Merge pull request #1436 from esdrubal/readerwriterlockslim
[mono.git] / configure.ac
1 # Process this file with autoconf to produce a configure script.
2 #AC_PREREQ([2.62])
3
4 AC_INIT(mono, [3.99.0],
5         [http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono])
6
7 AC_CONFIG_SRCDIR([README.md])
8 AC_CONFIG_MACRO_DIR([m4])
9 AC_CANONICAL_SYSTEM
10 AC_CANONICAL_HOST
11
12 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
13 # The extra brackets are to foil regex-based scans.
14 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
15
16 AM_INIT_AUTOMAKE([1.9 dist-bzip2 tar-ustar no-dist-gzip foreign subdir-objects])
17 AC_CONFIG_HEADERS([config.h])
18 AM_MAINTAINER_MODE
19
20 API_VER=2.0
21 AC_SUBST(API_VER)
22
23 AC_PROG_LN_S
24
25 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
26
27 case $host_os in
28 *cygwin* )
29                  echo "Run configure using ./configure --host=i686-pc-mingw32"
30                  exit 1
31 esac
32
33 # In case of cygwin, override LN_S, irrespective of what it determines.
34 # The build uses cygwin, but the actual runtime doesn't.
35 case $host_os in
36 *cygwin* ) LN_S='cp -p';;
37 esac
38
39 #
40 # libgc defaults
41 #
42 libgc_configure_args=
43
44 if test -d $srcdir/libgc ; then
45   libgc_default=included
46 else
47   libgc_default=boehm
48 fi
49
50 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
51 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
52 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
53 CFLAGS_FOR_LIBGC=$CFLAGS
54 CPPFLAGS_FOR_EGLIB=$CPPFLAGS
55 CFLAGS_FOR_EGLIB=$CFLAGS
56
57 # libgc uses some deprecated APIs
58 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
59
60 #
61 # These are the flags that need to be stored in the mono.pc file for 
62 # compiling code that will embed Mono
63 #
64 libmono_cflags=""
65 libmono_ldflags=""
66 AC_SUBST(libmono_cflags)
67 AC_SUBST(libmono_ldflags)
68
69 # Variable to have relocatable .pc files (lib, or lib64)
70 reloc_libdir=`basename ${libdir}`
71 AC_SUBST(reloc_libdir)
72
73 dnl if linker handles the version script
74 no_version_script=no
75
76 # Set to yes if Unix sockets cannot be created in an anonymous namespace
77 need_link_unlink=no
78
79 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
80 extra_runtime_ldflags=""
81
82 # Thread configuration inspired by sleepycat's db
83 AC_MSG_CHECKING([host platform characteristics])
84 libgc_threads=no
85 has_dtrace=no
86 parallel_mark=yes
87 ikvm_native=yes
88
89 case "$host" in
90         powerpc*-*-linux*)
91                 # https://bugzilla.novell.com/show_bug.cgi?id=504411
92                 disable_munmap=yes
93         ;;
94 esac
95
96 host_win32=no
97 target_win32=no
98 platform_android=no
99 platform_darwin=no
100 case "$host" in
101         *-mingw*|*-*-cygwin*)
102                 AC_DEFINE(HOST_WIN32,1,[Host Platform is Win32])
103                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
104                 AC_DEFINE(PLATFORM_NO_SYMLINKS,1,[This platform does not support symlinks])
105                 host_win32=yes
106                 mono_cv_clang=no
107                 if test "x$cross_compiling" = "xno"; then
108                         target_win32=yes
109                         if test "x$host" == "x$build" -a "x$host" == "x$target"; then
110                                 AC_DEFINE(TARGET_WIN32,1,[Target OS is Win32])
111                         fi
112                 else
113                         target_win32=yes
114                         AC_DEFINE(TARGET_WIN32,1,[Target OS is Win32/MinGW])
115                         AC_DEFINE(MINGW_CROSS_COMPILE,1,[Cross-compiling using MinGW])
116                 fi
117                 HOST_CC="gcc"
118                 # Windows XP SP2 is required
119                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0502 -D_WIN32_WINNT=0x0502 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
120                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi"
121                 libmono_cflags="-mms-bitfields -mwindows"
122                 libmono_ldflags="-mms-bitfields -mwindows"
123                 libdl=
124                 libgc_threads=win32
125                 libgc_default=included
126                 with_sigaltstack=no
127                 with_tls=pthread
128                 LN_S=cp
129                 # This forces libgc to use the DllMain based thread registration code on win32
130                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
131                 ;;
132         *-*-*netbsd*)
133                 host_win32=no
134                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
135                 libmono_cflags="-D_REENTRANT"
136                 LDFLAGS="$LDFLAGS -pthread"
137                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
138                 libmono_ldflags="-pthread"
139                 need_link_unlink=yes
140                 libdl="-ldl"
141                 libgc_threads=pthreads
142                 with_sigaltstack=no
143                 use_sigposix=yes
144                 ;;
145         *-*-kfreebsd*-gnu)
146                 host_win32=no
147                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
148                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
149                 libmono_ldflags="-lpthread -pthread"
150                 libdl="-ldl"
151                 libgc_threads=pthreads
152                 need_link_unlink=yes
153                 with_sigaltstack=no
154                 use_sigposix=yes
155                 ;;
156         *-*-*freebsd*)
157                 host_win32=no
158                 if test "x$PTHREAD_CFLAGS" = "x"; then
159                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
160                         libmono_cflags=
161                 else
162                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
163                         libmono_cflags="$PTHREAD_CFLAGS"
164                 fi
165                 if test "x$PTHREAD_LIBS" = "x"; then
166                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
167                         libmono_ldflags="-pthread"
168                 else
169                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
170                         libmono_ldflags="$PTHREAD_LIBS"
171                 fi
172                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
173                 need_link_unlink=yes
174                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
175                 libdl=
176                 libgc_threads=pthreads
177                 use_sigposix=yes
178                 has_dtrace=yes
179                 ;;
180         *-*-*openbsd*)
181                 host_win32=no
182                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DPLATFORM_BSD -D_REENTRANT -DUSE_MMAP"
183                 if test "x$disable_munmap" != "xyes"; then
184                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
185                 fi
186                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
187                 LDFLAGS="$LDFLAGS -pthread"
188                 need_link_unlink=yes
189                 AC_DEFINE(PTHREAD_POINTER_ID)
190                 libdl=
191                 libgc_default=boehm
192                 libgc_threads=pthreads
193                 with_sigaltstack=no
194                 use_sigposix=yes
195                 ;;
196         *-*-linux-android*)
197                 host_win32=no
198                 platform_android=yes
199                 AC_DEFINE(PLATFORM_ANDROID,1,[Targeting the Android platform])
200                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
201
202                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
203                 if test "x$disable_munmap" != "xyes"; then
204                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
205                 fi
206                 libmono_cflags="-D_REENTRANT"
207                 libdl="-ldl"
208                 libgc_threads=pthreads
209                 use_sigposix=yes
210
211                 with_tls=pthread
212                 with_sigaltstack=no
213                 with_static_mono=no
214
215                 # Android doesn't support boehm, as it's missing <link.h>
216                 support_boehm=no
217                 with_gc=sgen
218
219                 # isinf(3) requires -lm; see isinf check below
220                 LDFLAGS="$LDFLAGS -lm"
221
222                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
223                 # PAGE_SIZE; breaks mono/io-layer/collection.c
224                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
225                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
226                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
227
228                 # The configure check can't detect this
229                 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
230
231                 # to bypass the underscore linker check, can't work when cross-compiling
232                 mono_cv_uscore=yes
233                 mono_cv_clang=no
234                 ;;
235         *-*-linux*)
236                 host_win32=no
237                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
238                 if test "x$disable_munmap" != "xyes"; then
239                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
240                 fi
241                 libmono_cflags="-D_REENTRANT"
242                 libdl="-ldl"
243                 libgc_threads=pthreads
244                 use_sigposix=yes
245                 if test "x$cross_compiling" != "xno"; then
246                         # to bypass the underscore linker check, not
247                         # available during cross-compilation
248                         mono_cv_uscore=no
249                 fi
250                 case "$host" in
251                 aarch64-*)
252                         support_boehm=no
253                         with_gc=sgen
254                         ;;
255                 esac
256                 ;;
257         *-*-nacl*)
258                 host_win32=no
259                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
260                 if test "x$disable_munmap" != "xyes"; then
261                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
262                 fi
263                 libmono_cflags="-D_REENTRANT"
264                 libdl=
265                 libgc_threads=pthreads
266                 libgc_default=boehm
267                 use_sigposix=yes
268                 ikvm_native=no
269                 AC_DEFINE(DISABLE_SOCKETS,1,[Disable sockets support])
270                 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
271                 ;;
272         *-*-hpux*)
273                 host_win32=no
274                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
275                 # +ESdbgasm only valid on bundled cc on RISC
276                 # silently ignored for ia64
277                 if test $GCC != "yes"; then
278                         CFLAGS="$CFLAGS +ESdbgasm"
279                         # Arrange for run-time dereferencing of null
280                         # pointers to produce a SIGSEGV signal.
281                         LDFLAGS="$LDFLAGS -z"
282                 fi
283                 CFLAGS="$CFLAGS +ESdbgasm"
284                 LDFLAGS="$LDFLAGS -z"
285                 libmono_cflags="-D_REENTRANT"
286                 libmono_ldflags="-lpthread"
287                 libgc_threads=pthreads
288                 need_link_unlink=yes
289                 use_sigposix=yes
290                 ;;
291         *-*-solaris*)
292                 host_win32=no
293                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
294                 need_link_unlink=yes
295                 libmono_cflags="-D_REENTRANT"
296                 libgc_threads=pthreads
297                 # This doesn't seem to work on solaris/x86, but the configure test runs
298                 with_tls=pthread
299                 has_dtrace=yes
300                 use_sigposix=yes
301                 enable_solaris_tar_check=yes
302                 ;;
303         *-*-darwin*)
304                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
305                 host_win32=no
306                 platform_darwin=yes
307                 target_mach=yes
308                 CPPFLAGS="$CPPFLAGS -no-cpp-precomp -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
309                 CPPFLAGS="$CPPFLAGS -DGetCurrentProcess=MonoGetCurrentProcess -DGetCurrentThread=MonoGetCurrentThread -DCreateEvent=MonoCreateEvent"
310                 libmono_cflags="-D_THREAD_SAFE"
311                 need_link_unlink=yes
312                 AC_DEFINE(PTHREAD_POINTER_ID)
313                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
314                 no_version_script=yes
315                 libdl=
316                 libgc_threads=pthreads
317                 has_dtrace=yes
318                 if test "x$cross_compiling" = "xyes"; then
319                         has_broken_apple_cpp=yes
320                 fi
321                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
322                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
323                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
324                 case "$host" in
325                         dnl Snow Leopard and newer config.guess reports as this
326                         i*86-*-darwin*)
327                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
328                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
329                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
330                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
331                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
332                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
333                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
334                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
335                                 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_CPPFLAGS"
336                                 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
337                                 ;;
338                         x*64-*-darwin*)
339                                 ;;
340                         arm*-darwin*)
341                                 has_dtrace=no
342                                 ;;                      
343                 esac
344                 ;;
345         *-*-haiku*)
346                 host_win32=no
347                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
348                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
349                 libdl=
350                 LIBS="$LIBS -lnetwork"
351                 need_link_unlink=yes
352                 AC_DEFINE(PTHREAD_POINTER_ID)
353                 libgc_threads=pthreads
354                 use_sigposix=yes
355                 ;;
356         *)
357                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
358                 host_win32=no
359                 libdl="-ldl"
360                 ;;
361 esac
362 AC_MSG_RESULT(ok)
363
364 if test x$need_link_unlink = xyes; then
365    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
366 fi
367
368 AC_SUBST(extra_runtime_ldflags)
369 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
370 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
371 AM_CONDITIONAL(PLATFORM_GNU, echo x$target_os | grep -q -- -gnu)
372 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
373 AM_CONDITIONAL(PLATFORM_DARWIN, test x$platform_darwin = xyes)
374 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
375 AM_CONDITIONAL(PLATFORM_ANDROID, test x$platform_android = xyes)
376
377 AC_CHECK_TOOL(CC, gcc, gcc)
378 AC_PROG_CC
379 AC_CHECK_TOOL(CXX, g++, g++)
380 AC_PROG_CXX
381 AM_PROG_AS
382 AC_PROG_INSTALL
383 AC_PROG_AWK
384 AM_PROG_CC_C_O
385 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
386 : ${CCAS='$(CC)'}
387 # Set ASFLAGS if not already set.
