Merge pull request #2921 from lewurm/lower-typechecks-later
[mono.git] / configure.ac
1 # Process this file with autoconf to produce a configure script.
2 #AC_PREREQ([2.62])
3
4 # when bumping version number below, keep it in sync with man/mono.1 too
5 AC_INIT(mono, [4.5.2],
6         [http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono])
7
8 AC_CONFIG_SRCDIR([README.md])
9 AC_CONFIG_MACRO_DIR([m4])
10 AC_CANONICAL_SYSTEM
11 AC_CANONICAL_HOST
12
13 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
14 # The extra brackets are to foil regex-based scans.
15 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
16
17 AM_INIT_AUTOMAKE([1.9 dist-bzip2 tar-ustar no-dist-gzip foreign subdir-objects]
18                  m4_esyscmd([case `automake --version | head -n 1` in    # parallel-tests is default in automake 1.13+, we need to explicitly enable it
19                              *1.11*|*1.12*) echo parallel-tests;;        # for 1.11 and 1.12 but not below as those versions don't recognize the flag
20                              esac]))                                     # TODO: remove this hack once we require automake 1.11+
21
22 AC_CONFIG_HEADERS([config.h])
23 AM_MAINTAINER_MODE
24
25 API_VER=2.0
26 AC_SUBST(API_VER)
27
28 AC_PROG_LN_S
29
30 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
31
32 case $host_os in
33 *cygwin* )
34                  echo "Run configure using ./configure --host=i686-pc-mingw32"
35                  exit 1
36 esac
37
38 # In case of cygwin, override LN_S, irrespective of what it determines.
39 # The build uses cygwin, but the actual runtime doesn't.
40 case $host_os in
41 *cygwin* ) LN_S='cp -p';;
42 esac
43
44 #
45 # libgc defaults
46 #
47 libgc_configure_args=
48
49 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
50 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
51 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
52 CFLAGS_FOR_LIBGC=$CFLAGS
53 CPPFLAGS_FOR_EGLIB=$CPPFLAGS
54 CFLAGS_FOR_EGLIB=$CFLAGS
55
56 # libgc uses some deprecated APIs
57 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
58
59 #
60 # These are the flags that need to be stored in the mono.pc file for 
61 # compiling code that will embed Mono
62 #
63 libmono_cflags=""
64 libmono_ldflags=""
65 AC_SUBST(libmono_cflags)
66 AC_SUBST(libmono_ldflags)
67
68 # Variable to have relocatable .pc files (lib, or lib64)
69 reloc_libdir=`basename ${libdir}`
70 AC_SUBST(reloc_libdir)
71
72 # Set to yes if Unix sockets cannot be created in an anonymous namespace
73 need_link_unlink=no
74
75 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
76 extra_runtime_ldflags=""
77
78 # Thread configuration inspired by sleepycat's db
79 AC_MSG_CHECKING([host platform characteristics])
80 libgc_threads=no
81 has_dtrace=no
82 parallel_mark=yes
83 ikvm_native=yes
84
85 host_win32=no
86 target_win32=no
87 platform_android=no
88 host_darwin=no
89 case "$host" in
90         *-mingw*|*-*-cygwin*)
91                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
92                 AC_DEFINE(PLATFORM_NO_SYMLINKS,1,[This platform does not support symlinks])
93                 host_win32=yes
94                 mono_cv_clang=no
95                 if test "x$cross_compiling" = "xno"; then
96                         if test "x$host" = "x$build" -a "x$host" = "x$target"; then
97                                 target_win32=yes
98                         fi
99                 else
100                         if test "x$host" = "x$target"; then
101                                 target_win32=yes
102                         fi
103                 fi
104                 HOST_CC="gcc"
105                 # Windows Vista or later is required
106                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -D_WIN32_WINNT=0x0600 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
107                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi"
108                 libmono_cflags="-mms-bitfields -mwindows"
109                 libmono_ldflags="-mms-bitfields -mwindows"
110                 libdl=
111                 libgc_threads=win32
112                 with_sigaltstack=no
113                 with_tls=pthread
114                 LN_S=cp
115                 # This forces libgc to use the DllMain based thread registration code on win32
116                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
117                 ;;
118         *-*-*netbsd*)
119                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
120                 libmono_cflags="-D_REENTRANT"
121                 LDFLAGS="$LDFLAGS -pthread"
122                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
123                 libmono_ldflags="-pthread"
124                 need_link_unlink=yes
125                 libdl="-ldl"
126                 libgc_threads=pthreads
127                 with_sigaltstack=no
128                 use_sigposix=yes
129                 ;;
130         *-*-kfreebsd*-gnu)
131                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
132                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
133                 libmono_ldflags="-lpthread -pthread"
134                 libdl="-ldl"
135                 libgc_threads=pthreads
136                 need_link_unlink=yes
137                 with_sigaltstack=no
138                 use_sigposix=yes
139                 ;;
140         *-*-*freebsd*)
141                 if test "x$PTHREAD_CFLAGS" = "x"; then
142                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
143                         libmono_cflags=
144                 else
145                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
146                         libmono_cflags="$PTHREAD_CFLAGS"
147                 fi
148                 if test "x$PTHREAD_LIBS" = "x"; then
149                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
150                         libmono_ldflags="-pthread"
151                 else
152                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
153                         libmono_ldflags="$PTHREAD_LIBS"
154                 fi
155                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
156                 need_link_unlink=yes
157                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
158                 libdl=
159                 libgc_threads=pthreads
160                 use_sigposix=yes
161                 has_dtrace=yes
162                 ;;
163         *-*-*openbsd*)
164                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DPLATFORM_BSD -D_REENTRANT -DUSE_MMAP"
165                 if test "x$disable_munmap" != "xyes"; then
166                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
167                 fi
168                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
169                 LDFLAGS="$LDFLAGS -pthread"
170                 need_link_unlink=yes
171                 AC_DEFINE(PTHREAD_POINTER_ID)
172                 libdl=
173                 libgc_threads=pthreads
174                 with_sigaltstack=no
175                 use_sigposix=yes
176                 ;;
177         *-*-linux-android*)
178                 platform_android=yes
179                 AC_DEFINE(PLATFORM_ANDROID,1,[Targeting the Android platform])
180                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
181
182                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
183                 if test "x$disable_munmap" != "xyes"; then
184                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
185                 fi
186                 libmono_cflags="-D_REENTRANT"
187                 libdl="-ldl"
188                 libgc_threads=pthreads
189                 use_sigposix=yes
190
191                 with_tls=pthread
192                 with_sigaltstack=no
193                 with_static_mono=no
194
195                 # Android doesn't support boehm, as it's missing <link.h>
196                 support_boehm=no
197                 with_gc=sgen
198
199                 # isinf(3) requires -lm; see isinf check below
200                 LDFLAGS="$LDFLAGS -lm"
201
202                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
203                 # PAGE_SIZE; breaks mono/io-layer/collection.c
204                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
205                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
206                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
207
208                 # The configure check can't detect this
209                 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
210
211                 # to bypass the underscore linker check, can't work when cross-compiling
212                 mono_cv_uscore=yes
213                 mono_cv_clang=no
214                 ;;
215         *-*-linux*)
216                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
217                 if test "x$disable_munmap" != "xyes"; then
218                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
219                 fi
220                 libmono_cflags="-D_REENTRANT"
221                 libdl="-ldl"
222                 libgc_threads=pthreads
223                 use_sigposix=yes
224                 if test "x$cross_compiling" != "xno"; then
225                         # to bypass the underscore linker check, not
226                         # available during cross-compilation
227                         mono_cv_uscore=no
228                 fi
229                 case "$host" in
230                 aarch64-*)
231                         support_boehm=no
232                         with_gc=sgen
233                         ;;
234                 powerpc*-*-linux*)
235                         # https://bugzilla.novell.com/show_bug.cgi?id=504411
236                         disable_munmap=yes
237                         ;;
238                 esac
239                 ;;
240         *-*-nacl*)
241                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
242                 if test "x$disable_munmap" != "xyes"; then
243                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
244                 fi
245                 libmono_cflags="-D_REENTRANT"
246                 libdl=
247                 libgc_threads=pthreads
248                 use_sigposix=yes
249                 ikvm_native=no
250                 AC_DEFINE(DISABLE_SOCKETS,1,[Disable sockets support])
251                 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
252                 ;;
253         *-*-hpux*)
254                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
255                 # +ESdbgasm only valid on bundled cc on RISC
256                 # silently ignored for ia64
257                 if test $GCC != "yes"; then
258                         CFLAGS="$CFLAGS +ESdbgasm"
259                         # Arrange for run-time dereferencing of null
260                         # pointers to produce a SIGSEGV signal.
261                         LDFLAGS="$LDFLAGS -z"
262                 fi
263                 CFLAGS="$CFLAGS +ESdbgasm"
264                 LDFLAGS="$LDFLAGS -z"
265                 libmono_cflags="-D_REENTRANT"
266                 libmono_ldflags="-lpthread"
267                 libgc_threads=pthreads
268                 need_link_unlink=yes
269                 use_sigposix=yes
270                 ;;
271         *-*-solaris*)
272                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
273                 need_link_unlink=yes
274                 libmono_cflags="-D_REENTRANT"
275                 libgc_threads=pthreads
276                 has_dtrace=yes
277                 use_sigposix=yes
278                 enable_solaris_tar_check=yes
279                 ;;
280         *-*-darwin*)
281                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
282                 host_darwin=yes
283                 target_mach=yes
284                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
285                 libmono_cflags="-D_THREAD_SAFE"
286                 need_link_unlink=yes
287                 AC_DEFINE(PTHREAD_POINTER_ID)
288                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
289                 libdl=
290                 libgc_threads=pthreads
291                 has_dtrace=yes
292                 if test "x$cross_compiling" = "xyes"; then
293                         has_broken_apple_cpp=yes
294                 fi
295                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
296                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
297                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
298                 case "$host" in
299                         dnl Snow Leopard and newer config.guess reports as this
300                         i*86-*-darwin*)
301                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
302                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
303                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
304                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
305                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
306                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
307                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
308                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
309                                 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_CPPFLAGS"
310                                 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
311                                 ;;
312                         x*64-*-darwin*)
313                                 ;;
314                         arm*-darwin*)
315                                 has_dtrace=no
316                                 ;;                      
317                 esac
318                 ;;
319         *-*-haiku*)
320                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
321                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
322                 libdl=
323                 LIBS="$LIBS -lnetwork"
324                 need_link_unlink=yes
325                 AC_DEFINE(PTHREAD_POINTER_ID)
326                 libgc_threads=pthreads
327                 use_sigposix=yes
328                 ;;
329         *)
330                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
331                 libdl="-ldl"
332                 ;;
333 esac
334 AC_MSG_RESULT(ok)
335
336 if test x$need_link_unlink = xyes; then
337    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
338 fi
339
340 if test x$host_win32 = xyes; then
341    AC_DEFINE(HOST_WIN32, 1, [Host Platform is Win32])
342 fi
343
344 if test x$target_win32 = xyes; then
345    AC_DEFINE(TARGET_WIN32, 1, [Target Platform is Win32])
346 fi
347
348 AC_SUBST(extra_runtime_ldflags)
349 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
350 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
351 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
352 AM_CONDITIONAL(PLATFORM_DARWIN, test x$host_darwin = xyes)
353 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
354 AM_CONDITIONAL(PLATFORM_ANDROID, test x$platform_android = xyes)
355
356 AC_CHECK_TOOL(CC, gcc, gcc)
357 AC_PROG_CC
358 AC_CHECK_TOOL(CXX, g++, g++)
359 AC_PROG_CXX
360 AM_PROG_AS
361 AC_PROG_INSTALL
362 AC_PROG_AWK
363 AM_PROG_CC_C_O
364 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
365 : ${CCAS='$(CC)'}
366 # Set ASFLAGS if not already set.
367 : ${CCASFLAGS='$(CFLAGS)'}
368 AC_SUBST(CCAS)
369 AC_SUBST(CCASFLAGS)
370
371 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
372 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
373 if test "x$CXX" = "xg++"; then
374         if test "x$GXX" != "xyes"; then
375                 # automake/libtool is so broken, it requires g++ even if the c++ sources
376                 # are inside automake conditionals
377                 AC_MSG_ERROR([You need to install g++])
378         fi
379 fi
380
381 dnl may require a specific autoconf version
382 dnl AC_PROG_CC_FOR_BUILD
383 dnl CC_FOR_BUILD not automatically detected
384 CC_FOR_BUILD=$CC
385 CFLAGS_FOR_BUILD=$CFLAGS
386 BUILD_EXEEXT=
387 if test "x$cross_compiling" = "xyes"; then
388         CC_FOR_BUILD=cc
389         CFLAGS_FOR_BUILD=
390         BUILD_EXEEXT=""
391 fi
392 AC_SUBST(CC_FOR_BUILD)
393 AC_SUBST(CFLAGS_FOR_BUILD)
394 AC_SUBST(HOST_CC)
395 AC_SUBST(BUILD_EXEEXT)
396
397 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
398 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
399
400 # Set STDC_HEADERS
401 AC_HEADER_STDC
402 AC_LIBTOOL_WIN32_DLL
403 # This causes monodis to not link correctly
404 #AC_DISABLE_FAST_INSTALL
405 AM_PROG_LIBTOOL
406 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
407 DOLT
408
409 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
410 AC_SUBST(export_ldflags)
411
412 # Test whenever ld supports -version-script
413 AC_PROG_LD
414 AC_PROG_LD_GNU
415
416 AM_ICONV()
417
418 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 sys/sysctl.h libproc.h sys/prctl.h)
419 AC_CHECK_HEADERS(sys/param.h sys/socket.h sys/ipc.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 arpa/inet.h complex.h unwind.h)
420 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
421                   [], [], [#include <stddef.h>
422                   #include <sys/socket.h>
423                   #include <linux/socket.h>])
424
425 AC_CHECK_HEADERS(sys/user.h, [], [],
426 [
427 #ifdef HAVE_SYS_PARAM_H
428 # include <sys/param.h>
429 #endif
430 ])
431
432 AC_CHECK_HEADERS(linux/serial.h)
433
434 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
435 if test x$have_zlib = xyes; then
436    AC_TRY_COMPILE([#include <zlib.h>], [
437    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
438    return 0;
439    #else
440    #error No good zlib found
441    #endif
442    ],[
443         AC_MSG_RESULT(Using system zlib)
444         zlib_msg="system zlib"
445         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
446    ],[
447         AC_MSG_RESULT(Using embedded zlib)
448         have_zlib=no
449         zlib_msg="bundled zlib"
450    ])
451 fi
452
453 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
454 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
455
456 # for mono/metadata/debug-symfile.c
457 AC_CHECK_HEADERS(elf.h)
458
459 # for support
460 AC_CHECK_HEADERS(poll.h)
461 AC_CHECK_HEADERS(sys/poll.h)
462 AC_CHECK_HEADERS(sys/wait.h)
463 AC_CHECK_HEADERS(grp.h)
464 AC_CHECK_HEADERS(syslog.h)
465
466 # for mono/dis
467 AC_CHECK_HEADERS(wchar.h)
468 AC_CHECK_HEADERS(ieeefp.h)
469 AC_MSG_CHECKING(for isinf)
470 AC_TRY_LINK([#include <math.h>], [
471         int f = isinf (1.0);
472 ], [
473         AC_MSG_RESULT(yes)
474         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
475 ], [
476         # We'll have to use signals
477         AC_MSG_RESULT(no)
478 ])
479 # mingw
480 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
481         AC_TRY_LINK([#include <math.h>], 
482         [ _finite(0.0); ], 
483         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
484         AC_MSG_RESULT(no)))
485
486 # for Linux statfs support
487 AC_CHECK_HEADERS(linux/magic.h)
488
489 # not 64 bit clean in cross-compile
490 AC_CHECK_SIZEOF(void *, 4)
491
492 AC_CACHE_CHECK([for clang],
493         mono_cv_clang,[
494         AC_TRY_COMPILE([], [
495                 #ifdef __clang__
496                 #else
497                 #error "FAILED"
498                 #endif
499                 return 0;
500         ],
501         [mono_cv_clang=yes],
502         [mono_cv_clang=no],
503         [])
504 ])
505
506 AC_ARG_ENABLE(visibility-hidden,
507 [  --disable-visibility-hidden    disable usage of -fvisiblity=hidden],
508    disable_visibility_hidden=yes, disable_visibility_hidden=no)
509
510 WARN=''
511 if test x"$GCC" = xyes; then
512         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes'
513
514                 # We require C99 with some GNU extensions, e.g. `linux` macro
515                 CFLAGS="$CFLAGS -std=gnu99"
516
517                 # The runtime code does not respect ANSI C strict aliasing rules
518                 CFLAGS="$CFLAGS -fno-strict-aliasing"
519
520                 # We rely on signed overflow to behave
521                 CFLAGS="$CFLAGS -fwrapv"
522
523                 CFLAGS="$CFLAGS -DMONO_DLL_EXPORT"
524                 if test x"$disable_visibility_hidden" = xno; then
525                    # Don't export any symbols by default
526                    SHARED_CFLAGS="-fvisibility=hidden"
527                    CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB -fvisibility=hidden"
528                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
529                 fi
530
531                 ORIG_CFLAGS=$CFLAGS
532                 # Check for the normal version, since gcc ignores unknown -Wno options
533                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
534                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
535                 AC_TRY_COMPILE([],[
536                                 return 0;
537                 ], [
538                    AC_MSG_RESULT(yes)
539                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
540                 ], [
541                    AC_MSG_RESULT(no)
542                    CFLAGS=$ORIG_CFLAGS
543                 ])
544
545                 if test "x$mono_cv_clang" = "xyes"; then
546                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
547                    WARN="$WARN -Qunused-arguments"
548                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign -Wno-return-stack-address -Wno-constant-logical-operand"
549                 fi
550 else
551         # The Sun Forte compiler complains about inline functions that access static variables
552         # so disable all inlining.
