[remoting] Convert mono_load_remote_field_new_checked to managed code (#3149)
[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=$enableval, enable_system_aot=default)
727
728 DISABLED_FEATURES=none
729
730 #
731 # Set the build profiles and options before things which use them
732 #
733
734 AC_ARG_WITH(profile4_x,      [  --with-profile4=yes,no          If you want to install the 4.x FX (defaults to yes)],                 [], [with_profile4_x=default])
735 AC_ARG_WITH(monodroid,       [  --with-monodroid=yes,no         If you want to build the MonoDroid assemblies (defaults to no)],      [], [with_monodroid=default])
736 AC_ARG_WITH(monotouch,       [  --with-monotouch=yes,no         If you want to build the Xamarin.iOS assemblies (defaults to no)],    [], [with_monotouch=default])
737 AC_ARG_WITH(monotouch_watch, [  --with-monotouch_watch=yes,no   If you want to build the Xamarin.WatchOS assemblies (defaults to no)],[], [with_monotouch_watch=default])
738 AC_ARG_WITH(monotouch_tv,    [  --with-monotouch_tv=yes,no      If you want to build the Xamarin.TVOS assemblies (defaults to no)],   [], [with_monotouch_tv=default])
739 AC_ARG_WITH(bitcode,         [  --with-bitcode=yes,no           If bitcode is enabled (defaults to no)],                              [], [with_bitcode=default])
740 AC_ARG_WITH(xammac,          [  --with-xammac=yes,no            If you want to build the Xamarin.Mac assemblies (defaults to no)],    [], [with_xammac=default])
741 AC_ARG_WITH(mobile_static,   [  --with-mobile_static=yes,no     If you want to build the mobile_static assemblies (defaults to no)],  [], [with_mobile_static=default])
742
743 AC_ARG_WITH(runtime_preset, [  --with-runtime_preset=net_4_x,all,mobile_static,bitcode_mobile_static   Which default profile to build (defaults to net_4_x)],  [], [with_runtime_preset=net_4_x])
744
745 dnl
746 dnl Profile defaults
747 dnl
748 TEST_PROFILE=default
749 enable_llvm_default=no
750
751 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
752    DISABLE_MCS_DOCS_default=yes
753    with_profile4_x_default=no
754    with_monodroid_default=no
755    with_monotouch_default=no
756    with_monotouch_watch_default=no
757    with_monotouch_tv_default=no
758    with_xammac_default=no
759    with_mobile_static_default=no
760    with_bitcode_default=no
761    with_cooperative_gc_default=no
762 elif test x$with_runtime_preset = xnet_4_x; then
763    with_cooperative_gc_default=no
764    with_profile4_x_default=yes
765    with_monodroid_default=no
766    with_monotouch_default=no
767    with_monotouch_watch_default=no
768    with_monotouch_tv_default=no
769    with_xammac_default=no
770    with_mobile_static_default=no
771    with_bitcode_default=no
772 elif test x$with_runtime_preset = xall; then
773    with_cooperative_gc_default=no
774    with_profile4_x_default=yes
775    with_monodroid_default=yes
776    with_monotouch_default=yes
777    with_monotouch_watch_default=yes
778    with_monotouch_tv_default=yes
779    with_xammac_default=yes
780    with_mobile_static_default=yes
781    with_bitcode_default=no
782 elif test x$with_runtime_preset = xmobile_static; then
783    DISABLE_MCS_DOCS_default=yes
784    with_cooperative_gc_default=no
785    with_profile4_x_default=no
786    with_monodroid_default=no
787    with_monotouch_default=no
788    with_monotouch_watch_default=no
789    with_monotouch_tv_default=no
790    with_xammac_default=no
791    with_mobile_static_default=yes
792    with_bitcode_default=no
793    with_cooperative_gc_default=no
794    TEST_PROFILE=mobile_static 
795 elif test x$with_runtime_preset = xbitcode_mobile_static; then
796    DISABLE_MCS_DOCS_default=yes
797    with_profile4_x_default=no
798    with_monodroid_default=no
799    with_monotouch_default=no
800    with_monotouch_watch_default=no
801    with_monotouch_tv_default=no
802    with_xammac_default=no
803    with_mobile_static_default=yes
804    with_bitcode_default=yes
805    with_cooperative_gc_default=yes
806    TEST_PROFILE=mobile_static 
807    enable_llvm_default=yes
808    MONO_LLVMONLY=yes
809 else
810    with_profile4_x_default=yes
811    with_monodroid_default=no
812    with_monotouch_default=no
813    with_monotouch_watch_default=no
814    with_monotouch_tv_default=no
815    with_bitcode_default=no
816    with_xammac_default=no
817    with_mobile_static_default=no
818    with_cooperative_gc_default=no
819 fi
820
821 AC_SUBST(TEST_PROFILE)
822
823 if test "x$with_profile4_x" = "xdefault"; then
824    with_profile4_x=$with_profile4_x_default
825 fi
826 if test "x$with_monodroid" = "xdefault"; then
827    with_monodroid=$with_monodroid_default
828 fi
829 if test "x$with_monotouch" = "xdefault"; then
830    with_monotouch=$with_monotouch_default
831 fi
832 if test "x$with_monotouch_watch" = "xdefault"; then
833    with_monotouch_watch=$with_monotouch_watch_default
834 fi
835 if test "x$with_monotouch_tv" = "xdefault"; then
836    with_monotouch_tv=$with_monotouch_tv_default
837 fi
838 if test "x$with_bitcode" = "xdefault"; then
839    with_bitcode=$with_bitcode_default
840 fi
841 if test "x$with_xammac" = "xdefault"; then
842    with_xammac=$with_xammac_default
843 fi
844 if test "x$with_mobile_static" = "xdefault"; then
845    with_mobile_static=$with_mobile_static_default
846 fi
847
848 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = "xyes"])
849 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
850 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
851 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
852 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
853 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
854 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
855 AM_CONDITIONAL(INSTALL_MOBILE_STATIC, [test "x$with_mobile_static" != "xno"])
856
857 AC_SUBST(MONO_LLVMONLY)
858
859 AC_SUBST(BITCODE)
860
861 default_profile=net_4_x
862 if test -z "$INSTALL_MONODROID_TRUE"; then :
863    default_profile=monodroid
864 fi
865 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
866    default_profile=monotouch
867 fi
868 if test -z "$INSTALL_XAMMAC_TRUE"; then :
869    default_profile=xammac
870 fi
871 if test -z "$INSTALL_MOBILE_STATIC_TRUE"; then :
872    default_profile=mobile_static
873 fi
874 if test -z "$INSTALL_4_x_TRUE"; then :
875    default_profile=net_4_x
876 fi
877 DEFAULT_PROFILE=$default_profile
878 AC_SUBST(DEFAULT_PROFILE)
879
880 #
881 # End build profile configuration
882 #
883
884 if test x$USE_NLS = xprofile_default; then
885
886 if test x$host_darwin = xyes; then
887 # We make the default value for USE_NLS
888 # "no" on OSX because it isn't available on most
889 # default OSX installs. The most common configurations will
890 # all disable it, so this saves us typing.
891   USE_NLS=no
892   AC_SUBST([USE_NLS])
893   AC_MSG_RESULT([$USE_NLS])
894 else
895   USE_NLS=yes
896   AC_SUBST([USE_NLS])
897   AC_MSG_RESULT([$USE_NLS])
898 fi
899
900 fi
901
902 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
903      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
904      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
905          security, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
906 [
907         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
908                 eval "mono_feature_disable_$feature='yes'"
909         done
910         DISABLED_FEATURES=$enable_minimal
911         disabled="Disabled:      $enable_minimal"
912 ],[])
913
914 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
915
916 if test "x$mono_feature_disable_aot" = "xyes"; then
917         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
918         enable_system_aot=no
919         AC_MSG_NOTICE([Disabled AOT compiler])
920 fi
921
922 if test "x$mono_feature_disable_profiler" = "xyes"; then
923         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
924         AC_MSG_NOTICE([Disabled support for the profiler])
925 fi
926 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
927
928 if test "x$mono_feature_disable_decimal" = "xyes"; then
929         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
930         AC_MSG_NOTICE([Disabled support for decimal])
931 fi
932
933 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
934         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
935         AC_MSG_NOTICE([Disabled support for P/Invoke])
936 fi
937
938 if test "x$mono_feature_disable_debug" = "xyes"; then
939         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
940         AC_MSG_NOTICE([Disabled support for runtime debugging])
941 fi
942
943 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
944         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
945         mono_feature_disable_reflection_emit_save=yes
946         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
947 fi
948
949 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
950         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
951         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
952 fi
953
954 if test "x$mono_feature_disable_large_code" = "xyes"; then
955         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
956         AC_MSG_NOTICE([Disabled support for large assemblies])
957 fi
958
959 if test "x$mono_feature_disable_logging" = "xyes"; then
960         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
961         AC_MSG_NOTICE([Disabled support for logging])
962 fi
963
964 if test "x$mono_feature_disable_com" = "xyes"; then
965         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
966         AC_MSG_NOTICE([Disabled COM support])
967 fi
968
969 if test "x$mono_feature_disable_ssa" = "xyes"; then
970         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
971         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
972 fi
973
974 if test "x$mono_feature_disable_generics" = "xyes"; then
975         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
976         AC_MSG_NOTICE([Disabled Generics Support])
977 fi
978
979 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
980         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
981         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
982 fi
983
984 if test "x$mono_feature_disable_portability" = "xyes"; then
985         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
986         AC_MSG_NOTICE([Disabled IO Portability layer])
987 fi
988
989 if test "x$mono_feature_disable_attach" = "xyes"; then
990         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
991         AC_MSG_NOTICE([Disabled agent attach])
992 fi
993
994 if test "x$mono_feature_disable_full_messages" = "xyes"; then
995         AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
996         AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
997 fi
998
999 if test "x$mono_feature_disable_verifier" = "xyes"; then
1000         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
1001         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
1002 fi
1003
1004 if test "x$mono_feature_disable_jit" = "xyes"; then
1005         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
1006         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
1007 fi
1008
1009 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
1010
1011 if test "x$mono_feature_disable_simd" = "xyes"; then
1012         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
1013         AC_MSG_NOTICE([Disabled SIMD support])
1014 fi
1015
1016 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
1017         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
1018         AC_MSG_NOTICE([Disabled Soft Debugger.])
1019 fi
1020
1021 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
1022         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
1023         AC_MSG_NOTICE([Disabled Performance Counters.])
1024 fi
1025 if test "x$mono_feature_disable_normalization" = "xyes"; then
1026         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
1027         AC_MSG_NOTICE([Disabled String normalization support.])
1028 fi
1029
1030 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
1031         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
1032         AC_MSG_NOTICE([Disabled Assembly remapping.])
1033 fi
1034
1035 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
1036         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
1037         AC_MSG_NOTICE([Disabled Shared perfcounters.])
1038 fi
1039
1040 if test "x$mono_feature_disable_appdomains" = "xyes"; then
1041         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
1042         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
1043 fi
1044
1045 if test "x$mono_feature_disable_remoting" = "xyes"; then
1046         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
1047         AC_MSG_NOTICE([Disabled remoting])
1048 fi
1049
1050 if test "x$mono_feature_disable_security" = "xyes"; then
1051         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
1052         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
1053 fi
1054
1055 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
1056         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
1057         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
1058 fi
1059
1060 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
1061         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
1062         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
1063 fi
1064
1065 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
1066         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
1067         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
1068 fi
1069
1070 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
1071         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
1072         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
1073 fi
1074
1075 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
1076         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
1077         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
1078 fi
1079
1080 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
1081 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
1082
1083 has_extension_module=no
1084 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
1085 [
1086         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
1087                 if test x$extension = xdefault ; then
1088                         has_extension_module=yes;
1089                 fi
1090         done
1091         if test x$enable_extension_module = xyes; then
1092                 has_extension_module=yes;
1093         fi
1094 ], [])
1095
1096 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
1097
1098 if test x$has_extension_module != xno ; then
1099         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
1100         AC_MSG_NOTICE([Enabling mono extension module.])
1101 fi
1102
1103 # Deprecated
1104 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
1105
1106 AC_MSG_CHECKING(for visibility __attribute__)
1107 AC_COMPILE_IFELSE([
1108         AC_LANG_SOURCE([[
1109                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
1110                 int main () { doit (); return 0; }
1111         ]])
1112 ], [
1113    have_visibility_hidden=yes
1114    AC_MSG_RESULT(yes)
1115 ], [
1116    have_visibility_hidden=no
1117    AC_MSG_RESULT(no)
1118 ])
1119
1120 AC_MSG_CHECKING(for deprecated __attribute__)
1121 AC_TRY_COMPILE([
1122      int doit (void) __attribute__ ((deprecated));
1123      int doit (void) { return 0; }
1124 ], [
1125         return 0;
1126 ], [
1127    have_deprecated=yes
1128    AC_MSG_RESULT(yes)
1129 ], [
1130    have_deprecated=no
1131    AC_MSG_RESULT(no)
1132 ])
1133
1134 dnl
1135 dnl Boehm GC configuration
1136 dnl
1137
1138 AC_ARG_WITH(libgc,   [  --with-gc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=included])
1139
1140 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1141 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1142
1143 if test "x$support_boehm" = "xyes"; then
1144
1145         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1146         if test x$enable_parallel_mark = xyes; then
1147                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1148         fi
1149
1150         gc_msg=""
1151         LIBGC_CPPFLAGS=
1152         LIBGC_LIBS=
1153         LIBGC_STATIC_LIBS=
1154         libgc_dir=
1155         case "x$libgc" in
1156                 xincluded)
1157                         if test "x$support_boehm" = "xyes"; then
1158                                 libgc_dir=libgc
1159                         fi
1160
1161                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1162                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1163                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1164
1165                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1166
1167                         if test x$target_win32 = xyes; then
1168                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1169                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1170                         fi
1171
1172                         gc_msg="Included Boehm GC with typed GC"
1173                         if test x$enable_parallel_mark = xyes; then
1174                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1175                                 gc_msg="$gc_msg and parallel mark"
1176                         else
1177                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1178                         fi
1179                         ;;
1180
1181                 xboehm|xbohem|xyes)
1182                         AC_MSG_WARN("External Boehm is no longer supported")
1183                         ;;
1184
1185                 xsgen)
1186                         AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1187                         ;;
1188
1189                 xnone)
1190                         AC_MSG_WARN("Compiling mono without GC.")
1191                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1192                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1193                         gc_msg="none"
1194                         ;;
1195                 *)
1196                         AC_MSG_ERROR([Invalid argument to --with-gc.])
1197                         ;;
1198         esac
1199
1200         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1201         if test "x$large_heap" = "xyes"; then
1202            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1203         fi
1204
1205         AC_SUBST(LIBGC_CPPFLAGS)
1206         AC_SUBST(LIBGC_LIBS)
1207         AC_SUBST(LIBGC_STATIC_LIBS)
1208         AC_SUBST(libgc_dir)
1209         AC_SUBST(BOEHM_DEFINES)
1210
1211 fi
1212
1213 dnl
1214 dnl End of Boehm GC Configuration
1215 dnl
1216
1217 dnl *************************************
1218 dnl *** Checks for zero length arrays ***
1219 dnl *************************************
1220 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1221 AC_TRY_COMPILE([
1222         struct s {
1223                 int  length;
1224                 char data [0];
1225         };
1226 ], [], [
1227         AC_MSG_RESULT(yes)
1228         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1229 ], [
1230         AC_MSG_RESULT(no)
1231         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1232 ])
1233
1234 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1235
1236 dnl ***********************************
1237 dnl *** Checks for signals
1238 dnl ***********************************
1239 AC_CHECK_HEADERS(signal.h)
1240 AC_CHECK_FUNCS(sigaction)
1241 AC_CHECK_FUNCS(kill)
1242 AC_CHECK_FUNCS(signal)
1243
1244 # signal() is declared inline in Android headers
1245 # so we need to workaround it by overriding the check.
