[wasm] Hack around AC_CHECK_SIZEOF bug and don't hardcode -Os in CFLAGS
[mono.git] / configure.ac
1 # Process this file with autoconf to produce a configure script.
2 #AC_PREREQ([2.62])
3
4 AC_INIT(mono, [5.7.0],
5         [http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono])
6
7 AC_CONFIG_SRCDIR([README.md])
8 AC_CONFIG_MACRO_DIR([m4])
9 AC_CANONICAL_SYSTEM
10 AC_CANONICAL_HOST
11
12 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
13 # The extra brackets are to foil regex-based scans.
14 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
15
16 AM_INIT_AUTOMAKE([1.9 dist-bzip2 tar-ustar no-dist-gzip foreign subdir-objects]
17                  m4_esyscmd([case `automake --version | head -n 1` in    # parallel-tests is default in automake 1.13+, we need to explicitly enable it
18                              *1.11*|*1.12*) echo parallel-tests;;        # for 1.11 and 1.12 but not below as those versions don't recognize the flag
19                              esac]))                                     # TODO: remove this hack once we require automake 1.11+
20
21 AC_CONFIG_HEADERS([config.h])
22 AM_MAINTAINER_MODE
23
24 API_VER=2.0
25 AC_SUBST(API_VER)
26
27 AC_PROG_LN_S
28
29 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
30
31 MONO_VERSION_MAJOR=`echo $VERSION | cut -d . -f 1`
32 MONO_VERSION_MINOR=`echo $VERSION | cut -d . -f 2`
33 MONO_VERSION_BUILD=`echo $VERSION | cut -d . -f 3`
34
35 # This is the version number of the corlib-runtime interface. When
36 # making changes to this interface (by changing the layout
37 # of classes the runtime knows about, changing icall signature or
38 # semantics etc), increment this variable.
39 #
40 # This can be reset to 0 when Mono's version number is bumped
41 # since it's part of the corlib version (the prefix '1' in the full
42 # version number is to ensure the number isn't treated as octal in C)
43 MONO_CORLIB_COUNTER=0
44 MONO_CORLIB_VERSION=`printf "1%02d%02d%02d%03d" $MONO_VERSION_MAJOR $MONO_VERSION_MINOR $MONO_VERSION_BUILD $MONO_CORLIB_COUNTER`
45
46 AC_DEFINE_UNQUOTED(MONO_CORLIB_VERSION,$MONO_CORLIB_VERSION,[Version of the corlib-runtime interface])
47 AC_SUBST(MONO_CORLIB_VERSION)
48
49 case $host_os in
50 *cygwin* )
51                  echo "Run configure using ./configure --host=i686-pc-mingw32"
52                  exit 1
53 esac
54
55 # In case of cygwin, override LN_S, irrespective of what it determines.
56 # The build uses cygwin, but the actual runtime doesn't.
57 case $host_os in
58 *cygwin* ) LN_S='cp -p';;
59 esac
60
61 #
62 # libgc defaults
63 #
64 libgc_configure_args=
65
66 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
67 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
68 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
69 CFLAGS_FOR_LIBGC=$CFLAGS
70 CPPFLAGS_FOR_BTLS=$CPPFLAGS
71 CFLAGS_FOR_BTLS=$CFLAGS
72
73 # libgc uses some deprecated APIs
74 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
75
76 #
77 # These are the flags that need to be stored in the mono.pc file for 
78 # compiling code that will embed Mono
79 #
80 libmono_cflags=""
81 libmono_ldflags=""
82 AC_SUBST(libmono_cflags)
83 AC_SUBST(libmono_ldflags)
84
85 # Variable to have relocatable .pc files (lib, or lib64)
86 # realpath isn't always available, and requires that all but the tip of the provided
87 # path exists. Fall back to the old behaviour, but realpath allows depth >1
88 # e.g. Debian puts Mono in /usr/bin and libs in /usr/lib/x86_64-linux-gnu/ which is
89 # too deep for the old method to work
90 reloc_libdir=`realpath --relative-to=${prefix} ${libdir} 2> /dev/null || basename ${libdir}`
91 AC_SUBST(reloc_libdir)
92
93 # Set to yes if Unix sockets cannot be created in an anonymous namespace
94 need_link_unlink=no
95
96 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
97 extra_runtime_ldflags=""
98
99
100 # Hack for WASM
101 # Current autotools (v1.15) doesn't have a triplet we can use for wasm so the kludge we do is to
102 # work around it by using a feature flag instead
103 AC_ARG_ENABLE(wasm,[  --enable-wasm     Hack to set the current runtime to target wasm], enable_wasm=$enableval)
104
105 # Thread configuration inspired by sleepycat's db
106 AC_MSG_CHECKING([host platform characteristics])
107
108 libgc_threads=no
109 has_dtrace=no
110 parallel_mark=yes
111 ikvm_native=yes
112
113 host_win32=no
114 target_win32=no
115 platform_android=no
116 host_darwin=no
117
118
119 if test "x$enable_wasm" = "xyes"; then
120 CFLAGS="$CFLAGS -D_REENTRANT -D_GNU_SOURCE -DNO_UNALIGNED_ACCESS -s WASM=1"
121 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DUSE_MMAP -D_GNU_SOURCE -DNO_UNALIGNED_ACCESS -s WASM=1"
122 libdl="-ldl"
123 libgc_threads=pthreads
124
125 else
126
127 case "$host" in
128         *-mingw*|*-*-cygwin*)
129                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
130                 AC_DEFINE(HOST_NO_SYMLINKS,1,[This platform does not support symlinks])
131                 host_win32=yes
132                 mono_cv_clang=no
133                 if test "x$cross_compiling" = "xno"; then
134                         if test "x$host" = "x$build" -a "x$host" = "x$target"; then
135                                 target_win32=yes
136                         fi
137                 else
138                         if test "x$host" = "x$target"; then
139                                 target_win32=yes
140                         fi
141                 fi
142                 HOST_CC="gcc"
143                 # Windows Vista or later is required
144                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -D_WIN32_WINNT=0x0600 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
145                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi"
146                 libmono_cflags="-mms-bitfields -mwindows"
147                 libmono_ldflags="-mms-bitfields -mwindows"
148                 libdl=
149                 libgc_threads=win32
150                 with_sigaltstack=no
151                 with_tls=pthread
152                 with_sgen_default_concurrent=yes
153                 LN_S=cp
154                 # This forces libgc to use the DllMain based thread registration code on win32
155                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
156                 ;;
157         *-*-*netbsd*)
158                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
159                 libmono_cflags="-D_REENTRANT"
160                 LDFLAGS="$LDFLAGS -pthread"
161                 CPPFLAGS="$CPPFLAGS -DHOST_BSD"
162                 libmono_ldflags="-pthread"
163                 need_link_unlink=yes
164                 libdl="-ldl"
165                 libgc_threads=pthreads
166                 with_sigaltstack=no
167                 use_sigposix=yes
168                 with_sgen_default_concurrent=yes
169                 ;;
170         *-*-kfreebsd*-gnu)
171                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
172                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
173                 libmono_ldflags="-lpthread -pthread"
174                 libdl="-ldl"
175                 libgc_threads=pthreads
176                 need_link_unlink=yes
177                 with_sigaltstack=no
178                 use_sigposix=yes
179                 with_sgen_default_concurrent=yes
180                 ;;
181         *-*-*freebsd*)
182                 if test "x$PTHREAD_CFLAGS" = "x"; then
183                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
184                         libmono_cflags=
185                 else
186                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
187                         libmono_cflags="$PTHREAD_CFLAGS"
188                 fi
189                 if test "x$PTHREAD_LIBS" = "x"; then
190                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
191                         libmono_ldflags="-pthread"
192                 else
193                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
194                         libmono_ldflags="$PTHREAD_LIBS"
195                 fi
196                 CPPFLAGS="$CPPFLAGS -DHOST_BSD"
197                 need_link_unlink=yes
198                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
199                 libdl=
200                 libgc_threads=pthreads
201                 use_sigposix=yes
202                 has_dtrace=yes
203                 with_sgen_default_concurrent=yes
204                 ;;
205         *-*-*openbsd*)
206                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DHOST_BSD -D_REENTRANT -DUSE_MMAP"
207                 if test "x$disable_munmap" != "xyes"; then
208                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
209                 fi
210                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
211                 LDFLAGS="$LDFLAGS -pthread"
212                 need_link_unlink=yes
213                 AC_DEFINE(PTHREAD_POINTER_ID)
214                 libdl=
215                 libgc_threads=pthreads
216                 with_sigaltstack=no
217                 use_sigposix=yes
218                 with_sgen_default_concurrent=yes
219                 ;;
220         *-*-linux-android*)
221                 platform_android=yes
222                 AC_DEFINE(HOST_ANDROID,1,[Targeting the Android platform])
223                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
224
225                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
226                 if test "x$disable_munmap" != "xyes"; then
227                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
228                 fi
229                 libmono_cflags="-D_REENTRANT"
230                 libdl="-ldl"
231                 libgc_threads=pthreads
232                 use_sigposix=yes
233
234                 with_tls=pthread
235                 with_sigaltstack=no
236                 with_static_mono=no
237
238                 # Android doesn't support boehm, as it's missing <link.h>
239                 support_boehm=no
240                 with_gc=sgen
241
242                 # isinf(3) requires -lm; see isinf check below
243                 LDFLAGS="$LDFLAGS -lm"
244
245                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
246                 # PAGE_SIZE; breaks mono/io-layer/collection.c
247                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
248                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
249                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
250
251                 # to bypass the underscore linker check, can't work when cross-compiling
252                 mono_cv_uscore=yes
253                 mono_cv_clang=no
254                 ;;
255         *-*-linux*)
256                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
257                 if test "x$disable_munmap" != "xyes"; then
258                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
259                 fi
260                 libmono_cflags="-D_REENTRANT"
261                 libdl="-ldl"
262                 libgc_threads=pthreads
263                 use_sigposix=yes
264                 if test "x$cross_compiling" != "xno"; then
265                         # to bypass the underscore linker check, not
266                         # available during cross-compilation
267                         mono_cv_uscore=no
268                 fi
269                 case "$host" in
270                 aarch64-*)
271                         support_boehm=no
272                         with_gc=sgen
273                         ;;
274                 powerpc*-*-linux*)
275                         # https://bugzilla.novell.com/show_bug.cgi?id=504411
276                         disable_munmap=yes
277                         ;;
278                 esac
279                 with_sgen_default_concurrent=yes
280                 ;;
281         *-*-nacl*)
282                 echo "nacl no longer supported."
283                 exit 1
284                 ;;
285         *-*-hpux*)
286                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
287                 # +ESdbgasm only valid on bundled cc on RISC
288                 # silently ignored for ia64
289                 if test $GCC != "yes"; then
290                         CFLAGS="$CFLAGS +ESdbgasm"
291                         # Arrange for run-time dereferencing of null
292                         # pointers to produce a SIGSEGV signal.
293                         LDFLAGS="$LDFLAGS -z"
294                 fi
295                 CFLAGS="$CFLAGS +ESdbgasm"
296                 LDFLAGS="$LDFLAGS -z"
297                 libmono_cflags="-D_REENTRANT"
298                 libmono_ldflags="-lpthread"
299                 libgc_threads=pthreads
300                 need_link_unlink=yes
301                 use_sigposix=yes
302                 ;;
303         *-*-solaris*)
304                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DHOST_SOLARIS"
305                 need_link_unlink=yes
306                 libmono_cflags="-D_REENTRANT"
307                 libgc_threads=pthreads
308                 has_dtrace=yes
309                 use_sigposix=yes
310                 enable_solaris_tar_check=yes
311                 ;;
312         *-*-darwin*)
313                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
314                 host_darwin=yes
315                 target_mach=yes
316                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_MACOSX_THREADS -DUSE_MMAP -DUSE_MUNMAP"
317                 libmono_cflags="-D_THREAD_SAFE"
318                 need_link_unlink=yes
319                 AC_DEFINE(PTHREAD_POINTER_ID)
320                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
321                 libdl=
322                 libgc_threads=pthreads
323                 has_dtrace=yes
324                 if test "x$cross_compiling" = "xyes"; then
325                         has_broken_apple_cpp=yes
326                 fi
327                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
328                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
329                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
330                 case "$host" in
331                         dnl Snow Leopard and newer config.guess reports as this
332                         i*86-*-darwin*)
333                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
334                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
335                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
336                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
337                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
338                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
339                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
340                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
341                                 with_sgen_default_concurrent=yes
342                                 ;;
343                         x*64-*-darwin*)
344                                 with_sgen_default_concurrent=yes
345                                 ;;
346                         arm*-darwin*)
347                                 has_dtrace=no
348                                 ;;                      
349                 esac
350                 ;;
351         *-*-haiku*)
352                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
353                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
354                 libdl=
355                 LIBS="$LIBS -lnetwork -ltextencoding"
356                 need_link_unlink=yes
357                 AC_DEFINE(PTHREAD_POINTER_ID)
358                 dnl Haiku does not support static TLS with __thread
359                 with_tls=pthread
360                 dnl Boehm is too much work to backport Haiku support for
361                 support_boehm=no
362                 libgc_threads=pthreads
363                 use_sigposix=yes
364                 ;;
365         *)
366                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
367                 libdl="-ldl"
368                 ;;
369 esac
370
371 # WASM hack
372 fi
373
374 AC_MSG_RESULT(ok)
375
376 if test x$need_link_unlink = xyes; then
377    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
378 fi
379
380 if test x$host_win32 = xyes; then
381    AC_DEFINE(HOST_WIN32, 1, [Host Platform is Win32])
382 fi
383
384 if test x$target_win32 = xyes; then
385    AC_DEFINE(TARGET_WIN32, 1, [Target Platform is Win32])
386 fi
387
388 if test x$host_darwin = xyes; then
389    AC_DEFINE(HOST_DARWIN, 1, [Host Platform is Darwin])
390 fi
391
392 # Defined for all targets/platforms using classic Windows API support.
393 AC_DEFINE(HAVE_CLASSIC_WINAPI_SUPPORT, 1, [Use classic Windows API support])
394 AC_DEFINE(HAVE_UWP_WINAPI_SUPPORT, 0, [Don't use UWP Windows API support])
395
396 AC_SUBST(extra_runtime_ldflags)
397 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
398 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
399 AM_CONDITIONAL(HOST_LINUX, echo x$target_os | grep -q linux)
400 AM_CONDITIONAL(HOST_DARWIN, test x$host_darwin = xyes)
401 AM_CONDITIONAL(HOST_SIGPOSIX, test x$use_sigposix = xyes)
402 AM_CONDITIONAL(HOST_ANDROID, test x$platform_android = xyes)
403
404 if test -z "$HOST_DARWIN_TRUE"; then :
405 PLATFORM_AOT_SUFFIX=.dylib
406 fi
407
408 if test -z "$HOST_LINUX_TRUE"; then :
409 PLATFORM_AOT_SUFFIX=.so
410 fi
411
412 if test -z "$HOST_WIN32_TRUE"; then :
413 PLATFORM_AOT_SUFFIX=.dll
414 fi
415
416 AC_SUBST(PLATFORM_AOT_SUFFIX)
417
418 ## PLATFORM_AOT_SUFFIX not so simple for windows :-)
419
420 AC_CHECK_TOOL(CC, gcc, gcc)
421 AC_PROG_CC
422 AC_CHECK_TOOL(CXX, g++, g++)
423 AC_PROG_CXX
424 AM_PROG_AS
425 AC_PROG_INSTALL
426 AC_PROG_AWK
427 AM_PROG_CC_C_O
428 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
429 : ${CCAS='$(CC)'}
430 # Set ASFLAGS if not already set.
431 : ${CCASFLAGS='$(CFLAGS)'}
432 AC_SUBST(CCAS)
433 AC_SUBST(CCASFLAGS)
434
435 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
436 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
437 if test "x$CXX" = "xg++"; then
438         if test "x$GXX" != "xyes"; then
439                 # automake/libtool is so broken, it requires g++ even if the c++ sources
440                 # are inside automake conditionals
441                 AC_MSG_ERROR([You need to install g++])
442         fi
443 fi
444
445 dnl may require a specific autoconf version
446 dnl AC_PROG_CC_FOR_BUILD
447 dnl CC_FOR_BUILD not automatically detected
448 CC_FOR_BUILD=$CC
449 CFLAGS_FOR_BUILD=$CFLAGS
450 BUILD_EXEEXT=
451 if test "x$cross_compiling" = "xyes"; then
452         CC_FOR_BUILD=cc
453         CFLAGS_FOR_BUILD=
454         BUILD_EXEEXT=""
455 fi
456 AC_SUBST(CC_FOR_BUILD)
457 AC_SUBST(CFLAGS_FOR_BUILD)
458 AC_SUBST(HOST_CC)
459 AC_SUBST(BUILD_EXEEXT)
460
461 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
462 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
463
464 # Set STDC_HEADERS
465 AC_HEADER_STDC
466 AC_LIBTOOL_WIN32_DLL
467 # This causes monodis to not link correctly
468 #AC_DISABLE_FAST_INSTALL
469
470 #lookup makedev() header
471 AC_HEADER_MAJOR
472
473 AM_PROG_LIBTOOL
474 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
475 DOLT
476
477 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
478 AC_SUBST(export_ldflags)
479
480 # Test whenever ld supports -version-script
481 AC_PROG_LD
482 AC_PROG_LD_GNU
483
484 AM_ICONV()
485
486 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)
487 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)
488 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
489                   [], [], [#include <stddef.h>
490                   #include <sys/socket.h>
491                   #include <linux/socket.h>])
492
493 AC_CHECK_HEADERS(sys/user.h, [], [],
494 [
495 #ifdef HAVE_SYS_PARAM_H
496 # include <sys/param.h>
497 #endif
498 ])
499
500 AC_CHECK_HEADERS(linux/serial.h)
501
502 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
503 if test x$have_zlib = xyes; then
504    AC_TRY_COMPILE([#include <zlib.h>], [
505    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
506    return 0;
507    #else
508    #error No good zlib found
509    #endif
510    ],[
511         AC_MSG_RESULT(Using system zlib)
512         zlib_msg="system zlib"
513         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
514    ],[
515         AC_MSG_RESULT(Using embedded zlib)
516         have_zlib=no
517         zlib_msg="bundled zlib"
518    ])
519 fi
520
521 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
522 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
523
524 # for mono/metadata/debug-symfile.c
525 AC_CHECK_HEADERS(elf.h)
526
527 # for support
528 AC_CHECK_HEADERS(poll.h)
529 AC_CHECK_HEADERS(sys/poll.h)
530 AC_CHECK_HEADERS(sys/wait.h)
531 AC_CHECK_HEADERS(grp.h)
532 AC_CHECK_HEADERS(syslog.h)
533
534 # for mono/dis
535 AC_CHECK_HEADERS(wchar.h)
536 AC_CHECK_HEADERS(ieeefp.h)
537 AC_MSG_CHECKING(for isinf)
538 AC_TRY_LINK([#include <math.h>], [
539         int f = isinf (1.0);
540 ], [
541         AC_MSG_RESULT(yes)
542         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
543 ], [
544         # We'll have to use signals
545         AC_MSG_RESULT(no)
546 ])
547 # mingw
548 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
549         AC_TRY_LINK([#include <math.h>], 
550         [ _finite(0.0); ], 
551         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
552         AC_MSG_RESULT(no)))
553
554 # for Linux statfs support
555 AC_CHECK_HEADERS(linux/magic.h)
556
557 # not 64 bit clean in cross-compile
558 if test "x$enable_wasm" = "xyes"; then
559 AC_DEFINE(SIZEOF_VOID_P,4)
560 AC_DEFINE(SIZEOF_LONG,4)
561 ac_cv_sizeof_void_p="4"
562 ac_cv_sizeof_long="4"
563 else
564 AC_CHECK_SIZEOF(void *)
565 AC_CHECK_SIZEOF(long)
566 fi
567
568 AC_CHECK_SIZEOF(int)
569 AC_CHECK_SIZEOF(long long)
570
571 AC_CACHE_CHECK([for clang],
572         mono_cv_clang,[
573         AC_TRY_COMPILE([], [
574                 #ifdef __clang__
575                 #else
576                 #error "FAILED"
577                 #endif
578                 return 0;
579         ],
580         [mono_cv_clang=yes],
581         [mono_cv_clang=no],
582         [])
583 ])
584
585 AC_ARG_ENABLE(visibility-hidden,
586 [  --disable-visibility-hidden    disable usage of -fvisiblity=hidden],
587    disable_visibility_hidden=yes, disable_visibility_hidden=no)
588
589 WARN=''
590 if test x"$GCC" = xyes; then
591         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 -Wno-format-zero-length'
592
593                 # We require C99 with some GNU extensions, e.g. `linux` macro
594                 CFLAGS="$CFLAGS -std=gnu99"
595
596                 # The runtime code does not respect ANSI C strict aliasing rules
597                 CFLAGS="$CFLAGS -fno-strict-aliasing"
598
599                 # We rely on signed overflow to behave
600                 CFLAGS="$CFLAGS -fwrapv"
601
602                 CFLAGS="$CFLAGS -DMONO_DLL_EXPORT"
603                 if test x"$disable_visibility_hidden" = xno; then
604                    # Don't export any symbols by default
605                    SHARED_CFLAGS="-fvisibility=hidden"
606                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
607                 fi
608
609                 ORIG_CFLAGS=$CFLAGS
610                 # Check for the normal version, since gcc ignores unknown -Wno options
611                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
612                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
613                 AC_TRY_COMPILE([],[
614                                 return 0;
615                 ], [
616                    AC_MSG_RESULT(yes)
617                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
618                 ], [
619                    AC_MSG_RESULT(no)
620                    CFLAGS=$ORIG_CFLAGS
621                 ])
622
623                 if test "x$mono_cv_clang" = "xyes"; then
624                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
625                    WARN="$WARN -Qunused-arguments"
626                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign -Wno-return-stack-address -Wno-constant-logical-operand"
627                    # We rely on zero length arrays in structs
628                    WARN="$WARN -Wno-zero-length-array"
629                 fi
630 else
631         # The Sun Forte compiler complains about inline functions that access static variables
632         # so disable all inlining.
