Add AggressiveInlining to Single.GetHashCode (dotnet/coreclr#25633)
[mono-project.git] / configure.ac
blob785fc876218392ce7ab5e991acdeb15c9e0413c0
1 # Process this file with autoconf to produce a configure script.
2 #AC_PREREQ([2.62])
4 # This line is parsed by tools besides autoconf, such as msvc/mono.winconfig.targets.
5 # It should remain in the format they expect.
7 AC_INIT(mono, [6.5.0],
8         [https://github.com/mono/mono/issues/new])
10 AC_CONFIG_SRCDIR([README.md])
11 AC_CONFIG_MACRO_DIR([m4])
12 AC_CANONICAL_SYSTEM
13 AC_CANONICAL_HOST
15 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
16 # The extra brackets are to foil regex-based scans.
17 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
19 AM_INIT_AUTOMAKE([1.9 dist-xz tar-ustar no-dist-gzip foreign subdir-objects]
20                  m4_esyscmd([case `automake --version | head -n 1` in    # parallel-tests is default in automake 1.13+, we need to explicitly enable it
21                              *1.11*|*1.12*) echo parallel-tests;;        # for 1.11 and 1.12 but not below as those versions don't recognize the flag
22                              esac]))                                     # TODO: remove this hack once we require automake 1.11+
24 AC_CONFIG_HEADERS([config.h])
25 AM_MAINTAINER_MODE
26 m4_ifdef([AM_EXTRA_RECURSIVE_TARGETS], AM_EXTRA_RECURSIVE_TARGETS([test]))
27 m4_ifdef([AM_EXTRA_RECURSIVE_TARGETS], AM_EXTRA_RECURSIVE_TARGETS([test-bundle]))
29 API_VER=2.0
30 AC_SUBST(API_VER)
32 AC_PROG_LN_S
34 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
36 MONO_VERSION_MAJOR=`echo $VERSION | cut -d . -f 1`
37 MONO_VERSION_MINOR=`echo $VERSION | cut -d . -f 2`
38 MONO_VERSION_BUILD=`echo $VERSION | cut -d . -f 3`
41 # This is the version of the corlib-runtime interface. When
42 # making changes to this interface (by changing the layout
43 # of classes the runtime knows about, changing icall signature or
44 # semantics etc), change this variable.
46 # This must be unique relative to corlib interface and semantics.
48 # If you change corlib such that a runtime change is required, or
49 # vice versa, change this string. Examples include removing icalls,
50 # adding icalls, changing icall signatures, and changing type layouts
51 # that both sides know.
53 # It is an arbitrary string and should be parsed as such.
54 # A guid works and is encouraged.
56 # Generate it with uuidgen. For example:
57 # perl -pi.bak -e "s/^MONO_CORLIB_VERSION=\S+/MONO_CORLIB_VERSION=`uuidgen`/" configure.ac
59 # There is no ordering of corlib versions, no old or new,
60 # an exact match is required between corlib and runtime.
62 # This line is parsed by tools besides autoconf, such as msvc/mono.winconfig.targets.
63 # It should remain in the format they expect.
65 MONO_CORLIB_VERSION=a3d6fce2-2790-4089-9543-34eb239e2b04
68 # Put a quoted #define in config.h.
69 # Substitute @MONO_CORLIB_VERSION@ unquoted.
71 AC_DEFINE_UNQUOTED(MONO_CORLIB_VERSION,"$MONO_CORLIB_VERSION",[Version of the corlib-runtime interface])
72 AC_SUBST(MONO_CORLIB_VERSION)
74 case $host_os in
75 *cygwin* )
76                  echo "Run configure using ./configure --host=i686-w64-mingw32 or --host=x86_64-w64-mingw32"
77                  exit 1
78 esac
80 # In case of cygwin, override LN_S, irrespective of what it determines.
81 # The build uses cygwin, but the actual runtime doesn't.
82 case $host_os in
83 *cygwin* ) LN_S='cp -p';;
84 esac
87 # libgc defaults
89 libgc_configure_args=
91 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
92 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
93 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
94 CFLAGS_FOR_LIBGC=$CFLAGS
95 CPPFLAGS_FOR_BTLS=$CPPFLAGS
96 CFLAGS_FOR_BTLS=$CFLAGS
98 # libgc uses some deprecated APIs
99 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
102 # These are the flags that need to be stored in the mono.pc file for 
103 # compiling code that will embed Mono
105 libmono_cflags=""
106 libmono_ldflags=""
107 AC_SUBST(libmono_cflags)
108 AC_SUBST(libmono_ldflags)
110 # Variable to have relocatable .pc files (lib, or lib64)
111 # realpath isn't always available, and requires that all but the tip of the provided
112 # path exists. Fall back to the old behaviour, but realpath allows depth >1
113 # e.g. Debian puts Mono in /usr/bin and libs in /usr/lib/x86_64-linux-gnu/ which is
114 # too deep for the old method to work
115 reloc_libdir=`realpath --relative-to=${prefix} ${libdir} 2> /dev/null || basename ${libdir}`
116 AC_SUBST(reloc_libdir)
118 # Set to yes if Unix sockets cannot be created in an anonymous namespace
119 need_link_unlink=no
121 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
122 extra_runtime_ldflags=""
124 # Thread configuration inspired by sleepycat's db
125 AC_MSG_CHECKING([host platform characteristics])
127 libgc_threads=no
128 has_dtrace=no
129 parallel_mark=yes
130 ikvm_native=yes
132 host_win32=no
133 target_win32=no
134 target_wasm=no
135 platform_android=no
136 platform_tizen=no
137 platform_ios=no
138 host_darwin=no
139 host_linux=no
141 case "$host" in
142         wasm32*)
143                 CFLAGS="$CFLAGS -D_REENTRANT -D_GNU_SOURCE -s WASM=1"
144                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DUSE_MMAP -s WASM=1"
145                 libdl="-ldl"
146                 libgc_threads=pthreads
147                 platform_wasm=yes
148                 ;;
149         *-mingw*|*-*-cygwin*)
150                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
151                 AC_DEFINE(HOST_NO_SYMLINKS,1,[This platform does not support symlinks])
152                 host_win32=yes
153                 mono_cv_clang=no
154                 if test "x$cross_compiling" = "xno"; then
155                         if test "x$host" = "x$build" -a "x$host" = "x$target"; then
156                                 target_win32=yes
157                         fi
158                 else
159                         if test "x$host" = "x$target"; then
160                                 target_win32=yes
161                         fi
162                 fi
163                 HOST_CC="gcc"
164                 RID="win-x86"
165                 CORETARGETS="-p:TargetsWindows=true"
166                 COREARCH="x86"
167                 # Boehm not supported on 64-bit Windows.