1246 if test x$platform_android = xyes; then
1247         AC_DEFINE(HAVE_SIGNAL,1)
1248 fi
1249
1250 if test x$host_win32 = xno; then
1251
1252         dnl hires monotonic clock support
1253         AC_SEARCH_LIBS(clock_gettime, rt)
1254         AC_CHECK_FUNCS(clock_nanosleep)
1255
1256         dnl dynamic loader support
1257         AC_CHECK_FUNC(dlopen, DL_LIB="",
1258                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1259         )
1260         if test x$dl_support = xno; then
1261                 AC_MSG_WARN([No dynamic loading support available])
1262         else
1263                 LIBS="$LIBS $DL_LIB"
1264                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1265                 dnl from glib's configure.ac
1266                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1267                         mono_cv_uscore,[
1268                         AC_TRY_RUN([#include <dlfcn.h>
1269                         int mono_underscore_test (void) { return 42; }
1270                         int main() {
1271                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1272                           handle = dlopen ((void*)0, 0);
1273                           if (handle) {
1274                             f1 = dlsym (handle, "mono_underscore_test");
1275                             f2 = dlsym (handle, "_mono_underscore_test");
1276                           } return (!f2 || f1);
1277                         }],
1278                                 [mono_cv_uscore=yes],
1279                                 [mono_cv_uscore=no],
1280                         [])
1281                 ])
1282                 if test "x$mono_cv_uscore" = "xyes"; then
1283                         MONO_DL_NEED_USCORE=1
1284                 else
1285                         MONO_DL_NEED_USCORE=0
1286                 fi
1287                 AC_SUBST(MONO_DL_NEED_USCORE)
1288                 AC_CHECK_FUNC(dlerror)
1289         fi
1290
1291         dnl ******************************************************************
1292         dnl *** Checks for the IKVM JNI interface library                  ***
1293         dnl ******************************************************************
1294         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])
1295
1296         ikvm_native_dir=
1297         if test x$with_ikvm_native = xyes; then
1298                 ikvm_native_dir=ikvm-native
1299                 jdk_headers_found="IKVM Native"
1300         fi
1301
1302         AC_SUBST(ikvm_native_dir)
1303
1304         AC_CHECK_HEADERS(execinfo.h)
1305
1306         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1307
1308         AC_CHECK_FUNCS(getgrgid_r)
1309         AC_CHECK_FUNCS(getgrnam_r)
1310         AC_CHECK_FUNCS(getpwnam_r)
1311         AC_CHECK_FUNCS(getpwuid_r)
1312         AC_CHECK_FUNCS(getresuid)
1313         AC_CHECK_FUNCS(setresuid)
1314         AC_CHECK_FUNCS(kqueue)
1315         AC_CHECK_FUNCS(backtrace_symbols)
1316         AC_CHECK_FUNCS(mkstemp)
1317         AC_CHECK_FUNCS(mmap)
1318         AC_CHECK_FUNCS(madvise)
1319         AC_CHECK_FUNCS(getrusage)
1320         AC_CHECK_FUNCS(getpriority)
1321         AC_CHECK_FUNCS(setpriority)
1322         AC_CHECK_FUNCS(dl_iterate_phdr)
1323         AC_CHECK_FUNCS(dladdr)
1324         AC_CHECK_FUNCS(sysconf)
1325         AC_CHECK_FUNCS(getrlimit)
1326         AC_CHECK_FUNCS(prctl)
1327
1328         AC_CHECK_FUNCS(sched_getaffinity)
1329         AC_CHECK_FUNCS(sched_setaffinity)
1330         AC_CHECK_FUNCS(sched_getcpu)
1331
1332         dnl ****************************************************************
1333         dnl *** Check for sched_setaffinity from glibc versions before   ***
1334         dnl *** 2.3.4. The older versions of the function only take 2    ***
1335         dnl *** parameters, not 3.                                       ***
1336         dnl ***                                                          ***
1337         dnl *** Because the interface change was not made in a minor     ***
1338         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1339         dnl *** won't always indicate the interface sched_affinity has.  ***
1340         dnl ****************************************************************
1341         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1342         AC_TRY_COMPILE([#include <sched.h>], [
1343             int mask = 1; 
1344             sched_setaffinity(0, &mask);
1345                         return 0;
1346         ], [
1347                 # Yes, we have it...
1348                 AC_MSG_RESULT(yes)
1349                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1350         ], [
1351                 # We have the new, three-parameter version
1352                 AC_MSG_RESULT(no)
1353         ])
1354
1355
1356         dnl ******************************************************************
1357         dnl *** Check for large file support                               ***
1358         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1359         dnl ******************************************************************
1360         
1361         # Check that off_t can represent 2**63 - 1 correctly, working around
1362         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1363         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1364         large_offt=no
1365         AC_DEFUN([LARGE_FILES], [
1366                 large_CPPFLAGS=$CPPFLAGS
1367                 CPPFLAGS="$CPPFLAGS $1"
1368                 AC_TRY_COMPILE([
1369                         #include <sys/types.h>
1370                         #include <limits.h>
1371                 ], [
1372                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1373                         #define COMPILE_TIME_ASSERT(pred) \
1374                                 switch(0){case 0:case pred:;}
1375                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1376                 ], [
1377                         AC_MSG_RESULT(ok)
1378                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1379                         large_CPPFLAGS="$large_CPPFLAGS $1"
1380                         large_offt=yes
1381                 ], [
1382                         AC_MSG_RESULT(no)
1383                 ])
1384                 CPPFLAGS=$large_CPPFLAGS
1385         ])
1386
1387         AC_MSG_CHECKING(if off_t is 64 bits wide)
1388         LARGE_FILES("")
1389         if test $large_offt = no; then
1390                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1391                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1392         fi
1393         if test $large_offt = no; then
1394                 AC_MSG_WARN([No 64 bit file size support available])
1395         fi
1396         
1397         dnl *****************************
1398         dnl *** Checks for libsocket  ***
1399         dnl *****************************
1400         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1401
1402         case "$host" in
1403                 *-*-*freebsd*)
1404                         dnl *****************************
1405                         dnl *** Checks for libinotify ***
1406                         dnl *****************************
1407                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1408         esac
1409
1410         dnl *******************************
1411         dnl *** Checks for MSG_NOSIGNAL ***
1412         dnl *******************************
1413         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1414         AC_TRY_COMPILE([#include <sys/socket.h>], [
1415                 int f = MSG_NOSIGNAL;
1416         ], [
1417                 # Yes, we have it...
1418                 AC_MSG_RESULT(yes)
1419                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1420         ], [
1421                 # We'll have to use signals
1422                 AC_MSG_RESULT(no)
1423         ])
1424
1425         dnl *****************************
1426         dnl *** Checks for IPPROTO_IP ***
1427         dnl *****************************
1428         AC_MSG_CHECKING(for IPPROTO_IP)
1429         AC_TRY_COMPILE([#include <netinet/in.h>], [
1430                 int level = IPPROTO_IP;
1431         ], [
1432                 # Yes, we have it...
1433                 AC_MSG_RESULT(yes)
1434                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1435         ], [
1436                 # We'll have to use getprotobyname
1437                 AC_MSG_RESULT(no)
1438         ])
1439
1440         dnl *******************************
1441         dnl *** Checks for IPPROTO_IPV6 ***
1442         dnl *******************************
1443         AC_MSG_CHECKING(for IPPROTO_IPV6)
1444         AC_TRY_COMPILE([#include <netinet/in.h>], [
1445                 int level = IPPROTO_IPV6;
1446         ], [
1447                 # Yes, we have it...
1448                 AC_MSG_RESULT(yes)
1449                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1450         ], [
1451                 # We'll have to use getprotobyname
1452                 AC_MSG_RESULT(no)
1453         ])
1454
1455         dnl ******************************
1456         dnl *** Checks for IPPROTO_TCP ***
1457         dnl ******************************
1458         AC_MSG_CHECKING(for IPPROTO_TCP)
1459         AC_TRY_COMPILE([#include <netinet/in.h>], [
1460                 int level = IPPROTO_TCP;
1461         ], [
1462                 # Yes, we have it...
1463                 AC_MSG_RESULT(yes)
1464                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1465         ], [
1466                 # We'll have to use getprotobyname
1467                 AC_MSG_RESULT(no)
1468         ])
1469
1470         dnl *****************************
1471         dnl *** Checks for SOL_IP     ***
1472         dnl *****************************
1473         AC_MSG_CHECKING(for SOL_IP)
1474         AC_TRY_COMPILE([#include <netdb.h>], [
1475                 int level = SOL_IP;
1476         ], [
1477                 # Yes, we have it...
1478                 AC_MSG_RESULT(yes)
1479                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1480         ], [
1481                 # We'll have to use getprotobyname
1482                 AC_MSG_RESULT(no)
1483         ])
1484
1485         dnl *****************************
1486         dnl *** Checks for SOL_IPV6     ***
1487         dnl *****************************
1488         AC_MSG_CHECKING(for SOL_IPV6)
1489         AC_TRY_COMPILE([#include <netdb.h>], [
1490                 int level = SOL_IPV6;
1491         ], [
1492                 # Yes, we have it...
1493                 AC_MSG_RESULT(yes)
1494                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1495         ], [
1496                 # We'll have to use getprotobyname
1497                 AC_MSG_RESULT(no)
1498         ])
1499
1500         dnl *****************************
1501         dnl *** Checks for SOL_TCP    ***
1502         dnl *****************************
1503         AC_MSG_CHECKING(for SOL_TCP)
1504         AC_TRY_COMPILE([#include <netdb.h>], [
1505                 int level = SOL_TCP;
1506         ], [
1507                 # Yes, we have it...
1508                 AC_MSG_RESULT(yes)
1509                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1510         ], [
1511                 # We'll have to use getprotobyname
1512                 AC_MSG_RESULT(no)
1513         ])
1514
1515         dnl *****************************
1516         dnl *** Checks for IP_PKTINFO ***
1517         dnl *****************************
1518         AC_MSG_CHECKING(for IP_PKTINFO)
1519         AC_TRY_COMPILE([#include <linux/in.h>], [
1520                 int level = IP_PKTINFO;
1521         ], [
1522                 # Yes, we have it...
1523                 AC_MSG_RESULT(yes)
1524                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1525         ], [
1526                 AC_MSG_RESULT(no)
1527         ])
1528
1529         dnl *****************************
1530         dnl *** Checks for IPV6_PKTINFO ***
1531         dnl *****************************
1532         AC_MSG_CHECKING(for IPV6_PKTINFO)
1533         AC_TRY_COMPILE([#include <netdb.h>], [
1534                 int level = IPV6_PKTINFO;
1535         ], [
1536                 # Yes, we have it...
1537                 AC_MSG_RESULT(yes)
1538                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1539         ], [
1540                 AC_MSG_RESULT(no)
1541         ])
1542
1543         dnl **********************************
1544         dnl *** Checks for IP_DONTFRAG     ***
1545         dnl **********************************
1546         AC_MSG_CHECKING(for IP_DONTFRAG)
1547         AC_TRY_COMPILE([#include <netinet/in.h>], [
1548                 int level = IP_DONTFRAG;
1549         ], [
1550                 # Yes, we have it...
1551                 AC_MSG_RESULT(yes)
1552                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1553         ], [
1554                 AC_MSG_RESULT(no)
1555         ])
1556
1557         dnl **********************************
1558         dnl *** Checks for IP_DONTFRAGMENT ***
1559         dnl **********************************
1560         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1561         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1562                 int level = IP_DONTFRAGMENT;
1563         ], [
1564                 # Yes, we have it...
1565                 AC_MSG_RESULT(yes)
1566                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1567         ], [
1568                 AC_MSG_RESULT(no)
1569         ])
1570
1571         dnl **********************************
1572         dnl *** Checks for IP_MTU_DISCOVER ***
1573         dnl **********************************
1574         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1575         AC_TRY_COMPILE([#include <linux/in.h>], [
1576                 int level = IP_MTU_DISCOVER;
1577         ], [
1578                 # Yes, we have it...
