will embed Mono
24 #
25 libmono_cflags=""
26 libmono_ldflags=""
27 AC_SUBST(libmono_cflags)
28 AC_SUBST(libmono_ldflags)
29
30 dnl if linker handles the version script
31 no_version_script=no
32
33 # Thread configuration inspired by sleepycat's db
34 AC_MSG_CHECKING([host platform characteristics])
35 libgc_threads=no
36 case "$host" in
37         *-*-mingw*|*-*-cygwin*)
38                 platform_win32=yes
39                 AC_DEFINE(PLATFORM_WIN32)
40                 CC="gcc -mno-cygwin"
41                 HOST_CC="gcc"
42 # latest libgc already defines GC_WIN32_THREADS
43 #               CPPFLAGS="$CPPFLAGS -DGC_WIN32_THREADS -DWIN32_THREADS"
44                 CPPFLAGS="$CPPFLAGS -DWIN32_THREADS"
45                 libdl=
46                 libgc_threads=win32
47                 gc_default=boehm 
48                 ;;
49         *-*-*netbsd*)
50                 platform_win32=no
51                 CPPFLAGS="$CPPFLAGS -D_REENTRANT"
52                 libmono_cflags="-D_REENTRANT"
53                 LDFLAGS="$LDFLAGS -pthread"
54                 libmono_ldflags="-pthread"
55                 AC_DEFINE(NEED_LINK_UNLINK)
56                 libdl=
57                 libgc_threads=pthreads
58                 ;;
59         *-*-*freebsd*|*-*-*openbsd*)
60                 platform_win32=no
61                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE"
62                 libmono_cflags="-D_THREAD_SAFE"
63                 LDFLAGS="$LDFLAGS -pthread"
64                 libmono_ldflags="-pthread"
65                 AC_DEFINE(NEED_LINK_UNLINK)
66                 AC_DEFINE(PTHREAD_POINTER_ID)
67                 libdl=
68                 libgc_threads=pthreads
69                 ;;
70         *-*-linux*)
71                 platform_win32=no
72                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -DMONO_USE_EXC_TABLES -D_GNU_SOURCE -D_REENTRANT -fexceptions"
73                 libmono_cflags="-DMONO_USE_EXC_TABLES -fexceptions -D_REENTRANT"
74                 libmono_ldflags="-lpthread"
75                 libdl="-ldl"
76                 libgc_threads=pthreads
77                 ;;
78         *-*-hpux*)
79                 platform_win32=no
80                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
81                 CFLAGS="$CFLAGS +ESdbgasm"
82                 LDFLAGS="$LDFLAGS -z"
83                 libmono_cflags="-D_REENTRANT"
84                 libmono_ldflags="-lpthread"
85                 libgc_threads=pthreads
86                 AC_DEFINE(NEED_LINK_UNLINK)
87                 ;;
88         *-*-solaris*)
89                 platform_win32=no
90                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT"
91                 AC_DEFINE(NEED_LINK_UNLINK)
92                 libmono_cflags="-D_REENTRANT"
93                 libgc_threads=pthreads
94                 ;;
95         *-*-darwin*)
96                 platform_win32=no
97                 CPPFLAGS="$CPPFLAGS -no-cpp-precomp -D_THREAD_SAFE"
98                 libmono_cflags="-D_THREAD_SAFE"
99                 LDFLAGS="$LDFLAGS -pthread"
100                 libmono_ldflags="-pthread"
101                 AC_DEFINE(NEED_LINK_UNLINK)
102                 AC_DEFINE(PTHREAD_POINTER_ID)
103                 AC_DEFINE(USE_MACH_SEMA)
104                 no_version_script=yes
105                 libdl=
106                 libgc_threads=no
107                 gc_default=none 
108                 ;;
109         *)
110                 AC_MSG_WARN([*** Please add $host to configure.in checks!])
111                 platform_win32=no
112                 libdl="-ldl"
113                 ;;
114 esac
115 AC_MSG_RESULT(ok)
116 AM_CONDITIONAL(PLATFORM_WIN32, test x$platform_win32 = xyes)
117
118 AM_CONDITIONAL(NO_VERSION_SCRIPT, test x$no_version_script = xyes)
119
120 AC_CHECK_TOOL(CC, gcc, gcc)
121 AC_PROG_CC
122 AM_PROG_CC_STDC
123 AC_PROG_INSTALL
124 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
125 : ${CCAS='$(CC)'}
126 # Set ASFLAGS if not already set.