168                 case "$host" in
169                 x86_64-*-* | amd64-*-*)
170                         support_boehm=no
171                         with_gc=sgen
172                         RID="win-x64"
173                         COREARCH="x64"
174                         ;;
175                 esac
177                 # Windows 7 or later is required
178                 WIN32_CPPFLAGS="-DWINVER=0x0601 -D_WIN32_WINNT=0x0601 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
179                 CPPFLAGS="$CPPFLAGS $WIN32_CPPFLAGS"
180                 WIN32_LDFLAGS="-lbcrypt -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi -static-libgcc"
181                 LDFLAGS="$LDFLAGS $WIN32_LDFLAGS"
182                 libmono_cflags="-mms-bitfields -mwindows"
183                 libmono_ldflags="-mms-bitfields -mwindows"
184                 libdl=
185                 libgc_threads=win32
186                 with_sigaltstack=no
187                 with_tls=pthread
188                 with_sgen_default_concurrent=yes
189                 LN_S=cp
191                 # This forces libgc to use the DllMain based thread registration code on win32
192                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
193                 ;;
194         *-*-*netbsd*)
195                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
196                 libmono_cflags="-D_REENTRANT"
197                 LDFLAGS="$LDFLAGS -pthread"
198                 CPPFLAGS="$CPPFLAGS -DHOST_BSD"
199                 libmono_ldflags="-pthread"
200                 need_link_unlink=yes
201                 libdl="-ldl"
202                 libgc_threads=pthreads
203                 with_sigaltstack=no
204                 use_sigposix=yes
205                 with_sgen_default_concurrent=yes
206                 ;;
207         *-*-kfreebsd*-gnu)
208                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
209                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
210                 libmono_ldflags="-lpthread -pthread"
211                 libdl="-ldl"
212                 libgc_threads=pthreads
213                 need_link_unlink=yes
214                 with_sigaltstack=no
215                 use_sigposix=yes
216                 with_sgen_default_concurrent=yes
217                 ;;
218         *-*-*freebsd*)
219                 dnl For close_my_fds
220                 LDFLAGS="$LDFLAGS -lutil"
221                 if test "x$PTHREAD_CFLAGS" = "x"; then
222                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
223                         libmono_cflags=
224                 else
225                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
226                         libmono_cflags="$PTHREAD_CFLAGS"
227                 fi
228                 if test "x$PTHREAD_LIBS" = "x"; then
229                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
230                         libmono_ldflags="-pthread"
231                 else
232                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
233                         libmono_ldflags="$PTHREAD_LIBS"
234                 fi
235                 CPPFLAGS="$CPPFLAGS -DHOST_BSD -D_WITH_GETLINE"
236                 need_link_unlink=yes
237                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
238                 libdl=
239                 libgc_threads=pthreads
240                 use_sigposix=yes
241                 has_dtrace=yes
242                 case "$host" in
243                 aarch64-*)
244                         support_boehm=no
245                         with_gc=sgen
246                         ;;
247                 riscv*)
248                         support_boehm=no
249                         with_gc=sgen
250                         ;;
251                 esac
252                 with_sgen_default_concurrent=yes
253                 ;;
254         *-*-*openbsd*)
255                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DHOST_BSD -D_REENTRANT -DUSE_MMAP"
256                 LDFLAGS="${LDFLAGS} -Wl,-zwxneeded"
257                 if test "x$disable_munmap" != "xyes"; then
258                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
259                 fi
260                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
261                 LDFLAGS="$LDFLAGS -pthread"
262                 need_link_unlink=yes
263                 AC_DEFINE(PTHREAD_POINTER_ID)
264                 libdl=
265                 libgc_threads=pthreads
266                 with_tls=pthread
267                 with_sigaltstack=no
268                 use_sigposix=yes
269                 with_sgen_default_concurrent=yes
270                 ;;
271         *-*-linux-android*)
272                 platform_android=yes
273                 AC_DEFINE(HOST_ANDROID,1,[Targeting the Android platform])
274                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
276                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
277                 if test "x$disable_munmap" != "xyes"; then
278                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
279                 fi
280                 libmono_cflags="-D_REENTRANT"
281                 libdl="-ldl"
282                 libgc_threads=pthreads
283                 use_sigposix=yes
285                 with_tls=pthread
286                 with_sigaltstack=no
287                 with_static_mono=no
289                 # Android doesn't support boehm, as it's missing <link.h>
290                 support_boehm=no
291                 with_gc=sgen
293                 # isinf(3) requires -lm
294                 LDFLAGS="$LDFLAGS -lm"
296                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
297                 # PAGE_SIZE; breaks mono/io-layer/collection.c
298                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
299                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
300                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
302                 # FIXME? Only if __ANDROID_API__ < 24?