1579                 AC_MSG_RESULT(yes)
1580                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1581         ], [
1582                 AC_MSG_RESULT(no)
1583         ])
1584
1585         dnl **********************************
1586         dnl *** Checks for  IP_PMTUDISC_DO ***
1587         dnl **********************************
1588         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1589         AC_TRY_COMPILE([#include <linux/in.h>], [
1590                 int level = IP_PMTUDISC_DO;
1591         ], [
1592                 # Yes, we have it...
1593                 AC_MSG_RESULT(yes)
1594                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1595         ], [
1596                 AC_MSG_RESULT(no)
1597         ])
1598
1599         dnl *********************************
1600         dnl *** Check for struct ip_mreqn ***
1601         dnl *********************************
1602         AC_MSG_CHECKING(for struct ip_mreqn)
1603         AC_TRY_COMPILE([#include <netinet/in.h>], [
1604                 struct ip_mreqn mreq;
1605                 mreq.imr_address.s_addr = 0;
1606         ], [
1607                 # Yes, we have it...
1608                 AC_MSG_RESULT(yes)
1609                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1610         ], [
1611                 # We'll just have to try and use struct ip_mreq
1612                 AC_MSG_RESULT(no)
1613                 AC_MSG_CHECKING(for struct ip_mreq)
1614                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1615                         struct ip_mreq mreq;
1616                         mreq.imr_interface.s_addr = 0;
1617                 ], [
1618                         # Yes, we have it...
1619                         AC_MSG_RESULT(yes)
1620                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1621                 ], [
1622                         # No multicast support
1623                         AC_MSG_RESULT(no)
1624                 ])
1625         ])
1626         
1627         dnl **********************************
1628         dnl *** Check for getaddrinfo ***
1629         dnl **********************************
1630         AC_MSG_CHECKING(for getaddrinfo)
1631                 AC_TRY_LINK([
1632                 #include <stdio.h>
1633                 #include <netdb.h>
1634         ], [
1635                 getaddrinfo(NULL,NULL,NULL,NULL);
1636         ], [
1637                 # Yes, we have it...
1638                 AC_MSG_RESULT(yes)
1639                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
1640         ], [
1641                 AC_MSG_RESULT(no)
1642         ])
1643
1644         dnl **********************************
1645         dnl *** Check for gethostbyname2_r ***
1646         dnl **********************************
1647         AC_MSG_CHECKING(for gethostbyname2_r)
1648                 AC_TRY_LINK([
1649                 #include <stdio.h>
1650                 #include <netdb.h>
1651         ], [
1652
1653                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1654         ], [
1655                 # Yes, we have it...
1656                 AC_MSG_RESULT(yes)
1657                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1658         ], [
1659                 AC_MSG_RESULT(no)
1660         ])
1661
1662         dnl **********************************
1663         dnl *** Check for gethostbyname2 ***
1664         dnl **********************************
1665         AC_MSG_CHECKING(for gethostbyname2)
1666                 AC_TRY_LINK([
1667                 #include <stdio.h>
1668                 #include <netdb.h>
1669         ], [
1670                 gethostbyname2(NULL,0);
1671         ], [
1672                 # Yes, we have it...
1673                 AC_MSG_RESULT(yes)
1674                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
1675         ], [
1676                 AC_MSG_RESULT(no)
1677         ])
1678
1679         dnl **********************************
1680         dnl *** Check for gethostbyname ***
1681         dnl **********************************
1682         AC_MSG_CHECKING(for gethostbyname)
1683                 AC_TRY_LINK([
1684                 #include <stdio.h>
1685                 #include <netdb.h>
1686         ], [
1687                 gethostbyname(NULL);
1688         ], [
1689                 # Yes, we have it...
1690                 AC_MSG_RESULT(yes)
1691                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
1692         ], [
1693                 AC_MSG_RESULT(no)
1694         ])
1695
1696         dnl **********************************
1697         dnl *** Check for getprotobyname ***
1698         dnl **********************************
1699         AC_MSG_CHECKING(for getprotobyname)
1700                 AC_TRY_LINK([
1701                 #include <stdio.h>
1702                 #include <netdb.h>
1703         ], [
1704                 getprotobyname(NULL);
1705         ], [
1706                 # Yes, we have it...
1707                 AC_MSG_RESULT(yes)
1708                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
1709         ], [
1710                 AC_MSG_RESULT(no)
1711         ])
1712
1713         dnl **********************************
1714         dnl *** Check for getnameinfo ***
1715         dnl **********************************
1716         AC_MSG_CHECKING(for getnameinfo)
1717                 AC_TRY_LINK([
1718                 #include <stdio.h>
1719                 #include <netdb.h>
1720         ], [
1721                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
1722         ], [
1723                 # Yes, we have it...
1724                 AC_MSG_RESULT(yes)
1725                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
1726         ], [
1727                 AC_MSG_RESULT(no)
1728         ])
1729
1730
1731         dnl **********************************
1732         dnl *** Check for inet_ntop ***
1733         dnl **********************************
1734         AC_MSG_CHECKING(for inet_ntop)
1735                 AC_TRY_LINK([
1736                 #include <stdio.h>
1737                 #include <arpa/inet.h>
1738         ], [
1739                 inet_ntop (0, NULL, NULL, 0);
1740         ], [
1741                 # Yes, we have it...
1742                 AC_MSG_RESULT(yes)
1743                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
1744         ], [
1745                 AC_MSG_RESULT(no)
1746         ])
1747
1748         dnl *****************************
1749         dnl *** Checks for libnsl     ***
1750         dnl *****************************
1751         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1752
1753         AC_CHECK_FUNCS(inet_pton inet_aton)
1754
1755         dnl *****************************
1756         dnl *** Checks for libxnet    ***
1757         dnl *****************************
1758         case "${host}" in
1759                 *solaris* )
1760                         AC_MSG_CHECKING(for Solaris XPG4 support)
1761                         if test -f /usr/lib/libxnet.so; then
1762                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1763                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1764                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1765                                 LIBS="$LIBS -lxnet"
1766                                 AC_MSG_RESULT(yes)
1767                         else
1768                                 AC_MSG_RESULT(no)
1769                         fi
1770
1771                         if test "$GCC" = "yes"; then
1772                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1773                         fi
1774                 ;;
1775         esac
1776
1777         dnl *****************************
1778         dnl *** Checks for libpthread ***
1779         dnl *****************************
1780 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1781 # and libpthread does not exist
1782 #
1783         case "${host}" in
1784                 *-*-*freebsd*)
1785                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1786                 ;;
1787                 *-*-*openbsd*)
1788                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1789                 ;;
1790                 *)
1791                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1792                 ;;
1793         esac
1794         AC_CHECK_HEADERS(pthread.h)
1795         AC_CHECK_HEADERS(pthread_np.h)
1796         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1797         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1798         AC_CHECK_FUNCS(pthread_kill)
1799         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1800         AC_TRY_COMPILE([ #include <pthread.h>], [
1801                 pthread_mutexattr_t attr;
1802                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1803         ], [
1804                 AC_MSG_RESULT(ok)
1805         ], [
1806                 AC_MSG_RESULT(no)
1807                 AC_ERROR(Posix system lacks support for recursive mutexes)
1808         ])
1809         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1810         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1811         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1812
1813         dnl **********************************
1814         dnl *** Check for mincore ***
1815         dnl **********************************
1816         AC_MSG_CHECKING(for mincore)
1817                 AC_TRY_LINK([
1818                 #include <stdio.h>
1819                 #include <sys/types.h>
1820                 #include <sys/mman.h>
1821         ], [
1822                 mincore(NULL, 0, NULL);
1823         ], [
1824                 # Yes, we have it...
1825                 AC_MSG_RESULT(yes)
1826                 AC_DEFINE(HAVE_MINCORE, 1, [Have mincore])
1827         ], [
1828                 AC_MSG_RESULT(no)
1829         ])
1830
1831         dnl ***********************************
1832         dnl *** Checks for working __thread ***
1833         dnl ***********************************
1834         AC_MSG_CHECKING(for working __thread)
1835         if test "x$with_tls" != "x__thread"; then
1836                 AC_MSG_RESULT(disabled)
1837         elif test "x$cross_compiling" = "xyes"; then
1838                 AC_MSG_RESULT(cross compiling, assuming yes)
1839         else
1840                 AC_TRY_RUN([
1841                         #if defined(__APPLE__) && defined(__clang__)
1842                         #error "__thread does not currently work with clang on Mac OS X"
1843                         #endif
1844                         
1845                         #include <pthread.h>
1846                         __thread int i;
1847                         static int res1, res2;
1848
1849                         void thread_main (void *arg)
1850                         {
1851                                 i = arg;
1852                                 sleep (1);
1853                                 if (arg == 1)
1854                                         res1 = (i == arg);
1855                                 else
1856                                         res2 = (i == arg);
1857                         }
1858
1859                         int main () {
1860                                 pthread_t t1, t2;
1861
1862                                 i = 5;
1863
1864                                 pthread_create (&t1, NULL, thread_main, 1);
1865                                 pthread_create (&t2, NULL, thread_main, 2);
1866
1867                                 pthread_join (t1, NULL);
1868                                 pthread_join (t2, NULL);
1869
1870                                 return !(res1 + res2 == 2);
1871                         }
1872                 ], [
1873                                 AC_MSG_RESULT(yes)
1874                 ], [
1875                                 AC_MSG_RESULT(no)
1876                                 with_tls=pthread
1877                 ])
1878         fi
1879
1880         dnl **************************************
1881         dnl *** Checks for working sigaltstack ***
1882         dnl **************************************
1883         AC_MSG_CHECKING(for working sigaltstack)
1884         if test "x$with_sigaltstack" != "xyes"; then
1885                 AC_MSG_RESULT(disabled)
1886         elif test "x$cross_compiling" = "xyes"; then
1887                 AC_MSG_RESULT(cross compiling, assuming yes)
1888         else
1889                 AC_TRY_RUN([
1890                         #include <stdio.h>
1891                         #include <stdlib.h>
1892                         #include <unistd.h>
1893                         #include <signal.h>
1894                         #include <pthread.h>
1895                         #include <sys/wait.h>
1896                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1897                         #define SA_STACK SA_ONSTACK
1898                         #endif
1899                         static void
1900                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1901                         {
1902                                 exit (0);
1903                         }
1904
1905                         volatile char*__ptr = NULL;
1906                         static void *
1907                         loop (void *ignored)
1908                         {
1909                                 *__ptr = 0;
1910                                 return NULL;
1911                         }
1912
1913                         static void
1914                         child ()
1915                         {
1916                                 struct sigaction sa;
1917                         #ifdef __APPLE__
1918                                 stack_t sas;
1919                         #else
1920                                 struct sigaltstack sas;
1921                         #endif
1922                                 pthread_t id;
1923                                 pthread_attr_t attr;
1924
1925                                 sa.sa_sigaction = sigsegv_signal_handler;
1926                                 sigemptyset (&sa.sa_mask);
1927                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1928                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1929                                         perror ("sigaction");
1930                                         return;
1931                                 }
1932
1933                                 /* x86 darwin deliver segfaults using SIGBUS */
1934                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
1935                                         perror ("sigaction");
1936                                         return;
1937                                 }
1938                                 sas.ss_sp = malloc (SIGSTKSZ);
1939                                 sas.ss_size = SIGSTKSZ;
1940                                 sas.ss_flags = 0;
1941                                 if (sigaltstack (&sas, NULL) == -1) {
1942                                         perror ("sigaltstack");
1943                                         return;
1944                                 }
1945
1946                                 pthread_attr_init (&attr);
1947                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1948                                         printf ("pthread_create\n");
1949                                         return;
1950                                 }
1951
1952                                 sleep (100);
1953                         }
1954
1955                         int
1956                         main ()
1957                         {
1958                                 pid_t son;
1959                                 int status;
1960                                 int i;
1961
1962                                 son = fork ();
1963                                 if (son == -1) {
1964                                         return 1;
1965                                 }
1966
1967                                 if (son == 0) {
1968                                         child ();
1969                                         return 0;
1970                                 }
1971
1972                                 for (i = 0; i < 300; ++i) {
1973                                         waitpid (son, &status, WNOHANG);
1974                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
1975                                                 return 0;
1976                                         usleep (10000);
1977                                 }
1978
1979                                 kill (son, SIGKILL);
1980                                 return 1;
1981                         }
1982
1983                 ], [
1984                                 AC_MSG_RESULT(yes)
1985                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
1986                 ], [
1987                                 with_sigaltstack=no
1988                                 AC_MSG_RESULT(no)
1989                 ])
1990         fi
1991
1992         dnl ********************************
1993         dnl *** Checks for semaphore lib ***
1994         dnl ********************************
1995         # 'Real Time' functions on Solaris
1996         # posix4 on Solaris 2.6
1997         # pthread (first!) on Linux
1998         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
1999
2000         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
2001         AC_CHECK_FUNCS(shm_open)
2002
2003         dnl ********************************
2004         dnl *** Checks for timezone stuff **
2005         dnl ********************************
2006         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
2007                 AC_TRY_COMPILE([
2008                         #include <time.h>
2009                         ], [
2010                         struct tm tm;
2011                         tm.tm_gmtoff = 1;
2012                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
2013         if test $ac_cv_struct_tm_gmtoff = yes; then
2014                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
2015         else
2016                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
2017                         AC_TRY_COMPILE([
2018                                 #include <time.h>
2019                         ], [
2020                                 timezone = 1;
2021                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
2022                 if test $ac_cv_var_timezone = yes; then
2023                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
2024                 else
2025                         AC_ERROR(unable to find a way to determine timezone)
2026                 fi
2027         fi
2028
2029         dnl *********************************
2030         dnl *** Checks for math functions ***
2031         dnl *********************************
2032         AC_SEARCH_LIBS(sqrtf, m)
2033         if test "x$has_broken_apple_cpp" != "xyes"; then
2034                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
2035                         AC_TRY_LINK([#include <math.h>], 
2036                         [ finite(0.0); ], 
2037                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
2038                         AC_MSG_RESULT(no)))
2039         fi
2040         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
2041                 AC_TRY_LINK([#include <math.h>], 
2042                 [ isfinite(0.0); ], 
2043                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
2044                 AC_MSG_RESULT(no)))
2045
2046         dnl ****************************************************************
2047         dnl *** Checks for working poll() (macosx defines it but doesn't ***
2048         dnl *** have it in the library (duh))                            ***
2049         dnl ****************************************************************
2050         AC_CHECK_FUNCS(poll)
2051
2052         dnl *************************
2053         dnl *** Check for signbit ***
2054         dnl *************************
2055         AC_MSG_CHECKING(for signbit)
2056         AC_TRY_LINK([#include <math.h>], [
2057                 int s = signbit(1.0);
2058         ], [
2059                 AC_MSG_RESULT(yes)
2060                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
2061         ], [
2062                 AC_MSG_RESULT(no)
2063         ]) 
2064
2065         dnl **********************************
2066         dnl *** epoll                      ***
2067         dnl **********************************
2068         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
2069                 AC_CHECK_HEADERS(sys/epoll.h)
2070                 haveepoll=no
2071                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
2072                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
2073                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
2074                 fi
2075         fi
2076
2077         havekqueue=no
2078
2079         AC_CHECK_HEADERS(sys/event.h)
2080         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
2081
2082         dnl **************************************
2083         dnl * Darwin has a race that prevents us from using reliably:
2084         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
2085         dnl * Since kqueue is mostly used for scaling large web servers, 
2086         dnl * and very few folks run Mono on large web servers on OSX, falling
2087         dnl * back 
2088         dnl **************************************
2089         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
2090                 if test "x$host_darwin" = "xno"; then
2091                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
2092                 fi
2093         fi
2094
2095         dnl ******************************
2096         dnl *** Checks for SIOCGIFCONF ***
2097         dnl ******************************
2098         AC_CHECK_HEADERS(sys/ioctl.h)
2099         AC_CHECK_HEADERS(net/if.h, [], [],
2100            [
2101            #ifdef HAVE_SYS_TYPES_H
2102            # include <sys/types.h>
2103            #endif
2104            #ifdef HAVE_SYS_SOCKET_H
2105            # include <sys/socket.h>
2106            #endif
2107            ])
2108         AC_MSG_CHECKING(for ifreq)
2109         AC_TRY_COMPILE([
2110                 #include <stdio.h>
2111                 #include <sys/ioctl.h>
2112                 #include <net/if.h>
2113                 ], [
2114                 struct ifconf ifc;
2115                 struct ifreq *ifr;
2116                 void *x;
2117                 ifc.ifc_len = 0;
2118                 ifc.ifc_buf = NULL;
2119                 x = (void *) &ifr->ifr_addr;
2120                 ],[
2121                         AC_MSG_RESULT(yes)
2122                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
2123                 ], [
2124                         AC_MSG_RESULT(no)
2125                 ])
2126         dnl **********************************
2127         dnl ***     Checks for sin_len     ***
2128         dnl **********************************
2129         AC_MSG_CHECKING(for sockaddr_in.sin_len)
2130         AC_TRY_COMPILE([
2131                 #include <netinet/in.h>
2132                 ], [
2133                 struct sockaddr_in saddr;
2134                 saddr.sin_len = sizeof (saddr);
2135                 ],[
2136                         AC_MSG_RESULT(yes)
2137                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
2138                 ], [
2139                         AC_MSG_RESULT(no)
2140                 ])      
2141         dnl **********************************
2142         dnl ***    Checks for sin6_len     ***
2143         dnl **********************************
2144         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
2145         AC_TRY_COMPILE([
2146                 #include <netinet/in.h>
2147                 ], [
2148                 struct sockaddr_in6 saddr6;
2149                 saddr6.sin6_len = sizeof (saddr6);
2150                 ],[
2151                         AC_MSG_RESULT(yes)
2152                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
2153                 ], [
2154                         AC_MSG_RESULT(no)
2155                 ])
2156         dnl **********************************
2157         dnl *** Check for getifaddrs       ***
2158         dnl **********************************
2159         AC_MSG_CHECKING(for getifaddrs)
2160                 AC_TRY_LINK([
2161                 #include <stdio.h>
2162                 #include <sys/types.h>
2163                 #include <sys/socket.h>
2164                 #include <ifaddrs.h>
2165         ], [
2166                 getifaddrs(NULL);
2167         ], [
2168                 # Yes, we have it...