553         case "$host" in
554         *-*-solaris*)
555                 CFLAGS="$CFLAGS -Dinline="
556                 ;;
557         esac
558 fi
559 CFLAGS="$CFLAGS -g $WARN"
560 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
561 CPPFLAGS="$CPPFLAGS -g $WARN"
562
563 # Where's the 'mcs' source tree?
564 if test -d $srcdir/mcs; then
565   mcsdir=mcs
566 else
567   mcsdir=../mcs
568 fi
569
570 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
571         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
572                 mcsdir=$with_mcs_path
573         fi
574 )
575
576 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
577
578 #
579 # A sanity check to catch cases where the package was unpacked
580 # with an ancient tar program (Solaris)
581 #
582 AC_ARG_ENABLE(solaris-tar-check,
583 [  --disable-solaris-tar-check    disable solaris tar check],
584    do_solaris_tar_check=no, do_solaris_tar_check=yes)
585
586 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
587         AC_MSG_CHECKING(integrity of package)
588         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
589         then
590                 AC_MSG_RESULT(ok)
591         else
592                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
593                 AC_MSG_ERROR([$errorm])
594         fi
595 fi
596
597 if test "x$with_mcs_path" != "x"; then
598 mcs_topdir=$(cd "$mcsdir" && pwd)
599 mcs_topdir_from_srcdir=$mcs_topdir
600 else
601 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
602 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
603 fi
604
605 # Convert mcs_topdir* paths to Windows syntax.
606 if test x$cross_compiling$host_win32 = xnoyes; then
607   mcs_topdir=$(cygpath -m $mcs_topdir)
608   case $mcs_topdir_from_srcdir in
609     /cygdrive/*)
610         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
611         ;;
612   esac
613 fi
614
615 AC_SUBST([mcs_topdir])
616 AC_SUBST([mcs_topdir_from_srcdir])
617
618 # gettext: prepare the translation directories. 
619 # we do not configure the full gettext, as we consume it dynamically from C#
620 AM_PO_SUBDIRS
621
622 if test "x$USE_NLS" = "xyes"; then
623    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
624
625    if test "x$HAVE_MSGFMT" = "xno"; then
626           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
627    fi
628 fi
629
630 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
631
632 pkg_config_path=
633 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
634         if test x$with_crosspkgdir = "x"; then
635                 if test -s $PKG_CONFIG_PATH; then
636                         pkg_config_path=$PKG_CONFIG_PATH
637                 fi
638         else
639                 pkg_config_path=$with_crosspkgdir
640                 PKG_CONFIG_PATH=$pkg_config_path
641                 export PKG_CONFIG_PATH
642         fi
643 )
644
645 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
646 if test x$werror_flag = xyes; then
647         WERROR_CFLAGS="-Werror"
648 fi
649 AC_SUBST([WERROR_CFLAGS])
650 AC_SUBST([SHARED_CFLAGS])
651
652 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
653 AC_CONFIG_SUBDIRS(eglib)
654
655 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
656 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
657   
658 AC_SUBST(GLIB_CFLAGS)
659 AC_SUBST(GLIB_LIBS)
660
661 # Enable support for fast thread-local storage
662 # Some systems have broken support, so we allow to disable it.
663 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
664
665 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
666 # This does not work on some platforms (bug #55253)
667 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
668
669 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
670 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
671 # Same as --with-shared_mono=no
672 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
673
674 if test "x$enable_static" = "xno"; then
675    with_static_mono=no
676 fi
677
678 if test "x$enable_shared" = "xno"; then
679    with_shared_mono=no
680 fi
681
682 if test "x$enable_libraries" = "xno"; then
683    with_shared_mono=no
684 fi
685
686 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
687
688 case $host in
689 *nacl* ) with_shared_mono=yes;;
690 esac
691
692 if test "x$host_win32" = "xyes"; then
693    # Boehm GC requires the runtime to be in its own dll
694    with_static_mono=no
695 fi
696
697 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
698 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
699 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
700
701 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
702 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
703         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
704         ORIG_CFLAGS=$CFLAGS
705         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
706         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
707         AC_TRY_COMPILE([], [
708                 return 0;
709         ], [
710            AC_MSG_RESULT(yes)
711            # Pass it to libgc as well
712            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
713         ], [
714            AC_MSG_RESULT(no)
715            CFLAGS=$ORIG_CFLAGS
716         ])
717 fi
718
719 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
720
721 if test x$enable_small_config = xyes; then
722         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
723         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
724 fi
725
726 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=$enableval, enable_system_aot=default)
727
728 DISABLED_FEATURES=none
729
730 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
731      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
732      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
733          security, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
734 [
735         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
736                 eval "mono_feature_disable_$feature='yes'"
737         done
738         DISABLED_FEATURES=$enable_minimal
739         disabled="Disabled:      $enable_minimal"
740 ],[])
741
742 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
743
744 if test "x$mono_feature_disable_aot" = "xyes"; then
745         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
746         enable_system_aot=no
747         AC_MSG_NOTICE([Disabled AOT compiler])
748 fi
749
750 if test "x$mono_feature_disable_profiler" = "xyes"; then
751         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
752         AC_MSG_NOTICE([Disabled support for the profiler])
753 fi
754 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
755
756 if test "x$mono_feature_disable_decimal" = "xyes"; then
757         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
758         AC_MSG_NOTICE([Disabled support for decimal])
759 fi
760
761 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
762         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
763         AC_MSG_NOTICE([Disabled support for P/Invoke])
764 fi
765
766 if test "x$mono_feature_disable_debug" = "xyes"; then
767         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
768         AC_MSG_NOTICE([Disabled support for runtime debugging])
769 fi
770
771 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
772         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
773         mono_feature_disable_reflection_emit_save=yes
774         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
775 fi
776
777 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
778         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
779         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
780 fi
781
782 if test "x$mono_feature_disable_large_code" = "xyes"; then
783         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
784         AC_MSG_NOTICE([Disabled support for large assemblies])
785 fi
786
787 if test "x$mono_feature_disable_logging" = "xyes"; then
788         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
789         AC_MSG_NOTICE([Disabled support for logging])
790 fi
791
792 if test "x$mono_feature_disable_com" = "xyes"; then
793         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
794         AC_MSG_NOTICE([Disabled COM support])
795 fi
796
797 if test "x$mono_feature_disable_ssa" = "xyes"; then
798         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
799         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
800 fi
801
802 if test "x$mono_feature_disable_generics" = "xyes"; then
803         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
804         AC_MSG_NOTICE([Disabled Generics Support])
805 fi
806
807 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
808         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
809         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
810 fi
811
812 if test "x$mono_feature_disable_portability" = "xyes"; then
813         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
814         AC_MSG_NOTICE([Disabled IO Portability layer])
815 fi
816
817 if test "x$mono_feature_disable_attach" = "xyes"; then
818         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
819         AC_MSG_NOTICE([Disabled agent attach])
820 fi
821
822 if test "x$mono_feature_disable_full_messages" = "xyes"; then
823         AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
824         AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
825 fi
826
827 if test "x$mono_feature_disable_verifier" = "xyes"; then
828         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
829         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
830 fi
831
832 if test "x$mono_feature_disable_jit" = "xyes"; then
833         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
834         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
835 fi
836
837 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
838
839 if test "x$mono_feature_disable_simd" = "xyes"; then
840         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
841         AC_MSG_NOTICE([Disabled SIMD support])
842 fi
843
844 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
845         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
846         AC_MSG_NOTICE([Disabled Soft Debugger.])
847 fi
848
849 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
850         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
851         AC_MSG_NOTICE([Disabled Performance Counters.])
852 fi
853 if test "x$mono_feature_disable_normalization" = "xyes"; then
854         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
855         AC_MSG_NOTICE([Disabled String normalization support.])
856 fi
857
858 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
859         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
860         AC_MSG_NOTICE([Disabled Assembly remapping.])
861 fi
862
863 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
864         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
865         AC_MSG_NOTICE([Disabled Shared perfcounters.])
866 fi
867
868 if test "x$mono_feature_disable_appdomains" = "xyes"; then
869         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
870         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
871 fi
872
873 if test "x$mono_feature_disable_remoting" = "xyes"; then
874         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
875         AC_MSG_NOTICE([Disabled remoting])
876 fi
877
878 if test "x$mono_feature_disable_security" = "xyes"; then
879         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
880         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
881 fi
882
883 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
884         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
885         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
886 fi
887
888 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
889         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
890         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
891 fi
892
893 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
894         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
895         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
896 fi
897
898 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
899         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
900         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
901 fi
902
903 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
904         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
905         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
906 fi
907
908 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
909 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
910
911 has_extension_module=no
912 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
913 [
914         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
915                 if test x$extension = xdefault ; then
916                         has_extension_module=yes;
917                 fi
918         done
919         if test x$enable_extension_module = xyes; then
920                 has_extension_module=yes;
921         fi
922 ], [])
923
924 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
925
926 if test x$has_extension_module != xno ; then
927         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
928         AC_MSG_NOTICE([Enabling mono extension module.])
929 fi
930
931 # Deprecated
932 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
933
934 AC_MSG_CHECKING(for visibility __attribute__)
935 AC_COMPILE_IFELSE([
936         AC_LANG_SOURCE([[
937                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
938                 int main () { doit (); return 0; }
939         ]])
940 ], [
941    have_visibility_hidden=yes
942    AC_MSG_RESULT(yes)
943 ], [
944    have_visibility_hidden=no
945    AC_MSG_RESULT(no)
946 ])
947
948 AC_MSG_CHECKING(for deprecated __attribute__)
949 AC_TRY_COMPILE([
950      int doit (void) __attribute__ ((deprecated));
951      int doit (void) { return 0; }
952 ], [
953         return 0;
954 ], [
955    have_deprecated=yes
956    AC_MSG_RESULT(yes)
957 ], [
958    have_deprecated=no
959    AC_MSG_RESULT(no)
960 ])
961
962 dnl
963 dnl Boehm GC configuration
964 dnl
965
966 AC_ARG_WITH(libgc,   [  --with-gc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=included])
967
968 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
969 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
970
971 if test "x$support_boehm" = "xyes"; then
972
973         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
974         if test x$enable_parallel_mark = xyes; then
975                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
976         fi
977
978         gc_msg=""
979         LIBGC_CPPFLAGS=
980         LIBGC_LIBS=
981         LIBGC_STATIC_LIBS=
982         libgc_dir=
983         case "x$libgc" in
984                 xincluded)
985                         if test "x$support_boehm" = "xyes"; then
986                                 libgc_dir=libgc
987                         fi
988
989                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
990                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
991                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
992
993                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
994
995                         if test x$target_win32 = xyes; then
996                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
997                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
998                         fi
999
1000                         gc_msg="Included Boehm GC with typed GC"
1001                         if test x$enable_parallel_mark = xyes; then
1002                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1003                                 gc_msg="$gc_msg and parallel mark"
1004                         else
1005                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1006                         fi
1007                         ;;
1008
1009                 xboehm|xbohem|xyes)
1010                         AC_MSG_WARN("External Boehm is no longer supported")
1011                         ;;
1012
1013                 xsgen)
1014                         AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1015                         ;;
1016
1017                 xnone)
1018                         AC_MSG_WARN("Compiling mono without GC.")
1019                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1020                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1021                         gc_msg="none"
1022                         ;;
1023                 *)
1024                         AC_MSG_ERROR([Invalid argument to --with-gc.])
1025                         ;;
1026         esac
1027
1028         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1029         if test "x$large_heap" = "xyes"; then
1030            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1031         fi
1032
1033         AC_SUBST(LIBGC_CPPFLAGS)
1034         AC_SUBST(LIBGC_LIBS)
1035         AC_SUBST(LIBGC_STATIC_LIBS)
1036         AC_SUBST(libgc_dir)
1037         AC_SUBST(BOEHM_DEFINES)
1038
1039 fi
1040
1041 dnl
1042 dnl End of Boehm GC Configuration
1043 dnl
1044
1045 dnl *************************************
1046 dnl *** Checks for zero length arrays ***
1047 dnl *************************************
1048 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1049 AC_TRY_COMPILE([
1050         struct s {
1051                 int  length;
1052                 char data [0];
1053         };
1054 ], [], [
1055         AC_MSG_RESULT(yes)
1056         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1057 ], [
1058         AC_MSG_RESULT(no)
1059         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1060 ])
1061
1062 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1063
1064 dnl ***********************************
1065 dnl *** Checks for signals
1066 dnl ***********************************
1067 AC_CHECK_HEADERS(signal.h)
1068 AC_CHECK_FUNCS(sigaction)
1069 AC_CHECK_FUNCS(kill)
1070 AC_CHECK_FUNCS(signal)
1071
1072 # signal() is declared inline in Android headers
1073 # so we need to workaround it by overriding the check.
