Reimplemented much of the kqueue-based file watcher so that watching subdirectories...
[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, [3.6.1],
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 2000 is required that includes Internet Explorer 5.01
119                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0500 -D_WIN32_WINNT=0x0500 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
120                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32"
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         *-*-*freebsd*)
146                 host_win32=no
147                 if test "x$PTHREAD_CFLAGS" = "x"; then
148                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
149                         libmono_cflags=
150                 else
151                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
152                         libmono_cflags="$PTHREAD_CFLAGS"
153                 fi
154                 if test "x$PTHREAD_LIBS" = "x"; then
155                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
156                         libmono_ldflags="-pthread"
157                 else
158                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
159                         libmono_ldflags="$PTHREAD_LIBS"
160                 fi
161                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
162                 need_link_unlink=yes
163                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
164                 libdl=
165                 libgc_threads=pthreads
166                 use_sigposix=yes
167                 has_dtrace=yes
168                 ;;
169         *-*-*openbsd*)
170                 host_win32=no
171                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DPLATFORM_BSD -D_REENTRANT -DUSE_MMAP"
172                 if test "x$disable_munmap" != "xyes"; then
173                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
174                 fi
175                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
176                 LDFLAGS="$LDFLAGS -pthread"
177                 need_link_unlink=yes
178                 AC_DEFINE(PTHREAD_POINTER_ID)
179                 libdl=
180                 libgc_default=boehm
181                 libgc_threads=pthreads
182                 with_sigaltstack=no
183                 use_sigposix=yes
184                 ;;
185         *-*-linux-android*)
186                 host_win32=no
187                 platform_android=yes
188                 AC_DEFINE(PLATFORM_ANDROID,1,[Targeting the Android platform])
189                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
190
191                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
192                 if test "x$disable_munmap" != "xyes"; then
193                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
194                 fi
195                 libmono_cflags="-D_REENTRANT"
196                 libdl="-ldl"
197                 libgc_threads=pthreads
198                 use_sigposix=yes
199
200                 with_tls=pthread
201                 with_sigaltstack=no
202                 with_static_mono=no
203
204                 # Android doesn't support boehm, as it's missing <link.h>
205                 support_boehm=no
206                 with_gc=sgen
207
208                 # isinf(3) requires -lm; see isinf check below
209                 LDFLAGS="$LDFLAGS -lm"
210
211                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
212                 # PAGE_SIZE; breaks mono/io-layer/collection.c
213                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
214                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
215                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
216
217                 # The configure check can't detect this
218                 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
219
220                 # to bypass the underscore linker check, can't work when cross-compiling
221                 mono_cv_uscore=yes
222                 mono_cv_clang=no
223                 ;;
224         *-*-linux*)
225                 host_win32=no
226                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
227                 if test "x$disable_munmap" != "xyes"; then
228                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
229                 fi
230                 libmono_cflags="-D_REENTRANT"
231                 libdl="-ldl"
232                 libgc_threads=pthreads
233                 use_sigposix=yes
234                 if test "x$cross_compiling" != "xno"; then
235                         # to bypass the underscore linker check, not
236                         # available during cross-compilation
237                         mono_cv_uscore=no
238                 fi
239                 case "$host" in
240                 aarch64-*)
241                         support_boehm=no
242                         with_gc=sgen
243                         ;;
244                 esac
245                 ;;
246         *-*-nacl*)
247                 host_win32=no
248                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
249                 if test "x$disable_munmap" != "xyes"; then
250                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
251                 fi
252                 libmono_cflags="-D_REENTRANT"
253                 libdl=
254                 libgc_threads=pthreads
255                 libgc_default=boehm
256                 use_sigposix=yes
257                 ikvm_native=no
258                 AC_DEFINE(DISABLE_SOCKETS,1,[Disable sockets support])
259                 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
260                 ;;
261         *-*-hpux*)
262                 host_win32=no
263                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
264                 # +ESdbgasm only valid on bundled cc on RISC
265                 # silently ignored for ia64
266                 if test $GCC != "yes"; then
267                         CFLAGS="$CFLAGS +ESdbgasm"
268                         # Arrange for run-time dereferencing of null
269                         # pointers to produce a SIGSEGV signal.
270                         LDFLAGS="$LDFLAGS -z"
271                 fi
272                 CFLAGS="$CFLAGS +ESdbgasm"
273                 LDFLAGS="$LDFLAGS -z"
274                 libmono_cflags="-D_REENTRANT"
275                 libmono_ldflags="-lpthread"
276                 libgc_threads=pthreads
277                 need_link_unlink=yes
278                 use_sigposix=yes
279                 ;;
280         *-*-solaris*)
281                 host_win32=no
282                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
283                 need_link_unlink=yes
284                 libmono_cflags="-D_REENTRANT"
285                 libgc_threads=pthreads
286                 # This doesn't seem to work on solaris/x86, but the configure test runs
287                 with_tls=pthread
288                 has_dtrace=yes
289                 use_sigposix=yes
290                 enable_solaris_tar_check=yes
291                 ;;
292         *-*-darwin*)
293                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
294                 host_win32=no
295                 platform_darwin=yes
296                 target_mach=yes
297                 CPPFLAGS="$CPPFLAGS -no-cpp-precomp -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
298                 CPPFLAGS="$CPPFLAGS -DGetCurrentProcess=MonoGetCurrentProcess -DGetCurrentThread=MonoGetCurrentThread -DCreateEvent=MonoCreateEvent"
299                 libmono_cflags="-D_THREAD_SAFE"
300                 need_link_unlink=yes
301                 AC_DEFINE(PTHREAD_POINTER_ID)
302                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
303                 no_version_script=yes
304                 libdl=
305                 libgc_threads=pthreads
306                 has_dtrace=yes
307                 if test "x$cross_compiling" = "xyes"; then
308                         has_broken_apple_cpp=yes
309                 fi
310                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
311                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
312                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
313                 case "$host" in
314                         dnl Snow Leopard and newer config.guess reports as this
315                         i*86-*-darwin*)
316                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
317                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
318                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
319                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
320                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
321                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
322                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
323                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
324                                 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_CPPFLAGS"
325                                 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
326                                 ;;
327                         x*64-*-darwin*)
328                                 ;;
329                         arm*-darwin*)
330                                 has_dtrace=no
331                                 ;;                      
332                 esac
333                 ;;
334         *-*-haiku*)
335                 host_win32=no
336                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
337                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
338                 libdl=
339                 LIBS="$LIBS -lnetwork"
340                 need_link_unlink=yes
341                 AC_DEFINE(PTHREAD_POINTER_ID)
342                 libgc_threads=pthreads
343                 use_sigposix=yes
344                 ;;
345         *)
346                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
347                 host_win32=no
348                 libdl="-ldl"
349                 ;;
350 esac
351 AC_MSG_RESULT(ok)
352
353 if test x$need_link_unlink = xyes; then
354    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
355 fi
356
357 AC_SUBST(extra_runtime_ldflags)
358 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
359 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
360 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
361 AM_CONDITIONAL(PLATFORM_DARWIN, test x$platform_darwin = xyes)
362 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
363 AM_CONDITIONAL(PLATFORM_ANDROID, test x$platform_android = xyes)
364
365 AC_CHECK_TOOL(CC, gcc, gcc)
366 AC_PROG_CC
367 AC_CHECK_TOOL(CXX, g++, g++)
368 AC_PROG_CXX
369 AM_PROG_AS
370 AC_PROG_INSTALL
371 AC_PROG_AWK
372 AM_PROG_CC_C_O
373 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
374 : ${CCAS='$(CC)'}
375 # Set ASFLAGS if not already set.
376 : ${CCASFLAGS='$(CFLAGS)'}
377 AC_SUBST(CCAS)
378 AC_SUBST(CCASFLAGS)
379
380 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
381 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
382 if test "x$CXX" = "xg++"; then
383         if test "x$GXX" != "xyes"; then
384                 # automake/libtool is so broken, it requires g++ even if the c++ sources
385                 # are inside automake conditionals
386                 AC_MSG_ERROR([You need to install g++])
387         fi
388 fi
389
390 dnl may require a specific autoconf version
391 dnl AC_PROG_CC_FOR_BUILD
392 dnl CC_FOR_BUILD not automatically detected
393 CC_FOR_BUILD=$CC
394 CFLAGS_FOR_BUILD=$CFLAGS
395 BUILD_EXEEXT=
396 if test "x$cross_compiling" = "xyes"; then
397         CC_FOR_BUILD=cc
398         CFLAGS_FOR_BUILD=
399         BUILD_EXEEXT=""
400 fi
401 AC_SUBST(CC_FOR_BUILD)
402 AC_SUBST(CFLAGS_FOR_BUILD)
403 AC_SUBST(HOST_CC)
404 AC_SUBST(BUILD_EXEEXT)
405
406 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
407 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
408
409 # Set STDC_HEADERS
410 AC_HEADER_STDC
411 AC_LIBTOOL_WIN32_DLL
412 # This causes monodis to not link correctly
413 #AC_DISABLE_FAST_INSTALL
414 AM_PROG_LIBTOOL
415 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
416 DOLT
417
418 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
419 AC_SUBST(export_ldflags)
420
421 # Test whenever ld supports -version-script
422 AC_PROG_LD
423 AC_PROG_LD_GNU
424 if test "x$lt_cv_prog_gnu_ld" = "xno"; then
425    no_version_script=yes
426 fi
427
428 AM_ICONV()
429
430 AM_CONDITIONAL(NO_VERSION_SCRIPT, test x$no_version_script = xyes)
431
432 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)
433 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)
434 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
435                   [], [], [#include <stddef.h>
436                   #include <sys/socket.h>
437                   #include <linux/socket.h>])
438
439 AC_CHECK_HEADERS(sys/user.h, [], [],
440 [
441 #ifdef HAVE_SYS_PARAM_H
442 # include <sys/param.h>
443 #endif
444 ])
445
446 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
447 if test x$have_zlib = xyes; then
448    AC_TRY_COMPILE([#include <zlib.h>], [
449    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
450    return 0;
451    #else
452    #error No good zlib found
453    #endif
454    ],[
455         AC_MSG_RESULT(Using system zlib)
456         zlib_msg="system zlib"
457         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
458    ],[
459         AC_MSG_RESULT(Using embedded zlib)
460         have_zlib=no
461         zlib_msg="bundled zlib"
462    ])
463 fi
464
465 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
466 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
467
468 # for mono/metadata/debug-symfile.c
469 AC_CHECK_HEADERS(elf.h)
470
471 # for support
472 AC_CHECK_HEADERS(poll.h)
473 AC_CHECK_HEADERS(sys/poll.h)
474 AC_CHECK_HEADERS(sys/wait.h)
475 AC_CHECK_HEADERS(grp.h)
476 AC_CHECK_HEADERS(syslog.h)
477
478 # for mono/dis
479 AC_CHECK_HEADERS(wchar.h)
480 AC_CHECK_HEADERS(ieeefp.h)
481 AC_MSG_CHECKING(for isinf)
482 AC_TRY_LINK([#include <math.h>], [
483         int f = isinf (1.0);
484 ], [
485         AC_MSG_RESULT(yes)
486         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
487 ], [
488         # We'll have to use signals
489         AC_MSG_RESULT(no)
490 ])
491 # mingw
492 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
493         AC_TRY_LINK([#include <math.h>], 
494         [ _finite(0.0); ], 
495         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
496         AC_MSG_RESULT(no)))
497
498 # for Linux statfs support
499 AC_CHECK_HEADERS(linux/magic.h)
500
501 # not 64 bit clean in cross-compile
502 AC_CHECK_SIZEOF(void *, 4)
503
504 AC_CACHE_CHECK([for clang],
505         mono_cv_clang,[
506         AC_TRY_COMPILE([], [
507                 #ifdef __clang__
508                 #else
509                 #error "FAILED"
510                 #endif
511                 return 0;
512         ],
513         [mono_cv_clang=yes],
514         [mono_cv_clang=no],
515         [])
516 ])
517
518 WARN=''
519 if test x"$GCC" = xyes; then
520         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value'
521                 # The runtime code does not respect ANSI C strict aliasing rules
522                 CFLAGS="$CFLAGS -fno-strict-aliasing"
523
524                 # We rely on signed overflow to behave
525                 CFLAGS="$CFLAGS -fwrapv"
526
527                 ORIG_CFLAGS=$CFLAGS
528                 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
529                 AC_MSG_CHECKING(for -Wdeclaration-after-statement option to gcc)
530                 AC_TRY_COMPILE([],[
531                                 return 0;
532                 ], [
533                    AC_MSG_RESULT(yes)
534                 ], [
535                    AC_MSG_RESULT(no)
536                    CFLAGS=$ORIG_CFLAGS
537                 ])
538
539                 ORIG_CFLAGS=$CFLAGS
540                 # Check for the normal version, since gcc ignores unknown -Wno options
541                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
542                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
543                 AC_TRY_COMPILE([],[
544                                 return 0;
545                 ], [
546                    AC_MSG_RESULT(yes)
547                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
548                 ], [
549                    AC_MSG_RESULT(no)
550                    CFLAGS=$ORIG_CFLAGS
551                 ])
552
553                 if test "x$mono_cv_clang" = "xyes"; then
554                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
555                    WARN="$WARN -Qunused-arguments"
556                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign"
557                 fi
558 else
559         # The Sun Forte compiler complains about inline functions that access static variables
560         # so disable all inlining.
561         case "$host" in
562         *-*-solaris*)
563                 CFLAGS="$CFLAGS -Dinline="
564                 ;;
565         esac
566 fi
567 CFLAGS="$CFLAGS -g $WARN"
568 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
569
570 # Where's the 'mcs' source tree?
571 if test -d $srcdir/mcs; then
572   mcsdir=mcs
573 else
574   mcsdir=../mcs
575 fi
576
577 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
578         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
579                 mcsdir=$with_mcs_path
580         fi
581 )
582
583 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
584
585 #
586 # A sanity check to catch cases where the package was unpacked
587 # with an ancient tar program (Solaris)
588 #
589 AC_ARG_ENABLE(solaris-tar-check,
590 [  --disable-solaris-tar-check    disable solaris tar check],
591    do_solaris_tar_check=no, do_solaris_tar_check=yes)
592
593 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
594         AC_MSG_CHECKING(integrity of package)
595         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
596         then
597                 AC_MSG_RESULT(ok)
598         else
599                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
600                 AC_MSG_ERROR([$errorm])
601         fi
602 fi
603
604 if test "x$with_mcs_path" != "x"; then
605 mcs_topdir=$(cd "$mcsdir" && pwd)
606 mcs_topdir_from_srcdir=$mcs_topdir
607 else
608 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
609 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
610 fi
611
612 # Convert mcs_topdir* paths to Windows syntax.