2169                 AC_MSG_RESULT(yes)
2170                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
2171         ], [
2172                 AC_MSG_RESULT(no)
2173         ])
2174         dnl **********************************
2175         dnl *** Check for if_nametoindex   ***
2176         dnl **********************************
2177         AC_MSG_CHECKING(for if_nametoindex)
2178                 AC_TRY_LINK([
2179                 #include <stdio.h>
2180                 #include <sys/types.h>
2181                 #include <sys/socket.h>
2182                 #include <net/if.h>
2183         ], [
2184                 if_nametoindex(NULL);
2185         ], [
2186                 # Yes, we have it...
2187                 AC_MSG_RESULT(yes)
2188                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
2189         ], [
2190                 AC_MSG_RESULT(no)
2191         ])
2192                         
2193         dnl **********************************
2194         dnl *** Checks for MonoPosixHelper ***
2195         dnl **********************************
2196         AC_CHECK_HEADERS(checklist.h)
2197         AC_CHECK_HEADERS(pathconf.h)
2198         AC_CHECK_HEADERS(fstab.h)
2199         AC_CHECK_HEADERS(attr/xattr.h)
2200         AC_CHECK_HEADERS(sys/extattr.h)
2201         AC_CHECK_HEADERS(sys/sendfile.h)
2202         AC_CHECK_HEADERS(sys/statvfs.h)
2203         AC_CHECK_HEADERS(sys/statfs.h)
2204         AC_CHECK_HEADERS(sys/vfstab.h)
2205         AC_CHECK_HEADERS(sys/xattr.h)
2206         AC_CHECK_HEADERS(sys/mman.h)
2207         AC_CHECK_HEADERS(sys/param.h)
2208         AC_CHECK_HEADERS(sys/mount.h, [], [],
2209                 [
2210                 #ifdef HAVE_SYS_PARAM_H
2211                 # include <sys/param.h>
2212                 #endif
2213                 ])
2214         AC_CHECK_HEADERS(sys/mount.h)
2215         AC_CHECK_FUNCS(confstr)
2216         AC_CHECK_FUNCS(seekdir telldir)
2217         AC_CHECK_FUNCS(getdomainname)
2218         AC_CHECK_FUNCS(setdomainname)
2219         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
2220         AC_CHECK_FUNCS(setgroups)
2221         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
2222         AC_CHECK_FUNCS(getfsstat)
2223         AC_CHECK_FUNCS(lutimes futimes)
2224         AC_CHECK_FUNCS(mremap)
2225         AC_CHECK_FUNCS(remap_file_pages)
2226         AC_CHECK_FUNCS(posix_fadvise)
2227         AC_CHECK_FUNCS(posix_fallocate)
2228         AC_CHECK_FUNCS(posix_madvise)
2229         AC_CHECK_FUNCS(vsnprintf)
2230         AC_CHECK_FUNCS(sendfile)
2231         AC_CHECK_FUNCS(gethostid sethostid)
2232         AC_CHECK_FUNCS(sethostname)
2233         AC_CHECK_FUNCS(statfs)
2234         AC_CHECK_FUNCS(fstatfs)
2235         AC_CHECK_FUNCS(statvfs)
2236         AC_CHECK_FUNCS(fstatvfs)
2237         AC_CHECK_FUNCS(stime)
2238         AC_CHECK_FUNCS(strerror_r)
2239         AC_CHECK_FUNCS(ttyname_r)
2240         AC_CHECK_FUNCS(psignal)
2241         AC_CHECK_FUNCS(getlogin_r)
2242         AC_CHECK_FUNCS(lockf)
2243         AC_CHECK_FUNCS(swab)
2244         AC_CHECK_FUNCS(setusershell endusershell)
2245         AC_CHECK_FUNCS(futimens utimensat)
2246         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2247         AC_CHECK_FUNCS(readv writev preadv pwritev)
2248         AC_CHECK_FUNCS(setpgid)
2249         AC_CHECK_FUNCS(system)
2250         AC_CHECK_FUNCS(fork execv execve)
2251         AC_CHECK_FUNCS(accept4)
2252         AC_CHECK_SIZEOF(size_t)
2253         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2254                 [#include <sys/types.h>
2255                  #include <sys/stat.h>
2256                  #include <unistd.h>])
2257         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2258                 [#include <sys/types.h>
2259                  #include <sys/stat.h>
2260                  #include <unistd.h>])
2261         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2262                 [#include <sys/time.h>])
2263         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
2264                 [#include <sys/socket.h>])
2265         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2266                 [#include <unistd.h>
2267                  #include <fcntl.h>])
2268         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2269                 [#include <sys/uio.h>])
2270         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
2271                 [#include <sys/socket.h>])
2272         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2273                 [#include <sys/poll.h>])
2274         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
2275                 [#include <sys/socket.h>])
2276         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
2277                 [#include <sys/socket.h>])
2278         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
2279                 [#include <netinet/in.h>])
2280         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
2281                 [#include <netinet/in.h>])
2282         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
2283                 [#include <sys/un.h>])
2284         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2285                 [#include <sys/types.h>
2286                  #include <sys/stat.h>
2287                  #include <unistd.h>])
2288         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2289                 [#include <time.h>])
2290         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2291                 [#include <sys/time.h>
2292                  #include <sys/types.h>
2293                  #include <utime.h>])
2294         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2295                 [#include <sys/time.h>])
2296         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2297                 [#include <sys/types.h>
2298                  #include <utime.h>])
2299         AC_CHECK_MEMBERS(
2300                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2301                 [#include <sys/types.h>
2302                  #include <dirent.h>])
2303         AC_CHECK_MEMBERS(
2304                 [struct passwd.pw_gecos],,, 
2305                 [#include <sys/types.h>
2306                  #include <pwd.h>])
2307         AC_CHECK_MEMBERS(
2308                 [struct statfs.f_flags],,, 
2309                 [#include <sys/types.h>
2310                  #include <sys/vfs.h>])
2311         AC_CHECK_MEMBERS(
2312                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2313                 [#include <sys/types.h>
2314                  #include <sys/stat.h>
2315                  #include <unistd.h>])
2316
2317         dnl Favour xattr through glibc, but use libattr if we have to
2318         AC_CHECK_FUNC(lsetxattr, ,
2319                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2320         )
2321         AC_SUBST(XATTR_LIB)
2322
2323         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2324         AC_CHECK_MEMBERS(
2325                 [struct kinfo_proc.kp_proc],,, 
2326                 [#include <sys/types.h>
2327                  #include <sys/param.h>
2328                  #include <sys/sysctl.h>
2329                  #include <sys/proc.h>
2330                  ])
2331
2332         dnl *********************************
2333         dnl *** Checks for Windows compilation ***
2334         dnl *********************************
2335         AC_CHECK_HEADERS(sys/time.h)
2336         AC_CHECK_HEADERS(sys/param.h)
2337         AC_CHECK_HEADERS(dirent.h)
2338
2339         dnl ******************************************
2340         dnl *** Checks for OSX and iOS compilation ***
2341         dnl ******************************************
2342         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2343
2344         dnl *********************************
2345         dnl *** Check for Console 2.0 I/O ***
2346         dnl *********************************
2347         AC_CHECK_HEADERS([curses.h])
2348         AC_CHECK_HEADERS([term.h], [], [],
2349         [#if HAVE_CURSES_H
2350          #include <curses.h>
2351          #endif
2352         ])
2353         AC_CHECK_HEADERS([termios.h])
2354 else
2355         dnl *********************************
2356         dnl *** Checks for Windows compilation ***
2357         dnl *********************************
2358         AC_CHECK_HEADERS(winternl.h)
2359
2360         jdk_headers_found=no
2361         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2362         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2363         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2364         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2365         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2366         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2367         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2368
2369         dnl *********************************
2370         dnl *** Check for struct ip_mreqn ***
2371         dnl *********************************
2372         AC_MSG_CHECKING(for struct ip_mreqn)
2373         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2374                 struct ip_mreqn mreq;
2375                 mreq.imr_address.s_addr = 0;
2376         ], [
2377                 # Yes, we have it...
2378                 AC_MSG_RESULT(yes)
2379                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2380         ], [
2381                 # We'll just have to try and use struct ip_mreq
2382                 AC_MSG_RESULT(no)
2383                 AC_MSG_CHECKING(for struct ip_mreq)
2384                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2385                         struct ip_mreq mreq;
2386                         mreq.imr_interface.s_addr = 0;
2387                 ], [
2388                         # Yes, we have it...
2389                         AC_MSG_RESULT(yes)
2390                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2391                 ], [
2392                         # No multicast support
2393                         AC_MSG_RESULT(no)
2394                 ])
2395         ])
2396
2397         dnl **********************************
2398         dnl *** Check for getaddrinfo ***
2399         dnl **********************************
2400         AC_MSG_CHECKING(for getaddrinfo)
2401                 AC_TRY_LINK([
2402                 #include <stdio.h>
2403                 #include <winsock2.h>
2404                 #include <ws2tcpip.h>
2405         ], [
2406                 getaddrinfo(NULL,NULL,NULL,NULL);
2407         ], [
2408                 # Yes, we have it...
2409                 AC_MSG_RESULT(yes)
2410                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2411         ], [
2412                 AC_MSG_RESULT(no)
2413         ])
2414
2415         dnl **********************************
2416         dnl *** Check for gethostbyname ***
2417         dnl **********************************
2418         AC_MSG_CHECKING(for gethostbyname)
2419                 AC_TRY_LINK([
2420                 #include <stdio.h>
2421                 #include <winsock2.h>
2422                 #include <ws2tcpip.h>
2423         ], [
2424                 gethostbyname(NULL);
2425         ], [
2426                 # Yes, we have it...