1074 if test x$platform_android = xyes; then
1075         AC_DEFINE(HAVE_SIGNAL,1)
1076 fi
1077
1078 if test x$host_win32 = xno; then
1079
1080         dnl hires monotonic clock support
1081         AC_SEARCH_LIBS(clock_gettime, rt)
1082         AC_CHECK_FUNCS(clock_nanosleep)
1083
1084         dnl dynamic loader support
1085         AC_CHECK_FUNC(dlopen, DL_LIB="",
1086                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1087         )
1088         if test x$dl_support = xno; then
1089                 AC_MSG_WARN([No dynamic loading support available])
1090         else
1091                 LIBS="$LIBS $DL_LIB"
1092                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1093                 dnl from glib's configure.ac
1094                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1095                         mono_cv_uscore,[
1096                         AC_TRY_RUN([#include <dlfcn.h>
1097                         int mono_underscore_test (void) { return 42; }
1098                         int main() {
1099                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1100                           handle = dlopen ((void*)0, 0);
1101                           if (handle) {
1102                             f1 = dlsym (handle, "mono_underscore_test");
1103                             f2 = dlsym (handle, "_mono_underscore_test");
1104                           } return (!f2 || f1);
1105                         }],
1106                                 [mono_cv_uscore=yes],
1107                                 [mono_cv_uscore=no],
1108                         [])
1109                 ])
1110                 if test "x$mono_cv_uscore" = "xyes"; then
1111                         MONO_DL_NEED_USCORE=1
1112                 else
1113                         MONO_DL_NEED_USCORE=0
1114                 fi
1115                 AC_SUBST(MONO_DL_NEED_USCORE)
1116                 AC_CHECK_FUNC(dlerror)
1117         fi
1118
1119         dnl ******************************************************************
1120         dnl *** Checks for the IKVM JNI interface library                  ***
1121         dnl ******************************************************************
1122         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])
1123
1124         ikvm_native_dir=
1125         if test x$with_ikvm_native = xyes; then
1126                 ikvm_native_dir=ikvm-native
1127                 jdk_headers_found="IKVM Native"
1128         fi
1129
1130         AC_SUBST(ikvm_native_dir)
1131
1132         AC_CHECK_HEADERS(execinfo.h)
1133
1134         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1135
1136         AC_CHECK_FUNCS(getgrgid_r)
1137         AC_CHECK_FUNCS(getgrnam_r)
1138         AC_CHECK_FUNCS(getpwnam_r)
1139         AC_CHECK_FUNCS(getpwuid_r)
1140         AC_CHECK_FUNCS(getresuid)
1141         AC_CHECK_FUNCS(setresuid)
1142         AC_CHECK_FUNCS(kqueue)
1143         AC_CHECK_FUNCS(backtrace_symbols)
1144         AC_CHECK_FUNCS(mkstemp)
1145         AC_CHECK_FUNCS(mmap)
1146         AC_CHECK_FUNCS(madvise)
1147         AC_CHECK_FUNCS(getrusage)
1148         AC_CHECK_FUNCS(getpriority)
1149         AC_CHECK_FUNCS(setpriority)
1150         AC_CHECK_FUNCS(dl_iterate_phdr)
1151         AC_CHECK_FUNCS(dladdr)
1152         AC_CHECK_FUNCS(sysconf)
1153         AC_CHECK_FUNCS(getrlimit)
1154         AC_CHECK_FUNCS(prctl)
1155
1156         AC_CHECK_FUNCS(sched_getaffinity)
1157         AC_CHECK_FUNCS(sched_setaffinity)
1158         AC_CHECK_FUNCS(sched_getcpu)
1159
1160         dnl ****************************************************************
1161         dnl *** Check for sched_setaffinity from glibc versions before   ***
1162         dnl *** 2.3.4. The older versions of the function only take 2    ***
1163         dnl *** parameters, not 3.                                       ***
1164         dnl ***                                                          ***
1165         dnl *** Because the interface change was not made in a minor     ***
1166         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1167         dnl *** won't always indicate the interface sched_affinity has.  ***
1168         dnl ****************************************************************
1169         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1170         AC_TRY_COMPILE([#include <sched.h>], [
1171             int mask = 1; 
1172             sched_setaffinity(0, &mask);
1173                         return 0;
1174         ], [
1175                 # Yes, we have it...
1176                 AC_MSG_RESULT(yes)
1177                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1178         ], [
1179                 # We have the new, three-parameter version
1180                 AC_MSG_RESULT(no)
1181         ])
1182
1183
1184         dnl ******************************************************************
1185         dnl *** Check for large file support                               ***
1186         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1187         dnl ******************************************************************
1188         
1189         # Check that off_t can represent 2**63 - 1 correctly, working around
1190         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1191         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1192         large_offt=no
1193         AC_DEFUN([LARGE_FILES], [
1194                 large_CPPFLAGS=$CPPFLAGS
1195                 CPPFLAGS="$CPPFLAGS $1"
1196                 AC_TRY_COMPILE([
1197                         #include <sys/types.h>
1198                         #include <limits.h>
1199                 ], [
1200                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1201                         #define COMPILE_TIME_ASSERT(pred) \
1202                                 switch(0){case 0:case pred:;}
1203                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1204                 ], [
1205                         AC_MSG_RESULT(ok)
1206                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1207                         large_CPPFLAGS="$large_CPPFLAGS $1"
1208                         large_offt=yes
1209                 ], [
1210                         AC_MSG_RESULT(no)
1211                 ])
1212                 CPPFLAGS=$large_CPPFLAGS
1213         ])
1214
1215         AC_MSG_CHECKING(if off_t is 64 bits wide)
1216         LARGE_FILES("")
1217         if test $large_offt = no; then
1218                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1219                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1220         fi
1221         if test $large_offt = no; then
1222                 AC_MSG_WARN([No 64 bit file size support available])
1223         fi
1224         
1225         dnl *****************************
1226         dnl *** Checks for libsocket  ***
1227         dnl *****************************
1228         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1229
1230         case "$host" in
1231                 *-*-*freebsd*)
1232                         dnl *****************************
1233                         dnl *** Checks for libinotify ***
1234                         dnl *****************************
1235                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1236         esac
1237
1238         dnl *******************************
1239         dnl *** Checks for MSG_NOSIGNAL ***
1240         dnl *******************************
1241         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1242         AC_TRY_COMPILE([#include <sys/socket.h>], [
1243                 int f = MSG_NOSIGNAL;
1244         ], [
1245                 # Yes, we have it...
1246                 AC_MSG_RESULT(yes)
1247                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1248         ], [
1249                 # We'll have to use signals
1250                 AC_MSG_RESULT(no)
1251         ])
1252
1253         dnl *****************************
1254         dnl *** Checks for IPPROTO_IP ***
1255         dnl *****************************
1256         AC_MSG_CHECKING(for IPPROTO_IP)
1257         AC_TRY_COMPILE([#include <netinet/in.h>], [
1258                 int level = IPPROTO_IP;
1259         ], [
1260                 # Yes, we have it...
1261                 AC_MSG_RESULT(yes)
1262                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1263         ], [
1264                 # We'll have to use getprotobyname
1265                 AC_MSG_RESULT(no)
1266         ])
1267
1268         dnl *******************************
1269         dnl *** Checks for IPPROTO_IPV6 ***
1270         dnl *******************************
1271         AC_MSG_CHECKING(for IPPROTO_IPV6)
1272         AC_TRY_COMPILE([#include <netinet/in.h>], [
1273                 int level = IPPROTO_IPV6;
1274         ], [
1275                 # Yes, we have it...
1276                 AC_MSG_RESULT(yes)
1277                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1278         ], [
1279                 # We'll have to use getprotobyname
1280                 AC_MSG_RESULT(no)
1281         ])
1282
1283         dnl ******************************
1284         dnl *** Checks for IPPROTO_TCP ***
1285         dnl ******************************
1286         AC_MSG_CHECKING(for IPPROTO_TCP)
1287         AC_TRY_COMPILE([#include <netinet/in.h>], [
1288                 int level = IPPROTO_TCP;
1289         ], [
1290                 # Yes, we have it...
1291                 AC_MSG_RESULT(yes)
1292                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1293         ], [
1294                 # We'll have to use getprotobyname
1295                 AC_MSG_RESULT(no)
1296         ])
1297
1298         dnl *****************************
1299         dnl *** Checks for SOL_IP     ***
1300         dnl *****************************
1301         AC_MSG_CHECKING(for SOL_IP)
1302         AC_TRY_COMPILE([#include <netdb.h>], [
1303                 int level = SOL_IP;
1304         ], [
1305                 # Yes, we have it...
1306                 AC_MSG_RESULT(yes)
1307                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1308         ], [
1309                 # We'll have to use getprotobyname
1310                 AC_MSG_RESULT(no)
1311         ])
1312
1313         dnl *****************************
1314         dnl *** Checks for SOL_IPV6     ***
1315         dnl *****************************
1316         AC_MSG_CHECKING(for SOL_IPV6)
1317         AC_TRY_COMPILE([#include <netdb.h>], [
1318                 int level = SOL_IPV6;
1319         ], [
1320                 # Yes, we have it...
1321                 AC_MSG_RESULT(yes)
1322                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1323         ], [
1324                 # We'll have to use getprotobyname
1325                 AC_MSG_RESULT(no)
1326         ])
1327
1328         dnl *****************************
1329         dnl *** Checks for SOL_TCP    ***
1330         dnl *****************************
1331         AC_MSG_CHECKING(for SOL_TCP)
1332         AC_TRY_COMPILE([#include <netdb.h>], [
1333                 int level = SOL_TCP;
1334         ], [
1335                 # Yes, we have it...
1336                 AC_MSG_RESULT(yes)
1337                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1338         ], [
1339                 # We'll have to use getprotobyname
1340                 AC_MSG_RESULT(no)
1341         ])
1342
1343         dnl *****************************
1344         dnl *** Checks for IP_PKTINFO ***
1345         dnl *****************************
1346         AC_MSG_CHECKING(for IP_PKTINFO)
1347         AC_TRY_COMPILE([#include <linux/in.h>], [
1348                 int level = IP_PKTINFO;
1349         ], [
1350                 # Yes, we have it...
1351                 AC_MSG_RESULT(yes)
1352                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1353         ], [
1354                 AC_MSG_RESULT(no)
1355         ])
1356
1357         dnl *****************************
1358         dnl *** Checks for IPV6_PKTINFO ***
1359         dnl *****************************
1360         AC_MSG_CHECKING(for IPV6_PKTINFO)
1361         AC_TRY_COMPILE([#include <netdb.h>], [
1362                 int level = IPV6_PKTINFO;
1363         ], [
1364                 # Yes, we have it...
1365                 AC_MSG_RESULT(yes)
1366                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1367         ], [
1368                 AC_MSG_RESULT(no)
1369         ])
1370
1371         dnl **********************************
1372         dnl *** Checks for IP_DONTFRAG     ***
1373         dnl **********************************
1374         AC_MSG_CHECKING(for IP_DONTFRAG)
1375         AC_TRY_COMPILE([#include <netinet/in.h>], [
1376                 int level = IP_DONTFRAG;
1377         ], [
1378                 # Yes, we have it...
1379                 AC_MSG_RESULT(yes)
1380                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1381         ], [
1382                 AC_MSG_RESULT(no)
1383         ])
1384
1385         dnl **********************************
1386         dnl *** Checks for IP_DONTFRAGMENT ***
1387         dnl **********************************
1388         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1389         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1390                 int level = IP_DONTFRAGMENT;
1391         ], [
1392                 # Yes, we have it...
1393                 AC_MSG_RESULT(yes)
1394                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1395         ], [
1396                 AC_MSG_RESULT(no)
1397         ])
1398
1399         dnl **********************************
1400         dnl *** Checks for IP_MTU_DISCOVER ***
1401         dnl **********************************
1402         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1403         AC_TRY_COMPILE([#include <linux/in.h>], [
1404                 int level = IP_MTU_DISCOVER;
1405         ], [
1406                 # Yes, we have it...
1407                 AC_MSG_RESULT(yes)
1408                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1409         ], [
1410                 AC_MSG_RESULT(no)
1411         ])
1412
1413         dnl **********************************
1414         dnl *** Checks for  IP_PMTUDISC_DO ***
1415         dnl **********************************
1416         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1417         AC_TRY_COMPILE([#include <linux/in.h>], [
1418                 int level = IP_PMTUDISC_DO;
1419         ], [
1420                 # Yes, we have it...
1421                 AC_MSG_RESULT(yes)
1422                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1423         ], [
1424                 AC_MSG_RESULT(no)
1425         ])
1426
1427         dnl *********************************
1428         dnl *** Check for struct ip_mreqn ***
1429         dnl *********************************
1430         AC_MSG_CHECKING(for struct ip_mreqn)
1431         AC_TRY_COMPILE([#include <netinet/in.h>], [
1432                 struct ip_mreqn mreq;
1433                 mreq.imr_address.s_addr = 0;
1434         ], [
1435                 # Yes, we have it...
1436                 AC_MSG_RESULT(yes)
1437                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1438         ], [
1439                 # We'll just have to try and use struct ip_mreq
1440                 AC_MSG_RESULT(no)
1441                 AC_MSG_CHECKING(for struct ip_mreq)
1442                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1443                         struct ip_mreq mreq;
1444                         mreq.imr_interface.s_addr = 0;
1445                 ], [
1446                         # Yes, we have it...
1447                         AC_MSG_RESULT(yes)
1448                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1449                 ], [
1450                         # No multicast support
1451                         AC_MSG_RESULT(no)
1452                 ])
1453         ])
1454         
1455         dnl **********************************
1456         dnl *** Check for getaddrinfo ***
1457         dnl **********************************
1458         AC_MSG_CHECKING(for getaddrinfo)
1459                 AC_TRY_LINK([
1460                 #include <stdio.h>
1461                 #include <netdb.h>
1462         ], [
1463                 getaddrinfo(NULL,NULL,NULL,NULL);
1464         ], [
1465                 # Yes, we have it...
1466                 AC_MSG_RESULT(yes)
1467                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
1468         ], [
1469                 AC_MSG_RESULT(no)
1470         ])
1471
1472         dnl **********************************
1473         dnl *** Check for gethostbyname2_r ***
1474         dnl **********************************
1475         AC_MSG_CHECKING(for gethostbyname2_r)
1476                 AC_TRY_LINK([
1477                 #include <stdio.h>
1478                 #include <netdb.h>
1479         ], [
1480
1481                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1482         ], [
1483                 # Yes, we have it...
1484                 AC_MSG_RESULT(yes)
1485                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1486         ], [
1487                 AC_MSG_RESULT(no)
1488         ])
1489
1490         dnl **********************************
1491         dnl *** Check for gethostbyname2 ***
1492         dnl **********************************
1493         AC_MSG_CHECKING(for gethostbyname2)
1494                 AC_TRY_LINK([
1495                 #include <stdio.h>
1496                 #include <netdb.h>
1497         ], [
1498                 gethostbyname2(NULL,0);
1499         ], [
1500                 # Yes, we have it...
1501                 AC_MSG_RESULT(yes)
1502                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
1503         ], [
1504                 AC_MSG_RESULT(no)
1505         ])
1506
1507         dnl **********************************
1508         dnl *** Check for gethostbyname ***
1509         dnl **********************************
1510         AC_MSG_CHECKING(for gethostbyname)
1511                 AC_TRY_LINK([
1512                 #include <stdio.h>
1513                 #include <netdb.h>
1514         ], [
1515                 gethostbyname(NULL);
1516         ], [
1517                 # Yes, we have it...
1518                 AC_MSG_RESULT(yes)
1519                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
1520         ], [
1521                 AC_MSG_RESULT(no)
1522         ])
1523
1524         dnl **********************************
1525         dnl *** Check for getprotobyname ***
1526         dnl **********************************
1527         AC_MSG_CHECKING(for getprotobyname)
1528                 AC_TRY_LINK([
1529                 #include <stdio.h>
1530                 #include <netdb.h>
1531         ], [
1532                 getprotobyname(NULL);
1533         ], [
1534                 # Yes, we have it...
1535                 AC_MSG_RESULT(yes)
1536                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
1537         ], [
1538                 AC_MSG_RESULT(no)
1539         ])
1540
1541         dnl **********************************
1542         dnl *** Check for getnameinfo ***
1543         dnl **********************************
1544         AC_MSG_CHECKING(for getnameinfo)
1545                 AC_TRY_LINK([
1546                 #include <stdio.h>
1547                 #include <netdb.h>
1548         ], [
1549                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
1550         ], [
1551                 # Yes, we have it...
1552                 AC_MSG_RESULT(yes)
1553                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
1554         ], [
1555                 AC_MSG_RESULT(no)
1556         ])
1557
1558
1559         dnl **********************************
1560         dnl *** Check for inet_ntop ***
1561         dnl **********************************
1562         AC_MSG_CHECKING(for inet_ntop)
1563                 AC_TRY_LINK([
1564                 #include <stdio.h>
1565                 #include <arpa/inet.h>
1566         ], [
1567                 inet_ntop (0, NULL, NULL, 0);
1568         ], [
1569                 # Yes, we have it...