613 if test x$cross_compiling$host_win32 = xnoyes; then
614   mcs_topdir=$(cygpath -m $mcs_topdir)
615   case $mcs_topdir_from_srcdir in
616     /cygdrive/*)
617         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
618         ;;
619   esac
620 fi
621
622 AC_SUBST([mcs_topdir])
623 AC_SUBST([mcs_topdir_from_srcdir])
624
625 # Where's the 'olive' source tree?
626 if test -d $srcdir/olive; then
627   olivedir=olive
628 else
629   olivedir=../olive
630 fi
631
632 if test -d $srcdir/$olivedir; then
633 olive_topdir='$(top_srcdir)/'$olivedir
634 fi
635
636 # gettext: prepare the translation directories. 
637 # we do not configure the full gettext, as we consume it dynamically from C#
638 AM_PO_SUBDIRS
639
640 if test "x$USE_NLS" = "xyes"; then
641    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
642
643    if test "x$HAVE_MSGFMT" = "xno"; then
644           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
645    fi
646 fi
647
648 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
649
650 pkg_config_path=
651 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
652         if test x$with_crosspkgdir = "x"; then
653                 if test -s $PKG_CONFIG_PATH; then
654                         pkg_config_path=$PKG_CONFIG_PATH
655                 fi
656         else
657                 pkg_config_path=$with_crosspkgdir
658                 PKG_CONFIG_PATH=$pkg_config_path
659                 export PKG_CONFIG_PATH
660         fi
661 )
662
663 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
664 if test x$werror_flag = xyes; then
665         WERROR_CFLAGS="-Werror"
666 fi
667 AC_SUBST([WERROR_CFLAGS])
668
669 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
670 AC_CONFIG_SUBDIRS(eglib)
671
672 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
673 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
674 BUILD_GLIB_CFLAGS="$GLIB_CFLAGS"
675 BUILD_GLIB_LIBS="$GLIB_LIBS"
676 GMODULE_CFLAGS="$GLIB_CFLAGS"
677 GMODULE_LIBS="$GLIB_LIBS"
678   
679 AC_SUBST(GLIB_CFLAGS)
680 AC_SUBST(GLIB_LIBS)
681 AC_SUBST(GMODULE_CFLAGS)
682 AC_SUBST(GMODULE_LIBS)
683 AC_SUBST(BUILD_GLIB_CFLAGS)
684 AC_SUBST(BUILD_GLIB_LIBS)
685
686 # Enable support for fast thread-local storage
687 # Some systems have broken support, so we allow to disable it.
688 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
689
690 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
691 # This does not work on some platforms (bug #55253)
692 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
693
694 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
695 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
696 # Same as --with-shared_mono=no
697 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
698
699 if test "x$enable_static" = "xno"; then
700    with_static_mono=no
701 fi
702
703 if test "x$enable_shared" = "xno"; then
704    with_shared_mono=no
705 fi
706
707 if test "x$enable_libraries" = "xno"; then
708    with_shared_mono=no
709 fi
710
711 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
712
713 case $host in
714 *nacl* ) with_shared_mono=yes;;
715 esac
716
717 if test "x$host_win32" = "xyes"; then
718    # Boehm GC requires the runtime to be in its own dll
719    with_static_mono=no
720 fi
721
722 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
723 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
724 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
725
726 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
727 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
728         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
729         ORIG_CFLAGS=$CFLAGS
730         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
731         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
732         AC_TRY_COMPILE([], [
733                 return 0;
734         ], [
735            AC_MSG_RESULT(yes)
736            # Pass it to libgc as well
737            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
738         ], [
739            AC_MSG_RESULT(no)
740            CFLAGS=$ORIG_CFLAGS
741         ])
742 fi
743
744 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
745
746 if test x$enable_small_config = xyes; then
747         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
748         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
749 fi
750
751 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=$enableval, enable_system_aot=default)
752
753 DISABLED_FEATURES=none
754
755 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
756      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
757      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
758          security, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
759 [
760         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
761                 eval "mono_feature_disable_$feature='yes'"
762         done
763         DISABLED_FEATURES=$enable_minimal
764         disabled="Disabled:      $enable_minimal"
765 ],[])
766
767 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
768
769 if test "x$mono_feature_disable_aot" = "xyes"; then
770         AC_DEFINE(DISABLE_AOT_COMPILER, 1, [Disable AOT Compiler])
771         AC_MSG_NOTICE([Disabled AOT compiler])
772 fi
773
774 if test "x$mono_feature_disable_profiler" = "xyes"; then
775         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
776         AC_MSG_NOTICE([Disabled support for the profiler])
777 fi
778 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
779
780 if test "x$mono_feature_disable_decimal" = "xyes"; then
781         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
782         AC_MSG_NOTICE([Disabled support for decimal])
783 fi
784
785 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
786         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
787         AC_MSG_NOTICE([Disabled support for P/Invoke])
788 fi
789
790 if test "x$mono_feature_disable_debug" = "xyes"; then
791         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
792         AC_MSG_NOTICE([Disabled support for runtime debugging])
793 fi
794
795 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
796         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
797         mono_feature_disable_reflection_emit_save=yes
798         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
799 fi
800
801 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
802         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
803         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
804 fi
805
806 if test "x$mono_feature_disable_large_code" = "xyes"; then
807         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
808         AC_MSG_NOTICE([Disabled support for large assemblies])
809 fi
810
811 if test "x$mono_feature_disable_logging" = "xyes"; then
812         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
813         AC_MSG_NOTICE([Disabled support for logging])
814 fi
815
816 if test "x$mono_feature_disable_com" = "xyes"; then
817         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
818         AC_MSG_NOTICE([Disabled COM support])
819 fi
820
821 if test "x$mono_feature_disable_ssa" = "xyes"; then
822         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
823         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
824 fi
825
826 if test "x$mono_feature_disable_generics" = "xyes"; then
827         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
828         AC_MSG_NOTICE([Disabled Generics Support])
829 fi
830
831 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
832         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
833         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
834 fi
835
836 if test "x$mono_feature_disable_portability" = "xyes"; then
837         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
838         AC_MSG_NOTICE([Disabled IO Portability layer])
839 fi
840
841 if test "x$mono_feature_disable_attach" = "xyes"; then
842         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
843         AC_MSG_NOTICE([Disabled agent attach])
844 fi
845
846 if test "x$mono_feature_disable_full_messages" = "xyes"; then
847         AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
848         AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
849 fi
850
851 if test "x$mono_feature_disable_verifier" = "xyes"; then
852         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
853         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
854 fi
855
856 if test "x$mono_feature_disable_jit" = "xyes"; then
857         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
858         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
859 fi
860
861 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
862
863 if test "x$mono_feature_disable_simd" = "xyes"; then
864         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
865         AC_MSG_NOTICE([Disabled SIMD support])
866 fi
867
868 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
869         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
870         AC_MSG_NOTICE([Disabled Soft Debugger.])
871 fi
872
873 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
874         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
875         AC_MSG_NOTICE([Disabled Performance Counters.])
876 fi
877 if test "x$mono_feature_disable_normalization" = "xyes"; then
878         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
879         AC_MSG_NOTICE([Disabled String normalization support.])
880 fi
881
882 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
883         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
884         AC_MSG_NOTICE([Disabled Assembly remapping.])
885 fi
886
887 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
888         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
889         AC_MSG_NOTICE([Disabled Shared perfcounters.])
890 fi
891
892 if test "x$mono_feature_disable_appdomains" = "xyes"; then
893         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
894         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
895 fi
896
897 if test "x$mono_feature_disable_remoting" = "xyes"; then
898         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
899         AC_MSG_NOTICE([Disabled remoting])
900 fi
901
902 if test "x$mono_feature_disable_security" = "xyes"; then
903         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
904         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
905 fi
906
907 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
908         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
909         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
910 fi
911
912 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
913         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
914         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
915 fi
916
917 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
918         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
919         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
920 fi
921
922 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
923         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
924         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
925 fi
926
927 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
928         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
929         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
930 fi
931
932 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
933 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
934
935 has_extension_module=no
936 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
937 [
938         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
939                 if test x$extension = xdefault ; then
940                         has_extension_module=yes;
941                 fi
942         done
943         if test x$enable_extension_module = xyes; then
944                 has_extension_module=yes;
945         fi
946 ], [])
947
948 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
949
950 if test x$has_extension_module != xno ; then
951         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
952         AC_MSG_NOTICE([Enabling mono extension module.])
953 fi
954
955 AC_ARG_ENABLE(gsharing, [  --enable-gsharing Enable gsharing], enable_gsharing=$enableval, enable_gsharing=no)
956 if test x$enable_gsharing = xyes; then
957         AC_DEFINE(ENABLE_GSHAREDVT,1,[Gsharing])
958 fi
959
960 AC_ARG_ENABLE(native-types, [  --enable-native-types Enable native types], enable_native_types=$enableval, enable_native_types=no)
961 if test x$enable_native_types = xyes; then
962         AC_DEFINE(MONO_NATIVE_TYPES,1,[native types])
963 fi
964
965 AC_MSG_CHECKING(for visibility __attribute__)
966 AC_COMPILE_IFELSE([
967         AC_LANG_SOURCE([[
968                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
969                 int main () { doit (); return 0; }
970         ]])
971 ], [
972    have_visibility_hidden=yes
973    AC_MSG_RESULT(yes)
974 ], [
975    have_visibility_hidden=no
976    AC_MSG_RESULT(no)
977 ])
978
979 AC_MSG_CHECKING(for deprecated __attribute__)
980 AC_TRY_COMPILE([
981      int doit (void) __attribute__ ((deprecated));
982      int doit (void) { return 0; }
983 ], [
984         return 0;
985 ], [
986    have_deprecated=yes
987    AC_MSG_RESULT(yes)
988 ], [
989    have_deprecated=no
990    AC_MSG_RESULT(no)
991 ])
992
993 dnl
994 dnl Boehm GC configuration
995 dnl
996
997 AC_ARG_WITH(libgc,   [  --with-gc=boehm,included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=$libgc_default])
998
999 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1000 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1001
1002 AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1003 if test x$enable_parallel_mark = xyes; then
1004         libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1005 fi
1006
1007 gc_headers=no
1008 gc_msg=""
1009 use_included_gc=no
1010 LIBGC_CPPFLAGS=
1011 LIBGC_LIBS=
1012 LIBGC_STATIC_LIBS=
1013 libgc_dir=
1014 case "x$libgc" in
1015         xboehm|xbohem|xyes)
1016                 AC_CHECK_HEADERS(gc.h gc/gc.h, gc_headers=yes)
1017                 AC_CHECK_LIB(gc, GC_malloc, found_boehm="yes",,$libdl)
1018
1019                 if test "x$found_boehm" != "xyes"; then
1020                         AC_MSG_ERROR("GC requested but libgc not found! Install libgc or run configure with --with-gc=none.")
1021                 fi
1022                 if test "x$gc_headers" != "xyes"; then
1023                         AC_MSG_ERROR("GC requested but header files not found! You may need to install them by hand.")
1024                 fi
1025
1026                 LIBGC_LIBS="-lgc $libdl"
1027                 LIBGC_STATIC_LIBS="$LIBGC_LIBS"
1028                 libmono_ldflags="$libmono_ldflags -lgc"
1029                 BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1030
1031                 # AC_CHECK_FUNCS does not work for some reason...
1032                 AC_CHECK_LIB(gc, GC_gcj_malloc, found_gcj_malloc="yes",,$libdl)
1033                 if test "x$found_gcj_malloc" = "xyes"; then
1034                         BOEHM_DEFINES="-DHAVE_GC_GCJ_MALLOC $BOEHM_DEFINES"
1035                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "System Boehm (with typed GC)", [GC description])
1036                         gc_msg="System Boehm with typed GC"
1037                 else
1038                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "System Boehm (no typed GC)", [GC description])
1039                         gc_msg="System Boehm (without typed GC)"
1040                 fi
1041                 AC_CHECK_LIB(gc, GC_enable, found_gc_enable="yes",,$libdl)
1042                 if test "x$found_gc_enable" = "xyes"; then
1043                         BOEHM_DEFINES="-DHAVE_GC_ENABLE $BOEHM_DEFINES"
1044                 fi
1045
1046                 # check whether we need to explicitly allow
1047                 # thread registering
1048                 AC_CHECK_LIB(gc, GC_allow_register_threads, found_allow_register_threads="yes",,$libdl)
1049                 if test "x$found_allow_register_threads" = "xyes"; then
1050                    AC_DEFINE(HAVE_GC_ALLOW_REGISTER_THREADS, 1, [GC requires thread registration])
1051                 fi
1052                 ;;
1053
1054         xincluded)
1055                 use_included_gc=yes
1056                 if test "x$support_boehm" = "xyes"; then
1057                         libgc_dir=libgc
1058                 fi
1059
1060                 LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1061                 LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1062                 LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1063
1064                 BOEHM_DEFINES="-DHAVE_BOEHM_GC -DHAVE_GC_H -DUSE_INCLUDED_LIBGC -DHAVE_GC_GCJ_MALLOC -DHAVE_GC_ENABLE"
1065
1066                 if test x$target_win32 = xyes; then
1067                         BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1068                         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1069                 fi
1070
1071                 gc_msg="Included Boehm GC with typed GC"
1072                 if test x$enable_parallel_mark = xyes; then
1073                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1074                         gc_msg="$gc_msg and parallel mark"
1075                 else
1076                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1077                 fi
1078                 ;;
1079
1080         xsgen)
1081                 AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1082                 ;;
1083
1084         xnone)
1085                 AC_MSG_WARN("Compiling mono without GC.")
1086                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1087                 AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1088                 gc_msg="none"
1089                 ;;
1090         *)