2427                 AC_MSG_RESULT(yes)
2428                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2429         ], [
2430                 AC_MSG_RESULT(no)
2431         ])
2432
2433         dnl **********************************
2434         dnl *** Check for getprotobyname ***
2435         dnl **********************************
2436         AC_MSG_CHECKING(for getprotobyname)
2437                 AC_TRY_LINK([
2438                 #include <stdio.h>
2439                 #include <winsock2.h>
2440                 #include <ws2tcpip.h>
2441         ], [
2442                 getprotobyname(NULL);
2443         ], [
2444                 # Yes, we have it...
2445                 AC_MSG_RESULT(yes)
2446                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2447         ], [
2448                 AC_MSG_RESULT(no)
2449         ])
2450
2451         dnl **********************************
2452         dnl *** Check for getnameinfo ***
2453         dnl **********************************
2454         AC_MSG_CHECKING(for getnameinfo)
2455                 AC_TRY_LINK([
2456                 #include <stdio.h>
2457                 #include <winsock2.h>
2458                 #include <ws2tcpip.h>
2459         ], [
2460                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2461         ], [
2462                 # Yes, we have it...
2463                 AC_MSG_RESULT(yes)
2464                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2465         ], [
2466                 AC_MSG_RESULT(no)
2467         ])
2468
2469         dnl **********************************
2470         dnl *** Check for inet_ntop ***
2471         dnl **********************************
2472         AC_MSG_CHECKING(for inet_ntop)
2473                 AC_TRY_LINK([
2474                 #include <stdio.h>
2475                 #include <winsock2.h>
2476                 #include <ws2tcpip.h>
2477         ], [
2478                 inet_ntop (0, NULL, NULL, 0);
2479         ], [
2480                 # Yes, we have it...
2481                 AC_MSG_RESULT(yes)
2482                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2483         ], [
2484                 AC_MSG_RESULT(no)
2485         ])
2486
2487         dnl **********************************
2488         dnl *** Check for inet_pton ***
2489         dnl **********************************
2490         AC_MSG_CHECKING(for inet_pton)
2491                 AC_TRY_LINK([
2492                 #include <stdio.h>
2493                 #include <winsock2.h>
2494                 #include <ws2tcpip.h>
2495         ], [
2496                 #ifndef inet_pton
2497                 (void) inet_pton;
2498                 #endif
2499                 inet_pton (0, NULL, NULL);
2500         ], [
2501                 # Yes, we have it...
2502                 AC_MSG_RESULT(yes)
2503                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
2504         ], [
2505                 AC_MSG_RESULT(no)
2506         ])
2507
2508         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2509         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2510         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2511         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2512         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2513         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2514         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2515 fi
2516
2517 dnl socklen_t check
2518 AC_MSG_CHECKING(for socklen_t)
2519 AC_TRY_COMPILE([
2520 #include <sys/types.h>
2521 #include <sys/socket.h>
2522 ],[
2523   socklen_t foo;
2524 ],[
2525 ac_cv_c_socklen_t=yes
2526         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2527         AC_MSG_RESULT(yes)
2528 ],[
2529         AC_MSG_RESULT(no)
2530 ])
2531
2532 AC_MSG_CHECKING(for array element initializer support)
2533 AC_TRY_COMPILE([#include <sys/socket.h>], [
2534         const int array[] = {[1] = 2,};
2535 ], [
2536         # Yes, we have it...
2537         AC_MSG_RESULT(yes)
2538         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2539 ], [
2540         # We'll have to use signals
2541         AC_MSG_RESULT(no)
2542 ])
2543
2544 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2545         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2546         AC_TRY_LINK([#include <math.h>], 
2547         [ static void *p = &trunc; ],
2548         [
2549                 AC_DEFINE(HAVE_TRUNC) 
2550                 AC_MSG_RESULT(yes)
2551                 ac_cv_trunc=yes
2552         ],
2553         AC_MSG_RESULT(no)))
2554
2555 if test "x$ac_cv_truncl" != "xyes"; then
2556    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2557 fi
2558
2559 AC_CHECK_FUNCS(execvp)
2560
2561 dnl ****************************
2562 dnl *** Look for /dev/random ***
2563 dnl ****************************
2564
2565 AC_MSG_CHECKING([if usage of random device is requested])
2566 AC_ARG_ENABLE(dev-random,
2567 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2568 try_dev_random=$enableval, try_dev_random=yes)
2569
2570 AC_MSG_RESULT($try_dev_random)
2571
2572 case "{$build}" in
2573     *-openbsd*)
2574     NAME_DEV_RANDOM="/dev/srandom"
2575     ;;
2576
2577 dnl Win32 does not have /dev/random, they have their own method...
2578
2579     *-mingw*|*-*-cygwin*)
2580     ac_cv_have_dev_random=no
2581     ;;
2582
2583 dnl Everywhere else, it's /dev/random
2584
2585     *)
2586     NAME_DEV_RANDOM="/dev/random"
2587     ;;
2588 esac
2589
2590 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2591
2592 dnl Now check if the device actually exists
2593
2594 if test "x$try_dev_random" = "xyes"; then
2595     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2596     [if test -r "$NAME_DEV_RANDOM" ; then
2597         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2598     if test "x$ac_cv_have_dev_random" = "xyes"; then
2599         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2600     fi
2601 else
2602     AC_MSG_CHECKING(for random device)
2603     ac_cv_have_dev_random=no
2604     AC_MSG_RESULT(has been disabled)
2605 fi
2606
2607 if test "x$host_win32" = "xyes"; then
2608     AC_DEFINE(HAVE_CRYPT_RNG)
2609 fi
2610
2611 if test "x$ac_cv_have_dev_random" = "xno" \
2612     && test "x$host_win32" = "xno"; then
2613     AC_MSG_WARN([[
2614 ***
2615 *** A system-provided entropy source was not found on this system.
2616 *** Because of this, the System.Security.Cryptography random number generator
2617 *** will throw a NotImplemented exception.
2618 ***
2619 *** If you are seeing this message, and you know your system DOES have an
2620 *** entropy collection in place, please contact <crichton@gimp.org> and
2621 *** provide information about the system and how to access the random device.
2622 ***
2623 *** Otherwise you can install either egd or prngd and set the environment
2624 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2625 ***]])
2626 fi
2627
2628 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2629
2630 AC_ARG_ENABLE(perf-events, [  --enable-perf-events Enable using `perf` for profiling on Linux], test_perf_events=$enableval, test_perf_events=no)
2631 if test "x$test_perf_events" = "xyes"; then
2632         AC_DEFINE(ENABLE_PERF_EVENTS, 1, [Enable using `perf` for profiling on Linux])
2633         AC_SUBST(ENABLE_PERF_EVENTS)
2634 fi
2635
2636 AC_MSG_CHECKING([if big-arrays are to be enabled])
2637 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2638 if test "x$enable_big_arrays" = "xyes" ; then
2639     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2640         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2641     else
2642         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2643     fi
2644 fi
2645 AC_MSG_RESULT($enable_big_arrays)
2646
2647 dnl **************
2648 dnl *** DTRACE ***
2649 dnl **************
2650
2651 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2652
2653 if test "x$enable_dtrace" = "xyes"; then
2654    if test "x$has_dtrace" = "xno"; then
2655           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2656    fi
2657    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2658    if test "x$DTRACE" = "xno"; then
2659           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2660           enable_dtrace=no
2661    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2662           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2663           enable_dtrace=no
2664    fi
2665 fi
2666
2667 dtrace_g=no
2668 if test "x$enable_dtrace" = "xyes"; then
2669         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2670         DTRACEFLAGS=
2671         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2672                 case "$host" in
2673                         powerpc-*-darwin*)
2674                         DTRACEFLAGS="-arch ppc64"
2675                         ;;
2676                         i*86-*-darwin*)
2677                         DTRACEFLAGS="-arch x86_64"
2678                         ;;
2679                         *)
2680                         DTRACEFLAGS=-64
2681                         ;;
2682                 esac
2683         else
2684                 case "$host" in
2685                         powerpc-*-darwin*)
2686                         DTRACEFLAGS="-arch ppc"
2687                         ;;
2688                         i*86-*-darwin*)
2689                         DTRACEFLAGS="-arch i386"
2690                         ;;
2691                         *)
2692                         DTRACEFLAGS=-32
2693                         ;;
2694                 esac
2695         fi
2696         AC_SUBST(DTRACEFLAGS)
2697         case "$host" in
2698                 *-*-solaris*)
2699                 dtrace_g=yes
2700                 ;;
2701         esac
2702         AC_CHECK_HEADERS([sys/sdt.h])
2703 fi
2704 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2705 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2706
2707 dnl **************
2708 dnl ***  NaCl  ***
2709 dnl **************
2710
2711 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2712 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2713
2714 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2715
2716 dnl
2717 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2718 dnl
2719 nacl_self_host=""
2720 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2721    nacl_self_host="nacl_self_host"
2722 fi
2723 AC_SUBST(nacl_self_host)
2724
2725 if test "x$enable_nacl_codegen" = "xyes"; then
2726    MONO_NACL_ALIGN_MASK_OFF=1
2727    AC_DEFINE(TARGET_NACL, 1, [...])
2728    AC_DEFINE(__native_client_codegen__, 1, [...])
2729 fi
2730 if test "x$enable_nacl_gc" = "xyes"; then
2731    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2732       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2733    else
2734       # Not yet implemented
2735       INSTRUMENT_CFLAG=""
2736    fi
2737    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2738 fi
2739 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2740
2741 dnl **************************
2742 dnl *** AOT cross offsets  ***
2743 dnl **************************
2744
2745 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
2746     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
2747
2748 dnl **************
2749 dnl ***  LLVM  ***
2750 dnl **************
2751
2752 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=default)
2753 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2754 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2755 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
2756
2757 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2758
2759 if test "x$enable_llvm" = "xdefault"; then
2760    enable_llvm=$enable_llvm_default
2761 fi
2762
2763 if test "x$enable_llvm" = "xyes"; then
2764    if test "x$with_llvm" != "x"; then
2765           LLVM_CONFIG=$with_llvm/bin/llvm-config
2766           if test x$host_win32 = xyes; then
2767                 LLVM_CONFIG=$LLVM_CONFIG.exe
2768           fi
2769           if test ! -x $LLVM_CONFIG; then
2770                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2771       fi
2772    else
2773       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2774       if test "x$LLVM_CONFIG" = "xno"; then
2775              AC_MSG_ERROR([llvm-config not found.])
2776       fi
2777    fi
2778
2779    llvm_codegen="x86codegen"
2780    case "$target" in
2781    arm*)
2782                 llvm_codegen="armcodegen"
2783                 ;;
2784    esac
2785
2786    if test "x$host_win32" = "xno"; then
2787
2788    # Should be something like '2.6' or '2.7svn'
2789    llvm_version=`$LLVM_CONFIG --version`
2790    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2791    AC_MSG_CHECKING(LLVM version)
2792    AC_MSG_RESULT($llvm_version $llvm_api_version)
2793    if echo $llvm_version | grep -q 'mono'; then
2794           if test "x$enable_llvm_version_check" = "xyes"; then
2795                  if test "$llvm_version" != "$expected_llvm_version"; then
2796                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2797                  fi
2798           fi
2799    else
2800           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.])
2801    fi
2802
2803    # The output of --cflags seems to include optimizations flags too
2804    if test $llvm_api_version -gt 100; then
2805           # The --cflags argument includes all kinds of warnings -pendantic etc.
2806           LLVM_CFLAGS="-I$with_llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2807           LLVM_CXXFLAGS="-I$with_llvm/include -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2808    else
2809           LLVM_CFLAGS=`$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'`
2810       LLVM_CXXFLAGS=`$LLVM_CONFIG --cxxflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2811    fi
2812    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2813    # from LLVM classes.
2814    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -fno-rtti -fexceptions"
2815    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2816    # This might include empty lines
2817    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2818    llvm_jit_supported=yes
2819    llvm_jit_libs="jit mcjit $llvm_codegen"
2820    if test $llvm_api_version -gt 100; then
2821           # Based on llvm 3.9, only aot is currently supported
2822       llvm_jit_libs="orcjit $llvm_codegen"
2823    elif test "x$host" != "x$target"; then
2824       # No need for jit libs
2825           llvm_jit_supported=no
2826       llvm_jit_libs=""
2827    fi
2828    LLVM_LIBS=`$LLVM_CONFIG --libs analysis core bitwriter $llvm_jit_libs`
2829    if test "x$LLVM_LIBS" = "x"; then
2830           echo "$LLVM_CONFIG --libs failed."