1570                 AC_MSG_RESULT(yes)
1571                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
1572         ], [
1573                 AC_MSG_RESULT(no)
1574         ])
1575
1576         dnl *****************************
1577         dnl *** Checks for libnsl     ***
1578         dnl *****************************
1579         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1580
1581         AC_CHECK_FUNCS(inet_pton inet_aton)
1582
1583         dnl *****************************
1584         dnl *** Checks for libxnet    ***
1585         dnl *****************************
1586         case "${host}" in
1587                 *solaris* )
1588                         AC_MSG_CHECKING(for Solaris XPG4 support)
1589                         if test -f /usr/lib/libxnet.so; then
1590                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1591                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1592                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1593                                 LIBS="$LIBS -lxnet"
1594                                 AC_MSG_RESULT(yes)
1595                         else
1596                                 AC_MSG_RESULT(no)
1597                         fi
1598
1599                         if test "$GCC" = "yes"; then
1600                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1601                         fi
1602                 ;;
1603         esac
1604
1605         dnl *****************************
1606         dnl *** Checks for libpthread ***
1607         dnl *****************************
1608 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1609 # and libpthread does not exist
1610 #
1611         case "${host}" in
1612                 *-*-*freebsd*)
1613                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1614                 ;;
1615                 *-*-*openbsd*)
1616                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1617                 ;;
1618                 *)
1619                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1620                 ;;
1621         esac
1622         AC_CHECK_HEADERS(pthread.h)
1623         AC_CHECK_HEADERS(pthread_np.h)
1624         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1625         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1626         AC_CHECK_FUNCS(pthread_kill)
1627         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1628         AC_TRY_COMPILE([ #include <pthread.h>], [
1629                 pthread_mutexattr_t attr;
1630                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1631         ], [
1632                 AC_MSG_RESULT(ok)
1633         ], [
1634                 AC_MSG_RESULT(no)
1635                 AC_ERROR(Posix system lacks support for recursive mutexes)
1636         ])
1637         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1638         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1639         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1640
1641         dnl **********************************
1642         dnl *** Check for mincore ***
1643         dnl **********************************
1644         AC_MSG_CHECKING(for mincore)
1645                 AC_TRY_LINK([
1646                 #include <stdio.h>
1647                 #include <sys/types.h>
1648                 #include <sys/mman.h>
1649         ], [
1650                 mincore(NULL, 0, NULL);
1651         ], [
1652                 # Yes, we have it...
1653                 AC_MSG_RESULT(yes)
1654                 AC_DEFINE(HAVE_MINCORE, 1, [Have mincore])
1655         ], [
1656                 AC_MSG_RESULT(no)
1657         ])
1658
1659         dnl ***********************************
1660         dnl *** Checks for working __thread ***
1661         dnl ***********************************
1662         AC_MSG_CHECKING(for working __thread)
1663         if test "x$with_tls" != "x__thread"; then
1664                 AC_MSG_RESULT(disabled)
1665         elif test "x$cross_compiling" = "xyes"; then
1666                 AC_MSG_RESULT(cross compiling, assuming yes)
1667         else
1668                 AC_TRY_RUN([
1669                         #if defined(__APPLE__) && defined(__clang__)
1670                         #error "__thread does not currently work with clang on Mac OS X"
1671                         #endif
1672                         
1673                         #include <pthread.h>
1674                         __thread int i;
1675                         static int res1, res2;
1676
1677                         void thread_main (void *arg)
1678                         {
1679                                 i = arg;
1680                                 sleep (1);
1681                                 if (arg == 1)
1682                                         res1 = (i == arg);
1683                                 else
1684                                         res2 = (i == arg);
1685                         }
1686
1687                         int main () {
1688                                 pthread_t t1, t2;
1689
1690                                 i = 5;
1691
1692                                 pthread_create (&t1, NULL, thread_main, 1);
1693                                 pthread_create (&t2, NULL, thread_main, 2);
1694
1695                                 pthread_join (t1, NULL);
1696                                 pthread_join (t2, NULL);
1697
1698                                 return !(res1 + res2 == 2);
1699                         }
1700                 ], [
1701                                 AC_MSG_RESULT(yes)
1702                 ], [
1703                                 AC_MSG_RESULT(no)
1704                                 with_tls=pthread
1705                 ])
1706         fi
1707
1708         dnl **************************************
1709         dnl *** Checks for working sigaltstack ***
1710         dnl **************************************
1711         AC_MSG_CHECKING(for working sigaltstack)
1712         if test "x$with_sigaltstack" != "xyes"; then
1713                 AC_MSG_RESULT(disabled)
1714         elif test "x$cross_compiling" = "xyes"; then
1715                 AC_MSG_RESULT(cross compiling, assuming yes)
1716         else
1717                 AC_TRY_RUN([
1718                         #include <stdio.h>
1719                         #include <stdlib.h>
1720                         #include <unistd.h>
1721                         #include <signal.h>
1722                         #include <pthread.h>
1723                         #include <sys/wait.h>
1724                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1725                         #define SA_STACK SA_ONSTACK
1726                         #endif
1727                         static void
1728                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1729                         {
1730                                 exit (0);
1731                         }
1732
1733                         volatile char*__ptr = NULL;
1734                         static void *
1735                         loop (void *ignored)
1736                         {
1737                                 *__ptr = 0;
1738                                 return NULL;
1739                         }
1740
1741                         static void
1742                         child ()
1743                         {
1744                                 struct sigaction sa;
1745                         #ifdef __APPLE__
1746                                 stack_t sas;
1747                         #else
1748                                 struct sigaltstack sas;
1749                         #endif
1750                                 pthread_t id;
1751                                 pthread_attr_t attr;
1752
1753                                 sa.sa_sigaction = sigsegv_signal_handler;
1754                                 sigemptyset (&sa.sa_mask);
1755                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1756                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1757                                         perror ("sigaction");
1758                                         return;
1759                                 }
1760
1761                                 /* x86 darwin deliver segfaults using SIGBUS */
1762                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
1763                                         perror ("sigaction");
1764                                         return;
1765                                 }
1766                                 sas.ss_sp = malloc (SIGSTKSZ);
1767                                 sas.ss_size = SIGSTKSZ;
1768                                 sas.ss_flags = 0;
1769                                 if (sigaltstack (&sas, NULL) == -1) {
1770                                         perror ("sigaltstack");
1771                                         return;
1772                                 }
1773
1774                                 pthread_attr_init (&attr);
1775                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1776                                         printf ("pthread_create\n");
1777                                         return;
1778                                 }
1779
1780                                 sleep (100);
1781                         }
1782
1783                         int
1784                         main ()
1785                         {
1786                                 pid_t son;
1787                                 int status;
1788                                 int i;
1789
1790                                 son = fork ();
1791                                 if (son == -1) {
1792                                         return 1;
1793                                 }
1794
1795                                 if (son == 0) {
1796                                         child ();
1797                                         return 0;
1798                                 }
1799
1800                                 for (i = 0; i < 300; ++i) {
1801                                         waitpid (son, &status, WNOHANG);
1802                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
1803                                                 return 0;
1804                                         usleep (10000);
1805                                 }
1806
1807                                 kill (son, SIGKILL);
1808                                 return 1;
1809                         }
1810
1811                 ], [
1812                                 AC_MSG_RESULT(yes)
1813                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
1814                 ], [
1815                                 with_sigaltstack=no
1816                                 AC_MSG_RESULT(no)
1817                 ])
1818         fi
1819
1820         dnl ********************************
1821         dnl *** Checks for semaphore lib ***
1822         dnl ********************************
1823         # 'Real Time' functions on Solaris
1824         # posix4 on Solaris 2.6
1825         # pthread (first!) on Linux
1826         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
1827
1828         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
1829         AC_CHECK_FUNCS(shm_open)
1830
1831         dnl ********************************
1832         dnl *** Checks for timezone stuff **
1833         dnl ********************************
1834         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
1835                 AC_TRY_COMPILE([
1836                         #include <time.h>
1837                         ], [
1838                         struct tm tm;
1839                         tm.tm_gmtoff = 1;
1840                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
1841         if test $ac_cv_struct_tm_gmtoff = yes; then
1842                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
1843         else
1844                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
1845                         AC_TRY_COMPILE([
1846                                 #include <time.h>
1847                         ], [
1848                                 timezone = 1;
1849                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
1850                 if test $ac_cv_var_timezone = yes; then
1851                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
1852                 else
1853                         AC_ERROR(unable to find a way to determine timezone)
1854                 fi
1855         fi
1856
1857         dnl *********************************
1858         dnl *** Checks for math functions ***
1859         dnl *********************************
1860         AC_SEARCH_LIBS(sqrtf, m)
1861         if test "x$has_broken_apple_cpp" != "xyes"; then
1862                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
1863                         AC_TRY_LINK([#include <math.h>], 
1864                         [ finite(0.0); ], 
1865                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
1866                         AC_MSG_RESULT(no)))
1867         fi
1868         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
1869                 AC_TRY_LINK([#include <math.h>], 
1870                 [ isfinite(0.0); ], 
1871                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
1872                 AC_MSG_RESULT(no)))
1873
1874         dnl ****************************************************************
1875         dnl *** Checks for working poll() (macosx defines it but doesn't ***
1876         dnl *** have it in the library (duh))                            ***
1877         dnl ****************************************************************
1878         AC_CHECK_FUNCS(poll)
1879
1880         dnl *************************
1881         dnl *** Check for signbit ***
1882         dnl *************************
1883         AC_MSG_CHECKING(for signbit)
1884         AC_TRY_LINK([#include <math.h>], [
1885                 int s = signbit(1.0);
1886         ], [
1887                 AC_MSG_RESULT(yes)
1888                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
1889         ], [
1890                 AC_MSG_RESULT(no)
1891         ]) 
1892
1893         dnl **********************************
1894         dnl *** epoll                      ***
1895         dnl **********************************
1896         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
1897                 AC_CHECK_HEADERS(sys/epoll.h)
1898                 haveepoll=no
1899                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
1900                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
1901                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
1902                 fi
1903         fi
1904
1905         havekqueue=no
1906
1907         AC_CHECK_HEADERS(sys/event.h)
1908         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
1909
1910         dnl **************************************
1911         dnl * Darwin has a race that prevents us from using reliably:
1912         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
1913         dnl * Since kqueue is mostly used for scaling large web servers, 
1914         dnl * and very few folks run Mono on large web servers on OSX, falling
1915         dnl * back 
1916         dnl **************************************
1917         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
1918                 if test "x$host_darwin" = "xno"; then
1919                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
1920                 fi
1921         fi
1922
1923         dnl ******************************
1924         dnl *** Checks for SIOCGIFCONF ***
1925         dnl ******************************
1926         AC_CHECK_HEADERS(sys/ioctl.h)
1927         AC_CHECK_HEADERS(net/if.h, [], [],
1928            [
1929            #ifdef HAVE_SYS_TYPES_H
1930            # include <sys/types.h>
1931            #endif
1932            #ifdef HAVE_SYS_SOCKET_H
1933            # include <sys/socket.h>
1934            #endif
1935            ])
1936         AC_MSG_CHECKING(for ifreq)
1937         AC_TRY_COMPILE([
1938                 #include <stdio.h>
1939                 #include <sys/ioctl.h>
1940                 #include <net/if.h>
1941                 ], [
1942                 struct ifconf ifc;
1943                 struct ifreq *ifr;
1944                 void *x;
1945                 ifc.ifc_len = 0;
1946                 ifc.ifc_buf = NULL;
1947                 x = (void *) &ifr->ifr_addr;
1948                 ],[
1949                         AC_MSG_RESULT(yes)
1950                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
1951                 ], [
1952                         AC_MSG_RESULT(no)
1953                 ])
1954         dnl **********************************
1955         dnl ***     Checks for sin_len     ***
1956         dnl **********************************
1957         AC_MSG_CHECKING(for sockaddr_in.sin_len)
1958         AC_TRY_COMPILE([
1959                 #include <netinet/in.h>
1960                 ], [
1961                 struct sockaddr_in saddr;
1962                 saddr.sin_len = sizeof (saddr);
1963                 ],[
1964                         AC_MSG_RESULT(yes)
1965                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
1966                 ], [
1967                         AC_MSG_RESULT(no)
1968                 ])      
1969         dnl **********************************
1970         dnl ***    Checks for sin6_len     ***
1971         dnl **********************************
1972         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
1973         AC_TRY_COMPILE([
1974                 #include <netinet/in.h>
1975                 ], [
1976                 struct sockaddr_in6 saddr6;
1977                 saddr6.sin6_len = sizeof (saddr6);
1978                 ],[
1979                         AC_MSG_RESULT(yes)
1980                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
1981                 ], [
1982                         AC_MSG_RESULT(no)
1983                 ])
1984         dnl **********************************
1985         dnl *** Check for getifaddrs       ***
1986         dnl **********************************
1987         AC_MSG_CHECKING(for getifaddrs)
1988                 AC_TRY_LINK([
1989                 #include <stdio.h>
1990                 #include <sys/types.h>
1991                 #include <sys/socket.h>
1992                 #include <ifaddrs.h>
1993         ], [
1994                 getifaddrs(NULL);
1995         ], [
1996                 # Yes, we have it...
1997                 AC_MSG_RESULT(yes)
1998                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
1999         ], [
2000                 AC_MSG_RESULT(no)
2001         ])
2002         dnl **********************************
2003         dnl *** Check for if_nametoindex   ***
2004         dnl **********************************
2005         AC_MSG_CHECKING(for if_nametoindex)
2006                 AC_TRY_LINK([
2007                 #include <stdio.h>
2008                 #include <sys/types.h>
2009                 #include <sys/socket.h>
2010                 #include <net/if.h>
2011         ], [
2012                 if_nametoindex(NULL);
2013         ], [
2014                 # Yes, we have it...