388 : ${CCASFLAGS='$(CFLAGS)'}
389 AC_SUBST(CCAS)
390 AC_SUBST(CCASFLAGS)
391
392 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
393 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
394 if test "x$CXX" = "xg++"; then
395         if test "x$GXX" != "xyes"; then
396                 # automake/libtool is so broken, it requires g++ even if the c++ sources
397                 # are inside automake conditionals
398                 AC_MSG_ERROR([You need to install g++])
399         fi
400 fi
401
402 dnl may require a specific autoconf version
403 dnl AC_PROG_CC_FOR_BUILD
404 dnl CC_FOR_BUILD not automatically detected
405 CC_FOR_BUILD=$CC
406 CFLAGS_FOR_BUILD=$CFLAGS
407 BUILD_EXEEXT=
408 if test "x$cross_compiling" = "xyes"; then
409         CC_FOR_BUILD=cc
410         CFLAGS_FOR_BUILD=
411         BUILD_EXEEXT=""
412 fi
413 AC_SUBST(CC_FOR_BUILD)
414 AC_SUBST(CFLAGS_FOR_BUILD)
415 AC_SUBST(HOST_CC)
416 AC_SUBST(BUILD_EXEEXT)
417
418 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
419 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
420
421 # Set STDC_HEADERS
422 AC_HEADER_STDC
423 AC_LIBTOOL_WIN32_DLL
424 # This causes monodis to not link correctly
425 #AC_DISABLE_FAST_INSTALL
426 AM_PROG_LIBTOOL
427 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
428 DOLT
429
430 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
431 AC_SUBST(export_ldflags)
432
433 # Test whenever ld supports -version-script
434 AC_PROG_LD
435 AC_PROG_LD_GNU
436 if test "x$lt_cv_prog_gnu_ld" = "xno"; then
437    no_version_script=yes
438 fi
439
440 AM_ICONV()
441
442 AM_CONDITIONAL(NO_VERSION_SCRIPT, test x$no_version_script = xyes)
443
444 AC_CHECK_HEADERS(sys/filio.h sys/sockio.h netdb.h utime.h sys/utime.h semaphore.h sys/un.h linux/rtc.h sys/syscall.h sys/mkdev.h sys/uio.h sys/param.h libproc.h)
445 AC_CHECK_HEADERS(sys/param.h sys/socket.h sys/ipc.h sys/sem.h sys/utsname.h alloca.h ucontext.h pwd.h sys/select.h netinet/tcp.h netinet/in.h unistd.h sys/types.h link.h asm/sigcontext.h sys/inotify.h)
446 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
447                   [], [], [#include <stddef.h>
448                   #include <sys/socket.h>
449                   #include <linux/socket.h>])
450
451 AC_CHECK_HEADERS(sys/user.h, [], [],
452 [
453 #ifdef HAVE_SYS_PARAM_H
454 # include <sys/param.h>
455 #endif
456 ])
457
458 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
459 if test x$have_zlib = xyes; then
460    AC_TRY_COMPILE([#include <zlib.h>], [
461    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
462    return 0;
463    #else
464    #error No good zlib found
465    #endif
466    ],[
467         AC_MSG_RESULT(Using system zlib)
468         zlib_msg="system zlib"
469         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
470    ],[
471         AC_MSG_RESULT(Using embedded zlib)
472         have_zlib=no
473         zlib_msg="bundled zlib"
474    ])
475 fi
476
477 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
478 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
479
480 # for mono/metadata/debug-symfile.c
481 AC_CHECK_HEADERS(elf.h)
482
483 # for support
484 AC_CHECK_HEADERS(poll.h)
485 AC_CHECK_HEADERS(sys/poll.h)
486 AC_CHECK_HEADERS(sys/wait.h)
487 AC_CHECK_HEADERS(grp.h)
488 AC_CHECK_HEADERS(syslog.h)
489
490 # for mono/dis
491 AC_CHECK_HEADERS(wchar.h)
492 AC_CHECK_HEADERS(ieeefp.h)
493 AC_MSG_CHECKING(for isinf)
494 AC_TRY_LINK([#include <math.h>], [
495         int f = isinf (1.0);
496 ], [
497         AC_MSG_RESULT(yes)
498         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
499 ], [
500         # We'll have to use signals
501         AC_MSG_RESULT(no)
502 ])
503 # mingw
504 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
505         AC_TRY_LINK([#include <math.h>], 
506         [ _finite(0.0); ], 
507         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
508         AC_MSG_RESULT(no)))
509
510 # for Linux statfs support
511 AC_CHECK_HEADERS(linux/magic.h)
512
513 # not 64 bit clean in cross-compile
514 AC_CHECK_SIZEOF(void *, 4)
515
516 AC_CACHE_CHECK([for clang],
517         mono_cv_clang,[
518         AC_TRY_COMPILE([], [
519                 #ifdef __clang__
520                 #else
521                 #error "FAILED"
522                 #endif
523                 return 0;
524         ],
525         [mono_cv_clang=yes],
526         [mono_cv_clang=no],
527         [])
528 ])
529
530 WARN=''
531 if test x"$GCC" = xyes; then
532         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value'
533                 # The runtime code does not respect ANSI C strict aliasing rules
534                 CFLAGS="$CFLAGS -fno-strict-aliasing"
535
536                 # We rely on signed overflow to behave
537                 CFLAGS="$CFLAGS -fwrapv"
538
539                 ORIG_CFLAGS=$CFLAGS
540                 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
541                 AC_MSG_CHECKING(for -Wdeclaration-after-statement option to gcc)
542                 AC_TRY_COMPILE([],[
543                                 return 0;
544                 ], [
545                    AC_MSG_RESULT(yes)
546                 ], [
547                    AC_MSG_RESULT(no)
548                    CFLAGS=$ORIG_CFLAGS
549                 ])
550
551                 ORIG_CFLAGS=$CFLAGS
552                 # Check for the normal version, since gcc ignores unknown -Wno options
553                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
554                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
555                 AC_TRY_COMPILE([],[
556                                 return 0;
557                 ], [
558                    AC_MSG_RESULT(yes)
559                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
560                 ], [
561                    AC_MSG_RESULT(no)
562                    CFLAGS=$ORIG_CFLAGS
563                 ])
564
565                 if test "x$mono_cv_clang" = "xyes"; then
566                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
567                    WARN="$WARN -Qunused-arguments"
568                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign"
569                 fi
570 else
571         # The Sun Forte compiler complains about inline functions that access static variables
572         # so disable all inlining.
573         case "$host" in
574         *-*-solaris*)
575                 CFLAGS="$CFLAGS -Dinline="
576                 ;;
577         esac
578 fi
579 CFLAGS="$CFLAGS -g $WARN"
580 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
581 CPPFLAGS="$CPPFLAGS -g $WARN"
582
583 # Where's the 'mcs' source tree?
584 if test -d $srcdir/mcs; then
585   mcsdir=mcs
586 else
587   mcsdir=../mcs
588 fi
589
590 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
591         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
592                 mcsdir=$with_mcs_path
593         fi
594 )
595
596 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
597
598 #
599 # A sanity check to catch cases where the package was unpacked
600 # with an ancient tar program (Solaris)
601 #
602 AC_ARG_ENABLE(solaris-tar-check,
603 [  --disable-solaris-tar-check    disable solaris tar check],
604    do_solaris_tar_check=no, do_solaris_tar_check=yes)
605
606 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
607         AC_MSG_CHECKING(integrity of package)
608         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
609         then
610                 AC_MSG_RESULT(ok)
611         else
612                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
613                 AC_MSG_ERROR([$errorm])
614         fi
615 fi
616
617 if test "x$with_mcs_path" != "x"; then
618 mcs_topdir=$(cd "$mcsdir" && pwd)
619 mcs_topdir_from_srcdir=$mcs_topdir
620 else
621 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
622 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
623 fi
624
625 # Convert mcs_topdir* paths to Windows syntax.
626 if test x$cross_compiling$host_win32 = xnoyes; then
627   mcs_topdir=$(cygpath -m $mcs_topdir)
628   case $mcs_topdir_from_srcdir in
629     /cygdrive/*)
630         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
631         ;;
632   esac
633 fi
634
635 AC_SUBST([mcs_topdir])
636 AC_SUBST([mcs_topdir_from_srcdir])
637
638 # Where's the 'olive' source tree?
639 if test -d $srcdir/olive; then
640   olivedir=olive
641 else
642   olivedir=../olive
643 fi
644
645 if test -d $srcdir/$olivedir; then
646 olive_topdir='$(top_srcdir)/'$olivedir
647 fi
648
649 # gettext: prepare the translation directories. 
650 # we do not configure the full gettext, as we consume it dynamically from C#
651 AM_PO_SUBDIRS
652
653 if test "x$USE_NLS" = "xyes"; then
654    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
655
656    if test "x$HAVE_MSGFMT" = "xno"; then
657           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
658    fi
659 fi
660
661 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
662
663 pkg_config_path=
664 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
665         if test x$with_crosspkgdir = "x"; then
666                 if test -s $PKG_CONFIG_PATH; then
667                         pkg_config_path=$PKG_CONFIG_PATH
668                 fi
669         else
670                 pkg_config_path=$with_crosspkgdir
671                 PKG_CONFIG_PATH=$pkg_config_path
672                 export PKG_CONFIG_PATH
673         fi
674 )
675
676 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
677 if test x$werror_flag = xyes; then
678         WERROR_CFLAGS="-Werror"
679 fi
680 AC_SUBST([WERROR_CFLAGS])
681
682 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
683 AC_CONFIG_SUBDIRS(eglib)
684
685 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
686 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
687 BUILD_GLIB_CFLAGS="$GLIB_CFLAGS"
688 BUILD_GLIB_LIBS="$GLIB_LIBS"
689 GMODULE_CFLAGS="$GLIB_CFLAGS"
690 GMODULE_LIBS="$GLIB_LIBS"
691   
692 AC_SUBST(GLIB_CFLAGS)
693 AC_SUBST(GLIB_LIBS)
694 AC_SUBST(GMODULE_CFLAGS)
695 AC_SUBST(GMODULE_LIBS)
696 AC_SUBST(BUILD_GLIB_CFLAGS)
697 AC_SUBST(BUILD_GLIB_LIBS)
698
699 # Enable support for fast thread-local storage
700 # Some systems have broken support, so we allow to disable it.
701 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
702
703 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
704 # This does not work on some platforms (bug #55253)
705 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
706
707 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
708 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
709 # Same as --with-shared_mono=no
710 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
711
712 if test "x$enable_static" = "xno"; then
713    with_static_mono=no
714 fi
715
716 if test "x$enable_shared" = "xno"; then
717    with_shared_mono=no
718 fi
719
720 if test "x$enable_libraries" = "xno"; then
721    with_shared_mono=no
722 fi
723
724 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
725
726 case $host in
727 *nacl* ) with_shared_mono=yes;;
728 esac
729
730 if test "x$host_win32" = "xyes"; then
731    # Boehm GC requires the runtime to be in its own dll
732    with_static_mono=no
733 fi
734
735 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
736 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
737 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
738
739 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
740 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
741         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
742         ORIG_CFLAGS=$CFLAGS
743         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
744         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
745         AC_TRY_COMPILE([], [
746                 return 0;
747         ], [
748            AC_MSG_RESULT(yes)
749            # Pass it to libgc as well
750            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
751         ], [
752            AC_MSG_RESULT(no)
753            CFLAGS=$ORIG_CFLAGS
754         ])
755 fi
756
757 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
758
759 if test x$enable_small_config = xyes; then
760         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
761         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
762 fi
763
764 AC_ARG_ENABLE(system-aot, [  --enable-system-aot  Enable the Ahead-Of-Time compilation of system assemblies during the build (on by default on some platforms)], enable_system_aot=$enableval, enable_system_aot=default)
765
766 DISABLED_FEATURES=none
767
768 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
769      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
770      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
771          security, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying, shared_handles.],
772 [
773         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
774                 eval "mono_feature_disable_$feature='yes'"
775         done
776         DISABLED_FEATURES=$enable_minimal
777         disabled="Disabled:      $enable_minimal"
778 ],[])
779
780 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
781
782 if test "x$mono_feature_disable_aot" = "xyes"; then
783         AC_DEFINE(DISABLE_AOT_COMPILER, 1, [Disable AOT Compiler])
784         AC_MSG_NOTICE([Disabled AOT compiler])
785 fi
786
787 if test "x$mono_feature_disable_profiler" = "xyes"; then
788         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
789         AC_MSG_NOTICE([Disabled support for the profiler])
790 fi
791 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
792
793 if test "x$mono_feature_disable_decimal" = "xyes"; then
794         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
795         AC_MSG_NOTICE([Disabled support for decimal])
796 fi
797
798 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
799         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
800         AC_MSG_NOTICE([Disabled support for P/Invoke])
801 fi
802
803 if test "x$mono_feature_disable_debug" = "xyes"; then
804         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
805         AC_MSG_NOTICE([Disabled support for runtime debugging])
806 fi
807
808 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
809         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
810         mono_feature_disable_reflection_emit_save=yes
811         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
812 fi
813
814 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
815         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
816         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
817 fi
818
819 if test "x$mono_feature_disable_large_code" = "xyes"; then
820         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
821         AC_MSG_NOTICE([Disabled support for large assemblies])
822 fi
823
824 if test "x$mono_feature_disable_logging" = "xyes"; then
825         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
826         AC_MSG_NOTICE([Disabled support for logging])
827 fi
828
829 if test "x$mono_feature_disable_com" = "xyes"; then
830         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
831         AC_MSG_NOTICE([Disabled COM support])
832 fi
833
834 if test "x$mono_feature_disable_ssa" = "xyes"; then
835         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
836         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
837 fi
838
839 if test "x$mono_feature_disable_generics" = "xyes"; then
840         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
841         AC_MSG_NOTICE([Disabled Generics Support])
842 fi
843
844 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
845         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
846         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
847 fi
848
849 if test "x$mono_feature_disable_portability" = "xyes"; then
850         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
851         AC_MSG_NOTICE([Disabled IO Portability layer])
852 fi
853
854 if test "x$mono_feature_disable_attach" = "xyes"; then
855         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
856         AC_MSG_NOTICE([Disabled agent attach])
857 fi
858
859 if test "x$mono_feature_disable_full_messages" = "xyes"; then
860         AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
861         AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
862 fi
863
864 if test "x$mono_feature_disable_verifier" = "xyes"; then
865         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
866         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
867 fi
868
869 if test "x$mono_feature_disable_jit" = "xyes"; then
870         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
871         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
872 fi
873
874 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
875
876 if test "x$mono_feature_disable_simd" = "xyes"; then
877         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
878         AC_MSG_NOTICE([Disabled SIMD support])
879 fi
880
881 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
882         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
883         AC_MSG_NOTICE([Disabled Soft Debugger.])
884 fi
885
886 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
887         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
888         AC_MSG_NOTICE([Disabled Performance Counters.])
889 fi
890 if test "x$mono_feature_disable_normalization" = "xyes"; then
891         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
892         AC_MSG_NOTICE([Disabled String normalization support.])
893 fi
894
895 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
896         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
897         AC_MSG_NOTICE([Disabled Assembly remapping.])
898 fi
899
900 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
901         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
902         AC_MSG_NOTICE([Disabled Shared perfcounters.])
903 fi
904
905 if test "x$mono_feature_disable_appdomains" = "xyes"; then
906         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
907         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
908 fi
909
910 if test "x$mono_feature_disable_remoting" = "xyes"; then
911         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
912         AC_MSG_NOTICE([Disabled remoting])
913 fi
914
915 if test "x$mono_feature_disable_security" = "xyes"; then
916         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
917         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
918 fi
919
920 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
921         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
922         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
923 fi
924
925 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
926         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
927         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
928 fi
929
930 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
931         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
932         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
933 fi
934
935 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
936         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
937         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
938 fi
939
940 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
941         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
942         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
943 fi
944
945 if test "x$mono_feature_disable_shared_handles" = "xyes"; then
946         AC_DEFINE(DISABLE_SHARED_HANDLES, 1, [Disable inter-process shared handles])
947         AC_SUBST(DISABLE_SHARED_HANDLES)
948 fi
949
950 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
951 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
952
953 has_extension_module=no
954 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
955 [
956         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
957                 if test x$extension = xdefault ; then
958                         has_extension_module=yes;
959                 fi
960         done
961         if test x$enable_extension_module = xyes; then
962                 has_extension_module=yes;
963         fi
964 ], [])
965
966 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
967
968 if test x$has_extension_module != xno ; then
969         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
970         AC_MSG_NOTICE([Enabling mono extension module.])
971 fi
972
973 AC_ARG_ENABLE(gsharing, [  --enable-gsharing Enable gsharing], enable_gsharing=$enableval, enable_gsharing=no)
974 if test x$enable_gsharing = xyes; then
975         AC_DEFINE(ENABLE_GSHAREDVT,1,[Gsharing])
976 fi
977
978 AC_ARG_ENABLE(native-types, [  --enable-native-types Enable native types], enable_native_types=$enableval, enable_native_types=no)
979 if test x$enable_native_types = xyes; then
980         AC_DEFINE(MONO_NATIVE_TYPES,1,[native types])
981 fi
982
983 AC_MSG_CHECKING(for visibility __attribute__)
984 AC_COMPILE_IFELSE([
985         AC_LANG_SOURCE([[
986                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
987                 int main () { doit (); return 0; }
988         ]])
989 ], [
990    have_visibility_hidden=yes
991    AC_MSG_RESULT(yes)
992 ], [
993    have_visibility_hidden=no
994    AC_MSG_RESULT(no)
995 ])
996
997 AC_MSG_CHECKING(for deprecated __attribute__)
998 AC_TRY_COMPILE([
999      int doit (void) __attribute__ ((deprecated));
1000      int doit (void) { return 0; }
1001 ], [
1002         return 0;
1003 ], [
1004    have_deprecated=yes
1005    AC_MSG_RESULT(yes)
1006 ], [
1007    have_deprecated=no
1008    AC_MSG_RESULT(no)
1009 ])
1010
1011 dnl
1012 dnl Boehm GC configuration
1013 dnl
1014
1015 AC_ARG_WITH(libgc,   [  --with-gc=boehm,included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=$libgc_default])
1016
1017 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1018 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1019
1020 AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1021 if test x$enable_parallel_mark = xyes; then
1022         libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1023 fi
1024
1025 gc_headers=no
1026 gc_msg=""
1027 use_included_gc=no
1028 LIBGC_CPPFLAGS=
1029 LIBGC_LIBS=
1030 LIBGC_STATIC_LIBS=
1031 libgc_dir=
1032 case "x$libgc" in
1033         xboehm|xbohem|xyes)
1034                 AC_CHECK_HEADERS(gc.h gc/gc.h, gc_headers=yes)
1035                 AC_CHECK_LIB(gc, GC_malloc, found_boehm="yes",,$libdl)
1036
1037                 if test "x$found_boehm" != "xyes"; then
1038                         AC_MSG_ERROR("GC requested but libgc not found! Install libgc or run configure with --with-gc=none.")
