[runtime] Accomplish BITCODE build symbol sharing with only make (#3329)
[mono.git] / configure.ac
1 # Process this file with autoconf to produce a configure script.
2 #AC_PREREQ([2.62])
3
4 # when bumping version number below, keep it in sync with man/mono.1 too
5 AC_INIT(mono, [4.7.0],
6         [http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono])
7
8 AC_CONFIG_SRCDIR([README.md])
9 AC_CONFIG_MACRO_DIR([m4])
10 AC_CANONICAL_SYSTEM
11 AC_CANONICAL_HOST
12
13 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
14 # The extra brackets are to foil regex-based scans.
15 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
16
17 AM_INIT_AUTOMAKE([1.9 dist-bzip2 tar-ustar no-dist-gzip foreign subdir-objects]
18                  m4_esyscmd([case `automake --version | head -n 1` in    # parallel-tests is default in automake 1.13+, we need to explicitly enable it
19                              *1.11*|*1.12*) echo parallel-tests;;        # for 1.11 and 1.12 but not below as those versions don't recognize the flag
20                              esac]))                                     # TODO: remove this hack once we require automake 1.11+
21
22 AC_CONFIG_HEADERS([config.h])
23 AM_MAINTAINER_MODE
24
25 API_VER=2.0
26 AC_SUBST(API_VER)
27
28 AC_PROG_LN_S
29
30 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
31
32 case $host_os in
33 *cygwin* )
34                  echo "Run configure using ./configure --host=i686-pc-mingw32"
35                  exit 1
36 esac
37
38 # In case of cygwin, override LN_S, irrespective of what it determines.
39 # The build uses cygwin, but the actual runtime doesn't.
40 case $host_os in
41 *cygwin* ) LN_S='cp -p';;
42 esac
43
44 #
45 # libgc defaults
46 #
47 libgc_configure_args=
48
49 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
50 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
51 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
52 CFLAGS_FOR_LIBGC=$CFLAGS
53 CPPFLAGS_FOR_EGLIB=$CPPFLAGS
54 CFLAGS_FOR_EGLIB=$CFLAGS
55
56 # libgc uses some deprecated APIs
57 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
58
59 #
60 # These are the flags that need to be stored in the mono.pc file for 
61 # compiling code that will embed Mono
62 #
63 libmono_cflags=""
64 libmono_ldflags=""
65 AC_SUBST(libmono_cflags)
66 AC_SUBST(libmono_ldflags)
67
68 # Variable to have relocatable .pc files (lib, or lib64)
69 reloc_libdir=`basename ${libdir}`
70 AC_SUBST(reloc_libdir)
71
72 # Set to yes if Unix sockets cannot be created in an anonymous namespace
73 need_link_unlink=no
74
75 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
76 extra_runtime_ldflags=""
77
78 # Thread configuration inspired by sleepycat's db
79 AC_MSG_CHECKING([host platform characteristics])
80 libgc_threads=no
81 has_dtrace=no
82 parallel_mark=yes
83 ikvm_native=yes
84
85 host_win32=no
86 target_win32=no
87 platform_android=no
88 host_darwin=no
89 case "$host" in
90         *-mingw*|*-*-cygwin*)
91                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
92                 AC_DEFINE(PLATFORM_NO_SYMLINKS,1,[This platform does not support symlinks])
93                 host_win32=yes
94                 mono_cv_clang=no
95                 if test "x$cross_compiling" = "xno"; then
96                         if test "x$host" = "x$build" -a "x$host" = "x$target"; then
97                                 target_win32=yes
98                         fi
99                 else
100                         if test "x$host" = "x$target"; then
101                                 target_win32=yes
102                         fi
103                 fi
104                 HOST_CC="gcc"
105                 # Windows Vista or later is required
106                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -D_WIN32_WINNT=0x0600 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
107                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi"
108                 libmono_cflags="-mms-bitfields -mwindows"
109                 libmono_ldflags="-mms-bitfields -mwindows"
110                 libdl=
111                 libgc_threads=win32
112                 with_sigaltstack=no
113                 with_tls=pthread
114                 LN_S=cp
115                 # This forces libgc to use the DllMain based thread registration code on win32
116                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
117                 ;;
118         *-*-*netbsd*)
119                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
120                 libmono_cflags="-D_REENTRANT"
121                 LDFLAGS="$LDFLAGS -pthread"
122                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
123                 libmono_ldflags="-pthread"
124                 need_link_unlink=yes
125                 libdl="-ldl"
126                 libgc_threads=pthreads
127                 with_sigaltstack=no
128                 use_sigposix=yes
129                 ;;
130         *-*-kfreebsd*-gnu)
131                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
132                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
133                 libmono_ldflags="-lpthread -pthread"
134                 libdl="-ldl"
135                 libgc_threads=pthreads
136                 need_link_unlink=yes
137                 with_sigaltstack=no
138                 use_sigposix=yes
139                 ;;
140         *-*-*freebsd*)
141                 if test "x$PTHREAD_CFLAGS" = "x"; then
142                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
143                         libmono_cflags=
144                 else
145                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
146                         libmono_cflags="$PTHREAD_CFLAGS"
147                 fi
148                 if test "x$PTHREAD_LIBS" = "x"; then
149                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
150                         libmono_ldflags="-pthread"
151                 else
152                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
153                         libmono_ldflags="$PTHREAD_LIBS"
154                 fi
155                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
156                 need_link_unlink=yes
157                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
158                 libdl=
159                 libgc_threads=pthreads
160                 use_sigposix=yes
161                 has_dtrace=yes
162                 ;;
163         *-*-*openbsd*)
164                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DPLATFORM_BSD -D_REENTRANT -DUSE_MMAP"
165                 if test "x$disable_munmap" != "xyes"; then
166                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
167                 fi
168                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
169                 LDFLAGS="$LDFLAGS -pthread"
170                 need_link_unlink=yes
171                 AC_DEFINE(PTHREAD_POINTER_ID)
172                 libdl=
173                 libgc_threads=pthreads
174                 with_sigaltstack=no
175                 use_sigposix=yes
176                 ;;
177         *-*-linux-android*)
178                 platform_android=yes
179                 AC_DEFINE(PLATFORM_ANDROID,1,[Targeting the Android platform])
180                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
181
182                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
183                 if test "x$disable_munmap" != "xyes"; then
184                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
185                 fi
186                 libmono_cflags="-D_REENTRANT"
187                 libdl="-ldl"
188                 libgc_threads=pthreads
189                 use_sigposix=yes
190
191                 with_tls=pthread
192                 with_sigaltstack=no
193                 with_static_mono=no
194
195                 # Android doesn't support boehm, as it's missing <link.h>
196                 support_boehm=no
197                 with_gc=sgen
198
199                 # isinf(3) requires -lm; see isinf check below
200                 LDFLAGS="$LDFLAGS -lm"
201
202                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
203                 # PAGE_SIZE; breaks mono/io-layer/collection.c
204                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
205                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
206                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
207
208                 # The configure check can't detect this
209                 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
210
211                 # to bypass the underscore linker check, can't work when cross-compiling
212                 mono_cv_uscore=yes
213                 mono_cv_clang=no
214                 ;;
215         *-*-linux*)
216                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
217                 if test "x$disable_munmap" != "xyes"; then
218                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
219                 fi
220                 libmono_cflags="-D_REENTRANT"
221                 libdl="-ldl"
222                 libgc_threads=pthreads
223                 use_sigposix=yes
224                 if test "x$cross_compiling" != "xno"; then
225                         # to bypass the underscore linker check, not
226                         # available during cross-compilation
227                         mono_cv_uscore=no
228                 fi
229                 case "$host" in
230                 aarch64-*)
231                         support_boehm=no
232                         with_gc=sgen
233                         ;;
234                 powerpc*-*-linux*)
235                         # https://bugzilla.novell.com/show_bug.cgi?id=504411
236                         disable_munmap=yes
237                         ;;
238                 esac
239                 ;;
240         *-*-nacl*)
241                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
242                 if test "x$disable_munmap" != "xyes"; then
243                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
244                 fi
245                 libmono_cflags="-D_REENTRANT"
246                 libdl=
247                 libgc_threads=pthreads
248                 use_sigposix=yes
249                 ikvm_native=no
250                 AC_DEFINE(DISABLE_SOCKETS,1,[Disable sockets support])
251                 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
252                 ;;
253         *-*-hpux*)
254                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
255                 # +ESdbgasm only valid on bundled cc on RISC
256                 # silently ignored for ia64
257                 if test $GCC != "yes"; then
258                         CFLAGS="$CFLAGS +ESdbgasm"
259                         # Arrange for run-time dereferencing of null
260                         # pointers to produce a SIGSEGV signal.
261                         LDFLAGS="$LDFLAGS -z"
262                 fi
263                 CFLAGS="$CFLAGS +ESdbgasm"
264                 LDFLAGS="$LDFLAGS -z"
265                 libmono_cflags="-D_REENTRANT"
266                 libmono_ldflags="-lpthread"
267                 libgc_threads=pthreads
268                 need_link_unlink=yes
269                 use_sigposix=yes
270                 ;;
271         *-*-solaris*)
272                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
273                 need_link_unlink=yes
274                 libmono_cflags="-D_REENTRANT"
275                 libgc_threads=pthreads
276                 has_dtrace=yes
277                 use_sigposix=yes
278                 enable_solaris_tar_check=yes
279                 ;;
280         *-*-darwin*)
281                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
282                 host_darwin=yes
283                 target_mach=yes
284                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
285                 libmono_cflags="-D_THREAD_SAFE"
286                 need_link_unlink=yes
287                 AC_DEFINE(PTHREAD_POINTER_ID)
288                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
289                 libdl=
290                 libgc_threads=pthreads
291                 has_dtrace=yes
292                 if test "x$cross_compiling" = "xyes"; then
293                         has_broken_apple_cpp=yes
294                 fi
295                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
296                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
297                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
298                 case "$host" in
299                         dnl Snow Leopard and newer config.guess reports as this
300                         i*86-*-darwin*)
301                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
302                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
303                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
304                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
305                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
306                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
307                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
308                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
309                                 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_CPPFLAGS"
310                                 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
311                                 ;;
312                         x*64-*-darwin*)
313                                 ;;
314                         arm*-darwin*)
315                                 has_dtrace=no
316                                 ;;                      
317                 esac
318                 ;;
319         *-*-haiku*)
320                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
321                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
322                 libdl=
323                 LIBS="$LIBS -lnetwork"
324                 need_link_unlink=yes
325                 AC_DEFINE(PTHREAD_POINTER_ID)
326                 libgc_threads=pthreads
327                 use_sigposix=yes
328                 ;;
329         *)
330                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
331                 libdl="-ldl"
332                 ;;
333 esac
334 AC_MSG_RESULT(ok)
335
336 if test x$need_link_unlink = xyes; then
337    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
338 fi
339
340 if test x$host_win32 = xyes; then
341    AC_DEFINE(HOST_WIN32, 1, [Host Platform is Win32])
342 fi
343
344 if test x$target_win32 = xyes; then
345    AC_DEFINE(TARGET_WIN32, 1, [Target Platform is Win32])
346 fi
347
348 AC_SUBST(extra_runtime_ldflags)
349 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
350 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
351 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
352 AM_CONDITIONAL(PLATFORM_DARWIN, test x$host_darwin = xyes)
353 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
354 AM_CONDITIONAL(PLATFORM_ANDROID, test x$platform_android = xyes)
355
356 if test -z "$PLATFORM_DARWIN_TRUE"; then :
357 PLATFORM_AOT_SUFFIX=.dylib
358 fi
359
360 if test -z "$PLATFORM_LINUX_TRUE"; then :
361 PLATFORM_AOT_SUFFIX=.so
362 fi
363
364 AC_SUBST(PLATFORM_AOT_SUFFIX)
365
366 ## PLATFORM_AOT_SUFFIX not so simple for windows :-)
367
368 AC_CHECK_TOOL(CC, gcc, gcc)
369 AC_PROG_CC
370 AC_CHECK_TOOL(CXX, g++, g++)
371 AC_PROG_CXX
372 AM_PROG_AS
373 AC_PROG_INSTALL
374 AC_PROG_AWK
375 AM_PROG_CC_C_O
376 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
377 : ${CCAS='$(CC)'}
378 # Set ASFLAGS if not already set.
379 : ${CCASFLAGS='$(CFLAGS)'}
380 AC_SUBST(CCAS)
381 AC_SUBST(CCASFLAGS)
382
383 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
384 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
385 if test "x$CXX" = "xg++"; then
386         if test "x$GXX" != "xyes"; then
387                 # automake/libtool is so broken, it requires g++ even if the c++ sources
388                 # are inside automake conditionals
389                 AC_MSG_ERROR([You need to install g++])
390         fi
391 fi
392
393 dnl may require a specific autoconf version
394 dnl AC_PROG_CC_FOR_BUILD
395 dnl CC_FOR_BUILD not automatically detected
396 CC_FOR_BUILD=$CC
397 CFLAGS_FOR_BUILD=$CFLAGS
398 BUILD_EXEEXT=
399 if test "x$cross_compiling" = "xyes"; then
400         CC_FOR_BUILD=cc
401         CFLAGS_FOR_BUILD=
402         BUILD_EXEEXT=""
403 fi
404 AC_SUBST(CC_FOR_BUILD)
405 AC_SUBST(CFLAGS_FOR_BUILD)
406 AC_SUBST(HOST_CC)
407 AC_SUBST(BUILD_EXEEXT)
408
409 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
410 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
411
412 # Set STDC_HEADERS
413 AC_HEADER_STDC
414 AC_LIBTOOL_WIN32_DLL
415 # This causes monodis to not link correctly
416 #AC_DISABLE_FAST_INSTALL
417 AM_PROG_LIBTOOL
418 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
419 DOLT
420
421 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
422 AC_SUBST(export_ldflags)
423
424 # Test whenever ld supports -version-script
425 AC_PROG_LD
426 AC_PROG_LD_GNU
427
428 AM_ICONV()
429
430 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)
431 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)
432 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
433                   [], [], [#include <stddef.h>
434                   #include <sys/socket.h>
435                   #include <linux/socket.h>])
436
437 AC_CHECK_HEADERS(sys/user.h, [], [],
438 [
439 #ifdef HAVE_SYS_PARAM_H
440 # include <sys/param.h>
441 #endif
442 ])
443
444 AC_CHECK_HEADERS(linux/serial.h)
445
446 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
447 if test x$have_zlib = xyes; then
448    AC_TRY_COMPILE([#include <zlib.h>], [
449    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
450    return 0;
451    #else
452    #error No good zlib found
453    #endif
454    ],[
455         AC_MSG_RESULT(Using system zlib)
456         zlib_msg="system zlib"
457         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
458    ],[
459         AC_MSG_RESULT(Using embedded zlib)
460         have_zlib=no
461         zlib_msg="bundled zlib"
462    ])
463 fi
464
465 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
466 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
467
468 # for mono/metadata/debug-symfile.c
469 AC_CHECK_HEADERS(elf.h)
470
471 # for support
472 AC_CHECK_HEADERS(poll.h)
473 AC_CHECK_HEADERS(sys/poll.h)
474 AC_CHECK_HEADERS(sys/wait.h)
475 AC_CHECK_HEADERS(grp.h)
476 AC_CHECK_HEADERS(syslog.h)
477
478 # for mono/dis
479 AC_CHECK_HEADERS(wchar.h)
480 AC_CHECK_HEADERS(ieeefp.h)
481 AC_MSG_CHECKING(for isinf)
482 AC_TRY_LINK([#include <math.h>], [
483         int f = isinf (1.0);
484 ], [
485         AC_MSG_RESULT(yes)
486         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
487 ], [
488         # We'll have to use signals
489         AC_MSG_RESULT(no)
490 ])
491 # mingw
492 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
493         AC_TRY_LINK([#include <math.h>], 
494         [ _finite(0.0); ], 
495         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
496         AC_MSG_RESULT(no)))
497
498 # for Linux statfs support
499 AC_CHECK_HEADERS(linux/magic.h)
500
501 # not 64 bit clean in cross-compile
502 AC_CHECK_SIZEOF(void *, 4)
503
504 AC_CACHE_CHECK([for clang],
505         mono_cv_clang,[
506         AC_TRY_COMPILE([], [
507                 #ifdef __clang__
508                 #else
509                 #error "FAILED"
510                 #endif
511                 return 0;
512         ],
513         [mono_cv_clang=yes],
514         [mono_cv_clang=no],
515         [])
516 ])
517
518 AC_ARG_ENABLE(visibility-hidden,
519 [  --disable-visibility-hidden    disable usage of -fvisiblity=hidden],
520    disable_visibility_hidden=yes, disable_visibility_hidden=no)
521
522 WARN=''
523 if test x"$GCC" = xyes; then
524         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes'
525
526                 # We require C99 with some GNU extensions, e.g. `linux` macro
527                 CFLAGS="$CFLAGS -std=gnu99"
528
529                 # The runtime code does not respect ANSI C strict aliasing rules
530                 CFLAGS="$CFLAGS -fno-strict-aliasing"
531
532                 # We rely on signed overflow to behave
533                 CFLAGS="$CFLAGS -fwrapv"
534
535                 CFLAGS="$CFLAGS -DMONO_DLL_EXPORT"
536                 if test x"$disable_visibility_hidden" = xno; then
537                    # Don't export any symbols by default
538                    SHARED_CFLAGS="-fvisibility=hidden"
539                    CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB -fvisibility=hidden"
540                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
541                 fi
542
543                 ORIG_CFLAGS=$CFLAGS
544                 # Check for the normal version, since gcc ignores unknown -Wno options
545                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
546                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
547                 AC_TRY_COMPILE([],[
548                                 return 0;
549                 ], [
550                    AC_MSG_RESULT(yes)
551                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
552                 ], [
553                    AC_MSG_RESULT(no)
554                    CFLAGS=$ORIG_CFLAGS
555                 ])
556
557                 if test "x$mono_cv_clang" = "xyes"; then
558                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
559                    WARN="$WARN -Qunused-arguments"
560                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign -Wno-return-stack-address -Wno-constant-logical-operand"
561                 fi
562 else
563         # The Sun Forte compiler complains about inline functions that access static variables
564         # so disable all inlining.