2015                 AC_MSG_RESULT(yes)
2016                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
2017         ], [
2018                 AC_MSG_RESULT(no)
2019         ])
2020                         
2021         dnl **********************************
2022         dnl *** Checks for MonoPosixHelper ***
2023         dnl **********************************
2024         AC_CHECK_HEADERS(checklist.h)
2025         AC_CHECK_HEADERS(pathconf.h)
2026         AC_CHECK_HEADERS(fstab.h)
2027         AC_CHECK_HEADERS(attr/xattr.h)
2028         AC_CHECK_HEADERS(sys/extattr.h)
2029         AC_CHECK_HEADERS(sys/sendfile.h)
2030         AC_CHECK_HEADERS(sys/statvfs.h)
2031         AC_CHECK_HEADERS(sys/statfs.h)
2032         AC_CHECK_HEADERS(sys/vfstab.h)
2033         AC_CHECK_HEADERS(sys/xattr.h)
2034         AC_CHECK_HEADERS(sys/mman.h)
2035         AC_CHECK_HEADERS(sys/param.h)
2036         AC_CHECK_HEADERS(sys/mount.h, [], [],
2037                 [
2038                 #ifdef HAVE_SYS_PARAM_H
2039                 # include <sys/param.h>
2040                 #endif
2041                 ])
2042         AC_CHECK_HEADERS(sys/mount.h)
2043         AC_CHECK_FUNCS(confstr)
2044         AC_CHECK_FUNCS(seekdir telldir)
2045         AC_CHECK_FUNCS(getdomainname)
2046         AC_CHECK_FUNCS(setdomainname)
2047         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
2048         AC_CHECK_FUNCS(setgroups)
2049         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
2050         AC_CHECK_FUNCS(getfsstat)
2051         AC_CHECK_FUNCS(lutimes futimes)
2052         AC_CHECK_FUNCS(mremap)
2053         AC_CHECK_FUNCS(remap_file_pages)
2054         AC_CHECK_FUNCS(posix_fadvise)
2055         AC_CHECK_FUNCS(posix_fallocate)
2056         AC_CHECK_FUNCS(posix_madvise)
2057         AC_CHECK_FUNCS(vsnprintf)
2058         AC_CHECK_FUNCS(sendfile)
2059         AC_CHECK_FUNCS(gethostid sethostid)
2060         AC_CHECK_FUNCS(sethostname)
2061         AC_CHECK_FUNCS(statfs)
2062         AC_CHECK_FUNCS(fstatfs)
2063         AC_CHECK_FUNCS(statvfs)
2064         AC_CHECK_FUNCS(fstatvfs)
2065         AC_CHECK_FUNCS(stime)
2066         AC_CHECK_FUNCS(strerror_r)
2067         AC_CHECK_FUNCS(ttyname_r)
2068         AC_CHECK_FUNCS(psignal)
2069         AC_CHECK_FUNCS(getlogin_r)
2070         AC_CHECK_FUNCS(lockf)
2071         AC_CHECK_FUNCS(swab)
2072         AC_CHECK_FUNCS(setusershell endusershell)
2073         AC_CHECK_FUNCS(futimens utimensat)
2074         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2075         AC_CHECK_FUNCS(readv writev preadv pwritev)
2076         AC_CHECK_FUNCS(setpgid)
2077         AC_CHECK_FUNCS(system)
2078         AC_CHECK_FUNCS(fork execv execve)
2079         AC_CHECK_FUNCS(accept4)
2080         AC_CHECK_SIZEOF(size_t)
2081         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2082                 [#include <sys/types.h>
2083                  #include <sys/stat.h>
2084                  #include <unistd.h>])
2085         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2086                 [#include <sys/types.h>
2087                  #include <sys/stat.h>
2088                  #include <unistd.h>])
2089         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2090                 [#include <sys/time.h>])
2091         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
2092                 [#include <sys/socket.h>])
2093         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2094                 [#include <unistd.h>
2095                  #include <fcntl.h>])
2096         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2097                 [#include <sys/uio.h>])
2098         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
2099                 [#include <sys/socket.h>])
2100         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2101                 [#include <sys/poll.h>])
2102         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
2103                 [#include <sys/socket.h>])
2104         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
2105                 [#include <sys/socket.h>])
2106         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
2107                 [#include <netinet/in.h>])
2108         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
2109                 [#include <netinet/in.h>])
2110         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
2111                 [#include <sys/un.h>])
2112         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2113                 [#include <sys/types.h>
2114                  #include <sys/stat.h>
2115                  #include <unistd.h>])
2116         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2117                 [#include <time.h>])
2118         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2119                 [#include <sys/time.h>
2120                  #include <sys/types.h>
2121                  #include <utime.h>])
2122         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2123                 [#include <sys/time.h>])
2124         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2125                 [#include <sys/types.h>
2126                  #include <utime.h>])
2127         AC_CHECK_MEMBERS(
2128                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2129                 [#include <sys/types.h>
2130                  #include <dirent.h>])
2131         AC_CHECK_MEMBERS(
2132                 [struct passwd.pw_gecos],,, 
2133                 [#include <sys/types.h>
2134                  #include <pwd.h>])
2135         AC_CHECK_MEMBERS(
2136                 [struct statfs.f_flags],,, 
2137                 [#include <sys/types.h>
2138                  #include <sys/vfs.h>])
2139         AC_CHECK_MEMBERS(
2140                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2141                 [#include <sys/types.h>
2142                  #include <sys/stat.h>
2143                  #include <unistd.h>])
2144
2145         dnl Favour xattr through glibc, but use libattr if we have to
2146         AC_CHECK_FUNC(lsetxattr, ,
2147                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2148         )
2149         AC_SUBST(XATTR_LIB)
2150
2151         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2152         AC_CHECK_MEMBERS(
2153                 [struct kinfo_proc.kp_proc],,, 
2154                 [#include <sys/types.h>
2155                  #include <sys/param.h>
2156                  #include <sys/sysctl.h>
2157                  #include <sys/proc.h>
2158                  ])
2159
2160         dnl *********************************
2161         dnl *** Checks for Windows compilation ***
2162         dnl *********************************
2163         AC_CHECK_HEADERS(sys/time.h)
2164         AC_CHECK_HEADERS(sys/param.h)
2165         AC_CHECK_HEADERS(dirent.h)
2166
2167         dnl ******************************************
2168         dnl *** Checks for OSX and iOS compilation ***
2169         dnl ******************************************
2170         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2171
2172         dnl *********************************
2173         dnl *** Check for Console 2.0 I/O ***
2174         dnl *********************************
2175         AC_CHECK_HEADERS([curses.h])
2176         AC_CHECK_HEADERS([term.h], [], [],
2177         [#if HAVE_CURSES_H
2178          #include <curses.h>
2179          #endif
2180         ])
2181         AC_CHECK_HEADERS([termios.h])
2182 else
2183         dnl *********************************
2184         dnl *** Checks for Windows compilation ***
2185         dnl *********************************
2186         AC_CHECK_HEADERS(winternl.h)
2187
2188         jdk_headers_found=no
2189         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2190         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2191         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2192         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2193         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2194         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2195         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2196
2197         dnl *********************************
2198         dnl *** Check for struct ip_mreqn ***
2199         dnl *********************************
2200         AC_MSG_CHECKING(for struct ip_mreqn)
2201         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2202                 struct ip_mreqn mreq;
2203                 mreq.imr_address.s_addr = 0;
2204         ], [
2205                 # Yes, we have it...
2206                 AC_MSG_RESULT(yes)
2207                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2208         ], [
2209                 # We'll just have to try and use struct ip_mreq
2210                 AC_MSG_RESULT(no)
2211                 AC_MSG_CHECKING(for struct ip_mreq)
2212                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2213                         struct ip_mreq mreq;
2214                         mreq.imr_interface.s_addr = 0;
2215                 ], [
2216                         # Yes, we have it...
2217                         AC_MSG_RESULT(yes)
2218                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2219                 ], [
2220                         # No multicast support
2221                         AC_MSG_RESULT(no)
2222                 ])
2223         ])
2224
2225         dnl **********************************
2226         dnl *** Check for getaddrinfo ***
2227         dnl **********************************
2228         AC_MSG_CHECKING(for getaddrinfo)
2229                 AC_TRY_LINK([
2230                 #include <stdio.h>
2231                 #include <winsock2.h>
2232                 #include <ws2tcpip.h>
2233         ], [
2234                 getaddrinfo(NULL,NULL,NULL,NULL);
2235         ], [
2236                 # Yes, we have it...
2237                 AC_MSG_RESULT(yes)
2238                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2239         ], [
2240                 AC_MSG_RESULT(no)
2241         ])
2242
2243         dnl **********************************
2244         dnl *** Check for gethostbyname ***
2245         dnl **********************************
2246         AC_MSG_CHECKING(for gethostbyname)
2247                 AC_TRY_LINK([
2248                 #include <stdio.h>
2249                 #include <winsock2.h>
2250                 #include <ws2tcpip.h>
2251         ], [
2252                 gethostbyname(NULL);
2253         ], [
2254                 # Yes, we have it...
2255                 AC_MSG_RESULT(yes)
2256                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2257         ], [
2258                 AC_MSG_RESULT(no)
2259         ])
2260
2261         dnl **********************************
2262         dnl *** Check for getprotobyname ***
2263         dnl **********************************
2264         AC_MSG_CHECKING(for getprotobyname)
2265                 AC_TRY_LINK([
2266                 #include <stdio.h>
2267                 #include <winsock2.h>
2268                 #include <ws2tcpip.h>
2269         ], [
2270                 getprotobyname(NULL);
2271         ], [
2272                 # Yes, we have it...
2273                 AC_MSG_RESULT(yes)
2274                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2275         ], [
2276                 AC_MSG_RESULT(no)
2277         ])
2278
2279         dnl **********************************
2280         dnl *** Check for getnameinfo ***
2281         dnl **********************************
2282         AC_MSG_CHECKING(for getnameinfo)
2283                 AC_TRY_LINK([
2284                 #include <stdio.h>
2285                 #include <winsock2.h>
2286                 #include <ws2tcpip.h>
2287         ], [
2288                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2289         ], [
2290                 # Yes, we have it...
2291                 AC_MSG_RESULT(yes)
2292                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2293         ], [
2294                 AC_MSG_RESULT(no)
2295         ])
2296
2297         dnl **********************************
2298         dnl *** Check for inet_ntop ***
2299         dnl **********************************
2300         AC_MSG_CHECKING(for inet_ntop)
2301                 AC_TRY_LINK([
2302                 #include <stdio.h>
2303                 #include <winsock2.h>
2304                 #include <ws2tcpip.h>
2305         ], [
2306                 inet_ntop (0, NULL, NULL, 0);
2307         ], [
2308                 # Yes, we have it...
2309                 AC_MSG_RESULT(yes)
2310                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2311         ], [
2312                 AC_MSG_RESULT(no)
2313         ])
2314
2315         dnl **********************************
2316         dnl *** Check for inet_pton ***
2317         dnl **********************************
2318         AC_MSG_CHECKING(for inet_pton)
2319                 AC_TRY_LINK([
2320                 #include <stdio.h>
2321                 #include <winsock2.h>
2322                 #include <ws2tcpip.h>
2323         ], [
2324                 #ifndef inet_pton
2325                 (void) inet_pton;
2326                 #endif
2327                 inet_pton (0, NULL, NULL);
2328         ], [
2329                 # Yes, we have it...
2330                 AC_MSG_RESULT(yes)
2331                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
2332         ], [
2333                 AC_MSG_RESULT(no)
2334         ])
2335
2336         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2337         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2338         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2339         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2340         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2341         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2342         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2343 fi
2344
2345 dnl socklen_t check
2346 AC_MSG_CHECKING(for socklen_t)
2347 AC_TRY_COMPILE([
2348 #include <sys/types.h>
2349 #include <sys/socket.h>
2350 ],[
2351   socklen_t foo;
2352 ],[
2353 ac_cv_c_socklen_t=yes
2354         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2355         AC_MSG_RESULT(yes)
2356 ],[
2357         AC_MSG_RESULT(no)
2358 ])
2359
2360 AC_MSG_CHECKING(for array element initializer support)
2361 AC_TRY_COMPILE([#include <sys/socket.h>], [
2362         const int array[] = {[1] = 2,};
2363 ], [
2364         # Yes, we have it...
2365         AC_MSG_RESULT(yes)
2366         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2367 ], [
2368         # We'll have to use signals
2369         AC_MSG_RESULT(no)
2370 ])
2371
2372 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2373         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2374         AC_TRY_LINK([#include <math.h>], 
2375         [ static void *p = &trunc; ],
2376         [
2377                 AC_DEFINE(HAVE_TRUNC) 
2378                 AC_MSG_RESULT(yes)
2379                 ac_cv_trunc=yes
2380         ],
2381         AC_MSG_RESULT(no)))
2382
2383 if test "x$ac_cv_truncl" != "xyes"; then
2384    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2385 fi
2386
2387 AC_CHECK_FUNCS(execvp)
2388
2389 dnl ****************************
2390 dnl *** Look for /dev/random ***
2391 dnl ****************************
2392
2393 AC_MSG_CHECKING([if usage of random device is requested])
2394 AC_ARG_ENABLE(dev-random,
2395 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2396 try_dev_random=$enableval, try_dev_random=yes)
2397
2398 AC_MSG_RESULT($try_dev_random)
2399
2400 case "{$build}" in
2401     *-openbsd*)
2402     NAME_DEV_RANDOM="/dev/srandom"
2403     ;;
2404
2405 dnl Win32 does not have /dev/random, they have their own method...
2406
2407     *-mingw*|*-*-cygwin*)
2408     ac_cv_have_dev_random=no
2409     ;;
2410
2411 dnl Everywhere else, it's /dev/random
2412
2413     *)
2414     NAME_DEV_RANDOM="/dev/random"
2415     ;;
2416 esac
2417
2418 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2419
2420 dnl Now check if the device actually exists
2421
2422 if test "x$try_dev_random" = "xyes"; then
2423     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2424     [if test -r "$NAME_DEV_RANDOM" ; then
2425         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2426     if test "x$ac_cv_have_dev_random" = "xyes"; then
2427         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2428     fi
2429 else
2430     AC_MSG_CHECKING(for random device)
2431     ac_cv_have_dev_random=no
2432     AC_MSG_RESULT(has been disabled)
2433 fi
2434
2435 if test "x$host_win32" = "xyes"; then
2436     AC_DEFINE(HAVE_CRYPT_RNG)
2437 fi
2438
2439 if test "x$ac_cv_have_dev_random" = "xno" \
2440     && test "x$host_win32" = "xno"; then
2441     AC_MSG_WARN([[
2442 ***
2443 *** A system-provided entropy source was not found on this system.
2444 *** Because of this, the System.Security.Cryptography random number generator
2445 *** will throw a NotImplemented exception.
2446 ***
2447 *** If you are seeing this message, and you know your system DOES have an
2448 *** entropy collection in place, please contact <crichton@gimp.org> and
2449 *** provide information about the system and how to access the random device.
2450 ***
2451 *** Otherwise you can install either egd or prngd and set the environment
2452 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2453 ***]])
2454 fi
2455
2456 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2457
2458 AC_ARG_ENABLE(perf-events, [  --enable-perf-events Enable using `perf` for profiling on Linux], test_perf_events=$enableval, test_perf_events=no)
2459 if test "x$test_perf_events" = "xyes"; then
2460         AC_DEFINE(ENABLE_PERF_EVENTS, 1, [Enable using `perf` for profiling on Linux])
2461         AC_SUBST(ENABLE_PERF_EVENTS)
2462 fi
2463
2464 AC_MSG_CHECKING([if big-arrays are to be enabled])
2465 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2466 if test "x$enable_big_arrays" = "xyes" ; then
2467     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2468         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2469     else
2470         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2471     fi
2472 fi
2473 AC_MSG_RESULT($enable_big_arrays)
2474
2475 dnl **************
2476 dnl *** DTRACE ***
2477 dnl **************
2478
2479 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2480
2481 if test "x$enable_dtrace" = "xyes"; then
2482    if test "x$has_dtrace" = "xno"; then
2483           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2484    fi
2485    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2486    if test "x$DTRACE" = "xno"; then
2487           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2488           enable_dtrace=no
2489    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2490           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2491           enable_dtrace=no
2492    fi
2493 fi
2494
2495 dtrace_g=no
2496 if test "x$enable_dtrace" = "xyes"; then
2497         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2498         DTRACEFLAGS=
2499         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2500                 case "$host" in
2501                         powerpc-*-darwin*)
2502                         DTRACEFLAGS="-arch ppc64"
2503                         ;;
2504                         i*86-*-darwin*)
2505                         DTRACEFLAGS="-arch x86_64"
2506                         ;;
2507                         *)
2508                         DTRACEFLAGS=-64
2509                         ;;
2510                 esac
2511         else
2512                 case "$host" in
2513                         powerpc-*-darwin*)
2514                         DTRACEFLAGS="-arch ppc"
2515                         ;;
2516                         i*86-*-darwin*)
2517                         DTRACEFLAGS="-arch i386"
2518                         ;;
2519                         *)
2520                         DTRACEFLAGS=-32
2521                         ;;
2522                 esac
2523         fi
2524         AC_SUBST(DTRACEFLAGS)
2525         case "$host" in
2526                 *-*-solaris*)
2527                 dtrace_g=yes
2528                 ;;
2529         esac
2530         AC_CHECK_HEADERS([sys/sdt.h])
2531 fi
2532 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2533 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2534
2535 dnl **************
2536 dnl ***  NaCl  ***
2537 dnl **************
2538
2539 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2540 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2541
2542 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2543
2544 dnl
2545 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2546 dnl
2547 nacl_self_host=""
2548 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2549    nacl_self_host="nacl_self_host"
2550 fi
2551 AC_SUBST(nacl_self_host)
2552
2553 if test "x$enable_nacl_codegen" = "xyes"; then
2554    MONO_NACL_ALIGN_MASK_OFF=1
2555    AC_DEFINE(TARGET_NACL, 1, [...])
2556    AC_DEFINE(__native_client_codegen__, 1, [...])
2557 fi
2558 if test "x$enable_nacl_gc" = "xyes"; then
2559    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2560       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2561    else
2562       # Not yet implemented
2563       INSTRUMENT_CFLAG=""
2564    fi
2565    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2566 fi
2567 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2568
2569 dnl **************************
2570 dnl *** AOT cross offsets  ***
2571 dnl **************************
2572
2573 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
2574     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
2575
2576 dnl **************
2577 dnl ***  LLVM  ***
2578 dnl **************
2579
2580 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=no)
2581 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2582 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2583 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
2584
2585 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2586
2587 if test "x$enable_llvm" = "xyes"; then
2588    if test "x$with_llvm" != "x"; then
2589           LLVM_CONFIG=$with_llvm/bin/llvm-config
2590           if test x$host_win32 = xyes; then
2591                 LLVM_CONFIG=$LLVM_CONFIG.exe
2592           fi
2593           if test ! -x $LLVM_CONFIG; then
2594                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2595       fi
2596    else
2597       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2598       if test "x$LLVM_CONFIG" = "xno"; then
2599              AC_MSG_ERROR([llvm-config not found.])
2600       fi
2601    fi
2602
2603    llvm_codegen="x86codegen"
2604    case "$target" in
2605    arm*)
2606                 llvm_codegen="armcodegen"
2607                 ;;
2608    esac
2609
2610    if test "x$host_win32" = "xno"; then
2611
2612    # Should be something like '2.6' or '2.7svn'
2613    llvm_version=`$LLVM_CONFIG --version`
2614    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2615    AC_MSG_CHECKING(LLVM version)
2616    AC_MSG_RESULT($llvm_version $llvm_api_version)
2617    if echo $llvm_version | grep -q 'mono'; then
2618           if test "x$enable_llvm_version_check" = "xyes"; then
2619                  if test "$llvm_version" != "$expected_llvm_version"; then
2620                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2621                  fi
2622           fi
2623    else
2624           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.])