633         case "$host" in
634         *-*-solaris*)
635                 CFLAGS="$CFLAGS -Dinline="
636                 ;;
637         esac
638 fi
639 CFLAGS="$CFLAGS -g $WARN"
640 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
641 CPPFLAGS="$CPPFLAGS -g $WARN"
642
643 # Where's the 'mcs' source tree?
644 if test -d $srcdir/mcs; then
645   mcsdir=mcs
646 else
647   mcsdir=../mcs
648 fi
649
650 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
651         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
652                 mcsdir=$with_mcs_path
653         fi
654 )
655
656 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
657
658 #
659 # A sanity check to catch cases where the package was unpacked
660 # with an ancient tar program (Solaris)
661 #
662 AC_ARG_ENABLE(solaris-tar-check,
663 [  --disable-solaris-tar-check    disable solaris tar check],
664    do_solaris_tar_check=no, do_solaris_tar_check=yes)
665
666 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
667         AC_MSG_CHECKING(integrity of package)
668         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
669         then
670                 AC_MSG_RESULT(ok)
671         else
672                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
673                 AC_MSG_ERROR([$errorm])
674         fi
675 fi
676
677 if test "x$with_mcs_path" != "x"; then
678 mcs_topdir=$(cd "$mcsdir" && pwd)
679 mcs_topdir_from_srcdir=$mcs_topdir
680 else
681 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
682 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
683 fi
684
685 # Convert mcs_topdir* paths to Windows syntax.
686 if test x$cross_compiling$host_win32 = xnoyes; then
687   mcs_topdir=$(cygpath -m $mcs_topdir)
688   case $mcs_topdir_from_srcdir in
689     /cygdrive/*)
690         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
691         ;;
692   esac
693 fi
694
695 AC_SUBST([mcs_topdir])
696 AC_SUBST([mcs_topdir_from_srcdir])
697
698 # gettext: prepare the translation directories. 
699 # we do not configure the full gettext, as we consume it dynamically from C#
700 AM_PO_SUBDIRS
701
702 if test "x$USE_NLS" = "xyes"; then
703    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
704
705    if test "x$HAVE_MSGFMT" = "xno"; then
706           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
707    fi
708 fi
709
710 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
711
712 pkg_config_path=
713 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
714         if test x$with_crosspkgdir = "x"; then
715                 if test -s $PKG_CONFIG_PATH; then
716                         pkg_config_path=$PKG_CONFIG_PATH
717                 fi
718         else
719                 pkg_config_path=$with_crosspkgdir
720                 PKG_CONFIG_PATH=$pkg_config_path
721                 export PKG_CONFIG_PATH
722         fi
723 )
724
725 AC_CHECK_PROG(ninja, ninja, yes, no)
726 AM_CONDITIONAL(NINJA, test x$ninja != xno)
727
728 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
729 if test x$werror_flag = xyes; then
730         WERROR_CFLAGS="-Werror"
731 fi
732 AC_SUBST([WERROR_CFLAGS])
733 AC_SUBST([SHARED_CFLAGS])
734
735 GLIB_CFLAGS='-I$(top_srcdir)/mono/eglib -I$(top_builddir)/mono/eglib'
736 GLIB_LIBS='$(top_builddir)/mono/eglib/libeglib.la -lm'
737   
738 AC_SUBST(GLIB_CFLAGS)
739 AC_SUBST(GLIB_LIBS)
740
741 # Enable support for fast thread-local storage
742 # Some systems have broken support, so we allow to disable it.
743 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
744
745 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
746 # This does not work on some platforms (bug #55253)
747 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
748
749 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
750 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
751 # Same as --with-shared_mono=no
752 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
753
754 if test "x$enable_static" = "xno"; then
755    with_static_mono=no
756 fi
757
758 if test "x$enable_shared" = "xno"; then
759    with_shared_mono=no
760 fi
761
762 if test "x$enable_libraries" = "xno"; then
763    with_shared_mono=no
764 fi
765
766 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
767
768 if test "x$host_win32" = "xyes"; then
769    # Boehm GC requires the runtime to be in its own dll
770    with_static_mono=no
771 fi
772
773 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
774 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
775 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
776
777 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
778 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
779         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
780         ORIG_CFLAGS=$CFLAGS
781         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
782         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
783         AC_TRY_COMPILE([], [
784                 return 0;
785         ], [
786            AC_MSG_RESULT(yes)
787            # Pass it to libgc as well
788            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
789         ], [
790            AC_MSG_RESULT(no)
791            CFLAGS=$ORIG_CFLAGS
792         ])
793 fi
794
795 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
796
797 if test x$enable_small_config = xyes; then
798         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
799         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
800 fi
801
802 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=$enableval, enable_system_aot=default)
803
804 DISABLED_FEATURES=none
805 csc_compiler=default
806 endian=unknown
807 AC_C_BIGENDIAN([endian=big],[endian=little],[endian=unknown])
808 AC_MSG_CHECKING([CSharp compiler to use])
809 AC_ARG_WITH(csc, [  --with-csc=mcs,roslyn,default      Configures the CSharp compiler to use],[
810    if test x$withval = xmcs; then
811        csc_compiler=mcs
812    elif test x$withval = xroslyn; then
813        csc_compiler=roslyn
814    elif test x$withval = xdefault; then
815        :
816    else
817        AC_MSG_ERROR([You must supply one of "mcs", "roslyn" or "default" to the --with-csc option])
818    fi
819 ],[csc_compiler=default])
820
821 if test $csc_compiler = default; then
822    if test $endian = big; then
823       csc_compiler=mcs
824    elif test $endian = little; then
825       case "$host" in
826         powerpc*) csc_compiler=mcs ;;
827         *) csc_compiler=roslyn ;;
828       esac
829    else
830       csc_compiler=mcs
831    fi
832 fi
833 AC_MSG_RESULT($csc_compiler)
834
835 #
836 # Set the build profiles and options before things which use them
837 #
838
839 AC_ARG_WITH(profile4_x,          [  --with-profile4_x=yes,no            If you want to install the 4.x FX (defaults to yes)],                       [], [with_profile4_x=default])
840 AC_ARG_WITH(monodroid,           [  --with-monodroid=yes,no             If you want to build the MonoDroid assemblies (defaults to no)],            [], [with_monodroid=default])
841 AC_ARG_WITH(monotouch,           [  --with-monotouch=yes,no             If you want to build the Xamarin.iOS assemblies (defaults to no)],          [], [with_monotouch=default])
842 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])
843 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])
844 AC_ARG_WITH(bitcode,             [  --with-bitcode=yes,no               If bitcode is enabled (defaults to no)],                                    [], [with_bitcode=default])
845 AC_ARG_WITH(xammac,              [  --with-xammac=yes,no                If you want to build the Xamarin.Mac assemblies (defaults to no)],          [], [with_xammac=default])
846 AC_ARG_WITH(testing_aot_hybrid,  [  --with-testing_aot_hybrid=yes,no    If you want to build the testing_aot_hybrid assemblies (defaults to no)],   [], [with_testing_aot_hybrid=default])
847 AC_ARG_WITH(testing_aot_full,    [  --with-testing_aot_full=yes,no      If you want to build the testing_aot_full assemblies (defaults to no)],     [], [with_testing_aot_full=default])
848 AC_ARG_WITH(winaot,              [  --with-winaot=yes,no                If you want to build the Windows friendly AOT assemblies (defaults to no)], [], [with_winaot=default])
849 AC_ARG_WITH(orbis,               [  --with-orbis=yes,no                 If you want to build the Orbis assemblies (defaults to no)], [], [with_orbis=default])
850 AC_ARG_WITH(unreal,              [  --with-unreal=yes,no                If you want to build the Unreal assemblies (defaults to no)], [], [with_unreal=default])
851
852
853 AC_ARG_WITH(runtime_preset, [  --with-runtime_preset=net_4_x,all,aot,hybridaot,fullaot,bitcode,unreal   Which default profile to build (defaults to net_4_x)],  [], [with_runtime_preset=net_4_x])
854
855 dnl
856 dnl Profile defaults
857 dnl
858 TEST_PROFILE=default
859 enable_llvm_default=no
860
861 with_profile4_x_default=no
862 with_monodroid_default=no
863 with_monotouch_default=no
864 with_monotouch_watch_default=no
865 with_monotouch_tv_default=no
866 with_xammac_default=no
867 with_testing_aot_hybrid_default=no
868 with_testing_aot_full_default=no
869 with_winaot_default=no
870 with_orbis_default=no
871 with_unreal_default=no
872
873 with_bitcode_default=no
874 with_cooperative_gc_default=no
875
876 INVARIANT_AOT_OPTIONS=nimt-trampolines=2000,ntrampolines=8000,nrgctx-fetch-trampolines=256,ngsharedvt-trampolines=4000
877
878 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
879    DISABLE_MCS_DOCS_default=yes
880 elif test x$with_runtime_preset = xnet_4_x; then
881    with_profile4_x_default=yes
882 elif test x$with_runtime_preset = xall; then
883    with_profile4_x_default=yes
884    with_monodroid_default=yes
885    with_monotouch_default=yes
886    with_monotouch_watch_default=yes
887    with_monotouch_tv_default=yes
888    with_xammac_default=yes
889    with_winaot_default=yes
890    with_orbis_default=yes
891    with_unreal_default=yes
892 elif test x$with_runtime_preset = xfullaot; then
893    DISABLE_MCS_DOCS_default=yes
894    with_testing_aot_full_default=yes
895    TEST_PROFILE=testing_aot_full
896
897    mono_feature_disable_com='yes'
898    mono_feature_disable_remoting='yes'
899    mono_feature_disable_reflection_emit_save='yes'
900    mono_feature_disable_reflection_emit='yes'
901    mono_feature_disable_appdomains='yes'
902
903    AOT_BUILD_FLAGS="--runtime=mobile -O=gsharedvt --aot=full,$INVARIANT_AOT_OPTIONS"
904
905    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
906 elif test x$with_runtime_preset = xbitcode; then
907    DISABLE_MCS_DOCS_default=yes
908    with_testing_aot_full_default=yes
909    with_bitcode_default=yes
910    with_cooperative_gc_default=yes
911    TEST_PROFILE=testing_aot_full
912    enable_llvm_default=yes
913
914    mono_feature_disable_com='yes'
915    mono_feature_disable_remoting='yes'
916    mono_feature_disable_reflection_emit_save='yes'
917    mono_feature_disable_reflection_emit='yes'
918    mono_feature_disable_appdomains='yes'
919
920    AOT_BUILD_FLAGS="--runtime=mobile --aot=llvmonly,$INVARIANT_AOT_OPTIONS"
921    AOT_RUN_FLAGS="--runtime=mobile --llvmonly"
922 elif test x$with_runtime_preset = xhybridaot; then
923    DISABLE_MCS_DOCS_default=yes
924    with_testing_aot_hybrid_default=yes
925    TEST_PROFILE=testing_aot_hybrid 
926
927    AOT_BUILD_FLAGS="--runtime=mobile --aot=hybrid,$INVARIANT_AOT_OPTIONS"
928    AOT_RUN_FLAGS="--runtime=mobile --hybrid-aot"
929 elif test x$with_runtime_preset = xaot; then
930    with_profile4_x_default=yes
931
932    AOT_BUILD_FLAGS="--aot=$INVARIANT_AOT_OPTIONS"
933    AOT_RUN_FLAGS=""
934
935    DISABLE_MCS_DOCS_default=yes
936 elif test x$with_runtime_preset = xwinaot; then
937    DISABLE_MCS_DOCS_default=yes
938    with_winaot_default=yes
939    TEST_PROFILE=winaot
940
941    mono_feature_disable_com='yes'
942    mono_feature_disable_remoting='yes'
943    mono_feature_disable_reflection_emit_save='yes'
944    mono_feature_disable_reflection_emit='yes'
945    mono_feature_disable_appdomains='yes'
946
947    AOT_BUILD_FLAGS="--runtime=mobile --aot=full,$INVARIANT_AOT_OPTIONS"
948    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
949 elif test x$with_runtime_preset = xorbis; then
950    DISABLE_MCS_DOCS_default=yes
951    with_orbis_default=yes
952    TEST_PROFILE=orbis
953
954    mono_feature_disable_com='yes'
955    mono_feature_disable_remoting='yes'
956    mono_feature_disable_reflection_emit_save='yes'
957    mono_feature_disable_reflection_emit='yes'
958    mono_feature_disable_appdomains='yes'
959
960    AOT_BUILD_FLAGS="--runtime=mobile --aot=full,$INVARIANT_AOT_OPTIONS"
961    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
962 elif test x$with_runtime_preset = xunreal; then
963    DISABLE_MCS_DOCS_default=yes
964    with_unreal_default=yes
965    TEST_PROFILE=unreal
966
967    mono_feature_disable_com='yes'
968    mono_feature_disable_remoting='yes'
969    mono_feature_disable_appdomains='no'
970
971    AOT_BUILD_FLAGS="--runtime=mobile --aot=hybrid,$INVARIANT_AOT_OPTIONS"
972    AOT_RUN_FLAGS="--runtime=mobile --hybrid-aot"
973 else
974    with_profile4_x_default=yes
975 fi
976
977 if test "x$AOT_BUILD_FLAGS" != "x"; then :
978    AC_SUBST(AOT_BUILD_FLAGS)
979    AC_SUBST(AOT_RUN_FLAGS)
980    # For llvmonlycheck + fullaotcheck
981    AC_SUBST(INVARIANT_AOT_OPTIONS)
982 fi
983
984 AC_SUBST(TEST_PROFILE)
985
986 if test "x$with_profile4_x" = "xdefault"; then
987    with_profile4_x=$with_profile4_x_default
988 fi
989 if test "x$with_monodroid" = "xdefault"; then
990    with_monodroid=$with_monodroid_default
991 fi
992 if test "x$with_monotouch" = "xdefault"; then
993    with_monotouch=$with_monotouch_default
994 fi
995 if test "x$with_monotouch_watch" = "xdefault"; then
996    with_monotouch_watch=$with_monotouch_watch_default
997 fi
998 if test "x$with_monotouch_tv" = "xdefault"; then
999    with_monotouch_tv=$with_monotouch_tv_default
1000 fi
1001 if test "x$with_bitcode" = "xdefault"; then
1002    with_bitcode=$with_bitcode_default
1003 fi
1004 if test "x$with_xammac" = "xdefault"; then
1005    with_xammac=$with_xammac_default
1006 fi
1007 if test "x$with_testing_aot_hybrid" = "xdefault"; then
1008    with_testing_aot_hybrid=$with_testing_aot_hybrid_default
1009 fi
1010 if test "x$with_testing_aot_full" = "xdefault"; then
1011    with_testing_aot_full=$with_testing_aot_full_default
1012 fi
1013 if test "x$with_winaot" = "xdefault"; then
1014    with_winaot=$with_winaot_default
1015 fi
1016 if test "x$with_orbis" = "xdefault"; then
1017    with_orbis=$with_orbis_default
1018 fi
1019 if test "x$with_unreal" = "xdefault"; then
1020    with_unreal=$with_unreal_default
1021 fi
1022
1023
1024 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = "xyes"])
1025 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
1026 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
1027 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
1028 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
1029 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
1030 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
1031 AM_CONDITIONAL(INSTALL_TESTING_AOT_HYBRID, [test "x$with_testing_aot_hybrid" != "xno"])
1032 AM_CONDITIONAL(INSTALL_TESTING_AOT_FULL, [test "x$with_testing_aot_full" != "xno"])
1033 AM_CONDITIONAL(INSTALL_WINAOT, [test "x$with_winaot" != "xno"])
1034 AM_CONDITIONAL(INSTALL_ORBIS, [test "x$with_orbis" != "xno"])
1035 AM_CONDITIONAL(INSTALL_UNREAL, [test "x$with_unreal" != "xno"])
1036 AM_CONDITIONAL(FULL_AOT_TESTS, [test "x$TEST_PROFILE" = "xtesting_aot_full"] || [test "x$TEST_PROFILE" = "xwinaot"] || [test "x$TEST_PROFILE" = "xorbis"])
1037 AM_CONDITIONAL(HYBRID_AOT_TESTS, [test "x$TEST_PROFILE" = "xtesting_aot_hybrid"] || [test "x$TEST_PROFILE" = "xunreal"])
1038
1039 default_profile=net_4_x
1040 if test -z "$INSTALL_MONODROID_TRUE"; then :
1041    default_profile=monodroid
1042 fi
1043 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
1044    default_profile=monotouch
1045 fi
1046 if test -z "$INSTALL_XAMMAC_TRUE"; then :
1047    default_profile=xammac
1048 fi
1049 if test -z "$INSTALL_TESTING_AOT_HYBRID_TRUE"; then :
1050    default_profile=testing_aot_hybrid
1051 fi
1052 if test -z "$INSTALL_TESTING_AOT_FULL_TRUE"; then :
1053    default_profile=testing_aot_full
1054 fi
1055 if test -z "$INSTALL_WINAOT_TRUE"; then :
1056    default_profile=winaot
1057 fi
1058 if test -z "$INSTALL_ORBIS_TRUE"; then :
1059    default_profile=orbis
1060 fi
1061 if test -z "$INSTALL_UNREAL_TRUE"; then :
1062    default_profile=unreal
1063 fi
1064 if test -z "$INSTALL_4_x_TRUE"; then :
1065    default_profile=net_4_x
1066 fi
1067 DEFAULT_PROFILE=$default_profile
1068 AC_SUBST(DEFAULT_PROFILE)
1069
1070 #
1071 # End build profile configuration
1072 #
1073
1074 if test x$USE_NLS = xprofile_default; then
1075
1076         AC_MSG_CHECKING([NLS used])
1077
1078         # We make the default value for USE_NLS
1079         # "no" on OSX because it isn't available on most
1080         # default OSX installs. The most common configurations will
1081         # all disable it, so this saves us typing.