565         case "$host" in
566         *-*-solaris*)
567                 CFLAGS="$CFLAGS -Dinline="
568                 ;;
569         esac
570 fi
571 CFLAGS="$CFLAGS -g $WARN"
572 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
573 CPPFLAGS="$CPPFLAGS -g $WARN"
574
575 # Where's the 'mcs' source tree?
576 if test -d $srcdir/mcs; then
577   mcsdir=mcs
578 else
579   mcsdir=../mcs
580 fi
581
582 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
583         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
584                 mcsdir=$with_mcs_path
585         fi
586 )
587
588 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
589
590 #
591 # A sanity check to catch cases where the package was unpacked
592 # with an ancient tar program (Solaris)
593 #
594 AC_ARG_ENABLE(solaris-tar-check,
595 [  --disable-solaris-tar-check    disable solaris tar check],
596    do_solaris_tar_check=no, do_solaris_tar_check=yes)
597
598 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
599         AC_MSG_CHECKING(integrity of package)
600         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
601         then
602                 AC_MSG_RESULT(ok)
603         else
604                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
605                 AC_MSG_ERROR([$errorm])
606         fi
607 fi
608
609 if test "x$with_mcs_path" != "x"; then
610 mcs_topdir=$(cd "$mcsdir" && pwd)
611 mcs_topdir_from_srcdir=$mcs_topdir
612 else
613 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
614 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
615 fi
616
617 # Convert mcs_topdir* paths to Windows syntax.
618 if test x$cross_compiling$host_win32 = xnoyes; then
619   mcs_topdir=$(cygpath -m $mcs_topdir)
620   case $mcs_topdir_from_srcdir in
621     /cygdrive/*)
622         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
623         ;;
624   esac
625 fi
626
627 AC_SUBST([mcs_topdir])
628 AC_SUBST([mcs_topdir_from_srcdir])
629
630 # gettext: prepare the translation directories. 
631 # we do not configure the full gettext, as we consume it dynamically from C#
632 AM_PO_SUBDIRS
633
634 if test "x$USE_NLS" = "xyes"; then
635    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
636
637    if test "x$HAVE_MSGFMT" = "xno"; then
638           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
639    fi
640 fi
641
642 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
643
644 pkg_config_path=
645 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
646         if test x$with_crosspkgdir = "x"; then
647                 if test -s $PKG_CONFIG_PATH; then
648                         pkg_config_path=$PKG_CONFIG_PATH
649                 fi
650         else
651                 pkg_config_path=$with_crosspkgdir
652                 PKG_CONFIG_PATH=$pkg_config_path
653                 export PKG_CONFIG_PATH
654         fi
655 )
656
657 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
658 if test x$werror_flag = xyes; then
659         WERROR_CFLAGS="-Werror"
660 fi
661 AC_SUBST([WERROR_CFLAGS])
662 AC_SUBST([SHARED_CFLAGS])
663
664 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
665 AC_CONFIG_SUBDIRS(eglib)
666
667 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
668 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
669   
670 AC_SUBST(GLIB_CFLAGS)
671 AC_SUBST(GLIB_LIBS)
672
673 # Enable support for fast thread-local storage
674 # Some systems have broken support, so we allow to disable it.
675 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
676
677 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
678 # This does not work on some platforms (bug #55253)
679 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
680
681 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
682 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
683 # Same as --with-shared_mono=no
684 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
685
686 if test "x$enable_static" = "xno"; then
687    with_static_mono=no
688 fi
689
690 if test "x$enable_shared" = "xno"; then
691    with_shared_mono=no
692 fi
693
694 if test "x$enable_libraries" = "xno"; then
695    with_shared_mono=no
696 fi
697
698 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
699
700 case $host in
701 *nacl* ) with_shared_mono=yes;;
702 esac
703
704 if test "x$host_win32" = "xyes"; then
705    # Boehm GC requires the runtime to be in its own dll
706    with_static_mono=no
707 fi
708
709 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
710 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
711 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
712
713 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
714 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
715         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
716         ORIG_CFLAGS=$CFLAGS
717         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
718         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
719         AC_TRY_COMPILE([], [
720                 return 0;
721         ], [
722            AC_MSG_RESULT(yes)
723            # Pass it to libgc as well
724            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
725         ], [
726            AC_MSG_RESULT(no)
727            CFLAGS=$ORIG_CFLAGS
728         ])
729 fi
730
731 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
732
733 if test x$enable_small_config = xyes; then
734         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
735         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
736 fi
737
738 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=$enableval, enable_system_aot=default)
739
740 DISABLED_FEATURES=none
741
742 #
743 # Set the build profiles and options before things which use them
744 #
745
746 AC_ARG_WITH(profile4_x,      [  --with-profile4=yes,no          If you want to install the 4.x FX (defaults to yes)],                 [], [with_profile4_x=default])
747 AC_ARG_WITH(monodroid,       [  --with-monodroid=yes,no         If you want to build the MonoDroid assemblies (defaults to no)],      [], [with_monodroid=default])
748 AC_ARG_WITH(monotouch,       [  --with-monotouch=yes,no         If you want to build the Xamarin.iOS assemblies (defaults to no)],    [], [with_monotouch=default])
749 AC_ARG_WITH(monotouch_watch, [  --with-monotouch_watch=yes,no   If you want to build the Xamarin.WatchOS assemblies (defaults to no)],[], [with_monotouch_watch=default])
750 AC_ARG_WITH(monotouch_tv,    [  --with-monotouch_tv=yes,no      If you want to build the Xamarin.TVOS assemblies (defaults to no)],   [], [with_monotouch_tv=default])
751 AC_ARG_WITH(bitcode,         [  --with-bitcode=yes,no           If bitcode is enabled (defaults to no)],                              [], [with_bitcode=default])
752 AC_ARG_WITH(xammac,          [  --with-xammac=yes,no            If you want to build the Xamarin.Mac assemblies (defaults to no)],    [], [with_xammac=default])
753 AC_ARG_WITH(mobile_static,   [  --with-mobile_static=yes,no     If you want to build the mobile_static assemblies (defaults to no)],  [], [with_mobile_static=default])
754
755 AC_ARG_WITH(runtime_preset, [  --with-runtime_preset=net_4_x,all,mobile_static,bitcode_mobile_static   Which default profile to build (defaults to net_4_x)],  [], [with_runtime_preset=net_4_x])
756
757 dnl
758 dnl Profile defaults
759 dnl
760 TEST_PROFILE=default
761 enable_llvm_default=no
762
763 INVARIANT_AOT_OPTIONS=nimt-trampolines=900,ntrampolines=8000,nrgctx-fetch-trampolines=256,ngsharedvt-trampolines=2800
764
765 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
766    DISABLE_MCS_DOCS_default=yes
767    with_profile4_x_default=no
768    with_monodroid_default=no
769    with_monotouch_default=no
770    with_monotouch_watch_default=no
771    with_monotouch_tv_default=no
772    with_xammac_default=no
773    with_mobile_static_default=no
774    with_bitcode_default=no
775    with_cooperative_gc_default=no
776 elif test x$with_runtime_preset = xnet_4_x; then
777    with_cooperative_gc_default=no
778    with_profile4_x_default=yes
779    with_monodroid_default=no
780    with_monotouch_default=no
781    with_monotouch_watch_default=no
782    with_monotouch_tv_default=no
783    with_xammac_default=no
784    with_mobile_static_default=no
785    with_bitcode_default=no
786 elif test x$with_runtime_preset = xall; then
787    with_cooperative_gc_default=no
788    with_profile4_x_default=yes
789    with_monodroid_default=yes
790    with_monotouch_default=yes
791    with_monotouch_watch_default=yes
792    with_monotouch_tv_default=yes
793    with_xammac_default=yes
794    with_mobile_static_default=no
795    with_bitcode_default=no
796 elif test x$with_runtime_preset = xmobile_static; then
797    DISABLE_MCS_DOCS_default=yes
798    with_cooperative_gc_default=no
799    with_profile4_x_default=no
800    with_monodroid_default=no
801    with_monotouch_default=no
802    with_monotouch_watch_default=no
803    with_monotouch_tv_default=no
804    with_xammac_default=no
805    with_mobile_static_default=yes
806    with_bitcode_default=no
807    with_cooperative_gc_default=no
808    TEST_PROFILE=mobile_static 
809
810    mono_feature_disable_com='yes'
811    mono_feature_disable_remoting='yes'
812    mono_feature_disable_reflection_emit_save='yes'
813    mono_feature_disable_reflection_emit='yes'
814    mono_feature_disable_appdomains='yes'
815
816    AOT_BUILD_FLAGS="-O=gsharedvt --aot=full,$INVARIANT_AOT_OPTIONS"
817    AOT_RUN_FLAGS="--full-aot"
818 elif test x$with_runtime_preset = xbitcode_mobile_static; then
819    DISABLE_MCS_DOCS_default=yes
820    with_profile4_x_default=no
821    with_monodroid_default=no
822    with_monotouch_default=no
823    with_monotouch_watch_default=no
824    with_monotouch_tv_default=no
825    with_xammac_default=no
826    with_mobile_static_default=yes
827    with_bitcode_default=yes
828    with_cooperative_gc_default=yes
829    TEST_PROFILE=mobile_static 
830    enable_llvm_default=yes
831
832    mono_feature_disable_com='yes'
833    mono_feature_disable_remoting='yes'
834    mono_feature_disable_reflection_emit_save='yes'
835    mono_feature_disable_reflection_emit='yes'
836    mono_feature_disable_appdomains='yes'
837
838    AOT_BUILD_FLAGS="--aot=llvmonly,$INVARIANT_AOT_OPTIONS"
839    AOT_RUN_FLAGS="--llvmonly"
840 else
841    with_profile4_x_default=yes
842    with_monodroid_default=no
843    with_monotouch_default=no
844    with_monotouch_watch_default=no
845    with_monotouch_tv_default=no
846    with_bitcode_default=no
847    with_xammac_default=no
848    with_mobile_static_default=no
849    with_cooperative_gc_default=no
850 fi
851
852 if test "x$AOT_BUILD_FLAGS" != "x"; then :
853    AC_SUBST(AOT_BUILD_FLAGS)
854    AC_SUBST(AOT_RUN_FLAGS)
855 fi
856
857 AC_SUBST(TEST_PROFILE)
858
859 if test "x$with_profile4_x" = "xdefault"; then
860    with_profile4_x=$with_profile4_x_default
861 fi
862 if test "x$with_monodroid" = "xdefault"; then
863    with_monodroid=$with_monodroid_default
864 fi
865 if test "x$with_monotouch" = "xdefault"; then
866    with_monotouch=$with_monotouch_default
867 fi
868 if test "x$with_monotouch_watch" = "xdefault"; then
869    with_monotouch_watch=$with_monotouch_watch_default
870 fi
871 if test "x$with_monotouch_tv" = "xdefault"; then
872    with_monotouch_tv=$with_monotouch_tv_default
873 fi
874 if test "x$with_bitcode" = "xdefault"; then
875    with_bitcode=$with_bitcode_default
876 fi
877 if test "x$with_xammac" = "xdefault"; then
878    with_xammac=$with_xammac_default
879 fi
880 if test "x$with_mobile_static" = "xdefault"; then
881    with_mobile_static=$with_mobile_static_default
882 fi
883
884 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = "xyes"])
885 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
886 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
887 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
888 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
889 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
890 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
891 AM_CONDITIONAL(INSTALL_MOBILE_STATIC, [test "x$with_mobile_static" != "xno"])
892
893 AC_SUBST(INSTALL_MOBILE_STATIC)
894
895 default_profile=net_4_x
896 if test -z "$INSTALL_MONODROID_TRUE"; then :
897    default_profile=monodroid
898 fi
899 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
900    default_profile=monotouch
901 fi
902 if test -z "$INSTALL_XAMMAC_TRUE"; then :
903    default_profile=xammac
904 fi
905 if test -z "$INSTALL_MOBILE_STATIC_TRUE"; then :
906    default_profile=mobile_static
907 fi
908 if test -z "$INSTALL_4_x_TRUE"; then :
909    default_profile=net_4_x
910 fi
911 DEFAULT_PROFILE=$default_profile
912 AC_SUBST(DEFAULT_PROFILE)
913
914 #
915 # End build profile configuration
916 #
917
918 if test x$USE_NLS = xprofile_default; then
919
920 if test x$host_darwin = xyes; then
921 # We make the default value for USE_NLS
922 # "no" on OSX because it isn't available on most
923 # default OSX installs. The most common configurations will
924 # all disable it, so this saves us typing.
925   USE_NLS=no
926   AC_SUBST([USE_NLS])
927   AC_MSG_RESULT([$USE_NLS])
928 else
929   USE_NLS=yes
930   AC_SUBST([USE_NLS])
931   AC_MSG_RESULT([$USE_NLS])
932 fi
933
934 fi
935
936 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
937      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
938      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
939          security, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
940 [
941         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
942                 eval "mono_feature_disable_$feature='yes'"
943         done
944         DISABLED_FEATURES=$enable_minimal
945         disabled="Disabled:      $enable_minimal"
946 ],[])