2625    fi
2626
2627    # The output of --cflags seems to include optimizations flags too
2628    if test $llvm_api_version -gt 100; then
2629           # The --cflags argument includes all kinds of warnings -pendantic etc.
2630           LLVM_CFLAGS="-I$with_llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2631           LLVM_CXXFLAGS="-I$with_llvm/include -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2632    else
2633           LLVM_CFLAGS=`$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'`
2634       LLVM_CXXFLAGS=`$LLVM_CONFIG --cxxflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2635    fi
2636    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2637    # from LLVM classes.
2638    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -fno-rtti -fexceptions"
2639    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2640    # This might include empty lines
2641    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2642    llvm_jit_supported=yes
2643    llvm_jit_libs="jit mcjit $llvm_codegen"
2644    if test $llvm_api_version -gt 100; then
2645           # Based on llvm 3.9, only aot is currently supported
2646       llvm_jit_libs="orcjit $llvm_codegen"
2647    elif test "x$host" != "x$target"; then
2648       # No need for jit libs
2649           llvm_jit_supported=no
2650       llvm_jit_libs=""
2651    fi
2652    LLVM_LIBS=`$LLVM_CONFIG --libs analysis core bitwriter $llvm_jit_libs`
2653    if test "x$LLVM_LIBS" = "x"; then
2654           echo "$LLVM_CONFIG --libs failed."
2655           exit 1
2656    fi
2657    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS"
2658    # The c++ standard library used by llvm doesn't show up in $LLVM_SYSTEM_LIBS so add it manually
2659    if echo $LLVM_CXXFLAGS | grep -q -- '-stdlib=libc++'; then
2660       LLVM_LIBS="$LLVM_LIBS -lc++"
2661    else
2662       LLVM_LIBS="$LLVM_LIBS -lstdc++"
2663    fi
2664
2665    expected_llvm_version="3.4svn-mono-mono/e656cac"
2666
2667    else
2668        LLVM_CFLAGS="-I$with_llvm/include -DNDEBUG -D__NO_CTYPE_INLINE -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2669        LLVM_CXXFLAGS="$LLVM_CFLAGS -std=gnu++11 -fvisibility-inlines-hidden -fno-rtti -Woverloaded-virtual -Wcast-qual"
2670        LLVM_LDFLAGS="-L$with_llvm/lib"
2671        LLVM_SYSTEM_LIBS="-lshell32 -lpsapi -limagehlp -ldbghelp -lm"
2672        LLVM_LIBS="-lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter \
2673          -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo \
2674          -lLLVMARMAsmPrinter -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler \
2675          -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc \
2676          -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT \
2677          -lLLVMAnalysis -lLLVMTarget \
2678          -lLLVMIRReader -lLLVMAsmParser -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation \
2679          -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils \
2680          -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld \
2681          -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore \
2682          -lLLVMSupport -lstdc++"
2683        LLVM_LIBS="$LLVM_LIBS $LLVM_SYSTEM_LIBS"
2684
2685        llvm_config_path=$with_llvm/include/llvm/Config/llvm-config.h
2686        llvm_api_version=`awk '/MONO_API_VERSION/ { print $3 }' $llvm_config_path`
2687    fi  
2688
2689    if test "x$llvm_api_version" = "x"; then
2690           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2691           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2692    else
2693           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2694           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2695    fi   
2696
2697    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2698
2699    AC_SUBST(LLVM_CFLAGS)
2700    AC_SUBST(LLVM_CXXFLAGS)
2701    AC_SUBST(LLVM_LIBS)
2702    AC_SUBST(LLVM_LDFLAGS)
2703    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2704 fi
2705
2706 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2707 if test "x$enable_loadedllvm" = "xyes"; then
2708    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2709 fi
2710 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2711
2712 if test "x$enable_llvm" = "xyes"; then
2713    enable_llvm_runtime=yes
2714 fi
2715 if test "x$enable_llvm_runtime" = "xyes"; then
2716    AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
2717 fi
2718 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes])
2719
2720 TARGET="unknown"
2721 ACCESS_UNALIGNED="yes"
2722
2723 LIBC="libc.so.6"
2724 INTL="libc.so.6"
2725 SQLITE="libsqlite.so.0"
2726 SQLITE3="libsqlite3.so.0"
2727 X11="libX11.so"
2728 GDKX11="libgdk-x11-2.0.so.0"
2729 GTKX11="libgtk-x11-2.0.so.0"
2730 XINERAMA="libXinerama.so.1"
2731
2732 sizeof_register="SIZEOF_VOID_P"
2733
2734 jit_wanted=true
2735 boehm_supported=true
2736 case "$host" in
2737         mips*)
2738                 TARGET=MIPS;
2739                 arch_target=mips;
2740                 with_tls=pthread;
2741                 ACCESS_UNALIGNED="no"
2742
2743                 AC_MSG_CHECKING(for mips n32)
2744                 AC_TRY_COMPILE([],[
2745                 #if _MIPS_SIM != _ABIN32
2746                 #error Not mips n32
2747                 #endif
2748                 return 0;
2749                 ],[
2750                 AC_MSG_RESULT(yes)
2751                 sizeof_register=8
2752                 ],[
2753                 AC_MSG_RESULT(no)
2754                 ])
2755                 ;;
2756         i*86-*-*)
2757                 TARGET=X86;
2758                 arch_target=x86;
2759                 case $host_os in
2760                   solaris*)
2761                         LIBC="libc.so"
2762                         INTL="libintl.so"
2763                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2764                                 TARGET=AMD64
2765                                 arch_target=amd64
2766                         fi
2767
2768                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
2769                         # int astruct __attribute__ ((visibility ("hidden")));
2770                         # void foo ()
2771                         # {
2772                         #       void *p = &astruct;
2773                         # }
2774                         # gcc -fPIC --shared -o libfoo.so foo.c
2775                         # yields:
2776                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
2777                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
2778                         have_visibility_hidden=no
2779                         ;;
2780                   mingw*|cygwin*)
2781                         have_visibility_hidden=no                 
2782                         ;;
2783                   haiku*)
2784                         LIBC=libroot.so
2785                         ;;
2786                   linux*)
2787                         AOT_SUPPORTED="yes"
2788                         ;;
2789                   darwin*)
2790                         AOT_SUPPORTED="yes"
2791                         ;;
2792                   openbsd*|freebsd*|kfreebsd-gnu*)
2793                         ;;
2794                 esac
2795                 ;;
2796         x86_64-*-* | amd64-*-*)
2797                 TARGET=AMD64;
2798                 arch_target=amd64;
2799                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
2800                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2801                         sizeof_register=8
2802                 fi
2803                 case $host_os in
2804                   linux*)
2805                         AOT_SUPPORTED="yes"
2806                         ;;
2807                   darwin*)
2808                         AOT_SUPPORTED="yes"
2809                         ;;
2810                   openbsd*|freebsd*|kfreebsd-gnu*)
2811                         ;;
2812                   mingw*)
2813                         ;;
2814                 esac
2815                 case "$host" in
2816                         x86_64-*-nacl*)
2817                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2818                                 sizeof_register=8
2819                                 ;;
2820                 esac
2821                 ;;
2822         ia64-*-*)
2823                 TARGET=IA64
2824                 arch_target=ia64
2825                 ACCESS_UNALIGNED="no"
2826                 LIBC="libc.so.6.1"
2827                 INTL="libc.so.6.1"
2828                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
2829                 libmono_ldflags="-lunwind"
2830                 ;;
2831         sparc*-*-*)
2832                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2833                    TARGET=SPARC64
2834                 else
2835                         TARGET=SPARC
2836                 fi
2837                 arch_target=sparc;
2838                 ACCESS_UNALIGNED="no"
2839                 case $host_os in
2840                   linux*) ;;
2841                   *)
2842                         LIBC="libc.so"
2843                         INTL="libintl.so"
2844                 esac
2845                 if test x"$GCC" = xyes; then
2846                         # We don't support v8 cpus
2847                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
2848                 fi
2849                 if test x"$AR" = xfalse; then
2850                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
2851                 fi
2852                 ;;
2853         *-mingw*|*-*-cygwin*)
2854                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
2855                 have_visibility_hidden=no
2856                 INTL="intl"
2857                 ;;
2858         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
2859         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
2860                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2861                         TARGET=POWERPC64;
2862                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
2863                         CFLAGS="$CFLAGS -mminimal-toc"
2864                 else
2865                         TARGET=POWERPC;
2866                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
2867                 fi
2868                 arch_target=ppc;
2869                 case $host_os in
2870                   linux*|darwin*)
2871                         ;;
2872                 esac
2873                 ;;
2874         armv7k-*-darwin*)
2875                 TARGET=ARM;
2876                 TARGET_SYS=WATCHOS
2877                 arch_target=arm;
2878                 arm_fpu=VFP_HARD
2879                 ACCESS_UNALIGNED="no"
2880                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2881                 ;;
2882
2883         arm*-darwin*)
2884                 TARGET=ARM;
2885                 arch_target=arm;
2886                 ACCESS_UNALIGNED="no"
2887                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2888                 ;;
2889         arm*-linux*)
2890                 TARGET=ARM;
2891                 arch_target=arm;
2892                 ACCESS_UNALIGNED="no"
2893                 AOT_SUPPORTED="yes"
2894                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2895                 ;;
2896         arm*-netbsd*-eabi*)
2897                 TARGET=ARM;
2898                 arch_target=arm;
2899                 ACCESS_UNALIGNED="no"
2900                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2901                 ;;
2902 # TODO: make proper support for NaCl host.
2903 #        arm*-*nacl)
2904 #               TARGET=ARM;
2905 #               arch_target=arm;
2906 #               ACCESS_UNALIGNED="no"
2907 #               AOT_SUPPORTED="no"
2908 #               ;;
2909         aarch64-*)
2910                 # https://lkml.org/lkml/2012/7/15/133
2911                 TARGET=ARM64
2912                 arch_target=arm64
2913                 boehm_supported=false
2914                 AOT_SUPPORTED="yes"
2915                 ;;
2916         s390x-*-linux*)
2917                 TARGET=S390X;
2918                 arch_target=s390x;
2919                 ACCESS_UNALIGNED="yes"
2920                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
2921                 ;;
2922 esac
2923
2924 HOST=$TARGET
2925
2926 if test "x$host" != "x$target"; then
2927    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
2928    enable_mcs_build=no
2929    case "$target" in
2930    arm*-darwin*)
2931                 TARGET=ARM;
2932                 arch_target=arm;
2933                 ACCESS_UNALIGNED="no"
2934                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
2935                 # Can't use tls, since it depends on the runtime detection of tls offsets
2936                 # in mono-compiler.h
2937                 with_tls=pthread
2938                 case "$target" in
2939                 armv7k-*)
2940                         arm_fpu=VFP_HARD
2941                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
2942                         ;;
2943                 esac            
2944                 ;;
2945    powerpc64-ps3-linux-gnu)
2946                 TARGET=POWERPC64
2947                 arch_target=powerpc64
2948                 AC_DEFINE(TARGET_PS3, 1, [...])
2949                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2950                 # uses this define
2951                 AC_DEFINE(__mono_ppc64__, 1, [...])
2952                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2953                 sizeof_register=8
2954                 target_byte_order=G_BIG_ENDIAN
2955                 ;;
2956    powerpc64-xbox360-linux-gnu)
2957                 TARGET=POWERPC64
2958                 arch_target=powerpc64
2959                 AC_DEFINE(TARGET_XBOX360, 1, [...])
2960                 # It would be better to just use TARGET_POWERPC64, but lots of code already
2961                 # uses this define
2962                 sizeof_register=8
2963                 target_byte_order=G_BIG_ENDIAN
2964                 ;;
2965    x86_64-*-nacl)
2966                 TARGET=AMD64
2967                 arch_target=amd64
2968                 AC_DEFINE(TARGET_AMD64, 1, [...])
2969                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2970                 sizeof_register=8
2971                 ;;
2972 # TODO: make proper support for NaCl target.
2973 #   arm*-*nacl)
2974 #               TARGET=ARM
2975 #               arch_target=arm
2976 #               AC_DEFINE(TARGET_ARM, 1, [...])
2977 #               ACCESS_UNALIGNED="no"
2978 #               sizeof_register=4
2979 #               CPPFLAGS="$CPPFLAGS \
2980 #                    -D__ARM_EABI__ \
2981 #                    -D__arm__ \
2982 #                    -D__portable_native_client__ \
2983 #                    -Dtimezone=_timezone \
2984 #                    -DDISABLE_SOCKETS \
2985 #                    -DDISABLE_ATTACH \
2986 #                    -DUSE_NEWLIB"
2987                 # Can't use tls, since it depends on the runtime detection of tls offsets
2988                 # in mono-compiler.h
2989 #               with_tls=pthread
2990 #               ;;
2991    i686-*-nacl)
2992                 TARGET=X86
2993                 arch_target=x86
2994                 AC_DEFINE(TARGET_X86, 1, [...])
2995                 sizeof_register=4
2996                 ;;
2997    arm*-linux-*)
2998                 TARGET=ARM;
2999                 arch_target=arm;
3000                 AC_DEFINE(TARGET_ARM, 1, [...])
3001                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3002                 ACCESS_UNALIGNED="no"
3003                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3004                 # Can't use tls, since it depends on the runtime detection of tls offsets
3005                 # in mono-compiler.h
3006                 with_tls=pthread
3007                 target_mach=no
3008                 case "$target" in
3009                 armv7l-unknown-linux-gnueabi*)
3010                         # TEGRA
3011                         CPPFLAGS="$CPPFLAGS"
3012                         ;;
3013                 armv5-*-linux-androideabi*)
3014                         CPPFLAGS="$CPPFLAGS"
3015                         ;;
3016                 esac
3017                 ;;
3018    arm*-netbsd*-eabi*)
3019                 TARGET=ARM;
3020                 arch_target=arm;
3021                 AC_DEFINE(TARGET_ARM, 1, [...])
3022                 ACCESS_UNALIGNED="no"
3023                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3024                 # Can't use tls, since it depends on the runtime detection of tls offsets
3025                 # in mono-compiler.h
3026                 with_tls=pthread
3027                 target_mach=no
3028                 ;;
3029    i686*-linux-*)
3030                 TARGET=X86;
3031                 arch_target=x86;
3032                 AC_DEFINE(TARGET_X86, 1, [...])
3033                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3034                 CPPFLAGS="$CPPFLAGS"
3035                 # Can't use tls, since it depends on the runtime detection of tls offsets
3036                 # in mono-compiler.h            
3037                 with_tls=pthread
3038                 target_mach=no
3039                 ;;
3040    x86_64*-linux-*)
3041                 TARGET=AMD64;
3042                 arch_target=amd64;
3043                 AC_DEFINE(TARGET_AMD64, 1, [...])
3044                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3045                 CPPFLAGS="$CPPFLAGS"
3046                 # Can't use tls, since it depends on the runtime detection of tls offsets
3047                 # in mono-compiler.h
3048                 with_tls=pthread
3049                 target_mach=no
3050                 ;;
3051    x86_64-ps4-freebsd)
3052                 TARGET=AMD64;
3053                 arch_target=amd64;