1082         if test x$host_darwin = xyes; then
1083                 USE_NLS=no;
1084         else
1085                 USE_NLS=yes;
1086         fi
1087
1088         AC_SUBST([USE_NLS])
1089         AC_MSG_RESULT([$USE_NLS])
1090 fi
1091
1092 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
1093      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
1094      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, desktop_loader, shared_perfcounters, remoting,
1095          security, lldb, mdb, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
1096 [
1097         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
1098                 eval "mono_feature_disable_$feature='yes'"
1099         done
1100         DISABLED_FEATURES=$enable_minimal
1101         disabled="Disabled:      $enable_minimal"
1102 ],[])
1103
1104 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
1105
1106 if test "x$mono_feature_disable_aot" = "xyes"; then
1107         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
1108         enable_system_aot=no
1109         AC_MSG_NOTICE([Disabled AOT compiler])
1110 fi
1111
1112 if test "x$mono_feature_disable_profiler" = "xyes"; then
1113         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
1114         AC_MSG_NOTICE([Disabled support for the profiler])
1115 fi
1116 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
1117
1118 if test "x$mono_feature_disable_decimal" = "xyes"; then
1119         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
1120         AC_MSG_NOTICE([Disabled support for decimal])
1121 fi
1122
1123 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
1124         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
1125         AC_MSG_NOTICE([Disabled support for P/Invoke])
1126 fi
1127
1128 if test "x$mono_feature_disable_debug" = "xyes"; then
1129         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
1130         AC_MSG_NOTICE([Disabled support for runtime debugging])
1131 fi
1132
1133 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
1134         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
1135         mono_feature_disable_reflection_emit_save=yes
1136         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
1137 fi
1138
1139 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
1140         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
1141         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
1142 fi
1143
1144 if test "x$mono_feature_disable_large_code" = "xyes"; then
1145         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
1146         AC_MSG_NOTICE([Disabled support for large assemblies])
1147 fi
1148
1149 if test "x$mono_feature_disable_logging" = "xyes"; then
1150         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
1151         AC_MSG_NOTICE([Disabled support for logging])
1152 fi
1153
1154 if test "x$mono_feature_disable_com" = "xyes"; then
1155         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
1156         AC_MSG_NOTICE([Disabled COM support])
1157 fi
1158
1159 if test "x$mono_feature_disable_ssa" = "xyes"; then
1160         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
1161         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
1162 fi
1163
1164 if test "x$mono_feature_disable_generics" = "xyes"; then
1165         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
1166         AC_MSG_NOTICE([Disabled Generics Support])
1167 fi
1168
1169 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
1170         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
1171         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
1172 fi
1173
1174 if test "x$mono_feature_disable_portability" = "xyes"; then
1175         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
1176         AC_MSG_NOTICE([Disabled IO Portability layer])
1177 fi
1178
1179 if test "x$mono_feature_disable_attach" = "xyes"; then
1180         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
1181         AC_MSG_NOTICE([Disabled agent attach])
1182 fi
1183
1184 if test "x$mono_feature_disable_verifier" = "xyes"; then
1185         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
1186         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
1187 fi
1188
1189 if test "x$mono_feature_disable_jit" = "xyes"; then
1190         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
1191         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
1192 fi
1193
1194 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
1195
1196 if test "x$mono_feature_disable_simd" = "xyes"; then
1197         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
1198         AC_MSG_NOTICE([Disabled SIMD support])
1199 fi
1200
1201 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
1202         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
1203         AC_MSG_NOTICE([Disabled Soft Debugger.])
1204 fi
1205
1206 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
1207         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
1208         AC_MSG_NOTICE([Disabled Performance Counters.])
1209 fi
1210 if test "x$mono_feature_disable_normalization" = "xyes"; then
1211         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
1212         AC_MSG_NOTICE([Disabled String normalization support.])
1213 fi
1214
1215 #TODO: remove assembly_remapping feature name once everyone is using desktop_loader
1216 if test "x$mono_feature_disable_assembly_remapping" = "xyes" || test "x$mono_feature_disable_desktop_loader" = "xyes"; then
1217         AC_DEFINE(DISABLE_DESKTOP_LOADER, 1, [Disable desktop assembly loader semantics.])
1218         AC_MSG_NOTICE([Disabled desktop assembly loader semantics.])
1219 fi
1220
1221 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
1222         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
1223         AC_MSG_NOTICE([Disabled Shared perfcounters.])
1224 fi
1225
1226 if test "x$mono_feature_disable_appdomains" = "xyes"; then
1227         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
1228         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
1229 fi
1230
1231 if test "x$mono_feature_disable_remoting" = "xyes"; then
1232         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
1233         AC_MSG_NOTICE([Disabled remoting])
1234 fi
1235
1236 if test "x$mono_feature_disable_security" = "xyes"; then
1237         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
1238         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
1239 fi
1240
1241 if test "x$mono_feature_disable_lldb" = "xyes"; then
1242         AC_DEFINE(DISABLE_LLDB, 1, [Disable support code for the LLDB plugin.])
1243         AC_MSG_NOTICE([Disabled LLDB plugin support code.])
1244 fi
1245
1246 if test "x$mono_feature_disable_mdb" = "xyes"; then
1247         AC_DEFINE(DISABLE_MDB, 1, [Disable support for .mdb symbol files.])
1248         AC_MSG_NOTICE([Disabled support for .mdb symbol files.])
1249 fi
1250
1251 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
1252         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
1253         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
1254 fi
1255
1256 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
1257         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
1258         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
1259 fi
1260
1261 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
1262         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
1263         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
1264 fi
1265
1266 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
1267         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
1268         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
1269 fi
1270
1271 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
1272         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
1273         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
1274 fi
1275
1276 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
1277 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
1278
1279 has_extension_module=no
1280 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
1281 [
1282         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
1283                 if test x$extension = xdefault ; then
1284                         has_extension_module=yes;
1285                 fi
1286         done
1287         if test x$enable_extension_module = xyes; then
1288                 has_extension_module=yes;
1289         fi
1290 ], [])
1291
1292 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
1293
1294 if test x$has_extension_module != xno ; then
1295         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
1296         AC_MSG_NOTICE([Enabling mono extension module.])
1297 fi
1298
1299 # Deprecated
1300 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
1301
1302 AC_MSG_CHECKING(for visibility __attribute__)
1303 AC_COMPILE_IFELSE([
1304         AC_LANG_SOURCE([[
1305                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
1306                 int main () { doit (); return 0; }
1307         ]])
1308 ], [
1309    have_visibility_hidden=yes
1310    AC_MSG_RESULT(yes)
1311 ], [
1312    have_visibility_hidden=no
1313    AC_MSG_RESULT(no)
1314 ])
1315
1316 dnl
1317 dnl Boehm GC configuration
1318 dnl
1319
1320 AC_ARG_WITH(libgc,   [  --with-libgc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_libgc],[libgc=included])
1321
1322 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1323 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1324
1325 if test "x$support_boehm" = "xyes"; then
1326
1327         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1328         if test x$enable_parallel_mark = xyes; then
1329                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1330         fi
1331
1332         gc_msg=""
1333         LIBGC_CPPFLAGS=
1334         LIBGC_LIBS=
1335         LIBGC_STATIC_LIBS=
1336         libgc_dir=
1337         case "x$libgc" in
1338                 xincluded)
1339                         if test "x$support_boehm" = "xyes"; then
1340                                 libgc_dir=libgc
1341                         fi
1342
1343                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1344                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1345                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1346
1347                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1348
1349                         if test x$target_win32 = xyes; then
1350                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1351                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1352                         fi
1353
1354                         gc_msg="Included Boehm GC with typed GC"
1355                         if test x$enable_parallel_mark = xyes; then
1356                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1357                                 gc_msg="$gc_msg and parallel mark"
1358                         else
1359                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1360                         fi
1361                         ;;
1362
1363                 xboehm|xbohem|xyes)
1364                         AC_MSG_WARN("External Boehm is no longer supported")
1365                         ;;
1366
1367                 xsgen)
1368                         AC_MSG_WARN("Use --with-sgen instead, --with-libgc= controls Boehm configuration")
1369                         ;;
1370
1371                 xnone)
1372                         AC_MSG_WARN("Compiling mono without GC.")
1373                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1374                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1375                         gc_msg="none"
1376                         ;;
1377                 *)
1378                         AC_MSG_ERROR([Invalid argument $libgc to --with-libgc.])
1379                         ;;
1380         esac
1381
1382         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1383         if test "x$large_heap" = "xyes"; then
1384            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1385         fi
1386
1387         AC_SUBST(LIBGC_CPPFLAGS)
1388         AC_SUBST(LIBGC_LIBS)
1389         AC_SUBST(LIBGC_STATIC_LIBS)
1390         AC_SUBST(libgc_dir)
1391         AC_SUBST(BOEHM_DEFINES)
1392
1393 fi
1394 AM_CONDITIONAL(SUPPORT_NULLGC, test "x$libgc" = "xnone")
1395
1396 dnl
1397 dnl End of Boehm GC Configuration
1398 dnl
1399
1400 dnl *************************************
1401 dnl *** Checks for zero length arrays ***
1402 dnl *************************************
1403 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1404 AC_TRY_COMPILE([
1405         struct s {
1406                 int  length;
1407                 char data [0];
1408         };
1409 ], [], [
1410         AC_MSG_RESULT(yes)
1411         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1412 ], [
1413         AC_MSG_RESULT(no)
1414         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1415 ])
1416
1417 dnl ***********************************
1418 dnl *** Checks for signals
1419 dnl ***********************************
1420 AC_CHECK_HEADERS(signal.h)
1421 AC_CHECK_FUNCS(sigaction)
1422 AC_CHECK_FUNCS(kill)
1423 AC_CHECK_FUNCS(signal)
1424
1425 # signal() is declared inline in Android headers
1426 # so we need to workaround it by overriding the check.
1427 if test x$platform_android = xyes; then
1428         AC_DEFINE(HAVE_SIGNAL,1)
1429 fi
1430
1431 if test x$host_win32 = xno; then
1432
1433         dnl hires monotonic clock support
1434         AC_SEARCH_LIBS(clock_gettime, rt)
1435         AC_CHECK_FUNCS(clock_nanosleep)
1436
1437         dnl dynamic loader support
1438         AC_CHECK_FUNC(dlopen, DL_LIB="",
1439                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1440         )
1441         if test x$dl_support = xno; then
1442                 AC_MSG_WARN([No dynamic loading support available])
1443         else
1444                 LIBS="$LIBS $DL_LIB"
1445                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1446                 dnl from glib's configure.ac
1447                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1448                         mono_cv_uscore,[
1449                         AC_TRY_RUN([#include <dlfcn.h>
1450                         int mono_underscore_test (void) { return 42; }
1451                         int main() {
1452                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1453                           handle = dlopen ((void*)0, 0);
1454                           if (handle) {
1455                             f1 = dlsym (handle, "mono_underscore_test");
1456                             f2 = dlsym (handle, "_mono_underscore_test");
1457                           } return (!f2 || f1);
1458                         }],
1459                                 [mono_cv_uscore=yes],
1460                                 [mono_cv_uscore=no],
1461                         [])
1462                 ])
1463                 if test "x$mono_cv_uscore" = "xyes"; then
1464                         MONO_DL_NEED_USCORE=1
1465                 else
1466                         MONO_DL_NEED_USCORE=0
1467                 fi
1468                 AC_SUBST(MONO_DL_NEED_USCORE)
1469                 AC_CHECK_FUNC(dlerror)
1470         fi
1471
1472         dnl ******************************************************************
1473         dnl *** Checks for the IKVM JNI interface library                  ***
1474         dnl ******************************************************************
1475         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])
1476
1477         ikvm_native_dir=
1478         if test x$with_ikvm_native = xyes; then
1479                 ikvm_native_dir=ikvm-native
1480                 jdk_headers_found="IKVM Native"
1481         fi
1482
1483         AC_SUBST(ikvm_native_dir)
1484
1485         AC_CHECK_HEADERS(execinfo.h)
1486
1487         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1488
1489         AC_CHECK_FUNCS(getgrgid_r)
1490         AC_CHECK_FUNCS(getgrnam_r)
1491         AC_CHECK_FUNCS(getresuid)
1492         AC_CHECK_FUNCS(setresuid)
1493         AC_CHECK_FUNCS(kqueue)
1494         AC_CHECK_FUNCS(backtrace_symbols)
1495         AC_CHECK_FUNCS(mkstemp)
1496         AC_CHECK_FUNCS(mmap)
1497         AC_CHECK_FUNCS(madvise)
1498         AC_CHECK_FUNCS(getrusage)
1499         AC_CHECK_FUNCS(getpriority)
1500         AC_CHECK_FUNCS(setpriority)
1501         AC_CHECK_FUNCS(dl_iterate_phdr)
1502         AC_CHECK_FUNCS(dladdr)
1503         AC_CHECK_FUNCS(sysconf)
1504         AC_CHECK_FUNCS(getrlimit)
1505         AC_CHECK_FUNCS(prctl)
1506
1507         AC_CHECK_FUNCS(sched_getaffinity)
1508         AC_CHECK_FUNCS(sched_setaffinity)
1509         AC_CHECK_FUNCS(sched_getcpu)
1510
1511         if test x$platform_android != xyes; then
1512                 AC_CHECK_FUNCS(getpwnam_r)
1513                 AC_CHECK_FUNCS(getpwuid_r)
1514         fi
1515
1516         dnl ****************************************************************
1517         dnl *** Check for sched_setaffinity from glibc versions before   ***
1518         dnl *** 2.3.4. The older versions of the function only take 2    ***
1519         dnl *** parameters, not 3.                                       ***
1520         dnl ***                                                          ***
1521         dnl *** Because the interface change was not made in a minor     ***
1522         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1523         dnl *** won't always indicate the interface sched_affinity has.  ***
1524         dnl ****************************************************************
1525         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1526         AC_TRY_COMPILE([#include <sched.h>], [
1527             int mask = 1; 
1528             sched_setaffinity(0, &mask);
1529                         return 0;
1530         ], [
1531                 # Yes, we have it...
1532                 AC_MSG_RESULT(yes)
1533                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1534         ], [
1535                 # We have the new, three-parameter version
1536                 AC_MSG_RESULT(no)
1537         ])
1538         AC_TRY_COMPILE([#include <sched.h>], [
1539              CPU_COUNT((void *) 0);
1540         ], [
1541                 AC_MSG_RESULT(yes)
1542                 AC_DEFINE(GLIBC_HAS_CPU_COUNT, 1, [GLIBC has CPU_COUNT macro in sched.h])
1543         ], [
1544                 # We have the new, three-parameter version
1545                 AC_MSG_RESULT(no)
1546         ])
1547
1548         dnl ******************************************************************
1549         dnl *** Check for large file support                               ***
1550         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1551         dnl ******************************************************************
1552         
1553         # Check that off_t can represent 2**63 - 1 correctly, working around
1554         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1555         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1556         large_offt=no
1557         AC_DEFUN([LARGE_FILES], [
1558                 large_CPPFLAGS=$CPPFLAGS
1559                 CPPFLAGS="$CPPFLAGS $1"
1560                 AC_TRY_COMPILE([
1561                         #include <sys/types.h>
1562                         #include <limits.h>
1563                 ], [
1564                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1565                         #define COMPILE_TIME_ASSERT(pred) \
1566                                 switch(0){case 0:case pred:;}
1567                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1568                 ], [
1569                         AC_MSG_RESULT(ok)
1570                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1571                         large_CPPFLAGS="$large_CPPFLAGS $1"
1572                         large_offt=yes
1573                 ], [
1574                         AC_MSG_RESULT(no)
1575                 ])
1576                 CPPFLAGS=$large_CPPFLAGS
1577         ])
1578
1579         AC_MSG_CHECKING(if off_t is 64 bits wide)
1580         LARGE_FILES("")
1581         if test $large_offt = no; then
1582                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1583                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1584         fi
1585         if test $large_offt = no; then
1586                 AC_MSG_WARN([No 64 bit file size support available])
1587         fi
1588         
1589         dnl *****************************
1590         dnl *** Checks for libsocket  ***
1591         dnl *****************************
1592         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1593
1594         case "$host" in
1595                 *-*-*freebsd*)
1596                         dnl *****************************
1597                         dnl *** Checks for libinotify ***
1598                         dnl *****************************
1599                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1600         esac
1601
1602         dnl *******************************
1603         dnl *** Checks for MSG_NOSIGNAL ***
1604         dnl *******************************
1605         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1606         AC_TRY_COMPILE([#include <sys/socket.h>], [
1607                 int f = MSG_NOSIGNAL;
1608         ], [
1609                 # Yes, we have it...
1610                 AC_MSG_RESULT(yes)
1611                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1612         ], [
1613                 # We'll have to use signals
1614                 AC_MSG_RESULT(no)
1615         ])
1616
1617         dnl *****************************
1618         dnl *** Checks for IPPROTO_IP ***
1619         dnl *****************************
1620         AC_MSG_CHECKING(for IPPROTO_IP)
1621         AC_TRY_COMPILE([#include <netinet/in.h>], [
1622                 int level = IPPROTO_IP;
1623         ], [
1624                 # Yes, we have it...
1625                 AC_MSG_RESULT(yes)
1626                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1627         ], [
1628                 # We'll have to use getprotobyname
1629                 AC_MSG_RESULT(no)
1630         ])
1631
1632         dnl *******************************
1633         dnl *** Checks for IPPROTO_IPV6 ***
1634         dnl *******************************
1635         AC_MSG_CHECKING(for IPPROTO_IPV6)
1636         AC_TRY_COMPILE([#include <netinet/in.h>], [
1637                 int level = IPPROTO_IPV6;
1638         ], [
1639                 # Yes, we have it...
1640                 AC_MSG_RESULT(yes)
1641                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1642         ], [
1643                 # We'll have to use getprotobyname
1644                 AC_MSG_RESULT(no)
1645         ])
1646
1647         dnl ******************************
1648         dnl *** Checks for IPPROTO_TCP ***
1649         dnl ******************************
1650         AC_MSG_CHECKING(for IPPROTO_TCP)
1651         AC_TRY_COMPILE([#include <netinet/in.h>], [
1652                 int level = IPPROTO_TCP;
1653         ], [
1654                 # Yes, we have it...
1655                 AC_MSG_RESULT(yes)
1656                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1657         ], [
1658                 # We'll have to use getprotobyname
1659                 AC_MSG_RESULT(no)
1660         ])
1661
1662         dnl *****************************
1663         dnl *** Checks for SOL_IP     ***
1664         dnl *****************************
1665         AC_MSG_CHECKING(for SOL_IP)
1666         AC_TRY_COMPILE([#include <netdb.h>], [
1667                 int level = SOL_IP;
1668         ], [
1669                 # Yes, we have it...
1670                 AC_MSG_RESULT(yes)
1671                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1672         ], [
1673                 # We'll have to use getprotobyname
1674                 AC_MSG_RESULT(no)
1675         ])
1676
1677         dnl *****************************
1678         dnl *** Checks for SOL_IPV6     ***
1679         dnl *****************************
1680         AC_MSG_CHECKING(for SOL_IPV6)
1681         AC_TRY_COMPILE([#include <netdb.h>], [
1682                 int level = SOL_IPV6;
1683         ], [
1684                 # Yes, we have it...
1685                 AC_MSG_RESULT(yes)
1686                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1687         ], [
1688                 # We'll have to use getprotobyname
1689                 AC_MSG_RESULT(no)
1690         ])
1691
1692         dnl *****************************
1693         dnl *** Checks for SOL_TCP    ***
1694         dnl *****************************
1695         AC_MSG_CHECKING(for SOL_TCP)
1696         AC_TRY_COMPILE([#include <netdb.h>], [
1697                 int level = SOL_TCP;
1698         ], [
1699                 # Yes, we have it...
1700                 AC_MSG_RESULT(yes)
1701                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1702         ], [
1703                 # We'll have to use getprotobyname
1704                 AC_MSG_RESULT(no)
1705         ])
1706
1707         dnl *****************************
1708         dnl *** Checks for IP_PKTINFO ***
1709         dnl *****************************
1710         AC_MSG_CHECKING(for IP_PKTINFO)
1711         AC_TRY_COMPILE([#include <linux/in.h>], [
1712                 int level = IP_PKTINFO;
1713         ], [
1714                 # Yes, we have it...
1715                 AC_MSG_RESULT(yes)
1716                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1717         ], [
1718                 AC_MSG_RESULT(no)
1719         ])
1720
1721         dnl *****************************
1722         dnl *** Checks for IPV6_PKTINFO ***
1723         dnl *****************************
1724         AC_MSG_CHECKING(for IPV6_PKTINFO)
1725         AC_TRY_COMPILE([#include <netdb.h>], [
1726                 int level = IPV6_PKTINFO;
1727         ], [
1728                 # Yes, we have it...
1729                 AC_MSG_RESULT(yes)
1730                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1731         ], [
1732                 AC_MSG_RESULT(no)
1733         ])
1734
1735         dnl **********************************
1736         dnl *** Checks for IP_DONTFRAG     ***
1737         dnl **********************************
1738         AC_MSG_CHECKING(for IP_DONTFRAG)
1739         AC_TRY_COMPILE([#include <netinet/in.h>], [
1740                 int level = IP_DONTFRAG;
1741         ], [
1742                 # Yes, we have it...