947
948 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
949
950 if test "x$mono_feature_disable_aot" = "xyes"; then
951         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
952         enable_system_aot=no
953         AC_MSG_NOTICE([Disabled AOT compiler])
954 fi
955
956 if test "x$mono_feature_disable_profiler" = "xyes"; then
957         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
958         AC_MSG_NOTICE([Disabled support for the profiler])
959 fi
960 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
961
962 if test "x$mono_feature_disable_decimal" = "xyes"; then
963         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
964         AC_MSG_NOTICE([Disabled support for decimal])
965 fi
966
967 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
968         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
969         AC_MSG_NOTICE([Disabled support for P/Invoke])
970 fi
971
972 if test "x$mono_feature_disable_debug" = "xyes"; then
973         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
974         AC_MSG_NOTICE([Disabled support for runtime debugging])
975 fi
976
977 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
978         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
979         mono_feature_disable_reflection_emit_save=yes
980         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
981 fi
982
983 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
984         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
985         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
986 fi
987
988 if test "x$mono_feature_disable_large_code" = "xyes"; then
989         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
990         AC_MSG_NOTICE([Disabled support for large assemblies])
991 fi
992
993 if test "x$mono_feature_disable_logging" = "xyes"; then
994         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
995         AC_MSG_NOTICE([Disabled support for logging])
996 fi
997
998 if test "x$mono_feature_disable_com" = "xyes"; then
999         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
1000         AC_MSG_NOTICE([Disabled COM support])
1001 fi
1002
1003 if test "x$mono_feature_disable_ssa" = "xyes"; then
1004         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
1005         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
1006 fi
1007
1008 if test "x$mono_feature_disable_generics" = "xyes"; then
1009         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
1010         AC_MSG_NOTICE([Disabled Generics Support])
1011 fi
1012
1013 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
1014         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
1015         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
1016 fi
1017
1018 if test "x$mono_feature_disable_portability" = "xyes"; then
1019         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
1020         AC_MSG_NOTICE([Disabled IO Portability layer])
1021 fi
1022
1023 if test "x$mono_feature_disable_attach" = "xyes"; then
1024         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
1025         AC_MSG_NOTICE([Disabled agent attach])
1026 fi
1027
1028 if test "x$mono_feature_disable_full_messages" = "xyes"; then
1029         AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
1030         AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
1031 fi
1032
1033 if test "x$mono_feature_disable_verifier" = "xyes"; then
1034         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
1035         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
1036 fi
1037
1038 if test "x$mono_feature_disable_jit" = "xyes"; then
1039         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
1040         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
1041 fi
1042
1043 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
1044
1045 if test "x$mono_feature_disable_simd" = "xyes"; then
1046         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
1047         AC_MSG_NOTICE([Disabled SIMD support])
1048 fi
1049
1050 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
1051         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
1052         AC_MSG_NOTICE([Disabled Soft Debugger.])
1053 fi
1054
1055 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
1056         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
1057         AC_MSG_NOTICE([Disabled Performance Counters.])
1058 fi
1059 if test "x$mono_feature_disable_normalization" = "xyes"; then
1060         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
1061         AC_MSG_NOTICE([Disabled String normalization support.])
1062 fi
1063
1064 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
1065         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
1066         AC_MSG_NOTICE([Disabled Assembly remapping.])
1067 fi
1068
1069 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
1070         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
1071         AC_MSG_NOTICE([Disabled Shared perfcounters.])
1072 fi
1073
1074 if test "x$mono_feature_disable_appdomains" = "xyes"; then
1075         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
1076         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
1077 fi
1078
1079 if test "x$mono_feature_disable_remoting" = "xyes"; then
1080         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
1081         AC_MSG_NOTICE([Disabled remoting])
1082 fi
1083
1084 if test "x$mono_feature_disable_security" = "xyes"; then
1085         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
1086         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
1087 fi
1088
1089 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
1090         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
1091         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
1092 fi
1093
1094 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
1095         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
1096         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
1097 fi
1098
1099 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
1100         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
1101         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
1102 fi
1103
1104 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
1105         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
1106         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
1107 fi
1108
1109 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
1110         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
1111         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
1112 fi
1113
1114 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
1115 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
1116
1117 has_extension_module=no
1118 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
1119 [
1120         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
1121                 if test x$extension = xdefault ; then
1122                         has_extension_module=yes;
1123                 fi
1124         done
1125         if test x$enable_extension_module = xyes; then
1126                 has_extension_module=yes;
1127         fi
1128 ], [])
1129
1130 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
1131
1132 if test x$has_extension_module != xno ; then
1133         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
1134         AC_MSG_NOTICE([Enabling mono extension module.])
1135 fi
1136
1137 # Deprecated
1138 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
1139
1140 AC_MSG_CHECKING(for visibility __attribute__)
1141 AC_COMPILE_IFELSE([
1142         AC_LANG_SOURCE([[
1143                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
1144                 int main () { doit (); return 0; }
1145         ]])
1146 ], [
1147    have_visibility_hidden=yes
1148    AC_MSG_RESULT(yes)
1149 ], [
1150    have_visibility_hidden=no
1151    AC_MSG_RESULT(no)
1152 ])
1153
1154 AC_MSG_CHECKING(for deprecated __attribute__)
1155 AC_TRY_COMPILE([
1156      int doit (void) __attribute__ ((deprecated));
1157      int doit (void) { return 0; }
1158 ], [
1159         return 0;
1160 ], [
1161    have_deprecated=yes
1162    AC_MSG_RESULT(yes)
1163 ], [
1164    have_deprecated=no
1165    AC_MSG_RESULT(no)
1166 ])
1167
1168 dnl
1169 dnl Boehm GC configuration
1170 dnl
1171
1172 AC_ARG_WITH(libgc,   [  --with-gc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=included])
1173
1174 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1175 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1176
1177 if test "x$support_boehm" = "xyes"; then
1178
1179         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1180         if test x$enable_parallel_mark = xyes; then
1181                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1182         fi
1183
1184         gc_msg=""
1185         LIBGC_CPPFLAGS=
1186         LIBGC_LIBS=
1187         LIBGC_STATIC_LIBS=
1188         libgc_dir=
1189         case "x$libgc" in
1190                 xincluded)
1191                         if test "x$support_boehm" = "xyes"; then
1192                                 libgc_dir=libgc
1193                         fi
1194
1195                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1196                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1197                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1198
1199                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1200
1201                         if test x$target_win32 = xyes; then
1202                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1203                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1204                         fi
1205
1206                         gc_msg="Included Boehm GC with typed GC"
1207                         if test x$enable_parallel_mark = xyes; then
1208                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1209                                 gc_msg="$gc_msg and parallel mark"
1210                         else
1211                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1212                         fi
1213                         ;;
1214
1215                 xboehm|xbohem|xyes)
1216                         AC_MSG_WARN("External Boehm is no longer supported")
1217                         ;;
1218
1219                 xsgen)
1220                         AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1221                         ;;
1222
1223                 xnone)
1224                         AC_MSG_WARN("Compiling mono without GC.")
1225                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1226                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1227                         gc_msg="none"
1228                         ;;
1229                 *)
1230                         AC_MSG_ERROR([Invalid argument to --with-gc.])
1231                         ;;
1232         esac
1233
1234         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1235         if test "x$large_heap" = "xyes"; then
1236            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1237         fi
1238
1239         AC_SUBST(LIBGC_CPPFLAGS)
1240         AC_SUBST(LIBGC_LIBS)
1241         AC_SUBST(LIBGC_STATIC_LIBS)
1242         AC_SUBST(libgc_dir)
1243         AC_SUBST(BOEHM_DEFINES)
1244
1245 fi
1246
1247 dnl
1248 dnl End of Boehm GC Configuration
1249 dnl
1250
1251 dnl *************************************
1252 dnl *** Checks for zero length arrays ***
1253 dnl *************************************
1254 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1255 AC_TRY_COMPILE([
1256         struct s {
1257                 int  length;
1258                 char data [0];
1259         };
1260 ], [], [
1261         AC_MSG_RESULT(yes)
1262         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1263 ], [
1264         AC_MSG_RESULT(no)
1265         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1266 ])
1267
1268 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1269
1270 dnl ***********************************
1271 dnl *** Checks for signals
1272 dnl ***********************************
1273 AC_CHECK_HEADERS(signal.h)
1274 AC_CHECK_FUNCS(sigaction)
1275 AC_CHECK_FUNCS(kill)
1276 AC_CHECK_FUNCS(signal)
1277
1278 # signal() is declared inline in Android headers
1279 # so we need to workaround it by overriding the check.
1280 if test x$platform_android = xyes; then
1281         AC_DEFINE(HAVE_SIGNAL,1)
1282 fi
1283
1284 if test x$host_win32 = xno; then
1285
1286         dnl hires monotonic clock support
1287         AC_SEARCH_LIBS(clock_gettime, rt)
1288         AC_CHECK_FUNCS(clock_nanosleep)
1289
1290         dnl dynamic loader support
1291         AC_CHECK_FUNC(dlopen, DL_LIB="",
1292                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1293         )
1294         if test x$dl_support = xno; then
1295                 AC_MSG_WARN([No dynamic loading support available])
1296         else
1297                 LIBS="$LIBS $DL_LIB"
1298                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1299                 dnl from glib's configure.ac
1300                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1301                         mono_cv_uscore,[
1302                         AC_TRY_RUN([#include <dlfcn.h>
1303                         int mono_underscore_test (void) { return 42; }
1304                         int main() {
1305                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1306                           handle = dlopen ((void*)0, 0);
1307                           if (handle) {
1308                             f1 = dlsym (handle, "mono_underscore_test");
1309                             f2 = dlsym (handle, "_mono_underscore_test");
1310                           } return (!f2 || f1);
1311                         }],
1312                                 [mono_cv_uscore=yes],
1313                                 [mono_cv_uscore=no],
1314                         [])
1315                 ])
1316                 if test "x$mono_cv_uscore" = "xyes"; then
1317                         MONO_DL_NEED_USCORE=1
1318                 else
1319                         MONO_DL_NEED_USCORE=0
1320                 fi
1321                 AC_SUBST(MONO_DL_NEED_USCORE)
1322                 AC_CHECK_FUNC(dlerror)
1323         fi
1324
1325         dnl ******************************************************************
1326         dnl *** Checks for the IKVM JNI interface library                  ***
1327         dnl ******************************************************************
1328         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])
1329
1330         ikvm_native_dir=
1331         if test x$with_ikvm_native = xyes; then
1332                 ikvm_native_dir=ikvm-native
1333                 jdk_headers_found="IKVM Native"
1334         fi
1335
1336         AC_SUBST(ikvm_native_dir)
1337
1338         AC_CHECK_HEADERS(execinfo.h)
1339
1340         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1341
1342         AC_CHECK_FUNCS(getgrgid_r)
1343         AC_CHECK_FUNCS(getgrnam_r)
1344         AC_CHECK_FUNCS(getpwnam_r)
1345         AC_CHECK_FUNCS(getpwuid_r)
1346         AC_CHECK_FUNCS(getresuid)
1347         AC_CHECK_FUNCS(setresuid)
1348         AC_CHECK_FUNCS(kqueue)
1349         AC_CHECK_FUNCS(backtrace_symbols)
1350         AC_CHECK_FUNCS(mkstemp)
1351         AC_CHECK_FUNCS(mmap)
1352         AC_CHECK_FUNCS(madvise)
1353         AC_CHECK_FUNCS(getrusage)
1354         AC_CHECK_FUNCS(getpriority)
1355         AC_CHECK_FUNCS(setpriority)
1356         AC_CHECK_FUNCS(dl_iterate_phdr)
1357         AC_CHECK_FUNCS(dladdr)
1358         AC_CHECK_FUNCS(sysconf)
1359         AC_CHECK_FUNCS(getrlimit)
1360         AC_CHECK_FUNCS(prctl)
1361
1362         AC_CHECK_FUNCS(sched_getaffinity)
1363         AC_CHECK_FUNCS(sched_setaffinity)
1364         AC_CHECK_FUNCS(sched_getcpu)
1365
1366         dnl ****************************************************************
1367         dnl *** Check for sched_setaffinity from glibc versions before   ***
1368         dnl *** 2.3.4. The older versions of the function only take 2    ***
1369         dnl *** parameters, not 3.                                       ***
1370         dnl ***                                                          ***
1371         dnl *** Because the interface change was not made in a minor     ***
1372         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1373         dnl *** won't always indicate the interface sched_affinity has.  ***
1374         dnl ****************************************************************
1375         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1376         AC_TRY_COMPILE([#include <sched.h>], [
1377             int mask = 1; 
1378             sched_setaffinity(0, &mask);
1379                         return 0;
1380         ], [
1381                 # Yes, we have it...
1382                 AC_MSG_RESULT(yes)
1383                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1384         ], [
1385                 # We have the new, three-parameter version
1386                 AC_MSG_RESULT(no)
1387         ])
1388
1389
1390         dnl ******************************************************************
1391         dnl *** Check for large file support                               ***
1392         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1393         dnl ******************************************************************
1394         
1395         # Check that off_t can represent 2**63 - 1 correctly, working around
1396         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1397         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1398         large_offt=no
1399         AC_DEFUN([LARGE_FILES], [
1400                 large_CPPFLAGS=$CPPFLAGS
1401                 CPPFLAGS="$CPPFLAGS $1"
1402                 AC_TRY_COMPILE([
1403                         #include <sys/types.h>
1404                         #include <limits.h>
1405                 ], [
1406                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1407                         #define COMPILE_TIME_ASSERT(pred) \
1408                                 switch(0){case 0:case pred:;}
1409                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1410                 ], [
1411                         AC_MSG_RESULT(ok)
1412                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1413                         large_CPPFLAGS="$large_CPPFLAGS $1"
1414                         large_offt=yes
1415                 ], [
1416                         AC_MSG_RESULT(no)
1417                 ])
1418                 CPPFLAGS=$large_CPPFLAGS
1419         ])
1420
1421         AC_MSG_CHECKING(if off_t is 64 bits wide)
1422         LARGE_FILES("")
1423         if test $large_offt = no; then
1424                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1425                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1426         fi
1427         if test $large_offt = no; then
1428                 AC_MSG_WARN([No 64 bit file size support available])
1429         fi
1430         
1431         dnl *****************************
1432         dnl *** Checks for libsocket  ***
1433         dnl *****************************
1434         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1435
1436         case "$host" in
1437                 *-*-*freebsd*)
1438                         dnl *****************************
1439                         dnl *** Checks for libinotify ***
1440                         dnl *****************************
1441                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1442         esac
1443
1444         dnl *******************************
1445         dnl *** Checks for MSG_NOSIGNAL ***
1446         dnl *******************************
1447         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1448         AC_TRY_COMPILE([#include <sys/socket.h>], [
1449                 int f = MSG_NOSIGNAL;
1450         ], [
1451                 # Yes, we have it...
1452                 AC_MSG_RESULT(yes)
1453                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1454         ], [
1455                 # We'll have to use signals
1456                 AC_MSG_RESULT(no)
1457         ])
1458
1459         dnl *****************************
1460         dnl *** Checks for IPPROTO_IP ***
1461         dnl *****************************
1462         AC_MSG_CHECKING(for IPPROTO_IP)
1463         AC_TRY_COMPILE([#include <netinet/in.h>], [
1464                 int level = IPPROTO_IP;
1465         ], [
1466                 # Yes, we have it...
1467                 AC_MSG_RESULT(yes)
1468                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1469         ], [
1470                 # We'll have to use getprotobyname
1471                 AC_MSG_RESULT(no)
1472         ])
1473
1474         dnl *******************************
1475         dnl *** Checks for IPPROTO_IPV6 ***
1476         dnl *******************************
1477         AC_MSG_CHECKING(for IPPROTO_IPV6)
1478         AC_TRY_COMPILE([#include <netinet/in.h>], [
1479                 int level = IPPROTO_IPV6;
1480         ], [
1481                 # Yes, we have it...
1482                 AC_MSG_RESULT(yes)
1483                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1484         ], [
1485                 # We'll have to use getprotobyname
1486                 AC_MSG_RESULT(no)
1487         ])
1488
1489         dnl ******************************
1490         dnl *** Checks for IPPROTO_TCP ***
1491         dnl ******************************
1492         AC_MSG_CHECKING(for IPPROTO_TCP)
1493         AC_TRY_COMPILE([#include <netinet/in.h>], [
1494                 int level = IPPROTO_TCP;
1495         ], [
1496                 # Yes, we have it...
1497                 AC_MSG_RESULT(yes)
1498                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1499         ], [
1500                 # We'll have to use getprotobyname
1501                 AC_MSG_RESULT(no)
1502         ])
1503
1504         dnl *****************************
1505         dnl *** Checks for SOL_IP     ***
1506         dnl *****************************
1507         AC_MSG_CHECKING(for SOL_IP)
1508         AC_TRY_COMPILE([#include <netdb.h>], [
1509                 int level = SOL_IP;
1510         ], [
1511                 # Yes, we have it...
1512                 AC_MSG_RESULT(yes)
1513                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1514         ], [
1515                 # We'll have to use getprotobyname
1516                 AC_MSG_RESULT(no)
1517         ])
1518
1519         dnl *****************************
1520         dnl *** Checks for SOL_IPV6     ***
1521         dnl *****************************
1522         AC_MSG_CHECKING(for SOL_IPV6)
1523         AC_TRY_COMPILE([#include <netdb.h>], [
1524                 int level = SOL_IPV6;
1525         ], [
1526                 # Yes, we have it...
1527                 AC_MSG_RESULT(yes)
1528                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1529         ], [
1530                 # We'll have to use getprotobyname
1531                 AC_MSG_RESULT(no)
1532         ])
1533
1534         dnl *****************************
1535         dnl *** Checks for SOL_TCP    ***
1536         dnl *****************************
1537         AC_MSG_CHECKING(for SOL_TCP)
1538         AC_TRY_COMPILE([#include <netdb.h>], [
1539                 int level = SOL_TCP;
1540         ], [
1541                 # Yes, we have it...
1542                 AC_MSG_RESULT(yes)
1543                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1544         ], [
1545                 # We'll have to use getprotobyname
1546                 AC_MSG_RESULT(no)
1547         ])
1548
1549         dnl *****************************
1550         dnl *** Checks for IP_PKTINFO ***
1551         dnl *****************************
1552         AC_MSG_CHECKING(for IP_PKTINFO)
1553         AC_TRY_COMPILE([#include <linux/in.h>], [
1554                 int level = IP_PKTINFO;
1555         ], [
1556                 # Yes, we have it...
1557                 AC_MSG_RESULT(yes)
1558                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1559         ], [
1560                 AC_MSG_RESULT(no)
1561         ])
1562
1563         dnl *****************************
1564         dnl *** Checks for IPV6_PKTINFO ***
1565         dnl *****************************
1566         AC_MSG_CHECKING(for IPV6_PKTINFO)
1567         AC_TRY_COMPILE([#include <netdb.h>], [
1568                 int level = IPV6_PKTINFO;
1569         ], [
1570                 # Yes, we have it...
1571                 AC_MSG_RESULT(yes)
1572                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1573         ], [
1574                 AC_MSG_RESULT(no)
1575         ])
1576
1577         dnl **********************************
1578         dnl *** Checks for IP_DONTFRAG     ***
1579         dnl **********************************
1580         AC_MSG_CHECKING(for IP_DONTFRAG)
1581         AC_TRY_COMPILE([#include <netinet/in.h>], [
1582                 int level = IP_DONTFRAG;
1583         ], [
1584                 # Yes, we have it...
1585                 AC_MSG_RESULT(yes)
1586                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1587         ], [
1588                 AC_MSG_RESULT(no)
1589         ])
1590
1591         dnl **********************************
1592         dnl *** Checks for IP_DONTFRAGMENT ***
1593         dnl **********************************
1594         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1595         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1596                 int level = IP_DONTFRAGMENT;
1597         ], [
1598                 # Yes, we have it...