303                 # FILE32API means "long", which is stuck at 32bits for 32bit ABI (64bits for 64bit ABI).
304                 # ABI 24 introduces the "o" for "file offset" variations, which can be widened to 64bits for 32bit ABI (and still 64bits for 64bit).
305                 # Android itself uses FILE32API, and mono should use system zlib on Android anyway.
306                 ZLIB_CFLAGS="$ZLIB_CFLAGS -DUSE_FILE32API"
308                 # to bypass the underscore linker check, can't work when cross-compiling
309                 mono_cv_uscore=yes
310                 mono_cv_clang=no
311                 ;;
312         *-*-linux*)
313                 host_linux=yes
314                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
315                 if test "x$disable_munmap" != "xyes"; then
316                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
317                 fi
318                 libmono_cflags="-D_REENTRANT"
319                 libdl="-ldl"
320                 libgc_threads=pthreads
321                 CORETARGETS="-p:TargetsUnix=true"
322                 use_sigposix=yes
323                 if test "x$cross_compiling" != "xno"; then
324                         # to bypass the underscore linker check, not
325                         # available during cross-compilation
326                         mono_cv_uscore=no
327                 fi
328                 case "$host" in
329                 *-tizen-linux-*)
330                         platform_tizen=yes
331                         ;;
332                 esac
333                 case "$host" in
334                 ppc64-*)
335                         RID="linux-ppc64"
336                         ;;
337                 ppc64le-*)
338                         RID="linux-ppc64el"
339                         ;;
340                 mipsel-*)
341                         RID="linux-mipsel"
342                         ;;
343                 x86-*)
344                         RID="linux-x86"
345                         COREARCH="x86"
346                         ;;
347                 x86_64-*)
348                         RID="linux-x64"
349                         COREARCH="x64"
350                         ;;
351                 arm-*)
352                         # deal with this in the FPU detection section, since
353                         # we cannot determine FPU from triplet and don't want
354                         # to duplicate the logic
355                         ;;
356                 aarch64-*)
357                         support_boehm=no
358                         with_gc=sgen
359                         RID="linux-arm64"
360                         COREARCH="arm64"
361                         ;;
362                 powerpc*-*-linux*)
363                         # https://bugzilla.novell.com/show_bug.cgi?id=504411
364                         disable_munmap=yes
365                         ;;
366                 riscv*)
367                         support_boehm=no
368                         with_gc=sgen
369                         ;;
370                 esac
371                 with_sgen_default_concurrent=yes
372                 ;;
373         *-*-nacl*)
374                 echo "nacl no longer supported."
375                 exit 1
376                 ;;
377         *-*-hpux*)
378                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
379                 # +ESdbgasm only valid on bundled cc on RISC
380                 # silently ignored for ia64
381                 if test $GCC != "yes"; then
382                         CFLAGS="$CFLAGS +ESdbgasm"
383                         # Arrange for run-time dereferencing of null
384                         # pointers to produce a SIGSEGV signal.
385                         LDFLAGS="$LDFLAGS -z"
386                 fi
387                 CFLAGS="$CFLAGS +ESdbgasm"
388                 LDFLAGS="$LDFLAGS -z"
389                 libmono_cflags="-D_REENTRANT"
390                 libmono_ldflags="-lpthread"
391                 libgc_threads=pthreads
392                 need_link_unlink=yes
393                 use_sigposix=yes
394                 ;;
395         *-*-solaris*)
396                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DHOST_SOLARIS"
397                 need_link_unlink=yes
398                 libmono_cflags="-D_REENTRANT"
399                 libgc_threads=pthreads
400                 has_dtrace=yes
401                 use_sigposix=yes
402                 enable_solaris_tar_check=yes
403                 ;;
404         *-*-darwin*)
405                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
406                 host_darwin=yes
407                 target_mach=yes
408                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_MACOSX_THREADS -DUSE_MMAP -DUSE_MUNMAP"
409                 libmono_cflags="-D_THREAD_SAFE"
410                 need_link_unlink=yes
411                 AC_DEFINE(PTHREAD_POINTER_ID)
412                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
413                 CORETARGETS="-p:TargetsUnix=true -p:TargetsOSX=true"
414                 libdl=
415                 libgc_threads=pthreads
416                 has_dtrace=yes
417                 if test "x$cross_compiling" = "xyes"; then
418                         has_broken_apple_cpp=yes
419                 fi
420                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
421                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
422                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
423                 case "$host" in
424                         dnl Snow Leopard and newer config.guess reports as this
425                         i*86-*-darwin*)
426                                 BROKEN_DARWIN_FLAGS="-arch i386"
427                                 BROKEN_DARWIN_CPPFLAGS=""
428                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
429                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
430                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
431                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
432                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
433                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
434                                 with_sgen_default_concurrent=yes
435                                 RID="osx-x86"
436                                 COREARCH="x86"
437                                 ;;
438                         x*64-*-darwin*)
439                                 with_sgen_default_concurrent=yes
440                                 RID="osx-x64"
441                                 COREARCH="x64"
442                                 ;;
443                         arm*-darwin*)
444                                 platform_ios=yes
445                                 has_dtrace=no
446                                 ;;
447                         aarch64*-darwin*)
448                                 platform_ios=yes
449                                 ;;
450                 esac
451                 ;;
452         *-*-haiku*)
453                 dnl BSD_SOURCE is for getifaddrs
454                 CPPFLAGS="$CPPFLAGS -D_BSD_SOURCE -D_REENTRANT -D_THREAD_SAFE"
455                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
456                 libdl=
457                 LIBS="$LIBS -lnetwork -ltextencoding"
458                 need_link_unlink=yes
459                 AC_DEFINE(PTHREAD_POINTER_ID)
460                 dnl Haiku does not support static TLS with __thread
461                 with_tls=pthread
462                 libgc_threads=pthreads
463                 use_sigposix=yes
464                 with_sigaltstack=no
465                 ;;
466         *-*-fuchsia*)
467                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
468                 AC_DEFINE(HOST_FUCHSIA,1,[Targeting the Fuchsia platform])
469                 fuchsia=true
470                 with_tls=pthread
471                 with_sigaltstack=yes
472                 with_static_mono=no
473                 support_boehm=no
474                 with_gc=sgen
475                 mono_cv_uscore=yes
476                 mono_cv_clang=no
477                 ;;
478         *-*-aix*|*-*-os400*)
479                 dnl IMPORTANT: For svr4 sonames on AIX, you should set
480                 dnl `OBJECT_MODE=64` when configuring.