1743                 AC_MSG_RESULT(yes)
1744                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1745         ], [
1746                 AC_MSG_RESULT(no)
1747         ])
1748
1749         dnl **********************************
1750         dnl *** Checks for IP_DONTFRAGMENT ***
1751         dnl **********************************
1752         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1753         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1754                 int level = IP_DONTFRAGMENT;
1755         ], [
1756                 # Yes, we have it...
1757                 AC_MSG_RESULT(yes)
1758                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1759         ], [
1760                 AC_MSG_RESULT(no)
1761         ])
1762
1763         dnl **********************************
1764         dnl *** Checks for IP_MTU_DISCOVER ***
1765         dnl **********************************
1766         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1767         AC_TRY_COMPILE([#include <linux/in.h>], [
1768                 int level = IP_MTU_DISCOVER;
1769         ], [
1770                 # Yes, we have it...
1771                 AC_MSG_RESULT(yes)
1772                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1773         ], [
1774                 AC_MSG_RESULT(no)
1775         ])
1776
1777         dnl **********************************
1778         dnl *** Checks for  IP_PMTUDISC_DO ***
1779         dnl **********************************
1780         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1781         AC_TRY_COMPILE([#include <linux/in.h>], [
1782                 int level = IP_PMTUDISC_DO;
1783         ], [
1784                 # Yes, we have it...
1785                 AC_MSG_RESULT(yes)
1786                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1787         ], [
1788                 AC_MSG_RESULT(no)
1789         ])
1790
1791         dnl *********************************
1792         dnl *** Check for struct ip_mreqn ***
1793         dnl *********************************
1794         AC_MSG_CHECKING(for struct ip_mreqn)
1795         AC_TRY_COMPILE([#include <netinet/in.h>], [
1796                 struct ip_mreqn mreq;
1797                 mreq.imr_address.s_addr = 0;
1798         ], [
1799                 # Yes, we have it...
1800                 AC_MSG_RESULT(yes)
1801                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1802         ], [
1803                 # We'll just have to try and use struct ip_mreq
1804                 AC_MSG_RESULT(no)
1805                 AC_MSG_CHECKING(for struct ip_mreq)
1806                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1807                         struct ip_mreq mreq;
1808                         mreq.imr_interface.s_addr = 0;
1809                 ], [
1810                         # Yes, we have it...
1811                         AC_MSG_RESULT(yes)
1812                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1813                 ], [
1814                         # No multicast support
1815                         AC_MSG_RESULT(no)
1816                 ])
1817         ])
1818         
1819         dnl **********************************
1820         dnl *** Check for getaddrinfo ***
1821         dnl **********************************
1822         AC_MSG_CHECKING(for getaddrinfo)
1823                 AC_TRY_LINK([
1824                 #include <stdio.h>
1825                 #include <netdb.h>
1826         ], [
1827                 getaddrinfo(NULL,NULL,NULL,NULL);
1828         ], [
1829                 # Yes, we have it...
1830                 AC_MSG_RESULT(yes)
1831                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
1832         ], [
1833                 AC_MSG_RESULT(no)
1834         ])
1835
1836         dnl **********************************
1837         dnl *** Check for gethostbyname2_r ***
1838         dnl **********************************
1839         AC_MSG_CHECKING(for gethostbyname2_r)
1840                 AC_TRY_LINK([
1841                 #include <stdio.h>
1842                 #include <netdb.h>
1843         ], [
1844
1845                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1846         ], [
1847                 # Yes, we have it...
1848                 AC_MSG_RESULT(yes)
1849                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1850         ], [
1851                 AC_MSG_RESULT(no)
1852         ])
1853
1854         dnl **********************************
1855         dnl *** Check for gethostbyname2 ***
1856         dnl **********************************
1857         AC_MSG_CHECKING(for gethostbyname2)
1858                 AC_TRY_LINK([
1859                 #include <stdio.h>
1860                 #include <netdb.h>
1861         ], [
1862                 gethostbyname2(NULL,0);
1863         ], [
1864                 # Yes, we have it...
1865                 AC_MSG_RESULT(yes)
1866                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
1867         ], [
1868                 AC_MSG_RESULT(no)
1869         ])
1870
1871         dnl **********************************
1872         dnl *** Check for gethostbyname ***
1873         dnl **********************************
1874         AC_MSG_CHECKING(for gethostbyname)
1875                 AC_TRY_LINK([
1876                 #include <stdio.h>
1877                 #include <netdb.h>
1878         ], [
1879                 gethostbyname(NULL);
1880         ], [
1881                 # Yes, we have it...
1882                 AC_MSG_RESULT(yes)
1883                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
1884         ], [
1885                 AC_MSG_RESULT(no)
1886         ])
1887
1888         dnl **********************************
1889         dnl *** Check for getprotobyname ***
1890         dnl **********************************
1891         AC_MSG_CHECKING(for getprotobyname)
1892                 AC_TRY_LINK([
1893                 #include <stdio.h>
1894                 #include <netdb.h>
1895         ], [
1896                 getprotobyname(NULL);
1897         ], [
1898                 # Yes, we have it...
1899                 AC_MSG_RESULT(yes)
1900                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
1901         ], [
1902                 AC_MSG_RESULT(no)
1903         ])
1904
1905         dnl **********************************
1906         dnl *** Check for getnameinfo ***
1907         dnl **********************************
1908         AC_MSG_CHECKING(for getnameinfo)
1909                 AC_TRY_LINK([
1910                 #include <stdio.h>
1911                 #include <netdb.h>
1912         ], [
1913                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
1914         ], [
1915                 # Yes, we have it...
1916                 AC_MSG_RESULT(yes)
1917                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
1918         ], [
1919                 AC_MSG_RESULT(no)
1920         ])
1921
1922
1923         dnl **********************************
1924         dnl *** Check for inet_ntop ***
1925         dnl **********************************
1926         AC_MSG_CHECKING(for inet_ntop)
1927                 AC_TRY_LINK([
1928                 #include <stdio.h>
1929                 #include <arpa/inet.h>
1930         ], [
1931                 inet_ntop (0, NULL, NULL, 0);
1932         ], [
1933                 # Yes, we have it...
1934                 AC_MSG_RESULT(yes)
1935                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
1936         ], [
1937                 AC_MSG_RESULT(no)
1938         ])
1939
1940         dnl *****************************
1941         dnl *** Checks for libnsl     ***
1942         dnl *****************************
1943         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1944
1945         AC_CHECK_FUNCS(inet_pton inet_aton)
1946
1947         dnl *****************************
1948         dnl *** Checks for libxnet    ***
1949         dnl *****************************
1950         case "${host}" in
1951                 *solaris* )
1952                         AC_MSG_CHECKING(for Solaris XPG4 support)
1953                         if test -f /usr/lib/libxnet.so; then
1954                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1955                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1956                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1957                                 LIBS="$LIBS -lxnet"
1958                                 AC_MSG_RESULT(yes)
1959                         else
1960                                 AC_MSG_RESULT(no)
1961                         fi
1962
1963                         if test "$GCC" = "yes"; then
1964                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1965                         fi
1966                 ;;
1967         esac
1968
1969         dnl *****************************
1970         dnl *** Checks for libpthread ***
1971         dnl *****************************
1972 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1973 # and libpthread does not exist
1974 #
1975         case "${host}" in
1976                 *-*-*haiku*)
1977                         dnl Haiku has pthread in libroot (libc equiv)
1978                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS")
1979                 ;;
1980                 *-*-*freebsd*)
1981                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1982                 ;;
1983                 *-*-*openbsd*)
1984                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1985                 ;;
1986                 *)
1987                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1988                 ;;
1989         esac
1990         AC_CHECK_HEADERS(pthread.h)
1991         AC_CHECK_HEADERS(pthread_np.h)
1992         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1993         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np pthread_cond_timedwait_relative_np)
1994         AC_CHECK_FUNCS(pthread_kill)
1995         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1996         AC_TRY_COMPILE([ #include <pthread.h>], [
1997                 pthread_mutexattr_t attr;
1998                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1999         ], [
2000                 AC_MSG_RESULT(ok)
2001         ], [
2002                 AC_MSG_RESULT(no)
2003                 AC_ERROR(Posix system lacks support for recursive mutexes)
2004         ])
2005         AC_CHECK_FUNCS(pthread_attr_setstacksize)
2006         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
2007         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
2008
2009         dnl **********************************
2010         dnl *** Check for mincore ***
2011         dnl **********************************
2012         AC_MSG_CHECKING(for mincore)
2013                 AC_TRY_LINK([
2014                 #include <stdio.h>
2015                 #include <sys/types.h>
2016                 #include <sys/mman.h>
2017         ], [
2018                 mincore(NULL, 0, NULL);
2019         ], [
2020                 # Yes, we have it...
2021                 AC_MSG_RESULT(yes)
2022                 AC_DEFINE(HAVE_MINCORE, 1, [Have mincore])
2023         ], [
2024                 AC_MSG_RESULT(no)
2025         ])
2026
2027         dnl ***********************************
2028         dnl *** Checks for working __thread ***
2029         dnl ***********************************
2030         AC_MSG_CHECKING(for working __thread)
2031         if test "x$with_tls" != "x__thread"; then
2032                 AC_MSG_RESULT(disabled)
2033         elif test "x$cross_compiling" = "xyes"; then
2034                 AC_MSG_RESULT(cross compiling, assuming yes)
2035         else
2036                 AC_TRY_RUN([
2037                         #if defined(__APPLE__) && defined(__clang__)
2038                         #error "__thread does not currently work with clang on Mac OS X"
2039                         #endif
2040                         
2041                         #include <pthread.h>
2042                         __thread int i;
2043                         static int res1, res2;
2044
2045                         void thread_main (void *arg)
2046                         {
2047                                 i = arg;
2048                                 sleep (1);
2049                                 if (arg == 1)
2050                                         res1 = (i == arg);
2051                                 else
2052                                         res2 = (i == arg);
2053                         }
2054
2055                         int main () {
2056                                 pthread_t t1, t2;
2057
2058                                 i = 5;
2059
2060                                 pthread_create (&t1, NULL, thread_main, 1);
2061                                 pthread_create (&t2, NULL, thread_main, 2);
2062
2063                                 pthread_join (t1, NULL);
2064                                 pthread_join (t2, NULL);
2065
2066                                 return !(res1 + res2 == 2);
2067                         }
2068                 ], [
2069                                 AC_MSG_RESULT(yes)
2070                 ], [
2071                                 AC_MSG_RESULT(no)
2072                                 with_tls=pthread
2073                 ])
2074         fi
2075
2076         dnl **************************************
2077         dnl *** Checks for working sigaltstack ***
2078         dnl **************************************
2079         AC_MSG_CHECKING(for working sigaltstack)
2080         if test "x$with_sigaltstack" != "xyes"; then
2081                 AC_MSG_RESULT(disabled)
2082         elif test "x$cross_compiling" = "xyes"; then
2083                 AC_MSG_RESULT(cross compiling, assuming yes)
2084         else
2085                 AC_TRY_RUN([
2086                         #include <stdio.h>
2087                         #include <stdlib.h>
2088                         #include <unistd.h>
2089                         #include <signal.h>
2090                         #include <pthread.h>
2091                         #include <sys/wait.h>
2092                         #if defined(__FreeBSD__) || defined(__NetBSD__)
2093                         #define SA_STACK SA_ONSTACK
2094                         #endif
2095                         static void
2096                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
2097                         {
2098                                 exit (0);
2099                         }
2100
2101                         volatile char*__ptr = NULL;
2102                         static void *
2103                         loop (void *ignored)
2104                         {
2105                                 *__ptr = 0;
2106                                 return NULL;
2107                         }
2108
2109                         static void
2110                         child ()
2111                         {
2112                                 struct sigaction sa;
2113                         #ifdef __APPLE__
2114                                 stack_t sas;
2115                         #else
2116                                 struct sigaltstack sas;
2117                         #endif
2118                                 pthread_t id;
2119                                 pthread_attr_t attr;
2120
2121                                 sa.sa_sigaction = sigsegv_signal_handler;
2122                                 sigemptyset (&sa.sa_mask);
2123                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
2124                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
2125                                         perror ("sigaction");
2126                                         return;
2127                                 }
2128
2129                                 /* x86 darwin deliver segfaults using SIGBUS */
2130                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
2131                                         perror ("sigaction");
2132                                         return;
2133                                 }
2134                                 sas.ss_sp = malloc (SIGSTKSZ);
2135                                 sas.ss_size = SIGSTKSZ;
2136                                 sas.ss_flags = 0;
2137                                 if (sigaltstack (&sas, NULL) == -1) {
2138                                         perror ("sigaltstack");
2139                                         return;
2140                                 }
2141
2142                                 pthread_attr_init (&attr);
2143                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
2144                                         printf ("pthread_create\n");
2145                                         return;
2146                                 }
2147
2148                                 sleep (100);
2149                         }
2150
2151                         int
2152                         main ()
2153                         {
2154                                 pid_t son;
2155                                 int status;
2156                                 int i;
2157
2158                                 son = fork ();
2159                                 if (son == -1) {
2160                                         return 1;
2161                                 }
2162
2163                                 if (son == 0) {
2164                                         child ();
2165                                         return 0;
2166                                 }
2167
2168                                 for (i = 0; i < 300; ++i) {
2169                                         waitpid (son, &status, WNOHANG);
2170                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
2171                                                 return 0;
2172                                         usleep (10000);
2173                                 }
2174
2175                                 kill (son, SIGKILL);
2176                                 return 1;
2177                         }
2178
2179                 ], [
2180                                 AC_MSG_RESULT(yes)
2181                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
2182                 ], [
2183                                 with_sigaltstack=no
2184                                 AC_MSG_RESULT(no)
2185                 ])
2186         fi
2187
2188         dnl ********************************
2189         dnl *** Checks for semaphore lib ***
2190         dnl ********************************
2191         # 'Real Time' functions on Solaris
2192         # posix4 on Solaris 2.6
2193         # pthread (first!) on Linux
2194         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
2195
2196         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
2197         AC_CHECK_FUNCS(shm_open)
2198
2199         dnl ********************************
2200         dnl *** Checks for timezone stuff **
2201         dnl ********************************
2202         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
2203                 AC_TRY_COMPILE([
2204                         #include <time.h>
2205                         ], [
2206                         struct tm tm;
2207                         tm.tm_gmtoff = 1;
2208                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
2209         if test $ac_cv_struct_tm_gmtoff = yes; then
2210                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
2211         else
2212                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
2213                         AC_TRY_COMPILE([
2214                                 #include <time.h>
2215                         ], [
2216                                 timezone = 1;
2217                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
2218                 if test $ac_cv_var_timezone = yes; then
2219                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
2220                 else
2221                         AC_ERROR(unable to find a way to determine timezone)
2222                 fi
2223         fi
2224
2225         dnl *********************************
2226         dnl *** Checks for math functions ***
2227         dnl *********************************
2228         AC_SEARCH_LIBS(sqrtf, m)
2229         if test "x$has_broken_apple_cpp" != "xyes"; then
2230                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
2231                         AC_TRY_LINK([#include <math.h>], 
2232                         [ finite(0.0); ], 
2233                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
2234                         AC_MSG_RESULT(no)))
2235         fi
2236         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
2237                 AC_TRY_LINK([#include <math.h>], 
2238                 [ isfinite(0.0); ], 
2239                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
2240                 AC_MSG_RESULT(no)))
2241
2242         dnl ****************************************************************
2243         dnl *** Checks for working poll() (macosx defines it but doesn't ***
2244         dnl *** have it in the library (duh))                            ***
2245         dnl ****************************************************************
2246         AC_CHECK_FUNCS(poll)
2247
2248         dnl *************************
2249         dnl *** Check for signbit ***
2250         dnl *************************
2251         AC_MSG_CHECKING(for signbit)
2252         AC_TRY_LINK([#include <math.h>], [
2253                 int s = signbit(1.0);
2254         ], [
2255                 AC_MSG_RESULT(yes)
2256                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
2257         ], [
2258                 AC_MSG_RESULT(no)
2259         ]) 
2260
2261         dnl **********************************
2262         dnl *** epoll                      ***
2263         dnl **********************************
2264         AC_CHECK_HEADERS(sys/epoll.h)
2265         haveepoll=no
2266         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
2267         if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
2268                 AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
2269         fi
2270
2271         havekqueue=no
2272
2273         AC_CHECK_HEADERS(sys/event.h)
2274         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
2275
2276         dnl **************************************
2277         dnl * Darwin has a race that prevents us from using reliably:
2278         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
2279         dnl * Since kqueue is mostly used for scaling large web servers, 
2280         dnl * and very few folks run Mono on large web servers on OSX, falling
2281         dnl * back 
2282         dnl **************************************
2283         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
2284                 if test "x$host_darwin" = "xno"; then
2285                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
2286                 fi
2287         fi
2288
2289         dnl ******************************
2290         dnl *** Checks for SIOCGIFCONF ***
2291         dnl ******************************
2292         AC_CHECK_HEADERS(sys/ioctl.h)
2293         AC_CHECK_HEADERS(net/if.h, [], [],
2294            [
2295            #ifdef HAVE_SYS_TYPES_H
2296            # include <sys/types.h>
2297            #endif
2298            #ifdef HAVE_SYS_SOCKET_H
2299            # include <sys/socket.h>
2300            #endif
2301            ])
2302         AC_MSG_CHECKING(for ifreq)
2303         AC_TRY_COMPILE([
2304                 #include <stdio.h>
2305                 #include <sys/ioctl.h>
2306                 #include <net/if.h>
2307                 ], [
2308                 struct ifconf ifc;
2309                 struct ifreq *ifr;
2310                 void *x;
2311                 ifc.ifc_len = 0;
2312                 ifc.ifc_buf = NULL;
2313                 x = (void *) &ifr->ifr_addr;
2314                 ],[
2315                         AC_MSG_RESULT(yes)
2316                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
2317                 ], [
2318                         AC_MSG_RESULT(no)
2319                 ])
2320         dnl **********************************
2321         dnl ***     Checks for sin_len     ***
2322         dnl **********************************
2323         AC_MSG_CHECKING(for sockaddr_in.sin_len)
2324         AC_TRY_COMPILE([
2325                 #include <netinet/in.h>
2326                 ], [
2327                 struct sockaddr_in saddr;
2328                 saddr.sin_len = sizeof (saddr);
2329                 ],[
2330                         AC_MSG_RESULT(yes)
2331                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
2332                 ], [
2333                         AC_MSG_RESULT(no)
2334                 ])      
2335         dnl **********************************
2336         dnl ***    Checks for sin6_len     ***
2337         dnl **********************************
2338         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
2339         AC_TRY_COMPILE([
2340                 #include <netinet/in.h>
2341                 ], [
2342                 struct sockaddr_in6 saddr6;
2343                 saddr6.sin6_len = sizeof (saddr6);
2344                 ],[
2345                         AC_MSG_RESULT(yes)
2346                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
2347                 ], [
2348                         AC_MSG_RESULT(no)
2349                 ])
2350         dnl **********************************
2351         dnl *** Check for getifaddrs       ***
2352         dnl **********************************
2353         AC_MSG_CHECKING(for getifaddrs)
2354                 AC_TRY_LINK([
2355                 #include <stdio.h>
2356                 #include <sys/types.h>
2357                 #include <sys/socket.h>
2358                 #include <ifaddrs.h>
2359         ], [
2360                 getifaddrs(NULL);
2361         ], [
2362                 # Yes, we have it...
2363                 AC_MSG_RESULT(yes)
2364                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
2365         ], [
2366                 AC_MSG_RESULT(no)
2367         ])
2368         dnl **********************************
2369         dnl *** Check for if_nametoindex   ***
2370         dnl **********************************
2371         AC_MSG_CHECKING(for if_nametoindex)
2372                 AC_TRY_LINK([
2373                 #include <stdio.h>
2374                 #include <sys/types.h>
2375                 #include <sys/socket.h>
2376                 #include <net/if.h>
2377         ], [
2378                 if_nametoindex(NULL);
2379         ], [
2380                 # Yes, we have it...
2381                 AC_MSG_RESULT(yes)
2382                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
2383         ], [
2384                 AC_MSG_RESULT(no)
2385         ])
2386                         
2387         dnl **********************************
2388         dnl *** Checks for proclib         ***
2389         dnl **********************************
2390         AC_CHECK_HEADER(sys/errno.h, [AC_DEFINE(HAVE_SYS_ERRNO_H, 1, Define to 1 if you have the <sys/errno.h> header file.)])