1599                 AC_MSG_RESULT(yes)
1600                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1601         ], [
1602                 AC_MSG_RESULT(no)
1603         ])
1604
1605         dnl **********************************
1606         dnl *** Checks for IP_MTU_DISCOVER ***
1607         dnl **********************************
1608         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1609         AC_TRY_COMPILE([#include <linux/in.h>], [
1610                 int level = IP_MTU_DISCOVER;
1611         ], [
1612                 # Yes, we have it...
1613                 AC_MSG_RESULT(yes)
1614                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1615         ], [
1616                 AC_MSG_RESULT(no)
1617         ])
1618
1619         dnl **********************************
1620         dnl *** Checks for  IP_PMTUDISC_DO ***
1621         dnl **********************************
1622         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1623         AC_TRY_COMPILE([#include <linux/in.h>], [
1624                 int level = IP_PMTUDISC_DO;
1625         ], [
1626                 # Yes, we have it...
1627                 AC_MSG_RESULT(yes)
1628                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1629         ], [
1630                 AC_MSG_RESULT(no)
1631         ])
1632
1633         dnl *********************************
1634         dnl *** Check for struct ip_mreqn ***
1635         dnl *********************************
1636         AC_MSG_CHECKING(for struct ip_mreqn)
1637         AC_TRY_COMPILE([#include <netinet/in.h>], [
1638                 struct ip_mreqn mreq;
1639                 mreq.imr_address.s_addr = 0;
1640         ], [
1641                 # Yes, we have it...
1642                 AC_MSG_RESULT(yes)
1643                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1644         ], [
1645                 # We'll just have to try and use struct ip_mreq
1646                 AC_MSG_RESULT(no)
1647                 AC_MSG_CHECKING(for struct ip_mreq)
1648                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1649                         struct ip_mreq mreq;
1650                         mreq.imr_interface.s_addr = 0;
1651                 ], [
1652                         # Yes, we have it...
1653                         AC_MSG_RESULT(yes)
1654                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1655                 ], [
1656                         # No multicast support
1657                         AC_MSG_RESULT(no)
1658                 ])
1659         ])
1660         
1661         dnl **********************************
1662         dnl *** Check for getaddrinfo ***
1663         dnl **********************************
1664         AC_MSG_CHECKING(for getaddrinfo)
1665                 AC_TRY_LINK([
1666                 #include <stdio.h>
1667                 #include <netdb.h>
1668         ], [
1669                 getaddrinfo(NULL,NULL,NULL,NULL);
1670         ], [
1671                 # Yes, we have it...
1672                 AC_MSG_RESULT(yes)
1673                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
1674         ], [
1675                 AC_MSG_RESULT(no)
1676         ])
1677
1678         dnl **********************************
1679         dnl *** Check for gethostbyname2_r ***
1680         dnl **********************************
1681         AC_MSG_CHECKING(for gethostbyname2_r)
1682                 AC_TRY_LINK([
1683                 #include <stdio.h>
1684                 #include <netdb.h>
1685         ], [
1686
1687                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1688         ], [
1689                 # Yes, we have it...
1690                 AC_MSG_RESULT(yes)
1691                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1692         ], [
1693                 AC_MSG_RESULT(no)
1694         ])
1695
1696         dnl **********************************
1697         dnl *** Check for gethostbyname2 ***
1698         dnl **********************************
1699         AC_MSG_CHECKING(for gethostbyname2)
1700                 AC_TRY_LINK([
1701                 #include <stdio.h>
1702                 #include <netdb.h>
1703         ], [
1704                 gethostbyname2(NULL,0);
1705         ], [
1706                 # Yes, we have it...
1707                 AC_MSG_RESULT(yes)
1708                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
1709         ], [
1710                 AC_MSG_RESULT(no)
1711         ])
1712
1713         dnl **********************************
1714         dnl *** Check for gethostbyname ***
1715         dnl **********************************
1716         AC_MSG_CHECKING(for gethostbyname)
1717                 AC_TRY_LINK([
1718                 #include <stdio.h>
1719                 #include <netdb.h>
1720         ], [
1721                 gethostbyname(NULL);
1722         ], [
1723                 # Yes, we have it...
1724                 AC_MSG_RESULT(yes)
1725                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
1726         ], [
1727                 AC_MSG_RESULT(no)
1728         ])
1729
1730         dnl **********************************
1731         dnl *** Check for getprotobyname ***
1732         dnl **********************************
1733         AC_MSG_CHECKING(for getprotobyname)
1734                 AC_TRY_LINK([
1735                 #include <stdio.h>
1736                 #include <netdb.h>
1737         ], [
1738                 getprotobyname(NULL);
1739         ], [
1740                 # Yes, we have it...
1741                 AC_MSG_RESULT(yes)
1742                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
1743         ], [
1744                 AC_MSG_RESULT(no)
1745         ])
1746
1747         dnl **********************************
1748         dnl *** Check for getnameinfo ***
1749         dnl **********************************
1750         AC_MSG_CHECKING(for getnameinfo)
1751                 AC_TRY_LINK([
1752                 #include <stdio.h>
1753                 #include <netdb.h>
1754         ], [
1755                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
1756         ], [
1757                 # Yes, we have it...
1758                 AC_MSG_RESULT(yes)
1759                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
1760         ], [
1761                 AC_MSG_RESULT(no)
1762         ])
1763
1764
1765         dnl **********************************
1766         dnl *** Check for inet_ntop ***
1767         dnl **********************************
1768         AC_MSG_CHECKING(for inet_ntop)
1769                 AC_TRY_LINK([
1770                 #include <stdio.h>
1771                 #include <arpa/inet.h>
1772         ], [
1773                 inet_ntop (0, NULL, NULL, 0);
1774         ], [
1775                 # Yes, we have it...
1776                 AC_MSG_RESULT(yes)
1777                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
1778         ], [
1779                 AC_MSG_RESULT(no)
1780         ])
1781
1782         dnl *****************************
1783         dnl *** Checks for libnsl     ***
1784         dnl *****************************
1785         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1786
1787         AC_CHECK_FUNCS(inet_pton inet_aton)
1788
1789         dnl *****************************
1790         dnl *** Checks for libxnet    ***
1791         dnl *****************************
1792         case "${host}" in
1793                 *solaris* )
1794                         AC_MSG_CHECKING(for Solaris XPG4 support)
1795                         if test -f /usr/lib/libxnet.so; then
1796                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1797                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1798                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1799                                 LIBS="$LIBS -lxnet"
1800                                 AC_MSG_RESULT(yes)
1801                         else
1802                                 AC_MSG_RESULT(no)
1803                         fi
1804
1805                         if test "$GCC" = "yes"; then
1806                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1807                         fi
1808                 ;;
1809         esac
1810
1811         dnl *****************************
1812         dnl *** Checks for libpthread ***
1813         dnl *****************************
1814 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1815 # and libpthread does not exist
1816 #
1817         case "${host}" in
1818                 *-*-*freebsd*)
1819                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1820                 ;;
1821                 *-*-*openbsd*)
1822                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1823                 ;;
1824                 *)
1825                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1826                 ;;
1827         esac
1828         AC_CHECK_HEADERS(pthread.h)
1829         AC_CHECK_HEADERS(pthread_np.h)
1830         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1831         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1832         AC_CHECK_FUNCS(pthread_kill)
1833         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1834         AC_TRY_COMPILE([ #include <pthread.h>], [
1835                 pthread_mutexattr_t attr;
1836                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1837         ], [
1838                 AC_MSG_RESULT(ok)
1839         ], [
1840                 AC_MSG_RESULT(no)
1841                 AC_ERROR(Posix system lacks support for recursive mutexes)
1842         ])
1843         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1844         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1845         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1846
1847         dnl **********************************
1848         dnl *** Check for mincore ***
1849         dnl **********************************
1850         AC_MSG_CHECKING(for mincore)
1851                 AC_TRY_LINK([
1852                 #include <stdio.h>
1853                 #include <sys/types.h>
1854                 #include <sys/mman.h>
1855         ], [
1856                 mincore(NULL, 0, NULL);
1857         ], [
1858                 # Yes, we have it...
1859                 AC_MSG_RESULT(yes)
1860                 AC_DEFINE(HAVE_MINCORE, 1, [Have mincore])
1861         ], [
1862                 AC_MSG_RESULT(no)
1863         ])
1864
1865         dnl ***********************************
1866         dnl *** Checks for working __thread ***
1867         dnl ***********************************
1868         AC_MSG_CHECKING(for working __thread)
1869         if test "x$with_tls" != "x__thread"; then
1870                 AC_MSG_RESULT(disabled)
1871         elif test "x$cross_compiling" = "xyes"; then
1872                 AC_MSG_RESULT(cross compiling, assuming yes)
1873         else
1874                 AC_TRY_RUN([
1875                         #if defined(__APPLE__) && defined(__clang__)
1876                         #error "__thread does not currently work with clang on Mac OS X"
1877                         #endif
1878                         
1879                         #include <pthread.h>
1880                         __thread int i;
1881                         static int res1, res2;
1882
1883                         void thread_main (void *arg)
1884                         {
1885                                 i = arg;
1886                                 sleep (1);
1887                                 if (arg == 1)
1888                                         res1 = (i == arg);
1889                                 else
1890                                         res2 = (i == arg);
1891                         }
1892
1893                         int main () {
1894                                 pthread_t t1, t2;
1895
1896                                 i = 5;
1897
1898                                 pthread_create (&t1, NULL, thread_main, 1);
1899                                 pthread_create (&t2, NULL, thread_main, 2);
1900
1901                                 pthread_join (t1, NULL);
1902                                 pthread_join (t2, NULL);
1903
1904                                 return !(res1 + res2 == 2);
1905                         }
1906                 ], [
1907                                 AC_MSG_RESULT(yes)
1908                 ], [
1909                                 AC_MSG_RESULT(no)
1910                                 with_tls=pthread
1911                 ])
1912         fi
1913
1914         dnl **************************************
1915         dnl *** Checks for working sigaltstack ***
1916         dnl **************************************
1917         AC_MSG_CHECKING(for working sigaltstack)
1918         if test "x$with_sigaltstack" != "xyes"; then
1919                 AC_MSG_RESULT(disabled)
1920         elif test "x$cross_compiling" = "xyes"; then
1921                 AC_MSG_RESULT(cross compiling, assuming yes)
1922         else
1923                 AC_TRY_RUN([
1924                         #include <stdio.h>
1925                         #include <stdlib.h>
1926                         #include <unistd.h>
1927                         #include <signal.h>
1928                         #include <pthread.h>
1929                         #include <sys/wait.h>
1930                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1931                         #define SA_STACK SA_ONSTACK
1932                         #endif
1933                         static void
1934                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1935                         {
1936                                 exit (0);
1937                         }
1938
1939                         volatile char*__ptr = NULL;
1940                         static void *
1941                         loop (void *ignored)
1942                         {
1943                                 *__ptr = 0;
1944                                 return NULL;
1945                         }
1946
1947                         static void
1948                         child ()
1949                         {
1950                                 struct sigaction sa;
1951                         #ifdef __APPLE__
1952                                 stack_t sas;
1953                         #else
1954                                 struct sigaltstack sas;
1955                         #endif
1956                                 pthread_t id;
1957                                 pthread_attr_t attr;
1958
1959                                 sa.sa_sigaction = sigsegv_signal_handler;
1960                                 sigemptyset (&sa.sa_mask);
1961                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1962                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1963                                         perror ("sigaction");
1964                                         return;
1965                                 }
1966
1967                                 /* x86 darwin deliver segfaults using SIGBUS */
1968                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
1969                                         perror ("sigaction");
1970                                         return;
1971                                 }
1972                                 sas.ss_sp = malloc (SIGSTKSZ);
1973                                 sas.ss_size = SIGSTKSZ;
1974                                 sas.ss_flags = 0;
1975                                 if (sigaltstack (&sas, NULL) == -1) {
1976                                         perror ("sigaltstack");
1977                                         return;
1978                                 }
1979
1980                                 pthread_attr_init (&attr);
1981                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1982                                         printf ("pthread_create\n");
1983                                         return;
1984                                 }
1985
1986                                 sleep (100);
1987                         }
1988
1989                         int
1990                         main ()
1991                         {
1992                                 pid_t son;
1993                                 int status;
1994                                 int i;
1995
1996                                 son = fork ();
1997                                 if (son == -1) {
1998                                         return 1;
1999                                 }
2000
2001                                 if (son == 0) {
2002                                         child ();
2003                                         return 0;
2004                                 }
2005
2006                                 for (i = 0; i < 300; ++i) {
2007                                         waitpid (son, &status, WNOHANG);
2008                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
2009                                                 return 0;
2010                                         usleep (10000);
2011                                 }
2012
2013                                 kill (son, SIGKILL);
2014                                 return 1;
2015                         }
2016
2017                 ], [
2018                                 AC_MSG_RESULT(yes)
2019                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
2020                 ], [
2021                                 with_sigaltstack=no
2022                                 AC_MSG_RESULT(no)
2023                 ])
2024         fi
2025
2026         dnl ********************************
2027         dnl *** Checks for semaphore lib ***
2028         dnl ********************************
2029         # 'Real Time' functions on Solaris
2030         # posix4 on Solaris 2.6
2031         # pthread (first!) on Linux
2032         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
2033
2034         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
2035         AC_CHECK_FUNCS(shm_open)
2036
2037         dnl ********************************
2038         dnl *** Checks for timezone stuff **
2039         dnl ********************************
2040         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
2041                 AC_TRY_COMPILE([
2042                         #include <time.h>
2043                         ], [
2044                         struct tm tm;
2045                         tm.tm_gmtoff = 1;
2046                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
2047         if test $ac_cv_struct_tm_gmtoff = yes; then
2048                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
2049         else
2050                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
2051                         AC_TRY_COMPILE([
2052                                 #include <time.h>
2053                         ], [
2054                                 timezone = 1;
2055                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
2056                 if test $ac_cv_var_timezone = yes; then
2057                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
2058                 else
2059                         AC_ERROR(unable to find a way to determine timezone)
2060                 fi
2061         fi
2062
2063         dnl *********************************
2064         dnl *** Checks for math functions ***
2065         dnl *********************************
2066         AC_SEARCH_LIBS(sqrtf, m)
2067         if test "x$has_broken_apple_cpp" != "xyes"; then
2068                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
2069                         AC_TRY_LINK([#include <math.h>], 
2070                         [ finite(0.0); ], 
2071                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
2072                         AC_MSG_RESULT(no)))
2073         fi
2074         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
2075                 AC_TRY_LINK([#include <math.h>], 
2076                 [ isfinite(0.0); ], 
2077                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
2078                 AC_MSG_RESULT(no)))
2079
2080         dnl ****************************************************************
2081         dnl *** Checks for working poll() (macosx defines it but doesn't ***
2082         dnl *** have it in the library (duh))                            ***
2083         dnl ****************************************************************
2084         AC_CHECK_FUNCS(poll)
2085
2086         dnl *************************
2087         dnl *** Check for signbit ***
2088         dnl *************************
2089         AC_MSG_CHECKING(for signbit)
2090         AC_TRY_LINK([#include <math.h>], [
2091                 int s = signbit(1.0);
2092         ], [
2093                 AC_MSG_RESULT(yes)
2094                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
2095         ], [
2096                 AC_MSG_RESULT(no)
2097         ]) 
2098
2099         dnl **********************************
2100         dnl *** epoll                      ***
2101         dnl **********************************
2102         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
2103                 AC_CHECK_HEADERS(sys/epoll.h)
2104                 haveepoll=no
2105                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
2106                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
2107                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
2108                 fi
2109         fi
2110
2111         havekqueue=no
2112
2113         AC_CHECK_HEADERS(sys/event.h)
2114         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
2115
2116         dnl **************************************
2117         dnl * Darwin has a race that prevents us from using reliably:
2118         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
2119         dnl * Since kqueue is mostly used for scaling large web servers, 
2120         dnl * and very few folks run Mono on large web servers on OSX, falling
2121         dnl * back 
2122         dnl **************************************
2123         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
2124                 if test "x$host_darwin" = "xno"; then
2125                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
2126                 fi
2127         fi
2128
2129         dnl ******************************
2130         dnl *** Checks for SIOCGIFCONF ***
2131         dnl ******************************
2132         AC_CHECK_HEADERS(sys/ioctl.h)
2133         AC_CHECK_HEADERS(net/if.h, [], [],
2134            [
2135            #ifdef HAVE_SYS_TYPES_H
2136            # include <sys/types.h>
2137            #endif
2138            #ifdef HAVE_SYS_SOCKET_H
2139            # include <sys/socket.h>
2140            #endif
2141            ])
2142         AC_MSG_CHECKING(for ifreq)
2143         AC_TRY_COMPILE([
2144                 #include <stdio.h>
2145                 #include <sys/ioctl.h>
2146                 #include <net/if.h>
2147                 ], [
2148                 struct ifconf ifc;
2149                 struct ifreq *ifr;
2150                 void *x;
2151                 ifc.ifc_len = 0;
2152                 ifc.ifc_buf = NULL;
2153                 x = (void *) &ifr->ifr_addr;
2154                 ],[
2155                         AC_MSG_RESULT(yes)
2156                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
2157                 ], [
2158                         AC_MSG_RESULT(no)
2159                 ])
2160         dnl **********************************
2161         dnl ***     Checks for sin_len     ***
2162         dnl **********************************
2163         AC_MSG_CHECKING(for sockaddr_in.sin_len)
2164         AC_TRY_COMPILE([
2165                 #include <netinet/in.h>
2166                 ], [
2167                 struct sockaddr_in saddr;
2168                 saddr.sin_len = sizeof (saddr);
2169                 ],[
2170                         AC_MSG_RESULT(yes)
2171                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
2172                 ], [
2173                         AC_MSG_RESULT(no)
2174                 ])      
2175         dnl **********************************
2176         dnl ***    Checks for sin6_len     ***
2177         dnl **********************************
2178         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
2179         AC_TRY_COMPILE([
2180                 #include <netinet/in.h>
2181                 ], [
2182                 struct sockaddr_in6 saddr6;
2183                 saddr6.sin6_len = sizeof (saddr6);
2184                 ],[
2185                         AC_MSG_RESULT(yes)
2186                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
2187                 ], [
2188                         AC_MSG_RESULT(no)
2189                 ])
2190         dnl **********************************
2191         dnl *** Check for getifaddrs       ***
2192         dnl **********************************
2193         AC_MSG_CHECKING(for getifaddrs)
2194                 AC_TRY_LINK([
2195                 #include <stdio.h>
2196                 #include <sys/types.h>
2197                 #include <sys/socket.h>
2198                 #include <ifaddrs.h>
2199         ], [
2200                 getifaddrs(NULL);
2201         ], [
2202                 # Yes, we have it...