1091                 AC_MSG_ERROR([Invalid argument to --with-gc.])
1092                 ;;
1093 esac
1094
1095 AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1096 if test "x$large_heap" = "xyes"; then
1097    CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1098 fi
1099
1100 AM_CONDITIONAL(INCLUDED_LIBGC, test x$use_included_gc = xyes)
1101 AC_SUBST(LIBGC_CPPFLAGS)
1102 AC_SUBST(LIBGC_LIBS)
1103 AC_SUBST(LIBGC_STATIC_LIBS)
1104 AC_SUBST(libgc_dir)
1105 AC_SUBST(BOEHM_DEFINES)
1106
1107 dnl
1108 dnl End of Boehm GC Configuration
1109 dnl
1110
1111 dnl *************************************
1112 dnl *** Checks for zero length arrays ***
1113 dnl *************************************
1114 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1115 AC_TRY_COMPILE([
1116         struct s {
1117                 int  length;
1118                 char data [0];
1119         };
1120 ], [], [
1121         AC_MSG_RESULT(yes)
1122         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1123 ], [
1124         AC_MSG_RESULT(no)
1125         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1126 ])
1127
1128 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1129
1130 if test x$target_win32 = xno; then
1131
1132         dnl hires monotonic clock support
1133         AC_SEARCH_LIBS(clock_gettime, rt)
1134
1135         dnl dynamic loader support
1136         AC_CHECK_FUNC(dlopen, DL_LIB="",
1137                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1138         )
1139         if test x$dl_support = xno; then
1140                 AC_MSG_WARN([No dynamic loading support available])
1141         else
1142                 LIBS="$LIBS $DL_LIB"
1143                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1144                 dnl from glib's configure.ac
1145                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1146                         mono_cv_uscore,[
1147                         AC_TRY_RUN([#include <dlfcn.h>
1148                         int mono_underscore_test (void) { return 42; }
1149                         int main() {
1150                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1151                           handle = dlopen ((void*)0, 0);
1152                           if (handle) {
1153                             f1 = dlsym (handle, "mono_underscore_test");
1154                             f2 = dlsym (handle, "_mono_underscore_test");
1155                           } return (!f2 || f1);
1156                         }],
1157                                 [mono_cv_uscore=yes],
1158                                 [mono_cv_uscore=no],
1159                         [])
1160                 ])
1161                 if test "x$mono_cv_uscore" = "xyes"; then
1162                         MONO_DL_NEED_USCORE=1
1163                 else
1164                         MONO_DL_NEED_USCORE=0
1165                 fi
1166                 AC_SUBST(MONO_DL_NEED_USCORE)
1167                 AC_CHECK_FUNC(dlerror)
1168         fi
1169
1170         dnl ******************************************************************
1171         dnl *** Checks for the IKVM JNI interface library                  ***
1172         dnl ******************************************************************
1173         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])
1174
1175         ikvm_native_dir=
1176         if test x$with_ikvm_native = xyes; then
1177                 ikvm_native_dir=ikvm-native
1178                 jdk_headers_found="IKVM Native"
1179         fi
1180
1181         AC_SUBST(ikvm_native_dir)
1182
1183         AC_CHECK_HEADERS(execinfo.h)
1184
1185         AC_CHECK_HEADERS(sys/auxv.h)
1186
1187         AC_CHECK_FUNCS(getgrgid_r)
1188         AC_CHECK_FUNCS(getgrnam_r)
1189         AC_CHECK_FUNCS(getpwnam_r)
1190         AC_CHECK_FUNCS(getpwuid_r)
1191         AC_CHECK_FUNCS(getresuid)
1192         AC_CHECK_FUNCS(setresuid)
1193         AC_CHECK_FUNCS(kqueue)
1194         AC_CHECK_FUNCS(backtrace_symbols)
1195         AC_CHECK_FUNCS(mkstemp)
1196         AC_CHECK_FUNCS(mmap)
1197         AC_CHECK_FUNCS(madvise)
1198         AC_CHECK_FUNCS(getrusage)
1199         AC_CHECK_FUNCS(getpriority)
1200         AC_CHECK_FUNCS(setpriority)
1201         AC_CHECK_FUNCS(dl_iterate_phdr)
1202         AC_CHECK_FUNCS(dladdr)
1203         AC_CHECK_FUNCS(sysconf)
1204
1205         AC_CHECK_FUNCS(sched_setaffinity)
1206         AC_CHECK_FUNCS(sched_getcpu)
1207
1208         dnl ****************************************************************
1209         dnl *** Check for sched_setaffinity from glibc versions before   ***
1210         dnl *** 2.3.4. The older versions of the function only take 2    ***
1211         dnl *** parameters, not 3.                                       ***
1212         dnl ***                                                          ***
1213         dnl *** Because the interface change was not made in a minor     ***
1214         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1215         dnl *** won't always indicate the interface sched_affinity has.  ***
1216         dnl ****************************************************************
1217         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1218         AC_TRY_COMPILE([#include <sched.h>], [
1219             int mask = 1; 
1220             sched_setaffinity(0, &mask);
1221                         return 0;
1222         ], [
1223                 # Yes, we have it...
1224                 AC_MSG_RESULT(yes)
1225                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1226         ], [
1227                 # We have the new, three-parameter version
1228                 AC_MSG_RESULT(no)
1229         ])
1230
1231
1232         dnl ******************************************************************
1233         dnl *** Check for large file support                               ***
1234         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1235         dnl ******************************************************************
1236         
1237         # Check that off_t can represent 2**63 - 1 correctly, working around
1238         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1239         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1240         large_offt=no
1241         AC_DEFUN([LARGE_FILES], [
1242                 large_CPPFLAGS=$CPPFLAGS
1243                 CPPFLAGS="$CPPFLAGS $1"
1244                 AC_TRY_COMPILE([
1245                         #include <sys/types.h>
1246                         #include <limits.h>
1247                 ], [
1248                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1249                         #define COMPILE_TIME_ASSERT(pred) \
1250                                 switch(0){case 0:case pred:;}
1251                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1252                 ], [
1253                         AC_MSG_RESULT(ok)
1254                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1255                         large_CPPFLAGS="$large_CPPFLAGS $1"
1256                         large_offt=yes
1257                 ], [
1258                         AC_MSG_RESULT(no)
1259                 ])
1260                 CPPFLAGS=$large_CPPFLAGS
1261         ])
1262
1263         AC_MSG_CHECKING(if off_t is 64 bits wide)
1264         LARGE_FILES("")
1265         if test $large_offt = no; then
1266                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1267                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1268         fi
1269         if test $large_offt = no; then
1270                 AC_MSG_WARN([No 64 bit file size support available])
1271         fi
1272         
1273         dnl *****************************
1274         dnl *** Checks for libsocket  ***
1275         dnl *****************************
1276         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1277
1278         case "$host" in
1279                 *-*-*freebsd*)
1280                         dnl *****************************
1281                         dnl *** Checks for libinotify ***
1282                         dnl *****************************
1283                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1284         esac
1285
1286         dnl *******************************
1287         dnl *** Checks for MSG_NOSIGNAL ***
1288         dnl *******************************
1289         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1290         AC_TRY_COMPILE([#include <sys/socket.h>], [
1291                 int f = MSG_NOSIGNAL;
1292         ], [
1293                 # Yes, we have it...
1294                 AC_MSG_RESULT(yes)
1295                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1296         ], [
1297                 # We'll have to use signals
1298                 AC_MSG_RESULT(no)
1299         ])
1300
1301         dnl *****************************
1302         dnl *** Checks for IPPROTO_IP ***
1303         dnl *****************************
1304         AC_MSG_CHECKING(for IPPROTO_IP)
1305         AC_TRY_COMPILE([#include <netinet/in.h>], [
1306                 int level = IPPROTO_IP;
1307         ], [
1308                 # Yes, we have it...
1309                 AC_MSG_RESULT(yes)
1310                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1311         ], [
1312                 # We'll have to use getprotobyname
1313                 AC_MSG_RESULT(no)
1314         ])
1315
1316         dnl *******************************
1317         dnl *** Checks for IPPROTO_IPV6 ***
1318         dnl *******************************
1319         AC_MSG_CHECKING(for IPPROTO_IPV6)
1320         AC_TRY_COMPILE([#include <netinet/in.h>], [
1321                 int level = IPPROTO_IPV6;
1322         ], [
1323                 # Yes, we have it...
1324                 AC_MSG_RESULT(yes)
1325                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1326         ], [
1327                 # We'll have to use getprotobyname
1328                 AC_MSG_RESULT(no)
1329         ])
1330
1331         dnl ******************************
1332         dnl *** Checks for IPPROTO_TCP ***
1333         dnl ******************************
1334         AC_MSG_CHECKING(for IPPROTO_TCP)
1335         AC_TRY_COMPILE([#include <netinet/in.h>], [
1336                 int level = IPPROTO_TCP;
1337         ], [
1338                 # Yes, we have it...
1339                 AC_MSG_RESULT(yes)
1340                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1341         ], [
1342                 # We'll have to use getprotobyname
1343                 AC_MSG_RESULT(no)
1344         ])
1345
1346         dnl *****************************
1347         dnl *** Checks for SOL_IP     ***
1348         dnl *****************************
1349         AC_MSG_CHECKING(for SOL_IP)
1350         AC_TRY_COMPILE([#include <netdb.h>], [
1351                 int level = SOL_IP;
1352         ], [
1353                 # Yes, we have it...
1354                 AC_MSG_RESULT(yes)
1355                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1356         ], [
1357                 # We'll have to use getprotobyname
1358                 AC_MSG_RESULT(no)
1359         ])
1360
1361         dnl *****************************
1362         dnl *** Checks for SOL_IPV6     ***
1363         dnl *****************************
1364         AC_MSG_CHECKING(for SOL_IPV6)
1365         AC_TRY_COMPILE([#include <netdb.h>], [
1366                 int level = SOL_IPV6;
1367         ], [
1368                 # Yes, we have it...
1369                 AC_MSG_RESULT(yes)
1370                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1371         ], [
1372                 # We'll have to use getprotobyname
1373                 AC_MSG_RESULT(no)
1374         ])
1375
1376         dnl *****************************
1377         dnl *** Checks for SOL_TCP    ***
1378         dnl *****************************
1379         AC_MSG_CHECKING(for SOL_TCP)
1380         AC_TRY_COMPILE([#include <netdb.h>], [
1381                 int level = SOL_TCP;
1382         ], [
1383                 # Yes, we have it...
1384                 AC_MSG_RESULT(yes)
1385                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1386         ], [
1387                 # We'll have to use getprotobyname
1388                 AC_MSG_RESULT(no)
1389         ])
1390
1391         dnl *****************************
1392         dnl *** Checks for IP_PKTINFO ***
1393         dnl *****************************
1394         AC_MSG_CHECKING(for IP_PKTINFO)
1395         AC_TRY_COMPILE([#include <linux/in.h>], [
1396                 int level = IP_PKTINFO;
1397         ], [
1398                 # Yes, we have it...
1399                 AC_MSG_RESULT(yes)
1400                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1401         ], [
1402                 AC_MSG_RESULT(no)
1403         ])
1404
1405         dnl *****************************
1406         dnl *** Checks for IPV6_PKTINFO ***
1407         dnl *****************************
1408         AC_MSG_CHECKING(for IPV6_PKTINFO)
1409         AC_TRY_COMPILE([#include <netdb.h>], [
1410                 int level = IPV6_PKTINFO;
1411         ], [
1412                 # Yes, we have it...
1413                 AC_MSG_RESULT(yes)
1414                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1415         ], [
1416                 AC_MSG_RESULT(no)
1417         ])
1418
1419         dnl **********************************
1420         dnl *** Checks for IP_DONTFRAG     ***
1421         dnl **********************************
1422         AC_MSG_CHECKING(for IP_DONTFRAG)
1423         AC_TRY_COMPILE([#include <netinet/in.h>], [
1424                 int level = IP_DONTFRAG;
1425         ], [
1426                 # Yes, we have it...
1427                 AC_MSG_RESULT(yes)
1428                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1429         ], [
1430                 AC_MSG_RESULT(no)
1431         ])
1432
1433         dnl **********************************
1434         dnl *** Checks for IP_DONTFRAGMENT ***
1435         dnl **********************************
1436         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1437         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1438                 int level = IP_DONTFRAGMENT;
1439         ], [
1440                 # Yes, we have it...
1441                 AC_MSG_RESULT(yes)
1442                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1443         ], [
1444                 AC_MSG_RESULT(no)
1445         ])
1446
1447         dnl **********************************
1448         dnl *** Checks for IP_MTU_DISCOVER ***
1449         dnl **********************************
1450         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1451         AC_TRY_COMPILE([#include <linux/in.h>], [
1452                 int level = IP_MTU_DISCOVER;
1453         ], [
1454                 # Yes, we have it...
1455                 AC_MSG_RESULT(yes)
1456                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1457         ], [
1458                 AC_MSG_RESULT(no)
1459         ])
1460
1461         dnl **********************************
1462         dnl *** Checks for  IP_PMTUDISC_DO ***
1463         dnl **********************************
1464         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1465         AC_TRY_COMPILE([#include <linux/in.h>], [
1466                 int level = IP_PMTUDISC_DO;
1467         ], [
1468                 # Yes, we have it...
1469                 AC_MSG_RESULT(yes)
1470                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1471         ], [
1472                 AC_MSG_RESULT(no)
1473         ])
1474
1475         dnl *********************************
1476         dnl *** Check for struct ip_mreqn ***
1477         dnl *********************************
1478         AC_MSG_CHECKING(for struct ip_mreqn)
1479         AC_TRY_COMPILE([#include <netinet/in.h>], [
1480                 struct ip_mreqn mreq;
1481                 mreq.imr_address.s_addr = 0;
1482         ], [
1483                 # Yes, we have it...
1484                 AC_MSG_RESULT(yes)
1485                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1486         ], [
1487                 # We'll just have to try and use struct ip_mreq
1488                 AC_MSG_RESULT(no)
1489                 AC_MSG_CHECKING(for struct ip_mreq)
1490                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1491                         struct ip_mreq mreq;
1492                         mreq.imr_interface.s_addr = 0;
1493                 ], [
1494                         # Yes, we have it...
1495                         AC_MSG_RESULT(yes)
1496                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1497                 ], [
1498                         # No multicast support
1499                         AC_MSG_RESULT(no)
1500                 ])
1501         ])
1502         
1503         dnl **********************************
1504         dnl *** Check for gethostbyname2_r ***
1505         dnl **********************************
1506         AC_MSG_CHECKING(for gethostbyname2_r)
1507                 AC_TRY_LINK([#include <netdb.h>], [
1508                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1509         ], [
1510                 # Yes, we have it...