127 : ${CCASFLAGS='$(CFLAGS)'}
128 AC_SUBST(CCAS)
129 AC_SUBST(CCASFLAGS)
130
131 AC_CHECK_PROG(BISON, bison,yes,no)
132 if test "x$BISON" = "xno";
133 then
134         AC_MSG_ERROR([You need to install bison])
135 fi
136
137 dnl may require a specific autoconf version
138 dnl AC_PROG_CC_FOR_BUILD
139 dnl CC_FOR_BUILD not automatically detected
140 CC_FOR_BUILD=$CC
141 BUILD_EXEEXT=
142 if test "x$cross_compiling" = "xyes"; then
143         CC_FOR_BUILD=cc
144         BUILD_EXEEXT=""
145 fi
146 AC_SUBST(CC_FOR_BUILD)
147 AC_SUBST(HOST_CC)
148 AC_SUBST(BUILD_EXEEXT)
149
150 # Set STDC_HEADERS
151 AC_HEADER_STDC
152 AC_LIBTOOL_WIN32_DLL
153 AM_PROG_LIBTOOL
154
155 # Test whenever ld supports -version-script
156 AC_PROG_LD
157 AC_PROG_LD_GNU
158 if test "x$lt_cv_prog_gnu_ld" = "xno"; then
159    no_version_script=yes
160 fi
161
162 AC_CHECK_HEADERS(sys/filio.h sys/sockio.h netdb.h utime.h semaphore.h sys/un.h)
163
164 # for mono/mini/tramp-x86.c
165 AC_CHECK_HEADERS(valgrind/memcheck.h)
166
167 # for mono/metadata/debug-symfile.c
168 AC_CHECK_HEADERS(elf.h)
169
170 # for mono/dis
171 AC_CHECK_HEADERS(wchar.h)
172
173 # not 64 bit clean in cross-compile
174 AC_CHECK_SIZEOF(void *, 4)
175
176 WARN=''
177 if test x"$GCC" = xyes; then
178         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings'
179                 # The runtime code does not respect ANSI C strict aliasing rules
180                 CFLAGS="$CFLAGS -fno-strict-aliasing"
181 else
182         # The Sun Forte compiler complains about inline functions that access static variables
183         # so disable all inlining.
184         case "$host" in
185         *-*-solaris*)
186                 CFLAGS="$CFLAGS -Dinline="
187                 ;;
188         esac
189 fi
190 CFLAGS="$CFLAGS -g $WARN"
191
192 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
193 if test "x$PKG_CONFIG" = "xno"; then
194         AC_MSG_ERROR([You need to install pkg-config])
195 fi
196
197 dnl for use on the build system
198 dnl pkg-config is stupid
199 BUILD_GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
200 BUILD_GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`
201 AC_SUBST(BUILD_GLIB_CFLAGS)
202 AC_SUBST(BUILD_GLIB_LIBS)
203
204 PKG_PATH=
205 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir],
206         if test x$with_crosspkgdir = "x"; then
207                 if test -s $PKG_CONFIG_PATH; then
208                         PKG_PATH=$PKG_CONFIG_PATH
209                 fi
210         else
211                 PKG_PATH=$with_crosspkgdir
212                 PKG_CONFIG_PATH=$PKG_PATH
213                 export PKG_CONFIG_PATH
214         fi
215 )
216
217 ## Versions of dependencies
218 GLIB_REQUIRED_VERSION=1.3.11
219
220 PKG_CHECK_MODULES(BASE_DEPENDENCIES, glib-2.0 >= $GLIB_REQUIRED_VERSION)
221
222 GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
223 GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`
224 GMODULE_CFLAGS=`$PKG_CONFIG --cflags gmodule-2.0`
225 GMODULE_LIBS=`$PKG_CONFIG --libs gmodule-2.0`
226
227 AC_SUBST(GLIB_CFLAGS)
228 AC_SUBST(GLIB_LIBS)
229 AC_SUBST(GMODULE_CFLAGS)
230 AC_SUBST(GMODULE_LIBS)
231
232 AC_ARG_WITH(gc, [  --with-gc=boehm,included,none],[gc=$with_gc],[gc=$gc_default])
233
234 # Enable support for NPTL only features like fast thread-local storage
235 # We can't reliably detect nptl at compile & run time
236 # so this option will stay until nptl becomes more widespread
237 AC_ARG_WITH(nptl, [  --with-nptl=yes,no      enable/disable support for NPTL],[],[with_nptl=yes])
238
239 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
240 # This does not work on some platforms (bug #55253)
241 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack],[],[with_sigaltstack=yes])
242
243 # assembly bundle support, see metadata/make-bundle.pl for more info
244 AC_ARG_WITH(bundle, [  --with-bundle=bundle_template],[
245         BUNDLE_FILE=$with_bundle
246         AC_SUBST(BUNDLE_FILE)
247         AC_DEFINE(WITH_BUNDLE)
248 ],[with_bundle=no])
249 AM_CONDITIONAL(WITH_BUNDLE, test x$with_bundle != xno)
250
251 LIBGC_CFLAGS=
252 LIBGC_LIBS=
253 libgc_dir=
254 case "x$gc" in
255         xboehm|xbohem|xyes)
256                 AC_CHECK_HEADERS(gc.h gc/gc.h, gc_headers=yes)
257                 AC_CHECK_LIB(gc, GC_malloc, found_boehm="yes",,$libdl)
258
259                 if test "x$found_boehm" != "xyes"; then
260                         AC_MSG_ERROR("GC requested but libgc not found! Install libgc or run configure with --with-gc=none.")