3054                 AC_DEFINE(TARGET_AMD64, 1, [...])
3055                 AC_DEFINE(TARGET_PS4, 1, [...])
3056                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
3057                 CPPFLAGS="$CPPFLAGS"
3058                 # Can't use tls, since it depends on the runtime detection of tls offsets
3059                 # in mono-compiler.h
3060                 with_tls=pthread
3061                 target_mach=no
3062                 target_win32=no
3063                 ;;
3064    aarch64*-linux-*)
3065                 TARGET=ARM64;
3066                 arch_target=arm64;
3067                 AC_DEFINE(TARGET_ARM64, 1, [...])
3068                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3069                 CPPFLAGS="$CPPFLAGS"
3070                 # Can't use tls, since it depends on the runtime detection of tls offsets
3071                 # in mono-compiler.h
3072                 with_tls=pthread
3073                 target_mach=no
3074                 ;;
3075         aarch64-*)
3076                 TARGET=ARM64
3077                 ;;
3078         *)
3079                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
3080         esac
3081 fi
3082
3083 case "$TARGET" in
3084 X86)
3085         AC_DEFINE(TARGET_X86, 1, [...])
3086         ;;
3087 AMD64)
3088         AC_DEFINE(TARGET_AMD64, 1, [...])
3089         ;;
3090 ARM)
3091         AC_DEFINE(TARGET_ARM, 1, [...])
3092         ;;
3093 ARM64)
3094         AC_DEFINE(TARGET_ARM64, 1, [...])
3095         ;;
3096 POWERPC)
3097         AC_DEFINE(TARGET_POWERPC, 1, [...])
3098         ;;
3099 POWERPC64)
3100         AC_DEFINE(TARGET_POWERPC, 1, [...])
3101         AC_DEFINE(TARGET_POWERPC64, 1, [...])
3102         ;;
3103 S390X)
3104         AC_DEFINE(TARGET_S390X, 1, [...])
3105         ;;
3106 MIPS)
3107         AC_DEFINE(TARGET_MIPS, 1, [...])
3108         ;;
3109 IA64)
3110         AC_DEFINE(TARGET_IA64, 1, [...])
3111         ;;
3112 SPARC)
3113         AC_DEFINE(TARGET_SPARC, 1, [...])
3114         ;;
3115 SPARC64)
3116         AC_DEFINE(TARGET_SPARC64, 1, [...])
3117         ;;
3118 esac
3119
3120 case "$HOST" in
3121 X86)
3122         AC_DEFINE(HOST_X86, 1, [...])
3123         ;;
3124 AMD64)
3125         AC_DEFINE(HOST_AMD64, 1, [...])
3126         ;;
3127 ARM)
3128         AC_DEFINE(HOST_ARM, 1, [...])
3129         ;;
3130 ARM64)
3131         AC_DEFINE(HOST_ARM64, 1, [...])
3132         ;;
3133 POWERPC)
3134         AC_DEFINE(HOST_POWERPC, 1, [...])
3135         ;;
3136 POWERPC64)
3137         AC_DEFINE(HOST_POWERPC, 1, [...])
3138         AC_DEFINE(HOST_POWERPC64, 1, [...])
3139         ;;
3140 S390X)
3141         AC_DEFINE(HOST_S390X, 1, [...])
3142         ;;
3143 MIPS)
3144         AC_DEFINE(HOST_MIPS, 1, [...])
3145         ;;
3146 IA64)
3147         AC_DEFINE(HOST_IA64, 1, [...])
3148         ;;
3149 SPARC)
3150         AC_DEFINE(HOST_SPARC, 1, [...])
3151         ;;
3152 SPARC64)
3153         AC_DEFINE(HOST_SPARC64, 1, [...])
3154         ;;
3155 esac
3156
3157
3158
3159 dnl *************
3160 dnl *** VTUNE ***
3161 dnl *************
3162
3163 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
3164 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
3165
3166 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
3167
3168 if test "x$enable_vtune" = "xyes"; then
3169         if test "x$with_vtune" = "x"; then
3170                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
3171         else
3172                 VTUNE_PATH=$with_vtune
3173         fi
3174         VTUNE_INCLUDE=$VTUNE_PATH/include
3175         case "$TARGET" in
3176         X86)
3177                 VTUNE_LIB=$VTUNE_PATH/lib32
3178                 ;;
3179         AMD64)
3180                 VTUNE_LIB=$VTUNE_PATH/lib64
3181                 ;;
3182         *)
3183                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
3184                 ;;
3185         esac
3186         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
3187                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
3188         fi
3189         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
3190                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
3191         fi
3192
3193         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
3194         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
3195
3196         AC_SUBST(VTUNE_LIBS)
3197         AC_SUBST(VTUNE_CFLAGS)
3198 fi
3199 dnl Use GCC atomic ops if they work on the target.
3200 if test x$GCC = "xyes"; then
3201         case $TARGET in
3202         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
3203                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
3204                 ;;
3205         esac
3206 fi
3207
3208 if test "x$target_mach" = "xyes"; then
3209
3210    if test "x$TARGET_SYS" = "xWATCHOS"; then
3211           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
3212           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3213           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3214    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
3215           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3216           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3217           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3218    else
3219        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
3220        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
3221        #error fail this for ios
3222        #endif
3223        return 0;
3224        ], [
3225                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
3226           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
3227           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
3228        ], [
3229           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3230           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3231           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3232        ])
3233         fi
3234    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
3235 fi
3236
3237 if test "x$sizeof_register" = "x4"; then
3238    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
3239 elif test "x$sizeof_register" = "x8"; then
3240    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
3241 else
3242    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
3243 fi
3244
3245 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
3246    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
3247 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
3248    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
3249 else
3250    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
3251 fi
3252
3253 if test "x$have_visibility_hidden" = "xyes"; then
3254    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
3255 fi
3256
3257 if test "x$have_deprecated" = "xyes"; then
3258    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
3259 fi
3260
3261 dnl 
3262 dnl Simple Generational checks (sgen)
3263 dnl
3264 SGEN_DEFINES=
3265 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
3266 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
3267 if test x$buildsgen = xyes; then
3268    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
3269    SGEN_DEFINES="-DHAVE_SGEN_GC"
3270
3271         conc_gc_msg=""
3272    if test x$with_sgen_default_concurrent != xno; then
3273        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
3274            conc_gc_msg=" (concurrent by default)"
3275    fi
3276
3277    if test "x$gc_msg" = "x"; then
3278       gc_msg="sgen$conc_gc_msg"
3279    else
3280       gc_msg="sgen$conc_gc_msg and $gc_msg"
3281    fi
3282 fi
3283 AC_SUBST(SGEN_DEFINES)
3284 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
3285
3286 jit_status="Building and using the JIT"
3287
3288 libsuffix=".so"
3289
3290 case "$host" in
3291      *-*-darwin*)
3292         libsuffix=".dylib"
3293         LIBC="libc.dylib"
3294         INTL="libintl.dylib"
3295         SQLITE="libsqlite.0.dylib"
3296         SQLITE3="libsqlite3.0.dylib"
3297         X11="libX11.dylib"
3298         GDKX11="libgdk-x11-2.0.dylib"
3299         GTKX11="libgtk-x11-2.0.dylib"
3300         ;;
3301      *-*-*netbsd*)
3302         LIBC="libc.so"
3303         INTL="libintl.so"
3304         SQLITE="libsqlite.so"
3305         SQLITE3="libsqlite3.so"
3306         ;;
3307      *-*-kfreebsd*-gnu)
3308         LIBC="libc.so.0.1"
3309         INTL="libc.so.0.1"
3310         X11="libX11.so.6"
3311         ;;
3312     *-*-*freebsd*)
3313         LIBC="libc.so.7"
3314         INTL="libintl.so"
3315         SQLITE="libsqlite.so"
3316         SQLITE3="libsqlite3.so"
3317         ;;
3318     *-*-*openbsd*)
3319         LIBC="libc.so"
3320         INTL="libintl.so"
3321         SQLITE="libsqlite.so"
3322         SQLITE3="libsqlite3.so"
3323         ;;
3324     *-*-*linux*)
3325         AC_PATH_X
3326         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
3327         AC_MSG_CHECKING(for the soname of libX11.so)
3328         for i in $x_libraries $dlsearch_path; do
3329                 for r in 4 5 6; do
3330                         if test -f $i/libX11.so.$r; then
3331                                 X11=libX11.so.$r
3332                                 AC_MSG_RESULT($X11)
3333                         fi
3334                 done
3335         done
3336         
3337         if test "x$X11" = "xlibX11.so"; then
3338                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
3339                 X11=libX11.so.6
3340         fi
3341         ;;
3342 esac
3343
3344
3345 AC_SUBST(libsuffix)
3346
3347 AC_ARG_WITH([libgdiplus],
3348         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3349         [], [with_libgdiplus=installed])
3350
3351 # default install location
3352 libgdiplus_install_loc=libgdiplus${libsuffix}
3353 case "$host" in
3354     *-*-*linux*)
3355     libgdiplus_install_loc=libgdiplus${libsuffix}.0
3356     ;;
3357 esac
3358
3359 case $with_libgdiplus in
3360     no|installed)
3361     libgdiplus_loc=
3362     ;;
3363
3364     yes|sibling)
3365     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3366     ;;
3367
3368     /*) # absolute path, assume it is an install location
3369     libgdiplus_loc=$with_libgdiplus
3370     libgdiplus_install_loc=$with_libgdiplus
3371     ;;
3372
3373     *)
3374     libgdiplus_loc=`pwd`/$with_libgdiplus
3375     ;;
3376 esac
3377 AC_SUBST([libgdiplus_loc])
3378 AC_SUBST([libgdiplus_install_loc])
3379
3380 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3381 if test "x$icall_symbol_map" = "xyes"; then
3382    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3383 fi
3384
3385 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3386 if test "x$icall_export" = "xyes"; then
3387    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3388 fi
3389
3390 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3391 if test "x$icall_tables" = "xno"; then
3392    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3393 fi
3394
3395 if test "x$with_tls" = "x__thread"; then
3396         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3397         # Pass the information to libgc
3398         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3399         AC_MSG_CHECKING(if the tls_model attribute is supported)
3400         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3401                 ], [
3402                         AC_MSG_RESULT(yes)
3403                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3404                 ], [
3405                         AC_MSG_RESULT(no)
3406         ])
3407 fi
3408
3409 if test ${TARGET} = ARM; then
3410         dnl ******************************************
3411         dnl *** Check to see what FPU is available ***
3412         dnl ******************************************
3413         AC_MSG_CHECKING(which FPU to use)
3414
3415         #
3416         # This is a bit tricky:
3417         #
3418         # if (__ARM_PCS_VFP) {
3419         #       /* mfloat-abi=hard == VFP with hard ABI */
3420         # } elif (!__SOFTFP__) {
3421         #       /* mfloat-abi=softfp == VFP with soft ABI */
3422         # } else {
3423         #       /* mfloat-abi=soft == no VFP */
3424         # }
3425         #
3426         # The exception is iOS (w/ GCC) where none of the above
3427         # are defined (but iOS always uses the 'softfp' ABI).
3428         #
3429         # No support for FPA.
3430         #
3431
3432         fpu=NONE
3433
3434         # iOS GCC always uses the 'softfp' ABI.
3435         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
3436                 fpu=VFP
3437         fi
3438
3439         # Are we using the 'hard' ABI?
3440         if test x$fpu = xNONE; then
3441                 AC_TRY_COMPILE([], [
3442                         #ifndef __ARM_PCS_VFP
3443                         #error "Float ABI is not 'hard'"
3444                         #endif
3445                         return 0;
3446                 ], [
3447                         fpu=VFP_HARD
3448                 ], [
3449                         fpu=NONE
3450                 ])
3451         fi
3452
3453         # No 'hard' ABI. 'soft' or 'softfp'?
3454         if test x$fpu = xNONE; then
3455                 AC_TRY_COMPILE([], [
3456                         #ifdef __SOFTFP__
3457                         #error "Float ABI is not 'softfp'"
3458                         #endif
3459                         return 0;
3460                 ], [
3461                         fpu=VFP
3462                 ], [
3463                         fpu=NONE
3464                 ])
3465         fi
3466
3467         if test x$arm_fpu != x; then
3468            fpu=$arm_fpu
3469         fi
3470
3471         AC_MSG_RESULT($fpu)
3472         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3473         unset fpu
3474
3475         dnl *********************************************
3476         dnl *** Check which ARM version(s) we can use ***
3477         dnl *********************************************
3478         AC_MSG_CHECKING(which ARM version to use)
3479
3480         AC_TRY_COMPILE([], [
3481                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3482                 #error Not on ARM v5.
3483                 #endif
3484                 return 0;
3485         ], [
3486                 arm_v5=yes
3487
3488                 arm_ver=ARMv5
3489         ], [])
3490
3491         AC_TRY_COMPILE([], [
3492                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3493                 #error Not on ARM v6.
3494                 #endif
3495                 return 0;
3496         ], [
3497                 arm_v5=yes
3498                 arm_v6=yes
3499
3500                 arm_ver=ARMv6
3501         ], [])
3502
3503         AC_TRY_COMPILE([], [
3504                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3505                 #error Not on ARM v7.
3506                 #endif
3507                 return 0;
3508         ], [
3509                 arm_v5=yes
3510                 arm_v6=yes
3511                 arm_v7=yes
3512
3513                 arm_ver=ARMv7
3514         ], [])
3515
3516         AC_MSG_RESULT($arm_ver)
3517
3518         if test x$arm_v5 = xyes; then
3519                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3520                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3521         fi
3522
3523         if test x$arm_v6 = xyes; then
3524                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3525                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3526         fi
3527
3528         if test x$arm_v7 = xyes; then
3529                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3530                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3531         fi
3532 fi
3533
3534 if test ${TARGET} = unknown; then
3535         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3536         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3537 fi
3538
3539 if test ${ACCESS_UNALIGNED} = no; then
3540         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3541 fi
3542
3543 case "x$libgc" in
3544         xincluded)
3545                 # Pass CPPFLAGS to libgc configure
3546                 # We should use a separate variable for this to avoid passing useless and
3547                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3548                 # This should be executed late so we pick up the final version of CPPFLAGS
3549                 # The problem with this approach, is that during a reconfigure, the main
3550                 # configure scripts gets invoked with these arguments, so we use separate
3551                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3552                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3553                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3554                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3555                 fi
3556                 # Don't pass -finstrument-for-thread-suspension in, 
3557                 # if these are instrumented it will be very bad news 
3558                 # (infinite recursion, undefined parking behavior, etc)
3559                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3560                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3561                 if test "x$support_boehm" = "xyes"; then
3562                         AC_CONFIG_SUBDIRS(libgc)
3563                 fi
3564                 ;;
3565 esac
3566
3567 AC_ARG_WITH(profile4_x,      [  --with-profile4=yes,no          If you want to install the 4.6 FX (defaults to yes)],                 [], [with_profile4_x=yes])
3568 AC_ARG_WITH(monodroid,       [  --with-monodroid=yes,no         If you want to build the MonoDroid assemblies (defaults to no)],      [], [with_monodroid=no])
3569 AC_ARG_WITH(monotouch,       [  --with-monotouch=yes,no         If you want to build the Xamarin.iOS assemblies (defaults to no)],    [], [with_monotouch=no])
3570 AC_ARG_WITH(monotouch_watch, [  --with-monotouch_watch=yes,no   If you want to build the Xamarin.WatchOS assemblies (defaults to no)],[], [with_monotouch_watch=no])
3571 AC_ARG_WITH(monotouch_tv,    [  --with-monotouch_tv=yes,no      If you want to build the Xamarin.TVOS assemblies (defaults to no)],   [], [with_monotouch_tv=no])
3572 AC_ARG_WITH(bitcode,         [  --with-bitcode=yes,no           If bitcode is enabled (defaults to no)],                              [], [with_bitcode=no])
3573 AC_ARG_WITH(xammac,          [  --with-xammac=yes,no            If you want to build the Xamarin.Mac assemblies (defaults to no)],    [], [with_xammac=no])
3574 AC_ARG_WITH(mobile_static,   [  --with-mobile_static=yes,no     If you want to build the mobile_static assemblies (defaults to no)],  [], [with_mobile_static=no])
3575
3576 MALLOC_MEMPOOLS=no
3577 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3578         if test x$with_malloc_mempools = xyes; then
3579                 MALLOC_MEMPOOLS=yes
3580                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3581         fi
3582 ])
3583
3584
3585 DISABLE_MCS_DOCS=no
3586 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3587         if test x$with_mcs_docs != xyes; then
3588                 DISABLE_MCS_DOCS=yes
3589         fi
3590 ])
3591 if test x$with_profile4_x != xyes; then
3592         DISABLE_MCS_DOCS=yes
3593 fi
3594
3595 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
3596         if test x$with_lazy_gc_thread_creation != xno ; then
3597                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3598         fi
3599 ], [with_lazy_gc_thread_creation=no])
3600
3601 AC_ARG_WITH(cooperative_gc, [  --with-cooperative-gc=yes|no      Enable cooperative stop-the-world garbage collection (sgen only) (defaults to no)],[