1511                 AC_MSG_RESULT(yes)
1512                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1513         ], [
1514                 AC_MSG_RESULT(no)
1515         ])
1516
1517         dnl *****************************
1518         dnl *** Checks for libnsl     ***
1519         dnl *****************************
1520         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1521
1522         AC_CHECK_FUNCS(inet_pton inet_aton)
1523
1524         dnl *****************************
1525         dnl *** Checks for libxnet    ***
1526         dnl *****************************
1527         case "${host}" in
1528                 *solaris* )
1529                         AC_MSG_CHECKING(for Solaris XPG4 support)
1530                         if test -f /usr/lib/libxnet.so; then
1531                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1532                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1533                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1534                                 LIBS="$LIBS -lxnet"
1535                                 AC_MSG_RESULT(yes)
1536                         else
1537                                 AC_MSG_RESULT(no)
1538                         fi
1539
1540                         if test "$GCC" = "yes"; then
1541                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1542                         fi
1543                 ;;
1544         esac
1545
1546         dnl *****************************
1547         dnl *** Checks for libpthread ***
1548         dnl *****************************
1549 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1550 # and libpthread does not exist
1551 #
1552         case "${host}" in
1553                 *-*-*freebsd*)
1554                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1555                 ;;
1556                 *-*-*openbsd*)
1557                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1558                 ;;
1559                 *)
1560                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1561                 ;;
1562         esac
1563         AC_CHECK_HEADERS(pthread.h)
1564         AC_CHECK_HEADERS(pthread_np.h)
1565         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1566         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1567         AC_CHECK_FUNCS(pthread_kill)
1568         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1569         AC_TRY_COMPILE([ #include <pthread.h>], [
1570                 pthread_mutexattr_t attr;
1571                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1572         ], [
1573                 AC_MSG_RESULT(ok)
1574         ], [
1575                 AC_MSG_RESULT(no)
1576                 AC_ERROR(Posix system lacks support for recursive mutexes)
1577         ])
1578         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1579         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1580         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1581
1582         dnl ***********************************
1583         dnl *** Checks for signals
1584         dnl ***********************************
1585         AC_CHECK_HEADERS(signal.h)
1586         AC_CHECK_FUNCS(sigaction)
1587
1588         dnl ***********************************
1589         dnl *** Checks for working __thread ***
1590         dnl ***********************************
1591         AC_MSG_CHECKING(for working __thread)
1592         if test "x$with_tls" != "x__thread"; then
1593                 AC_MSG_RESULT(disabled)
1594         elif test "x$cross_compiling" = "xyes"; then
1595                 AC_MSG_RESULT(cross compiling, assuming yes)
1596         else
1597                 AC_TRY_RUN([
1598                         #if defined(__APPLE__) && defined(__clang__)
1599                         #error "__thread does not currently work with clang on Mac OS X"
1600                         #endif
1601                         
1602                         #include <pthread.h>
1603                         __thread int i;
1604                         static int res1, res2;
1605
1606                         void thread_main (void *arg)
1607                         {
1608                                 i = arg;
1609                                 sleep (1);
1610                                 if (arg == 1)
1611                                         res1 = (i == arg);
1612                                 else
1613                                         res2 = (i == arg);
1614                         }
1615
1616                         int main () {
1617                                 pthread_t t1, t2;
1618
1619                                 i = 5;
1620
1621                                 pthread_create (&t1, NULL, thread_main, 1);
1622                                 pthread_create (&t2, NULL, thread_main, 2);
1623
1624                                 pthread_join (t1, NULL);
1625                                 pthread_join (t2, NULL);
1626
1627                                 return !(res1 + res2 == 2);
1628                         }
1629                 ], [
1630                                 AC_MSG_RESULT(yes)
1631                 ], [
1632                                 AC_MSG_RESULT(no)
1633                                 with_tls=pthread
1634                 ])
1635         fi
1636
1637         dnl **************************************
1638         dnl *** Checks for working sigaltstack ***
1639         dnl **************************************
1640         AC_MSG_CHECKING(for working sigaltstack)
1641         if test "x$with_sigaltstack" != "xyes"; then
1642                 AC_MSG_RESULT(disabled)
1643         elif test "x$cross_compiling" = "xyes"; then
1644                 AC_MSG_RESULT(cross compiling, assuming yes)
1645         else
1646                 AC_TRY_RUN([
1647                         #include <stdio.h>
1648                         #include <stdlib.h>
1649                         #include <unistd.h>
1650                         #include <signal.h>
1651                         #include <pthread.h>
1652                         #include <sys/wait.h>
1653                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1654                         #define SA_STACK SA_ONSTACK
1655                         #endif
1656                         static void
1657                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1658                         {
1659                                 exit (0);
1660                         }
1661
1662                         volatile char*__ptr = NULL;
1663                         static void *
1664                         loop (void *ignored)
1665                         {
1666                                 *__ptr = 0;
1667                                 return NULL;
1668                         }
1669
1670                         static void
1671                         child ()
1672                         {
1673                                 struct sigaction sa;
1674                         #ifdef __APPLE__
1675                                 stack_t sas;
1676                         #else
1677                                 struct sigaltstack sas;
1678                         #endif
1679                                 pthread_t id;
1680                                 pthread_attr_t attr;
1681
1682                                 sa.sa_sigaction = sigsegv_signal_handler;
1683                                 sigemptyset (&sa.sa_mask);
1684                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1685                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1686                                         perror ("sigaction");
1687                                         return;
1688                                 }
1689
1690                                 /* x86 darwin deliver segfaults using SIGBUS */
1691                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
1692                                         perror ("sigaction");
1693                                         return;
1694                                 }
1695                                 sas.ss_sp = malloc (SIGSTKSZ);
1696                                 sas.ss_size = SIGSTKSZ;
1697                                 sas.ss_flags = 0;
1698                                 if (sigaltstack (&sas, NULL) == -1) {
1699                                         perror ("sigaltstack");
1700                                         return;
1701                                 }
1702
1703                                 pthread_attr_init (&attr);
1704                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1705                                         printf ("pthread_create\n");
1706                                         return;
1707                                 }
1708
1709                                 sleep (100);
1710                         }
1711
1712                         int
1713                         main ()
1714                         {
1715                                 pid_t son;
1716                                 int status;
1717                                 int i;
1718
1719                                 son = fork ();
1720                                 if (son == -1) {
1721                                         return 1;
1722                                 }
1723
1724                                 if (son == 0) {
1725                                         child ();
1726                                         return 0;
1727                                 }
1728
1729                                 for (i = 0; i < 300; ++i) {
1730                                         waitpid (son, &status, WNOHANG);
1731                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
1732                                                 return 0;
1733                                         usleep (10000);
1734                                 }
1735
1736                                 kill (son, SIGKILL);
1737                                 return 1;
1738                         }
1739
1740                 ], [
1741                                 AC_MSG_RESULT(yes)
1742                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
1743                 ], [
1744                                 with_sigaltstack=no
1745                                 AC_MSG_RESULT(no)
1746                 ])
1747         fi
1748
1749         dnl ********************************
1750         dnl *** Checks for semaphore lib ***
1751         dnl ********************************
1752         # 'Real Time' functions on Solaris
1753         # posix4 on Solaris 2.6
1754         # pthread (first!) on Linux
1755         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
1756
1757         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
1758         AC_CHECK_FUNCS(shm_open)
1759
1760         dnl ********************************
1761         dnl *** Checks for timezone stuff **
1762         dnl ********************************
1763         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
1764                 AC_TRY_COMPILE([
1765                         #include <time.h>
1766                         ], [
1767                         struct tm tm;
1768                         tm.tm_gmtoff = 1;
1769                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
1770         if test $ac_cv_struct_tm_gmtoff = yes; then
1771                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
1772         else
1773                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
1774                         AC_TRY_COMPILE([
1775                                 #include <time.h>
1776                         ], [
1777                                 timezone = 1;
1778                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
1779                 if test $ac_cv_var_timezone = yes; then
1780                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
1781                 else
1782                         AC_ERROR(unable to find a way to determine timezone)
1783                 fi
1784         fi
1785
1786         dnl *********************************
1787         dnl *** Checks for math functions ***
1788         dnl *********************************
1789         AC_SEARCH_LIBS(sqrtf, m)
1790         if test "x$has_broken_apple_cpp" != "xyes"; then
1791                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
1792                         AC_TRY_LINK([#include <math.h>], 
1793                         [ finite(0.0); ], 
1794                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
1795                         AC_MSG_RESULT(no)))
1796         fi
1797         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
1798                 AC_TRY_LINK([#include <math.h>], 
1799                 [ isfinite(0.0); ], 
1800                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
1801                 AC_MSG_RESULT(no)))
1802
1803         dnl ****************************************************************
1804         dnl *** Checks for working poll() (macosx defines it but doesn't ***
1805         dnl *** have it in the library (duh))                            ***
1806         dnl ****************************************************************
1807         AC_CHECK_FUNCS(poll)
1808
1809         dnl *************************
1810         dnl *** Check for signbit ***
1811         dnl *************************
1812         AC_MSG_CHECKING(for signbit)
1813         AC_TRY_LINK([#include <math.h>], [
1814                 int s = signbit(1.0);
1815         ], [
1816                 AC_MSG_RESULT(yes)
1817                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
1818         ], [
1819                 AC_MSG_RESULT(no)
1820         ]) 
1821
1822         dnl **********************************
1823         dnl *** epoll                      ***
1824         dnl **********************************
1825         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
1826                 AC_CHECK_HEADERS(sys/epoll.h)
1827                 haveepoll=no
1828                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
1829                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
1830                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
1831                 fi
1832         fi
1833
1834         havekqueue=no
1835
1836         AC_CHECK_HEADERS(sys/event.h)
1837         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
1838
1839         dnl **************************************
1840         dnl * Darwin has a race that prevents us from using reliably:
1841         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
1842         dnl * Since kqueue is mostly used for scaling large web servers, 
1843         dnl * and very few folks run Mono on large web servers on OSX, falling
1844         dnl * back 
1845         dnl **************************************
1846         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
1847                 if test "x$platform_darwin" = "xno"; then
1848                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
1849                 fi
1850         fi
1851
1852         dnl ******************************
1853         dnl *** Checks for SIOCGIFCONF ***
1854         dnl ******************************
1855         AC_CHECK_HEADERS(sys/ioctl.h)
1856         AC_CHECK_HEADERS(net/if.h, [], [],
1857            [
1858            #ifdef HAVE_SYS_TYPES_H
1859            # include <sys/types.h>
1860            #endif
1861            #ifdef HAVE_SYS_SOCKET_H
1862            # include <sys/socket.h>
1863            #endif
1864            ])
1865         AC_MSG_CHECKING(for ifreq)
1866         AC_TRY_COMPILE([
1867                 #include <stdio.h>
1868                 #include <sys/ioctl.h>
1869                 #include <net/if.h>
1870                 ], [
1871                 struct ifconf ifc;
1872                 struct ifreq *ifr;
1873                 void *x;
1874                 ifc.ifc_len = 0;
1875                 ifc.ifc_buf = NULL;
1876                 x = (void *) &ifr->ifr_addr;
1877                 ],[
1878                         AC_MSG_RESULT(yes)
1879                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
1880                 ], [
1881                         AC_MSG_RESULT(no)
1882                 ])
1883         dnl **********************************
1884         dnl ***     Checks for sin_len     ***
1885         dnl **********************************
1886         AC_MSG_CHECKING(for sockaddr_in.sin_len)
1887         AC_TRY_COMPILE([
1888                 #include <netinet/in.h>
1889                 ], [
1890                 struct sockaddr_in saddr;
1891                 saddr.sin_len = sizeof (saddr);
1892                 ],[
1893                         AC_MSG_RESULT(yes)
1894                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
1895                 ], [
1896                         AC_MSG_RESULT(no)
1897                 ])      
1898         dnl **********************************
1899         dnl ***    Checks for sin6_len     ***
1900         dnl **********************************
1901         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
1902         AC_TRY_COMPILE([
1903                 #include <netinet/in.h>
1904                 ], [
1905                 struct sockaddr_in6 saddr6;
1906                 saddr6.sin6_len = sizeof (saddr6);
1907                 ],[
1908                         AC_MSG_RESULT(yes)
1909                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
1910                 ], [
1911                         AC_MSG_RESULT(no)
1912                 ])
1913         dnl **********************************
1914         dnl *** Check for getifaddrs       ***
1915         dnl **********************************
1916         AC_MSG_CHECKING(for getifaddrs)
1917                 AC_TRY_LINK([
1918                 #include <stdio.h>
1919                 #include <sys/types.h>
1920                 #include <sys/socket.h>
1921                 #include <ifaddrs.h>
1922         ], [
1923                 getifaddrs(NULL);
1924         ], [
1925                 # Yes, we have it...
1926                 AC_MSG_RESULT(yes)
1927                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
1928         ], [
1929                 AC_MSG_RESULT(no)
1930         ])
1931         dnl **********************************
1932         dnl *** Check for if_nametoindex   ***
1933         dnl **********************************
1934         AC_MSG_CHECKING(for if_nametoindex)
1935                 AC_TRY_LINK([
1936                 #include <stdio.h>
1937                 #include <sys/types.h>
1938                 #include <sys/socket.h>
1939                 #include <net/if.h>
1940         ], [
1941                 if_nametoindex(NULL);
1942         ], [
1943                 # Yes, we have it...