261                 fi
262                 if test "x$gc_headers" != "xyes"; then
263                         AC_MSG_ERROR("GC requested but header files not found! You may need to install them by hand.")
264                 fi
265
266                 AC_DEFINE(HAVE_BOEHM_GC)
267                 AC_SUBST(HAVE_BOEHM_GC)
268                 LIBGC_LIBS="-lgc $libdl"
269
270                 # AC_CHECK_FUNCS does not work for some reason...
271                 AC_CHECK_LIB(gc, GC_gcj_malloc, found_gcj_malloc="yes",,$libdl)
272                 if test "x$found_gcj_malloc" = "xyes"; then
273                         AC_DEFINE(HAVE_GC_GCJ_MALLOC)
274                 fi
275                 AC_CHECK_LIB(gc, GC_enable, found_gc_enable="yes",,$libdl)
276                 if test "x$found_gc_enable" = "xyes"; then
277                         AC_DEFINE(HAVE_GC_ENABLE)
278                 fi
279                 ;;
280
281         xincluded)
282                 AC_CONFIG_SUBDIRS(libgc)
283
284                 found_boehm=yes
285                 gc_headers=yes
286                 use_included_gc=yes
287                 libgc_dir=libgc
288
289                 LIBGC_CFLAGS='-I$(top_srcdir)/libgc/include'
290                 LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
291
292                 AC_DEFINE(HAVE_BOEHM_GC)
293                 AC_SUBST(HAVE_BOEHM_GC)
294
295                 AC_DEFINE(HAVE_GC_H)
296                 AC_DEFINE(USE_INCLUDED_LIBGC)
297
298                 # The included libgc contains GCJ support
299                 AC_DEFINE(HAVE_GC_GCJ_MALLOC)
300                 AC_DEFINE(HAVE_GC_ENABLE)
301                 ;;
302
303         xnone)
304                 AC_MSG_WARN("Compiling mono without GC.")
305                 ;;
306         *)
307                 AC_MSG_ERROR([Invalid argument to --with-gc.])
308                 ;;
309 esac
310
311 we_are_embedded_in_mono=yes
312 export we_are_embedded_in_mono
313 export libgc_threads
314
315 AM_CONDITIONAL(INCLUDED_LIBGC, test x$use_included_gc = xyes)
316 AC_SUBST(LIBGC_CFLAGS)
317 AC_SUBST(LIBGC_LIBS)
318 AC_SUBST(libgc_dir)
319
320 dnl
321 dnl End of libgc checks
322 dnl
323
324 if test x$platform_win32 = xno; then
325         dnl ******************************************************************
326         dnl *** Check for large file support                               ***
327         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
328         dnl ******************************************************************
329         
330         # Check that off_t can represent 2**63 - 1 correctly, working around
331         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
332         # CPPFLAGS and sets $large_offt to yes if the test succeeds
333         large_offt=no
334         AC_DEFUN(LARGE_FILES, [
335                 large_CPPFLAGS=$CPPFLAGS
336                 CPPFLAGS="$CPPFLAGS $1"
337                 AC_TRY_RUN([
338                         #include <sys/types.h>
339
340                         #define BIG_OFF_T (((off_t)1<<62)-1+((off_t)1<<62))
341
342                         int main(void) {
343                                 int big_off_t=((BIG_OFF_T%2147483629==721) &&
344                                                (BIG_OFF_T%2147483647==1));
345                                 if(big_off_t) {
346                                         exit(0);
347                                 } else {
348                                         exit(1);
349                                 }
350                         }
351                 ], [
352                         AC_MSG_RESULT(ok)
353                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT)
354                         large_CPPFLAGS="$large_CPPFLAGS $1"
355                         large_offt=yes
356                 ], [
357                         AC_MSG_RESULT(no)
358                 ], "")
359                 CPPFLAGS=$large_CPPFLAGS
360         ])
361
362         AC_MSG_CHECKING(if off_t is 64 bits wide)
363         LARGE_FILES("")
364         if test $large_offt = no; then
365                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
366                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
367         fi
368         if test $large_offt = no; then
369                 AC_MSG_WARN([No 64 bit file size support available])
370         fi
371         
372         dnl *****************************
373         dnl *** Checks for libsocket  ***
374         dnl *****************************
375         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
376
377         dnl *******************************
378         dnl *** Checks for MSG_NOSIGNAL ***
379         dnl *******************************
380         AC_MSG_CHECKING(for MSG_NOSIGNAL)
381         AC_TRY_COMPILE([#include <sys/socket.h>], [
382                 int f = MSG_NOSIGNAL;
383         ], [
384                 # Yes, we have it...
385                 AC_MSG_RESULT(yes)
386                 AC_DEFINE(HAVE_MSG_NOSIGNAL)
387         ], [
388                 # We'll have to use signals
389                 AC_MSG_RESULT(no)
390         ])
391
392         dnl *****************************
393         dnl *** Checks for SOL_IP     ***
394         dnl *****************************
395         AC_MSG_CHECKING(for SOL_IP)
396         AC_TRY_COMPILE([#include <netdb.h>], [
397                 int level = SOL_IP;
398         ], [
399                 # Yes, we have it...