1039                 fi
1040                 if test "x$gc_headers" != "xyes"; then
1041                         AC_MSG_ERROR("GC requested but header files not found! You may need to install them by hand.")
1042                 fi
1043
1044                 LIBGC_LIBS="-lgc $libdl"
1045                 LIBGC_STATIC_LIBS="$LIBGC_LIBS"
1046                 libmono_ldflags="$libmono_ldflags -lgc"
1047                 BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1048
1049                 # AC_CHECK_FUNCS does not work for some reason...
1050                 AC_CHECK_LIB(gc, GC_gcj_malloc, found_gcj_malloc="yes",,$libdl)
1051                 if test "x$found_gcj_malloc" = "xyes"; then
1052                         BOEHM_DEFINES="-DHAVE_GC_GCJ_MALLOC $BOEHM_DEFINES"
1053                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "System Boehm (with typed GC)", [GC description])
1054                         gc_msg="System Boehm with typed GC"
1055                 else
1056                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "System Boehm (no typed GC)", [GC description])
1057                         gc_msg="System Boehm (without typed GC)"
1058                 fi
1059                 AC_CHECK_LIB(gc, GC_enable, found_gc_enable="yes",,$libdl)
1060                 if test "x$found_gc_enable" = "xyes"; then
1061                         BOEHM_DEFINES="-DHAVE_GC_ENABLE $BOEHM_DEFINES"
1062                 fi
1063
1064                 # check whether we need to explicitly allow
1065                 # thread registering
1066                 AC_CHECK_LIB(gc, GC_allow_register_threads, found_allow_register_threads="yes",,$libdl)
1067                 if test "x$found_allow_register_threads" = "xyes"; then
1068                    AC_DEFINE(HAVE_GC_ALLOW_REGISTER_THREADS, 1, [GC requires thread registration])
1069                 fi
1070                 ;;
1071
1072         xincluded)
1073                 use_included_gc=yes
1074                 if test "x$support_boehm" = "xyes"; then
1075                         libgc_dir=libgc
1076                 fi
1077
1078                 LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1079                 LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1080                 LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1081
1082                 BOEHM_DEFINES="-DHAVE_BOEHM_GC -DHAVE_GC_H -DUSE_INCLUDED_LIBGC -DHAVE_GC_GCJ_MALLOC -DHAVE_GC_ENABLE"
1083
1084                 if test x$target_win32 = xyes; then
1085                         BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1086                         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1087                 fi
1088
1089                 gc_msg="Included Boehm GC with typed GC"
1090                 if test x$enable_parallel_mark = xyes; then
1091                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1092                         gc_msg="$gc_msg and parallel mark"
1093                 else
1094                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1095                 fi
1096                 ;;
1097
1098         xsgen)
1099                 AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1100                 ;;
1101
1102         xnone)
1103                 AC_MSG_WARN("Compiling mono without GC.")
1104                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1105                 AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1106                 gc_msg="none"
1107                 ;;
1108         *)
1109                 AC_MSG_ERROR([Invalid argument to --with-gc.])
1110                 ;;
1111 esac
1112
1113 AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1114 if test "x$large_heap" = "xyes"; then
1115    CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1116 fi
1117
1118 AM_CONDITIONAL(INCLUDED_LIBGC, test x$use_included_gc = xyes)
1119 AC_SUBST(LIBGC_CPPFLAGS)
1120 AC_SUBST(LIBGC_LIBS)
1121 AC_SUBST(LIBGC_STATIC_LIBS)
1122 AC_SUBST(libgc_dir)
1123 AC_SUBST(BOEHM_DEFINES)
1124
1125 dnl
1126 dnl End of Boehm GC Configuration
1127 dnl
1128
1129 dnl *************************************
1130 dnl *** Checks for zero length arrays ***
1131 dnl *************************************
1132 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1133 AC_TRY_COMPILE([
1134         struct s {
1135                 int  length;
1136                 char data [0];
1137         };
1138 ], [], [
1139         AC_MSG_RESULT(yes)
1140         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1141 ], [
1142         AC_MSG_RESULT(no)
1143         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1144 ])
1145
1146 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1147
1148 if test x$target_win32 = xno; then
1149
1150         dnl hires monotonic clock support
1151         AC_SEARCH_LIBS(clock_gettime, rt)
1152
1153         dnl dynamic loader support
1154         AC_CHECK_FUNC(dlopen, DL_LIB="",
1155                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1156         )
1157         if test x$dl_support = xno; then
1158                 AC_MSG_WARN([No dynamic loading support available])
1159         else
1160                 LIBS="$LIBS $DL_LIB"
1161                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1162                 dnl from glib's configure.ac
1163                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1164                         mono_cv_uscore,[
1165                         AC_TRY_RUN([#include <dlfcn.h>
1166                         int mono_underscore_test (void) { return 42; }
1167                         int main() {
1168                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1169                           handle = dlopen ((void*)0, 0);
1170                           if (handle) {
1171                             f1 = dlsym (handle, "mono_underscore_test");
1172                             f2 = dlsym (handle, "_mono_underscore_test");
1173                           } return (!f2 || f1);
1174                         }],
1175                                 [mono_cv_uscore=yes],
1176                                 [mono_cv_uscore=no],
1177                         [])
1178                 ])
1179                 if test "x$mono_cv_uscore" = "xyes"; then
1180                         MONO_DL_NEED_USCORE=1
1181                 else
1182                         MONO_DL_NEED_USCORE=0
1183                 fi
1184                 AC_SUBST(MONO_DL_NEED_USCORE)
1185                 AC_CHECK_FUNC(dlerror)
1186         fi
1187
1188         dnl ******************************************************************
1189         dnl *** Checks for the IKVM JNI interface library                  ***
1190         dnl ******************************************************************
1191         AC_ARG_WITH(ikvm-native, [  --with-ikvm-native=yes,no      build the IKVM JNI interface library (defaults to yes)],[with_ikvm_native=$withval],[with_ikvm_native=$ikvm_native])
1192
1193         ikvm_native_dir=
1194         if test x$with_ikvm_native = xyes; then
1195                 ikvm_native_dir=ikvm-native
1196                 jdk_headers_found="IKVM Native"
1197         fi
1198
1199         AC_SUBST(ikvm_native_dir)
1200
1201         AC_CHECK_HEADERS(execinfo.h)
1202
1203         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1204
1205         AC_CHECK_FUNCS(getgrgid_r)
1206         AC_CHECK_FUNCS(getgrnam_r)
1207         AC_CHECK_FUNCS(getpwnam_r)
1208         AC_CHECK_FUNCS(getpwuid_r)
1209         AC_CHECK_FUNCS(getresuid)
1210         AC_CHECK_FUNCS(setresuid)
1211         AC_CHECK_FUNCS(kqueue)
1212         AC_CHECK_FUNCS(backtrace_symbols)
1213         AC_CHECK_FUNCS(mkstemp)
1214         AC_CHECK_FUNCS(mmap)
1215         AC_CHECK_FUNCS(madvise)
1216         AC_CHECK_FUNCS(getrusage)
1217         AC_CHECK_FUNCS(getpriority)
1218         AC_CHECK_FUNCS(setpriority)
1219         AC_CHECK_FUNCS(dl_iterate_phdr)
1220         AC_CHECK_FUNCS(dladdr)
1221         AC_CHECK_FUNCS(sysconf)
1222         AC_CHECK_FUNCS(getrlimit)
1223
1224         AC_CHECK_FUNCS(sched_setaffinity)
1225         AC_CHECK_FUNCS(sched_getcpu)
1226
1227         dnl ****************************************************************
1228         dnl *** Check for sched_setaffinity from glibc versions before   ***
1229         dnl *** 2.3.4. The older versions of the function only take 2    ***
1230         dnl *** parameters, not 3.                                       ***
1231         dnl ***                                                          ***
1232         dnl *** Because the interface change was not made in a minor     ***
1233         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1234         dnl *** won't always indicate the interface sched_affinity has.  ***
1235         dnl ****************************************************************
1236         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1237         AC_TRY_COMPILE([#include <sched.h>], [
1238             int mask = 1; 
1239             sched_setaffinity(0, &mask);
1240                         return 0;
1241         ], [
1242                 # Yes, we have it...
1243                 AC_MSG_RESULT(yes)
1244                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1245         ], [
1246                 # We have the new, three-parameter version
1247                 AC_MSG_RESULT(no)
1248         ])
1249
1250
1251         dnl ******************************************************************
1252         dnl *** Check for large file support                               ***
1253         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1254         dnl ******************************************************************
1255         
1256         # Check that off_t can represent 2**63 - 1 correctly, working around
1257         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1258         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1259         large_offt=no
1260         AC_DEFUN([LARGE_FILES], [
1261                 large_CPPFLAGS=$CPPFLAGS
1262                 CPPFLAGS="$CPPFLAGS $1"
1263                 AC_TRY_COMPILE([
1264                         #include <sys/types.h>
1265                         #include <limits.h>
1266                 ], [
1267                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1268                         #define COMPILE_TIME_ASSERT(pred) \
1269                                 switch(0){case 0:case pred:;}
1270                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1271                 ], [
1272                         AC_MSG_RESULT(ok)
1273                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1274                         large_CPPFLAGS="$large_CPPFLAGS $1"
1275                         large_offt=yes
1276                 ], [
1277                         AC_MSG_RESULT(no)
1278                 ])
1279                 CPPFLAGS=$large_CPPFLAGS
1280         ])
1281
1282         AC_MSG_CHECKING(if off_t is 64 bits wide)
1283         LARGE_FILES("")
1284         if test $large_offt = no; then
1285                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1286                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1287         fi
1288         if test $large_offt = no; then
1289                 AC_MSG_WARN([No 64 bit file size support available])
1290         fi
1291         
1292         dnl *****************************
1293         dnl *** Checks for libsocket  ***
1294         dnl *****************************
1295         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1296
1297         case "$host" in
1298                 *-*-*freebsd*)
1299                         dnl *****************************
1300                         dnl *** Checks for libinotify ***
1301                         dnl *****************************
1302                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1303         esac
1304
1305         dnl *******************************
1306         dnl *** Checks for MSG_NOSIGNAL ***
1307         dnl *******************************
1308         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1309         AC_TRY_COMPILE([#include <sys/socket.h>], [
1310                 int f = MSG_NOSIGNAL;
1311         ], [
1312                 # Yes, we have it...
1313                 AC_MSG_RESULT(yes)
1314                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1315         ], [
1316                 # We'll have to use signals
1317                 AC_MSG_RESULT(no)
1318         ])
1319
1320         dnl *****************************
1321         dnl *** Checks for IPPROTO_IP ***
1322         dnl *****************************
1323         AC_MSG_CHECKING(for IPPROTO_IP)
1324         AC_TRY_COMPILE([#include <netinet/in.h>], [
1325                 int level = IPPROTO_IP;
1326         ], [
1327                 # Yes, we have it...
1328                 AC_MSG_RESULT(yes)
1329                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1330         ], [
1331                 # We'll have to use getprotobyname
1332                 AC_MSG_RESULT(no)
1333         ])
1334
1335         dnl *******************************
1336         dnl *** Checks for IPPROTO_IPV6 ***
1337         dnl *******************************
1338         AC_MSG_CHECKING(for IPPROTO_IPV6)
1339         AC_TRY_COMPILE([#include <netinet/in.h>], [
1340                 int level = IPPROTO_IPV6;
1341         ], [
1342                 # Yes, we have it...
1343                 AC_MSG_RESULT(yes)
1344                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1345         ], [
1346                 # We'll have to use getprotobyname
1347                 AC_MSG_RESULT(no)
1348         ])
1349
1350         dnl ******************************
1351         dnl *** Checks for IPPROTO_TCP ***
1352         dnl ******************************
1353         AC_MSG_CHECKING(for IPPROTO_TCP)
1354         AC_TRY_COMPILE([#include <netinet/in.h>], [
1355                 int level = IPPROTO_TCP;
1356         ], [
1357                 # Yes, we have it...
1358                 AC_MSG_RESULT(yes)
1359                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1360         ], [
1361                 # We'll have to use getprotobyname
1362                 AC_MSG_RESULT(no)
1363         ])
1364
1365         dnl *****************************
1366         dnl *** Checks for SOL_IP     ***
1367         dnl *****************************
1368         AC_MSG_CHECKING(for SOL_IP)
1369         AC_TRY_COMPILE([#include <netdb.h>], [
1370                 int level = SOL_IP;
1371         ], [
1372                 # Yes, we have it...
1373                 AC_MSG_RESULT(yes)
1374                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1375         ], [
1376                 # We'll have to use getprotobyname
1377                 AC_MSG_RESULT(no)
1378         ])
1379
1380         dnl *****************************
1381         dnl *** Checks for SOL_IPV6     ***
1382         dnl *****************************
1383         AC_MSG_CHECKING(for SOL_IPV6)
1384         AC_TRY_COMPILE([#include <netdb.h>], [
1385                 int level = SOL_IPV6;
1386         ], [
1387                 # Yes, we have it...
1388                 AC_MSG_RESULT(yes)
1389                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1390         ], [
1391                 # We'll have to use getprotobyname
1392                 AC_MSG_RESULT(no)
1393         ])
1394
1395         dnl *****************************
1396         dnl *** Checks for SOL_TCP    ***
1397         dnl *****************************
1398         AC_MSG_CHECKING(for SOL_TCP)
1399         AC_TRY_COMPILE([#include <netdb.h>], [
1400                 int level = SOL_TCP;
1401         ], [
1402                 # Yes, we have it...