2831           exit 1
2832    fi
2833    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS"
2834    # The c++ standard library used by llvm doesn't show up in $LLVM_SYSTEM_LIBS so add it manually
2835    if echo $LLVM_CXXFLAGS | grep -q -- '-stdlib=libc++'; then
2836       LLVM_LIBS="$LLVM_LIBS -lc++"
2837    else
2838       LLVM_LIBS="$LLVM_LIBS -lstdc++"
2839    fi
2840
2841    expected_llvm_version="3.4svn-mono-mono/e656cac"
2842
2843    else
2844        LLVM_CFLAGS="-I$with_llvm/include -DNDEBUG -D__NO_CTYPE_INLINE -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2845        LLVM_CXXFLAGS="$LLVM_CFLAGS -std=gnu++11 -fvisibility-inlines-hidden -fno-rtti -Woverloaded-virtual -Wcast-qual"
2846        LLVM_LDFLAGS="-L$with_llvm/lib"
2847        LLVM_SYSTEM_LIBS="-lshell32 -lpsapi -limagehlp -ldbghelp -lm"
2848        LLVM_LIBS="-lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter \
2849          -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo \
2850          -lLLVMARMAsmPrinter -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler \
2851          -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc \
2852          -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT \
2853          -lLLVMAnalysis -lLLVMTarget \
2854          -lLLVMIRReader -lLLVMAsmParser -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation \
2855          -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils \
2856          -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld \
2857          -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore \
2858          -lLLVMSupport -lstdc++"
2859        LLVM_LIBS="$LLVM_LIBS $LLVM_SYSTEM_LIBS"
2860
2861        llvm_config_path=$with_llvm/include/llvm/Config/llvm-config.h
2862        llvm_api_version=`awk '/MONO_API_VERSION/ { print $3 }' $llvm_config_path`
2863    fi  
2864
2865    if test "x$llvm_api_version" = "x"; then
2866           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2867           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2868    else
2869           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2870           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2871    fi   
2872
2873    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2874
2875    AC_SUBST(LLVM_CFLAGS)
2876    AC_SUBST(LLVM_CXXFLAGS)
2877    AC_SUBST(LLVM_LIBS)
2878    AC_SUBST(LLVM_LDFLAGS)
2879    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2880 fi
2881
2882 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2883 if test "x$enable_loadedllvm" = "xyes"; then
2884    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2885 fi
2886 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2887
2888 if test "x$enable_llvm" = "xyes"; then
2889    enable_llvm_runtime=yes
2890 fi
2891 if test "x$enable_llvm_runtime" = "xyes"; then
2892    AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
2893 fi
2894 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes])
2895
2896 TARGET="unknown"
2897 ACCESS_UNALIGNED="yes"
2898
2899 LIBC="libc.so.6"
2900 INTL="libc.so.6"
2901 SQLITE="libsqlite.so.0"
2902 SQLITE3="libsqlite3.so.0"
2903 X11="libX11.so"
2904 GDKX11="libgdk-x11-2.0.so.0"
2905 GTKX11="libgtk-x11-2.0.so.0"
2906 XINERAMA="libXinerama.so.1"
2907
2908 sizeof_register="SIZEOF_VOID_P"
2909
2910 jit_wanted=true
2911 boehm_supported=true
2912 case "$host" in
2913         mips*)
2914                 TARGET=MIPS;
2915                 arch_target=mips;
2916                 with_tls=pthread;
2917                 ACCESS_UNALIGNED="no"
2918
2919                 AC_MSG_CHECKING(for mips n32)
2920                 AC_TRY_COMPILE([],[
2921                 #if _MIPS_SIM != _ABIN32
2922                 #error Not mips n32
2923                 #endif
2924                 return 0;
2925                 ],[
2926                 AC_MSG_RESULT(yes)
2927                 sizeof_register=8
2928                 ],[
2929                 AC_MSG_RESULT(no)
2930                 ])
2931                 ;;
2932         i*86-*-*)
2933                 TARGET=X86;
2934                 arch_target=x86;
2935                 case $host_os in
2936                   solaris*)
2937                         LIBC="libc.so"
2938                         INTL="libintl.so"
2939                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2940                                 TARGET=AMD64
2941                                 arch_target=amd64
2942                         fi
2943
2944                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
2945                         # int astruct __attribute__ ((visibility ("hidden")));
2946                         # void foo ()
2947                         # {
2948                         #       void *p = &astruct;
2949                         # }
2950                         # gcc -fPIC --shared -o libfoo.so foo.c
2951                         # yields:
2952                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
2953                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
2954                         have_visibility_hidden=no
2955                         ;;
2956                   mingw*|cygwin*)
2957                         have_visibility_hidden=no                 
2958                         ;;
2959                   haiku*)
2960                         LIBC=libroot.so
2961                         ;;
2962                   linux*)
2963                         AOT_SUPPORTED="yes"
2964                         ;;
2965                   darwin*)
2966                         AOT_SUPPORTED="yes"
2967                         ;;
2968                   openbsd*|freebsd*|kfreebsd-gnu*)
2969                         ;;
2970                 esac
2971                 ;;
2972         x86_64-*-* | amd64-*-*)
2973                 TARGET=AMD64;
2974                 arch_target=amd64;
2975                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
2976                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2977                         sizeof_register=8
2978                 fi
2979                 case $host_os in
2980                   linux*)
2981                         AOT_SUPPORTED="yes"
2982                         ;;
2983                   darwin*)
2984                         AOT_SUPPORTED="yes"
2985                         ;;
2986                   openbsd*|freebsd*|kfreebsd-gnu*)
2987                         ;;
2988                   mingw*)
2989                         ;;
2990                 esac
2991                 case "$host" in
2992                         x86_64-*-nacl*)
2993                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2994                                 sizeof_register=8
2995                                 ;;
2996                 esac
2997                 ;;
2998         ia64-*-*)
2999                 TARGET=IA64
3000                 arch_target=ia64
3001                 ACCESS_UNALIGNED="no"
3002                 LIBC="libc.so.6.1"
3003                 INTL="libc.so.6.1"
3004                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
3005                 libmono_ldflags="-lunwind"
3006                 ;;
3007         sparc*-*-*)
3008                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3009                    TARGET=SPARC64
3010                 else
3011                         TARGET=SPARC
3012                 fi
3013                 arch_target=sparc;
3014                 ACCESS_UNALIGNED="no"
3015                 case $host_os in
3016                   linux*) ;;
3017                   *)
3018                         LIBC="libc.so"
3019                         INTL="libintl.so"
3020                 esac
3021                 if test x"$GCC" = xyes; then
3022                         # We don't support v8 cpus
3023                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
3024                 fi
3025                 if test x"$AR" = xfalse; then
3026                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
3027                 fi
3028                 ;;
3029         *-mingw*|*-*-cygwin*)
3030                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
3031                 have_visibility_hidden=no
3032                 INTL="intl"
3033                 ;;
3034         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
3035         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
3036                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3037                         TARGET=POWERPC64;
3038                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
3039                         CFLAGS="$CFLAGS -mminimal-toc"
3040                 else
3041                         TARGET=POWERPC;
3042                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
3043                 fi
3044                 arch_target=ppc;
3045                 case $host_os in
3046                   linux*|darwin*)
3047                         ;;
3048                 esac
3049                 ;;
3050         armv7k-*-darwin*)
3051                 TARGET=ARM;
3052                 TARGET_SYS=WATCHOS
3053                 arch_target=arm;
3054                 arm_fpu=VFP_HARD
3055                 ACCESS_UNALIGNED="no"
3056                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3057                 ;;
3058
3059         arm*-darwin*)
3060                 TARGET=ARM;
3061                 arch_target=arm;
3062                 ACCESS_UNALIGNED="no"
3063                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3064                 ;;
3065         arm*-linux*)
3066                 TARGET=ARM;
3067                 arch_target=arm;
3068                 ACCESS_UNALIGNED="no"
3069                 AOT_SUPPORTED="yes"
3070                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3071                 ;;
3072         arm*-netbsd*-eabi*)
3073                 TARGET=ARM;
3074                 arch_target=arm;
3075                 ACCESS_UNALIGNED="no"
3076                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3077                 ;;
3078 # TODO: make proper support for NaCl host.
3079 #        arm*-*nacl)
3080 #               TARGET=ARM;
3081 #               arch_target=arm;
3082 #               ACCESS_UNALIGNED="no"
3083 #               AOT_SUPPORTED="no"
3084 #               ;;
3085         aarch64-*)
3086                 # https://lkml.org/lkml/2012/7/15/133
3087                 TARGET=ARM64
3088                 arch_target=arm64
3089                 boehm_supported=false
3090                 AOT_SUPPORTED="yes"
3091                 ;;
3092         s390x-*-linux*)
3093                 TARGET=S390X;
3094                 arch_target=s390x;
3095                 ACCESS_UNALIGNED="yes"
3096                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
3097                 ;;
3098 esac
3099
3100 HOST=$TARGET
3101
3102 if test "x$host" != "x$target"; then
3103    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
3104    enable_mcs_build=no
3105    case "$target" in
3106    arm*-darwin*)
3107                 TARGET=ARM;
3108                 arch_target=arm;
3109                 ACCESS_UNALIGNED="no"
3110                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3111                 # Can't use tls, since it depends on the runtime detection of tls offsets
3112                 # in mono-compiler.h
3113                 with_tls=pthread
3114                 case "$target" in
3115                 armv7k-*)
3116                         arm_fpu=VFP_HARD
3117                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
3118                         ;;
3119                 esac            
3120                 ;;
3121    powerpc64-ps3-linux-gnu)
3122                 TARGET=POWERPC64
3123                 arch_target=powerpc64
3124                 AC_DEFINE(TARGET_PS3, 1, [...])
3125                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3126                 # uses this define
3127                 AC_DEFINE(__mono_ppc64__, 1, [...])
3128                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3129                 sizeof_register=8
3130                 target_byte_order=G_BIG_ENDIAN
3131                 ;;
3132    powerpc64-xbox360-linux-gnu)
3133                 TARGET=POWERPC64
3134                 arch_target=powerpc64
3135                 AC_DEFINE(TARGET_XBOX360, 1, [...])
3136                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3137                 # uses this define
3138                 sizeof_register=8
3139                 target_byte_order=G_BIG_ENDIAN
3140                 ;;
3141    x86_64-*-nacl)
3142                 TARGET=AMD64
3143                 arch_target=amd64
3144                 AC_DEFINE(TARGET_AMD64, 1, [...])
3145                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3146                 sizeof_register=8
3147                 ;;
3148 # TODO: make proper support for NaCl target.
3149 #   arm*-*nacl)
3150 #               TARGET=ARM
3151 #               arch_target=arm
3152 #               AC_DEFINE(TARGET_ARM, 1, [...])
3153 #               ACCESS_UNALIGNED="no"
3154 #               sizeof_register=4
3155 #               CPPFLAGS="$CPPFLAGS \
3156 #                    -D__ARM_EABI__ \
3157 #                    -D__arm__ \
3158 #                    -D__portable_native_client__ \
3159 #                    -Dtimezone=_timezone \
3160 #                    -DDISABLE_SOCKETS \
3161 #                    -DDISABLE_ATTACH \
3162 #                    -DUSE_NEWLIB"
3163                 # Can't use tls, since it depends on the runtime detection of tls offsets
3164                 # in mono-compiler.h
3165 #               with_tls=pthread
3166 #               ;;
3167    i686-*-nacl)
3168                 TARGET=X86
3169                 arch_target=x86
3170                 AC_DEFINE(TARGET_X86, 1, [...])
3171                 sizeof_register=4
3172                 ;;
3173    arm*-linux-*)
3174                 TARGET=ARM;
3175                 arch_target=arm;
3176                 AC_DEFINE(TARGET_ARM, 1, [...])
3177                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3178                 ACCESS_UNALIGNED="no"
3179                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3180                 # Can't use tls, since it depends on the runtime detection of tls offsets
3181                 # in mono-compiler.h
3182                 with_tls=pthread
3183                 target_mach=no
3184                 case "$target" in
3185                 armv7l-unknown-linux-gnueabi*)
3186                         # TEGRA
3187                         CPPFLAGS="$CPPFLAGS"
3188                         ;;
3189                 armv5-*-linux-androideabi*)
3190                         CPPFLAGS="$CPPFLAGS"
3191                         ;;
3192                 esac
3193                 ;;
3194    arm*-netbsd*-eabi*)
3195                 TARGET=ARM;
3196                 arch_target=arm;
3197                 AC_DEFINE(TARGET_ARM, 1, [...])
3198                 ACCESS_UNALIGNED="no"
3199                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3200                 # Can't use tls, since it depends on the runtime detection of tls offsets
3201                 # in mono-compiler.h
3202                 with_tls=pthread
3203                 target_mach=no
3204                 ;;
3205    i686*-linux-*)
3206                 TARGET=X86;
3207                 arch_target=x86;
3208                 AC_DEFINE(TARGET_X86, 1, [...])
3209                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3210                 CPPFLAGS="$CPPFLAGS"
3211                 # Can't use tls, since it depends on the runtime detection of tls offsets
3212                 # in mono-compiler.h            
3213                 with_tls=pthread
3214                 target_mach=no
3215                 ;;
3216    x86_64*-linux-*)
3217                 TARGET=AMD64;
3218                 arch_target=amd64;
3219                 AC_DEFINE(TARGET_AMD64, 1, [...])
3220                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3221                 CPPFLAGS="$CPPFLAGS"
3222                 # Can't use tls, since it depends on the runtime detection of tls offsets
3223                 # in mono-compiler.h
3224                 with_tls=pthread
3225                 target_mach=no
3226                 ;;
3227    x86_64-ps4-freebsd)
3228                 TARGET=AMD64;
3229                 arch_target=amd64;
3230                 AC_DEFINE(TARGET_AMD64, 1, [...])
3231                 AC_DEFINE(TARGET_PS4, 1, [...])
3232                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
3233                 CPPFLAGS="$CPPFLAGS"
3234                 # Can't use tls, since it depends on the runtime detection of tls offsets
3235                 # in mono-compiler.h
3236                 with_tls=pthread
3237                 target_mach=no
3238                 target_win32=no
3239                 ;;
3240    aarch64*-linux-*)
3241                 TARGET=ARM64;
3242                 arch_target=arm64;
3243                 AC_DEFINE(TARGET_ARM64, 1, [...])
3244                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3245                 CPPFLAGS="$CPPFLAGS"
3246                 # Can't use tls, since it depends on the runtime detection of tls offsets
3247                 # in mono-compiler.h
3248                 with_tls=pthread
3249                 target_mach=no
3250                 ;;
3251         aarch64-*)
3252                 TARGET=ARM64
3253                 ;;
3254         *)
3255                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
3256         esac
3257 fi
3258
3259 case "$TARGET" in
3260 X86)
3261         AC_DEFINE(TARGET_X86, 1, [...])
3262         ;;
3263 AMD64)
3264         AC_DEFINE(TARGET_AMD64, 1, [...])
3265         ;;
3266 ARM)
3267         AC_DEFINE(TARGET_ARM, 1, [...])
3268         ;;
3269 ARM64)
3270         AC_DEFINE(TARGET_ARM64, 1, [...])
3271         ;;
3272 POWERPC)
3273         AC_DEFINE(TARGET_POWERPC, 1, [...])
3274         ;;
3275 POWERPC64)
3276         AC_DEFINE(TARGET_POWERPC, 1, [...])
3277         AC_DEFINE(TARGET_POWERPC64, 1, [...])
3278         ;;
3279 S390X)
3280         AC_DEFINE(TARGET_S390X, 1, [...])
3281         ;;
3282 MIPS)
3283         AC_DEFINE(TARGET_MIPS, 1, [...])
3284         ;;