400                 AC_MSG_RESULT(yes)
401                 AC_DEFINE(HAVE_SOL_IP)
402         ], [
403                 # We'll have to use getprotobyname
404                 AC_MSG_RESULT(no)
405         ])
406
407         dnl *****************************
408         dnl *** Checks for SOL_IPV6     ***
409         dnl *****************************
410         AC_MSG_CHECKING(for SOL_IPV6)
411         AC_TRY_COMPILE([#include <netdb.h>], [
412                 int level = SOL_IPV6;
413         ], [
414                 # Yes, we have it...
415                 AC_MSG_RESULT(yes)
416                 AC_DEFINE(HAVE_SOL_IPV6)
417         ], [
418                 # We'll have to use getprotobyname
419                 AC_MSG_RESULT(no)
420         ])
421
422         dnl *****************************
423         dnl *** Checks for SOL_TCP    ***
424         dnl *****************************
425         AC_MSG_CHECKING(for SOL_TCP)
426         AC_TRY_COMPILE([#include <netdb.h>], [
427                 int level = SOL_TCP;
428         ], [
429                 # Yes, we have it...
430                 AC_MSG_RESULT(yes)
431                 AC_DEFINE(HAVE_SOL_TCP)
432         ], [
433                 # We'll have to use getprotobyname
434                 AC_MSG_RESULT(no)
435         ])
436
437         dnl *****************************
438         dnl *** Checks for IP_PKTINFO ***
439         dnl *****************************
440         AC_MSG_CHECKING(for IP_PKTINFO)
441         AC_TRY_COMPILE([#include <netdb.h>], [
442                 int level = IP_PKTINFO;
443         ], [
444                 # Yes, we have it...
445                 AC_MSG_RESULT(yes)
446                 AC_DEFINE(HAVE_IP_PKTINFO)
447         ], [
448                 AC_MSG_RESULT(no)
449         ])
450
451         dnl *********************************
452         dnl *** Check for struct ip_mreqn ***
453         dnl *********************************
454         AC_MSG_CHECKING(for struct ip_mreqn)
455         AC_TRY_COMPILE([#include <netinet/in.h>], [
456                 struct ip_mreqn mreq;
457                 mreq.imr_address.s_addr = 0;
458         ], [
459                 # Yes, we have it...
460                 AC_MSG_RESULT(yes)
461                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
462         ], [
463                 # We'll just have to try and use struct ip_mreq
464                 AC_MSG_RESULT(no)
465                 AC_MSG_CHECKING(for struct ip_mreq)
466                 AC_TRY_COMPILE([#include <netinet/in.h>], [
467                         struct ip_mreq mreq;
468                         mreq.imr_interface.s_addr = 0;
469                 ], [
470                         # Yes, we have it...
471                         AC_MSG_RESULT(yes)
472                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
473                 ], [
474                         # No multicast support
475                         AC_MSG_RESULT(no)
476                 ])
477         ])
478         
479         dnl **********************************
480         dnl *** Check for gethostbyname2_r ***
481         dnl **********************************
482         AC_MSG_CHECKING(for gethostbyname2_r)
483                 AC_TRY_LINK([#include <netdb.h>], [
484                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
485         ], [
486                 # Yes, we have it...
487                 AC_MSG_RESULT(yes)
488                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R)
489         ], [
490                 AC_MSG_RESULT(no)
491         ])
492
493         dnl *****************************
494         dnl *** Checks for libnsl     ***
495         dnl *****************************
496         AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl")
497
498         AC_CHECK_FUNCS(inet_pton inet_aton)
499
500         dnl ***********************************************
501         dnl *** Checks for size of sockaddr_un.sun_path ***
502         dnl ***********************************************
503         # AC_CHECK_SIZEOF can't cope with struct members :-(
504         AC_MSG_CHECKING(size of sockaddr_un.sun_path)
505         AC_CACHE_VAL(cv_mono_sizeof_sunpath,
506                 [AC_TRY_RUN([
507                         #include <sys/types.h>
508                         #include <stdio.h>
509                         #include <sys/un.h>
510
511                         int main(void) {
512                                 struct sockaddr_un sock_un;
513                                 FILE *f=fopen("conftestval", "w");
514                                 if(!f) exit(1);
515                                 fprintf(f, "%d\n", sizeof(sock_un.sun_path));
516                                 exit(0);
517                         }
518                 ], cv_mono_sizeof_sunpath=`cat conftestval`,
519                    cv_mono_sizeof_sunpath=0,
520                    cv_mono_sizeof_sunpath=0)])dnl
521         AC_MSG_RESULT($cv_mono_sizeof_sunpath)
522         AC_DEFINE_UNQUOTED(MONO_SIZEOF_SUNPATH, $cv_mono_sizeof_sunpath)
523
524         dnl *************************************
525         dnl *** Checks for zero length arrays ***
526         dnl *************************************
527         AC_MSG_CHECKING(whether $CC supports zero length arrays)
528         AC_TRY_COMPILE([
529                 struct s {
530                         int  length;
531                         char data [0];
532                 };
533         ], [], [
534                 AC_MSG_RESULT(yes)
535                 AC_DEFINE_UNQUOTED(MONO_ZERO_ARRAY_LENGTH, 0)
536         ], [
537                 AC_MSG_RESULT(no)
538                 AC_DEFINE_UNQUOTED(MONO_ZERO_ARRAY_LENGTH, 1)
539         ])
540
541         dnl *****************************
542         dnl *** Checks for libxnet    ***
543         dnl *****************************