2203                 AC_MSG_RESULT(yes)
2204                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
2205         ], [
2206                 AC_MSG_RESULT(no)
2207         ])
2208         dnl **********************************
2209         dnl *** Check for if_nametoindex   ***
2210         dnl **********************************
2211         AC_MSG_CHECKING(for if_nametoindex)
2212                 AC_TRY_LINK([
2213                 #include <stdio.h>
2214                 #include <sys/types.h>
2215                 #include <sys/socket.h>
2216                 #include <net/if.h>
2217         ], [
2218                 if_nametoindex(NULL);
2219         ], [
2220                 # Yes, we have it...
2221                 AC_MSG_RESULT(yes)
2222                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
2223         ], [
2224                 AC_MSG_RESULT(no)
2225         ])
2226                         
2227         dnl **********************************
2228         dnl *** Checks for MonoPosixHelper ***
2229         dnl **********************************
2230         AC_CHECK_HEADERS(checklist.h)
2231         AC_CHECK_HEADERS(pathconf.h)
2232         AC_CHECK_HEADERS(fstab.h)
2233         AC_CHECK_HEADERS(attr/xattr.h)
2234         AC_CHECK_HEADERS(sys/extattr.h)
2235         AC_CHECK_HEADERS(sys/sendfile.h)
2236         AC_CHECK_HEADERS(sys/statvfs.h)
2237         AC_CHECK_HEADERS(sys/statfs.h)
2238         AC_CHECK_HEADERS(sys/vfstab.h)
2239         AC_CHECK_HEADERS(sys/xattr.h)
2240         AC_CHECK_HEADERS(sys/mman.h)
2241         AC_CHECK_HEADERS(sys/param.h)
2242         AC_CHECK_HEADERS(sys/mount.h, [], [],
2243                 [
2244                 #ifdef HAVE_SYS_PARAM_H
2245                 # include <sys/param.h>
2246                 #endif
2247                 ])
2248         AC_CHECK_HEADERS(sys/mount.h)
2249         AC_CHECK_FUNCS(confstr)
2250         AC_CHECK_FUNCS(seekdir telldir)
2251         AC_CHECK_FUNCS(getdomainname)
2252         AC_CHECK_FUNCS(setdomainname)
2253         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
2254         AC_CHECK_FUNCS(setgroups)
2255         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
2256         AC_CHECK_FUNCS(getfsstat)
2257         AC_CHECK_FUNCS(lutimes futimes)
2258         AC_CHECK_FUNCS(mremap)
2259         AC_CHECK_FUNCS(remap_file_pages)
2260         AC_CHECK_FUNCS(posix_fadvise)
2261         AC_CHECK_FUNCS(posix_fallocate)
2262         AC_CHECK_FUNCS(posix_madvise)
2263         AC_CHECK_FUNCS(vsnprintf)
2264         AC_CHECK_FUNCS(sendfile)
2265         AC_CHECK_FUNCS(gethostid sethostid)
2266         AC_CHECK_FUNCS(sethostname)
2267         AC_CHECK_FUNCS(statfs)
2268         AC_CHECK_FUNCS(fstatfs)
2269         AC_CHECK_FUNCS(statvfs)
2270         AC_CHECK_FUNCS(fstatvfs)
2271         AC_CHECK_FUNCS(stime)
2272         AC_CHECK_FUNCS(strerror_r)
2273         AC_CHECK_FUNCS(ttyname_r)
2274         AC_CHECK_FUNCS(psignal)
2275         AC_CHECK_FUNCS(getlogin_r)
2276         AC_CHECK_FUNCS(lockf)
2277         AC_CHECK_FUNCS(swab)
2278         AC_CHECK_FUNCS(setusershell endusershell)
2279         AC_CHECK_FUNCS(futimens utimensat)
2280         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2281         AC_CHECK_FUNCS(readv writev preadv pwritev)
2282         AC_CHECK_FUNCS(setpgid)
2283         AC_CHECK_FUNCS(system)
2284         AC_CHECK_FUNCS(fork execv execve)
2285         AC_CHECK_FUNCS(accept4)
2286         AC_CHECK_SIZEOF(size_t)
2287         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
2288                 [#include <sys/types.h>
2289                  #include <sys/stat.h>
2290                  #include <unistd.h>])
2291         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2292                 [#include <sys/types.h>
2293                  #include <sys/stat.h>
2294                  #include <unistd.h>])
2295         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2296                 [#include <sys/time.h>])
2297         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
2298                 [#include <sys/socket.h>])
2299         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2300                 [#include <unistd.h>
2301                  #include <fcntl.h>])
2302         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2303                 [#include <sys/uio.h>])
2304         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
2305                 [#include <sys/socket.h>])
2306         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2307                 [#include <sys/poll.h>])
2308         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
2309                 [#include <sys/socket.h>])
2310         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
2311                 [#include <sys/socket.h>])
2312         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
2313                 [#include <netinet/in.h>])
2314         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
2315                 [#include <netinet/in.h>])
2316         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
2317                 [#include <sys/un.h>])
2318         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2319                 [#include <sys/types.h>
2320                  #include <sys/stat.h>
2321                  #include <unistd.h>])
2322         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2323                 [#include <time.h>])
2324         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2325                 [#include <sys/time.h>
2326                  #include <sys/types.h>
2327                  #include <utime.h>])
2328         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2329                 [#include <sys/time.h>])
2330         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2331                 [#include <sys/types.h>
2332                  #include <utime.h>])
2333         AC_CHECK_MEMBERS(
2334                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
2335                 [#include <sys/types.h>
2336                  #include <dirent.h>])
2337         AC_CHECK_MEMBERS(
2338                 [struct passwd.pw_gecos],,, 
2339                 [#include <sys/types.h>
2340                  #include <pwd.h>])
2341         AC_CHECK_MEMBERS(
2342                 [struct statfs.f_flags],,, 
2343                 [#include <sys/types.h>
2344                  #include <sys/vfs.h>])
2345         AC_CHECK_MEMBERS(
2346                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,, 
2347                 [#include <sys/types.h>
2348                  #include <sys/stat.h>
2349                  #include <unistd.h>])
2350
2351         dnl Favour xattr through glibc, but use libattr if we have to
2352         AC_CHECK_FUNC(lsetxattr, ,
2353                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2354         )
2355         AC_SUBST(XATTR_LIB)
2356
2357         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2358         AC_CHECK_MEMBERS(
2359                 [struct kinfo_proc.kp_proc],,, 
2360                 [#include <sys/types.h>
2361                  #include <sys/param.h>
2362                  #include <sys/sysctl.h>
2363                  #include <sys/proc.h>
2364                  ])
2365
2366         dnl *********************************
2367         dnl *** Checks for Windows compilation ***
2368         dnl *********************************
2369         AC_CHECK_HEADERS(sys/time.h)
2370         AC_CHECK_HEADERS(sys/param.h)
2371         AC_CHECK_HEADERS(dirent.h)
2372
2373         dnl ******************************************
2374         dnl *** Checks for OSX and iOS compilation ***
2375         dnl ******************************************
2376         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2377
2378         dnl *********************************
2379         dnl *** Check for Console 2.0 I/O ***
2380         dnl *********************************
2381         AC_CHECK_HEADERS([curses.h])
2382         AC_CHECK_HEADERS([term.h], [], [],
2383         [#if HAVE_CURSES_H
2384          #include <curses.h>
2385          #endif
2386         ])
2387         AC_CHECK_HEADERS([termios.h])
2388 else
2389         dnl *********************************
2390         dnl *** Checks for Windows compilation ***
2391         dnl *********************************
2392         AC_CHECK_HEADERS(winternl.h)
2393
2394         jdk_headers_found=no
2395         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2396         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2397         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2398         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2399         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2400         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2401         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2402
2403         dnl *********************************
2404         dnl *** Check for struct ip_mreqn ***
2405         dnl *********************************
2406         AC_MSG_CHECKING(for struct ip_mreqn)
2407         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2408                 struct ip_mreqn mreq;
2409                 mreq.imr_address.s_addr = 0;
2410         ], [
2411                 # Yes, we have it...
2412                 AC_MSG_RESULT(yes)
2413                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2414         ], [
2415                 # We'll just have to try and use struct ip_mreq
2416                 AC_MSG_RESULT(no)
2417                 AC_MSG_CHECKING(for struct ip_mreq)
2418                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2419                         struct ip_mreq mreq;
2420                         mreq.imr_interface.s_addr = 0;
2421                 ], [
2422                         # Yes, we have it...
2423                         AC_MSG_RESULT(yes)
2424                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2425                 ], [
2426                         # No multicast support
2427                         AC_MSG_RESULT(no)
2428                 ])
2429         ])
2430
2431         dnl **********************************
2432         dnl *** Check for getaddrinfo ***
2433         dnl **********************************
2434         AC_MSG_CHECKING(for getaddrinfo)
2435                 AC_TRY_LINK([
2436                 #include <stdio.h>
2437                 #include <winsock2.h>
2438                 #include <ws2tcpip.h>
2439         ], [
2440                 getaddrinfo(NULL,NULL,NULL,NULL);
2441         ], [
2442                 # Yes, we have it...
2443                 AC_MSG_RESULT(yes)
2444                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2445         ], [
2446                 AC_MSG_RESULT(no)
2447         ])
2448
2449         dnl **********************************
2450         dnl *** Check for gethostbyname ***
2451         dnl **********************************
2452         AC_MSG_CHECKING(for gethostbyname)
2453                 AC_TRY_LINK([
2454                 #include <stdio.h>
2455                 #include <winsock2.h>
2456                 #include <ws2tcpip.h>
2457         ], [
2458                 gethostbyname(NULL);
2459         ], [
2460                 # Yes, we have it...
2461                 AC_MSG_RESULT(yes)
2462                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2463         ], [
2464                 AC_MSG_RESULT(no)
2465         ])
2466
2467         dnl **********************************
2468         dnl *** Check for getprotobyname ***
2469         dnl **********************************
2470         AC_MSG_CHECKING(for getprotobyname)
2471                 AC_TRY_LINK([
2472                 #include <stdio.h>
2473                 #include <winsock2.h>
2474                 #include <ws2tcpip.h>
2475         ], [
2476                 getprotobyname(NULL);
2477         ], [
2478                 # Yes, we have it...
2479                 AC_MSG_RESULT(yes)
2480                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2481         ], [
2482                 AC_MSG_RESULT(no)
2483         ])
2484
2485         dnl **********************************
2486         dnl *** Check for getnameinfo ***
2487         dnl **********************************
2488         AC_MSG_CHECKING(for getnameinfo)
2489                 AC_TRY_LINK([
2490                 #include <stdio.h>
2491                 #include <winsock2.h>
2492                 #include <ws2tcpip.h>
2493         ], [
2494                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2495         ], [
2496                 # Yes, we have it...
2497                 AC_MSG_RESULT(yes)
2498                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2499         ], [
2500                 AC_MSG_RESULT(no)
2501         ])
2502
2503         dnl **********************************
2504         dnl *** Check for inet_ntop ***
2505         dnl **********************************
2506         AC_MSG_CHECKING(for inet_ntop)
2507                 AC_TRY_LINK([
2508                 #include <stdio.h>
2509                 #include <winsock2.h>
2510                 #include <ws2tcpip.h>
2511         ], [
2512                 inet_ntop (0, NULL, NULL, 0);
2513         ], [
2514                 # Yes, we have it...
2515                 AC_MSG_RESULT(yes)
2516                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2517         ], [
2518                 AC_MSG_RESULT(no)
2519         ])
2520
2521         dnl **********************************
2522         dnl *** Check for inet_pton ***
2523         dnl **********************************
2524         AC_MSG_CHECKING(for inet_pton)
2525                 AC_TRY_LINK([
2526                 #include <stdio.h>
2527                 #include <winsock2.h>
2528                 #include <ws2tcpip.h>
2529         ], [
2530                 #ifndef inet_pton
2531                 (void) inet_pton;
2532                 #endif
2533                 inet_pton (0, NULL, NULL);
2534         ], [
2535                 # Yes, we have it...
2536                 AC_MSG_RESULT(yes)
2537                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
2538         ], [
2539                 AC_MSG_RESULT(no)
2540         ])
2541
2542         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2543         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2544         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2545         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2546         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2547         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2548         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2549 fi
2550
2551 dnl socklen_t check
2552 AC_MSG_CHECKING(for socklen_t)
2553 AC_TRY_COMPILE([
2554 #include <sys/types.h>
2555 #include <sys/socket.h>
2556 ],[
2557   socklen_t foo;
2558 ],[
2559 ac_cv_c_socklen_t=yes
2560         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2561         AC_MSG_RESULT(yes)
2562 ],[
2563         AC_MSG_RESULT(no)
2564 ])
2565
2566 AC_MSG_CHECKING(for array element initializer support)
2567 AC_TRY_COMPILE([#include <sys/socket.h>], [
2568         const int array[] = {[1] = 2,};
2569 ], [
2570         # Yes, we have it...
2571         AC_MSG_RESULT(yes)
2572         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2573 ], [
2574         # We'll have to use signals
2575         AC_MSG_RESULT(no)
2576 ])
2577
2578 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2579         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2580         AC_TRY_LINK([#include <math.h>], 
2581         [ static void *p = &trunc; ],
2582         [
2583                 AC_DEFINE(HAVE_TRUNC) 
2584                 AC_MSG_RESULT(yes)
2585                 ac_cv_trunc=yes
2586         ],
2587         AC_MSG_RESULT(no)))
2588
2589 if test "x$ac_cv_truncl" != "xyes"; then
2590    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2591 fi
2592
2593 AC_CHECK_FUNCS(execvp)
2594
2595 dnl ****************************
2596 dnl *** Look for /dev/random ***
2597 dnl ****************************
2598
2599 AC_MSG_CHECKING([if usage of random device is requested])
2600 AC_ARG_ENABLE(dev-random,
2601 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2602 try_dev_random=$enableval, try_dev_random=yes)
2603
2604 AC_MSG_RESULT($try_dev_random)
2605
2606 case "{$build}" in
2607     *-openbsd*)
2608     NAME_DEV_RANDOM="/dev/srandom"
2609     ;;
2610
2611 dnl Win32 does not have /dev/random, they have their own method...
2612
2613     *-mingw*|*-*-cygwin*)
2614     ac_cv_have_dev_random=no
2615     ;;
2616
2617 dnl Everywhere else, it's /dev/random
2618
2619     *)
2620     NAME_DEV_RANDOM="/dev/random"
2621     ;;
2622 esac
2623
2624 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2625
2626 dnl Now check if the device actually exists
2627
2628 if test "x$try_dev_random" = "xyes"; then
2629     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2630     [if test -r "$NAME_DEV_RANDOM" ; then
2631         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2632     if test "x$ac_cv_have_dev_random" = "xyes"; then
2633         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2634     fi
2635 else
2636     AC_MSG_CHECKING(for random device)
2637     ac_cv_have_dev_random=no
2638     AC_MSG_RESULT(has been disabled)
2639 fi
2640
2641 if test "x$host_win32" = "xyes"; then
2642     AC_DEFINE(HAVE_CRYPT_RNG)
2643 fi
2644
2645 if test "x$ac_cv_have_dev_random" = "xno" \
2646     && test "x$host_win32" = "xno"; then
2647     AC_MSG_WARN([[
2648 ***
2649 *** A system-provided entropy source was not found on this system.