481                 dnl libtool cannot generate functioning svr4 sonames on
482                 dnl 64-bit without it.
483                 dnl Unfortunately, everything is complicated by the fact that
484                 dnl gcc doesn't respect this variable. (otherwise we could set
485                 dnl it for build time for configure and make)
486                 dnl On IBM i PASE using IBM's packages, GCC *does* respect this
487                 dnl variable, and builds are 64-bit by default. svr4 sonames
488                 dnl must still be specified when configuring on i, however.
489                 dnl As such, because Mono doesn't support 32-bit AIX or PASE,
490                 dnl set up a 64-bit build (assming GCC; XLC not supported)
491                 dnl regardless of what variable is used.
492                 case $host_os in
493                         aix*)
494                         if test "x$OBJECT_MODE" = "x64" && test "x$CC" = "x" && test "x$CXX" = "x"; then
495                                 dnl HACK: Set -maix64 at the GCC invocation
496                                 dnl level explicitly to work around the fact
497                                 dnl GCC in default maix32 mode explodes when
498                                 dnl binutils respects OBJECT_MODE.
499                                 dnl When that check occurs, flags are not
500                                 dnl passed to to the compiler, so GCC has no
501                                 dnl chance to change its mode.
502                                 dnl Otherwise, it may enter a state where it
503                                 dnl runs, but uses the libtool "compile"
504                                 dnl wrapper, which subtly breaks other things.
505                                 dnl This should propagate to all uses of CC.
506                                 dnl This is only set if not manually set.
507                                 CC="gcc -maix64"
508                                 CXX="g++ -maix64"
509                                 echo
510                         fi
511                         ;;
512                         dnl Not needed on i because it defaults to 64-bit and
513                         dnl has a GCC smart enough to respect OBJECT_MODE.
514                 esac
515                 dnl We still set this for *FLAGS, however, because we may not
516                 dnl be setting OBJECT_MODE.
517                 LDFLAGS="$LDFLAGS -maix64"
518                 CPPFLAGS="$CPPFLAGS -maix64 -DGC_AIX_THREADS -D_ALL_SOURCE -D_THREAD_SAFE -D_LARGE_FILES -D_REENTRANT"
519                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
520                 dnl Would you believe GNU nm doesn't know how to process AIX libraries?
521                 dnl Hardcode IBM binutils in case GNU ones end up on our path. Also
522                 dnl specifiy 64-bit mode for tools. (OBJECT_MODE is finicky with cmake.)
523                 dnl XXX: We should stop the hardcoding madness
524                 AR="/usr/bin/ar -X64"
525                 NM="/usr/bin/nm -X64"
526                 STRIP="/usr/bin/strip -X64"
527                 RANLIB="/usr/bin/ranlib -X64"
528                 dnl SGen is the future (changes to Boehm support code would be
529                 dnl required if you wish to re-enable Boehm)
530                 support_boehm=no
531                 with_gc=sgen
532                 need_link_unlink=yes
533                 use_sigposix=yes
534                 dnl Similar limitation to macOS about the first thread and the
535                 dnl guard page, except sometimes the runtime hangs. Disable for
536                 dnl now until cause can be determined or it seems OK enough.
537                 with_sigaltstack=no
538                 dnl use pthread TLS, __thread has issues with the compiler flags we use
539                 with_tls=pthread
540                 dnl ppc Linux is the same? test further
541                 disable_munmap=yes
542                 RID="aix-ppc64"
543                 CORETARGETS="-p:TargetsUnix=true"
544                 ;;
545         *)
546                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
547                 libdl="-ldl"
548                 ;;
549 esac
551 AC_MSG_RESULT(ok)
553 if test x$need_link_unlink = xyes; then
554    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
557 if test x$host_win32 = xyes; then
558    AC_DEFINE(HOST_WIN32, 1, [Host Platform is Win32])
561 if test x$target_win32 = xyes; then
562    AC_DEFINE(TARGET_WIN32, 1, [Target Platform is Win32])
565 if test x$host_darwin = xyes; then
566    AC_DEFINE(HOST_DARWIN, 1, [Host Platform is Darwin])
569 # Defined for all targets/platforms using classic Windows API support.