544         case "${host}" in
545                 *solaris* )
546                         AC_MSG_CHECKING(for Solaris XPG4 support)
547                         if test -f /usr/lib/libxnet.so; then
548                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
549                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
550                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
551                                 LIBS="$LIBS -lxnet"
552                                 AC_MSG_RESULT(yes)
553                         else
554                                 AC_MSG_RESULT(no)
555                         fi
556
557                         if test "$GCC" = "yes"; then
558                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
559                         fi
560                 ;;
561         esac
562
563         dnl *****************************
564         dnl *** Checks for libpthread ***
565         dnl *****************************
566         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
567         AC_CHECK_HEADERS(pthread.h)
568         AC_CHECK_FUNCS(pthread_mutex_timedlock)
569         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
570         AC_TRY_COMPILE([ #include <pthread.h>], [
571                 pthread_mutexattr_t attr;
572                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
573         ], [
574                 AC_MSG_RESULT(ok)
575         ], [
576                 AC_MSG_RESULT(no)
577                 AC_MSG_WARN(Using mono_mutex_t for recursive mutexes)
578                 AC_DEFINE(USE_MONO_MUTEX)
579         ])
580         AC_CHECK_FUNCS(pthread_attr_setstacksize)
581
582         dnl ***********************************
583         dnl *** Checks for working __thread ***
584         dnl ***********************************
585         AC_MSG_CHECKING(for working __thread)
586         AC_TRY_RUN([
587                 #include <pthread.h>
588
589                 __thread int i;
590                 static int res1, res2;
591
592                 void thread_main (void *arg)
593                 {
594                         i = arg;
595                         sleep (1);
596                         if (arg == 1)
597                                 res1 = (i == arg);
598                         else
599                                 res2 = (i == arg);
600                 }
601
602                 int main () {
603                         pthread_t t1, t2;
604
605                         i = 5;
606
607                         pthread_create (&t1, NULL, thread_main, 1);
608                         pthread_create (&t2, NULL, thread_main, 2);
609
610                         pthread_join (t1, NULL);
611                         pthread_join (t2, NULL);
612
613                         return !(res1 + res2 == 2);
614                 }
615         ], [
616                         if test "x$with_nptl" != "xyes"; then
617                                 AC_MSG_RESULT(disabled)
618                         else
619                                 AC_MSG_RESULT(yes)
620                                 AC_DEFINE(HAVE_KW_THREAD)
621                         fi
622         ], [
623                         AC_MSG_RESULT(no)
624         ])
625
626         dnl **************************************
627         dnl *** Checks for working sigaltstack ***
628         dnl **************************************
629         AC_MSG_CHECKING(for working sigaltstack)
630         AC_TRY_RUN([
631                 #include <stdio.h>
632                 #include <stdlib.h>
633                 #include <unistd.h>
634                 #include <signal.h>
635                 #include <pthread.h>
636                 #include <sys/wait.h>
637
638                 static void
639                 sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
640                 {
641                         exit (0);
642                 }
643
644                 static void *
645                 loop (void *ignored)
646                 {
647                         char *ptr = NULL;
648
649                         *ptr = 0;
650                         return NULL;
651                 }
652
653                 static void
654                 child ()
655                 {
656                         struct sigaction sa;
657                         struct sigaltstack sas;
658                         pthread_t id;
659                         pthread_attr_t attr;
660
661                         sa.sa_sigaction = sigsegv_signal_handler;
662                         sigemptyset (&sa.sa_mask);
663                         sa.sa_flags = SA_SIGINFO | SA_STACK;
664                         if (sigaction (SIGSEGV, &sa, NULL) == -1) {
665                                 perror ("lala");
666                                 return;
667                         }
668
669                         sas.ss_sp = malloc (SIGSTKSZ);
670                         sas.ss_size = SIGSTKSZ;
671                         sas.ss_flags = SS_ONSTACK;
672                         if (sigaltstack (&sas, NULL) == -1) {
673                                 perror ("lala");
674                                 return;
675                         }
676
677                         pthread_attr_init (&attr);
678                         if (pthread_create(&id, &attr, loop, &attr) != 0) {
679                                 printf ("failed\n");
680                                 return;
681                         }
682
683                         sleep (100);
684                 }
685
686                 int
687                 main ()
688                 {
689                         pid_t son;
690                         int status;
691                         int i;
692
693                         son = fork ();
694                         if (son == -1) {
695                                 return 1;