2650 *** Because of this, the System.Security.Cryptography random number generator
2651 *** will throw a NotImplemented exception.
2652 ***
2653 *** If you are seeing this message, and you know your system DOES have an
2654 *** entropy collection in place, please contact <crichton@gimp.org> and
2655 *** provide information about the system and how to access the random device.
2656 ***
2657 *** Otherwise you can install either egd or prngd and set the environment
2658 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2659 ***]])
2660 fi
2661
2662 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2663
2664 AC_ARG_ENABLE(perf-events, [  --enable-perf-events Enable using `perf` for profiling on Linux], test_perf_events=$enableval, test_perf_events=no)
2665 if test "x$test_perf_events" = "xyes"; then
2666         AC_DEFINE(ENABLE_PERF_EVENTS, 1, [Enable using `perf` for profiling on Linux])
2667         AC_SUBST(ENABLE_PERF_EVENTS)
2668 fi
2669
2670 AC_MSG_CHECKING([if big-arrays are to be enabled])
2671 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2672 if test "x$enable_big_arrays" = "xyes" ; then
2673     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2674         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2675     else
2676         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2677     fi
2678 fi
2679 AC_MSG_RESULT($enable_big_arrays)
2680
2681 dnl **************
2682 dnl *** DTRACE ***
2683 dnl **************
2684
2685 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2686
2687 if test "x$enable_dtrace" = "xyes"; then
2688    if test "x$has_dtrace" = "xno"; then
2689           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2690    fi
2691    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2692    if test "x$DTRACE" = "xno"; then
2693           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2694           enable_dtrace=no
2695    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2696           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2697           enable_dtrace=no
2698    fi
2699 fi
2700
2701 dtrace_g=no
2702 if test "x$enable_dtrace" = "xyes"; then
2703         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2704         DTRACEFLAGS=
2705         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2706                 case "$host" in
2707                         powerpc-*-darwin*)
2708                         DTRACEFLAGS="-arch ppc64"
2709                         ;;
2710                         i*86-*-darwin*)
2711                         DTRACEFLAGS="-arch x86_64"
2712                         ;;
2713                         *)
2714                         DTRACEFLAGS=-64
2715                         ;;
2716                 esac
2717         else
2718                 case "$host" in
2719                         powerpc-*-darwin*)
2720                         DTRACEFLAGS="-arch ppc"
2721                         ;;
2722                         i*86-*-darwin*)
2723                         DTRACEFLAGS="-arch i386"
2724                         ;;
2725                         *)
2726                         DTRACEFLAGS=-32
2727                         ;;
2728                 esac
2729         fi
2730         AC_SUBST(DTRACEFLAGS)
2731         case "$host" in
2732                 *-*-solaris*)
2733                 dtrace_g=yes
2734                 ;;
2735         esac
2736         AC_CHECK_HEADERS([sys/sdt.h])
2737 fi
2738 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2739 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2740
2741 dnl **************
2742 dnl ***  NaCl  ***
2743 dnl **************
2744
2745 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2746 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2747
2748 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2749
2750 dnl
2751 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2752 dnl
2753 nacl_self_host=""
2754 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2755    nacl_self_host="nacl_self_host"
2756 fi
2757 AC_SUBST(nacl_self_host)
2758
2759 if test "x$enable_nacl_codegen" = "xyes"; then
2760    MONO_NACL_ALIGN_MASK_OFF=1
2761    AC_DEFINE(TARGET_NACL, 1, [...])
2762    AC_DEFINE(__native_client_codegen__, 1, [...])
2763 fi
2764 if test "x$enable_nacl_gc" = "xyes"; then
2765    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2766       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2767    else
2768       # Not yet implemented
2769       INSTRUMENT_CFLAG=""
2770    fi
2771    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2772 fi
2773 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2774
2775 dnl **************************
2776 dnl *** AOT cross offsets  ***
2777 dnl **************************
2778
2779 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
2780     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
2781
2782 dnl **************
2783 dnl ***  LLVM  ***
2784 dnl **************
2785
2786 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=default)
2787 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2788 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2789 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
2790
2791 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2792
2793 if test "x$enable_llvm" = "xdefault"; then
2794    enable_llvm=$enable_llvm_default
2795 fi
2796
2797 if test "x$enable_llvm" = "xyes"; then
2798    if test "x$with_llvm" != "x"; then
2799           LLVM_CONFIG=$with_llvm/bin/llvm-config
2800           if test x$host_win32 = xyes; then
2801                 LLVM_CONFIG=$LLVM_CONFIG.exe
2802           fi
2803           if test ! -x $LLVM_CONFIG; then
2804                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2805       fi
2806    else
2807       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2808       if test "x$LLVM_CONFIG" = "xno"; then
2809              AC_MSG_ERROR([llvm-config not found.])
2810       fi
2811    fi
2812
2813    llvm_codegen="x86codegen"
2814    case "$target" in
2815    arm*)
2816                 llvm_codegen="armcodegen"
2817                 ;;
2818    esac
2819
2820    if test "x$host_win32" = "xno"; then
2821
2822    # Should be something like '2.6' or '2.7svn'
2823    llvm_version=`$LLVM_CONFIG --version`
2824    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2825    AC_MSG_CHECKING(LLVM version)
2826    AC_MSG_RESULT($llvm_version $llvm_api_version)
2827    if echo $llvm_version | grep -q 'mono'; then
2828           if test "x$enable_llvm_version_check" = "xyes"; then
2829                  if test "$llvm_version" != "$expected_llvm_version"; then
2830                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2831                  fi
2832           fi
2833    else
2834           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.])
2835    fi
2836
2837    # The output of --cflags seems to include optimizations flags too
2838    if test $llvm_api_version -gt 100; then
2839           # The --cflags argument includes all kinds of warnings -pendantic etc.
2840           LLVM_CFLAGS="-I$with_llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2841           LLVM_CXXFLAGS="-I$with_llvm/include -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2842    else
2843           LLVM_CFLAGS=`$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'`
2844       LLVM_CXXFLAGS=`$LLVM_CONFIG --cxxflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2845    fi
2846    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2847    # from LLVM classes.
2848    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -fno-rtti -fexceptions"
2849    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2850    # This might include empty lines
2851    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2852    llvm_jit_supported=yes
2853    llvm_jit_libs="jit mcjit $llvm_codegen"
2854    if test $llvm_api_version -gt 100; then
2855           # Based on llvm 3.9, only aot is currently supported
2856       llvm_jit_libs="orcjit $llvm_codegen"
2857    elif test "x$host" != "x$target"; then
2858       # No need for jit libs
2859           llvm_jit_supported=no
2860       llvm_jit_libs=""
2861    fi
2862    LLVM_LIBS=`$LLVM_CONFIG --libs analysis core bitwriter $llvm_jit_libs`
2863    if test "x$LLVM_LIBS" = "x"; then
2864           echo "$LLVM_CONFIG --libs failed."
2865           exit 1
2866    fi
2867    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS"
2868    # The c++ standard library used by llvm doesn't show up in $LLVM_SYSTEM_LIBS so add it manually
2869    if echo $LLVM_CXXFLAGS | grep -q -- '-stdlib=libc++'; then
2870       LLVM_LIBS="$LLVM_LIBS -lc++"
2871    else
2872       LLVM_LIBS="$LLVM_LIBS -lstdc++"
2873    fi
2874
2875    expected_llvm_version="3.4svn-mono-mono/e656cac"
2876
2877    else
2878        LLVM_CFLAGS="-I$with_llvm/include -DNDEBUG -D__NO_CTYPE_INLINE -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2879        LLVM_CXXFLAGS="$LLVM_CFLAGS -std=gnu++11 -fvisibility-inlines-hidden -fno-rtti -Woverloaded-virtual -Wcast-qual"
2880        LLVM_LDFLAGS="-L$with_llvm/lib"
2881        LLVM_SYSTEM_LIBS="-lshell32 -lpsapi -limagehlp -ldbghelp -lm"
2882        LLVM_LIBS="-lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter \
2883          -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo \
2884          -lLLVMARMAsmPrinter -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler \
2885          -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc \
2886          -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT \
2887          -lLLVMAnalysis -lLLVMTarget \
2888          -lLLVMIRReader -lLLVMAsmParser -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation \
2889          -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils \
2890          -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld \
2891          -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore \
2892          -lLLVMSupport -lstdc++"
2893        LLVM_LIBS="$LLVM_LIBS $LLVM_SYSTEM_LIBS"
2894
2895        llvm_config_path=$with_llvm/include/llvm/Config/llvm-config.h
2896        llvm_api_version=`awk '/MONO_API_VERSION/ { print $3 }' $llvm_config_path`
2897    fi  
2898
2899    if test "x$llvm_api_version" = "x"; then
2900           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2901           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2902    else
2903           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2904           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2905    fi   
2906
2907    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2908
2909    AC_SUBST(LLVM_CFLAGS)
2910    AC_SUBST(LLVM_CXXFLAGS)
2911    AC_SUBST(LLVM_LIBS)
2912    AC_SUBST(LLVM_LDFLAGS)
2913    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2914 fi
2915
2916 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2917 if test "x$enable_loadedllvm" = "xyes"; then
2918    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2919 fi
2920 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2921
2922 if test "x$enable_llvm" = "xyes"; then
2923    enable_llvm_runtime=yes
2924 fi
2925 if test "x$enable_llvm_runtime" = "xyes"; then
2926    AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
2927 fi
2928 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes])
2929
2930 TARGET="unknown"
2931 ACCESS_UNALIGNED="yes"
2932
2933 LIBC="libc.so.6"
2934 INTL="libc.so.6"
2935 SQLITE="libsqlite.so.0"
2936 SQLITE3="libsqlite3.so.0"
2937 X11="libX11.so"
2938 GDKX11="libgdk-x11-2.0.so.0"
2939 GTKX11="libgtk-x11-2.0.so.0"
2940 XINERAMA="libXinerama.so.1"
2941
2942 sizeof_register="SIZEOF_VOID_P"
2943
2944 jit_wanted=true
2945 boehm_supported=true
2946 case "$host" in
2947         mips*)
2948                 TARGET=MIPS;
2949                 arch_target=mips;
2950                 with_tls=pthread;
2951                 ACCESS_UNALIGNED="no"
2952
2953                 AC_MSG_CHECKING(for mips n32)
2954                 AC_TRY_COMPILE([],[
2955                 #if _MIPS_SIM != _ABIN32
2956                 #error Not mips n32
2957                 #endif
2958                 return 0;
2959                 ],[
2960                 AC_MSG_RESULT(yes)
2961                 sizeof_register=8
2962                 ],[
2963                 AC_MSG_RESULT(no)
2964                 ])
2965                 ;;
2966         i*86-*-*)
2967                 TARGET=X86;
2968                 arch_target=x86;
2969                 case $host_os in
2970                   solaris*)
2971                         LIBC="libc.so"
2972                         INTL="libintl.so"
2973                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2974                                 TARGET=AMD64
2975                                 arch_target=amd64
2976                         fi
2977
2978                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
2979                         # int astruct __attribute__ ((visibility ("hidden")));
2980                         # void foo ()
2981                         # {
2982                         #       void *p = &astruct;
2983                         # }
2984                         # gcc -fPIC --shared -o libfoo.so foo.c
2985                         # yields:
2986                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
2987                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
2988                         have_visibility_hidden=no
2989                         ;;
2990                   mingw*|cygwin*)
2991                         have_visibility_hidden=no                 
2992                         ;;
2993                   haiku*)
2994                         LIBC=libroot.so
2995                         ;;
2996                   linux*)
2997                         AOT_SUPPORTED="yes"
2998                         ;;
2999                   darwin*)
3000                         AOT_SUPPORTED="yes"
3001                         ;;
3002                   openbsd*|freebsd*|kfreebsd-gnu*)
3003                         ;;
3004                 esac
3005                 ;;
3006         x86_64-*-* | amd64-*-*)
3007                 TARGET=AMD64;
3008                 arch_target=amd64;
3009                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
3010                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3011                         sizeof_register=8
3012                 fi
3013                 case $host_os in
3014                   linux*)
3015                         AOT_SUPPORTED="yes"
3016                         ;;
3017                   darwin*)
3018                         AOT_SUPPORTED="yes"
3019                         ;;
3020                   openbsd*|freebsd*|kfreebsd-gnu*)
3021                         ;;
3022                   mingw*)
3023                         ;;
3024                 esac
3025                 case "$host" in
3026                         x86_64-*-nacl*)
3027                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3028                                 sizeof_register=8
3029                                 ;;
3030                 esac
3031                 ;;
3032         ia64-*-*)
3033                 TARGET=IA64
3034                 arch_target=ia64
3035                 ACCESS_UNALIGNED="no"
3036                 LIBC="libc.so.6.1"
3037                 INTL="libc.so.6.1"
3038                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
3039                 libmono_ldflags="-lunwind"
3040                 ;;
3041         sparc*-*-*)
3042                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3043                    TARGET=SPARC64
3044                 else
3045                         TARGET=SPARC
3046                 fi
3047                 arch_target=sparc;
3048                 ACCESS_UNALIGNED="no"
3049                 case $host_os in
3050                   linux*) ;;
3051                   *)
3052                         LIBC="libc.so"
3053                         INTL="libintl.so"
3054                 esac
3055                 if test x"$GCC" = xyes; then
3056                         # We don't support v8 cpus
3057                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
3058                 fi
3059                 if test x"$AR" = xfalse; then
3060                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
3061                 fi
3062                 ;;
3063         *-mingw*|*-*-cygwin*)
3064                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
3065                 have_visibility_hidden=no
3066                 INTL="intl"
3067                 ;;
3068         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
3069         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
3070                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3071                         TARGET=POWERPC64;
3072                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
3073                         CFLAGS="$CFLAGS -mminimal-toc"
3074                 else
3075                         TARGET=POWERPC;
3076                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
3077                 fi
3078                 arch_target=ppc;
3079                 case $host_os in
3080                   linux*|darwin*)
3081                         ;;
3082                 esac
3083                 ;;
3084         armv7k-*-darwin*)
3085                 TARGET=ARM;
3086                 TARGET_SYS=WATCHOS
3087                 arch_target=arm;
3088                 arm_fpu=VFP_HARD
3089                 ACCESS_UNALIGNED="no"
3090                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3091                 ;;
3092
3093         arm*-darwin*)
3094                 TARGET=ARM;
3095                 arch_target=arm;
3096                 ACCESS_UNALIGNED="no"
3097                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3098                 ;;
3099         arm*-linux*)
3100                 TARGET=ARM;
3101                 arch_target=arm;
3102                 ACCESS_UNALIGNED="no"
3103                 AOT_SUPPORTED="yes"
3104                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3105                 ;;
3106         arm*-netbsd*-eabi*)
3107                 TARGET=ARM;
3108                 arch_target=arm;
3109                 ACCESS_UNALIGNED="no"
3110                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3111                 ;;
3112 # TODO: make proper support for NaCl host.
3113 #        arm*-*nacl)
3114 #               TARGET=ARM;
3115 #               arch_target=arm;
3116 #               ACCESS_UNALIGNED="no"
3117 #               AOT_SUPPORTED="no"
3118 #               ;;
3119         aarch64-*)
3120                 # https://lkml.org/lkml/2012/7/15/133
3121                 TARGET=ARM64
3122                 arch_target=arm64
3123                 boehm_supported=false
3124                 AOT_SUPPORTED="yes"
3125                 ;;
3126         s390x-*-linux*)
3127                 TARGET=S390X;
3128                 arch_target=s390x;
3129                 ACCESS_UNALIGNED="yes"
3130                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
3131                 ;;
3132 esac
3133
3134 HOST=$TARGET
3135
3136 if test "x$host" != "x$target"; then
3137    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
3138    enable_mcs_build=no
3139    case "$target" in
3140    arm*-darwin*)
3141                 TARGET=ARM;
3142                 arch_target=arm;
3143                 ACCESS_UNALIGNED="no"
3144                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3145                 # Can't use tls, since it depends on the runtime detection of tls offsets
3146                 # in mono-compiler.h
3147                 with_tls=pthread
3148                 case "$target" in
3149                 armv7k-*)
3150                         arm_fpu=VFP_HARD
3151                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
3152                         ;;
3153                 esac            
3154                 ;;
3155    powerpc64-ps3-linux-gnu)
3156                 TARGET=POWERPC64
3157                 arch_target=powerpc64
3158                 AC_DEFINE(TARGET_PS3, 1, [...])
3159                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3160                 # uses this define
3161                 AC_DEFINE(__mono_ppc64__, 1, [...])
3162                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3163                 sizeof_register=8
3164                 target_byte_order=G_BIG_ENDIAN
3165                 ;;
3166    powerpc64-xbox360-linux-gnu)
3167                 TARGET=POWERPC64
3168                 arch_target=powerpc64
3169                 AC_DEFINE(TARGET_XBOX360, 1, [...])
3170                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3171                 # uses this define
3172                 sizeof_register=8
3173                 target_byte_order=G_BIG_ENDIAN
3174                 ;;
3175    x86_64-*-nacl)
3176                 TARGET=AMD64
3177                 arch_target=amd64
3178                 AC_DEFINE(TARGET_AMD64, 1, [...])
3179                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3180                 sizeof_register=8
3181                 ;;
3182 # TODO: make proper support for NaCl target.