2391         dnl **********************************
2392         dnl *** Checks for MonoPosixHelper ***
2393         dnl **********************************
2394         AC_CHECK_HEADERS(checklist.h)
2395         AC_CHECK_HEADERS(pathconf.h)
2396         AC_CHECK_HEADERS(fstab.h)
2397         AC_CHECK_HEADERS(attr/xattr.h)
2398         AC_CHECK_HEADERS(sys/extattr.h)
2399         AC_CHECK_HEADERS(sys/sendfile.h)
2400         AC_CHECK_HEADERS(sys/statvfs.h)
2401         AC_CHECK_HEADERS(sys/statfs.h)
2402         AC_CHECK_HEADERS(sys/vfstab.h)
2403         AC_CHECK_HEADERS(sys/xattr.h)
2404         AC_CHECK_HEADERS(sys/mman.h)
2405         AC_CHECK_HEADERS(sys/param.h)
2406         AC_CHECK_HEADERS(sys/mount.h, [], [],
2407                 [
2408                 #ifdef HAVE_SYS_PARAM_H
2409                 # include <sys/param.h>
2410                 #endif
2411                 ])
2412         AC_CHECK_HEADERS(sys/mount.h)
2413         AC_CHECK_FUNCS(confstr)
2414         AC_CHECK_FUNCS(seekdir telldir)
2415         AC_CHECK_FUNCS(getdomainname)
2416         AC_CHECK_FUNCS(setdomainname)
2417         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
2418         AC_CHECK_FUNCS(setgroups)
2419         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
2420         AC_CHECK_FUNCS(getfsstat)
2421         AC_CHECK_FUNCS(lutimes futimes)
2422         AC_CHECK_FUNCS(mremap)
2423         AC_CHECK_FUNCS(remap_file_pages)
2424         AC_CHECK_FUNCS(posix_fadvise)
2425         AC_CHECK_FUNCS(posix_fallocate)
2426         AC_CHECK_FUNCS(posix_madvise)
2427         AC_CHECK_FUNCS(vsnprintf)
2428         AC_CHECK_FUNCS(sendfile)
2429         AC_CHECK_FUNCS(gethostid sethostid)
2430         AC_CHECK_FUNCS(sethostname)
2431         AC_CHECK_FUNCS(statfs)
2432         AC_CHECK_FUNCS(fstatfs)
2433         AC_CHECK_FUNCS(statvfs)
2434         AC_CHECK_FUNCS(fstatvfs)
2435         AC_CHECK_FUNCS(stime)
2436         AC_CHECK_FUNCS(strerror_r)
2437         AC_CHECK_FUNCS(ttyname_r)
2438         AC_CHECK_FUNCS(psignal)
2439         AC_CHECK_FUNCS(getlogin_r)
2440         AC_CHECK_FUNCS(lockf)
2441         AC_CHECK_FUNCS(swab)
2442         AC_CHECK_FUNCS(setusershell endusershell)
2443         AC_CHECK_FUNCS(futimens utimensat)
2444         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2445         AC_CHECK_FUNCS(readv writev preadv pwritev)
2446         AC_CHECK_FUNCS(setpgid)
2447         AC_CHECK_FUNCS(system)
2448         AC_CHECK_FUNCS(fork execv execve)
2449         AC_CHECK_FUNCS(accept4)
2450         AC_CHECK_FUNCS(localtime_r)
2451         AC_CHECK_FUNCS(mkdtemp)
2452         AC_CHECK_SIZEOF(size_t)
2453         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2454                 [#include <sys/types.h>
2455                  #include <sys/stat.h>
2456                  #include <unistd.h>])
2457         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2458                 [#include <sys/types.h>
2459                  #include <sys/stat.h>
2460                  #include <unistd.h>])
2461         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2462                 [#include <sys/time.h>])
2463         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
2464                 [#include <sys/socket.h>])
2465         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2466                 [#include <unistd.h>
2467                  #include <fcntl.h>])
2468         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2469                 [#include <sys/uio.h>])
2470         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
2471                 [#include <sys/socket.h>])
2472         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2473                 [#include <sys/poll.h>])
2474         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
2475                 [#include <sys/socket.h>])
2476         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
2477                 [#include <sys/socket.h>])
2478         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
2479                 [#include <netinet/in.h>])
2480         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
2481                 [#include <netinet/in.h>])
2482         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
2483                 [#include <sys/un.h>])
2484         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2485                 [#include <sys/types.h>
2486                  #include <sys/stat.h>
2487                  #include <unistd.h>])
2488         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2489                 [#include <time.h>])
2490         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2491                 [#include <sys/time.h>
2492                  #include <sys/types.h>
2493                  #include <utime.h>])
2494         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2495                 [#include <sys/time.h>])
2496         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2497                 [#include <sys/types.h>
2498                  #include <utime.h>])
2499         AC_CHECK_MEMBERS(
2500                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2501                 [#include <sys/types.h>
2502                  #include <dirent.h>])
2503         AC_CHECK_MEMBERS(
2504                 [struct passwd.pw_gecos],,, 
2505                 [#include <sys/types.h>
2506                  #include <pwd.h>])
2507         AC_CHECK_MEMBERS(
2508                 [struct statfs.f_flags],,, 
2509                 [#include <sys/types.h>
2510                  #include <sys/vfs.h>])
2511         AC_CHECK_MEMBERS(
2512                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2513                 [#include <sys/types.h>
2514                  #include <sys/stat.h>
2515                  #include <unistd.h>])
2516
2517         dnl Favour xattr through glibc, but use libattr if we have to
2518         AC_CHECK_FUNC(lsetxattr, ,
2519                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2520         )
2521         AC_SUBST(XATTR_LIB)
2522
2523         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2524         AC_CHECK_MEMBERS(
2525                 [struct kinfo_proc.kp_proc],,, 
2526                 [#include <sys/types.h>
2527                  #include <sys/param.h>
2528                  #include <sys/sysctl.h>
2529                  #include <sys/proc.h>
2530                  ])
2531
2532         dnl *********************************
2533         dnl *** Checks for Windows compilation ***
2534         dnl *********************************
2535         AC_CHECK_HEADERS(sys/time.h)
2536         AC_CHECK_HEADERS(sys/param.h)
2537         AC_CHECK_HEADERS(dirent.h)
2538
2539         dnl ******************************************
2540         dnl *** Checks for OSX and iOS compilation ***
2541         dnl ******************************************
2542         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2543
2544         dnl *********************************
2545         dnl *** Check for Console 2.0 I/O ***
2546         dnl *********************************
2547         AC_CHECK_HEADERS([curses.h])
2548         AC_CHECK_HEADERS([term.h], [], [],
2549         [#if HAVE_CURSES_H
2550          #include <curses.h>
2551          #endif
2552         ])
2553         AC_CHECK_HEADERS([termios.h])
2554 else
2555         dnl *********************************
2556         dnl *** Checks for Windows compilation ***
2557         dnl *********************************
2558         AC_CHECK_HEADERS(winternl.h)
2559
2560         jdk_headers_found=no
2561         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2562         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2563         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2564         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2565         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2566         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2567         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2568
2569         dnl *********************************
2570         dnl *** Check for struct ip_mreqn ***
2571         dnl *********************************
2572         AC_MSG_CHECKING(for struct ip_mreqn)
2573         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2574                 struct ip_mreqn mreq;
2575                 mreq.imr_address.s_addr = 0;
2576         ], [
2577                 # Yes, we have it...
2578                 AC_MSG_RESULT(yes)
2579                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2580         ], [
2581                 # We'll just have to try and use struct ip_mreq
2582                 AC_MSG_RESULT(no)
2583                 AC_MSG_CHECKING(for struct ip_mreq)
2584                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2585                         struct ip_mreq mreq;
2586                         mreq.imr_interface.s_addr = 0;
2587                 ], [
2588                         # Yes, we have it...
2589                         AC_MSG_RESULT(yes)
2590                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2591                 ], [
2592                         # No multicast support
2593                         AC_MSG_RESULT(no)
2594                 ])
2595         ])
2596
2597         dnl **********************************
2598         dnl *** Check for getaddrinfo ***
2599         dnl **********************************
2600         AC_MSG_CHECKING(for getaddrinfo)
2601                 AC_TRY_LINK([
2602                 #include <stdio.h>
2603                 #include <winsock2.h>
2604                 #include <ws2tcpip.h>
2605         ], [
2606                 getaddrinfo(NULL,NULL,NULL,NULL);
2607         ], [
2608                 # Yes, we have it...
2609                 AC_MSG_RESULT(yes)
2610                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2611         ], [
2612                 AC_MSG_RESULT(no)
2613         ])
2614
2615         dnl **********************************
2616         dnl *** Check for gethostbyname ***
2617         dnl **********************************
2618         AC_MSG_CHECKING(for gethostbyname)
2619                 AC_TRY_LINK([
2620                 #include <stdio.h>
2621                 #include <winsock2.h>
2622                 #include <ws2tcpip.h>
2623         ], [
2624                 gethostbyname(NULL);
2625         ], [
2626                 # Yes, we have it...
2627                 AC_MSG_RESULT(yes)
2628                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2629         ], [
2630                 AC_MSG_RESULT(no)
2631         ])
2632
2633         dnl **********************************
2634         dnl *** Check for getprotobyname ***
2635         dnl **********************************
2636         AC_MSG_CHECKING(for getprotobyname)
2637                 AC_TRY_LINK([
2638                 #include <stdio.h>
2639                 #include <winsock2.h>
2640                 #include <ws2tcpip.h>
2641         ], [
2642                 getprotobyname(NULL);
2643         ], [
2644                 # Yes, we have it...
2645                 AC_MSG_RESULT(yes)
2646                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2647         ], [
2648                 AC_MSG_RESULT(no)
2649         ])
2650
2651         dnl **********************************
2652         dnl *** Check for getnameinfo ***
2653         dnl **********************************
2654         AC_MSG_CHECKING(for getnameinfo)
2655                 AC_TRY_LINK([
2656                 #include <stdio.h>
2657                 #include <winsock2.h>
2658                 #include <ws2tcpip.h>
2659         ], [
2660                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2661         ], [
2662                 # Yes, we have it...
2663                 AC_MSG_RESULT(yes)
2664                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2665         ], [
2666                 AC_MSG_RESULT(no)
2667         ])
2668
2669         dnl **********************************
2670         dnl *** Check for inet_ntop ***
2671         dnl **********************************
2672         AC_MSG_CHECKING(for inet_ntop)
2673                 AC_TRY_LINK([
2674                 #include <stdio.h>
2675                 #include <winsock2.h>
2676                 #include <ws2tcpip.h>
2677         ], [
2678                 inet_ntop (0, NULL, NULL, 0);
2679         ], [
2680                 # Yes, we have it...
2681                 AC_MSG_RESULT(yes)
2682                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2683         ], [
2684                 AC_MSG_RESULT(no)
2685         ])
2686
2687         dnl **********************************
2688         dnl *** Check for inet_pton ***
2689         dnl **********************************
2690         AC_MSG_CHECKING(for inet_pton)
2691                 AC_TRY_LINK([
2692                 #include <stdio.h>
2693                 #include <winsock2.h>
2694                 #include <ws2tcpip.h>
2695         ], [
2696                 #ifndef inet_pton
2697                 (void) inet_pton;
2698                 #endif
2699                 inet_pton (0, NULL, NULL);
2700         ], [
2701                 # Yes, we have it...
2702                 AC_MSG_RESULT(yes)
2703                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
2704         ], [
2705                 AC_MSG_RESULT(no)
2706         ])
2707
2708         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2709         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2710         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2711         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2712         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2713         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2714         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2715 fi
2716
2717 dnl socklen_t check
2718 AC_MSG_CHECKING(for socklen_t)
2719 AC_TRY_COMPILE([
2720 #include <sys/types.h>
2721 #include <sys/socket.h>
2722 ],[
2723   socklen_t foo;
2724 ],[
2725 ac_cv_c_socklen_t=yes
2726         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2727         AC_MSG_RESULT(yes)
2728 ],[
2729         AC_MSG_RESULT(no)
2730 ])
2731
2732 AC_MSG_CHECKING(for array element initializer support)
2733 AC_TRY_COMPILE([#include <sys/socket.h>], [
2734         const int array[] = {[1] = 2,};
2735 ], [
2736         # Yes, we have it...
2737         AC_MSG_RESULT(yes)
2738         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2739 ], [
2740         # We'll have to use signals
2741         AC_MSG_RESULT(no)
2742 ])
2743
2744 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2745         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2746         AC_TRY_LINK([#include <math.h>], 
2747         [ static void *p = &trunc; ],
2748         [
2749                 AC_DEFINE(HAVE_TRUNC) 
2750                 AC_MSG_RESULT(yes)
2751                 ac_cv_trunc=yes
2752         ],
2753         AC_MSG_RESULT(no)))
2754
2755 if test "x$ac_cv_truncl" != "xyes"; then
2756    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2757 fi
2758
2759 AC_CHECK_FUNCS(execvp)
2760
2761 dnl ****************************
2762 dnl *** Look for /dev/random ***
2763 dnl ****************************
2764
2765 AC_MSG_CHECKING([if usage of random device is requested])
2766 AC_ARG_ENABLE(dev-random,
2767 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2768 try_dev_random=$enableval, try_dev_random=yes)
2769
2770 AC_MSG_RESULT($try_dev_random)
2771
2772 case "{$build}" in
2773     *-openbsd*)
2774     NAME_DEV_RANDOM="/dev/srandom"
2775     ;;
2776
2777 dnl Win32 does not have /dev/random, they have their own method...
2778
2779     *-mingw*|*-*-cygwin*)
2780     ac_cv_have_dev_random=no
2781     ;;
2782
2783 dnl Everywhere else, it's /dev/random
2784
2785     *)
2786     NAME_DEV_RANDOM="/dev/random"
2787     ;;
2788 esac
2789
2790 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2791
2792 dnl Now check if the device actually exists
2793
2794 if test "x$try_dev_random" = "xyes"; then
2795     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2796     [if test -r "$NAME_DEV_RANDOM" ; then
2797         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2798     if test "x$ac_cv_have_dev_random" = "xyes"; then
2799         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2800     fi
2801 else
2802     AC_MSG_CHECKING(for random device)
2803     ac_cv_have_dev_random=no
2804     AC_MSG_RESULT(has been disabled)
2805 fi
2806
2807 if test "x$host_win32" = "xyes"; then
2808     AC_DEFINE(HAVE_CRYPT_RNG)
2809 fi
2810
2811 if test "x$ac_cv_have_dev_random" = "xno" \
2812     && test "x$host_win32" = "xno"; then
2813     AC_MSG_WARN([[
2814 ***
2815 *** A system-provided entropy source was not found on this system.
2816 *** Because of this, the System.Security.Cryptography random number generator
2817 *** will throw a NotImplemented exception.
2818 ***
2819 *** If you are seeing this message, and you know your system DOES have an
2820 *** entropy collection in place, please contact <crichton@gimp.org> and
2821 *** provide information about the system and how to access the random device.
2822 ***
2823 *** Otherwise you can install either egd or prngd and set the environment
2824 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2825 ***]])
2826 fi
2827
2828 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2829
2830 AC_MSG_CHECKING([if big-arrays are to be enabled])
2831 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2832 if test "x$enable_big_arrays" = "xyes" ; then
2833     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2834         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2835     else
2836         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2837     fi
2838 fi
2839 AC_MSG_RESULT($enable_big_arrays)
2840
2841 dnl **************
2842 dnl *** DTRACE ***
2843 dnl **************
2844
2845 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2846
2847 if test "x$enable_dtrace" = "xyes"; then
2848    if test "x$has_dtrace" = "xno"; then
2849           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2850    fi
2851    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2852    if test "x$DTRACE" = "xno"; then
2853           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2854           enable_dtrace=no
2855    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2856           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2857           enable_dtrace=no
2858    fi
2859 fi
2860
2861 dtrace_g=no
2862 if test "x$enable_dtrace" = "xyes"; then
2863         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2864         DTRACEFLAGS=
2865         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2866                 case "$host" in
2867                         powerpc-*-darwin*)
2868                         DTRACEFLAGS="-arch ppc64"
2869                         ;;
2870                         i*86-*-darwin*)
2871                         DTRACEFLAGS="-arch x86_64"
2872                         ;;
2873                         *)
2874                         DTRACEFLAGS=-64
2875                         ;;
2876                 esac
2877         else
2878                 case "$host" in
2879                         powerpc-*-darwin*)
2880                         DTRACEFLAGS="-arch ppc"
2881                         ;;
2882                         i*86-*-darwin*)
2883                         DTRACEFLAGS="-arch i386"
2884                         ;;
2885                         *)
2886                         DTRACEFLAGS=-32
2887                         ;;
2888                 esac
2889         fi
2890         AC_SUBST(DTRACEFLAGS)
2891         case "$host" in
2892                 *-*-solaris*)
2893                 dtrace_g=yes
2894                 ;;
2895         esac
2896         AC_CHECK_HEADERS([sys/sdt.h])
2897 fi
2898 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2899 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2900
2901 dnl **************************
2902 dnl *** AOT cross offsets  ***
2903 dnl **************************
2904
2905 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
2906     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
2907
2908 dnl **************
2909 dnl ***  LLVM  ***
2910 dnl **************
2911
2912 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=default)
2913 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2914 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2915 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
2916
2917 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2918
2919 if test "x$enable_llvm" = "xdefault"; then
2920    enable_llvm=$enable_llvm_default
2921 fi
2922
2923 if test "x$enable_llvm" = "xyes"; then
2924    if test "x$with_llvm" != "x"; then
2925           LLVM_CONFIG=$with_llvm/bin/llvm-config
2926           if test x$host_win32 = xyes; then
2927                 LLVM_CONFIG=$LLVM_CONFIG.exe
2928           fi
2929           if test ! -x $LLVM_CONFIG; then
2930                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2931       fi
2932    else
2933       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2934       if test "x$LLVM_CONFIG" = "xno"; then
2935              AC_MSG_ERROR([llvm-config not found.])
2936       fi
2937    fi
2938
2939    llvm_codegen="x86codegen"
2940    case "$target" in
2941    arm*)
2942                 llvm_codegen="armcodegen"
2943                 ;;
2944    esac
2945
2946    if test "x$host_win32" = "xno"; then
2947
2948    # Should be something like '2.6' or '2.7svn'
2949    llvm_version=`$LLVM_CONFIG --version`
2950    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2951    AC_MSG_CHECKING(LLVM version)
2952    AC_MSG_RESULT($llvm_version $llvm_api_version)
2953    if echo $llvm_version | grep -q 'mono'; then
2954           if test "x$enable_llvm_version_check" = "xyes"; then
2955                  if test "$llvm_version" != "$expected_llvm_version"; then
2956                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2957                  fi
2958           fi
2959    else
2960           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.])
2961    fi
2962
2963    # The output of --cflags seems to include optimizations flags too
2964    if test $llvm_api_version -gt 100; then
2965           # The --cflags argument includes all kinds of warnings -pendantic etc.
2966           LLVM_CFLAGS="-I$with_llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2967           LLVM_CXXFLAGS="-I$with_llvm/include -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2968    else
2969           LLVM_CFLAGS=`$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'`
2970       LLVM_CXXFLAGS=`$LLVM_CONFIG --cxxflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2971    fi
2972    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2973    # from LLVM classes.
2974    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -fno-rtti -fexceptions"
2975    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2976    # This might include empty lines
2977    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2978    llvm_jit_supported=yes
2979    llvm_jit_libs="jit mcjit $llvm_codegen"
2980    if test "x$host" != "x$target"; then
2981       # No need for jit libs
2982           llvm_jit_supported=no
2983       llvm_jit_libs=""
2984    elif test $llvm_api_version -gt 100; then
2985       llvm_jit_libs="orcjit $llvm_codegen"
2986    fi
2987    LLVM_LIBS=`$LLVM_CONFIG --libs analysis core bitwriter $llvm_jit_libs`
2988    if test "x$LLVM_LIBS" = "x"; then
2989           echo "$LLVM_CONFIG --libs failed."