3602         if test x$with_cooperative_gc != xno ; then
3603                 AC_DEFINE(USE_COOP_GC,1,[Enable cooperative stop-the-world garbage collection.])
3604         fi
3605 ], [with_cooperative_gc=no])
3606
3607 AM_CONDITIONAL([ENABLE_COOP], [test x$with_cooperative_gc != xno])
3608
3609 AC_ARG_ENABLE(checked_build, [  --enable-checked-build=LIST      To enable checked build (expensive asserts), configure with a comma-separated LIST of checked build modules and then include that same list in the environment variable MONO_CHECK_MODE at runtime. Recognized checked build modules: all, gc, metadata, thread],[
3610
3611         if test x$enable_checked_build != x ; then
3612                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
3613         fi
3614         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
3615                 eval "mono_checked_build_test_enable_$feature='yes'"
3616         done
3617
3618         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
3619                 eval "mono_checked_build_test_enable_gc='yes'"
3620                 eval "mono_checked_build_test_enable_metadata='yes'"
3621                 eval "mono_checked_build_test_enable_thread='yes'"
3622         fi
3623
3624         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
3625                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
3626         fi
3627
3628         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
3629                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
3630         fi
3631
3632         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
3633                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
3634         fi
3635
3636 ], [])
3637
3638 AC_CHECK_HEADER([malloc.h], 
3639                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
3640                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3641
3642 if test x"$GCC" = xyes; then
3643         # Implicit function declarations are not 64 bit safe
3644         # Do this late, since this causes lots of configure tests to fail
3645         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3646         # jay has a lot of implicit declarations
3647         JAY_CFLAGS="-Wno-implicit-function-declaration"
3648 fi
3649
3650 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3651 # instead of libmono-static.a
3652 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3653    LIBMONO_LA=libmini-static.la
3654 else
3655    if test x$buildsgen = xyes; then
3656       LIBMONO_LA=libmonosgen-$API_VER.la
3657    else
3658       LIBMONO_LA=libmonoboehm-$API_VER.la
3659    fi
3660 fi
3661 AC_SUBST(LIBMONO_LA)
3662
3663 dnl
3664 dnl Consistency settings
3665 dnl
3666 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
3667    DISABLE_MCS_DOCS=yes
3668    with_profile4_x=no
3669    with_monodroid=no
3670    with_monotouch=no
3671    with_monotouch_watch=no
3672    with_monotouch_tv=no
3673    with_xammac=no
3674    with_mobile_static=no
3675 fi
3676
3677 if test x$DISABLE_MCS_DOCS = xyes; then
3678    docs_dir=""
3679 else
3680    docs_dir=docs
3681 fi
3682 AC_SUBST(docs_dir)
3683
3684 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
3685 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
3686
3687 libmono_ldflags="$libmono_ldflags $LIBS"
3688
3689 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = xyes])
3690 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
3691 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
3692 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
3693 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
3694 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
3695 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
3696 AM_CONDITIONAL(INSTALL_MOBILE_STATIC, [test "x$with_mobile_static" != "xno"])
3697
3698 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
3699 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
3700 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
3701 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
3702 AM_CONDITIONAL(X86, test x$TARGET = xX86)
3703 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
3704 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
3705 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
3706 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
3707 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
3708 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
3709 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
3710 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
3711 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
3712 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
3713 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
3714 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
3715 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
3716
3717 AC_SUBST(LIBC)
3718 AC_SUBST(INTL)
3719 AC_SUBST(SQLITE)
3720 AC_SUBST(SQLITE3)
3721 AC_SUBST(X11)
3722 AC_SUBST(GDKX11)
3723 AC_SUBST(GTKX11)
3724 AC_SUBST(XINERAMA)
3725 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
3726 AC_SUBST(arch_target)
3727 AC_SUBST(CFLAGS)
3728 AC_SUBST(CPPFLAGS)
3729 AC_SUBST(LDFLAGS)
3730
3731 #This must always be defined when building the runtime
3732 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
3733
3734 mono_build_root=`pwd`
3735 AC_SUBST(mono_build_root)
3736
3737 mono_runtime=mono/mini/mono
3738 AC_SUBST(mono_runtime)
3739
3740 mono_cfg_root=$mono_build_root/runtime
3741 if test x$host_win32 = xyes; then
3742   if test "x$cross_compiling" = "xno"; then
3743     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
3744   else
3745     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
3746   fi
3747 else
3748   mono_cfg_dir=$mono_cfg_root/etc
3749 fi
3750 AC_SUBST(mono_cfg_dir)
3751
3752 default_profile=net_4_x
3753 if test -z "$INSTALL_MONODROID_TRUE"; then :
3754    default_profile=monodroid
3755 fi
3756 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
3757    default_profile=monotouch
3758 fi
3759 if test -z "$INSTALL_XAMMAC_TRUE"; then :
3760    default_profile=xammac
3761 fi
3762 if test -z "$INSTALL_4_x_TRUE"; then :
3763    default_profile=net_4_x
3764 fi
3765 DEFAULT_PROFILE=$default_profile
3766 AC_SUBST(DEFAULT_PROFILE)
3767
3768 AC_CONFIG_FILES([po/mcs/Makefile.in])
3769
3770 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
3771 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
3772
3773 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
3774 [   depth=../../../..
3775     case $srcdir in
3776     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3777     .) reldir=$depth ;;
3778     *) reldir=$depth/$srcdir ;;
3779     esac
3780     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
3781     cd runtime/etc/mono/1.0
3782     rm -f machine.config
3783     $LN_S $reldir/data/net_1_1/machine.config machine.config
3784     cd $depth
3785 ],[LN_S='$LN_S'])
3786
3787 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
3788 [   depth=../../../..
3789     case $srcdir in
3790     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3791     .) reldir=$depth ;;
3792     *) reldir=$depth/$srcdir ;;
3793     esac
3794     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3795     cd runtime/etc/mono/2.0
3796     rm -f machine.config
3797     $LN_S $reldir/data/net_2_0/machine.config machine.config
3798     cd $depth
3799 ],[LN_S='$LN_S'])
3800
3801 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
3802 [   depth=../../../..
3803     case $srcdir in
3804     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3805     .) reldir=$depth ;;
3806     *) reldir=$depth/$srcdir ;;
3807     esac
3808     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3809     cd runtime/etc/mono/2.0
3810     rm -f web.config
3811     $LN_S $reldir/data/net_2_0/web.config web.config
3812     cd $depth
3813 ],[LN_S='$LN_S'])
3814
3815 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
3816 [   depth=../../..
3817     case $srcdir in
3818     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3819     .) reldir=$depth ;;
3820     *) reldir=$depth/$srcdir ;;
3821     esac
3822     $ac_aux_dir/install-sh -d runtime/etc/mono/
3823     cd runtime/etc/mono/
3824     rm -f browscap.ini
3825     $LN_S $reldir/data/browscap.ini browscap.ini
3826     cd $depth
3827 ],[LN_S='$LN_S'])
3828
3829 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
3830 [   depth=../../../../..
3831     case $srcdir in
3832     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3833     .) reldir=$depth ;;
3834     *) reldir=$depth/$srcdir ;;
3835     esac
3836     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
3837     cd runtime/etc/mono/2.0/Browsers
3838     rm -f Compat.browser
3839     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3840     cd $depth
3841 ],[LN_S='$LN_S'])
3842
3843 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
3844 [   depth=../../../../..
3845     case $srcdir in
3846     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3847     .) reldir=$depth ;;
3848     *) reldir=$depth/$srcdir ;;
3849     esac
3850     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
3851     cd runtime/etc/mono/4.0/Browsers
3852     rm -f Compat.browser
3853     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3854     cd $depth
3855 ],[LN_S='$LN_S'])
3856
3857 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
3858 [   depth=../../../../..
3859     case $srcdir in
3860     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3861     .) reldir=$depth ;;
3862     *) reldir=$depth/$srcdir ;;
3863     esac
3864     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
3865     cd runtime/etc/mono/4.5/Browsers
3866     rm -f Compat.browser
3867     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3868     cd $depth
3869 ],[LN_S='$LN_S'])
3870
3871 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
3872 [   depth=../../../..
3873     case $srcdir in
3874     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3875     .) reldir=$depth ;;
3876     *) reldir=$depth/$srcdir ;;
3877     esac
3878     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3879     cd runtime/etc/mono/4.0
3880     rm -f machine.config
3881     $LN_S $reldir/data/net_4_0/machine.config machine.config
3882     cd $depth
3883 ],[LN_S='$LN_S'])
3884
3885 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
3886 [   depth=../../../..
3887     case $srcdir in
3888     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3889     .) reldir=$depth ;;
3890     *) reldir=$depth/$srcdir ;;
3891     esac
3892     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
3893     cd runtime/etc/mono/4.0
3894     rm -f web.config
3895     $LN_S $reldir/data/net_4_0/web.config web.config
3896     cd $depth
3897 ],[LN_S='$LN_S'])
3898
3899 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
3900 [   depth=../../../..
3901     case $srcdir in
3902     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3903     .) reldir=$depth ;;
3904     *) reldir=$depth/$srcdir ;;
3905     esac
3906     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3907     cd runtime/etc/mono/4.5
3908     rm -f machine.config
3909     $LN_S $reldir/data/net_4_5/machine.config machine.config
3910     cd $depth
3911 ],[LN_S='$LN_S'])
3912
3913 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
3914 [   depth=../../../..
3915     case $srcdir in
3916     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3917     .) reldir=$depth ;;
3918     *) reldir=$depth/$srcdir ;;
3919     esac
3920     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
3921     cd runtime/etc/mono/4.5
3922     rm -f web.config
3923     $LN_S $reldir/data/net_4_5/web.config web.config
3924     cd $depth
3925 ],[LN_S='$LN_S'])
3926
3927 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])
3928 AC_CONFIG_COMMANDS([nolock-libtool], [sed -e 's/lock_old_archive_extraction=yes/lock_old_archive_extraction=no/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool])
3929
3930 AC_OUTPUT([
3931 Makefile
3932 mono-uninstalled.pc
3933 acceptance-tests/Makefile
3934 llvm/Makefile
3935 scripts/mono-find-provides
3936 scripts/mono-find-requires
3937 mono/Makefile
3938 mono/utils/Makefile
3939 mono/metadata/Makefile
3940 mono/dis/Makefile
3941 mono/cil/Makefile
3942 mono/arch/Makefile
3943 mono/arch/x86/Makefile
3944 mono/arch/amd64/Makefile
3945 mono/arch/ppc/Makefile
3946 mono/arch/sparc/Makefile
3947 mono/arch/s390x/Makefile
3948 mono/arch/arm/Makefile
3949 mono/arch/arm64/Makefile
3950 mono/arch/ia64/Makefile
3951 mono/arch/mips/Makefile
3952 mono/sgen/Makefile
3953 mono/tests/Makefile
3954 mono/tests/tests-config
3955 mono/tests/assemblyresolve/Makefile
3956 mono/tests/gc-descriptors/Makefile
3957 mono/unit-tests/Makefile
3958 mono/benchmark/Makefile
3959 mono/io-layer/Makefile
3960 mono/mini/Makefile
3961 mono/profiler/Makefile
3962 m4/Makefile
3963 ikvm-native/Makefile
3964 scripts/Makefile
3965 man/Makefile
3966 docs/Makefile
3967 data/Makefile
3968 data/net_2_0/Makefile
3969 data/net_4_0/Makefile
3970 data/net_4_5/Makefile
3971 data/net_2_0/Browsers/Makefile
3972 data/net_4_0/Browsers/Makefile
3973 data/net_4_5/Browsers/Makefile
3974 data/mint.pc
3975 data/mono-2.pc
3976 data/monosgen-2.pc
3977 data/mono.pc
3978 data/mono-cairo.pc
3979 data/mono-nunit.pc
3980 data/mono-options.pc
3981 data/mono-lineeditor.pc
3982 data/monodoc.pc
3983 data/dotnet.pc
3984 data/dotnet35.pc
3985 data/wcf.pc
3986 data/cecil.pc
3987 data/system.web.extensions_1.0.pc
3988 data/system.web.extensions.design_1.0.pc
3989 data/system.web.mvc.pc
3990 data/system.web.mvc2.pc
3991 data/system.web.mvc3.pc
3992 data/aspnetwebstack.pc
3993 data/reactive.pc
3994 samples/Makefile
3995 support/Makefile
3996 data/config
3997 tools/Makefile
3998 tools/locale-builder/Makefile
3999 tools/sgen/Makefile
4000 tools/monograph/Makefile
4001 runtime/Makefile
4002 msvc/Makefile
4003 po/Makefile
4004 ])
4005
4006 # Update all submodules recursively to ensure everything is checked out
4007 $srcdir/scripts/update_submodules
4008
4009 if test x$host_win32 = xyes; then
4010    # Get rid of 'cyg' prefixes in library names
4011    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4012    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
4013    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
4014    # executable doesn't work...
4015    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4016 fi
4017
4018 if test x$host_darwin = xyes; then
4019    # This doesn't seem to be required and it slows down parallel builds
4020    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
4021 fi
4022
4023 (
4024   case $prefix in
4025   NONE) prefix=$ac_default_prefix ;;
4026   esac
4027   case $exec_prefix in
4028   NONE) exec_prefix='${prefix}' ;;
4029   esac
4030
4031   #
4032   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
4033   # any existing config.make.  This allows people to share the same source tree
4034   # with different build directories, one native and one cross
4035   #
4036   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
4037
4038     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
4039
4040     echo "prefix=$prefix" > $mcs_topdir/build/config.make
4041     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
4042     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
4043     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
4044     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
4045     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
4046     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
4047     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
4048
4049     case $INSTALL in
4050     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
4051     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
4052     esac
4053
4054     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
4055
4056     export VERSION
4057     [myver=$($AWK 'BEGIN {
4058       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
4059       if(length(vsplit [1]) > 4) {
4060         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
4061       }
4062       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
4063     }')]
4064
4065     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
4066
4067     if test x$host_darwin = xyes; then
4068       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
4069     fi
4070
4071         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
4072            enable_system_aot=yes
4073         fi
4074
4075     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
4076       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
4077     fi
4078
4079     if test x$DISABLE_MCS_DOCS = xyes; then
4080       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
4081     fi
4082
4083     if test x$has_extension_module != xno; then
4084         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
4085     fi
4086     
4087     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
4088     
4089     if test "x$test_bcl_opt" = "xyes"; then    
4090       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
4091     fi
4092
4093   fi
4094
4095 )
4096
4097 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
4098
4099 echo "
4100         mcs source:    $mcsdir
4101
4102    Engine:
4103         Host:          $host
4104         Target:        $target
4105         GC:            $gc_msg 
4106         TLS:           $with_tls
4107         SIGALTSTACK:   $with_sigaltstack
4108         Engine:        $jit_status
4109         BigArrays:     $enable_big_arrays
4110         DTrace:        $enable_dtrace
4111         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
4112
4113    Libraries:
4114         .NET 4.6:        $with_profile4_x
4115         Xamarin.Android: $with_monodroid
4116         Xamarin.iOS:     $with_monotouch
4117         Xamarin.WatchOS: $with_monotouch_watch
4118         Xamarin.TVOS:    $with_monotouch_tv
4119         Xamarin.Mac:     $with_xammac
4120         mobile_static:   $with_mobile_static
4121         JNI support:     $jdk_headers_found
4122         libgdiplus:      $libgdiplus_msg
4123         zlib:            $zlib_msg
4124         $disabled
4125 "
4126 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
4127    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
4128 fi