3183 #   arm*-*nacl)
3184 #               TARGET=ARM
3185 #               arch_target=arm
3186 #               AC_DEFINE(TARGET_ARM, 1, [...])
3187 #               ACCESS_UNALIGNED="no"
3188 #               sizeof_register=4
3189 #               CPPFLAGS="$CPPFLAGS \
3190 #                    -D__ARM_EABI__ \
3191 #                    -D__arm__ \
3192 #                    -D__portable_native_client__ \
3193 #                    -Dtimezone=_timezone \
3194 #                    -DDISABLE_SOCKETS \
3195 #                    -DDISABLE_ATTACH \
3196 #                    -DUSE_NEWLIB"
3197                 # Can't use tls, since it depends on the runtime detection of tls offsets
3198                 # in mono-compiler.h
3199 #               with_tls=pthread
3200 #               ;;
3201    i686-*-nacl)
3202                 TARGET=X86
3203                 arch_target=x86
3204                 AC_DEFINE(TARGET_X86, 1, [...])
3205                 sizeof_register=4
3206                 ;;
3207    arm*-linux-*)
3208                 TARGET=ARM;
3209                 arch_target=arm;
3210                 AC_DEFINE(TARGET_ARM, 1, [...])
3211                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3212                 ACCESS_UNALIGNED="no"
3213                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3214                 # Can't use tls, since it depends on the runtime detection of tls offsets
3215                 # in mono-compiler.h
3216                 with_tls=pthread
3217                 target_mach=no
3218                 case "$target" in
3219                 armv7l-unknown-linux-gnueabi*)
3220                         # TEGRA
3221                         CPPFLAGS="$CPPFLAGS"
3222                         ;;
3223                 armv5-*-linux-androideabi*)
3224                         CPPFLAGS="$CPPFLAGS"
3225                         ;;
3226                 esac
3227                 ;;
3228    arm*-netbsd*-eabi*)
3229                 TARGET=ARM;
3230                 arch_target=arm;
3231                 AC_DEFINE(TARGET_ARM, 1, [...])
3232                 ACCESS_UNALIGNED="no"
3233                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3234                 # Can't use tls, since it depends on the runtime detection of tls offsets
3235                 # in mono-compiler.h
3236                 with_tls=pthread
3237                 target_mach=no
3238                 ;;
3239    i686*-linux-*)
3240                 TARGET=X86;
3241                 arch_target=x86;
3242                 AC_DEFINE(TARGET_X86, 1, [...])
3243                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3244                 CPPFLAGS="$CPPFLAGS"
3245                 # Can't use tls, since it depends on the runtime detection of tls offsets
3246                 # in mono-compiler.h            
3247                 with_tls=pthread
3248                 target_mach=no
3249                 ;;
3250    x86_64*-linux-*)
3251                 TARGET=AMD64;
3252                 arch_target=amd64;
3253                 AC_DEFINE(TARGET_AMD64, 1, [...])
3254                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3255                 CPPFLAGS="$CPPFLAGS"
3256                 # Can't use tls, since it depends on the runtime detection of tls offsets
3257                 # in mono-compiler.h
3258                 with_tls=pthread
3259                 target_mach=no
3260                 ;;
3261    x86_64-ps4-freebsd)
3262                 TARGET=AMD64;
3263                 arch_target=amd64;
3264                 AC_DEFINE(TARGET_AMD64, 1, [...])
3265                 AC_DEFINE(TARGET_PS4, 1, [...])
3266                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
3267                 CPPFLAGS="$CPPFLAGS"
3268                 # Can't use tls, since it depends on the runtime detection of tls offsets
3269                 # in mono-compiler.h
3270                 with_tls=pthread
3271                 target_mach=no
3272                 target_win32=no
3273                 ;;
3274    aarch64*-linux-*)
3275                 TARGET=ARM64;
3276                 arch_target=arm64;
3277                 AC_DEFINE(TARGET_ARM64, 1, [...])
3278                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3279                 CPPFLAGS="$CPPFLAGS"
3280                 # Can't use tls, since it depends on the runtime detection of tls offsets
3281                 # in mono-compiler.h
3282                 with_tls=pthread
3283                 target_mach=no
3284                 ;;
3285         aarch64-*)
3286                 TARGET=ARM64
3287                 ;;
3288         *)
3289                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
3290         esac
3291 fi
3292
3293 case "$TARGET" in
3294 X86)
3295         AC_DEFINE(TARGET_X86, 1, [...])
3296         ;;
3297 AMD64)
3298         AC_DEFINE(TARGET_AMD64, 1, [...])
3299         ;;
3300 ARM)
3301         AC_DEFINE(TARGET_ARM, 1, [...])
3302         ;;
3303 ARM64)
3304         AC_DEFINE(TARGET_ARM64, 1, [...])
3305         ;;
3306 POWERPC)
3307         AC_DEFINE(TARGET_POWERPC, 1, [...])
3308         ;;
3309 POWERPC64)
3310         AC_DEFINE(TARGET_POWERPC, 1, [...])
3311         AC_DEFINE(TARGET_POWERPC64, 1, [...])
3312         ;;
3313 S390X)
3314         AC_DEFINE(TARGET_S390X, 1, [...])
3315         ;;
3316 MIPS)
3317         AC_DEFINE(TARGET_MIPS, 1, [...])
3318         ;;
3319 IA64)
3320         AC_DEFINE(TARGET_IA64, 1, [...])
3321         ;;
3322 SPARC)
3323         AC_DEFINE(TARGET_SPARC, 1, [...])
3324         ;;
3325 SPARC64)
3326         AC_DEFINE(TARGET_SPARC64, 1, [...])
3327         ;;
3328 esac
3329
3330 case "$HOST" in
3331 X86)
3332         AC_DEFINE(HOST_X86, 1, [...])
3333         ;;
3334 AMD64)
3335         AC_DEFINE(HOST_AMD64, 1, [...])
3336         ;;
3337 ARM)
3338         AC_DEFINE(HOST_ARM, 1, [...])
3339         ;;
3340 ARM64)
3341         AC_DEFINE(HOST_ARM64, 1, [...])
3342         ;;
3343 POWERPC)
3344         AC_DEFINE(HOST_POWERPC, 1, [...])
3345         ;;
3346 POWERPC64)
3347         AC_DEFINE(HOST_POWERPC, 1, [...])
3348         AC_DEFINE(HOST_POWERPC64, 1, [...])
3349         ;;
3350 S390X)
3351         AC_DEFINE(HOST_S390X, 1, [...])
3352         ;;
3353 MIPS)
3354         AC_DEFINE(HOST_MIPS, 1, [...])
3355         ;;
3356 IA64)
3357         AC_DEFINE(HOST_IA64, 1, [...])
3358         ;;
3359 SPARC)
3360         AC_DEFINE(HOST_SPARC, 1, [...])
3361         ;;
3362 SPARC64)
3363         AC_DEFINE(HOST_SPARC64, 1, [...])
3364         ;;
3365 esac
3366
3367
3368
3369 dnl *************
3370 dnl *** VTUNE ***
3371 dnl *************
3372
3373 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
3374 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
3375
3376 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
3377
3378 if test "x$enable_vtune" = "xyes"; then
3379         if test "x$with_vtune" = "x"; then
3380                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
3381         else
3382                 VTUNE_PATH=$with_vtune
3383         fi
3384         VTUNE_INCLUDE=$VTUNE_PATH/include
3385         case "$TARGET" in
3386         X86)
3387                 VTUNE_LIB=$VTUNE_PATH/lib32
3388                 ;;
3389         AMD64)
3390                 VTUNE_LIB=$VTUNE_PATH/lib64
3391                 ;;
3392         *)
3393                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
3394                 ;;
3395         esac
3396         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
3397                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
3398         fi
3399         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
3400                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
3401         fi
3402
3403         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
3404         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
3405
3406         AC_SUBST(VTUNE_LIBS)
3407         AC_SUBST(VTUNE_CFLAGS)
3408 fi
3409 dnl Use GCC atomic ops if they work on the target.
3410 if test x$GCC = "xyes"; then
3411         case $TARGET in
3412         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
3413                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
3414                 ;;
3415         esac
3416 fi
3417
3418 if test "x$target_mach" = "xyes"; then
3419
3420    if test "x$TARGET_SYS" = "xWATCHOS"; then
3421           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
3422           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3423           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3424    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
3425           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3426           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3427           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3428    else
3429        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
3430        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
3431        #error fail this for ios
3432        #endif
3433        return 0;
3434        ], [
3435                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
3436           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
3437           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
3438        ], [
3439           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3440           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3441           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3442        ])
3443         fi
3444    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
3445 fi
3446
3447 if test "x$sizeof_register" = "x4"; then
3448    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
3449 elif test "x$sizeof_register" = "x8"; then
3450    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
3451 else
3452    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
3453 fi
3454
3455 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
3456    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
3457 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
3458    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
3459 else
3460    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
3461 fi
3462
3463 if test "x$have_visibility_hidden" = "xyes"; then
3464    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
3465 fi
3466
3467 if test "x$have_deprecated" = "xyes"; then
3468    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
3469 fi
3470
3471 dnl 
3472 dnl Simple Generational checks (sgen)
3473 dnl
3474 SGEN_DEFINES=
3475 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
3476 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
3477 if test x$buildsgen = xyes; then
3478    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
3479    SGEN_DEFINES="-DHAVE_SGEN_GC"
3480
3481         conc_gc_msg=""
3482    if test x$with_sgen_default_concurrent != xno; then
3483        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
3484            conc_gc_msg=" (concurrent by default)"
3485    fi
3486
3487    if test "x$gc_msg" = "x"; then
3488       gc_msg="sgen$conc_gc_msg"
3489    else
3490       gc_msg="sgen$conc_gc_msg and $gc_msg"
3491    fi
3492 fi
3493 AC_SUBST(SGEN_DEFINES)
3494 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
3495
3496 jit_status="Building and using the JIT"
3497
3498 libsuffix=".so"
3499
3500 case "$host" in
3501      *-*-darwin*)
3502         libsuffix=".dylib"
3503         LIBC="libc.dylib"
3504         INTL="libintl.dylib"
3505         SQLITE="libsqlite.0.dylib"
3506         SQLITE3="libsqlite3.0.dylib"
3507         X11="libX11.dylib"
3508         GDKX11="libgdk-x11-2.0.dylib"
3509         GTKX11="libgtk-x11-2.0.dylib"
3510         ;;
3511      *-*-*netbsd*)
3512         LIBC="libc.so"
3513         INTL="libintl.so"
3514         SQLITE="libsqlite.so"
3515         SQLITE3="libsqlite3.so"
3516         ;;
3517      *-*-kfreebsd*-gnu)
3518         LIBC="libc.so.0.1"
3519         INTL="libc.so.0.1"
3520         X11="libX11.so.6"
3521         ;;
3522     *-*-*freebsd*)
3523         LIBC="libc.so.7"
3524         INTL="libintl.so"
3525         SQLITE="libsqlite.so"
3526         SQLITE3="libsqlite3.so"
3527         ;;
3528     *-*-*openbsd*)
3529         LIBC="libc.so"
3530         INTL="libintl.so"
3531         SQLITE="libsqlite.so"
3532         SQLITE3="libsqlite3.so"
3533         ;;
3534     *-*-*linux*)
3535         AC_PATH_X
3536         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
3537         AC_MSG_CHECKING(for the soname of libX11.so)
3538         for i in $x_libraries $dlsearch_path; do
3539                 for r in 4 5 6; do
3540                         if test -f $i/libX11.so.$r; then
3541                                 X11=libX11.so.$r
3542                                 AC_MSG_RESULT($X11)
3543                         fi
3544                 done
3545         done
3546         
3547         if test "x$X11" = "xlibX11.so"; then
3548                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
3549                 X11=libX11.so.6
3550         fi
3551         ;;
3552 esac
3553
3554
3555 AC_SUBST(libsuffix)
3556
3557 AC_ARG_WITH([libgdiplus],
3558         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3559         [], [with_libgdiplus=installed])
3560
3561 # default install location
3562 libgdiplus_install_loc=libgdiplus${libsuffix}
3563 case "$host" in
3564     *-*-*linux*)
3565     libgdiplus_install_loc=libgdiplus${libsuffix}.0
3566     ;;
3567 esac
3568
3569 case $with_libgdiplus in
3570     no|installed)
3571     libgdiplus_loc=
3572     ;;
3573
3574     yes|sibling)
3575     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3576     ;;
3577
3578     /*) # absolute path, assume it is an install location
3579     libgdiplus_loc=$with_libgdiplus
3580     libgdiplus_install_loc=$with_libgdiplus
3581     ;;
3582
3583     *)
3584     libgdiplus_loc=`pwd`/$with_libgdiplus
3585     ;;
3586 esac
3587 AC_SUBST([libgdiplus_loc])
3588 AC_SUBST([libgdiplus_install_loc])
3589
3590 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3591 if test "x$icall_symbol_map" = "xyes"; then
3592    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3593 fi
3594
3595 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3596 if test "x$icall_export" = "xyes"; then
3597    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3598 fi
3599
3600 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3601 if test "x$icall_tables" = "xno"; then
3602    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3603 fi
3604
3605 if test "x$with_tls" = "x__thread"; then
3606         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3607         # Pass the information to libgc
3608         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3609         AC_MSG_CHECKING(if the tls_model attribute is supported)
3610         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3611                 ], [
3612                         AC_MSG_RESULT(yes)
3613                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3614                 ], [
3615                         AC_MSG_RESULT(no)
3616         ])
3617 fi
3618
3619 if test ${TARGET} = ARM; then
3620         dnl ******************************************
3621         dnl *** Check to see what FPU is available ***
3622         dnl ******************************************
3623         AC_MSG_CHECKING(which FPU to use)
3624
3625         #
3626         # This is a bit tricky:
3627         #
3628         # if (__ARM_PCS_VFP) {
3629         #       /* mfloat-abi=hard == VFP with hard ABI */
3630         # } elif (!__SOFTFP__) {
3631         #       /* mfloat-abi=softfp == VFP with soft ABI */
3632         # } else {
3633         #       /* mfloat-abi=soft == no VFP */
3634         # }
3635         #
3636         # The exception is iOS (w/ GCC) where none of the above
3637         # are defined (but iOS always uses the 'softfp' ABI).
3638         #
3639         # No support for FPA.
3640         #
3641
3642         fpu=NONE
3643
3644         # iOS GCC always uses the 'softfp' ABI.
3645         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
3646                 fpu=VFP
3647         fi
3648
3649         # Are we using the 'hard' ABI?
3650         if test x$fpu = xNONE; then
3651                 AC_TRY_COMPILE([], [
3652                         #ifndef __ARM_PCS_VFP
3653                         #error "Float ABI is not 'hard'"
3654                         #endif
3655                         return 0;
3656                 ], [
3657                         fpu=VFP_HARD
3658                 ], [
3659                         fpu=NONE
3660                 ])
3661         fi
3662
3663         # No 'hard' ABI. 'soft' or 'softfp'?
3664         if test x$fpu = xNONE; then
3665                 AC_TRY_COMPILE([], [
3666                         #ifdef __SOFTFP__
3667                         #error "Float ABI is not 'softfp'"
3668                         #endif
3669                         return 0;
3670                 ], [
3671                         fpu=VFP
3672                 ], [
3673                         fpu=NONE
3674                 ])
3675         fi
3676
3677         if test x$arm_fpu != x; then
3678            fpu=$arm_fpu
3679         fi
3680
3681         AC_MSG_RESULT($fpu)
3682         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3683         unset fpu
3684
3685         dnl *********************************************
3686         dnl *** Check which ARM version(s) we can use ***
3687         dnl *********************************************
3688         AC_MSG_CHECKING(which ARM version to use)
3689
3690         AC_TRY_COMPILE([], [
3691                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3692                 #error Not on ARM v5.
3693                 #endif
3694                 return 0;
3695         ], [
3696                 arm_v5=yes
3697
3698                 arm_ver=ARMv5
3699         ], [])
3700
3701         AC_TRY_COMPILE([], [
3702                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3703                 #error Not on ARM v6.
3704                 #endif
3705                 return 0;
3706         ], [
3707                 arm_v5=yes
3708                 arm_v6=yes
3709
3710                 arm_ver=ARMv6
3711         ], [])
3712
3713         AC_TRY_COMPILE([], [
3714                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3715                 #error Not on ARM v7.