570 AC_DEFINE(HAVE_CLASSIC_WINAPI_SUPPORT, 1, [Use classic Windows API support])
571 AC_DEFINE(HAVE_UWP_WINAPI_SUPPORT, 0, [Don't use UWP Windows API support])
573 AC_SUBST(extra_runtime_ldflags)
574 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
575 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
576 AM_CONDITIONAL(HOST_LINUX, echo x$target_os | grep -q linux)
577 AM_CONDITIONAL(HOST_DARWIN, test x$host_darwin = xyes)
578 AM_CONDITIONAL(HOST_SIGPOSIX, test x$use_sigposix = xyes)
579 AM_CONDITIONAL(HOST_ANDROID, test x$platform_android = xyes)
580 AM_CONDITIONAL(HOST_TIZEN, test x$platform_tizen = xyes)
581 AM_CONDITIONAL(HOST_IOS, test x$platform_ios = xyes)
582 AM_CONDITIONAL(HOST_WASM, test x$platform_wasm = xyes)
584 if test -z "$HOST_DARWIN_TRUE"; then :
585 PLATFORM_AOT_SUFFIX=.dylib
586 PLATFORM_AOT_PREFIX=lib
589 if test -z "$HOST_LINUX_TRUE"; then :
590 PLATFORM_AOT_SUFFIX=.so
591 PLATFORM_AOT_PREFIX=lib
594 if test -z "$HOST_WIN32_TRUE"; then :
595 PLATFORM_AOT_SUFFIX=.dll
596 PLATFORM_AOT_PREFIX=
599 AC_SUBST(PLATFORM_AOT_SUFFIX)
600 AC_SUBST(PLATFORM_AOT_PREFIX)
602 if test -z "$HOST_WASM_TRUE"; then :
603 AC_DEFINE(HAVE_UTIME)
604 AC_DEFINE(HAVE_UTIMES)
607 ## PLATFORM_AOT_SUFFIX not so simple for windows :-)
609 AC_CHECK_TOOL(CC, gcc, gcc)
610 AC_PROG_CC
611 AC_CHECK_TOOL(CXX, g++, g++)
612 AC_PROG_CXX
613 AM_PROG_AS
614 AC_PROG_INSTALL
615 AC_PROG_AWK
616 AM_PROG_CC_C_O
617 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
618 : ${CCAS='$(CC)'}
619 # Set ASFLAGS if not already set.
620 : ${CCASFLAGS='$(CFLAGS)'}
621 AC_SUBST(CCAS)
622 AC_SUBST(CCASFLAGS)
624 if test "x$CXX" = "xno"; then
625         AC_MSG_ERROR([No c++ compiler found. You need to install a c++ compiler])
628 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
629 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
630 if test "x$CXX" = "xg++"; then
631         if test "x$GXX" != "xyes"; then
632                 # automake/libtool is so broken, it requires g++ even if the c++ sources
633                 # are inside automake conditionals
634                 AC_MSG_ERROR([You need to install g++])
635         fi
638 dnl may require a specific autoconf version
639 dnl AC_PROG_CC_FOR_BUILD
640 dnl CC_FOR_BUILD not automatically detected
641 CC_FOR_BUILD=$CC
642 CFLAGS_FOR_BUILD=$CFLAGS
643 BUILD_EXEEXT=
644 if test "x$cross_compiling" = "xyes"; then
645         CC_FOR_BUILD=cc
646         CFLAGS_FOR_BUILD=
647         BUILD_EXEEXT=""
649 AC_SUBST(CC_FOR_BUILD)
650 AC_SUBST(CFLAGS_FOR_BUILD)
651 AC_SUBST(HOST_CC)
652 AC_SUBST(BUILD_EXEEXT)
654 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
655 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
657 # Set STDC_HEADERS
658 AC_HEADER_STDC
659 AC_LIBTOOL_WIN32_DLL
660 # This causes monodis to not link correctly
661 #AC_DISABLE_FAST_INSTALL
663 #lookup makedev() header
664 AC_HEADER_MAJOR
666 AM_PROG_LIBTOOL
667 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
668 DOLT
670 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
671 AC_SUBST(export_ldflags)
673 # Test whenever ld supports -version-script
674 AC_PROG_LD
675 AC_PROG_LD_GNU
677 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 copyfile.h)
678 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)
680 # zlib/configure checks for unistd.h existance and defines HAVE_UNISTD_H on the compiler
681 # command line (not config.h) if it is present.
682 AC_CHECK_HEADER(unistd.h,
683     [HAVE_UNISTD_H=1
684      ZLIB_CFLAGS="$ZLIB_CFLAGS -DHAVE_UNISTD_H"],
685     [HAVE_UNISTD_H=0])
687 AC_SUBST(HAVE_UNISTD_H)
689 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
690                   [], [], [#include <stddef.h>
691                   #include <sys/socket.h>
692                   #include <linux/socket.h>])
694 AC_CHECK_HEADERS(sys/user.h, [], [],
696 #ifdef HAVE_SYS_PARAM_H
697 # include <sys/param.h>
698 #endif
701 AC_CHECK_HEADERS(linux/serial.h)
703 case "$host" in
704         # Use bundled zlib on Windows to be sure it is static.