696                         }
697
698                         if (son == 0) {
699                                 child ();
700                                 return 0;
701                         }
702
703                         for (i = 0; i < 3; ++i) {
704                                 sleep (1);
705                                 waitpid (son, &status, WNOHANG);
706                                 if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
707                                         return 0;
708                         }
709
710                         kill (son, SIGKILL);
711                         return 1;
712                 }
713
714         ], [
715                         if test "x$with_sigaltstack" != "xyes"; then
716                                 AC_MSG_RESULT(disabled)
717                         else
718                                 AC_MSG_RESULT(yes)
719                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK)
720                         fi
721         ], [
722                         with_sigaltstack=no
723                         AC_MSG_RESULT(no)
724         ])
725
726         dnl ********************************
727         dnl *** Checks for semaphore lib ***
728         dnl ********************************
729         # 'Real Time' functions on Solaris
730         # posix4 on Solaris 2.6
731         # pthread (first!) on Linux
732         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
733
734         dnl ********************************
735         dnl *** Checks for timezone stuff **
736         dnl ********************************
737         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
738                 AC_TRY_COMPILE([
739                         #include <time.h>
740                         ], [
741                         struct tm tm;
742                         tm.tm_gmtoff = 1;
743                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
744         if test $ac_cv_struct_tm_gmtoff = yes; then
745                 AC_DEFINE(HAVE_TM_GMTOFF)
746         else
747                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
748                         AC_TRY_COMPILE([
749                                 #include <time.h>
750                         ], [
751                                 timezone = 1;
752                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
753                 if test $ac_cv_var_timezone = yes; then
754                         AC_DEFINE(HAVE_TIMEZONE)
755                 else
756                         AC_ERROR(unable to find a way to determine timezone)
757                 fi
758         fi
759
760         dnl *********************************
761         dnl *** Checks for math functions ***
762         dnl *********************************
763         LIBS="$LIBS -lm";
764         AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
765                 AC_TRY_LINK([#include <math.h>], 
766                 [ finite(0.0); ], 
767                 AC_DEFINE(HAVE_FINITE) AC_MSG_RESULT(yes),
768                 AC_MSG_RESULT(no)))
769         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
770                 AC_TRY_LINK([#include <math.h>], 
771                 [ isfinite(0.0); ], 
772                 AC_DEFINE(HAVE_ISFINITE) AC_MSG_RESULT(yes),
773                 AC_MSG_RESULT(no)))
774
775         dnl ****************************************************************
776         dnl *** Checks for working poll() (macosx defines it but doesn't ***
777         dnl *** have it in the library (duh))                            ***
778         dnl ****************************************************************
779         AC_CHECK_FUNCS(poll)
780
781         dnl *************************
782         dnl *** Check for signbit ***
783         dnl *************************
784         AC_MSG_CHECKING(for signbit)
785         AC_TRY_LINK([#include <math.h>], [
786                 int s = signbit(1.0);
787         ], [
788                 AC_MSG_RESULT(yes)
789                 AC_DEFINE(HAVE_SIGNBIT)
790         ], [
791                 AC_MSG_RESULT(no)
792         ]) 
793
794         dnl *********************
795         dnl *** Check for AIO ***
796         dnl *********************
797         AC_CHECK_HEADERS(aio.h)
798         AC_CHECK_LIB(rt, aio_read, [ LIBS="$LIBS -lrt" ],)
799 else
800         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
801         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
802 fi
803
804 dnl socklen_t check
805 AC_MSG_CHECKING(for socklen_t)
806 AC_TRY_COMPILE([
807 #include <sys/types.h>
808 #include <sys/socket.h>
809 ],[
810   socklen_t foo;
811 ],[
812 ac_cv_c_socklen_t=yes
813         AC_DEFINE(HAVE_SOCKLEN_T)
814         AC_MSG_RESULT(yes)
815 ],[
816         AC_MSG_RESULT(no)
817 ])
818
819 AC_CHECK_FUNCS(truncl, , AC_MSG_CHECKING(for truncl in math.h)
820         AC_TRY_LINK([#include <math.h>], 
821         [ truncl(0.0); ], 
822         [
823                 AC_DEFINE(HAVE_TRUNCL) 
824                 AC_MSG_RESULT(yes)
825                 ac_cv_truncl=yes
826         ],
827         AC_MSG_RESULT(no)))
828
829 if test "x$ac_cv_truncl" != "xyes"; then
830    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL) LIBS="$LIBS -lsunmath"])
831 fi
832
833 dnl ****************************
834 dnl *** Look for /dev/random ***
835 dnl ****************************
836
837 AC_MSG_CHECKING([if usage of random device is requested])
838 AC_ARG_ENABLE(dev-random,
839 [  --disable-dev-random    disable the use of the random device],
840 try_dev_random=$enableval, try_dev_random=yes)
841 AC_MSG_RESULT($try_dev_random)
842
843 case "{$target}" in
844     *-openbsd*)
845     NAME_DEV_RANDOM="/dev/srandom"
846     ;;
847
848 dnl Win32 does not have /dev/random, they have their own method...