1403                 AC_MSG_RESULT(yes)
1404                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1405         ], [
1406                 # We'll have to use getprotobyname
1407                 AC_MSG_RESULT(no)
1408         ])
1409
1410         dnl *****************************
1411         dnl *** Checks for IP_PKTINFO ***
1412         dnl *****************************
1413         AC_MSG_CHECKING(for IP_PKTINFO)
1414         AC_TRY_COMPILE([#include <linux/in.h>], [
1415                 int level = IP_PKTINFO;
1416         ], [
1417                 # Yes, we have it...
1418                 AC_MSG_RESULT(yes)
1419                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1420         ], [
1421                 AC_MSG_RESULT(no)
1422         ])
1423
1424         dnl *****************************
1425         dnl *** Checks for IPV6_PKTINFO ***
1426         dnl *****************************
1427         AC_MSG_CHECKING(for IPV6_PKTINFO)
1428         AC_TRY_COMPILE([#include <netdb.h>], [
1429                 int level = IPV6_PKTINFO;
1430         ], [
1431                 # Yes, we have it...
1432                 AC_MSG_RESULT(yes)
1433                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1434         ], [
1435                 AC_MSG_RESULT(no)
1436         ])
1437
1438         dnl **********************************
1439         dnl *** Checks for IP_DONTFRAG     ***
1440         dnl **********************************
1441         AC_MSG_CHECKING(for IP_DONTFRAG)
1442         AC_TRY_COMPILE([#include <netinet/in.h>], [
1443                 int level = IP_DONTFRAG;
1444         ], [
1445                 # Yes, we have it...
1446                 AC_MSG_RESULT(yes)
1447                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1448         ], [
1449                 AC_MSG_RESULT(no)
1450         ])
1451
1452         dnl **********************************
1453         dnl *** Checks for IP_DONTFRAGMENT ***
1454         dnl **********************************
1455         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1456         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1457                 int level = IP_DONTFRAGMENT;
1458         ], [
1459                 # Yes, we have it...
1460                 AC_MSG_RESULT(yes)
1461                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1462         ], [
1463                 AC_MSG_RESULT(no)
1464         ])
1465
1466         dnl **********************************
1467         dnl *** Checks for IP_MTU_DISCOVER ***
1468         dnl **********************************
1469         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1470         AC_TRY_COMPILE([#include <linux/in.h>], [
1471                 int level = IP_MTU_DISCOVER;
1472         ], [
1473                 # Yes, we have it...
1474                 AC_MSG_RESULT(yes)
1475                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1476         ], [
1477                 AC_MSG_RESULT(no)
1478         ])
1479
1480         dnl **********************************
1481         dnl *** Checks for  IP_PMTUDISC_DO ***
1482         dnl **********************************
1483         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1484         AC_TRY_COMPILE([#include <linux/in.h>], [
1485                 int level = IP_PMTUDISC_DO;
1486         ], [
1487                 # Yes, we have it...
1488                 AC_MSG_RESULT(yes)
1489                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1490         ], [
1491                 AC_MSG_RESULT(no)
1492         ])
1493
1494         dnl *********************************
1495         dnl *** Check for struct ip_mreqn ***
1496         dnl *********************************
1497         AC_MSG_CHECKING(for struct ip_mreqn)
1498         AC_TRY_COMPILE([#include <netinet/in.h>], [
1499                 struct ip_mreqn mreq;
1500                 mreq.imr_address.s_addr = 0;
1501         ], [
1502                 # Yes, we have it...
1503                 AC_MSG_RESULT(yes)
1504                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1505         ], [
1506                 # We'll just have to try and use struct ip_mreq
1507                 AC_MSG_RESULT(no)
1508                 AC_MSG_CHECKING(for struct ip_mreq)
1509                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1510                         struct ip_mreq mreq;
1511                         mreq.imr_interface.s_addr = 0;
1512                 ], [
1513                         # Yes, we have it...
1514                         AC_MSG_RESULT(yes)
1515                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1516                 ], [
1517                         # No multicast support
1518                         AC_MSG_RESULT(no)
1519                 ])
1520         ])
1521         
1522         dnl **********************************
1523         dnl *** Check for gethostbyname2_r ***
1524         dnl **********************************
1525         AC_MSG_CHECKING(for gethostbyname2_r)
1526                 AC_TRY_LINK([#include <netdb.h>], [
1527                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1528         ], [
1529                 # Yes, we have it...
1530                 AC_MSG_RESULT(yes)
1531                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1532         ], [
1533                 AC_MSG_RESULT(no)
1534         ])
1535
1536         dnl *****************************
1537         dnl *** Checks for libnsl     ***
1538         dnl *****************************
1539         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1540
1541         AC_CHECK_FUNCS(inet_pton inet_aton)
1542
1543         dnl *****************************
1544         dnl *** Checks for libxnet    ***
1545         dnl *****************************
1546         case "${host}" in
1547                 *solaris* )
1548                         AC_MSG_CHECKING(for Solaris XPG4 support)
1549                         if test -f /usr/lib/libxnet.so; then
1550                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1551                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1552                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1553                                 LIBS="$LIBS -lxnet"
1554                                 AC_MSG_RESULT(yes)
1555                         else
1556                                 AC_MSG_RESULT(no)
1557                         fi
1558
1559                         if test "$GCC" = "yes"; then
1560                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1561                         fi
1562                 ;;
1563         esac
1564
1565         dnl *****************************
1566         dnl *** Checks for libpthread ***
1567         dnl *****************************
1568 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1569 # and libpthread does not exist
1570 #
1571         case "${host}" in
1572                 *-*-*freebsd*)
1573                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1574                 ;;
1575                 *-*-*openbsd*)
1576                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1577                 ;;
1578                 *)
1579                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1580                 ;;
1581         esac
1582         AC_CHECK_HEADERS(pthread.h)
1583         AC_CHECK_HEADERS(pthread_np.h)
1584         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1585         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1586         AC_CHECK_FUNCS(pthread_kill)
1587         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1588         AC_TRY_COMPILE([ #include <pthread.h>], [
1589                 pthread_mutexattr_t attr;
1590                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1591         ], [
1592                 AC_MSG_RESULT(ok)
1593         ], [
1594                 AC_MSG_RESULT(no)
1595                 AC_ERROR(Posix system lacks support for recursive mutexes)
1596         ])
1597         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1598         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1599         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1600
1601         dnl ***********************************
1602         dnl *** Checks for signals
1603         dnl ***********************************
1604         AC_CHECK_HEADERS(signal.h)
1605         AC_CHECK_FUNCS(sigaction)
1606
1607         dnl ***********************************
1608         dnl *** Checks for working __thread ***
1609         dnl ***********************************
1610         AC_MSG_CHECKING(for working __thread)
1611         if test "x$with_tls" != "x__thread"; then
1612                 AC_MSG_RESULT(disabled)
1613         elif test "x$cross_compiling" = "xyes"; then
1614                 AC_MSG_RESULT(cross compiling, assuming yes)
1615         else
1616                 AC_TRY_RUN([
1617                         #if defined(__APPLE__) && defined(__clang__)
1618                         #error "__thread does not currently work with clang on Mac OS X"
1619                         #endif
1620                         
1621                         #include <pthread.h>
1622                         __thread int i;
1623                         static int res1, res2;
1624
1625                         void thread_main (void *arg)
1626                         {
1627                                 i = arg;
1628                                 sleep (1);
1629                                 if (arg == 1)
1630                                         res1 = (i == arg);
1631                                 else
1632                                         res2 = (i == arg);
1633                         }
1634
1635                         int main () {
1636                                 pthread_t t1, t2;
1637
1638                                 i = 5;
1639
1640                                 pthread_create (&t1, NULL, thread_main, 1);
1641                                 pthread_create (&t2, NULL, thread_main, 2);
1642
1643                                 pthread_join (t1, NULL);
1644                                 pthread_join (t2, NULL);
1645
1646                                 return !(res1 + res2 == 2);
1647                         }
1648                 ], [
1649                                 AC_MSG_RESULT(yes)
1650                 ], [
1651                                 AC_MSG_RESULT(no)
1652                                 with_tls=pthread
1653                 ])
1654         fi
1655
1656         dnl **************************************
1657         dnl *** Checks for working sigaltstack ***
1658         dnl **************************************
1659         AC_MSG_CHECKING(for working sigaltstack)
1660         if test "x$with_sigaltstack" != "xyes"; then
1661                 AC_MSG_RESULT(disabled)
1662         elif test "x$cross_compiling" = "xyes"; then
1663                 AC_MSG_RESULT(cross compiling, assuming yes)
1664         else
1665                 AC_TRY_RUN([
1666                         #include <stdio.h>
1667                         #include <stdlib.h>
1668                         #include <unistd.h>
1669                         #include <signal.h>
1670                         #include <pthread.h>
1671                         #include <sys/wait.h>
1672                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1673                         #define SA_STACK SA_ONSTACK
1674                         #endif
1675                         static void
1676                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1677                         {
1678                                 exit (0);
1679                         }
1680
1681                         volatile char*__ptr = NULL;
1682                         static void *
1683                         loop (void *ignored)
1684                         {
1685                                 *__ptr = 0;
1686                                 return NULL;
1687                         }
1688
1689                         static void
1690                         child ()
1691                         {
1692                                 struct sigaction sa;
1693                         #ifdef __APPLE__
1694                                 stack_t sas;
1695                         #else
1696                                 struct sigaltstack sas;
1697                         #endif
1698                                 pthread_t id;
1699                                 pthread_attr_t attr;
1700
1701                                 sa.sa_sigaction = sigsegv_signal_handler;
1702                                 sigemptyset (&sa.sa_mask);
1703                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1704                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1705                                         perror ("sigaction");
1706                                         return;
1707                                 }
1708
1709                                 /* x86 darwin deliver segfaults using SIGBUS */
1710                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
1711                                         perror ("sigaction");
1712                                         return;
1713                                 }
1714                                 sas.ss_sp = malloc (SIGSTKSZ);
1715                                 sas.ss_size = SIGSTKSZ;
1716                                 sas.ss_flags = 0;
1717                                 if (sigaltstack (&sas, NULL) == -1) {
1718                                         perror ("sigaltstack");
1719                                         return;
1720                                 }
1721
1722                                 pthread_attr_init (&attr);
1723                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1724                                         printf ("pthread_create\n");
1725                                         return;
1726                                 }
1727
1728                                 sleep (100);
1729                         }
1730
1731                         int
1732                         main ()
1733                         {
1734                                 pid_t son;
1735                                 int status;
1736                                 int i;
1737
1738                                 son = fork ();
1739                                 if (son == -1) {
1740                                         return 1;
1741                                 }
1742
1743                                 if (son == 0) {
1744                                         child ();
1745                                         return 0;
1746                                 }
1747
1748                                 for (i = 0; i < 300; ++i) {
1749                                         waitpid (son, &status, WNOHANG);
1750                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
1751                                                 return 0;
1752                                         usleep (10000);
1753                                 }
1754
1755                                 kill (son, SIGKILL);
1756                                 return 1;
1757                         }
1758
1759                 ], [
1760                                 AC_MSG_RESULT(yes)
1761                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
1762                 ], [
1763                                 with_sigaltstack=no
1764                                 AC_MSG_RESULT(no)
1765                 ])
1766         fi
1767
1768         dnl ********************************
1769         dnl *** Checks for semaphore lib ***
1770         dnl ********************************
1771         # 'Real Time' functions on Solaris
1772         # posix4 on Solaris 2.6
1773         # pthread (first!) on Linux
1774         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
1775
1776         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
1777         AC_CHECK_FUNCS(shm_open)
1778
1779         dnl ********************************
1780         dnl *** Checks for timezone stuff **
1781         dnl ********************************
1782         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
1783                 AC_TRY_COMPILE([
1784                         #include <time.h>
1785                         ], [
1786                         struct tm tm;
1787                         tm.tm_gmtoff = 1;
1788                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
1789         if test $ac_cv_struct_tm_gmtoff = yes; then
1790                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
1791         else
1792                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
1793                         AC_TRY_COMPILE([
1794                                 #include <time.h>
1795                         ], [
1796                                 timezone = 1;
1797                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
1798                 if test $ac_cv_var_timezone = yes; then
1799                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
1800                 else
1801                         AC_ERROR(unable to find a way to determine timezone)
1802                 fi
1803         fi
1804
1805         dnl *********************************
1806         dnl *** Checks for math functions ***
1807         dnl *********************************
1808         AC_SEARCH_LIBS(sqrtf, m)
1809         if test "x$has_broken_apple_cpp" != "xyes"; then
1810                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
1811                         AC_TRY_LINK([#include <math.h>], 
1812                         [ finite(0.0); ], 
1813                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
1814                         AC_MSG_RESULT(no)))
1815         fi
1816         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
1817                 AC_TRY_LINK([#include <math.h>], 
1818                 [ isfinite(0.0); ], 
1819                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
1820                 AC_MSG_RESULT(no)))
1821
1822         dnl ****************************************************************
1823         dnl *** Checks for working poll() (macosx defines it but doesn't ***
1824         dnl *** have it in the library (duh))                            ***
1825         dnl ****************************************************************
1826         AC_CHECK_FUNCS(poll)
1827
1828         dnl *************************
1829         dnl *** Check for signbit ***
1830         dnl *************************
1831         AC_MSG_CHECKING(for signbit)
1832         AC_TRY_LINK([#include <math.h>], [
1833                 int s = signbit(1.0);
1834         ], [
1835                 AC_MSG_RESULT(yes)
1836                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
1837         ], [
1838                 AC_MSG_RESULT(no)
1839         ]) 
1840
1841         dnl **********************************
1842         dnl *** epoll                      ***
1843         dnl **********************************
1844         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
1845                 AC_CHECK_HEADERS(sys/epoll.h)
1846                 haveepoll=no
1847                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
1848                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
1849                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
1850                 fi
1851         fi
1852
1853         havekqueue=no
1854
1855         AC_CHECK_HEADERS(sys/event.h)
1856         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
1857
1858         dnl **************************************
1859         dnl * Darwin has a race that prevents us from using reliably:
1860         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
1861         dnl * Since kqueue is mostly used for scaling large web servers, 
1862         dnl * and very few folks run Mono on large web servers on OSX, falling
1863         dnl * back 
1864         dnl **************************************
1865         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
1866                 if test "x$platform_darwin" = "xno"; then
1867                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
1868                 fi
1869         fi
1870
1871         dnl ******************************
1872         dnl *** Checks for SIOCGIFCONF ***
1873         dnl ******************************
1874         AC_CHECK_HEADERS(sys/ioctl.h)
1875         AC_CHECK_HEADERS(net/if.h, [], [],
1876            [
1877            #ifdef HAVE_SYS_TYPES_H
1878            # include <sys/types.h>
1879            #endif
1880            #ifdef HAVE_SYS_SOCKET_H
1881            # include <sys/socket.h>
1882            #endif
1883            ])
1884         AC_MSG_CHECKING(for ifreq)
1885         AC_TRY_COMPILE([
1886                 #include <stdio.h>
1887                 #include <sys/ioctl.h>
1888                 #include <net/if.h>
1889                 ], [
1890                 struct ifconf ifc;
1891                 struct ifreq *ifr;
1892                 void *x;
1893                 ifc.ifc_len = 0;
1894                 ifc.ifc_buf = NULL;
1895                 x = (void *) &ifr->ifr_addr;
1896                 ],[
1897                         AC_MSG_RESULT(yes)
1898                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
1899                 ], [
1900                         AC_MSG_RESULT(no)
1901                 ])
1902         dnl **********************************
1903         dnl ***     Checks for sin_len     ***
1904         dnl **********************************
1905         AC_MSG_CHECKING(for sockaddr_in.sin_len)
1906         AC_TRY_COMPILE([
1907                 #include <netinet/in.h>
1908                 ], [
1909                 struct sockaddr_in saddr;
1910                 saddr.sin_len = sizeof (saddr);
1911                 ],[
1912                         AC_MSG_RESULT(yes)
1913                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
1914                 ], [
1915                         AC_MSG_RESULT(no)
1916                 ])      
1917         dnl **********************************
1918         dnl ***    Checks for sin6_len     ***
1919         dnl **********************************
1920         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
1921         AC_TRY_COMPILE([
1922                 #include <netinet/in.h>
1923                 ], [
1924                 struct sockaddr_in6 saddr6;
1925                 saddr6.sin6_len = sizeof (saddr6);
1926                 ],[
1927                         AC_MSG_RESULT(yes)
1928                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
1929                 ], [
1930                         AC_MSG_RESULT(no)
1931                 ])
1932         dnl **********************************
1933         dnl *** Check for getifaddrs       ***
1934         dnl **********************************
1935         AC_MSG_CHECKING(for getifaddrs)
1936                 AC_TRY_LINK([
1937                 #include <stdio.h>
1938                 #include <sys/types.h>
1939                 #include <sys/socket.h>
1940                 #include <ifaddrs.h>
1941         ], [
1942                 getifaddrs(NULL);
1943         ], [
1944                 # Yes, we have it...