3716                 #endif
3717                 return 0;
3718         ], [
3719                 arm_v5=yes
3720                 arm_v6=yes
3721                 arm_v7=yes
3722
3723                 arm_ver=ARMv7
3724         ], [])
3725
3726         AC_MSG_RESULT($arm_ver)
3727
3728         if test x$arm_v5 = xyes; then
3729                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3730                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3731         fi
3732
3733         if test x$arm_v6 = xyes; then
3734                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3735                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3736         fi
3737
3738         if test x$arm_v7 = xyes; then
3739                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3740                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3741         fi
3742 fi
3743
3744 if test ${TARGET} = unknown; then
3745         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3746         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3747 fi
3748
3749 if test ${ACCESS_UNALIGNED} = no; then
3750         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3751 fi
3752
3753 case "x$libgc" in
3754         xincluded)
3755                 # Pass CPPFLAGS to libgc configure
3756                 # We should use a separate variable for this to avoid passing useless and
3757                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3758                 # This should be executed late so we pick up the final version of CPPFLAGS
3759                 # The problem with this approach, is that during a reconfigure, the main
3760                 # configure scripts gets invoked with these arguments, so we use separate
3761                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3762                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3763                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3764                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3765                 fi
3766                 # Don't pass -finstrument-for-thread-suspension in, 
3767                 # if these are instrumented it will be very bad news 
3768                 # (infinite recursion, undefined parking behavior, etc)
3769                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3770                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3771                 if test "x$support_boehm" = "xyes"; then
3772                         AC_CONFIG_SUBDIRS(libgc)
3773                 fi
3774                 ;;
3775 esac
3776
3777 MALLOC_MEMPOOLS=no
3778 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3779         if test x$with_malloc_mempools = xyes; then
3780                 MALLOC_MEMPOOLS=yes
3781                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3782         fi
3783 ])
3784
3785
3786 DISABLE_MCS_DOCS=default
3787 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3788         if test x$with_mcs_docs != xyes; then
3789                 DISABLE_MCS_DOCS=yes
3790         fi
3791 ])
3792 if test -n "$INSTALL_4_x_TRUE"; then :
3793         DISABLE_MCS_DOCS=yes
3794 fi
3795 if test "x$DISABLE_MCS_DOCS" = "xdefault"; then
3796    DISABLE_MCS_DOCS=$DISABLE_MCS_DOCS_default
3797 fi
3798
3799 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
3800         if test x$with_lazy_gc_thread_creation != xno ; then
3801                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3802         fi
3803 ], [with_lazy_gc_thread_creation=no])
3804
3805 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])
3806
3807 if test x$with_cooperative_gc = xdefault; then
3808         with_cooperative_gc=$with_cooperative_gc_default
3809 fi
3810
3811 if test x$with_cooperative_gc != xno; then
3812         AC_DEFINE(USE_COOP_GC,1,[Enable cooperative stop-the-world garbage collection.])
3813 fi
3814
3815 AM_CONDITIONAL([ENABLE_COOP], [test x$with_cooperative_gc != xno])
3816
3817 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],[
3818
3819         if test x$enable_checked_build != x ; then
3820                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
3821         fi
3822         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
3823                 eval "mono_checked_build_test_enable_$feature='yes'"
3824         done
3825
3826         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
3827                 eval "mono_checked_build_test_enable_gc='yes'"
3828                 eval "mono_checked_build_test_enable_metadata='yes'"
3829                 eval "mono_checked_build_test_enable_thread='yes'"
3830         fi
3831
3832         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
3833                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
3834         fi
3835
3836         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
3837                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
3838         fi
3839
3840         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
3841                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
3842         fi
3843
3844 ], [])
3845
3846 AC_CHECK_HEADER([malloc.h], 
3847                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
3848                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3849
3850 if test x"$GCC" = xyes; then
3851         # Implicit function declarations are not 64 bit safe
3852         # Do this late, since this causes lots of configure tests to fail
3853         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3854         # jay has a lot of implicit declarations
3855         JAY_CFLAGS="-Wno-implicit-function-declaration"
3856 fi
3857
3858 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3859 # instead of libmono-static.a
3860 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3861    LIBMONO_LA=libmini-static.la
3862 else
3863    if test x$buildsgen = xyes; then
3864       LIBMONO_LA=libmonosgen-$API_VER.la
3865    else
3866       LIBMONO_LA=libmonoboehm-$API_VER.la
3867    fi
3868 fi
3869 AC_SUBST(LIBMONO_LA)
3870
3871 if test x$DISABLE_MCS_DOCS = xyes; then
3872    docs_dir=""
3873 else
3874    docs_dir=docs
3875 fi
3876 AC_SUBST(docs_dir)
3877
3878 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
3879 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
3880
3881 libmono_ldflags="$libmono_ldflags $LIBS"
3882
3883 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
3884 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
3885 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
3886 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
3887 AM_CONDITIONAL(X86, test x$TARGET = xX86)
3888 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
3889 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
3890 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
3891 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
3892 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
3893 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
3894 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
3895 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
3896 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
3897 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
3898 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
3899 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
3900 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
3901
3902 AC_SUBST(LIBC)
3903 AC_SUBST(INTL)
3904 AC_SUBST(SQLITE)
3905 AC_SUBST(SQLITE3)
3906 AC_SUBST(X11)
3907 AC_SUBST(GDKX11)
3908 AC_SUBST(GTKX11)
3909 AC_SUBST(XINERAMA)
3910 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
3911 AC_SUBST(arch_target)
3912 AC_SUBST(CFLAGS)
3913 AC_SUBST(CPPFLAGS)
3914 AC_SUBST(LDFLAGS)
3915
3916 #This must always be defined when building the runtime
3917 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
3918
3919 mono_build_root=`pwd`
3920 AC_SUBST(mono_build_root)
3921
3922 mono_runtime=mono/mini/mono
3923 AC_SUBST(mono_runtime)
3924
3925 mono_cfg_root=$mono_build_root/runtime
3926 if test x$host_win32 = xyes; then
3927   if test "x$cross_compiling" = "xno"; then
3928     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
3929   else
3930     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
3931   fi
3932 else
3933   mono_cfg_dir=$mono_cfg_root/etc
3934 fi
3935 AC_SUBST(mono_cfg_dir)
3936
3937 AC_CONFIG_FILES([po/mcs/Makefile.in])
3938
3939 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
3940 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
3941
3942 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
3943 [   depth=../../../..
3944     case $srcdir in
3945     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3946     .) reldir=$depth ;;
3947     *) reldir=$depth/$srcdir ;;
3948     esac
3949     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
3950     cd runtime/etc/mono/1.0
3951     rm -f machine.config
3952     $LN_S $reldir/data/net_1_1/machine.config machine.config
3953     cd $depth
3954 ],[LN_S='$LN_S'])
3955
3956 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
3957 [   depth=../../../..
3958     case $srcdir in
3959     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3960     .) reldir=$depth ;;
3961     *) reldir=$depth/$srcdir ;;
3962     esac
3963     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3964     cd runtime/etc/mono/2.0
3965     rm -f machine.config
3966     $LN_S $reldir/data/net_2_0/machine.config machine.config
3967     cd $depth
3968 ],[LN_S='$LN_S'])
3969
3970 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
3971 [   depth=../../../..
3972     case $srcdir in
3973     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3974     .) reldir=$depth ;;
3975     *) reldir=$depth/$srcdir ;;
3976     esac
3977     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
3978     cd runtime/etc/mono/2.0
3979     rm -f web.config
3980     $LN_S $reldir/data/net_2_0/web.config web.config
3981     cd $depth
3982 ],[LN_S='$LN_S'])
3983
3984 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
3985 [   depth=../../..
3986     case $srcdir in
3987     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
3988     .) reldir=$depth ;;
3989     *) reldir=$depth/$srcdir ;;
3990     esac
3991     $ac_aux_dir/install-sh -d runtime/etc/mono/
3992     cd runtime/etc/mono/
3993     rm -f browscap.ini
3994     $LN_S $reldir/data/browscap.ini browscap.ini
3995     cd $depth
3996 ],[LN_S='$LN_S'])
3997
3998 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
3999 [   depth=../../../../..
4000     case $srcdir in
4001     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4002     .) reldir=$depth ;;
4003     *) reldir=$depth/$srcdir ;;
4004     esac
4005     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
4006     cd runtime/etc/mono/2.0/Browsers
4007     rm -f Compat.browser
4008     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4009     cd $depth
4010 ],[LN_S='$LN_S'])
4011
4012 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
4013 [   depth=../../../../..
4014     case $srcdir in
4015     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4016     .) reldir=$depth ;;
4017     *) reldir=$depth/$srcdir ;;
4018     esac
4019     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
4020     cd runtime/etc/mono/4.0/Browsers
4021     rm -f Compat.browser
4022     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4023     cd $depth
4024 ],[LN_S='$LN_S'])
4025
4026 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
4027 [   depth=../../../../..
4028     case $srcdir in
4029     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4030     .) reldir=$depth ;;
4031     *) reldir=$depth/$srcdir ;;
4032     esac
4033     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
4034     cd runtime/etc/mono/4.5/Browsers
4035     rm -f Compat.browser
4036     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4037     cd $depth
4038 ],[LN_S='$LN_S'])
4039
4040 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
4041 [   depth=../../../..
4042     case $srcdir in
4043     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4044     .) reldir=$depth ;;
4045     *) reldir=$depth/$srcdir ;;
4046     esac
4047     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4048     cd runtime/etc/mono/4.0
4049     rm -f machine.config
4050     $LN_S $reldir/data/net_4_0/machine.config machine.config
4051     cd $depth
4052 ],[LN_S='$LN_S'])
4053
4054 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
4055 [   depth=../../../..
4056     case $srcdir in
4057     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4058     .) reldir=$depth ;;
4059     *) reldir=$depth/$srcdir ;;
4060     esac
4061     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4062     cd runtime/etc/mono/4.0
4063     rm -f web.config
4064     $LN_S $reldir/data/net_4_0/web.config web.config
4065     cd $depth
4066 ],[LN_S='$LN_S'])
4067
4068 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
4069 [   depth=../../../..
4070     case $srcdir in
4071     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4072     .) reldir=$depth ;;
4073     *) reldir=$depth/$srcdir ;;
4074     esac
4075     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4076     cd runtime/etc/mono/4.5
4077     rm -f machine.config
4078     $LN_S $reldir/data/net_4_5/machine.config machine.config
4079     cd $depth
4080 ],[LN_S='$LN_S'])
4081
4082 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
4083 [   depth=../../../..
4084     case $srcdir in
4085     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4086     .) reldir=$depth ;;
4087     *) reldir=$depth/$srcdir ;;
4088     esac
4089     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4090     cd runtime/etc/mono/4.5
4091     rm -f web.config
4092     $LN_S $reldir/data/net_4_5/web.config web.config
4093     cd $depth
4094 ],[LN_S='$LN_S'])
4095
4096 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])
4097 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])
4098
4099 AC_OUTPUT([
4100 Makefile
4101 mono-uninstalled.pc
4102 acceptance-tests/Makefile
4103 llvm/Makefile
4104 scripts/mono-find-provides
4105 scripts/mono-find-requires
4106 mono/Makefile
4107 mono/utils/Makefile
4108 mono/metadata/Makefile
4109 mono/dis/Makefile
4110 mono/cil/Makefile
4111 mono/arch/Makefile
4112 mono/arch/x86/Makefile
4113 mono/arch/amd64/Makefile
4114 mono/arch/ppc/Makefile
4115 mono/arch/sparc/Makefile
4116 mono/arch/s390x/Makefile
4117 mono/arch/arm/Makefile
4118 mono/arch/arm64/Makefile
4119 mono/arch/ia64/Makefile
4120 mono/arch/mips/Makefile
4121 mono/sgen/Makefile
4122 mono/tests/Makefile
4123 mono/tests/tests-config
4124 mono/tests/assemblyresolve/Makefile
4125 mono/tests/gc-descriptors/Makefile
4126 mono/unit-tests/Makefile
4127 mono/benchmark/Makefile
4128 mono/io-layer/Makefile
4129 mono/mini/Makefile
4130 mono/profiler/Makefile
4131 m4/Makefile
4132 ikvm-native/Makefile
4133 scripts/Makefile
4134 man/Makefile
4135 docs/Makefile
4136 data/Makefile
4137 data/net_2_0/Makefile
4138 data/net_4_0/Makefile
4139 data/net_4_5/Makefile
4140 data/net_2_0/Browsers/Makefile
4141 data/net_4_0/Browsers/Makefile
4142 data/net_4_5/Browsers/Makefile
4143 data/mint.pc
4144 data/mono-2.pc
4145 data/monosgen-2.pc
4146 data/mono.pc
4147 data/mono-cairo.pc
4148 data/mono-nunit.pc
4149 data/mono-options.pc
4150 data/mono-lineeditor.pc
4151 data/monodoc.pc
4152 data/dotnet.pc
4153 data/dotnet35.pc
4154 data/wcf.pc
4155 data/cecil.pc
4156 data/system.web.extensions_1.0.pc
4157 data/system.web.extensions.design_1.0.pc
4158 data/system.web.mvc.pc
4159 data/system.web.mvc2.pc
4160 data/system.web.mvc3.pc
4161 data/aspnetwebstack.pc
4162 data/reactive.pc
4163 samples/Makefile
4164 support/Makefile
4165 data/config
4166 tools/Makefile
4167 tools/locale-builder/Makefile
4168 tools/sgen/Makefile
4169 tools/monograph/Makefile
4170 tools/pedump/Makefile
4171 runtime/Makefile
4172 msvc/Makefile
4173 po/Makefile
4174 ])
4175
4176 # Update all submodules recursively to ensure everything is checked out
4177 $srcdir/scripts/update_submodules
4178
4179 if test x$host_win32 = xyes; then
4180    # Get rid of 'cyg' prefixes in library names
4181    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4182    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
4183    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
4184    # executable doesn't work...
4185    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4186 fi
4187
4188 if test x$host_darwin = xyes; then
4189    # This doesn't seem to be required and it slows down parallel builds
4190    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
4191 fi
4192
4193 (
4194   case $prefix in
4195   NONE) prefix=$ac_default_prefix ;;
4196   esac
4197   case $exec_prefix in
4198   NONE) exec_prefix='${prefix}' ;;
4199   esac
4200
4201   #
4202   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
4203   # any existing config.make.  This allows people to share the same source tree
4204   # with different build directories, one native and one cross
4205   #
4206   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
4207
4208     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
4209
4210     echo "prefix=$prefix" > $mcs_topdir/build/config.make
4211     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
4212     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
4213     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
4214     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
4215     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
4216     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
4217     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
4218
4219     case $INSTALL in
4220     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
4221     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
4222     esac
4223
4224     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
4225
4226     export VERSION
4227     [myver=$($AWK 'BEGIN {
4228       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
4229       if(length(vsplit [1]) > 4) {
4230         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
4231       }
4232       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
4233     }')]
4234
4235     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
4236
4237     if test x$host_darwin = xyes; then
4238       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
4239     fi
4240
4241     if test "x$PLATFORM_AOT_SUFFIX" != "x"; then
4242       echo "PLATFORM_AOT_SUFFIX = $PLATFORM_AOT_SUFFIX" >> $mcs_topdir/build/config.make
4243     fi
4244
4245         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
4246            enable_system_aot=yes
4247         fi
4248
4249     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
4250       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
4251     fi
4252
4253     if test x$DISABLE_MCS_DOCS = xyes; then
4254       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
4255     fi
4256
4257     if test x$has_extension_module != xno; then
4258         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
4259     fi
4260     
4261     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
4262     
4263     if test "x$test_bcl_opt" = "xyes"; then    
4264       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
4265     fi
4266
4267     if test "x$AOT_BUILD_FLAGS" != "x" ; then
4268       echo "AOT_RUN_FLAGS=$AOT_RUN_FLAGS" >> $srcdir/$mcsdir/build/config.make
4269       echo "AOT_BUILD_FLAGS=$AOT_BUILD_FLAGS" >> $srcdir/$mcsdir/build/config.make
4270     fi
4271
4272   fi
4273
4274 )
4275
4276 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
4277
4278 echo "
4279         mcs source:    $mcsdir
4280
4281    Engine:
4282         Host:          $host
4283         Target:        $target
4284         GC:            $gc_msg 
4285         TLS:           $with_tls
4286         SIGALTSTACK:   $with_sigaltstack
4287         Engine:        $jit_status
4288         BigArrays:     $enable_big_arrays
4289         DTrace:        $enable_dtrace
4290         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
4291
4292    Libraries:
4293         .NET 4.x:        $with_profile4_x
4294         Xamarin.Android: $with_monodroid
4295         Xamarin.iOS:     $with_monotouch
4296         Xamarin.WatchOS: $with_monotouch_watch
4297         Xamarin.TVOS:    $with_monotouch_tv
4298         Xamarin.Mac:     $with_xammac
4299         mobile_static:   $with_mobile_static
4300         JNI support:     $jdk_headers_found
4301         libgdiplus:      $libgdiplus_msg
4302         zlib:            $zlib_msg
4303         $disabled
4304 "
4305 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
4306    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
4307 fi