2990           exit 1
2991    fi
2992    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS"
2993    # The c++ standard library used by llvm doesn't show up in $LLVM_SYSTEM_LIBS so add it manually
2994    if echo $LLVM_CXXFLAGS | grep -q -- '-stdlib=libc++'; then
2995       LLVM_LIBS="$LLVM_LIBS -lc++"
2996    else
2997       LLVM_LIBS="$LLVM_LIBS -lstdc++"
2998    fi
2999
3000    expected_llvm_version="3.4svn-mono-mono/e656cac"
3001
3002    else
3003        LLVM_CFLAGS="-I$with_llvm/include -DNDEBUG -D__NO_CTYPE_INLINE -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
3004        LLVM_CXXFLAGS="$LLVM_CFLAGS -std=gnu++11 -fvisibility-inlines-hidden -fno-rtti -Woverloaded-virtual -Wcast-qual"
3005        LLVM_LDFLAGS="-L$with_llvm/lib"
3006        LLVM_SYSTEM_LIBS="-lshell32 -lpsapi -limagehlp -ldbghelp -lm"
3007        LLVM_LIBS="-lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter \
3008          -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo \
3009          -lLLVMARMAsmPrinter -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler \
3010          -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc \
3011          -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT \
3012          -lLLVMAnalysis -lLLVMTarget \
3013          -lLLVMIRReader -lLLVMAsmParser -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation \
3014          -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils \
3015          -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld \
3016          -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore \
3017          -lLLVMSupport -lstdc++"
3018        LLVM_LIBS="$LLVM_LIBS $LLVM_SYSTEM_LIBS"
3019
3020        llvm_config_path=$with_llvm/include/llvm/Config/llvm-config.h
3021        llvm_api_version=`awk '/MONO_API_VERSION/ { print $3 }' $llvm_config_path`
3022    fi  
3023
3024    if test "x$llvm_api_version" = "x"; then
3025           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
3026           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
3027    else
3028           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
3029           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
3030    fi   
3031
3032    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraries])
3033
3034    AC_SUBST(LLVM_CFLAGS)
3035    AC_SUBST(LLVM_CXXFLAGS)
3036    AC_SUBST(LLVM_LIBS)
3037    AC_SUBST(LLVM_LDFLAGS)
3038    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
3039 fi
3040
3041 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
3042 if test "x$enable_loadedllvm" = "xyes"; then
3043    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
3044 fi
3045 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
3046
3047 if test "x$enable_llvm" = "xyes"; then
3048    enable_llvm_runtime=yes
3049 fi
3050 if test "x$enable_llvm_runtime" = "xyes"; then
3051    AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
3052 fi
3053 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes])
3054
3055 TARGET="unknown"
3056 ACCESS_UNALIGNED="yes"
3057
3058 LIBC="libc.so.6"
3059 INTL="libc.so.6"
3060 SQLITE="libsqlite.so.0"
3061 SQLITE3="libsqlite3.so.0"
3062 X11="libX11.so"
3063 GDKX11="libgdk-x11-2.0.so.0"
3064 GTKX11="libgtk-x11-2.0.so.0"
3065 XINERAMA="libXinerama.so.1"
3066
3067 sizeof_register="SIZEOF_VOID_P"
3068
3069 jit_wanted=true
3070 boehm_supported=true
3071 BTLS_SUPPORTED=no
3072 BTLS_PLATFORM=
3073
3074 if test "x$enable_wasm" = "xyes"; then
3075 TARGET=WASM
3076 HOST=WASM
3077 arch_target=wasm
3078 AC_DEFINE(TARGET_WASM, 1, [Target wasm])
3079 AC_DEFINE(HOST_WASM, 1, [Host wasm])
3080 BTLS_SUPPORTED=no
3081 with_tls=pthread
3082 target_mach=no
3083
3084 else
3085
3086 case "$host" in
3087         mips*)
3088                 TARGET=MIPS;
3089                 arch_target=mips;
3090                 with_tls=pthread;
3091                 ACCESS_UNALIGNED="no"
3092
3093                 AC_MSG_CHECKING(for mips n32)
3094                 AC_TRY_COMPILE([],[
3095                 #if _MIPS_SIM != _ABIN32
3096                 #error Not mips n32
3097                 #endif
3098                 return 0;
3099                 ],[
3100                 AC_MSG_RESULT(yes)
3101                 sizeof_register=8
3102                 ],[
3103                 AC_MSG_RESULT(no)
3104                 ])
3105                 ;;
3106         i*86-*-*)
3107                 TARGET=X86;
3108                 arch_target=x86;
3109                 case $host_os in
3110                   solaris*)
3111                         LIBC="libc.so"
3112                         INTL="libintl.so"
3113                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
3114                                 TARGET=AMD64
3115                                 arch_target=amd64
3116                         fi
3117
3118                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
3119                         # int astruct __attribute__ ((visibility ("hidden")));
3120                         # void foo ()
3121                         # {
3122                         #       void *p = &astruct;
3123                         # }
3124                         # gcc -fPIC --shared -o libfoo.so foo.c
3125                         # yields:
3126                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
3127                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
3128                         have_visibility_hidden=no
3129                         ;;
3130                   mingw*|cygwin*)
3131                         have_visibility_hidden=no                 
3132                         ;;
3133                   haiku*)
3134                         LIBC=libroot.so
3135                         ;;
3136                   linux*)
3137                         AOT_SUPPORTED="yes"
3138                         BTLS_SUPPORTED=yes
3139                         BTLS_PLATFORM=i386
3140                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3141                         ;;
3142                   darwin*)
3143                         AOT_SUPPORTED="yes"
3144                         BTLS_SUPPORTED=yes
3145                         BTLS_PLATFORM=i386
3146                         ;;
3147                   openbsd*|freebsd*|kfreebsd-gnu*)
3148                         ;;
3149                 esac
3150                 ;;
3151         x86_64-*-* | amd64-*-*)
3152                 TARGET=AMD64;
3153                 arch_target=amd64;
3154                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
3155                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3156                         sizeof_register=8
3157                 fi
3158                 case $host_os in
3159                   linux*)
3160                         AOT_SUPPORTED="yes"
3161                         BTLS_SUPPORTED=yes
3162                         BTLS_PLATFORM=x86_64
3163                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3164                         ;;
3165                   darwin*)
3166                         AOT_SUPPORTED="yes"
3167                         BTLS_SUPPORTED=yes
3168                         BTLS_PLATFORM=x86_64
3169                         boehm_supported=false
3170                         ;;
3171                   openbsd*|freebsd*|kfreebsd-gnu*)
3172                         ;;
3173                   mingw*)
3174                         ;;
3175                 esac
3176                 ;;
3177         sparc*-*-*)
3178                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3179                    TARGET=SPARC64
3180                 else
3181                         TARGET=SPARC
3182                 fi
3183                 arch_target=sparc;
3184                 ACCESS_UNALIGNED="no"
3185                 case $host_os in
3186                   linux*) ;;
3187                   *)
3188                         LIBC="libc.so"
3189                         INTL="libintl.so"
3190                 esac
3191                 if test x"$GCC" = xyes; then
3192                         # We don't support v8 cpus
3193                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
3194                 fi
3195                 if test x"$AR" = xfalse; then
3196                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
3197                 fi
3198                 ;;
3199         *-mingw*|*-*-cygwin*)
3200                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
3201                 have_visibility_hidden=no
3202                 INTL="intl"
3203                 ;;
3204         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
3205         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
3206                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3207                         TARGET=POWERPC64;
3208                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
3209                         CFLAGS="$CFLAGS -mminimal-toc"
3210                 else
3211                         TARGET=POWERPC;
3212                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
3213                 fi
3214                 arch_target=ppc;
3215                 case $host_os in
3216                   linux*|darwin*)
3217                         ;;
3218                 esac
3219                 ;;
3220         armv7k-*-darwin*)
3221                 TARGET=ARM;
3222                 TARGET_SYS=WATCHOS
3223                 arch_target=arm;
3224                 arm_fpu=VFP_HARD
3225                 ACCESS_UNALIGNED="no"
3226                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3227                 ;;
3228
3229         arm*-darwin*)
3230                 TARGET=ARM;
3231                 arch_target=arm;
3232                 ACCESS_UNALIGNED="no"
3233                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3234                 ;;
3235         arm*-linux*)
3236                 TARGET=ARM;
3237                 arch_target=arm;
3238                 ACCESS_UNALIGNED="no"
3239                 AOT_SUPPORTED="yes"
3240                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3241                 BTLS_SUPPORTED=yes
3242                 BTLS_PLATFORM=arm
3243                 AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3244                 case "$target" in
3245                 arm*-linux*-gnueabi)
3246                         BTLS_PLATFORM=armsoft
3247                         ;;
3248                 esac
3249                 ;;
3250         arm*-netbsd*-eabi*)
3251                 TARGET=ARM;
3252                 arch_target=arm;
3253                 ACCESS_UNALIGNED="no"
3254                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3255                 ;;
3256         aarch64-*)
3257                 # https://lkml.org/lkml/2012/7/15/133
3258                 TARGET=ARM64
3259                 arch_target=arm64
3260                 boehm_supported=false
3261                 AOT_SUPPORTED="yes"
3262                 BTLS_SUPPORTED=yes
3263                 BTLS_PLATFORM=aarch64
3264                 AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3265                 ;;
3266         s390x-*-linux*)
3267                 TARGET=S390X;
3268                 arch_target=s390x;
3269                 ACCESS_UNALIGNED="yes"
3270                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
3271                 ;;
3272 esac
3273
3274 HOST=$TARGET
3275
3276 if test "x$host" != "x$target"; then
3277    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
3278    enable_mcs_build=no
3279    BTLS_SUPPORTED=no
3280    case "$target" in
3281    arm*-darwin*)
3282                 TARGET=ARM;
3283                 arch_target=arm;
3284                 ACCESS_UNALIGNED="no"
3285                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3286                 # Can't use tls, since it depends on the runtime detection of tls offsets
3287                 # in mono-compiler.h
3288                 with_tls=pthread
3289                 case "$target" in
3290                 armv7k-*)
3291                         arm_fpu=VFP_HARD
3292                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
3293                         ;;
3294                 esac            
3295                 ;;
3296    powerpc64-ps3-linux-gnu)
3297                 TARGET=POWERPC64
3298                 arch_target=powerpc64
3299                 AC_DEFINE(TARGET_PS3, 1, [...])
3300                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3301                 # uses this define
3302                 AC_DEFINE(__mono_ppc64__, 1, [...])
3303                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3304                 sizeof_register=8
3305                 target_byte_order=G_BIG_ENDIAN
3306                 ;;
3307    powerpc64-xbox360-linux-gnu)
3308                 TARGET=POWERPC64
3309                 arch_target=powerpc64
3310                 AC_DEFINE(TARGET_XBOX360, 1, [...])
3311                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3312                 # uses this define
3313                 sizeof_register=8
3314                 target_byte_order=G_BIG_ENDIAN
3315                 ;;
3316    arm*-linux-*)
3317                 TARGET=ARM;
3318                 arch_target=arm;
3319                 AC_DEFINE(TARGET_ARM, 1, [...])
3320                 ACCESS_UNALIGNED="no"
3321                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3322                 # Can't use tls, since it depends on the runtime detection of tls offsets
3323                 # in mono-compiler.h
3324                 with_tls=pthread
3325                 target_mach=no
3326                 case "$target" in
3327                 armv7l-unknown-linux-gnueabi*)
3328                         # TEGRA
3329                         CPPFLAGS="$CPPFLAGS"
3330                         ;;
3331                 armv5-*-linux-androideabi*)
3332                         AC_DEFINE(TARGET_ANDROID, 1, [...])
3333                         CPPFLAGS="$CPPFLAGS"
3334                         ;;
3335                 *-linux-androideabi*)
3336                         AC_DEFINE(TARGET_ANDROID, 1, [...])
3337                         CPPFLAGS="$CPPFLAGS"
3338                         ;;
3339                 esac
3340                 ;;
3341    arm*-netbsd*-eabi*)
3342                 TARGET=ARM;
3343                 arch_target=arm;
3344                 AC_DEFINE(TARGET_ARM, 1, [...])
3345                 ACCESS_UNALIGNED="no"
3346                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3347                 # Can't use tls, since it depends on the runtime detection of tls offsets
3348                 # in mono-compiler.h
3349                 with_tls=pthread
3350                 target_mach=no
3351                 ;;
3352    i686*-linux-*)
3353                 TARGET=X86;
3354                 arch_target=x86;
3355                 AC_DEFINE(TARGET_X86, 1, [...])
3356                 CPPFLAGS="$CPPFLAGS"
3357                 # Can't use tls, since it depends on the runtime detection of tls offsets
3358                 # in mono-compiler.h            
3359                 with_tls=pthread
3360                 target_mach=no
3361
3362                 case "$target" in
3363                 *-linux-android*)
3364                         AC_DEFINE(TARGET_ANDROID, 1, [...])
3365                         ;;
3366                 esac
3367                 ;;
3368    x86_64*-linux-*)
3369                 TARGET=AMD64;
3370                 arch_target=amd64;
3371                 AC_DEFINE(TARGET_AMD64, 1, [...])
3372                 CPPFLAGS="$CPPFLAGS"
3373                 # Can't use tls, since it depends on the runtime detection of tls offsets
3374                 # in mono-compiler.h
3375                 with_tls=pthread
3376                 target_mach=no
3377
3378                 case "$target" in
3379                 *-linux-android*)
3380                         AC_DEFINE(TARGET_ANDROID, 1, [...])
3381                         ;;
3382                 esac
3383                 ;;
3384    x86_64-ps4-freebsd)
3385                 TARGET=AMD64;
3386                 arch_target=amd64;
3387                 AC_DEFINE(TARGET_AMD64, 1, [...])
3388                 AC_DEFINE(TARGET_PS4, 1, [...])
3389                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
3390                 CPPFLAGS="$CPPFLAGS"
3391                 # Can't use tls, since it depends on the runtime detection of tls offsets
3392                 # in mono-compiler.h
3393                 with_tls=pthread
3394                 target_mach=no
3395                 target_win32=no
3396                 ;;
3397    aarch64*-linux-*)
3398                 TARGET=ARM64;
3399                 arch_target=arm64;
3400                 AC_DEFINE(TARGET_ARM64, 1, [...])
3401                 CPPFLAGS="$CPPFLAGS"
3402                 # Can't use tls, since it depends on the runtime detection of tls offsets
3403                 # in mono-compiler.h
3404                 with_tls=pthread
3405                 target_mach=no
3406                 case "$target" in
3407                 *-linux-android*)
3408                         AC_DEFINE(TARGET_ANDROID, 1, [...])
3409                         ;;
3410                 esac
3411                 ;;
3412         aarch64-*)
3413                 TARGET=ARM64
3414                 ;;
3415         *)
3416                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
3417         esac
3418 fi
3419
3420 case "$TARGET" in
3421 X86)
3422         AC_DEFINE(TARGET_X86, 1, [...])
3423         ;;
3424 AMD64)
3425         AC_DEFINE(TARGET_AMD64, 1, [...])
3426         ;;
3427 ARM)
3428         AC_DEFINE(TARGET_ARM, 1, [...])
3429         ;;
3430 ARM64)
3431         AC_DEFINE(TARGET_ARM64, 1, [...])
3432         ;;
3433 POWERPC)
3434         AC_DEFINE(TARGET_POWERPC, 1, [...])
3435         ;;
3436 POWERPC64)
3437         AC_DEFINE(TARGET_POWERPC, 1, [...])
3438         AC_DEFINE(TARGET_POWERPC64, 1, [...])
3439         ;;
3440 S390X)
3441         AC_DEFINE(TARGET_S390X, 1, [...])
3442         ;;
3443 MIPS)
3444         AC_DEFINE(TARGET_MIPS, 1, [...])
3445         ;;
3446 SPARC)
3447         AC_DEFINE(TARGET_SPARC, 1, [...])
3448         ;;
3449 SPARC64)
3450         AC_DEFINE(TARGET_SPARC64, 1, [...])
3451         ;;
3452 esac
3453
3454 case "$HOST" in
3455 X86)
3456         AC_DEFINE(HOST_X86, 1, [...])
3457         ;;
3458 AMD64)
3459         AC_DEFINE(HOST_AMD64, 1, [...])
3460         ;;
3461 ARM)
3462         AC_DEFINE(HOST_ARM, 1, [...])
3463         ;;
3464 ARM64)
3465         AC_DEFINE(HOST_ARM64, 1, [...])
3466         ;;
3467 POWERPC)
3468         AC_DEFINE(HOST_POWERPC, 1, [...])
3469         ;;
3470 POWERPC64)
3471         AC_DEFINE(HOST_POWERPC, 1, [...])
3472         AC_DEFINE(HOST_POWERPC64, 1, [...])
3473         ;;
3474 S390X)
3475         AC_DEFINE(HOST_S390X, 1, [...])
3476         ;;
3477 MIPS)
3478         AC_DEFINE(HOST_MIPS, 1, [...])
3479         ;;
3480 SPARC)
3481         AC_DEFINE(HOST_SPARC, 1, [...])
3482         ;;
3483 SPARC64)
3484         AC_DEFINE(HOST_SPARC64, 1, [...])
3485         ;;
3486 esac
3487
3488 #WASM hack
3489 fi
3490
3491
3492 dnl *************
3493 dnl *** VTUNE ***
3494 dnl *************
3495
3496 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
3497 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
3498
3499 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
3500
3501 if test "x$enable_vtune" = "xyes"; then
3502         if test "x$with_vtune" = "x"; then
3503                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
3504         else
3505                 VTUNE_PATH=$with_vtune
3506         fi
3507         VTUNE_INCLUDE=$VTUNE_PATH/include
3508         case "$TARGET" in
3509         X86)
3510                 VTUNE_LIB=$VTUNE_PATH/lib32
3511                 ;;
3512         AMD64)
3513                 VTUNE_LIB=$VTUNE_PATH/lib64
3514                 ;;
3515         *)
3516                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
3517                 ;;
3518         esac
3519         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
3520                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
3521         fi
3522         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
3523                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
3524         fi
3525
3526         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
3527         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
3528
3529         AC_SUBST(VTUNE_LIBS)
3530         AC_SUBST(VTUNE_CFLAGS)
3531 fi
3532 dnl Use GCC atomic ops if they work on the target.