1945                 AC_MSG_RESULT(yes)
1946                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
1947         ], [
1948                 AC_MSG_RESULT(no)
1949         ])
1950         dnl **********************************
1951         dnl *** Check for if_nametoindex   ***
1952         dnl **********************************
1953         AC_MSG_CHECKING(for if_nametoindex)
1954                 AC_TRY_LINK([
1955                 #include <stdio.h>
1956                 #include <sys/types.h>
1957                 #include <sys/socket.h>
1958                 #include <net/if.h>
1959         ], [
1960                 if_nametoindex(NULL);
1961         ], [
1962                 # Yes, we have it...
1963                 AC_MSG_RESULT(yes)
1964                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
1965         ], [
1966                 AC_MSG_RESULT(no)
1967         ])
1968                         
1969         dnl **********************************
1970         dnl *** Checks for MonoPosixHelper ***
1971         dnl **********************************
1972         AC_CHECK_HEADERS(checklist.h)
1973         AC_CHECK_HEADERS(pathconf.h)
1974         AC_CHECK_HEADERS(fstab.h)
1975         AC_CHECK_HEADERS(attr/xattr.h)
1976         AC_CHECK_HEADERS(sys/extattr.h)
1977         AC_CHECK_HEADERS(sys/sendfile.h)
1978         AC_CHECK_HEADERS(sys/statvfs.h)
1979         AC_CHECK_HEADERS(sys/statfs.h)
1980         AC_CHECK_HEADERS(sys/vfstab.h)
1981         AC_CHECK_HEADERS(sys/xattr.h)
1982         AC_CHECK_HEADERS(sys/mman.h)
1983         AC_CHECK_HEADERS(sys/param.h)
1984         AC_CHECK_HEADERS(sys/mount.h, [], [],
1985                 [
1986                 #ifdef HAVE_SYS_PARAM_H
1987                 # include <sys/param.h>
1988                 #endif
1989                 ])
1990         AC_CHECK_HEADERS(sys/mount.h)
1991         AC_CHECK_FUNCS(confstr)
1992         AC_CHECK_FUNCS(seekdir telldir)
1993         AC_CHECK_FUNCS(getdomainname)
1994         AC_CHECK_FUNCS(setdomainname)
1995         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
1996         AC_CHECK_FUNCS(setgroups)
1997         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
1998         AC_CHECK_FUNCS(getfsstat)
1999         AC_CHECK_FUNCS(lutimes futimes)
2000         AC_CHECK_FUNCS(mremap)
2001         AC_CHECK_FUNCS(remap_file_pages)
2002         AC_CHECK_FUNCS(posix_fadvise)
2003         AC_CHECK_FUNCS(posix_fallocate)
2004         AC_CHECK_FUNCS(posix_madvise)
2005         AC_CHECK_FUNCS(vsnprintf)
2006         AC_CHECK_FUNCS(sendfile)
2007         AC_CHECK_FUNCS(gethostid sethostid)
2008         AC_CHECK_FUNCS(sethostname)
2009         AC_CHECK_FUNCS(statfs)
2010         AC_CHECK_FUNCS(fstatfs)
2011         AC_CHECK_FUNCS(statvfs)
2012         AC_CHECK_FUNCS(fstatvfs)
2013         AC_CHECK_FUNCS(stime)
2014         AC_CHECK_FUNCS(strerror_r)
2015         AC_CHECK_FUNCS(ttyname_r)
2016         AC_CHECK_FUNCS(psignal)
2017         AC_CHECK_FUNCS(getlogin_r)
2018         AC_CHECK_FUNCS(lockf)
2019         AC_CHECK_FUNCS(swab)
2020         AC_CHECK_FUNCS(setusershell endusershell)
2021         AC_CHECK_FUNCS(futimens utimensat)
2022         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2023         AC_CHECK_FUNCS(readv writev preadv pwritev)
2024         AC_CHECK_FUNCS(setpgid)
2025         AC_CHECK_SIZEOF(size_t)
2026         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2027                 [#include <sys/types.h>
2028                  #include <sys/stat.h>
2029                  #include <unistd.h>])
2030         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2031                 [#include <sys/types.h>
2032                  #include <sys/stat.h>
2033                  #include <unistd.h>])
2034         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2035                 [#include <sys/time.h>])
2036         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2037                 [#include <unistd.h>
2038                  #include <fcntl.h>])
2039         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2040                 [#include <sys/uio.h>])
2041         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2042                 [#include <sys/poll.h>])
2043         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2044                 [#include <sys/types.h>
2045                  #include <sys/stat.h>
2046                  #include <unistd.h>])
2047         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2048                 [#include <time.h>])
2049         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2050                 [#include <sys/time.h>
2051                  #include <sys/types.h>
2052                  #include <utime.h>])
2053         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2054                 [#include <sys/time.h>])
2055         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2056                 [#include <sys/types.h>
2057                  #include <utime.h>])
2058         AC_CHECK_MEMBERS(
2059                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2060                 [#include <sys/types.h>
2061                  #include <dirent.h>])
2062         AC_CHECK_MEMBERS(
2063                 [struct passwd.pw_gecos],,, 
2064                 [#include <sys/types.h>
2065                  #include <pwd.h>])
2066         AC_CHECK_MEMBERS(
2067                 [struct statfs.f_flags],,, 
2068                 [#include <sys/types.h>
2069                  #include <sys/vfs.h>])
2070         AC_CHECK_MEMBERS(
2071                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2072                 [#include <sys/types.h>
2073                  #include <sys/stat.h>
2074                  #include <unistd.h>])
2075
2076         dnl Favour xattr through glibc, but use libattr if we have to
2077         AC_CHECK_FUNC(lsetxattr, ,
2078                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2079         )
2080         AC_SUBST(XATTR_LIB)
2081
2082         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2083         AC_CHECK_MEMBERS(
2084                 [struct kinfo_proc.kp_proc],,, 
2085                 [#include <sys/types.h>
2086                  #include <sys/param.h>
2087                  #include <sys/sysctl.h>
2088                  #include <sys/proc.h>
2089                  ])
2090
2091         dnl *********************************
2092         dnl *** Checks for Windows compilation ***
2093         dnl *********************************
2094         AC_CHECK_HEADERS(sys/time.h)
2095         AC_CHECK_HEADERS(sys/param.h)
2096         AC_CHECK_HEADERS(dirent.h)
2097
2098         dnl ******************************************
2099         dnl *** Checks for OSX and iOS compilation ***
2100         dnl ******************************************
2101         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2102
2103         dnl *********************************
2104         dnl *** Check for Console 2.0 I/O ***
2105         dnl *********************************
2106         AC_CHECK_HEADERS([curses.h])
2107         AC_CHECK_HEADERS([term.h], [], [],
2108         [#if HAVE_CURSES_H
2109          #include <curses.h>
2110          #endif
2111         ])
2112         AC_CHECK_HEADERS([termios.h])
2113
2114         dnl * This is provided in io-layer, but on windows it's only available
2115         dnl * on xp+
2116         AC_DEFINE(HAVE_GETPROCESSID, 1, [Define if GetProcessId is available])
2117 else
2118         dnl *********************************
2119         dnl *** Checks for Windows compilation ***
2120         dnl *********************************
2121         AC_CHECK_HEADERS(winternl.h)
2122
2123         jdk_headers_found=no
2124         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2125         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2126         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2127         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2128         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2129         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2130         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2131
2132         dnl *********************************
2133         dnl *** Check for struct ip_mreqn ***
2134         dnl *********************************
2135         AC_MSG_CHECKING(for struct ip_mreqn)
2136         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2137                 struct ip_mreqn mreq;
2138                 mreq.imr_address.s_addr = 0;
2139         ], [
2140                 # Yes, we have it...
2141                 AC_MSG_RESULT(yes)
2142                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2143         ], [
2144                 # We'll just have to try and use struct ip_mreq
2145                 AC_MSG_RESULT(no)
2146                 AC_MSG_CHECKING(for struct ip_mreq)
2147                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2148                         struct ip_mreq mreq;
2149                         mreq.imr_interface.s_addr = 0;
2150                 ], [
2151                         # Yes, we have it...
2152                         AC_MSG_RESULT(yes)
2153                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2154                 ], [
2155                         # No multicast support
2156                         AC_MSG_RESULT(no)
2157                 ])
2158         ])
2159         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2160         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2161         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2162         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2163         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2164         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2165         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2166
2167         AC_MSG_CHECKING(for GetProcessId)
2168         AC_TRY_COMPILE([#include <windows.h>], [
2169                 GetProcessId (0);
2170         ], [
2171            AC_MSG_RESULT(yes)
2172            AC_DEFINE(HAVE_GETPROCESSID)
2173         ], [
2174            AC_MSG_RESULT(no)
2175         ])
2176 fi
2177
2178 dnl socklen_t check
2179 AC_MSG_CHECKING(for socklen_t)
2180 AC_TRY_COMPILE([
2181 #include <sys/types.h>
2182 #include <sys/socket.h>
2183 ],[
2184   socklen_t foo;
2185 ],[
2186 ac_cv_c_socklen_t=yes
2187         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2188         AC_MSG_RESULT(yes)
2189 ],[
2190         AC_MSG_RESULT(no)
2191 ])
2192
2193 AC_MSG_CHECKING(for array element initializer support)
2194 AC_TRY_COMPILE([#include <sys/socket.h>], [
2195         const int array[] = {[1] = 2,};
2196 ], [
2197         # Yes, we have it...
2198         AC_MSG_RESULT(yes)
2199         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2200 ], [
2201         # We'll have to use signals
2202         AC_MSG_RESULT(no)
2203 ])
2204
2205 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2206         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2207         AC_TRY_LINK([#include <math.h>], 
2208         [ static void *p = &trunc; ],
2209         [
2210                 AC_DEFINE(HAVE_TRUNC) 
2211                 AC_MSG_RESULT(yes)
2212                 ac_cv_trunc=yes
2213         ],
2214         AC_MSG_RESULT(no)))
2215
2216 if test "x$ac_cv_truncl" != "xyes"; then
2217    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2218 fi
2219
2220 AC_CHECK_FUNCS(round)
2221 AC_CHECK_FUNCS(rint)
2222 AC_CHECK_FUNCS(execvp)
2223
2224 dnl ****************************
2225 dnl *** Look for /dev/random ***
2226 dnl ****************************
2227
2228 AC_MSG_CHECKING([if usage of random device is requested])
2229 AC_ARG_ENABLE(dev-random,
2230 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2231 try_dev_random=$enableval, try_dev_random=yes)
2232
2233 AC_MSG_RESULT($try_dev_random)
2234
2235 case "{$build}" in
2236     *-openbsd*)
2237     NAME_DEV_RANDOM="/dev/srandom"
2238     ;;
2239
2240 dnl Win32 does not have /dev/random, they have their own method...
2241
2242     *-mingw*|*-*-cygwin*)
2243     ac_cv_have_dev_random=no
2244     ;;
2245
2246 dnl Everywhere else, it's /dev/random
2247
2248     *)
2249     NAME_DEV_RANDOM="/dev/random"
2250     ;;
2251 esac
2252
2253 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2254
2255 dnl Now check if the device actually exists
2256
2257 if test "x$try_dev_random" = "xyes"; then
2258     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2259     [if test -r "$NAME_DEV_RANDOM" ; then
2260         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2261     if test "x$ac_cv_have_dev_random" = "xyes"; then
2262         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2263     fi
2264 else
2265     AC_MSG_CHECKING(for random device)
2266     ac_cv_have_dev_random=no
2267     AC_MSG_RESULT(has been disabled)
2268 fi
2269
2270 if test "x$host_win32" = "xyes"; then
2271     AC_DEFINE(HAVE_CRYPT_RNG)
2272 fi
2273
2274 if test "x$ac_cv_have_dev_random" = "xno" \
2275     && test "x$host_win32" = "xno"; then
2276     AC_MSG_WARN([[
2277 ***
2278 *** A system-provided entropy source was not found on this system.
2279 *** Because of this, the System.Security.Cryptography random number generator
2280 *** will throw a NotImplemented exception.
2281 ***
2282 *** If you are seeing this message, and you know your system DOES have an
2283 *** entropy collection in place, please contact <crichton@gimp.org> and
2284 *** provide information about the system and how to access the random device.