705         *-mingw*|*-cygwin*)
706                 have_zlib=no
707                 zlib_msg="bundled zlib"
708                 ;;
709         default)
710                 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
711                 if test x$have_zlib = xyes; then
712                         AC_TRY_COMPILE([#include <zlib.h>], [
713                                 #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
714                                 #else
715                                 #error No good zlib found
716                                 #endif
717                         ],[
718                                 AC_MSG_RESULT(Using system zlib)
719                                 zlib_msg="system zlib"
720                                 AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
721                         ],[
722                                 AC_MSG_RESULT(Using embedded zlib)
723                                 have_zlib=no
724                                 zlib_msg="bundled zlib"
725                         ])
726                 fi
727                 ;;
728 esac
730 AC_ARG_WITH(static-zlib, [  --with-static-zlib=PATH    use the specified static zlib instead of -lz],[STATIC_ZLIB_PATH=$with_static_zlib],[STATIC_ZLIB_PATH=])
731 if test "x$STATIC_ZLIB_PATH" != "x"; then
732         have_static_zlib=yes
733         AC_SUBST(STATIC_ZLIB_PATH)
736 AM_CONDITIONAL(HAVE_STATIC_ZLIB, test x$have_static_zlib = xyes)
737 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
738 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
740 # for mono/metadata/debug-symfile.c
741 AC_CHECK_HEADERS(elf.h)
743 # for support
744 AC_CHECK_HEADERS(poll.h)
745 AC_CHECK_HEADERS(sys/poll.h)
746 AC_CHECK_HEADERS(sys/wait.h)
747 AC_CHECK_HEADERS(grp.h)
748 AC_CHECK_HEADERS(syslog.h)
749 AC_CHECK_FUNCS(vsyslog)
751 # for mono/dis
752 AC_CHECK_HEADERS(wchar.h)
754 # for Linux statfs support
755 AC_CHECK_HEADERS(linux/magic.h)
757 # For Android NDK unified headers
758 if test x$platform_android = xyes; then
759         AC_CHECK_HEADERS(machine/endian.h sys/endian.h)
760         AC_CHECK_HEADERS(android/legacy_signal_inlines.h, [have_android_signal_inlines=yes], [have_android_signal_inlines=no])
761         AC_CHECK_HEADERS(android/ndk-version.h)
763         # Make sure SIGRT{MIN,MAX} work - they will fail to work with unified headers if building for
764         # API level < 21 *and* android/legacy_signal_inlines.h doesn't declare (and define) the required
765         # libc APIs to obtain values for SIGRT{MIN,MAX}. We perform the check only if android/legacy_signal_inlines.h
766         # is found because in other cases the macros will either work (for NDK < 14) or fail if the legacy header
767         # doesn't contain the required definitions (NDK 14)
768         if test x$have_android_signal_inlines = xyes; then
769                 AC_MSG_CHECKING([Whether Android SIGRTMIN/SGRTMAX macros are valid])
770                 AC_COMPILE_IFELSE([
771                         AC_LANG_PROGRAM([#include <signal.h>
772                                 #include <android/legacy_signal_inlines.h>],[
773                                 int i;
774                                 for (i = SIGRTMIN + 1; i < SIGRTMAX; ++i) {
775                                 }
776                         ])],[
777                                 AC_MSG_RESULT(yes)
778                                 android_sigrtminmax_work=yes
779                         ],[
780                                 AC_MSG_RESULT(no)
781                                 android_sigrtminmax_work=no
782                         ]
783                 )
785                 if test x$android_sigrtminmax_work = xno; then
786                         AC_MSG_ERROR([Android SIGRTMIN/SIGRTMAX macros don't work in this NDK])
787                 fi
788         fi
790         # Attempt to detect whether we're using Android NDK unified headers
791         AC_CHECK_HEADERS(android/api-level.h, [have_android_api_level=yes], [have_android_api_level=no])
792         AC_CHECK_HEADERS(android/versioning.h, [have_android_versioning=yes], [have_android_versioning=no])
794         android_unified_headers=no
795         if test x$have_android_api_level = xyes; then
796                 if test x$have_android_versioning = xyes; then
797                         AC_MSG_CHECKING([whether using Android NDK unified headers])
799                         # Both macros are defined only in the NDK unified headers
800                         AC_COMPILE_IFELSE([
801                                 AC_LANG_PROGRAM([
802                                         #include <android/api-level.h>
803                                         #include <android/versioning.h>
804                                 ],[
805                                         #if __ANDROID_API_O__ == 26 && defined(__INTRODUCED_IN)
806                                         #else
807                                                 #error __ANDROID_API_O__ != 26 or the __INTRODUCED_IN macro not defined
808                                         #endif
809                                 ])],[
810                                         AC_MSG_RESULT(yes)
811                                         android_unified_headers=yes
812                                 ],[
813                                         AC_MSG_RESULT(no)
814                                         android_unified_headers=no
815                                 ]
816                         )
817                 fi
818         fi
820         if test x$android_unified_headers = xyes; then
821                 AC_DEFINE(ANDROID_UNIFIED_HEADERS, 1, [Whether Android NDK unified headers are used])
822         fi
823 fi # Android
825 # not 64 bit clean in cross-compile
826 AC_CHECK_SIZEOF(void *)
827 AC_CHECK_SIZEOF(long)
829 AC_CHECK_SIZEOF(int)
830 AC_CHECK_SIZEOF(long long)
832 AC_CACHE_CHECK([for clang],
833         mono_cv_clang,[
834         AC_TRY_COMPILE([], [
835                 #ifdef __clang__
836                 #else
837                 #error "FAILED"
838                 #endif
839         ],
840         [mono_cv_clang=yes],
841         [mono_cv_clang=no],
842         [])
845 AC_ARG_ENABLE(visibility-hidden,
846 [  --disable-visibility-hidden    disable usage of -fvisiblity=hidden],
847    disable_visibility_hidden=yes, disable_visibility_hidden=no)
849 WARN=''
850 if test x"$GCC" = xyes; then
851                 WARN='-Wall -Wunused -Wmissing-declarations -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes'
852                 CFLAGS="$CFLAGS -Wmissing-prototypes -Wstrict-prototypes -Wnested-externs -Wno-format-zero-length"
854                 # We require C99 with some GNU extensions, e.g. `linux` macro
855                 CFLAGS="$CFLAGS -std=gnu99"
857                 # The runtime code does not respect ANSI C strict aliasing rules
858                 CFLAGS="$CFLAGS -fno-strict-aliasing"
860                 # We rely on signed overflow to behave
861                 CFLAGS="$CFLAGS -fwrapv"
863                 CFLAGS="$CFLAGS -DMONO_DLL_EXPORT"
864                 if test x"$disable_visibility_hidden" = xno; then
865                    # Don't export any symbols by default
866                    SHARED_CFLAGS="-fvisibility=hidden"
867                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
868                 fi
870                 ORIG_CFLAGS=$CFLAGS
871                 # Check for the normal version, since gcc ignores unknown -Wno options
872                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
873                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
874                 AC_TRY_COMPILE([],[
875                 ], [
876                    AC_MSG_RESULT(yes)
877                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
878                 ], [
879                    AC_MSG_RESULT(no)
880                    CFLAGS=$ORIG_CFLAGS
881                 ])
883                 if test "x$mono_cv_clang" = "xyes"; then
884                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
885                    WARN="$WARN -Qunused-arguments"
886                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign -Wno-return-stack-address -Wno-constant-logical-operand"
887                    # We rely on zero length arrays in structs
888                    WARN="$WARN -Wno-zero-length-array"
889                 fi
890 else
891         # The Sun Forte compiler complains about inline functions that access static variables
892         # so disable all inlining.