3533 if test x$GCC = "xyes"; then
3534         case $TARGET in
3535         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
3536                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
3537                 ;;
3538         esac
3539 fi
3540
3541 if test "x$target_mach" = "xyes"; then
3542
3543    if test "x$TARGET_SYS" = "xWATCHOS"; then
3544           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
3545           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3546           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3547           BTLS_SUPPORTED=no
3548    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
3549           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3550           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3551           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3552           BTLS_SUPPORTED=no
3553    else
3554        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
3555        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
3556        #error fail this for ios
3557        #endif
3558        return 0;
3559        ], [
3560                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
3561           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
3562           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
3563           target_osx=yes
3564        ], [
3565           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3566           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3567           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3568           BTLS_SUPPORTED=no
3569                   target_ios=yes
3570        ])
3571         fi
3572    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
3573 fi
3574
3575 AM_CONDITIONAL(TARGET_OSX, test x$target_osx = xyes)
3576
3577 if test "x$sizeof_register" = "x4"; then
3578    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
3579 elif test "x$sizeof_register" = "x8"; then
3580    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
3581 else
3582    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
3583 fi
3584
3585 AC_SUBST(SIZEOF_VOID_P,[$ac_cv_sizeof_void_p])
3586
3587 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
3588    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
3589 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
3590    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
3591 else
3592    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
3593 fi
3594
3595 if test "x$have_visibility_hidden" = "xyes"; then
3596    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
3597 fi
3598
3599 if test "x$have_deprecated" = "xyes"; then
3600    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
3601 fi
3602
3603 AC_ARG_ENABLE(interpreter, [  --enable-interpreter       Enable Interpreter], enable_interpreter=$enableval, enable_interpreter=no)
3604
3605 if test "x$enable_interpreter" = "xyes"; then
3606         AC_DEFINE(ENABLE_INTERPRETER, 1, [Enable Interpreter])
3607 fi
3608
3609 AM_CONDITIONAL(ENABLE_INTERPRETER, [test x$enable_interpreter = xyes])
3610
3611 dnl 
3612 dnl Simple Generational checks (sgen)
3613 dnl
3614 SGEN_DEFINES=
3615 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
3616 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
3617 if test x$buildsgen = xyes; then
3618    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
3619    SGEN_DEFINES="-DHAVE_SGEN_GC"
3620
3621         conc_gc_msg=""
3622    if test x$with_sgen_default_concurrent != xno; then
3623        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
3624            conc_gc_msg=" (concurrent by default)"
3625    fi
3626
3627    if test "x$gc_msg" = "x"; then
3628       gc_msg="sgen$conc_gc_msg"
3629    else
3630       gc_msg="sgen$conc_gc_msg and $gc_msg"
3631    fi
3632 fi
3633 AC_SUBST(SGEN_DEFINES)
3634 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
3635
3636 jit_status="Building and using the JIT"
3637
3638 libsuffix=".so"
3639
3640 case "$host" in
3641      *-*-darwin*)
3642         libsuffix=".dylib"
3643         LIBC="libc.dylib"
3644         INTL="libintl.dylib"
3645         SQLITE="libsqlite.0.dylib"
3646         SQLITE3="libsqlite3.0.dylib"
3647         X11="libX11.dylib"
3648         GDKX11="libgdk-x11-2.0.dylib"
3649         GTKX11="libgtk-x11-2.0.dylib"
3650         ;;
3651      *-*-*netbsd*)
3652         LIBC="libc.so"
3653         INTL="libintl.so"
3654         SQLITE="libsqlite.so"
3655         SQLITE3="libsqlite3.so"
3656         ;;
3657      *-*-kfreebsd*-gnu)
3658         LIBC="libc.so.0.1"
3659         INTL="libc.so.0.1"
3660         X11="libX11.so.6"
3661         ;;
3662     *-*-*freebsd*)
3663         LIBC="libc.so.7"
3664         INTL="libintl.so"
3665         SQLITE="libsqlite.so"
3666         SQLITE3="libsqlite3.so"
3667         ;;
3668     *-*-*openbsd*)
3669         LIBC="libc.so"
3670         INTL="libintl.so"
3671         SQLITE="libsqlite.so"
3672         SQLITE3="libsqlite3.so"
3673         ;;
3674     *-*-*linux*)
3675         AC_PATH_X
3676         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
3677         AC_MSG_CHECKING(for the soname of libX11.so)
3678         for i in $x_libraries $dlsearch_path; do
3679                 for r in 4 5 6; do
3680                         if test -f $i/libX11.so.$r; then
3681                                 X11=libX11.so.$r
3682                                 AC_MSG_RESULT($X11)
3683                         fi
3684                 done
3685         done
3686         
3687         if test "x$X11" = "xlibX11.so"; then
3688                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
3689                 X11=libX11.so.6
3690         fi
3691         ;;
3692 esac
3693
3694 AC_SUBST(libsuffix)
3695
3696 ######################################
3697 # EGLIB CHECKS
3698 ######################################
3699
3700 GNUC_PRETTY=
3701 GNUC_UNUSED=
3702 BREAKPOINT="G_STMT_START { raise (SIGTRAP); } G_STMT_END"
3703 if test x$GCC = xyes; then
3704    GNUC_UNUSED='__attribute__((__unused__))'
3705    GNUC_NORETURN='__attribute__((__noreturn__))'
3706    case $host_cpu in
3707      i*86|x86_64) BREAKPOINT="G_STMT_START { __asm__ (\"int \$03\"); } G_STMT_END" ;;
3708    esac
3709 fi
3710 AC_SUBST(GNUC_PRETTY)
3711 AC_SUBST(GNUC_UNUSED)
3712 AC_SUBST(GNUC_NORETURN)
3713 AC_SUBST(BREAKPOINT)
3714
3715 AC_C_BIGENDIAN([ORDER=G_BIG_ENDIAN],[ORDER=G_LITTLE_ENDIAN])
3716
3717 case $host in
3718 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
3719     PATHSEP='\\'
3720     SEARCHSEP=';'
3721     OS="WIN32"
3722     PIDTYPE='void *'
3723     ;;
3724 *)
3725     PATHSEP='/'
3726     SEARCHSEP=':'
3727     OS="UNIX"
3728     PIDTYPE='int'
3729     ;;
3730 esac
3731
3732 case $host in
3733         *-*-solaris*)
3734         CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS"
3735         ;;
3736 esac
3737
3738 case $target in
3739 arm*-darwin*|aarch64*-*)
3740     CFLAGS="$CFLAGS -U_FORTIFY_SOURCE"
3741     ;;
3742 i*86-*-darwin*)
3743     ORDER=G_LITTLE_ENDIAN
3744     ;;
3745 *-*-haiku*)
3746     LDFLAGS="$LDFLAGS -ltextencoding"
3747     ;;
3748 *-*-openbsd*)
3749     CFLAGS="$CFLAGS -pthread"
3750     LDFLAGS="$LDFLAGS -pthread"
3751     ;;
3752 esac
3753
3754 AC_SUBST(ORDER)
3755 AC_SUBST(CFLAGS)
3756 AC_SUBST(PATHSEP)
3757 AC_SUBST(SEARCHSEP)
3758 AC_SUBST(OS)
3759 AC_SUBST(PIDTYPE)
3760
3761 # Defined for all targets/platforms using classic Windows API support.
3762 AC_DEFINE(HAVE_CLASSIC_WINAPI_SUPPORT, 1, [Use classic Windows API support])
3763 AC_DEFINE(HAVE_UWP_WINAPI_SUPPORT, 0, [Don't use UWP Windows API support])
3764
3765 AC_CHECK_FUNCS(strlcpy stpcpy strtok_r rewinddir vasprintf strerror_r)
3766 AC_CHECK_FUNCS(getrlimit)
3767 AC_CHECK_FUNCS(fork execv execve)
3768
3769 AC_ARG_WITH([overridable-allocators], [  --with-overridable-allocators  allow g_*alloc/g_free to call custom allocators set via g_mem_set_vtable])
3770
3771 if test x$with_overridable_allocators = xyes; then
3772         AC_DEFINE(ENABLE_OVERRIDABLE_ALLOCATORS,1,[Overridable allocator support enabled])
3773   AC_MSG_NOTICE([Overridable allocator support enabled])
3774 else
3775   AC_MSG_NOTICE([Overridable allocator support disabled])
3776 fi
3777
3778 #
3779 # Mono currently supports 10.6, but strndup is not available prior to 10.7; avoiding
3780 # the detection of strndup on OS X so Mono built on 10.7+ still runs on 10.6. This can be
3781 # removed once support for 10.6 is dropped.
3782 #
3783 # iOS detection of strndup and getpwuid_r is faulty for some reason so let's simply avoid it
3784 #
3785 if test x$target_osx = xyes; then
3786 AC_CHECK_FUNCS(getpwuid_r)
3787 elif test x$target_ios = xno; then
3788 AC_CHECK_FUNCS(strndup getpwuid_r)
3789 fi
3790
3791 AM_CONDITIONAL(NEED_VASPRINTF, test x$ac_cv_func_vasprintf = xno || test x$with_overridable_allocators = xyes)
3792 AM_ICONV()
3793 AC_SEARCH_LIBS(sqrtf, m)
3794
3795 # nanosleep may not be part of libc, also search it in other libraries
3796 AC_SEARCH_LIBS(nanosleep, rt)
3797
3798 AC_SEARCH_LIBS(dlopen, dl)
3799 old_ldflags="${LDFLAGS}"
3800 LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
3801 AC_TRY_LINK(, [int i;], found_export_dynamic=yes, found_export_dynamic=no)
3802 if test $found_export_dynamic = no; then
3803         LDFLAGS="${old_ldflags}"
3804 fi
3805
3806 AC_MSG_CHECKING(for varargs macros)
3807 AC_TRY_COMPILE([],[
3808 int foo (int i, int j);
3809 #define bar(...) foo (1, __VA_ARGS__)
3810 void main () {
3811          bar (2);
3812 }
3813 ],have_iso_varargs=yes,have_iso_varargs=no)
3814 AC_MSG_RESULT($have_iso_varargs)
3815 G_HAVE_ISO_VARARGS=0
3816 if test "x$have_iso_varargs" = "xyes"; then
3817    G_HAVE_ISO_VARARGS=1
3818 fi
3819 AC_SUBST(G_HAVE_ISO_VARARGS)
3820
3821 AC_CHECK_HEADERS(getopt.h sys/select.h sys/time.h sys/wait.h pwd.h iconv.h localcharset.h sys/types.h sys/resource.h)
3822 AC_CHECK_LIB([iconv], [locale_charset],[],[AC_CHECK_LIB([charset], [locale_charset],[LIBS+="-liconv -lcharset"])])
3823 AC_CHECK_HEADER(alloca.h, [HAVE_ALLOCA_H=1], [HAVE_ALLOCA_H=0])
3824 AC_SUBST(HAVE_ALLOCA_H)
3825
3826 if test $ac_cv_sizeof_void_p = $ac_cv_sizeof_int; then
3827    GPOINTER_TO_INT="((gint) (ptr))"
3828    GPOINTER_TO_UINT="((guint) (ptr))"
3829    GINT_TO_POINTER="((gpointer) (v))"
3830    GUINT_TO_POINTER="((gpointer) (v))"
3831    GSIZE="int"
3832    GSIZE_FORMAT='"u"'
3833 elif test $ac_cv_sizeof_void_p = $ac_cv_sizeof_long; then
3834    GPOINTER_TO_INT="((gint)(long) (ptr))"
3835    GPOINTER_TO_UINT="((guint)(long) (ptr))"
3836    GINT_TO_POINTER="((gpointer)(glong) (v))"
3837    GUINT_TO_POINTER="((gpointer)(gulong) (v))"
3838    GSIZE="long"
3839    GSIZE_FORMAT='"lu"'
3840 elif test $ac_cv_sizeof_void_p = $ac_cv_sizeof_long_long; then
3841    GPOINTER_TO_INT="((gint)(long long) (ptr))"
3842    GPOINTER_TO_UINT="((guint)(unsigned long long) (ptr))"
3843    GINT_TO_POINTER="((gpointer)(long long) (v))"
3844    GUINT_TO_POINTER="((gpointer)(unsigned long long) (v))"
3845    GSIZE="long long"
3846    GSIZE_FORMAT='"I64u"'
3847 else
3848    AC_MSG_ERROR([unsupported pointer size])
3849 fi
3850
3851 AC_SUBST(GPOINTER_TO_INT)
3852 AC_SUBST(GPOINTER_TO_UINT)
3853 AC_SUBST(GINT_TO_POINTER)
3854 AC_SUBST(GUINT_TO_POINTER)
3855 AC_SUBST(GSIZE)
3856 AC_SUBST(GSIZE_FORMAT)
3857 AC_SUBST(G_GUINT64_FORMAT)
3858 AC_SUBST(G_GINT64_FORMAT)
3859 AC_SUBST(G_GUINT32_FORMAT)
3860 AC_SUBST(G_GINT32_FORMAT)
3861
3862 #
3863 # END OF EGLIB CHECKS
3864 #
3865
3866 AC_ARG_WITH([libgdiplus],
3867         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3868         [], [with_libgdiplus=installed])
3869
3870 # default install location
3871 libgdiplus_install_loc=libgdiplus${libsuffix}
3872 case "$host" in
3873     *-*-*linux*)
3874     libgdiplus_install_loc=libgdiplus${libsuffix}.0
3875     ;;
3876 esac
3877
3878 case $with_libgdiplus in
3879     no|installed)
3880     libgdiplus_loc=
3881     ;;
3882
3883     yes|sibling)
3884     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3885     ;;
3886
3887     /*) # absolute path, assume it is an install location
3888     libgdiplus_loc=$with_libgdiplus
3889     libgdiplus_install_loc=$with_libgdiplus
3890     ;;
3891
3892     *)
3893     libgdiplus_loc=`pwd`/$with_libgdiplus
3894     ;;
3895 esac
3896 AC_SUBST([libgdiplus_loc])
3897 AC_SUBST([libgdiplus_install_loc])
3898
3899 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3900 if test "x$icall_symbol_map" = "xyes"; then
3901    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3902 fi
3903
3904 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3905 if test "x$icall_export" = "xyes"; then
3906    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3907 fi
3908
3909 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3910 if test "x$icall_tables" = "xno"; then
3911    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3912 fi
3913
3914 if test "x$with_tls" = "x__thread"; then
3915         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3916         # Pass the information to libgc
3917         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3918         AC_MSG_CHECKING(if the tls_model attribute is supported)
3919         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3920                 ], [
3921                         AC_MSG_RESULT(yes)
3922                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3923                 ], [
3924                         AC_MSG_RESULT(no)
3925         ])
3926 fi
3927
3928 if test ${TARGET} = ARM; then
3929         dnl ******************************************
3930         dnl *** Check to see what FPU is available ***
3931         dnl ******************************************
3932         AC_MSG_CHECKING(which FPU to use)
3933
3934         #
3935         # This is a bit tricky:
3936         #
3937         # if (__ARM_PCS_VFP) {
3938         #       /* mfloat-abi=hard == VFP with hard ABI */
3939         # } elif (!__SOFTFP__) {
3940         #       /* mfloat-abi=softfp == VFP with soft ABI */
3941         # } else {
3942         #       /* mfloat-abi=soft == no VFP */
3943         # }
3944         #
3945         # The exception is iOS (w/ GCC) where none of the above
3946         # are defined (but iOS always uses the 'softfp' ABI).
3947         #
3948         # No support for FPA.
3949         #
3950
3951         fpu=NONE
3952
3953         # iOS GCC always uses the 'softfp' ABI.
3954         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
3955                 fpu=VFP
3956         fi
3957
3958         # Are we using the 'hard' ABI?
3959         if test x$fpu = xNONE; then
3960                 AC_TRY_COMPILE([], [
3961                         #ifndef __ARM_PCS_VFP
3962                         #error "Float ABI is not 'hard'"
3963                         #endif
3964                         return 0;
3965                 ], [
3966                         fpu=VFP_HARD
3967                 ], [
3968                         fpu=NONE
3969                 ])
3970         fi
3971
3972         # No 'hard' ABI. 'soft' or 'softfp'?
3973         if test x$fpu = xNONE; then
3974                 AC_TRY_COMPILE([], [
3975                         #ifdef __SOFTFP__
3976                         #error "Float ABI is not 'softfp'"
3977                         #endif
3978                         return 0;
3979                 ], [
3980                         fpu=VFP
3981                 ], [
3982                         fpu=NONE
3983                 ])
3984         fi
3985
3986         if test x$arm_fpu != x; then
3987            fpu=$arm_fpu
3988         fi
3989
3990         AC_MSG_RESULT($fpu)
3991         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3992         unset fpu
3993
3994         dnl *********************************************
3995         dnl *** Check which ARM version(s) we can use ***
3996         dnl *********************************************
3997         AC_MSG_CHECKING(which ARM version to use)
3998
3999         AC_TRY_COMPILE([], [
4000                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
4001                 #error Not on ARM v5.
4002                 #endif
4003                 return 0;
4004         ], [
4005                 arm_v5=yes
4006
4007                 arm_ver=ARMv5
4008         ], [])
4009
4010         AC_TRY_COMPILE([], [
4011                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
4012                 #error Not on ARM v6.
4013                 #endif
4014                 return 0;
4015         ], [
4016                 arm_v5=yes
4017                 arm_v6=yes
4018
4019                 arm_ver=ARMv6
4020         ], [])
4021
4022         AC_TRY_COMPILE([], [
4023                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
4024                 #error Not on ARM v7.
4025                 #endif
4026                 return 0;
4027         ], [
4028                 arm_v5=yes
4029                 arm_v6=yes
4030                 arm_v7=yes
4031
4032                 arm_ver=ARMv7
4033         ], [])
4034
4035         AC_MSG_RESULT($arm_ver)
4036
4037         if test x$arm_v5 = xyes; then
4038                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
4039                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
4040         fi
4041
4042         if test x$arm_v6 = xyes; then
4043                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
4044                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
4045         fi
4046
4047         if test x$arm_v7 = xyes; then
4048                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
4049                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
4050         fi
4051 fi
4052
4053 if test ${TARGET} = unknown; then
4054         CPPFLAGS="$CPPFLAGS -DNO_PORT"
4055         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
4056 fi
4057
4058 if test "x$platform_android" = "xyes"; then
4059         case "x${TARGET}" in
4060         xARM)
4061                 case "x$arm_ver" in
4062                 xARMv5)
4063                         BTLS_SUPPORTED=yes
4064                         BTLS_PLATFORM=android-armv5
4065                         ;;
4066                 xARMv6)
4067                         BTLS_SUPPORTED=yes
4068                         BTLS_PLATFORM=android-armv6
4069                         ;;
4070                 xARMv7)
4071                         BTLS_SUPPORTED=yes
4072                         BTLS_PLATFORM=android-armv7
4073                         ;;
4074                 *)
4075                         BTLS_SUPPORTED=no
4076                         ;;
4077                 esac
4078                 ;;
4079         xARM64)
4080                 BTLS_SUPPORTED=yes
4081                 BTLS_PLATFORM=android-v8a
4082                 ;;
4083         xX86)
4084                 BTLS_SUPPORTED=yes
4085                 BTLS_PLATFORM=android-x86
4086                 ;;
4087         xAMD64)
4088                 BTLS_SUPPORTED=yes
4089                 BTLS_PLATFORM=android-x64
4090                 ;;
4091         *)
4092                 BTLS_SUPPORTED=no
4093                 ;;
4094         esac
4095 fi
4096
4097 if test ${ACCESS_UNALIGNED} = no; then
4098         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
4099 fi
4100
4101 if test x$host_darwin = xyes; then
4102         AC_MSG_CHECKING([for ranlib that supports -no_warning_for_no_symbols option])
4103         AS_IF(
4104                 [$RANLIB -no_warning_for_no_symbols 2>&1 | grep -q "unknown option"],
4105                 [AC_MSG_RESULT([no])],
4106                 [
4107                         # avoid AR calling ranlib, libtool calls it anyway. suppress no symbols warning.