1944                 AC_MSG_RESULT(yes)
1945                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
1946         ], [
1947                 AC_MSG_RESULT(no)
1948         ])
1949                         
1950         dnl **********************************
1951         dnl *** Checks for MonoPosixHelper ***
1952         dnl **********************************
1953         AC_CHECK_HEADERS(checklist.h)
1954         AC_CHECK_HEADERS(pathconf.h)
1955         AC_CHECK_HEADERS(fstab.h)
1956         AC_CHECK_HEADERS(attr/xattr.h)
1957         AC_CHECK_HEADERS(sys/extattr.h)
1958         AC_CHECK_HEADERS(sys/sendfile.h)
1959         AC_CHECK_HEADERS(sys/statvfs.h)
1960         AC_CHECK_HEADERS(sys/statfs.h)
1961         AC_CHECK_HEADERS(sys/vfstab.h)
1962         AC_CHECK_HEADERS(sys/xattr.h)
1963         AC_CHECK_HEADERS(sys/mman.h)
1964         AC_CHECK_HEADERS(sys/param.h)
1965         AC_CHECK_HEADERS(sys/mount.h, [], [],
1966                 [
1967                 #ifdef HAVE_SYS_PARAM_H
1968                 # include <sys/param.h>
1969                 #endif
1970                 ])
1971         AC_CHECK_HEADERS(sys/mount.h)
1972         AC_CHECK_FUNCS(confstr)
1973         AC_CHECK_FUNCS(seekdir telldir)
1974         AC_CHECK_FUNCS(getdomainname)
1975         AC_CHECK_FUNCS(setdomainname)
1976         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
1977         AC_CHECK_FUNCS(setgroups)
1978         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
1979         AC_CHECK_FUNCS(getfsstat)
1980         AC_CHECK_FUNCS(lutimes futimes)
1981         AC_CHECK_FUNCS(mremap)
1982         AC_CHECK_FUNCS(remap_file_pages)
1983         AC_CHECK_FUNCS(posix_fadvise)
1984         AC_CHECK_FUNCS(posix_fallocate)
1985         AC_CHECK_FUNCS(posix_madvise)
1986         AC_CHECK_FUNCS(vsnprintf)
1987         AC_CHECK_FUNCS(sendfile)
1988         AC_CHECK_FUNCS(gethostid sethostid)
1989         AC_CHECK_FUNCS(sethostname)
1990         AC_CHECK_FUNCS(statfs)
1991         AC_CHECK_FUNCS(fstatfs)
1992         AC_CHECK_FUNCS(statvfs)
1993         AC_CHECK_FUNCS(fstatvfs)
1994         AC_CHECK_FUNCS(stime)
1995         AC_CHECK_FUNCS(strerror_r)
1996         AC_CHECK_FUNCS(ttyname_r)
1997         AC_CHECK_FUNCS(psignal)
1998         AC_CHECK_FUNCS(getlogin_r)
1999         AC_CHECK_FUNCS(lockf)
2000         AC_CHECK_FUNCS(swab)
2001         AC_CHECK_FUNCS(setusershell endusershell)
2002         AC_CHECK_FUNCS(futimens utimensat)
2003         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2004         AC_CHECK_FUNCS(readv writev preadv pwritev)
2005         AC_CHECK_FUNCS(setpgid)
2006         AC_CHECK_SIZEOF(size_t)
2007         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2008                 [#include <sys/types.h>
2009                  #include <sys/stat.h>
2010                  #include <unistd.h>])
2011         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2012                 [#include <sys/types.h>
2013                  #include <sys/stat.h>
2014                  #include <unistd.h>])
2015         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2016                 [#include <sys/time.h>])
2017         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2018                 [#include <unistd.h>
2019                  #include <fcntl.h>])
2020         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2021                 [#include <sys/uio.h>])
2022         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2023                 [#include <sys/poll.h>])
2024         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2025                 [#include <sys/types.h>
2026                  #include <sys/stat.h>
2027                  #include <unistd.h>])
2028         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2029                 [#include <time.h>])
2030         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2031                 [#include <sys/time.h>
2032                  #include <sys/types.h>
2033                  #include <utime.h>])
2034         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2035                 [#include <sys/time.h>])
2036         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2037                 [#include <sys/types.h>
2038                  #include <utime.h>])
2039         AC_CHECK_MEMBERS(
2040                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2041                 [#include <sys/types.h>
2042                  #include <dirent.h>])
2043         AC_CHECK_MEMBERS(
2044                 [struct passwd.pw_gecos],,, 
2045                 [#include <sys/types.h>
2046                  #include <pwd.h>])
2047         AC_CHECK_MEMBERS(
2048                 [struct statfs.f_flags],,, 
2049                 [#include <sys/types.h>
2050                  #include <sys/vfs.h>])
2051         AC_CHECK_MEMBERS(
2052                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2053                 [#include <sys/types.h>
2054                  #include <sys/stat.h>
2055                  #include <unistd.h>])
2056
2057         dnl Favour xattr through glibc, but use libattr if we have to
2058         AC_CHECK_FUNC(lsetxattr, ,
2059                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2060         )
2061         AC_SUBST(XATTR_LIB)
2062
2063         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2064         AC_CHECK_MEMBERS(
2065                 [struct kinfo_proc.kp_proc],,, 
2066                 [#include <sys/types.h>
2067                  #include <sys/param.h>
2068                  #include <sys/sysctl.h>
2069                  #include <sys/proc.h>
2070                  ])
2071
2072         dnl *********************************
2073         dnl *** Checks for Windows compilation ***
2074         dnl *********************************
2075         AC_CHECK_HEADERS(sys/time.h)
2076         AC_CHECK_HEADERS(sys/param.h)
2077         AC_CHECK_HEADERS(dirent.h)
2078
2079         dnl ******************************************
2080         dnl *** Checks for OSX and iOS compilation ***
2081         dnl ******************************************
2082         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2083
2084         dnl *********************************
2085         dnl *** Check for Console 2.0 I/O ***
2086         dnl *********************************
2087         AC_CHECK_HEADERS([curses.h])
2088         AC_CHECK_HEADERS([term.h], [], [],
2089         [#if HAVE_CURSES_H
2090          #include <curses.h>
2091          #endif
2092         ])
2093         AC_CHECK_HEADERS([termios.h])
2094
2095         dnl * This is provided in io-layer, but on windows it's only available
2096         dnl * on xp+
2097         AC_DEFINE(HAVE_GETPROCESSID, 1, [Define if GetProcessId is available])
2098 else
2099         dnl *********************************
2100         dnl *** Checks for Windows compilation ***
2101         dnl *********************************
2102         AC_CHECK_HEADERS(winternl.h)
2103
2104         jdk_headers_found=no
2105         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2106         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2107         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2108         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2109         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2110         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2111         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2112
2113         dnl *********************************
2114         dnl *** Check for struct ip_mreqn ***
2115         dnl *********************************
2116         AC_MSG_CHECKING(for struct ip_mreqn)
2117         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2118                 struct ip_mreqn mreq;
2119                 mreq.imr_address.s_addr = 0;
2120         ], [
2121                 # Yes, we have it...
2122                 AC_MSG_RESULT(yes)
2123                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2124         ], [
2125                 # We'll just have to try and use struct ip_mreq
2126                 AC_MSG_RESULT(no)
2127                 AC_MSG_CHECKING(for struct ip_mreq)
2128                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2129                         struct ip_mreq mreq;
2130                         mreq.imr_interface.s_addr = 0;
2131                 ], [
2132                         # Yes, we have it...
2133                         AC_MSG_RESULT(yes)
2134                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2135                 ], [
2136                         # No multicast support
2137                         AC_MSG_RESULT(no)
2138                 ])
2139         ])
2140         AC_CHECK_FUNCS(GetProcessId)
2141         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2142         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2143         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2144         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2145         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2146         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2147         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2148 fi
2149
2150 dnl socklen_t check
2151 AC_MSG_CHECKING(for socklen_t)
2152 AC_TRY_COMPILE([
2153 #include <sys/types.h>
2154 #include <sys/socket.h>
2155 ],[
2156   socklen_t foo;
2157 ],[
2158 ac_cv_c_socklen_t=yes
2159         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2160         AC_MSG_RESULT(yes)
2161 ],[
2162         AC_MSG_RESULT(no)
2163 ])
2164
2165 AC_MSG_CHECKING(for array element initializer support)
2166 AC_TRY_COMPILE([#include <sys/socket.h>], [
2167         const int array[] = {[1] = 2,};
2168 ], [
2169         # Yes, we have it...
2170         AC_MSG_RESULT(yes)
2171         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2172 ], [
2173         # We'll have to use signals
2174         AC_MSG_RESULT(no)
2175 ])
2176
2177 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2178         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2179         AC_TRY_LINK([#include <math.h>], 
2180         [ static void *p = &trunc; ],
2181         [
2182                 AC_DEFINE(HAVE_TRUNC) 
2183                 AC_MSG_RESULT(yes)
2184                 ac_cv_trunc=yes
2185         ],
2186         AC_MSG_RESULT(no)))
2187
2188 if test "x$ac_cv_truncl" != "xyes"; then
2189    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2190 fi
2191
2192 AC_CHECK_FUNCS(round)
2193 AC_CHECK_FUNCS(rint)
2194 AC_CHECK_FUNCS(execvp)
2195
2196 dnl ****************************
2197 dnl *** Look for /dev/random ***
2198 dnl ****************************
2199
2200 AC_MSG_CHECKING([if usage of random device is requested])
2201 AC_ARG_ENABLE(dev-random,
2202 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2203 try_dev_random=$enableval, try_dev_random=yes)
2204
2205 AC_MSG_RESULT($try_dev_random)
2206
2207 case "{$build}" in
2208     *-openbsd*)
2209     NAME_DEV_RANDOM="/dev/srandom"
2210     ;;
2211
2212 dnl Win32 does not have /dev/random, they have their own method...
2213
2214     *-mingw*|*-*-cygwin*)
2215     ac_cv_have_dev_random=no
2216     ;;
2217
2218 dnl Everywhere else, it's /dev/random
2219
2220     *)
2221     NAME_DEV_RANDOM="/dev/random"
2222     ;;
2223 esac
2224
2225 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2226
2227 dnl Now check if the device actually exists
2228
2229 if test "x$try_dev_random" = "xyes"; then
2230     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2231     [if test -r "$NAME_DEV_RANDOM" ; then
2232         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2233     if test "x$ac_cv_have_dev_random" = "xyes"; then
2234         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2235     fi
2236 else
2237     AC_MSG_CHECKING(for random device)
2238     ac_cv_have_dev_random=no
2239     AC_MSG_RESULT(has been disabled)
2240 fi
2241
2242 if test "x$host_win32" = "xyes"; then
2243     AC_DEFINE(HAVE_CRYPT_RNG)
2244 fi
2245
2246 if test "x$ac_cv_have_dev_random" = "xno" \
2247     && test "x$host_win32" = "xno"; then
2248     AC_MSG_WARN([[
2249 ***
2250 *** A system-provided entropy source was not found on this system.
2251 *** Because of this, the System.Security.Cryptography random number generator
2252 *** will throw a NotImplemented exception.
2253 ***
2254 *** If you are seeing this message, and you know your system DOES have an
2255 *** entropy collection in place, please contact <crichton@gimp.org> and
2256 *** provide information about the system and how to access the random device.
2257 ***
2258 *** Otherwise you can install either egd or prngd and set the environment
2259 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2260 ***]])
2261 fi
2262  
2263 AC_MSG_CHECKING([if inter-process shared handles are requested])
2264 AC_ARG_ENABLE(shared-handles, [  --disable-shared-handles disable inter-process shared handles], try_shared_handles=$enableval, try_shared_handles=yes)
2265 AC_MSG_RESULT($try_shared_handles)
2266 if test "x$try_shared_handles" != "xyes"; then
2267         AC_DEFINE(DISABLE_SHARED_HANDLES, 1, [Disable inter-process shared handles])
2268         AC_SUBST(DISABLE_SHARED_HANDLES)
2269 fi
2270
2271 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2272
2273 AC_ARG_ENABLE(nunit-tests, [  --enable-nunit-tests      Run the nunit tests of the class library on 'make check'])
2274 AM_CONDITIONAL(ENABLE_NUNIT_TESTS, [test x$enable_nunit_tests = xyes])
2275
2276 AC_MSG_CHECKING([if big-arrays are to be enabled])
2277 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2278 if test "x$enable_big_arrays" = "xyes" ; then
2279     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2280         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2281     else
2282         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2283     fi
2284 fi
2285 AC_MSG_RESULT($enable_big_arrays)
2286
2287 dnl **************
2288 dnl *** DTRACE ***
2289 dnl **************
2290
2291 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2292
2293 if test "x$enable_dtrace" = "xyes"; then
2294    if test "x$has_dtrace" = "xno"; then
2295           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2296    fi
2297    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2298    if test "x$DTRACE" = "xno"; then
2299           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2300           enable_dtrace=no
2301    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2302           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2303           enable_dtrace=no
2304    fi
2305 fi
2306
2307 dtrace_g=no
2308 if test "x$enable_dtrace" = "xyes"; then
2309         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2310         DTRACEFLAGS=
2311         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2312                 case "$host" in
2313                         powerpc-*-darwin*)
2314                         DTRACEFLAGS="-arch ppc64"
2315                         ;;
2316                         i*86-*-darwin*)
2317                         DTRACEFLAGS="-arch x86_64"
2318                         ;;
2319                         *)
2320                         DTRACEFLAGS=-64
2321                         ;;
2322                 esac
2323         else
2324                 case "$host" in
2325                         powerpc-*-darwin*)
2326                         DTRACEFLAGS="-arch ppc"
2327                         ;;
2328                         i*86-*-darwin*)
2329                         DTRACEFLAGS="-arch i386"
2330                         ;;
2331                         *)
2332                         DTRACEFLAGS=-32
2333                         ;;
2334                 esac
2335         fi
2336         AC_SUBST(DTRACEFLAGS)
2337         case "$host" in
2338                 *-*-solaris*)
2339                 dtrace_g=yes
2340                 ;;
2341         esac
2342         AC_CHECK_HEADERS([sys/sdt.h])
2343 fi
2344 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2345 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2346
2347 dnl **************
2348 dnl ***  NaCl  ***
2349 dnl **************
2350
2351 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2352 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2353
2354 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2355
2356 dnl
2357 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2358 dnl
2359 nacl_self_host=""
2360 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2361    nacl_self_host="nacl_self_host"
2362 fi
2363 AC_SUBST(nacl_self_host)
2364
2365 if test "x$enable_nacl_codegen" = "xyes"; then
2366    MONO_NACL_ALIGN_MASK_OFF=1
2367    AC_DEFINE(TARGET_NACL, 1, [...])
2368    AC_DEFINE(__native_client_codegen__, 1, [...])
2369 else
2370    MONO_NACL_ALIGN_MASK_OFF=0
2371    AC_DEFINE(__default_codegen__, 1, [...])
2372 fi
2373 if test "x$enable_nacl_gc" = "xyes"; then
2374    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2375       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2376    else
2377       # Not yet implemented
2378       INSTRUMENT_CFLAG=""
2379    fi
2380    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2381 fi
2382 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2383
2384 dnl **************
2385 dnl ***  LLVM  ***
2386 dnl **************
2387
2388 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=no)
2389 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2390 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2391
2392 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2393
2394 if test "x$enable_llvm" = "xyes"; then
2395    if test "x$with_llvm" != "x"; then
2396           LLVM_CONFIG=$with_llvm/bin/llvm-config
2397           if test ! -x $LLVM_CONFIG; then
2398                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2399       fi
2400    else
2401       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2402       if test "x$LLVM_CONFIG" = "xno"; then
2403              AC_MSG_ERROR([llvm-config not found.])
2404       fi
2405    fi
2406
2407    llvm_codegen="x86codegen"
2408    case "$target" in
2409    arm*)
2410                 llvm_codegen="armcodegen"
2411                 ;;
2412    esac
2413
2414    # The output of --cflags seems to include optimizations flags too
2415    LLVM_CFLAGS=`$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'`
2416    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2417    # from LLVM classes.