3285 IA64)
3286         AC_DEFINE(TARGET_IA64, 1, [...])
3287         ;;
3288 SPARC)
3289         AC_DEFINE(TARGET_SPARC, 1, [...])
3290         ;;
3291 SPARC64)
3292         AC_DEFINE(TARGET_SPARC64, 1, [...])
3293         ;;
3294 esac
3295
3296 case "$HOST" in
3297 X86)
3298         AC_DEFINE(HOST_X86, 1, [...])
3299         ;;
3300 AMD64)
3301         AC_DEFINE(HOST_AMD64, 1, [...])
3302         ;;
3303 ARM)
3304         AC_DEFINE(HOST_ARM, 1, [...])
3305         ;;
3306 ARM64)
3307         AC_DEFINE(HOST_ARM64, 1, [...])
3308         ;;
3309 POWERPC)
3310         AC_DEFINE(HOST_POWERPC, 1, [...])
3311         ;;
3312 POWERPC64)
3313         AC_DEFINE(HOST_POWERPC, 1, [...])
3314         AC_DEFINE(HOST_POWERPC64, 1, [...])
3315         ;;
3316 S390X)
3317         AC_DEFINE(HOST_S390X, 1, [...])
3318         ;;
3319 MIPS)
3320         AC_DEFINE(HOST_MIPS, 1, [...])
3321         ;;
3322 IA64)
3323         AC_DEFINE(HOST_IA64, 1, [...])
3324         ;;
3325 SPARC)
3326         AC_DEFINE(HOST_SPARC, 1, [...])
3327         ;;
3328 SPARC64)
3329         AC_DEFINE(HOST_SPARC64, 1, [...])
3330         ;;
3331 esac
3332
3333
3334
3335 dnl *************
3336 dnl *** VTUNE ***
3337 dnl *************
3338
3339 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
3340 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
3341
3342 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
3343
3344 if test "x$enable_vtune" = "xyes"; then
3345         if test "x$with_vtune" = "x"; then
3346                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
3347         else
3348                 VTUNE_PATH=$with_vtune
3349         fi
3350         VTUNE_INCLUDE=$VTUNE_PATH/include
3351         case "$TARGET" in
3352         X86)
3353                 VTUNE_LIB=$VTUNE_PATH/lib32
3354                 ;;
3355         AMD64)
3356                 VTUNE_LIB=$VTUNE_PATH/lib64
3357                 ;;
3358         *)
3359                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
3360                 ;;
3361         esac
3362         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
3363                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
3364         fi
3365         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
3366                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
3367         fi
3368
3369         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
3370         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
3371
3372         AC_SUBST(VTUNE_LIBS)
3373         AC_SUBST(VTUNE_CFLAGS)
3374 fi
3375 dnl Use GCC atomic ops if they work on the target.
3376 if test x$GCC = "xyes"; then
3377         case $TARGET in
3378         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
3379                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
3380                 ;;
3381         esac
3382 fi
3383
3384 if test "x$target_mach" = "xyes"; then
3385
3386    if test "x$TARGET_SYS" = "xWATCHOS"; then
3387           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
3388           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3389           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3390    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
3391           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3392           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3393           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3394    else
3395        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
3396        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
3397        #error fail this for ios
3398        #endif
3399        return 0;
3400        ], [
3401                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
3402           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
3403           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
3404        ], [
3405           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3406           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3407           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3408        ])
3409         fi
3410    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
3411 fi
3412
3413 if test "x$sizeof_register" = "x4"; then
3414    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
3415 elif test "x$sizeof_register" = "x8"; then
3416    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
3417 else
3418    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
3419 fi
3420
3421 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
3422    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
3423 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
3424    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
3425 else
3426    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
3427 fi
3428
3429 if test "x$have_visibility_hidden" = "xyes"; then
3430    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
3431 fi
3432
3433 if test "x$have_deprecated" = "xyes"; then
3434    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
3435 fi
3436
3437 dnl 
3438 dnl Simple Generational checks (sgen)
3439 dnl
3440 SGEN_DEFINES=
3441 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
3442 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
3443 if test x$buildsgen = xyes; then
3444    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
3445    SGEN_DEFINES="-DHAVE_SGEN_GC"
3446
3447         conc_gc_msg=""
3448    if test x$with_sgen_default_concurrent != xno; then
3449        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
3450            conc_gc_msg=" (concurrent by default)"
3451    fi
3452
3453    if test "x$gc_msg" = "x"; then
3454       gc_msg="sgen$conc_gc_msg"
3455    else
3456       gc_msg="sgen$conc_gc_msg and $gc_msg"
3457    fi
3458 fi
3459 AC_SUBST(SGEN_DEFINES)
3460 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
3461
3462 jit_status="Building and using the JIT"
3463
3464 libsuffix=".so"
3465
3466 case "$host" in
3467      *-*-darwin*)
3468         libsuffix=".dylib"
3469         LIBC="libc.dylib"
3470         INTL="libintl.dylib"
3471         SQLITE="libsqlite.0.dylib"
3472         SQLITE3="libsqlite3.0.dylib"
3473         X11="libX11.dylib"
3474         GDKX11="libgdk-x11-2.0.dylib"
3475         GTKX11="libgtk-x11-2.0.dylib"
3476         ;;
3477      *-*-*netbsd*)
3478         LIBC="libc.so"
3479         INTL="libintl.so"
3480         SQLITE="libsqlite.so"
3481         SQLITE3="libsqlite3.so"
3482         ;;
3483      *-*-kfreebsd*-gnu)
3484         LIBC="libc.so.0.1"
3485         INTL="libc.so.0.1"
3486         X11="libX11.so.6"
3487         ;;
3488     *-*-*freebsd*)
3489         LIBC="libc.so.7"
3490         INTL="libintl.so"
3491         SQLITE="libsqlite.so"
3492         SQLITE3="libsqlite3.so"
3493         ;;
3494     *-*-*openbsd*)
3495         LIBC="libc.so"
3496         INTL="libintl.so"
3497         SQLITE="libsqlite.so"
3498         SQLITE3="libsqlite3.so"
3499         ;;
3500     *-*-*linux*)
3501         AC_PATH_X
3502         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
3503         AC_MSG_CHECKING(for the soname of libX11.so)
3504         for i in $x_libraries $dlsearch_path; do
3505                 for r in 4 5 6; do
3506                         if test -f $i/libX11.so.$r; then
3507                                 X11=libX11.so.$r
3508                                 AC_MSG_RESULT($X11)
3509                         fi
3510                 done
3511         done
3512         
3513         if test "x$X11" = "xlibX11.so"; then
3514                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
3515                 X11=libX11.so.6
3516         fi
3517         ;;
3518 esac
3519
3520
3521 AC_SUBST(libsuffix)
3522
3523 AC_ARG_WITH([libgdiplus],
3524         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3525         [], [with_libgdiplus=installed])
3526
3527 # default install location
3528 libgdiplus_install_loc=libgdiplus${libsuffix}
3529 case "$host" in
3530     *-*-*linux*)
3531     libgdiplus_install_loc=libgdiplus${libsuffix}.0
3532     ;;
3533 esac
3534
3535 case $with_libgdiplus in
3536     no|installed)
3537     libgdiplus_loc=
3538     ;;
3539
3540     yes|sibling)
3541     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3542     ;;
3543
3544     /*) # absolute path, assume it is an install location
3545     libgdiplus_loc=$with_libgdiplus
3546     libgdiplus_install_loc=$with_libgdiplus
3547     ;;
3548
3549     *)
3550     libgdiplus_loc=`pwd`/$with_libgdiplus
3551     ;;
3552 esac
3553 AC_SUBST([libgdiplus_loc])
3554 AC_SUBST([libgdiplus_install_loc])
3555
3556 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3557 if test "x$icall_symbol_map" = "xyes"; then
3558    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3559 fi
3560
3561 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3562 if test "x$icall_export" = "xyes"; then
3563    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3564 fi
3565
3566 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3567 if test "x$icall_tables" = "xno"; then
3568    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3569 fi
3570
3571 if test "x$with_tls" = "x__thread"; then
3572         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3573         # Pass the information to libgc
3574         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3575         AC_MSG_CHECKING(if the tls_model attribute is supported)
3576         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3577                 ], [
3578                         AC_MSG_RESULT(yes)
3579                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3580                 ], [
3581                         AC_MSG_RESULT(no)
3582         ])
3583 fi
3584
3585 if test ${TARGET} = ARM; then
3586         dnl ******************************************
3587         dnl *** Check to see what FPU is available ***
3588         dnl ******************************************
3589         AC_MSG_CHECKING(which FPU to use)
3590
3591         #
3592         # This is a bit tricky:
3593         #
3594         # if (__ARM_PCS_VFP) {
3595         #       /* mfloat-abi=hard == VFP with hard ABI */
3596         # } elif (!__SOFTFP__) {
3597         #       /* mfloat-abi=softfp == VFP with soft ABI */
3598         # } else {
3599         #       /* mfloat-abi=soft == no VFP */
3600         # }
3601         #
3602         # The exception is iOS (w/ GCC) where none of the above
3603         # are defined (but iOS always uses the 'softfp' ABI).
3604         #
3605         # No support for FPA.
3606         #
3607
3608         fpu=NONE
3609
3610         # iOS GCC always uses the 'softfp' ABI.
3611         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
3612                 fpu=VFP
3613         fi
3614
3615         # Are we using the 'hard' ABI?
3616         if test x$fpu = xNONE; then
3617                 AC_TRY_COMPILE([], [
3618                         #ifndef __ARM_PCS_VFP
3619                         #error "Float ABI is not 'hard'"
3620                         #endif
3621                         return 0;
3622                 ], [
3623                         fpu=VFP_HARD
3624                 ], [
3625                         fpu=NONE
3626                 ])
3627         fi
3628
3629         # No 'hard' ABI. 'soft' or 'softfp'?
3630         if test x$fpu = xNONE; then
3631                 AC_TRY_COMPILE([], [
3632                         #ifdef __SOFTFP__
3633                         #error "Float ABI is not 'softfp'"
3634                         #endif
3635                         return 0;
3636                 ], [
3637                         fpu=VFP
3638                 ], [
3639                         fpu=NONE
3640                 ])
3641         fi
3642
3643         if test x$arm_fpu != x; then
3644            fpu=$arm_fpu
3645         fi
3646
3647         AC_MSG_RESULT($fpu)
3648         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3649         unset fpu
3650
3651         dnl *********************************************
3652         dnl *** Check which ARM version(s) we can use ***
3653         dnl *********************************************
3654         AC_MSG_CHECKING(which ARM version to use)
3655
3656         AC_TRY_COMPILE([], [
3657                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3658                 #error Not on ARM v5.
3659                 #endif
3660                 return 0;
3661         ], [
3662                 arm_v5=yes
3663
3664                 arm_ver=ARMv5
3665         ], [])
3666
3667         AC_TRY_COMPILE([], [
3668                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3669                 #error Not on ARM v6.
3670                 #endif
3671                 return 0;
3672         ], [
3673                 arm_v5=yes
3674                 arm_v6=yes
3675
3676                 arm_ver=ARMv6
3677         ], [])
3678
3679         AC_TRY_COMPILE([], [
3680                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3681                 #error Not on ARM v7.
3682                 #endif
3683                 return 0;
3684         ], [
3685                 arm_v5=yes
3686                 arm_v6=yes
3687                 arm_v7=yes
3688
3689                 arm_ver=ARMv7
3690         ], [])
3691
3692         AC_MSG_RESULT($arm_ver)
3693
3694         if test x$arm_v5 = xyes; then
3695                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3696                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3697         fi
3698
3699         if test x$arm_v6 = xyes; then
3700                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3701                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3702         fi
3703
3704         if test x$arm_v7 = xyes; then
3705                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3706                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3707         fi
3708 fi
3709
3710 if test ${TARGET} = unknown; then
3711         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3712         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3713 fi
3714
3715 if test ${ACCESS_UNALIGNED} = no; then
3716         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3717 fi
3718
3719 case "x$libgc" in
3720         xincluded)
3721                 # Pass CPPFLAGS to libgc configure
3722                 # We should use a separate variable for this to avoid passing useless and
3723                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3724                 # This should be executed late so we pick up the final version of CPPFLAGS
3725                 # The problem with this approach, is that during a reconfigure, the main
3726                 # configure scripts gets invoked with these arguments, so we use separate
3727                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3728                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3729                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3730                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3731                 fi
3732                 # Don't pass -finstrument-for-thread-suspension in, 
3733                 # if these are instrumented it will be very bad news 
3734                 # (infinite recursion, undefined parking behavior, etc)
3735                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3736                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3737                 if test "x$support_boehm" = "xyes"; then
3738                         AC_CONFIG_SUBDIRS(libgc)
3739                 fi
3740                 ;;
3741 esac
3742
3743 MALLOC_MEMPOOLS=no
3744 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3745         if test x$with_malloc_mempools = xyes; then
3746                 MALLOC_MEMPOOLS=yes
3747                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3748         fi
3749 ])
3750
3751
3752 DISABLE_MCS_DOCS=default
3753 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3754         if test x$with_mcs_docs != xyes; then
3755                 DISABLE_MCS_DOCS=yes
3756         fi
3757 ])
3758 if test -n "$INSTALL_4_x_TRUE"; then :
3759         DISABLE_MCS_DOCS=yes
3760 fi
3761 if test "x$DISABLE_MCS_DOCS" = "xdefault"; then
3762    DISABLE_MCS_DOCS=$DISABLE_MCS_DOCS_default
3763 fi
3764
3765 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
3766         if test x$with_lazy_gc_thread_creation != xno ; then
3767                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3768         fi
3769 ], [with_lazy_gc_thread_creation=no])
3770
3771 AC_ARG_WITH(cooperative_gc, [  --with-cooperative-gc=yes|no      Enable cooperative stop-the-world garbage collection (sgen only) (defaults to no)], [], [with_cooperative_gc=default])