4108                         AR_FLAGS="Scru"
4109                         RANLIB="$RANLIB -no_warning_for_no_symbols"
4110                         AC_MSG_RESULT([yes])
4111                 ]
4112         )
4113 fi
4114
4115 case "x$libgc" in
4116         xincluded)
4117                 # Pass CPPFLAGS to libgc configure
4118                 # We should use a separate variable for this to avoid passing useless and
4119                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
4120                 # This should be executed late so we pick up the final version of CPPFLAGS
4121                 # The problem with this approach, is that during a reconfigure, the main
4122                 # configure scripts gets invoked with these arguments, so we use separate
4123                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
4124                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
4125                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
4126                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
4127                 fi
4128                 # Don't pass -finstrument-for-thread-suspension in, 
4129                 # if these are instrumented it will be very bad news 
4130                 # (infinite recursion, undefined parking behavior, etc)
4131                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
4132                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
4133                 if test "x$support_boehm" = "xyes"; then
4134                         AC_CONFIG_SUBDIRS(libgc)
4135                 fi
4136                 ;;
4137 esac
4138
4139 MALLOC_MEMPOOLS=no
4140 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
4141         if test x$with_malloc_mempools = xyes; then
4142                 MALLOC_MEMPOOLS=yes
4143                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
4144         fi
4145 ])
4146
4147
4148 DISABLE_MCS_DOCS=default
4149 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
4150         if test x$with_mcs_docs != xyes; then
4151                 DISABLE_MCS_DOCS=yes
4152         fi
4153 ])
4154 if test -n "$INSTALL_4_x_TRUE"; then :
4155         DISABLE_MCS_DOCS=yes
4156 fi
4157 if test "x$DISABLE_MCS_DOCS" = "xdefault"; then
4158    DISABLE_MCS_DOCS=$DISABLE_MCS_DOCS_default
4159 fi
4160
4161 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
4162         if test x$with_lazy_gc_thread_creation != xno ; then
4163                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
4164         fi
4165 ], [with_lazy_gc_thread_creation=no])
4166
4167 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])
4168
4169 if test x$with_cooperative_gc = xdefault; then
4170         with_cooperative_gc=$with_cooperative_gc_default
4171 fi
4172
4173 if test x$with_cooperative_gc != xno; then
4174         AC_DEFINE(USE_COOP_GC,1,[Enable cooperative stop-the-world garbage collection.])
4175 fi
4176
4177 AM_CONDITIONAL([ENABLE_COOP], [test x$with_cooperative_gc != xno])
4178
4179 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],[
4180
4181         if test x$enable_checked_build != x ; then
4182                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
4183         fi
4184         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
4185                 eval "mono_checked_build_test_enable_$feature='yes'"
4186         done
4187
4188         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
4189                 eval "mono_checked_build_test_enable_gc='yes'"
4190                 eval "mono_checked_build_test_enable_metadata='yes'"
4191                 eval "mono_checked_build_test_enable_thread='yes'"
4192         fi
4193
4194         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
4195                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
4196         fi
4197
4198         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
4199                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
4200         fi
4201
4202         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
4203                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
4204         fi
4205
4206 ], [])
4207
4208 AC_CHECK_HEADER([malloc.h], 
4209                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
4210                         [Define to 1 if you have /usr/include/malloc.h.])],,)
4211
4212 if test x"$GCC" = xyes; then
4213         # Implicit function declarations are not 64 bit safe
4214         # Do this late, since this causes lots of configure tests to fail
4215         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
4216         # jay has a lot of implicit declarations
4217         JAY_CFLAGS="-Wno-implicit-function-declaration"
4218 fi
4219
4220 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
4221 # instead of libmono-static.a
4222 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
4223    LIBMONO_LA=libmini-static.la
4224 else
4225    if test x$buildsgen = xyes; then
4226       LIBMONO_LA=libmonosgen-$API_VER.la
4227    else
4228       LIBMONO_LA=libmonoboehm-$API_VER.la
4229    fi
4230 fi
4231 AC_SUBST(LIBMONO_LA)
4232
4233 dnl **************
4234 dnl ***  Btls  ***
4235 dnl **************
4236
4237 AC_ARG_ENABLE(btls, [  --disable-btls             Disable the BoringTls provider], enable_btls=$enableval, enable_btls=$BTLS_SUPPORTED)
4238 AC_ARG_WITH(btls_android_ndk, [  --with-btls-android-ndk        Android NDK for BoringTls])
4239
4240 AM_CONDITIONAL(BTLS, test x$enable_btls = xyes)
4241
4242 btls_android=no
4243 if test "x$enable_btls" = "xyes"; then
4244         AC_PATH_PROG(CMAKE, [cmake], [no], [$PATH:/Applications/CMake.app/Contents/bin:/usr/local/bin])
4245         if test "x$CMAKE" = "xno"; then
4246                 AC_MSG_ERROR("cmake not found")
4247         fi
4248
4249         BTLS_ROOT=`cd $srcdir && pwd`/external/boringssl
4250         AC_SUBST(BTLS_ROOT)
4251
4252         btls_arch=
4253         btls_cflags=
4254         BTLS_CMAKE_ARGS=
4255
4256         case "$BTLS_PLATFORM" in
4257         i386)
4258                 btls_arch=i386
4259                 btls_cflags="-m32"
4260                 case $host_os in
4261                         darwin*)
4262                                 btls_cflags="$btls_cflags -arch i386"
4263                 esac
4264                 ;;
4265         x86_64)
4266                 btls_arch=x86_64
4267                 ;;
4268         arm)
4269                 btls_arch=arm
4270                 ;;
4271         armsoft)
4272                 btls_arch=arm
4273                 btls_cflags="-DOPENSSL_NO_ASM=1"
4274                 ;;
4275         aarch64)
4276                 btls_arch=aarch64
4277                 ;;
4278         android-armv5)
4279                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=12"
4280                 ;;
4281         android-armv6)
4282                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=12"
4283                 ;;
4284         android-armv7)
4285                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi-v7a\" -DANDROID_NATIVE_API_LEVEL=12"
4286                 ;;
4287         android-v8a)
4288                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"arm64-v8a\" -DANDROID_NATIVE_API_LEVEL=12"
4289                 ;;
4290         android-x86)
4291                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86\" -DANDROID_NATIVE_API_LEVEL=12"
4292                 ;;
4293         android-x64)
4294                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86_64\" -DANDROID_NATIVE_API_LEVEL=12"
4295                 ;;
4296         *)
4297                 AC_MSG_ERROR(Invalid BTLS platform)
4298         esac
4299
4300         if test "x$platform_android" = "xyes"; then
4301                 btls_android=yes
4302                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=$BTLS_ROOT/util/android-cmake/android.toolchain.cmake"
4303                 if test "x$with_btls_android_ndk" != "x"; then
4304                         BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DANDROID_NDK=\"$with_btls_android_ndk\""
4305                 else
4306                         AC_MSG_ERROR([Need to pass the --with-btls-android-ndk argument when building with BTLS support on Android.])
4307                 fi
4308         fi
4309
4310         if test "x$btls_arch" != "x"; then
4311                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DBTLS_ARCH=\"$btls_arch\""
4312         fi
4313
4314         BTLS_CFLAGS="$CPPFLAGS_FOR_BTLS $btls_cflags"
4315         AC_SUBST(BTLS_ARCH)
4316         AC_SUBST(BTLS_CFLAGS)
4317         AC_SUBST(BTLS_PLATFORM)
4318         AC_SUBST(BTLS_CMAKE_ARGS)
4319
4320         AC_DEFINE(HAVE_BTLS, 1, [BoringTls is supported])
4321 else
4322         enable_btls=no
4323 fi
4324
4325 AM_CONDITIONAL(BTLS_ANDROID, test x$btls_android = xyes)
4326
4327 if test x$DISABLE_MCS_DOCS = xyes; then
4328    docs_dir=""
4329 else
4330    docs_dir=docs
4331 fi
4332 AC_SUBST(docs_dir)
4333
4334 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
4335 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
4336
4337 libmono_ldflags="$libmono_ldflags $LIBS"
4338
4339 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
4340 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
4341 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
4342 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
4343 AM_CONDITIONAL(X86, test x$TARGET = xX86)
4344 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
4345 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
4346 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
4347 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
4348 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
4349 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
4350 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
4351 AM_CONDITIONAL(WASM, test x$TARGET = xWASM)
4352 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
4353 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
4354 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
4355 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
4356 AM_CONDITIONAL(HOST_WASM, test x$HOST = xWASM)
4357
4358 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
4359
4360 AC_SUBST(LIBC)
4361 AC_SUBST(INTL)
4362 AC_SUBST(SQLITE)
4363 AC_SUBST(SQLITE3)
4364 AC_SUBST(X11)
4365 AC_SUBST(GDKX11)
4366 AC_SUBST(GTKX11)
4367 AC_SUBST(XINERAMA)
4368 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
4369 AC_SUBST(arch_target)
4370 AC_SUBST(CFLAGS)
4371 AC_SUBST(CPPFLAGS)
4372 AC_SUBST(LDFLAGS)
4373
4374 #This must always be defined when building the runtime
4375 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
4376
4377 mono_build_root=`pwd`
4378 AC_SUBST(mono_build_root)
4379
4380 mono_runtime=mono/mini/mono
4381 AC_SUBST(mono_runtime)
4382
4383 CSC_LOCATION=`cd $srcdir && pwd`/external/roslyn-binaries/Microsoft.Net.Compilers/Microsoft.Net.Compilers.2.3.1/tools/csc.exe
4384
4385 if test $csc_compiler = mcs; then
4386   CSC=$mcs_topdir/class/lib/build/mcs.exe
4387 else
4388   CSC=$CSC_LOCATION
4389 fi
4390
4391 mono_cfg_root=$mono_build_root/runtime
4392 if test x$host_win32 = xyes; then
4393   if test "x$cross_compiling" = "xno"; then
4394     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
4395     CSC=`cygpath -m -a $CSC`
4396     CSC_LOCATION=`cygpath -m -a $CSC_LOCATION`
4397   else
4398     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
4399   fi
4400 else
4401   mono_cfg_dir=$mono_cfg_root/etc
4402 fi
4403 AC_SUBST(mono_cfg_dir)
4404
4405 AC_SUBST(CSC)
4406
4407 AC_CONFIG_FILES([po/mcs/Makefile.in])
4408
4409 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
4410 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
4411
4412 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
4413 [   depth=../../../..
4414     case $srcdir in
4415     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4416     .) reldir=$depth ;;
4417     *) reldir=$depth/$srcdir ;;
4418     esac
4419     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
4420     cd runtime/etc/mono/1.0
4421     rm -f machine.config
4422     $LN_S $reldir/data/net_1_1/machine.config machine.config
4423     cd $depth
4424 ],[LN_S='$LN_S'])
4425
4426 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
4427 [   depth=../../../..
4428     case $srcdir in
4429     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4430     .) reldir=$depth ;;
4431     *) reldir=$depth/$srcdir ;;
4432     esac
4433     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
4434     cd runtime/etc/mono/2.0
4435     rm -f machine.config
4436     $LN_S $reldir/data/net_2_0/machine.config machine.config
4437     cd $depth
4438 ],[LN_S='$LN_S'])
4439
4440 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
4441 [   depth=../../../..
4442     case $srcdir in
4443     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4444     .) reldir=$depth ;;
4445     *) reldir=$depth/$srcdir ;;
4446     esac
4447     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
4448     cd runtime/etc/mono/2.0
4449     rm -f web.config
4450     $LN_S $reldir/data/net_2_0/web.config web.config
4451     cd $depth
4452 ],[LN_S='$LN_S'])
4453
4454 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
4455 [   depth=../../..
4456     case $srcdir in
4457     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4458     .) reldir=$depth ;;
4459     *) reldir=$depth/$srcdir ;;
4460     esac
4461     $ac_aux_dir/install-sh -d runtime/etc/mono/
4462     cd runtime/etc/mono/
4463     rm -f browscap.ini
4464     $LN_S $reldir/data/browscap.ini browscap.ini
4465     cd $depth
4466 ],[LN_S='$LN_S'])
4467
4468 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
4469 [   depth=../../../../..
4470     case $srcdir in
4471     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4472     .) reldir=$depth ;;
4473     *) reldir=$depth/$srcdir ;;
4474     esac
4475     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
4476     cd runtime/etc/mono/2.0/Browsers
4477     rm -f Compat.browser
4478     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4479     cd $depth
4480 ],[LN_S='$LN_S'])
4481
4482 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
4483 [   depth=../../../../..
4484     case $srcdir in
4485     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4486     .) reldir=$depth ;;
4487     *) reldir=$depth/$srcdir ;;
4488     esac
4489     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
4490     cd runtime/etc/mono/4.0/Browsers
4491     rm -f Compat.browser
4492     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4493     cd $depth
4494 ],[LN_S='$LN_S'])
4495
4496 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
4497 [   depth=../../../../..
4498     case $srcdir in
4499     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4500     .) reldir=$depth ;;
4501     *) reldir=$depth/$srcdir ;;
4502     esac
4503     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
4504     cd runtime/etc/mono/4.5/Browsers
4505     rm -f Compat.browser
4506     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4507     cd $depth
4508 ],[LN_S='$LN_S'])
4509
4510 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
4511 [   depth=../../../..
4512     case $srcdir in
4513     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4514     .) reldir=$depth ;;
4515     *) reldir=$depth/$srcdir ;;
4516     esac
4517     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4518     cd runtime/etc/mono/4.0
4519     rm -f machine.config
4520     $LN_S $reldir/data/net_4_0/machine.config machine.config
4521     cd $depth
4522 ],[LN_S='$LN_S'])
4523
4524 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
4525 [   depth=../../../..
4526     case $srcdir in
4527     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4528     .) reldir=$depth ;;
4529     *) reldir=$depth/$srcdir ;;
4530     esac
4531     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4532     cd runtime/etc/mono/4.0
4533     rm -f web.config
4534     $LN_S $reldir/data/net_4_0/web.config web.config
4535     cd $depth
4536 ],[LN_S='$LN_S'])
4537
4538 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
4539 [   depth=../../../..
4540     case $srcdir in
4541     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4542     .) reldir=$depth ;;
4543     *) reldir=$depth/$srcdir ;;
4544     esac
4545     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4546     cd runtime/etc/mono/4.5
4547     rm -f machine.config
4548     $LN_S $reldir/data/net_4_5/machine.config machine.config
4549     cd $depth
4550 ],[LN_S='$LN_S'])
4551
4552 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
4553 [   depth=../../../..
4554     case $srcdir in
4555     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4556     .) reldir=$depth ;;
4557     *) reldir=$depth/$srcdir ;;
4558     esac
4559     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4560     cd runtime/etc/mono/4.5
4561     rm -f web.config
4562     $LN_S $reldir/data/net_4_5/web.config web.config
4563     cd $depth
4564 ],[LN_S='$LN_S'])
4565
4566 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])
4567 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])
4568
4569 AC_OUTPUT([
4570 Makefile
4571 mono-uninstalled.pc
4572 acceptance-tests/Makefile
4573 llvm/Makefile
4574 scripts/mono-find-provides
4575 scripts/mono-find-requires
4576 mono/Makefile
4577 mono/btls/Makefile
4578 mono/utils/Makefile
4579 mono/metadata/Makefile
4580 mono/dis/Makefile
4581 mono/cil/Makefile
4582 mono/arch/Makefile
4583 mono/arch/x86/Makefile
4584 mono/arch/amd64/Makefile
4585 mono/arch/ppc/Makefile
4586 mono/arch/sparc/Makefile
4587 mono/arch/s390x/Makefile
4588 mono/arch/arm/Makefile
4589 mono/arch/arm64/Makefile
4590 mono/arch/mips/Makefile
4591 mono/sgen/Makefile
4592 mono/tests/Makefile
4593 mono/tests/tests-config
4594 mono/tests/gc-descriptors/Makefile
4595 mono/tests/testing_gac/Makefile
4596 mono/unit-tests/Makefile
4597 mono/benchmark/Makefile
4598 mono/mini/Makefile
4599 mono/profiler/Makefile
4600 mono/eglib/Makefile
4601 mono/eglib/eglib-config.h
4602 m4/Makefile
4603 ikvm-native/Makefile
4604 scripts/Makefile
4605 man/Makefile
4606 docs/Makefile
4607 data/Makefile
4608 data/net_2_0/Makefile
4609 data/net_4_0/Makefile
4610 data/net_4_5/Makefile
4611 data/net_2_0/Browsers/Makefile
4612 data/net_4_0/Browsers/Makefile
4613 data/net_4_5/Browsers/Makefile
4614 data/mint.pc
4615 data/mono-2.pc
4616 data/monosgen-2.pc
4617 data/mono.pc
4618 data/mono-cairo.pc
4619 data/mono-nunit.pc
4620 data/mono-options.pc
4621 data/mono-lineeditor.pc
4622 data/monodoc.pc
4623 data/dotnet.pc
4624 data/dotnet35.pc
4625 data/wcf.pc
4626 data/cecil.pc
4627 data/system.web.extensions_1.0.pc
4628 data/system.web.extensions.design_1.0.pc
4629 data/system.web.mvc.pc
4630 data/system.web.mvc2.pc
4631 data/system.web.mvc3.pc
4632 data/aspnetwebstack.pc
4633 data/reactive.pc
4634 samples/Makefile
4635 support/Makefile
4636 data/config
4637 tools/Makefile
4638 tools/locale-builder/Makefile
4639 tools/sgen/Makefile
4640 tools/monograph/Makefile
4641 tools/pedump/Makefile
4642 runtime/Makefile
4643 msvc/Makefile
4644 po/Makefile
4645 ])
4646
4647 # Update all submodules recursively to ensure everything is checked out
4648 $srcdir/scripts/update_submodules.sh
4649
4650 if test x$host_win32 = xyes; then
4651    # Get rid of 'cyg' prefixes in library names
4652    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4653    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
4654    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
4655    # executable doesn't work...
4656    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4657 fi
4658
4659 if test x$host_darwin = xyes; then
4660    # This doesn't seem to be required and it slows down parallel builds
4661    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
4662 fi
4663
4664 (
4665   case $prefix in
4666   NONE) prefix=$ac_default_prefix ;;
4667   esac
4668   case $exec_prefix in
4669   NONE) exec_prefix='${prefix}' ;;
4670   esac
4671
4672   #
4673   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
4674   # any existing config.make.  This allows people to share the same source tree
4675   # with different build directories, one native and one cross
4676   #
4677   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
4678
4679     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
4680
4681     echo "prefix=$prefix" > $mcs_topdir/build/config.make
4682     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
4683     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
4684     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
4685     echo "mono_build_root=$mono_build_root" >> $mcs_topdir/build/config.make
4686     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
4687     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
4688     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
4689     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
4690
4691     case $INSTALL in
4692     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
4693     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
4694     esac
4695
4696     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
4697
4698     export VERSION
4699     [myver=$($AWK 'BEGIN {
4700       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
4701       if(length(vsplit [1]) > 4) {
4702         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
4703       }
4704       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
4705     }')]
4706
4707     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
4708     echo "MONO_CORLIB_VERSION = $MONO_CORLIB_VERSION" >> $mcs_topdir/build/config.make
4709
4710     if test x$host_darwin = xyes; then
4711       echo "BUILD_PLATFORM = darwin" >> $mcs_topdir/build/config.make
4712     elif test x$host_win32 = xyes; then
4713       echo "BUILD_PLATFORM = win32" >> $mcs_topdir/build/config.make
4714     else
4715       echo "BUILD_PLATFORM = linux" >> $mcs_topdir/build/config.make
4716     fi
4717
4718     if test x$host_darwin = xyes; then
4719       echo "HOST_PLATFORM ?= darwin" >> $mcs_topdir/build/config.make
4720     elif test x$host_win32 = xyes; then
4721       echo "HOST_PLATFORM ?= win32" >> $mcs_topdir/build/config.make
4722     else
4723       echo "HOST_PLATFORM ?= linux" >> $mcs_topdir/build/config.make
4724     fi
4725
4726     if test "x$PLATFORM_AOT_SUFFIX" != "x"; then
4727       echo "PLATFORM_AOT_SUFFIX = $PLATFORM_AOT_SUFFIX" >> $mcs_topdir/build/config.make
4728     fi
4729
4730         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
4731            enable_system_aot=yes
4732         fi
4733
4734     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
4735       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
4736     fi
4737
4738     if test x$DISABLE_MCS_DOCS = xyes; then
4739       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
4740     fi
4741
4742     if test x$has_extension_module != xno; then
4743         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
4744     fi
4745     
4746     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
4747     
4748     if test "x$test_bcl_opt" = "xyes"; then    
4749       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
4750     fi
4751
4752     echo "CSC_LOCATION = $CSC_LOCATION" >> $srcdir/$mcsdir/build/config.make
4753
4754     if test $csc_compiler = mcs; then
4755       echo "MCS_MODE = 1" >> $srcdir/$mcsdir/build/config.make
4756     fi
4757
4758     if test "x$AOT_BUILD_FLAGS" != "x" ; then
4759       echo "AOT_RUN_FLAGS=$AOT_RUN_FLAGS" >> $srcdir/$mcsdir/build/config.make
4760       echo "AOT_BUILD_FLAGS=$AOT_BUILD_FLAGS" >> $srcdir/$mcsdir/build/config.make
4761     fi
4762
4763     if test "x$enable_btls" = "xyes"; then
4764       echo "HAVE_BTLS=1" >> $srcdir/$mcsdir/build/config.make
4765     fi
4766
4767   fi
4768
4769 )
4770
4771 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
4772
4773 btls_platform_string=
4774 if test x$enable_btls = xyes; then
4775         if test x$btls_android = xyes; then
4776                 btls_platform_string=" (android:$BTLS_PLATFORM)"
4777         else
4778                 btls_platform_string=" ($BTLS_PLATFORM)"
4779         fi
4780 fi
4781
4782 echo "
4783         mcs source:    $mcsdir
4784         C# Compiler:   $csc_compiler
4785
4786    Engine:
4787         Host:          $host
4788         Target:        $target
4789         GC:            $gc_msg 
4790         TLS:           $with_tls
4791         SIGALTSTACK:   $with_sigaltstack
4792         Engine:        $jit_status
4793         BigArrays:     $enable_big_arrays
4794         DTrace:        $enable_dtrace
4795         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
4796         Interpreter:   $enable_interpreter
4797
4798    Libraries:
4799         .NET 4.x:        $with_profile4_x
4800         Xamarin.Android: $with_monodroid
4801         Xamarin.iOS:     $with_monotouch
4802         Xamarin.WatchOS: $with_monotouch_watch
4803         Xamarin.TVOS:    $with_monotouch_tv
4804         Xamarin.Mac:     $with_xammac
4805         Windows AOT:     $with_winaot
4806         Orbis:           $with_orbis
4807         Unreal:          $with_unreal
4808         Test profiles:   AOT Full ($with_testing_aot_full), AOT Hybrid ($with_testing_aot_hybrid)
4809         JNI support:     $jdk_headers_found
4810         libgdiplus:      $libgdiplus_msg
4811         zlib:            $zlib_msg
4812         BTLS:            $enable_btls$btls_platform_string
4813         $disabled
4814 "
4815 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
4816    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
4817 fi