2418    LLVM_CXXFLAGS="`$LLVM_CONFIG --cxxflags` -fno-rtti"
2419    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2420    # This might include empty lines
2421    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2422    if test "x$host" != "x$target"; then
2423       # No need for jit libs
2424       LLVM_LIBS=`$LLVM_CONFIG --libs core bitwriter`
2425    else
2426       LLVM_LIBS=`$LLVM_CONFIG --libs core bitwriter jit mcjit $llvm_codegen`
2427    fi
2428    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS -lstdc++"
2429
2430    expected_llvm_version="3.4svn-mono-mono/e656cac"
2431
2432    # Should be something like '2.6' or '2.7svn'
2433    llvm_version=`$LLVM_CONFIG --version`
2434    major_version=`echo $llvm_version | cut -c 1`
2435    minor_version=`echo $llvm_version | cut -c 3`
2436    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2437    AC_MSG_CHECKING(LLVM version)
2438    AC_MSG_RESULT($llvm_version)
2439    if echo $llvm_version | grep -q 'mono'; then
2440           if test "x$enable_llvm_version_check" == "xyes"; then
2441                  if test "$llvm_version" != "$expected_llvm_version"; then
2442                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2443                  fi
2444           fi
2445           if test "x$llvm_api_version" = "x"; then
2446                 LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2447                 LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2448           else
2449                 LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2450                 LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2451           fi
2452    else
2453           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.])
2454    fi
2455
2456    AC_DEFINE_UNQUOTED(LLVM_MAJOR_VERSION, $major_version, [Major version of LLVM libraries])
2457    AC_DEFINE_UNQUOTED(LLVM_MINOR_VERSION, $minor_version, [Minor version of LLVM libraries])
2458    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2459
2460    # Have to pass these on the command line since mini-llvm-cpp.h already includes
2461    # llvm's config.h
2462    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_MAJOR_VERSION=$major_version -DLLVM_MINOR_VERSION=$minor_version"
2463
2464    AC_SUBST(LLVM_CFLAGS)
2465    AC_SUBST(LLVM_CXXFLAGS)
2466    AC_SUBST(LLVM_LIBS)
2467    AC_SUBST(LLVM_LDFLAGS)
2468    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2469 fi
2470
2471 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2472 if test "x$enable_loadedllvm" = "xyes"; then
2473    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2474 fi
2475 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2476
2477 TARGET="unknown"
2478 ACCESS_UNALIGNED="yes"
2479
2480 JIT_SUPPORTED=no
2481 INTERP_SUPPORTED=no
2482 LIBC="libc.so.6"
2483 INTL="libc.so.6"
2484 SQLITE="libsqlite.so.0"
2485 SQLITE3="libsqlite3.so.0"
2486 X11="libX11.so"
2487 GDKX11="libgdk-x11-2.0.so.0"
2488 GTKX11="libgtk-x11-2.0.so.0"
2489 XINERAMA="libXinerama.so"
2490
2491 sizeof_register="SIZEOF_VOID_P"
2492
2493 jit_wanted=true
2494 interp_wanted=false
2495 sgen_supported=false
2496 boehm_supported=true
2497 case "$host" in
2498         mips*)
2499                 TARGET=MIPS;
2500                 arch_target=mips;
2501                 sgen_supported=true
2502                 ACCESS_UNALIGNED="no"
2503                 JIT_SUPPORTED=yes
2504
2505                 AC_MSG_CHECKING(for mips n32)
2506                 AC_TRY_COMPILE([],[
2507                 #if _MIPS_SIM != _ABIN32
2508                 #error Not mips n32
2509                 #endif
2510                 return 0;
2511                 ],[
2512                 AC_MSG_RESULT(yes)
2513                 sizeof_register=8
2514                 ],[
2515                 AC_MSG_RESULT(no)
2516                 ])
2517                 ;;
2518         i*86-*-*)
2519                 TARGET=X86;
2520                 arch_target=x86;
2521                 JIT_SUPPORTED=yes
2522                 case $host_os in
2523                   solaris*)
2524                         LIBC="libc.so"
2525                         INTL="libintl.so"
2526                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2527                                 TARGET=AMD64
2528                                 arch_target=amd64
2529                         fi
2530
2531                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
2532                         # int astruct __attribute__ ((visibility ("hidden")));
2533                         # void foo ()
2534                         # {
2535                         #       void *p = &astruct;
2536                         # }
2537                         # gcc -fPIC --shared -o libfoo.so foo.c
2538                         # yields:
2539                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
2540                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
2541                         have_visibility_hidden=no
2542                         sgen_supported=true
2543                         ;;
2544                   mingw*|cygwin*)
2545                         sgen_supported=true
2546                         have_visibility_hidden=no                 
2547                         ;;
2548                   haiku*)
2549                         LIBC=libroot.so
2550                         ;;
2551                   linux*)
2552                         sgen_supported=true
2553                         AOT_SUPPORTED="yes"
2554                         ;;
2555                   darwin*)
2556                         sgen_supported=true
2557                         AOT_SUPPORTED="yes"
2558                         ;;
2559                   openbsd*|freebsd*)
2560                         sgen_supported=true
2561                         ;;
2562                 esac
2563                 ;;
2564         x86_64-*-* | amd64-*-*)
2565                 TARGET=AMD64;
2566                 arch_target=amd64;
2567                 JIT_SUPPORTED=yes
2568                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
2569                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2570                         sizeof_register=8
2571                 fi
2572                 case $host_os in
2573                   linux*)
2574                         sgen_supported=true
2575                         AOT_SUPPORTED="yes"
2576                         ;;
2577                   darwin*)
2578                         sgen_supported=true
2579                         AOT_SUPPORTED="yes"
2580                         ;;
2581                   openbsd*|freebsd*)
2582                         sgen_supported=true
2583                         ;;
2584                   mingw*)
2585                         sgen_supported=true
2586                         ;;
2587                 esac
2588                 case "$host" in
2589                         x86_64-*-nacl*)
2590                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2591                                 sizeof_register=8
2592                                 ;;
2593                 esac
2594                 ;;
2595         ia64-*-*)
2596                 TARGET=IA64
2597                 arch_target=ia64
2598                 ACCESS_UNALIGNED="no"
2599                 JIT_SUPPORTED=yes
2600                 LIBC="libc.so.6.1"
2601                 INTL="libc.so.6.1"
2602                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
2603                 libmono_ldflags="-lunwind"
2604                 ;;
2605         sparc*-*-*)
2606                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2607                    TARGET=SPARC64
2608                 else
2609                         TARGET=SPARC
2610                 fi
2611                 arch_target=sparc;
2612                 JIT_SUPPORTED=yes
2613                 ACCESS_UNALIGNED="no"
2614                 case $host_os in
2615                   linux*) ;;
2616                   *)
2617                         LIBC="libc.so"
2618                         INTL="libintl.so"
2619                 esac
2620                 if test x"$GCC" = xyes; then
2621                         # We don't support v8 cpus
2622                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
2623                 fi
2624                 if test x"$AR" = xfalse; then
2625                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
2626                 fi
2627                 sgen_supported=true
2628                 ;;
2629         *-mingw*|*-*-cygwin*)
2630                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
2631                 have_visibility_hidden=no
2632                 INTL="intl"
2633                 ;;
2634         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
2635         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
2636                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2637                         TARGET=POWERPC64;
2638                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
2639                         CFLAGS="$CFLAGS -mminimal-toc"
2640                 else
2641                         TARGET=POWERPC;
2642                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
2643                 fi
2644                 arch_target=ppc;
2645                 JIT_SUPPORTED=yes
2646                 case $host_os in
2647                   linux*|darwin*)
2648                         sgen_supported=true
2649                         ;;
2650                 esac
2651                 ;;
2652         arm*-darwin*)
2653                 TARGET=ARM;
2654                 arch_target=arm;
2655                 ACCESS_UNALIGNED="no"
2656                 JIT_SUPPORTED=yes
2657                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2658                 sgen_supported=true
2659                 ;;
2660         arm*-linux*)
2661                 TARGET=ARM;
2662                 arch_target=arm;
2663                 ACCESS_UNALIGNED="no"
2664                 JIT_SUPPORTED=yes
2665                 sgen_supported=true
2666                 AOT_SUPPORTED="yes"
2667                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2668                 ;;
2669 # TODO: make proper support for NaCl host.
2670 #        arm*-*nacl)
2671 #               TARGET=ARM;
2672 #               arch_target=arm;
2673 #               ACCESS_UNALIGNED="no"
2674 #               JIT_SUPPORTED=yes
2675 #               sgen_supported=true
2676 #               AOT_SUPPORTED="no"
2677 #               ;;
2678         aarch64-*)
2679                 # https://lkml.org/lkml/2012/7/15/133
2680                 TARGET=ARM64
2681                 arch_target=arm64
2682                 JIT_SUPPORTED=yes
2683                 sgen_supported=true
2684                 boehm_supported=false
2685                 ;;
2686         s390x-*-linux*)
2687                 TARGET=S390X;
2688                 arch_target=s390x;
2689                 ACCESS_UNALIGNED="yes"
2690                 JIT_SUPPORTED=yes
2691                 sgen_supported=true
2692                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
2693                 ;;
2694 esac
2695
2696 HOST=$TARGET
2697
2698 if test "x$host" != "x$target"; then
2699    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
2700    enable_mcs_build=no
2701    case "$target" in
2702    arm*-darwin*)
2703                 TARGET=ARM;
2704                 arch_target=arm;
2705                 ACCESS_UNALIGNED="no"
2706                 JIT_SUPPORTED=yes
2707                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2708                 jit_wanted=true
2709                 # Can't use tls, since it depends on the runtime detection of tls offsets
2710                 # in mono-compiler.h
2711                 with_tls=pthread
2712                 ;;
2713    powerpc64-ps3-linux-gnu)
2714                 TARGET=POWERPC64
2715                 arch_target=powerpc64
2716                 AC_DEFINE(TARGET_PS3, 1, [...])
2717                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2718                 # uses this define
2719                 AC_DEFINE(__mono_ppc64__, 1, [...])
2720                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2721                 sizeof_register=8
2722                 target_byte_order=G_BIG_ENDIAN
2723                 ;;
2724    powerpc64-xbox360-linux-gnu)
2725                 TARGET=POWERPC64
2726                 arch_target=powerpc64
2727                 AC_DEFINE(TARGET_XBOX360, 1, [...])
2728                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2729                 # uses this define
2730                 sizeof_register=8
2731                 target_byte_order=G_BIG_ENDIAN
2732                 ;;
2733    x86_64-*-nacl)
2734                 TARGET=AMD64
2735                 arch_target=amd64
2736                 AC_DEFINE(TARGET_AMD64, 1, [...])
2737                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2738                 sizeof_register=8
2739                 ;;
2740 # TODO: make proper support for NaCl target.
2741 #   arm*-*nacl)
2742 #               TARGET=ARM
2743 #               arch_target=arm
2744 #               AC_DEFINE(TARGET_ARM, 1, [...])
2745 #               ACCESS_UNALIGNED="no"
2746 #               JIT_SUPPORTED=yes
2747 #               sizeof_register=4
2748 #               CPPFLAGS="$CPPFLAGS \
2749 #                    -D__ARM_EABI__ \
2750 #                    -D__arm__ \
2751 #                    -D__portable_native_client__ \
2752 #                    -Dtimezone=_timezone \
2753 #                    -DDISABLE_SOCKETS \
2754 #                    -DDISABLE_ATTACH \
2755 #                    -DUSE_NEWLIB"
2756 #               jit_wanted=true
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                 JIT_SUPPORTED=yes
2774                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2775                 jit_wanted=true
2776                 # Can't use tls, since it depends on the runtime detection of tls offsets
2777                 # in mono-compiler.h
2778                 with_tls=pthread
2779                 target_mach=no
2780                 case "$target" in
2781                 armv7l-unknown-linux-gnueabi*)
2782                         # TEGRA
2783                         CPPFLAGS="$CPPFLAGS"
2784                         ;;
2785                 armv5-*-linux-androideabi*)
2786                         CPPFLAGS="$CPPFLAGS"
2787                         ;;
2788                 esac
2789                 ;;
2790         aarch64-*)
2791                 TARGET=ARM64
2792                 JIT_SUPPORTED=yes
2793                 jit_wanted=true
2794                 ;;
2795         *)
2796                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
2797         esac
2798 fi
2799
2800 case "$TARGET" in
2801 X86)
2802         AC_DEFINE(TARGET_X86, 1, [...])
2803         ;;
2804 AMD64)
2805         AC_DEFINE(TARGET_AMD64, 1, [...])
2806         ;;
2807 ARM)
2808         AC_DEFINE(TARGET_ARM, 1, [...])
2809         ;;
2810 ARM64)
2811         AC_DEFINE(TARGET_ARM64, 1, [...])
2812         ;;
2813 POWERPC)
2814         AC_DEFINE(TARGET_POWERPC, 1, [...])
2815         ;;
2816 POWERPC64)
2817         AC_DEFINE(TARGET_POWERPC, 1, [...])
2818         AC_DEFINE(TARGET_POWERPC64, 1, [...])
2819         ;;
2820 S390X)
2821         AC_DEFINE(TARGET_S390X, 1, [...])
2822         ;;
2823 MIPS)
2824         AC_DEFINE(TARGET_MIPS, 1, [...])
2825         ;;
2826 IA64)
2827         AC_DEFINE(TARGET_IA64, 1, [...])
2828         ;;
2829 SPARC)
2830         AC_DEFINE(TARGET_SPARC, 1, [...])
2831         ;;
2832 SPARC64)
2833         AC_DEFINE(TARGET_SPARC64, 1, [...])
2834         ;;
2835 esac
2836
2837 dnl Use GCC atomic ops if they work on the target.