893         case "$host" in
894         *-*-solaris*)
895                 CFLAGS="$CFLAGS -Dinline="
896                 ;;
897         esac
899 CFLAGS="$WARN $CFLAGS -g"
900 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
901 CPPFLAGS="$WARN $CPPFLAGS -g"
903 # Where's the 'mcs' source tree?
904 if test -d $srcdir/mcs; then
905   mcsdir=mcs
906 else
907   mcsdir=../mcs
910 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
911         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
912                 mcsdir=$with_mcs_path
913         fi
916 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
918 AC_ARG_WITH(core,       [  --with-core=only       controls whether to build Mono as a .NET Core runtime (defaults to no)],[],[with_core=no])
919 if test x$with_core = xonly; then
920     AC_DEFINE(ENABLE_NETCORE,1,[Enables the support for .NET Core Features in the MonoVM])
921     with_runtime_preset=netcore
923 AM_CONDITIONAL(ENABLE_NETCORE, test x$with_core = xonly)
926 # A sanity check to catch cases where the package was unpacked
927 # with an ancient tar program (Solaris)
929 AC_ARG_ENABLE(solaris-tar-check,
930 [  --disable-solaris-tar-check    disable solaris tar check],
931    do_solaris_tar_check=no, do_solaris_tar_check=yes)
933 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
934         AC_MSG_CHECKING(integrity of package)
935         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
936         then
937                 AC_MSG_RESULT(ok)
938         else
939                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
940                 AC_MSG_ERROR([$errorm])
941         fi
944 if test "x$with_mcs_path" != "x"; then
945 mcs_topdir=$(cd "$mcsdir" && pwd)
946 mcs_topdir_from_srcdir=$mcs_topdir
947 else
948 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
949 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
952 # Convert mcs_topdir* paths to Windows syntax.
953 if test x$cross_compiling$host_win32 = xnoyes; then
954   mcs_topdir=$(cygpath -m $mcs_topdir)
955   case $mcs_topdir_from_srcdir in
956     /cygdrive/*)
957         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
958         ;;
959   esac
962 AC_SUBST([mcs_topdir])
963 AC_SUBST([mcs_topdir_from_srcdir])
965 # gettext: prepare the translation directories. 
966 # we do not configure the full gettext, as we consume it dynamically from C#
967 AM_PO_SUBDIRS
969 if test "x$USE_NLS" = "xyes"; then
970    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
972    if test "x$HAVE_MSGFMT" = "xno"; then
973           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
974    fi
977 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
979 pkg_config_path=
980 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
981         if test x$with_crosspkgdir = "x"; then
982                 if test -s $PKG_CONFIG_PATH; then
983                         pkg_config_path=$PKG_CONFIG_PATH
984                 fi
985         else
986                 pkg_config_path=$with_crosspkgdir
987                 PKG_CONFIG_PATH=$pkg_config_path
988                 export PKG_CONFIG_PATH
989         fi
992 AC_ARG_ENABLE(ninja,[  --enable-ninja    Enable using ninja where available], enable_ninja=$enableval)
993 AC_CHECK_PROG(HAVE_NINJA, ninja, yes, no)
994 AM_CONDITIONAL(NINJA, test x$enable_ninja = xyes -a x$HAVE_NINJA != xno)
996 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
997 if test x$werror_flag = xyes; then
998         WERROR_CFLAGS="-Werror"
1000 AC_SUBST([WERROR_CFLAGS])
1001 AC_SUBST([SHARED_CFLAGS])
1003 GLIB_CFLAGS='-I$(top_srcdir)/mono/eglib -I$(top_builddir)/mono/eglib'
1004   
1005 AC_SUBST(GLIB_CFLAGS)
1007 # Enable support for fast thread-local storage
1008 # Some systems have broken support, so we allow to disable it.