2285 ***
2286 *** Otherwise you can install either egd or prngd and set the environment
2287 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2288 ***]])
2289 fi
2290  
2291 AC_MSG_CHECKING([if inter-process shared handles are requested])
2292 # Same as --enable-minimal=shared_handles
2293 AC_ARG_ENABLE(shared-handles, [  --disable-shared-handles disable inter-process shared handles], try_shared_handles=$enableval, try_shared_handles=yes)
2294 AC_MSG_RESULT($try_shared_handles)
2295 if test "x$try_shared_handles" != "xyes"; then
2296         AC_DEFINE(DISABLE_SHARED_HANDLES, 1, [Disable inter-process shared handles])
2297         AC_SUBST(DISABLE_SHARED_HANDLES)
2298 fi
2299
2300 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2301
2302 AC_MSG_CHECKING([if big-arrays are to be enabled])
2303 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2304 if test "x$enable_big_arrays" = "xyes" ; then
2305     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2306         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2307     else
2308         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2309     fi
2310 fi
2311 AC_MSG_RESULT($enable_big_arrays)
2312
2313 dnl **************
2314 dnl *** DTRACE ***
2315 dnl **************
2316
2317 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2318
2319 if test "x$enable_dtrace" = "xyes"; then
2320    if test "x$has_dtrace" = "xno"; then
2321           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2322    fi
2323    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2324    if test "x$DTRACE" = "xno"; then
2325           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2326           enable_dtrace=no
2327    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2328           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2329           enable_dtrace=no
2330    fi
2331 fi
2332
2333 dtrace_g=no
2334 if test "x$enable_dtrace" = "xyes"; then
2335         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2336         DTRACEFLAGS=
2337         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2338                 case "$host" in
2339                         powerpc-*-darwin*)
2340                         DTRACEFLAGS="-arch ppc64"
2341                         ;;
2342                         i*86-*-darwin*)
2343                         DTRACEFLAGS="-arch x86_64"
2344                         ;;
2345                         *)
2346                         DTRACEFLAGS=-64
2347                         ;;
2348                 esac
2349         else
2350                 case "$host" in
2351                         powerpc-*-darwin*)
2352                         DTRACEFLAGS="-arch ppc"
2353                         ;;
2354                         i*86-*-darwin*)
2355                         DTRACEFLAGS="-arch i386"
2356                         ;;
2357                         *)
2358                         DTRACEFLAGS=-32
2359                         ;;
2360                 esac
2361         fi
2362         AC_SUBST(DTRACEFLAGS)
2363         case "$host" in
2364                 *-*-solaris*)
2365                 dtrace_g=yes
2366                 ;;
2367         esac
2368         AC_CHECK_HEADERS([sys/sdt.h])
2369 fi
2370 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2371 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2372
2373 dnl **************
2374 dnl ***  NaCl  ***
2375 dnl **************
2376
2377 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2378 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2379
2380 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2381
2382 dnl
2383 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2384 dnl
2385 nacl_self_host=""
2386 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2387    nacl_self_host="nacl_self_host"
2388 fi
2389 AC_SUBST(nacl_self_host)
2390
2391 if test "x$enable_nacl_codegen" = "xyes"; then
2392    MONO_NACL_ALIGN_MASK_OFF=1
2393    AC_DEFINE(TARGET_NACL, 1, [...])
2394    AC_DEFINE(__native_client_codegen__, 1, [...])
2395 else
2396    MONO_NACL_ALIGN_MASK_OFF=0
2397    AC_DEFINE(__default_codegen__, 1, [...])
2398 fi
2399 if test "x$enable_nacl_gc" = "xyes"; then
2400    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2401       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2402    else
2403       # Not yet implemented
2404       INSTRUMENT_CFLAG=""
2405    fi
2406    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2407 fi
2408 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2409
2410 dnl **************
2411 dnl ***  LLVM  ***
2412 dnl **************
2413
2414 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=no)
2415 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2416 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2417
2418 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2419
2420 if test "x$enable_llvm" = "xyes"; then
2421    if test "x$with_llvm" != "x"; then
2422           LLVM_CONFIG=$with_llvm/bin/llvm-config
2423           if test ! -x $LLVM_CONFIG; then
2424                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2425       fi
2426    else
2427       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2428       if test "x$LLVM_CONFIG" = "xno"; then
2429              AC_MSG_ERROR([llvm-config not found.])
2430       fi
2431    fi
2432
2433    llvm_codegen="x86codegen"
2434    case "$target" in
2435    arm*)
2436                 llvm_codegen="armcodegen"
2437                 ;;
2438    esac
2439
2440    # The output of --cflags seems to include optimizations flags too
2441    LLVM_CFLAGS=`$LLVM_CONFIG --cflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2442    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2443    # from LLVM classes.
2444    LLVM_CXXFLAGS="`$LLVM_CONFIG --cxxflags` -fno-rtti"
2445    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2446    # This might include empty lines
2447    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2448    if test "x$host" != "x$target"; then
2449       # No need for jit libs
2450       LLVM_LIBS=`$LLVM_CONFIG --libs core bitwriter`
2451    else
2452       LLVM_LIBS=`$LLVM_CONFIG --libs core bitwriter jit mcjit $llvm_codegen`
2453    fi
2454    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS -lstdc++"
2455
2456    expected_llvm_version="3.4svn-mono-mono/e656cac"
2457
2458    # Should be something like '2.6' or '2.7svn'
2459    llvm_version=`$LLVM_CONFIG --version`
2460    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2461    AC_MSG_CHECKING(LLVM version)
2462    AC_MSG_RESULT($llvm_version)
2463    if echo $llvm_version | grep -q 'mono'; then
2464           if test "x$enable_llvm_version_check" == "xyes"; then
2465                  if test "$llvm_version" != "$expected_llvm_version"; then
2466                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2467                  fi
2468           fi
2469           if test "x$llvm_api_version" = "x"; then
2470                 LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2471                 LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2472           else
2473                 LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2474                 LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2475           fi
2476    else
2477           AC_MSG_ERROR([Compiling with stock LLVM is not supported, please use the Mono LLVM repo at https://github.com/mono/llvm, with the GIT branch which matches this version of mono, i.e. 'mono-2-10' for Mono 2.10.])
2478    fi
2479
2480    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2481
2482    AC_SUBST(LLVM_CFLAGS)
2483    AC_SUBST(LLVM_CXXFLAGS)
2484    AC_SUBST(LLVM_LIBS)
2485    AC_SUBST(LLVM_LDFLAGS)
2486    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2487 fi
2488
2489 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2490 if test "x$enable_loadedllvm" = "xyes"; then
2491    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2492 fi
2493 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2494
2495 TARGET="unknown"
2496 ACCESS_UNALIGNED="yes"
2497
2498 LIBC="libc.so.6"
2499 INTL="libc.so.6"
2500 SQLITE="libsqlite.so.0"
2501 SQLITE3="libsqlite3.so.0"
2502 X11="libX11.so"
2503 GDKX11="libgdk-x11-2.0.so.0"
2504 GTKX11="libgtk-x11-2.0.so.0"
2505 XINERAMA="libXinerama.so.1"
2506
2507 sizeof_register="SIZEOF_VOID_P"
2508
2509 jit_wanted=true
2510 sgen_supported=false
2511 boehm_supported=true
2512 case "$host" in
2513         mips*)
2514                 TARGET=MIPS;
2515                 arch_target=mips;
2516                 sgen_supported=true
2517                 ACCESS_UNALIGNED="no"
2518
2519                 AC_MSG_CHECKING(for mips n32)
2520                 AC_TRY_COMPILE([],[
2521                 #if _MIPS_SIM != _ABIN32
2522                 #error Not mips n32
2523                 #endif
2524                 return 0;
2525                 ],[
2526                 AC_MSG_RESULT(yes)
2527                 sizeof_register=8
2528                 ],[
2529                 AC_MSG_RESULT(no)
2530                 ])
2531                 ;;
2532         i*86-*-*)
2533                 TARGET=X86;
2534                 arch_target=x86;
2535                 case $host_os in
2536                   solaris*)
2537                         LIBC="libc.so"
2538                         INTL="libintl.so"
2539                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2540                                 TARGET=AMD64
2541                                 arch_target=amd64
2542                         fi
2543
2544                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
2545                         # int astruct __attribute__ ((visibility ("hidden")));
2546                         # void foo ()
2547                         # {
2548                         #       void *p = &astruct;
2549                         # }
2550                         # gcc -fPIC --shared -o libfoo.so foo.c
2551                         # yields:
2552                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
2553                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
2554                         have_visibility_hidden=no
2555                         sgen_supported=true
2556                         ;;
2557                   mingw*|cygwin*)
2558                         sgen_supported=true
2559                         have_visibility_hidden=no                 
2560                         ;;
2561                   haiku*)
2562                         LIBC=libroot.so
2563                         ;;
2564                   linux*)
2565                         sgen_supported=true
2566                         AOT_SUPPORTED="yes"
2567                         ;;
2568                   darwin*)
2569                         sgen_supported=true
2570                         AOT_SUPPORTED="yes"
2571                         ;;
2572                   openbsd*|freebsd*|kfreebsd-gnu*)
2573                         sgen_supported=true
2574                         ;;
2575                 esac
2576                 ;;
2577         x86_64-*-* | amd64-*-*)
2578                 TARGET=AMD64;
2579                 arch_target=amd64;
2580                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
2581                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2582                         sizeof_register=8
2583                 fi
2584                 case $host_os in
2585                   linux*)
2586                         sgen_supported=true
2587                         AOT_SUPPORTED="yes"
2588                         ;;
2589                   darwin*)
2590                         sgen_supported=true
2591                         AOT_SUPPORTED="yes"
2592                         ;;
2593                   openbsd*|freebsd*|kfreebsd-gnu*)
2594                         sgen_supported=true
2595                         ;;
2596                   mingw*)
2597                         sgen_supported=true
2598                         ;;
2599                 esac
2600                 case "$host" in
2601                         x86_64-*-nacl*)
2602                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2603                                 sizeof_register=8
2604                                 ;;
2605                 esac
2606                 ;;
2607         ia64-*-*)
2608                 TARGET=IA64
2609                 arch_target=ia64
2610                 ACCESS_UNALIGNED="no"
2611                 LIBC="libc.so.6.1"
2612                 INTL="libc.so.6.1"
2613                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
2614                 libmono_ldflags="-lunwind"
2615                 ;;
2616         sparc*-*-*)
2617                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2618                    TARGET=SPARC64
2619                 else
2620                         TARGET=SPARC
2621                 fi
2622                 arch_target=sparc;
2623                 ACCESS_UNALIGNED="no"
2624                 case $host_os in
2625                   linux*) ;;
2626                   *)
2627                         LIBC="libc.so"
2628                         INTL="libintl.so"
2629                 esac
2630                 if test x"$GCC" = xyes; then
2631                         # We don't support v8 cpus
2632                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
2633                 fi
2634                 if test x"$AR" = xfalse; then
2635                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
2636                 fi
2637                 sgen_supported=true
2638                 ;;
2639         *-mingw*|*-*-cygwin*)
2640                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
2641                 have_visibility_hidden=no
2642                 INTL="intl"
2643                 ;;
2644         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
2645         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
2646                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2647                         TARGET=POWERPC64;
2648                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
2649                         CFLAGS="$CFLAGS -mminimal-toc"
2650                 else
2651                         TARGET=POWERPC;
2652                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
2653                 fi
2654                 arch_target=ppc;
2655                 case $host_os in
2656                   linux*|darwin*)
2657                         sgen_supported=true
2658                         ;;
2659                 esac
2660                 ;;
2661         arm*-darwin*)
2662                 TARGET=ARM;
2663                 arch_target=arm;
2664                 ACCESS_UNALIGNED="no"
2665                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2666                 sgen_supported=true
2667                 ;;
2668         arm*-linux*)
2669                 TARGET=ARM;
2670                 arch_target=arm;
2671                 ACCESS_UNALIGNED="no"
2672                 sgen_supported=true
2673                 AOT_SUPPORTED="yes"
2674                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2675                 ;;
2676 # TODO: make proper support for NaCl host.
2677 #        arm*-*nacl)
2678 #               TARGET=ARM;
2679 #               arch_target=arm;
2680 #               ACCESS_UNALIGNED="no"
2681 #               sgen_supported=true
2682 #               AOT_SUPPORTED="no"
2683 #               ;;
2684         aarch64-*)
2685                 # https://lkml.org/lkml/2012/7/15/133
2686                 TARGET=ARM64
2687                 arch_target=arm64
2688                 sgen_supported=true
2689                 boehm_supported=false
2690                 ;;
2691         s390x-*-linux*)
2692                 TARGET=S390X;
2693                 arch_target=s390x;
2694                 ACCESS_UNALIGNED="yes"
2695                 sgen_supported=true
2696                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
2697                 ;;
2698 esac
2699
2700 HOST=$TARGET
2701
2702 if test "x$host" != "x$target"; then
2703    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
2704    enable_mcs_build=no
2705    case "$target" in
2706    arm*-darwin*)
2707                 TARGET=ARM;
2708                 arch_target=arm;
2709                 ACCESS_UNALIGNED="no"
2710                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2711                 # Can't use tls, since it depends on the runtime detection of tls offsets
2712                 # in mono-compiler.h
2713                 with_tls=pthread
2714                 ;;
2715    powerpc64-ps3-linux-gnu)
2716                 TARGET=POWERPC64
2717                 arch_target=powerpc64
2718                 AC_DEFINE(TARGET_PS3, 1, [...])
2719                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2720                 # uses this define
2721                 AC_DEFINE(__mono_ppc64__, 1, [...])
2722                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2723                 sizeof_register=8
2724                 target_byte_order=G_BIG_ENDIAN
2725                 ;;
2726    powerpc64-xbox360-linux-gnu)
2727                 TARGET=POWERPC64
2728                 arch_target=powerpc64
2729                 AC_DEFINE(TARGET_XBOX360, 1, [...])
2730                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2731                 # uses this define
2732                 sizeof_register=8
2733                 target_byte_order=G_BIG_ENDIAN
2734                 ;;
2735    x86_64-*-nacl)
2736                 TARGET=AMD64
2737                 arch_target=amd64
2738                 AC_DEFINE(TARGET_AMD64, 1, [...])
2739                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2740                 sizeof_register=8
2741                 ;;
2742 # TODO: make proper support for NaCl target.
2743 #   arm*-*nacl)
2744 #               TARGET=ARM
2745 #               arch_target=arm
2746 #               AC_DEFINE(TARGET_ARM, 1, [...])