3772
3773 if test x$with_cooperative_gc = xdefault; then
3774         with_cooperative_gc=$with_cooperative_gc_default
3775 fi
3776
3777 if test x$with_cooperative_gc != xno; then
3778         AC_DEFINE(USE_COOP_GC,1,[Enable cooperative stop-the-world garbage collection.])
3779 fi
3780
3781 AM_CONDITIONAL([ENABLE_COOP], [test x$with_cooperative_gc != xno])
3782
3783 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],[
3784
3785         if test x$enable_checked_build != x ; then
3786                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
3787         fi
3788         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
3789                 eval "mono_checked_build_test_enable_$feature='yes'"
3790         done
3791
3792         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
3793                 eval "mono_checked_build_test_enable_gc='yes'"
3794                 eval "mono_checked_build_test_enable_metadata='yes'"
3795                 eval "mono_checked_build_test_enable_thread='yes'"
3796         fi
3797
3798         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
3799                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
3800         fi
3801
3802         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
3803                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
3804         fi
3805
3806         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
3807                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
3808         fi
3809
3810 ], [])
3811
3812 AC_CHECK_HEADER([malloc.h], 
3813                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
3814                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3815
3816 if test x"$GCC" = xyes; then
3817         # Implicit function declarations are not 64 bit safe
3818         # Do this late, since this causes lots of configure tests to fail
3819         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3820         # jay has a lot of implicit declarations
3821         JAY_CFLAGS="-Wno-implicit-function-declaration"
3822 fi
3823
3824 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3825 # instead of libmono-static.a
3826 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3827    LIBMONO_LA=libmini-static.la
3828 else
3829    if test x$buildsgen = xyes; then
3830       LIBMONO_LA=libmonosgen-$API_VER.la
3831    else
3832       LIBMONO_LA=libmonoboehm-$API_VER.la
3833    fi
3834 fi
3835 AC_SUBST(LIBMONO_LA)
3836
3837 if test x$DISABLE_MCS_DOCS = xyes; then
3838    docs_dir=""
3839 else
3840    docs_dir=docs
3841 fi
3842 AC_SUBST(docs_dir)
3843
3844 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
3845 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
3846
3847 libmono_ldflags="$libmono_ldflags $LIBS"
3848
3849 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
3850 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
3851 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
3852 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
3853 AM_CONDITIONAL(X86, test x$TARGET = xX86)
3854 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
3855 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
3856 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
3857 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
3858 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
3859 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
3860 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
3861 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
3862 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
3863 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
3864 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
3865 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
3866 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
3867
3868 AC_SUBST(LIBC)
3869 AC_SUBST(INTL)
3870 AC_SUBST(SQLITE)
3871 AC_SUBST(SQLITE3)
3872 AC_SUBST(X11)
3873 AC_SUBST(GDKX11)
3874 AC_SUBST(GTKX11)
3875 AC_SUBST(XINERAMA)
3876 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
3877 AC_SUBST(arch_target)
3878 AC_SUBST(CFLAGS)
3879 AC_SUBST(CPPFLAGS)
3880 AC_SUBST(LDFLAGS)
3881
3882 #This must always be defined when building the runtime
3883 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
3884
3885 mono_build_root=`pwd`
3886 AC_SUBST(mono_build_root)
3887
3888 mono_runtime=mono/mini/mono
3889 AC_SUBST(mono_runtime)
3890
3891 mono_cfg_root=$mono_build_root/runtime
3892 if test x$host_win32 = xyes; then
3893   if test "x$cross_compiling" = "xno"; then
3894     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
3895   else
3896     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
3897   fi
3898 else
3899   mono_cfg_dir=$mono_cfg_root/etc
3900 fi
3901 AC_SUBST(mono_cfg_dir)
3902
3903 AC_CONFIG_FILES([po/mcs/Makefile.in])
3904
3905 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
3906 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
3907
3908 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
3909 [   depth=../../../..
3910     case $srcdir in
3911     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3912     .) reldir=$depth ;;
3913     *) reldir=$depth/$srcdir ;;
3914     esac
3915     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
3916     cd runtime/etc/mono/1.0
3917     rm -f machine.config
3918     $LN_S $reldir/data/net_1_1/machine.config machine.config
3919     cd $depth
3920 ],[LN_S='$LN_S'])
3921
3922 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
3923 [   depth=../../../..
3924     case $srcdir in
3925     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3926     .) reldir=$depth ;;
3927     *) reldir=$depth/$srcdir ;;
3928     esac
3929     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3930     cd runtime/etc/mono/2.0
3931     rm -f machine.config
3932     $LN_S $reldir/data/net_2_0/machine.config machine.config
3933     cd $depth
3934 ],[LN_S='$LN_S'])
3935
3936 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
3937 [   depth=../../../..
3938     case $srcdir in
3939     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3940     .) reldir=$depth ;;
3941     *) reldir=$depth/$srcdir ;;
3942     esac
3943     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3944     cd runtime/etc/mono/2.0
3945     rm -f web.config
3946     $LN_S $reldir/data/net_2_0/web.config web.config
3947     cd $depth
3948 ],[LN_S='$LN_S'])
3949
3950 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
3951 [   depth=../../..
3952     case $srcdir in
3953     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3954     .) reldir=$depth ;;
3955     *) reldir=$depth/$srcdir ;;
3956     esac
3957     $ac_aux_dir/install-sh -d runtime/etc/mono/
3958     cd runtime/etc/mono/
3959     rm -f browscap.ini
3960     $LN_S $reldir/data/browscap.ini browscap.ini
3961     cd $depth
3962 ],[LN_S='$LN_S'])
3963
3964 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
3965 [   depth=../../../../..
3966     case $srcdir in
3967     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3968     .) reldir=$depth ;;
3969     *) reldir=$depth/$srcdir ;;
3970     esac
3971     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
3972     cd runtime/etc/mono/2.0/Browsers
3973     rm -f Compat.browser
3974     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3975     cd $depth
3976 ],[LN_S='$LN_S'])
3977
3978 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
3979 [   depth=../../../../..
3980     case $srcdir in
3981     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3982     .) reldir=$depth ;;
3983     *) reldir=$depth/$srcdir ;;
3984     esac
3985     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
3986     cd runtime/etc/mono/4.0/Browsers
3987     rm -f Compat.browser
3988     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
3989     cd $depth
3990 ],[LN_S='$LN_S'])
3991
3992 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
3993 [   depth=../../../../..
3994     case $srcdir in
3995     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3996     .) reldir=$depth ;;
3997     *) reldir=$depth/$srcdir ;;
3998     esac
3999     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
4000     cd runtime/etc/mono/4.5/Browsers
4001     rm -f Compat.browser
4002     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4003     cd $depth
4004 ],[LN_S='$LN_S'])
4005
4006 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
4007 [   depth=../../../..
4008     case $srcdir in
4009     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4010     .) reldir=$depth ;;
4011     *) reldir=$depth/$srcdir ;;
4012     esac
4013     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4014     cd runtime/etc/mono/4.0
4015     rm -f machine.config
4016     $LN_S $reldir/data/net_4_0/machine.config machine.config
4017     cd $depth
4018 ],[LN_S='$LN_S'])
4019
4020 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
4021 [   depth=../../../..
4022     case $srcdir in
4023     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4024     .) reldir=$depth ;;
4025     *) reldir=$depth/$srcdir ;;
4026     esac
4027     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4028     cd runtime/etc/mono/4.0
4029     rm -f web.config
4030     $LN_S $reldir/data/net_4_0/web.config web.config
4031     cd $depth
4032 ],[LN_S='$LN_S'])
4033
4034 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
4035 [   depth=../../../..
4036     case $srcdir in
4037     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4038     .) reldir=$depth ;;
4039     *) reldir=$depth/$srcdir ;;
4040     esac
4041     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4042     cd runtime/etc/mono/4.5
4043     rm -f machine.config
4044     $LN_S $reldir/data/net_4_5/machine.config machine.config
4045     cd $depth
4046 ],[LN_S='$LN_S'])
4047
4048 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
4049 [   depth=../../../..
4050     case $srcdir in
4051     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4052     .) reldir=$depth ;;
4053     *) reldir=$depth/$srcdir ;;
4054     esac
4055     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4056     cd runtime/etc/mono/4.5
4057     rm -f web.config
4058     $LN_S $reldir/data/net_4_5/web.config web.config
4059     cd $depth
4060 ],[LN_S='$LN_S'])
4061
4062 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])
4063 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])
4064
4065 AC_OUTPUT([
4066 Makefile
4067 mono-uninstalled.pc
4068 acceptance-tests/Makefile
4069 llvm/Makefile
4070 scripts/mono-find-provides
4071 scripts/mono-find-requires
4072 mono/Makefile
4073 mono/utils/Makefile
4074 mono/metadata/Makefile
4075 mono/dis/Makefile
4076 mono/cil/Makefile
4077 mono/arch/Makefile
4078 mono/arch/x86/Makefile
4079 mono/arch/amd64/Makefile
4080 mono/arch/ppc/Makefile
4081 mono/arch/sparc/Makefile
4082 mono/arch/s390x/Makefile
4083 mono/arch/arm/Makefile
4084 mono/arch/arm64/Makefile
4085 mono/arch/ia64/Makefile
4086 mono/arch/mips/Makefile
4087 mono/sgen/Makefile
4088 mono/tests/Makefile
4089 mono/tests/tests-config
4090 mono/tests/assemblyresolve/Makefile
4091 mono/tests/gc-descriptors/Makefile
4092 mono/unit-tests/Makefile
4093 mono/benchmark/Makefile
4094 mono/io-layer/Makefile
4095 mono/mini/Makefile
4096 mono/profiler/Makefile
4097 m4/Makefile
4098 ikvm-native/Makefile
4099 scripts/Makefile
4100 man/Makefile
4101 docs/Makefile
4102 data/Makefile
4103 data/net_2_0/Makefile
4104 data/net_4_0/Makefile
4105 data/net_4_5/Makefile
4106 data/net_2_0/Browsers/Makefile
4107 data/net_4_0/Browsers/Makefile
4108 data/net_4_5/Browsers/Makefile
4109 data/mint.pc
4110 data/mono-2.pc
4111 data/monosgen-2.pc
4112 data/mono.pc
4113 data/mono-cairo.pc
4114 data/mono-nunit.pc
4115 data/mono-options.pc
4116 data/mono-lineeditor.pc
4117 data/monodoc.pc
4118 data/dotnet.pc
4119 data/dotnet35.pc
4120 data/wcf.pc
4121 data/cecil.pc
4122 data/system.web.extensions_1.0.pc
4123 data/system.web.extensions.design_1.0.pc
4124 data/system.web.mvc.pc
4125 data/system.web.mvc2.pc
4126 data/system.web.mvc3.pc
4127 data/aspnetwebstack.pc
4128 data/reactive.pc
4129 samples/Makefile
4130 support/Makefile
4131 data/config
4132 tools/Makefile
4133 tools/locale-builder/Makefile
4134 tools/sgen/Makefile
4135 tools/monograph/Makefile
4136 tools/pedump/Makefile
4137 runtime/Makefile
4138 msvc/Makefile
4139 po/Makefile
4140 ])
4141
4142 # Update all submodules recursively to ensure everything is checked out
4143 $srcdir/scripts/update_submodules
4144
4145 if test x$host_win32 = xyes; then
4146    # Get rid of 'cyg' prefixes in library names
4147    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4148    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
4149    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
4150    # executable doesn't work...
4151    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4152 fi
4153
4154 if test x$host_darwin = xyes; then
4155    # This doesn't seem to be required and it slows down parallel builds
4156    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
4157 fi
4158
4159 (
4160   case $prefix in
4161   NONE) prefix=$ac_default_prefix ;;
4162   esac
4163   case $exec_prefix in
4164   NONE) exec_prefix='${prefix}' ;;
4165   esac
4166
4167   #
4168   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
4169   # any existing config.make.  This allows people to share the same source tree
4170   # with different build directories, one native and one cross
4171   #
4172   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
4173
4174     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
4175
4176     echo "prefix=$prefix" > $mcs_topdir/build/config.make
4177     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
4178     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
4179     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
4180     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
4181     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
4182     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
4183     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
4184
4185     case $INSTALL in
4186     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
4187     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
4188     esac
4189
4190     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
4191
4192     export VERSION
4193     [myver=$($AWK 'BEGIN {
4194       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
4195       if(length(vsplit [1]) > 4) {
4196         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
4197       }
4198       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
4199     }')]
4200
4201     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
4202
4203     if test x$host_darwin = xyes; then
4204       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
4205     fi
4206
4207         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
4208            enable_system_aot=yes
4209         fi
4210
4211     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
4212       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
4213     fi
4214
4215     if test x$DISABLE_MCS_DOCS = xyes; then
4216       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
4217     fi
4218
4219     if test x$has_extension_module != xno; then
4220         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
4221     fi
4222     
4223     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
4224     
4225     if test "x$test_bcl_opt" = "xyes"; then    
4226       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
4227     fi
4228
4229     if test "x$MONO_LLVMONLY" = "xyes" ; then
4230       echo "MONO_LLVMONLY = 1" >> $srcdir/$mcsdir/build/config.make
4231     fi
4232
4233   fi
4234
4235 )
4236
4237 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
4238
4239 echo "
4240         mcs source:    $mcsdir
4241
4242    Engine:
4243         Host:          $host
4244         Target:        $target
4245         GC:            $gc_msg 
4246         TLS:           $with_tls
4247         SIGALTSTACK:   $with_sigaltstack
4248         Engine:        $jit_status
4249         BigArrays:     $enable_big_arrays
4250         DTrace:        $enable_dtrace
4251         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
4252
4253    Libraries:
4254         .NET 4.x:        $with_profile4_x
4255         Xamarin.Android: $with_monodroid
4256         Xamarin.iOS:     $with_monotouch
4257         Xamarin.WatchOS: $with_monotouch_watch
4258         Xamarin.TVOS:    $with_monotouch_tv
4259         Xamarin.Mac:     $with_xammac
4260         mobile_static:   $with_mobile_static
4261         JNI support:     $jdk_headers_found
4262         libgdiplus:      $libgdiplus_msg
4263         zlib:            $zlib_msg
4264         $disabled
4265 "
4266 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
4267    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
4268 fi