849
850     *-*-mingw*|*-*-cygwin*)
851     ac_cv_have_dev_random = no
852     ;;
853
854 dnl Everywhere else, it's /dev/random
855
856     *)
857     NAME_DEV_RANDOM="/dev/random"
858     ;;
859 esac
860
861 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM")
862
863 dnl Now check if the device actually exists
864
865 if test "x$try_dev_random" = "xyes"; then
866     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
867     [if test -r "$NAME_DEV_RANDOM" ; then
868         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
869     if test "x$ac_cv_have_dev_random" = "xyes"; then
870         AC_DEFINE(HAVE_CRYPT_RNG)
871     fi
872 else
873     AC_MSG_CHECKING(for random device)
874     ac_cv_have_dev_random=no
875     AC_MSG_RESULT(has been disabled)
876 fi
877
878 if test "x$platform_win32" = "xyes"; then
879     AC_DEFINE(HAVE_CRYPT_RNG)
880 fi
881
882 if test "x$ac_cv_have_dev_random" = "xno" \
883     && test "x$platform_win32" = "xno"; then
884     AC_MSG_WARN([[
885 ***
886 *** A system-provided entropy source was not found on this system.
887 *** Because of this, the System.Security.Cryptography random number generator
888 *** will throw a NotImplemented exception.
889 ***
890 *** If you are seeing this message, and you know your system DOES have an
891 *** entropy collection in place, please contact <crichton@gimp.org> and
892 *** provide information about the system and how to access the random device.
893 ***
894 *** For those systems who lack a random device, EGD support is forthcoming.
895 ***]])
896 fi
897  
898 AC_MSG_CHECKING([if inter-process shared handles are requested])
899 AC_ARG_ENABLE(shared-handles, [  --disable-shared-handles disable inter-process shared handles], try_shared_handles=$enableval, try_shared_handles=yes)
900 AC_MSG_RESULT($try_shared_handles)
901 if test "x$try_shared_handles" != "xyes"; then
902         AC_DEFINE(DISABLE_SHARED_HANDLES)
903         AC_SUBST(DISABLE_SHARED_HANDLES)
904 fi
905
906 ICU_CFLAGS=""
907 ICU_LIBS=""
908 enable_icu=no
909 AC_PATH_PROG(ICU_CONFIG, icu-config, no)
910 if test "x$ICU_CONFIG" = "xno" -o ! -x "$ICU_CONFIG"; then
911         AC_MSG_WARN([Only invariant locale available; install ICU for I18N support])
912         enable_icu="no, if you want full i18n support download it from: http://oss.software.ibm.com/icu/index.html"
913 else
914         enable_icu="yes. Version: `$ICU_CONFIG --version`"
915         AC_DEFINE(HAVE_ICU)
916         ICU_CFLAGS=`$ICU_CONFIG --cppflags`
917         ICU_LIBS=`$ICU_CONFIG --ldflags`
918 fi
919 AC_SUBST(ICU_CFLAGS)
920 AC_SUBST(ICU_LIBS)
921
922 TARGET="unknown"
923 ACCESS_UNALIGNED="yes"
924
925 JIT_SUPPORTED=no
926 LIBC="libc.so.6"
927
928 jit_wanted=false
929 case "$host" in
930 #       mips-sgi-irix5.* | mips-sgi-irix6.*)
931 #               TARGET=MIPS;
932 #               ACCESS_UNALIGNED="no"
933 #               ;;
934         i*86-*-*)
935                 TARGET=X86;
936                 arch_target=x86;
937                 JIT_SUPPORTED=yes
938                 jit_wanted=true
939                 ;;
940         x86_64-*-* | amd64-*-*)
941                 TARGET=AMD64;
942                 arch_target=amd64;
943                 JIT_SUPPORTED=no
944                 ;;
945         sparc*-*-*)
946                 TARGET=SPARC;
947                 arch_target=sparc;
948                 JIT_SUPPORTED=yes
949                 ACCESS_UNALIGNED="no"
950                 jit_wanted=true
951                 ;;
952 #       alpha*-*-linux* | alpha*-*-osf*)
953 #               TARGET=ALPHA;
954 #               ACCESS_UNALIGNED="no"
955 #              ;;
956 #       ia64-*-linux* | ia64-*-hpux*)
957 #               TARGET=IA64;
958 #               arch_target=ia64;
959 #               JIT_SUPPORTED=no;
960 #               ACCESS_UNALIGNED="no";
961 #               case "$host_os" in
962 #                       linux*) LIBC="libc.so.6.1";;
963 #                       hpux*)  LIBC="libc.so.1";;
964 #               esac
965 #               ;;
966 #       m68k-*-linux*)
967 #               TARGET=M68K
968 #               ;;
969         hppa2.0w-hp-hpux11.00 | hppa64-hp-hpux11.00)
970                 TARGET=HPPA;
971                 arch_target=hppa; 
972                 ACCESS_UNALIGNED="no"
973                 ;;
974         macppc-*-openbsd* | powerpc-*-linux* | powerpc-*-openbsd* | \