2747 #               ACCESS_UNALIGNED="no"
2748 #               sizeof_register=4
2749 #               CPPFLAGS="$CPPFLAGS \
2750 #                    -D__ARM_EABI__ \
2751 #                    -D__arm__ \
2752 #                    -D__portable_native_client__ \
2753 #                    -Dtimezone=_timezone \
2754 #                    -DDISABLE_SOCKETS \
2755 #                    -DDISABLE_ATTACH \
2756 #                    -DUSE_NEWLIB"
2757                 # Can't use tls, since it depends on the runtime detection of tls offsets
2758                 # in mono-compiler.h
2759 #               with_tls=pthread
2760 #               ;;
2761    i686-*-nacl)
2762                 TARGET=X86
2763                 arch_target=x86
2764                 AC_DEFINE(TARGET_X86, 1, [...])
2765                 sizeof_register=4
2766                 ;;
2767    arm*-linux-*)
2768                 TARGET=ARM;
2769                 arch_target=arm;
2770                 AC_DEFINE(TARGET_ARM, 1, [...])
2771                 AC_DEFINE(TARGET_ANDROID, 1, [...])
2772                 ACCESS_UNALIGNED="no"
2773                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2774                 # Can't use tls, since it depends on the runtime detection of tls offsets
2775                 # in mono-compiler.h
2776                 with_tls=pthread
2777                 target_mach=no
2778                 case "$target" in
2779                 armv7l-unknown-linux-gnueabi*)
2780                         # TEGRA
2781                         CPPFLAGS="$CPPFLAGS"
2782                         ;;
2783                 armv5-*-linux-androideabi*)
2784                         CPPFLAGS="$CPPFLAGS"
2785                         ;;
2786                 esac
2787                 ;;
2788    i686*-linux-*)
2789                 TARGET=X86;
2790                 arch_target=x86;
2791                 AC_DEFINE(TARGET_X86, 1, [...])
2792                 AC_DEFINE(TARGET_ANDROID, 1, [...])
2793                 CPPFLAGS="$CPPFLAGS"
2794                 sgen_supported=true
2795                 # Can't use tls, since it depends on the runtime detection of tls offsets
2796                 # in mono-compiler.h            
2797                 with_tls=pthread
2798                 target_mach=no
2799                 ;;
2800    aarch64*-linux-*)
2801                 TARGET=ARM64;
2802                 arch_target=arm64;
2803                 AC_DEFINE(TARGET_ARM64, 1, [...])
2804                 AC_DEFINE(TARGET_ANDROID, 1, [...])
2805                 CPPFLAGS="$CPPFLAGS"
2806                 # Can't use tls, since it depends on the runtime detection of tls offsets
2807                 # in mono-compiler.h
2808                 with_tls=pthread
2809                 target_mach=no
2810                 ;;
2811         aarch64-*)
2812                 TARGET=ARM64
2813                 ;;
2814         *)
2815                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
2816         esac
2817 fi
2818
2819 case "$TARGET" in
2820 X86)
2821         AC_DEFINE(TARGET_X86, 1, [...])
2822         ;;
2823 AMD64)
2824         AC_DEFINE(TARGET_AMD64, 1, [...])
2825         ;;
2826 ARM)
2827         AC_DEFINE(TARGET_ARM, 1, [...])
2828         ;;
2829 ARM64)
2830         AC_DEFINE(TARGET_ARM64, 1, [...])
2831         ;;
2832 POWERPC)
2833         AC_DEFINE(TARGET_POWERPC, 1, [...])
2834         ;;
2835 POWERPC64)
2836         AC_DEFINE(TARGET_POWERPC, 1, [...])
2837         AC_DEFINE(TARGET_POWERPC64, 1, [...])
2838         ;;
2839 S390X)
2840         AC_DEFINE(TARGET_S390X, 1, [...])
2841         ;;
2842 MIPS)
2843         AC_DEFINE(TARGET_MIPS, 1, [...])
2844         ;;
2845 IA64)
2846         AC_DEFINE(TARGET_IA64, 1, [...])
2847         ;;
2848 SPARC)
2849         AC_DEFINE(TARGET_SPARC, 1, [...])
2850         ;;
2851 SPARC64)
2852         AC_DEFINE(TARGET_SPARC64, 1, [...])
2853         ;;
2854 esac
2855
2856 dnl Use GCC atomic ops if they work on the target.
2857 if test x$GCC = "xyes"; then
2858         case $TARGET in
2859         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
2860                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
2861                 ;;
2862         esac
2863 fi
2864
2865 if test "x$target_mach" = "xyes"; then
2866    if test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
2867           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
2868           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
2869           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
2870    else
2871        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
2872        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
2873        #error fail this for ios
2874        #endif
2875        return 0;
2876        ], [
2877                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
2878           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
2879           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
2880        ], [
2881           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
2882           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
2883           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
2884        ])
2885         fi
2886    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
2887 fi
2888
2889 if test "x$sizeof_register" = "x4"; then
2890    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
2891 elif test "x$sizeof_register" = "x8"; then
2892    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
2893 else
2894    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
2895 fi
2896
2897 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
2898    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
2899 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
2900    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
2901 else
2902    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
2903 fi
2904
2905 if test "x$have_visibility_hidden" = "xyes"; then
2906    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
2907 fi
2908
2909 if test "x$have_deprecated" = "xyes"; then
2910    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
2911 fi
2912
2913 dnl 
2914 dnl Simple Generational checks (sgen)
2915 dnl
2916 if $sgen_supported; then
2917    build_sgen_default=yes
2918 else
2919    build_sgen_default=no
2920 fi
2921 SGEN_DEFINES=
2922 AC_ARG_WITH(sgen, [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=$build_sgen_default])
2923 if test x$buildsgen = xyes; then
2924    if $sgen_supported; then
2925        SGEN_DEFINES="-DHAVE_SGEN_GC -DHAVE_MOVING_COLLECTOR"
2926        gc_msg="sgen and $gc_msg"
2927    else
2928        buildsgen=no
2929        AC_MSG_WARN("Sgen is not supported on this platform")
2930    fi
2931 fi
2932 AC_SUBST(SGEN_DEFINES)
2933 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
2934
2935 jit_status="Building and using the JIT"
2936
2937 libsuffix=".so"
2938
2939 case "$host" in
2940      *-*-darwin*)
2941         libsuffix=".dylib"
2942         LIBC="libc.dylib"
2943         INTL="libintl.dylib"
2944         SQLITE="libsqlite.0.dylib"
2945         SQLITE3="libsqlite3.0.dylib"
2946         X11="libX11.dylib"
2947         GDKX11="libgdk-x11-2.0.dylib"
2948         GTKX11="libgtk-x11-2.0.dylib"
2949         ;;
2950      *-*-*netbsd*)
2951         LIBC="libc.so.12"
2952         INTL="libintl.so.0"
2953         ;;
2954      *-*-kfreebsd*-gnu)
2955         LIBC="libc.so.0.1"
2956         INTL="libc.so.0.1"
2957         X11="libX11.so.6"
2958         ;;
2959     *-*-*freebsd*)
2960         LIBC="libc.so"
2961         INTL="libintl.so"
2962         SQLITE="libsqlite.so"
2963         SQLITE3="libsqlite3.so"
2964         ;;
2965     *-*-*openbsd*)
2966         LIBC="libc.so"
2967         INTL="libintl.so"
2968         SQLITE="libsqlite.so"
2969         SQLITE3="libsqlite3.so"
2970         ;;
2971     *-*-*linux*)
2972         AC_PATH_X
2973         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
2974         AC_MSG_CHECKING(for the soname of libX11.so)
2975         for i in $x_libraries $dlsearch_path; do
2976                 for r in 4 5 6; do
2977                         if test -f $i/libX11.so.$r; then
2978                                 X11=libX11.so.$r
2979                                 AC_MSG_RESULT($X11)
2980                         fi
2981                 done
2982         done
2983         
2984         if test "x$X11" = "xlibX11.so"; then
2985                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
2986                 X11=libX11.so.6
2987         fi
2988         ;;
2989 esac
2990
2991
2992 AC_SUBST(libsuffix)
2993
2994 AC_ARG_WITH([libgdiplus],
2995         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
2996         [], [with_libgdiplus=installed])
2997
2998 # default install location
2999 libgdiplus_install_loc=libgdiplus${libsuffix}
3000 case $with_libgdiplus in
3001     no|installed)
3002     libgdiplus_loc=
3003     ;;
3004
3005     yes|sibling)
3006     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3007     ;;
3008
3009     /*) # absolute path, assume it is an install location
3010     libgdiplus_loc=$with_libgdiplus
3011     libgdiplus_install_loc=$with_libgdiplus
3012     ;;
3013
3014     *)
3015     libgdiplus_loc=`pwd`/$with_libgdiplus
3016     ;;
3017 esac
3018 AC_SUBST([libgdiplus_loc])
3019 AC_SUBST([libgdiplus_install_loc])
3020
3021 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3022 if test "x$icall_symbol_map" = "xyes"; then
3023    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3024 fi
3025
3026 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3027 if test "x$icall_export" = "xyes"; then
3028    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3029 fi
3030
3031 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3032 if test "x$icall_tables" = "xno"; then
3033    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3034 fi
3035
3036 if test "x$with_tls" = "x__thread"; then
3037         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3038         # Pass the information to libgc
3039         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3040         AC_MSG_CHECKING(if the tls_model attribute is supported)
3041         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3042                 ], [
3043                         AC_MSG_RESULT(yes)
3044                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3045                 ], [
3046                         AC_MSG_RESULT(no)
3047         ])
3048 fi
3049
3050 if test ${TARGET} = ARM; then
3051         dnl ******************************************
3052         dnl *** Check to see what FPU is available ***
3053         dnl ******************************************
3054         AC_MSG_CHECKING(which FPU to use)
3055
3056         #
3057         # This is a bit tricky:
3058         #
3059         # if (__ARM_PCS_VFP) {
3060         #       /* mfloat-abi=hard == VFP with hard ABI */
3061         # } elif (!__SOFTFP__) {
3062         #       /* mfloat-abi=softfp == VFP with soft ABI */
3063         # } else {
3064         #       /* mfloat-abi=soft == no VFP */
3065         # }
3066         #
3067         # The exception is iOS (w/ GCC) where none of the above
3068         # are defined (but iOS always uses the 'softfp' ABI).
3069         #
3070         # No support for FPA.
3071         #
3072
3073         fpu=NONE
3074
3075         # iOS GCC always uses the 'softfp' ABI.
3076         if test x"$GCC" = xyes && test x$platform_darwin = xyes; then
3077                 fpu=VFP
3078         fi
3079
3080         # Are we using the 'hard' ABI?
3081         if test x$fpu = xNONE; then
3082                 AC_TRY_COMPILE([], [
3083                         #ifndef __ARM_PCS_VFP
3084                         #error "Float ABI is not 'hard'"
3085                         #endif
3086                         return 0;
3087                 ], [
3088                         fpu=VFP_HARD
3089                 ], [
3090                         fpu=NONE
3091                 ])
3092         fi
3093
3094         # No 'hard' ABI. 'soft' or 'softfp'?
3095         if test x$fpu = xNONE; then
3096                 AC_TRY_COMPILE([], [
3097                         #ifdef __SOFTFP__
3098                         #error "Float ABI is not 'softfp'"
3099                         #endif
3100                         return 0;
3101                 ], [
3102                         fpu=VFP
3103                 ], [
3104                         fpu=NONE
3105                 ])
3106         fi
3107
3108         AC_MSG_RESULT($fpu)
3109         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3110         unset fpu
3111
3112         dnl *********************************************
3113         dnl *** Check which ARM version(s) we can use ***
3114         dnl *********************************************
3115         AC_MSG_CHECKING(which ARM version to use)
3116
3117         AC_TRY_COMPILE([], [
3118                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3119                 #error Not on ARM v5.
3120                 #endif
3121                 return 0;
3122         ], [
3123                 arm_v5=yes
3124
3125                 arm_ver=ARMv5
3126         ], [])
3127
3128         AC_TRY_COMPILE([], [
3129                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3130                 #error Not on ARM v6.
3131                 #endif
3132                 return 0;
3133         ], [
3134                 arm_v5=yes
3135                 arm_v6=yes
3136
3137                 arm_ver=ARMv6
3138         ], [])
3139
3140         AC_TRY_COMPILE([], [
3141                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3142                 #error Not on ARM v7.
3143                 #endif
3144                 return 0;
3145         ], [
3146                 arm_v5=yes
3147                 arm_v6=yes
3148                 arm_v7=yes
3149
3150                 arm_ver=ARMv7
3151         ], [])
3152
3153         AC_MSG_RESULT($arm_ver)
3154
3155         if test x$arm_v5 = xyes; then
3156                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3157                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3158         fi
3159
3160         if test x$arm_v6 = xyes; then
3161                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3162                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3163         fi
3164
3165         if test x$arm_v7 = xyes; then
3166                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3167                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3168         fi
3169 fi
3170
3171 if test ${TARGET} = ARM; then
3172         if test "x${with_jumptables}" = "xyes"; then
3173                 AC_DEFINE(USE_JUMP_TABLES, 1, Use jump tables in JIT)
3174         fi
3175 fi
3176
3177 if test ${TARGET} = unknown; then
3178         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3179         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3180 fi
3181
3182 if test ${ACCESS_UNALIGNED} = no; then
3183         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3184 fi
3185
3186 case "x$libgc" in
3187         xincluded)
3188                 # Pass CPPFLAGS to libgc configure
3189                 # We should use a separate variable for this to avoid passing useless and
3190                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3191                 # This should be executed late so we pick up the final version of CPPFLAGS
3192                 # The problem with this approach, is that during a reconfigure, the main
3193                 # configure scripts gets invoked with these arguments, so we use separate
3194                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3195                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3196                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3197                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3198                 fi
3199                 # Don't pass -finstrument-for-thread-suspension in, 
3200                 # if these are instrumented it will be very bad news 
3201                 # (infinite recursion, undefined parking behavior, etc)
3202                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3203                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3204                 if test "x$support_boehm" = "xyes"; then
3205                         AC_CONFIG_SUBDIRS(libgc)
3206                 fi
3207                 ;;
3208 esac
3209
3210 AC_ARG_WITH(profile4_5,[  --with-profile4_5=yes,no        If you want to install the 4.5 FX (defaults to yes)],                [], [with_profile4_5=yes])
3211 AC_ARG_WITH(monodroid, [  --with-monodroid=yes,no         If you want to build the MonoDroid assemblies (defaults to no)],     [], [with_monodroid=no])
3212 AC_ARG_WITH(monotouch, [  --with-monotouch=yes,no,only    If you want to build the MonoTouch assemblies (defaults to no)],     [], [with_monotouch=no])
3213 AC_ARG_WITH(xammac,    [  --with-xammac=yes,no,only       If you want to build the Xamarin.Mac assemblies (defaults to no)],   [], [with_xammac=no])
3214
3215 OPROFILE=no
3216 AC_ARG_WITH(oprofile,[  --with-oprofile=no,<oprofile install dir>   Enable oprofile support (defaults to no)],[
3217         if test x$with_oprofile != xno; then
3218             oprofile_include=$with_oprofile/include
3219             if test ! -f $oprofile_include/opagent.h; then
3220                   AC_MSG_ERROR([oprofile include file not found at $oprofile_include/opagent.h])
3221                 fi
3222             OPROFILE=yes
3223                 OPROFILE_CFLAGS="-I$oprofile_include"
3224             OPROFILE_LIBS="-L$with_oprofile/lib/oprofile -lopagent"
3225             AC_DEFINE(HAVE_OPROFILE,1,[Have oprofile support])
3226         fi
3227 ])
3228
3229 MALLOC_MEMPOOLS=no
3230 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3231         if test x$with_malloc_mempools = xyes; then
3232                 MALLOC_MEMPOOLS=yes
3233                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3234         fi
3235 ])
3236
3237
3238 DISABLE_MCS_DOCS=no
3239 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3240         if test x$with_mcs_docs != xyes; then
3241                 DISABLE_MCS_DOCS=yes
3242         fi
3243 ])
3244 if test x$with_profile4_5 != xyes; then
3245         DISABLE_MCS_DOCS=yes
3246 fi
3247
3248 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
3249         if test x$with_lazy_gc_thread_creation != xno ; then
3250                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3251         fi
3252 ], [with_lazy_gc_thread_creation=no])
3253
3254 AC_CHECK_HEADER([malloc.h], 
3255                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
3256                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3257
3258 if test x"$GCC" = xyes; then
3259         # Implicit function declarations are not 64 bit safe
3260         # Do this late, since this causes lots of configure tests to fail
3261         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3262         # jay has a lot of implicit declarations
3263         JAY_CFLAGS="-Wno-implicit-function-declaration"
3264 fi
3265
3266 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3267 # instead of libmono-static.a
3268 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3269    LIBMONO_LA=libmini-static.la
3270 else
3271    if test x$buildsgen = xyes; then
3272       LIBMONO_LA=libmonosgen-$API_VER.la
3273    else
3274       LIBMONO_LA=libmonoboehm-$API_VER.la
3275    fi
3276 fi
3277 AC_SUBST(LIBMONO_LA)
3278
3279 dnl
3280 dnl Consistency settings
3281 dnl
3282 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
3283    DISABLE_MCS_DOCS=yes
3284    with_profile4_5=no
3285    with_monodroid=no
3286    with_monotouch=no
3287    with_xammac=no
3288 fi
3289
3290 if test x$DISABLE_MCS_DOCS = xyes; then
3291    docs_dir=""
3292 else
3293    docs_dir=docs
3294 fi
3295 AC_SUBST(docs_dir)
3296
3297 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
3298 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
3299
3300 AM_CONDITIONAL(HAVE_OPROFILE, test x$OPROFILE = xyes)
3301 AC_SUBST(OPROFILE_CFLAGS)
3302 AC_SUBST(OPROFILE_LIBS)
3303
3304 libmono_ldflags="$libmono_ldflags $LIBS"
3305
3306 AM_CONDITIONAL(INSTALL_4_5, [test "x$with_profile4_5" = xyes])
3307 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
3308 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
3309 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
3310 AM_CONDITIONAL(ONLY_MONOTOUCH, [test "x$with_monotouch" = "xonly"])
3311 AM_CONDITIONAL(ONLY_XAMMAC, [test "x$with_xammac" = "xonly"])
3312
3313 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
3314 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
3315 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
3316 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
3317 AM_CONDITIONAL(X86, test x$TARGET = xX86)
3318 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
3319 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
3320 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
3321 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
3322 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
3323 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
3324 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
3325 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
3326 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
3327 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
3328 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
3329 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
3330 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
3331
3332 AM_CONDITIONAL(INCLUDED_LIBGC, test x$libgc = xincluded)
3333
3334 AC_SUBST(LIBC)
3335 AC_SUBST(INTL)
3336 AC_SUBST(SQLITE)
3337 AC_SUBST(SQLITE3)
3338 AC_SUBST(X11)
3339 AC_SUBST(GDKX11)
3340 AC_SUBST(GTKX11)
3341 AC_SUBST(XINERAMA)
3342 AC_DEFINE_UNQUOTED(ARCHITECTURE,"$arch_target",[The architecture this is running on])
3343 AC_SUBST(arch_target)
3344 AC_SUBST(CFLAGS)
3345 AC_SUBST(CPPFLAGS)
3346 AC_SUBST(LDFLAGS)
3347
3348 mono_build_root=`pwd`
3349 AC_SUBST(mono_build_root)
3350
3351 mono_runtime=mono/mini/mono
3352 AC_SUBST(mono_runtime)
3353
3354 mono_cfg_root=$mono_build_root/runtime
3355 if test x$host_win32 = xyes; then
3356   if test "x$cross_compiling" = "xno"; then
3357     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
3358   else
3359     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
3360   fi
3361 else
3362   mono_cfg_dir=$mono_cfg_root/etc
3363 fi
3364 AC_SUBST(mono_cfg_dir)
3365
3366 AC_CONFIG_FILES([po/mcs/Makefile.in])
3367
3368 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
3369 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
3370
3371 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
3372 [   depth=../../../..