2838 if test x$GCC = "xyes"; then
2839         case $TARGET in
2840         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
2841                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
2842                 ;;
2843         esac
2844 fi
2845
2846 if test "x$target_mach" = "xyes"; then
2847    if test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
2848           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
2849           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
2850           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
2851    else
2852        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
2853        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
2854        #error fail this for ios
2855        #endif
2856        return 0;
2857        ], [
2858                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
2859           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
2860           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
2861        ], [
2862           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
2863           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
2864           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
2865        ])
2866         fi
2867    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
2868 fi
2869
2870 if test "x$sizeof_register" = "x4"; then
2871    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
2872 elif test "x$sizeof_register" = "x8"; then
2873    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
2874 else
2875    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
2876 fi
2877
2878 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
2879    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
2880 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
2881    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
2882 else
2883    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
2884 fi
2885
2886 if test "x$have_visibility_hidden" = "xyes"; then
2887    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
2888 fi
2889
2890 if test "x$have_deprecated" = "xyes"; then
2891    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
2892 fi
2893
2894 dnl 
2895 dnl Simple Generational checks (sgen)
2896 dnl
2897 if $sgen_supported; then
2898    build_sgen_default=yes
2899 else
2900    build_sgen_default=no
2901 fi
2902 SGEN_DEFINES=
2903 AC_ARG_WITH(sgen, [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=$build_sgen_default])
2904 if test x$buildsgen = xyes; then
2905    if $sgen_supported; then
2906        SGEN_DEFINES="-DHAVE_SGEN_GC -DHAVE_MOVING_COLLECTOR"
2907        gc_msg="sgen and $gc_msg"
2908    else
2909        buildsgen=no
2910        AC_MSG_WARN("Sgen is not supported on this platform")
2911    fi
2912 fi
2913 AC_SUBST(SGEN_DEFINES)
2914 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
2915
2916 USEJIT=false
2917 if test x$JIT_SUPPORTED = xyes; then
2918    if $jit_wanted; then
2919       USEJIT=true
2920       jit_status="Building and using the JIT"
2921    else
2922       if $interp_wanted; then
2923          jit_status="Building the JIT, defaulting to the interpreter"
2924       else
2925          AC_ERROR(No JIT or interpreter support available or selected.)
2926       fi
2927    fi
2928 else
2929    if test x$interp_wanted = xtrue; then
2930       jit_status="interpreter"
2931    else
2932       AC_ERROR(No JIT or interpreter support available or selected.)
2933    fi
2934 fi
2935
2936 AM_CONDITIONAL(USE_JIT, test x$USEJIT = xtrue)
2937
2938 libsuffix=".so"
2939
2940 case "$host" in
2941      *-*-darwin*)
2942         libsuffix=".dylib"
2943         LIBC="libc.dylib"
2944         INTL="libintl.dylib"
2945         SQLITE="libsqlite.0.dylib"
2946         SQLITE3="libsqlite3.0.dylib"
2947         X11="libX11.dylib"
2948         GDKX11="libgdk-x11-2.0.dylib"
2949         GTKX11="libgtk-x11-2.0.dylib"
2950         ;;
2951      *-*-*netbsd*)
2952         LIBC="libc.so.12"
2953         INTL="libintl.so.0"
2954         ;;
2955     *-*-*freebsd*)
2956         LIBC="libc.so"
2957         INTL="libintl.so"
2958         SQLITE="libsqlite.so"
2959         SQLITE3="libsqlite3.so"
2960         ;;
2961     *-*-*openbsd*)
2962         LIBC="libc.so"
2963         INTL="libintl.so"
2964         SQLITE="libsqlite.so"
2965         SQLITE3="libsqlite3.so"
2966         ;;
2967     *-*-*linux*)
2968         AC_PATH_X
2969         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
2970         AC_MSG_CHECKING(for the soname of libX11.so)
2971         for i in $x_libraries $dlsearch_path; do
2972                 for r in 4 5 6; do
2973                         if test -f $i/libX11.so.$r; then
2974                                 X11=libX11.so.$r
2975                                 AC_MSG_RESULT($X11)
2976                         fi
2977                 done
2978         done
2979         
2980         if test "x$X11" = "xlibX11.so"; then
2981                 AC_MSG_WARN([Could not find X development libs. Do you have the -devel package installed? Assuming libX11.so.6...]);
2982                 X11=libX11.so.6
2983         fi
2984         AC_MSG_CHECKING(for the soname of libXinerama.so)
2985         for i in $x_libraries $dlsearch_path; do
2986                 for r in 1 2 3; do
2987                         if test -f $i/libXinerama.so.$r; then
2988                                 XINERAMA=libXinerama.so.$r
2989                                 AC_MSG_RESULT($XINERAMA)
2990                         fi
2991                 done
2992         done
2993         if test "x$XINERAMA" = "xlibXinerama.so"; then
2994                 AC_MSG_WARN([Could not find Xinerama development libs. Support for multiple monitors might not work...]);
2995         fi
2996         ;;
2997 esac
2998
2999
3000 AC_SUBST(libsuffix)
3001
3002 AC_ARG_WITH([libgdiplus],
3003         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3004         [], [with_libgdiplus=installed])
3005
3006 # default install location
3007 libgdiplus_install_loc=libgdiplus${libsuffix}
3008 case $with_libgdiplus in
3009     no|installed)
3010     libgdiplus_loc=
3011     ;;
3012
3013     yes|sibling)
3014     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3015     ;;
3016
3017     /*) # absolute path, assume it is an install location
3018     libgdiplus_loc=$with_libgdiplus
3019     libgdiplus_install_loc=$with_libgdiplus
3020     ;;
3021
3022     *)
3023     libgdiplus_loc=`pwd`/$with_libgdiplus
3024     ;;
3025 esac
3026 AC_SUBST([libgdiplus_loc])
3027 AC_SUBST([libgdiplus_install_loc])
3028
3029 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3030 if test "x$icall_symbol_map" = "xyes"; then
3031    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3032 fi
3033
3034 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3035 if test "x$icall_export" = "xyes"; then
3036    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3037 fi
3038
3039 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3040 if test "x$icall_tables" = "xno"; then
3041    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3042 fi
3043
3044 if test "x$with_tls" = "x__thread"; then
3045         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3046         # Pass the information to libgc
3047         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3048         AC_MSG_CHECKING(if the tls_model attribute is supported)
3049         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3050                 ], [
3051                         AC_MSG_RESULT(yes)
3052                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3053                 ], [
3054                         AC_MSG_RESULT(no)
3055         ])
3056 fi
3057
3058 if test ${TARGET} = ARM; then
3059         dnl ******************************************
3060         dnl *** Check to see what FPU is available ***
3061         dnl ******************************************
3062         AC_MSG_CHECKING(which FPU to use)
3063
3064         #
3065         # This is a bit tricky:
3066         #
3067         # if (__ARM_PCS_VFP) {
3068         #       /* mfloat-abi=hard == VFP with hard ABI */
3069         # } elif (!__SOFTFP__) {
3070         #       /* mfloat-abi=softfp == VFP with soft ABI */
3071         # } else {
3072         #       /* mfloat-abi=soft == no VFP */
3073         # }
3074         #
3075         # The exception is iOS (w/ GCC) where none of the above
3076         # are defined (but iOS always uses the 'softfp' ABI).
3077         #
3078         # No support for FPA.
3079         #
3080
3081         fpu=NONE
3082
3083         # iOS GCC always uses the 'softfp' ABI.
3084         if test x"$GCC" = xyes && test x$platform_darwin = xyes; then
3085                 fpu=VFP
3086         fi
3087
3088         # Are we using the 'hard' ABI?
3089         if test x$fpu = xNONE; then
3090                 AC_TRY_COMPILE([], [
3091                         #ifndef __ARM_PCS_VFP
3092                         #error "Float ABI is not 'hard'"
3093                         #endif
3094                         return 0;
3095                 ], [
3096                         fpu=VFP_HARD
3097                 ], [
3098                         fpu=NONE
3099                 ])
3100         fi
3101
3102         # No 'hard' ABI. 'soft' or 'softfp'?
3103         if test x$fpu = xNONE; then
3104                 AC_TRY_COMPILE([], [
3105                         #ifdef __SOFTFP__
3106                         #error "Float ABI is not 'softfp'"
3107                         #endif
3108                         return 0;
3109                 ], [
3110                         fpu=VFP
3111                 ], [
3112                         fpu=NONE
3113                 ])
3114         fi
3115
3116         AC_MSG_RESULT($fpu)
3117         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3118         unset fpu
3119
3120         dnl *********************************************
3121         dnl *** Check which ARM version(s) we can use ***
3122         dnl *********************************************
3123         AC_MSG_CHECKING(which ARM version to use)
3124
3125         AC_TRY_COMPILE([], [
3126                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3127                 #error Not on ARM v5.
3128                 #endif
3129                 return 0;
3130         ], [
3131                 arm_v5=yes
3132
3133                 arm_ver=ARMv5
3134         ], [])
3135
3136         AC_TRY_COMPILE([], [
3137                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3138                 #error Not on ARM v6.
3139                 #endif
3140                 return 0;
3141         ], [
3142                 arm_v5=yes
3143                 arm_v6=yes
3144
3145                 arm_ver=ARMv6
3146         ], [])
3147
3148         AC_TRY_COMPILE([], [
3149                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3150                 #error Not on ARM v7.
3151                 #endif
3152                 return 0;
3153         ], [
3154                 arm_v5=yes
3155                 arm_v6=yes
3156                 arm_v7=yes
3157
3158                 arm_ver=ARMv7
3159         ], [])
3160
3161         AC_MSG_RESULT($arm_ver)
3162
3163         if test x$arm_v5 = xyes; then
3164                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3165                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3166         fi
3167
3168         if test x$arm_v6 = xyes; then
3169                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3170                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3171         fi
3172
3173         if test x$arm_v7 = xyes; then
3174                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3175                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3176         fi
3177 fi
3178
3179 if test ${TARGET} = ARM; then
3180         if test "x${with_jumptables}" = "xyes"; then
3181                 AC_DEFINE(USE_JUMP_TABLES, 1, Use jump tables in JIT)
3182         fi
3183 fi
3184
3185 if test ${TARGET} = unknown; then
3186         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3187         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3188 fi
3189
3190 if test ${ACCESS_UNALIGNED} = no; then
3191         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3192 fi
3193
3194 case "x$libgc" in
3195         xincluded)
3196                 # Pass CPPFLAGS to libgc configure
3197                 # We should use a separate variable for this to avoid passing useless and
3198                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3199                 # This should be executed late so we pick up the final version of CPPFLAGS
3200                 # The problem with this approach, is that during a reconfigure, the main
3201                 # configure scripts gets invoked with these arguments, so we use separate
3202                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3203                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3204                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3205                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3206                 fi
3207                 # Don't pass -finstrument-for-thread-suspension in, 
3208                 # if these are instrumented it will be very bad news 
3209                 # (infinite recursion, undefined parking behavior, etc)
3210                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3211                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3212                 if test "x$support_boehm" = "xyes"; then
3213                         AC_CONFIG_SUBDIRS(libgc)
3214                 fi
3215                 ;;
3216 esac
3217
3218 AC_ARG_WITH(profile2,  [  --with-profile2=yes,no          If you want to install the 2.0/3.5 FX (defaults to yes)],            [], [with_profile2=yes])
3219 AC_ARG_WITH(profile4,  [  --with-profile4=yes,no          If you want to install the 4.0 FX (defaults to yes)],                [], [with_profile4=yes])
3220 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])
3221 AC_ARG_WITH(monodroid, [  --with-monodroid=yes,no         If you want to build the MonoDroid assemblies (defaults to no)],     [], [with_monodroid=no])
3222 AC_ARG_WITH(monotouch, [  --with-monotouch=yes,no,only    If you want to build the MonoTouch assemblies (defaults to no)],     [], [with_monotouch=no])
3223 AC_ARG_WITH(xammac,    [  --with-xammac=yes,no,only       If you want to build the Xamarin.Mac assemblies (defaults to no)],   [], [with_xammac=no])
3224
3225 OPROFILE=no
3226 AC_ARG_WITH(oprofile,[  --with-oprofile=no,<oprofile install dir>   Enable oprofile support (defaults to no)],[
3227         if test x$with_oprofile != xno; then
3228             oprofile_include=$with_oprofile/include
3229             if test ! -f $oprofile_include/opagent.h; then
3230                   AC_MSG_ERROR([oprofile include file not found at $oprofile_include/opagent.h])
3231                 fi
3232             OPROFILE=yes
3233                 OPROFILE_CFLAGS="-I$oprofile_include"
3234             OPROFILE_LIBS="-L$with_oprofile/lib/oprofile -lopagent"
3235             AC_DEFINE(HAVE_OPROFILE,1,[Have oprofile support])
3236         fi
3237 ])
3238
3239 MALLOC_MEMPOOLS=no
3240 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3241         if test x$with_malloc_mempools = xyes; then
3242                 MALLOC_MEMPOOLS=yes
3243                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3244         fi
3245 ])
3246
3247
3248 DISABLE_MCS_DOCS=no
3249 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3250         if test x$with_mcs_docs != xyes; then
3251                 DISABLE_MCS_DOCS=yes
3252         fi
3253 ])
3254 if test x$with_profile4 != xyes; then
3255         DISABLE_MCS_DOCS=yes
3256 fi
3257
3258 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)],[
3259         if test x$with_lazy_gc_thread_creation != xno ; then
3260                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3261         fi
3262 ], [with_lazy_gc_thread_creation=no])
3263
3264 AC_CHECK_HEADER([malloc.h], 
3265                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
3266                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3267
3268 if test x"$GCC" = xyes; then
3269         # Implicit function declarations are not 64 bit safe
3270         # Do this late, since this causes lots of configure tests to fail
3271         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3272         # jay has a lot of implicit declarations
3273         JAY_CFLAGS="-Wno-implicit-function-declaration"
3274 fi
3275
3276 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3277 # instead of libmono-static.a
3278 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3279    LIBMONO_LA=libmini-static.la
3280 else
3281    if test x$buildsgen = xyes; then
3282       LIBMONO_LA=libmonosgen-$API_VER.la
3283    else
3284       LIBMONO_LA=libmonoboehm-$API_VER.la
3285    fi
3286 fi
3287 AC_SUBST(LIBMONO_LA)
3288
3289 dnl
3290 dnl Consistency settings
3291 dnl
3292 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
3293    DISABLE_MCS_DOCS=yes
3294    with_profile2=no
3295    with_profile4=no
3296    with_profile4_5=no
3297    with_monodroid=no
3298    with_monotouch=no
3299    with_xammac=no
3300 fi
3301
3302 if test x$DISABLE_MCS_DOCS = xyes; then
3303    docs_dir=""
3304 else
3305    docs_dir=docs
3306 fi
3307 AC_SUBST(docs_dir)
3308
3309 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
3310 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
3311
3312 AM_CONDITIONAL(HAVE_OPROFILE, test x$OPROFILE = xyes)
3313 AC_SUBST(OPROFILE_CFLAGS)
3314 AC_SUBST(OPROFILE_LIBS)
3315
3316 libmono_ldflags="$libmono_ldflags $LIBS"
3317
3318 AM_CONDITIONAL(INSTALL_2_0, [test "x$with_profile2" = xyes])
3319 AM_CONDITIONAL(INSTALL_4_0, [test "x$with_profile4" = xyes])
3320 AM_CONDITIONAL(INSTALL_4_5, [test "x$with_profile4_5" = xyes])
3321 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
3322 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
3323 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
3324 AM_CONDITIONAL(ONLY_MONOTOUCH, [test "x$with_monotouch" = "xonly"])
3325 AM_CONDITIONAL(ONLY_XAMMAC, [test "x$with_xammac" = "xonly"])
3326
3327 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
3328 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
3329 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
3330 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
3331 AM_CONDITIONAL(X86, test x$TARGET = xX86)
3332 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
3333 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
3334 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
3335 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
3336 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
3337 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
3338 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
3339 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
3340 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
3341 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
3342 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
3343 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
3344 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
3345
3346 AM_CONDITIONAL(JIT_SUPPORTED, test x$JIT_SUPPORTED = xyes)
3347 AM_CONDITIONAL(INTERP_SUPPORTED, test x$interp_wanted = xtrue)
3348 AM_CONDITIONAL(INCLUDED_LIBGC, test x$libgc = xincluded)
3349
3350 AC_SUBST(LIBC)
3351 AC_SUBST(INTL)
3352 AC_SUBST(SQLITE)
3353 AC_SUBST(SQLITE3)
3354 AC_SUBST(X11)
3355 AC_SUBST(GDKX11)
3356 AC_SUBST(GTKX11)
3357 AC_SUBST(XINERAMA)
3358 AC_DEFINE_UNQUOTED(ARCHITECTURE,"$arch_target",[The architecture this is running on])
3359 AC_SUBST(arch_target)
3360 AC_SUBST(CFLAGS)
3361 AC_SUBST(CPPFLAGS)
3362 AC_SUBST(LDFLAGS)
3363
3364 mono_build_root=`pwd`
3365 AC_SUBST(mono_build_root)
3366
3367 if test x$USEJIT = xtrue; then
3368   mono_runtime=mono/mini/mono
3369 else
3370   mono_runtime=mono/interpreter/mint
3371 fi
3372 AC_SUBST(mono_runtime)
3373
3374 mono_cfg_root=$mono_build_root/runtime
3375 if test x$host_win32 = xyes; then
3376   if test "x$cross_compiling" = "xno"; then
3377     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
3378   else
3379     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
3380   fi
3381 else
3382   mono_cfg_dir=$mono_cfg_root/etc
3383 fi
3384 AC_SUBST(mono_cfg_dir)
3385
3386 AC_CONFIG_FILES([po/mcs/Makefile.in])
3387
3388 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
3389 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
3390
3391 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
3392 [   depth=../../../..