975         powerpc-*-sysv* | powerpc-*-darwin*)
976                 TARGET=POWERPC;
977                 arch_target=ppc;
978                 JIT_SUPPORTED=yes
979                 ;;
980         arm-*-linux-* | armv4l-*-linux-*)
981                 TARGET=ARM;
982                 arch_target=arm;
983                 ACCESS_UNALIGNED="no"
984                 ;;
985         s390-*-linux*)
986                 TARGET=S390;
987                 arch_target=s390;
988                 ACCESS_UNALIGNED="no"
989                 ;;
990 esac
991
992 AC_ARG_WITH(jit, [  --with-jit=yes,no    If you want to build scripts that default to the JIT],[
993         jit_wanted=true
994 ])
995
996 USEJIT=false
997 if test x$JIT_SUPPORTED = xyes; then
998    if $jit_wanted; then
999       USEJIT=true
1000       jit_status="Building and using the JIT"
1001    else
1002       jit_status="Building the JIT, defaulting to the interpreter"
1003    fi
1004 else
1005    jit_status="interpreter"
1006 fi
1007
1008 AM_CONDITIONAL(USE_JIT, test x$USEJIT = xtrue)
1009
1010 libsuffix=".so"
1011
1012 case "$host" in
1013      powerpc-*-darwin*)
1014         libsuffix=".dylib"
1015         ;;
1016 esac
1017 AC_SUBST(libsuffix)
1018
1019 if test ${TARGET} = ARM; then
1020         dnl ******************************************
1021         dnl *** Check to see what FPU is available ***
1022         dnl ******************************************
1023         AC_MSG_CHECKING(which FPU to use)
1024
1025         AC_TRY_COMPILE([], [
1026                 __asm__ ("ldfd f0, [r0]");
1027                 ], fpu=FPA, [
1028                         AC_TRY_COMPILE([], [
1029                                 __asm__ ("fldd d0, [r0]");
1030                         ], fpu=VFP, fpu=NONE)
1031                 ])
1032
1033         AC_MSG_RESULT($fpu)
1034         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu"
1035         unset fpu
1036 fi
1037
1038 if test ${TARGET} = unknown; then
1039         CPPFLAGS="$CPPFLAGS -DNO_PORT"
1040         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
1041 fi
1042
1043 if test ${ACCESS_UNALIGNED} = no; then
1044         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
1045 fi
1046
1047 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
1048 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
1049 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
1050 AM_CONDITIONAL(X86, test x$TARGET = xX86)
1051 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
1052 AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
1053 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
1054 AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
1055 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
1056 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
1057 AM_CONDITIONAL(S390, test x$TARGET = xS390)
1058 AM_CONDITIONAL(HPPA, test x$TARGET = xHPPA)
1059
1060 AM_CONDITIONAL(JIT_SUPPORTED, test x$JIT_SUPPORTED = xyes)
1061
1062 AC_SUBST(LIBC)
1063
1064 AC_SUBST(arch_target)
1065 AC_SUBST(CFLAGS)
1066 AC_SUBST(CPPFLAGS)
1067 AC_SUBST(LDFLAGS)
1068
1069 AC_OUTPUT([
1070 Makefile
1071 mint.pc
1072 mono.pc
1073 mono/Makefile
1074 mono/utils/Makefile
1075 mono/metadata/Makefile
1076 mono/dis/Makefile
1077 mono/cil/Makefile
1078 mono/arch/Makefile
1079 mono/os/Makefile
1080 mono/os/win32/Makefile
1081 mono/os/unix/Makefile
1082 mono/arch/x86/Makefile
1083 mono/arch/amd64/Makefile
1084 mono/arch/hppa/Makefile
1085 mono/arch/ppc/Makefile
1086 mono/arch/sparc/Makefile
1087 mono/arch/s390/Makefile
1088 mono/arch/arm/Makefile
1089 mono/arch/alpha/Makefile
1090 mono/interpreter/Makefile
1091 mono/tests/Makefile
1092 mono/tests/tests-config
1093 mono/benchmark/Makefile
1094 mono/monoburg/Makefile
1095 mono/monograph/Makefile
1096 mono/io-layer/Makefile
1097 mono/handles/Makefile
1098 mono/mini/Makefile
1099 mono/profiler/Makefile
1100 runtime/Makefile
1101 scripts/Makefile
1102 man/Makefile
1103 web/Makefile
1104 docs/Makefile
1105 data/Makefile
1106 samples/Makefile
1107 support/Makefile
1108 data/config
1109 mono.spec
1110 ])
1111
1112 echo "
1113
1114         GC:          $gc
1115         ICU:         $enable_icu
1116         NPTL:        $with_nptl
1117         SIGALTSTACK: $with_sigaltstack
1118         Engine:      $jit_status
1119         
1120 "