3373     case $srcdir in
3374     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3375     .) reldir=$depth ;;
3376     *) reldir=$depth/$srcdir ;;
3377     esac
3378     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
3379     cd runtime/etc/mono/1.0
3380     rm -f machine.config
3381     $LN_S $reldir/data/net_1_1/machine.config machine.config
3382     cd $depth
3383 ],[LN_S='$LN_S'])
3384
3385 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
3386 [   depth=../../../..
3387     case $srcdir in
3388     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3389     .) reldir=$depth ;;
3390     *) reldir=$depth/$srcdir ;;
3391     esac
3392     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3393     cd runtime/etc/mono/2.0
3394     rm -f machine.config
3395     $LN_S $reldir/data/net_2_0/machine.config machine.config
3396     cd $depth
3397 ],[LN_S='$LN_S'])
3398
3399 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
3400 [   depth=../../../..
3401     case $srcdir in
3402     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3403     .) reldir=$depth ;;
3404     *) reldir=$depth/$srcdir ;;
3405     esac
3406     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3407     cd runtime/etc/mono/2.0
3408     rm -f web.config
3409     $LN_S $reldir/data/net_2_0/web.config web.config
3410     cd $depth
3411 ],[LN_S='$LN_S'])
3412
3413 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
3414 [   depth=../../..
3415     case $srcdir in
3416     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3417     .) reldir=$depth ;;
3418     *) reldir=$depth/$srcdir ;;
3419     esac
3420     $ac_aux_dir/install-sh -d runtime/etc/mono/
3421     cd runtime/etc/mono/
3422     rm -f browscap.ini
3423     $LN_S $reldir/data/browscap.ini browscap.ini
3424     cd $depth
3425 ],[LN_S='$LN_S'])
3426
3427 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
3428 [   depth=../../../../..
3429     case $srcdir in
3430     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3431     .) reldir=$depth ;;
3432     *) reldir=$depth/$srcdir ;;
3433     esac
3434     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
3435     cd runtime/etc/mono/2.0/Browsers
3436     rm -f Compat.browser
3437     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3438     cd $depth
3439 ],[LN_S='$LN_S'])
3440
3441 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
3442 [   depth=../../../../..
3443     case $srcdir in
3444     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3445     .) reldir=$depth ;;
3446     *) reldir=$depth/$srcdir ;;
3447     esac
3448     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
3449     cd runtime/etc/mono/4.0/Browsers
3450     rm -f Compat.browser
3451     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3452     cd $depth
3453 ],[LN_S='$LN_S'])
3454
3455 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
3456 [   depth=../../../../..
3457     case $srcdir in
3458     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3459     .) reldir=$depth ;;
3460     *) reldir=$depth/$srcdir ;;
3461     esac
3462     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
3463     cd runtime/etc/mono/4.5/Browsers
3464     rm -f Compat.browser
3465     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3466     cd $depth
3467 ],[LN_S='$LN_S'])
3468
3469 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
3470 [   depth=../../../..
3471     case $srcdir in
3472     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3473     .) reldir=$depth ;;
3474     *) reldir=$depth/$srcdir ;;
3475     esac
3476     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3477     cd runtime/etc/mono/4.0
3478     rm -f machine.config
3479     $LN_S $reldir/data/net_4_0/machine.config machine.config
3480     cd $depth
3481 ],[LN_S='$LN_S'])
3482
3483 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
3484 [   depth=../../../..
3485     case $srcdir in
3486     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3487     .) reldir=$depth ;;
3488     *) reldir=$depth/$srcdir ;;
3489     esac
3490     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3491     cd runtime/etc/mono/4.0
3492     rm -f web.config
3493     $LN_S $reldir/data/net_4_0/web.config web.config
3494     cd $depth
3495 ],[LN_S='$LN_S'])
3496
3497 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
3498 [   depth=../../../..
3499     case $srcdir in
3500     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3501     .) reldir=$depth ;;
3502     *) reldir=$depth/$srcdir ;;
3503     esac
3504     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3505     cd runtime/etc/mono/4.5
3506     rm -f machine.config
3507     $LN_S $reldir/data/net_4_5/machine.config machine.config
3508     cd $depth
3509 ],[LN_S='$LN_S'])
3510
3511 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
3512 [   depth=../../../..
3513     case $srcdir in
3514     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3515     .) reldir=$depth ;;
3516     *) reldir=$depth/$srcdir ;;
3517     esac
3518     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3519     cd runtime/etc/mono/4.5
3520     rm -f web.config
3521     $LN_S $reldir/data/net_4_5/web.config web.config
3522     cd $depth
3523 ],[LN_S='$LN_S'])
3524
3525 AC_CONFIG_COMMANDS([quiet-libtool], [sed -e 's/echo "copying selected/# "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool; sed -e 's/$ECHO "copying selected/# "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool])
3526
3527 AC_OUTPUT([
3528 Makefile
3529 mono-core.spec
3530 mono-uninstalled.pc
3531 scripts/mono-find-provides
3532 scripts/mono-find-requires
3533 mono/Makefile
3534 mono/utils/Makefile
3535 mono/metadata/Makefile
3536 mono/dis/Makefile
3537 mono/cil/Makefile
3538 mono/arch/Makefile
3539 mono/arch/x86/Makefile
3540 mono/arch/amd64/Makefile
3541 mono/arch/ppc/Makefile
3542 mono/arch/sparc/Makefile
3543 mono/arch/s390x/Makefile
3544 mono/arch/arm/Makefile
3545 mono/arch/arm64/Makefile
3546 mono/arch/ia64/Makefile
3547 mono/arch/mips/Makefile
3548 mono/tests/Makefile
3549 mono/tests/tests-config
3550 mono/tests/assemblyresolve/Makefile
3551 mono/tests/cas/Makefile
3552 mono/tests/cas/assembly/Makefile
3553 mono/tests/cas/demand/Makefile
3554 mono/tests/cas/inheritance/Makefile
3555 mono/tests/cas/linkdemand/Makefile
3556 mono/tests/cas/threads/Makefile
3557 mono/tests/gc-descriptors/Makefile
3558 mono/unit-tests/Makefile
3559 mono/benchmark/Makefile
3560 mono/monograph/Makefile
3561 mono/io-layer/Makefile
3562 mono/mini/Makefile
3563 mono/profiler/Makefile
3564 m4/Makefile
3565 ikvm-native/Makefile
3566 scripts/Makefile
3567 man/Makefile
3568 docs/Makefile
3569 data/Makefile
3570 data/net_2_0/Makefile
3571 data/net_4_0/Makefile
3572 data/net_4_5/Makefile
3573 data/net_2_0/Browsers/Makefile
3574 data/net_4_0/Browsers/Makefile
3575 data/net_4_5/Browsers/Makefile
3576 data/mint.pc
3577 data/mono-2.pc
3578 data/monosgen-2.pc
3579 data/mono.pc
3580 data/mono-cairo.pc
3581 data/mono-nunit.pc
3582 data/mono-options.pc
3583 data/mono-lineeditor.pc
3584 data/monodoc.pc
3585 data/dotnet.pc
3586 data/dotnet35.pc
3587 data/wcf.pc
3588 data/cecil.pc
3589 data/system.web.extensions_1.0.pc
3590 data/system.web.extensions.design_1.0.pc
3591 data/system.web.mvc.pc
3592 data/system.web.mvc2.pc
3593 data/system.web.mvc3.pc
3594 data/aspnetwebstack.pc
3595 data/reactive.pc
3596 samples/Makefile
3597 support/Makefile
3598 data/config
3599 tools/Makefile
3600 tools/locale-builder/Makefile
3601 tools/sgen/Makefile
3602 runtime/Makefile
3603 msvc/Makefile
3604 po/Makefile
3605 ])
3606
3607 # Update all submodules recursively to ensure everything is checked out
3608 $srcdir/scripts/update_submodules
3609
3610 if test x$host_win32 = xyes; then
3611    # Get rid of 'cyg' prefixes in library names
3612    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
3613    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
3614    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
3615    # executable doesn't work...
3616    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
3617 fi
3618
3619 if test x$platform_darwin = xyes; then
3620    # This doesn't seem to be required and it slows down parallel builds
3621    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
3622 fi
3623
3624 (
3625   case $prefix in
3626   NONE) prefix=$ac_default_prefix ;;
3627   esac
3628   case $exec_prefix in
3629   NONE) exec_prefix='${prefix}' ;;
3630   esac
3631
3632   #
3633   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
3634   # any existing config.make.  This allows people to share the same source tree
3635   # with different build directories, one native and one cross
3636   #
3637   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
3638
3639     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
3640
3641     echo "prefix=$prefix" > $mcs_topdir/build/config.make
3642     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
3643     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
3644     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
3645     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
3646     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
3647     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
3648     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
3649
3650     case $INSTALL in
3651     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
3652     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
3653     esac
3654
3655     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
3656
3657     export VERSION
3658     [myver=$($AWK 'BEGIN {
3659       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
3660       if(length(vsplit [1]) > 4) {
3661         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
3662       }
3663       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
3664     }')]
3665
3666     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
3667
3668     if test x$platform_darwin = xyes; then
3669       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
3670     fi
3671
3672         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
3673            enable_system_aot=yes
3674         fi
3675
3676     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
3677       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
3678     fi
3679
3680     if test x$DISABLE_MCS_DOCS = xyes; then
3681       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
3682     fi
3683
3684     if test x$has_extension_module != xno; then
3685         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
3686     fi
3687
3688         default_profile=net_4_5
3689     if test -z "$INSTALL_MONODROID_TRUE"; then :
3690                 default_profile=monodroid
3691     fi
3692     if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
3693                 default_profile=monotouch
3694     fi
3695         if test -z "$INSTALL_XAMMAC_TRUE"; then :
3696                 default_profile=xammac
3697         fi
3698     if test -z "$INSTALL_4_5_TRUE"; then :
3699                 default_profile=net_4_5
3700     fi
3701     
3702     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
3703     
3704     if test "x$test_bcl_opt" = "xyes"; then    
3705       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
3706     fi
3707
3708   fi
3709
3710   # if we have an olive folder, override the default settings
3711   if test -d $olivedir; then
3712
3713     if test x$cross_compiling = xno && test x$enable_olive_build != xno; then
3714
3715       test -w $srcdir/$olivedir/build || chmod +w $srcdir/$olivedir/build
3716
3717       echo "prefix=$prefix" > $srcdir/$olivedir/build/config.make
3718       echo "exec_prefix=$exec_prefix" >> $srcdir/$olivedir/build/config.make
3719       echo 'mono_libdir=${exec_prefix}/lib' >> $srcdir/$olivedir/build/config.make
3720       echo 'MCS_FLAGS = $(PLATFORM_DEBUG_FLAGS)' >> $srcdir/$olivedir/build/config.make
3721       echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $srcdir/$olivedir/build/config.make
3722       echo "MONO_VERSION = $myver" >> $srcdir/$olivedir/build/config.make
3723     fi
3724   fi
3725
3726 )
3727
3728 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
3729
3730 echo "
3731         mcs source:    $mcsdir
3732
3733    Engine:
3734         Host:          $host
3735         Target:        $target
3736         GC:            $gc_msg 
3737         TLS:           $with_tls
3738         SIGALTSTACK:   $with_sigaltstack
3739         Engine:        $jit_status
3740         oprofile:      $OPROFILE
3741         BigArrays:     $enable_big_arrays
3742         DTrace:        $enable_dtrace
3743         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
3744
3745    Libraries:
3746         .NET 4.5:      $with_profile4_5
3747         MonoDroid:     $with_monodroid
3748         MonoTouch:     $with_monotouch
3749         Xamarin.Mac:   $with_xammac
3750         JNI support:   $jdk_headers_found
3751         libgdiplus:    $libgdiplus_msg
3752         zlib:          $zlib_msg
3753         $disabled
3754 "
3755 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
3756    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
3757 fi