3393     case $srcdir in
3394     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3395     .) reldir=$depth ;;
3396     *) reldir=$depth/$srcdir ;;
3397     esac
3398     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
3399     cd runtime/etc/mono/1.0
3400     rm -f machine.config
3401     $LN_S $reldir/data/net_1_1/machine.config machine.config
3402     cd $depth
3403 ],[LN_S='$LN_S'])
3404
3405 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
3406 [   depth=../../../..
3407     case $srcdir in
3408     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3409     .) reldir=$depth ;;
3410     *) reldir=$depth/$srcdir ;;
3411     esac
3412     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3413     cd runtime/etc/mono/2.0
3414     rm -f machine.config
3415     $LN_S $reldir/data/net_2_0/machine.config machine.config
3416     cd $depth
3417 ],[LN_S='$LN_S'])
3418
3419 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
3420 [   depth=../../../..
3421     case $srcdir in
3422     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3423     .) reldir=$depth ;;
3424     *) reldir=$depth/$srcdir ;;
3425     esac
3426     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3427     cd runtime/etc/mono/2.0
3428     rm -f web.config
3429     $LN_S $reldir/data/net_2_0/web.config web.config
3430     cd $depth
3431 ],[LN_S='$LN_S'])
3432
3433 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
3434 [   depth=../../..
3435     case $srcdir in
3436     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3437     .) reldir=$depth ;;
3438     *) reldir=$depth/$srcdir ;;
3439     esac
3440     $ac_aux_dir/install-sh -d runtime/etc/mono/
3441     cd runtime/etc/mono/
3442     rm -f browscap.ini
3443     $LN_S $reldir/data/browscap.ini browscap.ini
3444     cd $depth
3445 ],[LN_S='$LN_S'])
3446
3447 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
3448 [   depth=../../../../..
3449     case $srcdir in
3450     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3451     .) reldir=$depth ;;
3452     *) reldir=$depth/$srcdir ;;
3453     esac
3454     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
3455     cd runtime/etc/mono/2.0/Browsers
3456     rm -f Compat.browser
3457     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3458     cd $depth
3459 ],[LN_S='$LN_S'])
3460
3461 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
3462 [   depth=../../../../..
3463     case $srcdir in
3464     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3465     .) reldir=$depth ;;
3466     *) reldir=$depth/$srcdir ;;
3467     esac
3468     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
3469     cd runtime/etc/mono/4.0/Browsers
3470     rm -f Compat.browser
3471     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3472     cd $depth
3473 ],[LN_S='$LN_S'])
3474
3475 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
3476 [   depth=../../../../..
3477     case $srcdir in
3478     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3479     .) reldir=$depth ;;
3480     *) reldir=$depth/$srcdir ;;
3481     esac
3482     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
3483     cd runtime/etc/mono/4.5/Browsers
3484     rm -f Compat.browser
3485     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3486     cd $depth
3487 ],[LN_S='$LN_S'])
3488
3489 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
3490 [   depth=../../../..
3491     case $srcdir in
3492     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3493     .) reldir=$depth ;;
3494     *) reldir=$depth/$srcdir ;;
3495     esac
3496     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3497     cd runtime/etc/mono/4.0
3498     rm -f machine.config
3499     $LN_S $reldir/data/net_4_0/machine.config machine.config
3500     cd $depth
3501 ],[LN_S='$LN_S'])
3502
3503 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
3504 [   depth=../../../..
3505     case $srcdir in
3506     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3507     .) reldir=$depth ;;
3508     *) reldir=$depth/$srcdir ;;
3509     esac
3510     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3511     cd runtime/etc/mono/4.0
3512     rm -f web.config
3513     $LN_S $reldir/data/net_4_0/web.config web.config
3514     cd $depth
3515 ],[LN_S='$LN_S'])
3516
3517 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
3518 [   depth=../../../..
3519     case $srcdir in
3520     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3521     .) reldir=$depth ;;
3522     *) reldir=$depth/$srcdir ;;
3523     esac
3524     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3525     cd runtime/etc/mono/4.5
3526     rm -f machine.config
3527     $LN_S $reldir/data/net_4_5/machine.config machine.config
3528     cd $depth
3529 ],[LN_S='$LN_S'])
3530
3531 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
3532 [   depth=../../../..
3533     case $srcdir in
3534     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3535     .) reldir=$depth ;;
3536     *) reldir=$depth/$srcdir ;;
3537     esac
3538     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3539     cd runtime/etc/mono/4.5
3540     rm -f web.config
3541     $LN_S $reldir/data/net_4_5/web.config web.config
3542     cd $depth
3543 ],[LN_S='$LN_S'])
3544
3545 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])
3546
3547 AC_OUTPUT([
3548 Makefile
3549 mono-core.spec
3550 mono-uninstalled.pc
3551 scripts/mono-find-provides
3552 scripts/mono-find-requires
3553 mono/Makefile
3554 mono/utils/Makefile
3555 mono/metadata/Makefile
3556 mono/dis/Makefile
3557 mono/cil/Makefile
3558 mono/arch/Makefile
3559 mono/arch/x86/Makefile
3560 mono/arch/amd64/Makefile
3561 mono/arch/ppc/Makefile
3562 mono/arch/sparc/Makefile
3563 mono/arch/s390x/Makefile
3564 mono/arch/arm/Makefile
3565 mono/arch/arm64/Makefile
3566 mono/arch/ia64/Makefile
3567 mono/arch/mips/Makefile
3568 mono/interpreter/Makefile
3569 mono/tests/Makefile
3570 mono/tests/tests-config
3571 mono/tests/assemblyresolve/Makefile
3572 mono/tests/cas/Makefile
3573 mono/tests/cas/assembly/Makefile
3574 mono/tests/cas/demand/Makefile
3575 mono/tests/cas/inheritance/Makefile
3576 mono/tests/cas/linkdemand/Makefile
3577 mono/tests/cas/threads/Makefile
3578 mono/tests/gc-descriptors/Makefile
3579 mono/unit-tests/Makefile
3580 mono/benchmark/Makefile
3581 mono/monograph/Makefile
3582 mono/io-layer/Makefile
3583 mono/mini/Makefile
3584 mono/profiler/Makefile
3585 m4/Makefile
3586 ikvm-native/Makefile
3587 scripts/Makefile
3588 man/Makefile
3589 docs/Makefile
3590 data/Makefile
3591 data/net_2_0/Makefile
3592 data/net_4_0/Makefile
3593 data/net_4_5/Makefile
3594 data/net_2_0/Browsers/Makefile
3595 data/net_4_0/Browsers/Makefile
3596 data/net_4_5/Browsers/Makefile
3597 data/mint.pc
3598 data/mono-2.pc
3599 data/monosgen-2.pc
3600 data/mono.pc
3601 data/mono-cairo.pc
3602 data/mono-nunit.pc
3603 data/mono-options.pc
3604 data/mono-lineeditor.pc
3605 data/monodoc.pc
3606 data/dotnet.pc
3607 data/dotnet35.pc
3608 data/wcf.pc
3609 data/cecil.pc
3610 data/system.web.extensions_1.0.pc
3611 data/system.web.extensions.design_1.0.pc
3612 data/system.web.mvc.pc
3613 data/system.web.mvc2.pc
3614 data/system.web.mvc3.pc
3615 data/aspnetwebstack.pc
3616 data/reactive.pc
3617 samples/Makefile
3618 support/Makefile
3619 data/config
3620 tools/Makefile
3621 tools/locale-builder/Makefile
3622 tools/sgen/Makefile
3623 runtime/Makefile
3624 msvc/Makefile
3625 po/Makefile
3626 ])
3627
3628 # Update all submodules recursively to ensure everything is checked out
3629 $srcdir/scripts/update_submodules
3630
3631 if test x$host_win32 = xyes; then
3632    # Get rid of 'cyg' prefixes in library names
3633    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
3634    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
3635    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
3636    # executable doesn't work...
3637    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
3638 fi
3639
3640 if test x$platform_darwin = xyes; then
3641    # This doesn't seem to be required and it slows down parallel builds
3642    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
3643 fi
3644
3645 (
3646   case $prefix in
3647   NONE) prefix=$ac_default_prefix ;;
3648   esac
3649   case $exec_prefix in
3650   NONE) exec_prefix='${prefix}' ;;
3651   esac
3652
3653   #
3654   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
3655   # any existing config.make.  This allows people to share the same source tree
3656   # with different build directories, one native and one cross
3657   #
3658   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
3659
3660     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
3661
3662     echo "prefix=$prefix" > $mcs_topdir/build/config.make
3663     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
3664     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
3665     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
3666     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
3667     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
3668     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
3669     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
3670
3671     case $INSTALL in
3672     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
3673     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
3674     esac
3675
3676     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
3677
3678     export VERSION
3679     [myver=$($AWK 'BEGIN {
3680       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
3681       if(length(vsplit [1]) > 4) {
3682         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
3683       }
3684       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
3685     }')]
3686
3687     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
3688
3689     if test x$platform_darwin = xyes; then
3690       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
3691     fi
3692
3693         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
3694            enable_system_aot=yes
3695         fi
3696
3697     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
3698       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
3699     fi
3700
3701     if test x$DISABLE_MCS_DOCS = xyes; then
3702       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
3703     fi
3704
3705     if test x$has_extension_module != xno; then
3706         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
3707     fi
3708
3709         default_profile=net_2_0
3710     if test -z "$INSTALL_4_0_TRUE"; then :
3711                 default_profile=net_4_0
3712     fi
3713     if test -z "$INSTALL_MONODROID_TRUE"; then :
3714                 default_profile=monodroid
3715     fi
3716     if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
3717                 default_profile=monotouch
3718     fi
3719         if test -z "$INSTALL_XAMMAC_TRUE"; then :
3720                 default_profile=xammac
3721         fi
3722     if test -z "$INSTALL_4_5_TRUE"; then :
3723                 default_profile=net_4_5
3724     fi
3725     
3726     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
3727     
3728     if test "x$test_bcl_opt" = "xyes"; then    
3729       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
3730     fi
3731
3732   fi
3733
3734   # if we have an olive folder, override the default settings
3735   if test -d $olivedir; then
3736
3737     if test x$cross_compiling = xno && test x$enable_olive_build != xno; then
3738
3739       test -w $srcdir/$olivedir/build || chmod +w $srcdir/$olivedir/build
3740
3741       echo "prefix=$prefix" > $srcdir/$olivedir/build/config.make
3742       echo "exec_prefix=$exec_prefix" >> $srcdir/$olivedir/build/config.make
3743       echo 'mono_libdir=${exec_prefix}/lib' >> $srcdir/$olivedir/build/config.make
3744       echo 'MCS_FLAGS = $(PLATFORM_DEBUG_FLAGS)' >> $srcdir/$olivedir/build/config.make
3745       echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $srcdir/$olivedir/build/config.make
3746       echo "MONO_VERSION = $myver" >> $srcdir/$olivedir/build/config.make
3747     fi
3748   fi
3749
3750 )
3751
3752 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
3753
3754 echo "
3755         mcs source:    $mcsdir
3756
3757    Engine:
3758         Host:          $host
3759         Target:        $target
3760         GC:            $gc_msg 
3761         TLS:           $with_tls
3762         SIGALTSTACK:   $with_sigaltstack
3763         Engine:        $jit_status
3764         oprofile:      $OPROFILE
3765         BigArrays:     $enable_big_arrays
3766         DTrace:        $enable_dtrace
3767         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
3768
3769    Libraries:
3770         .NET 2.0/3.5:  $with_profile2
3771         .NET 4.0:      $with_profile4
3772         .NET 4.5:      $with_profile4_5
3773         MonoDroid:     $with_monodroid
3774         MonoTouch:     $with_monotouch
3775         Xamarin.Mac:   $with_xammac
3776         JNI support:   $jdk_headers_found
3777         libgdiplus:    $libgdiplus_msg
3778         zlib:          $zlib_msg
3779         $disabled
3780 "
3781 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
3782    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
3783 fi