1009 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
1011 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
1012 # This does not work on some platforms (bug #55253)
1013 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
1015 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
1016 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
1017 # Same as --with-shared_mono=no
1018 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
1020 if test "x$enable_static" = "xno"; then
1021    with_static_mono=no
1024 if test "x$enable_shared" = "xno"; then
1025    with_shared_mono=no
1028 if test "x$enable_libraries" = "xno"; then
1029    with_shared_mono=no
1032 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
1034 if test "x$host_win32" = "xyes"; then
1035    # Boehm GC requires the runtime to be in its own dll
1036    with_static_mono=no
1039 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
1040 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
1041 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
1042 AC_ARG_ENABLE(support-build, [  --disable-support-build disable the build of the support directory], try_support_build=$enableval, enable_support_build=yes)
1044 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
1045 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
1046         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
1047         ORIG_CFLAGS=$CFLAGS
1048         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
1049         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
1050         AC_TRY_COMPILE([], [
1051         ], [
1052            AC_MSG_RESULT(yes)
1053            # Pass it to libgc as well
1054            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
1055         ], [
1056            AC_MSG_RESULT(no)
1057            CFLAGS=$ORIG_CFLAGS
1058         ])
1061 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
1063 if test x$enable_small_config = xyes; then
1064         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
1065         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
1068 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=$enableval, enable_system_aot=default)
1070 DISABLED_FEATURES=none
1071 csc_compiler=default
1072 endian=unknown
1073 AC_C_BIGENDIAN([endian=big],[endian=little],[endian=unknown])
1074 AC_MSG_CHECKING([CSharp compiler to use])
1075 AC_ARG_WITH(csc, [  --with-csc=mcs,roslyn,default      Configures the CSharp compiler to use],[
1076    if test x$withval = xmcs; then
1077        csc_compiler=mcs
1078    elif test x$withval = xroslyn; then
1079        csc_compiler=roslyn
1080    elif test x$withval = xdefault; then
1081        :
1082    else
1083        AC_MSG_ERROR([You must supply one of "mcs", "roslyn" or "default" to the --with-csc option])
1084    fi
1085 ],[csc_compiler=default])
1087 if test $csc_compiler = default; then
1088    if test $endian = big; then
1089       csc_compiler=mcs
1090    elif test $endian = little; then
1091       case "$host" in
1092         powerpc*) csc_compiler=mcs ;;
1093         *) csc_compiler=roslyn ;;
1094       esac
1095    else
1096       csc_compiler=mcs
1097    fi
1099 AC_MSG_RESULT($csc_compiler)
1101 AC_ARG_WITH(jemalloc,             [  --with-jemalloc=yes,no               If jemalloc is enabled (defaults to no)],                                     [], [with_jemalloc=no])
1102 AC_ARG_WITH(jemalloc-always,      [  --with-jemalloc_always=yes,no        If jemalloc is enabled and always used (defaults to yes)],                    [], [with_jemalloc_always=no])
1103 AC_ARG_WITH(jemalloc-assert,      [  --with-jemalloc_assert=yes,no        If jemalloc performs runtime checks for memory correctness (defaults to no)], [], [with_jemalloc_assert=no])
1106 if test x$target_win32 = xyes; then
1107 with_jemalloc=no
1108 with_jemalloc_assert=no
1109 with_jemalloc_always=no
1112 AM_CONDITIONAL(MONO_JEMALLOC_ASSERT, [test "x$with_jemalloc_assert" = "xyes"])
1113 if test "x$with_jemalloc_assert" = "xyes"; then
1114 JEMALLOC_CFLAGS+=" -DMONO_JEMALLOC_ASSERT"
1115 AC_DEFINE(MONO_JEMALLOC_ASSERT, 1, [Make jemalloc assert for mono])
1116 AC_SUBST(MONO_JEMALLOC_ASSERT, 1)
1119 AM_CONDITIONAL(MONO_JEMALLOC_DEFAULT, [test "x$with_jemalloc_always" = "xyes"])
1120 if test "x$with_jemalloc_always" = "xyes"; then
1121 with_jemalloc=yes
1122 JEMALLOC_CFLAGS+=" -DMONO_JEMALLOC_DEFAULT"
1123 AC_DEFINE(MONO_JEMALLOC_DEFAULT, 1, [Make jemalloc default for mono])
1124 AC_SUBST(MONO_JEMALLOC_DEFAULT, 1)
1127 AM_CONDITIONAL(MONO_JEMALLOC_ENABLED, [test "x$with_jemalloc" = "xyes"])
1128 if test "x$with_jemalloc" = "xyes"; then
1129 JEMALLOC_LDFLAGS="-L`pwd`/mono/utils/jemalloc/jemalloc/lib -ljemalloc_pic"
1130 JEMALLOC_CFLAGS+=" -DMONO_JEMALLOC_ENABLED -I `pwd`/mono/utils/jemalloc/jemalloc/include"
1131 JEMALLOC_AUTOCONF_FLAGS=" --build=$target --host=$host"
1133 if test "x$target_mach" = "xyes"; then
1134         JEMALLOC_CPPFLAGS=" -stdlib=libc++ "
1137 AC_DEFINE(MONO_JEMALLOC_ENABLED, 1, [Enable jemalloc usage for mono])
1138 AC_SUBST(MONO_JEMALLOC_ENABLED, 1)
1140 AC_SUBST(JEMALLOC_CFLAGS)
1141 AC_SUBST(JEMALLOC_CPPFLAGS)
1142 AC_SUBST(JEMALLOC_LDFLAGS)
1143 AC_SUBST(JEMALLOC_AUTOCONF_FLAGS)
1146 # Terminology:
1147 # Crash privacy - Attempts to not send identifying information in the crash dump / to protect the obscurity of the program control flow
1148 # MERP - The MS telemetry profile. Not for general use.
1149 # Structured crashes - crashes at runtime that trigger a stack walk by mono that happens cooperatively
1151 # Structured crashes are not merp crashes. Structured crashes are json dumps made by mono during crashes. Merp upload is going to use the dumping code is a very specific way, and is enabled at runtime with an icall.
1153 #--with-crash_privacy=yes --with-structured_crashes=no means we don't wanna dump in non-merp-enabled builds, and we want to not send symbol strings. This is going to be the default pair of settings for VS4Mac.
1154 #--with-crash_privacy=yes --with-structured_crashes=yes means you want to see crashes on your console, and you want to not see unmanaged symbol names. This is an option for proprietary apps that have manual bugs filed.
1155 #--with-crash_privacy=no --with-structured_crashes=no means you want to see no crash dumps on failure and you don't care about privacy. This is how you'd set a "don't want it, don't care" configuration.
1156 #--with-crash_privacy=no --with-structured_crashes=yes means you want full crashes and you want to see them in the terminal, not on telemetry. This is going to be how we build for CI.
1158 AC_ARG_WITH(crash-privacy,       [  --with-crash_privacy=yes,no         If you want your crashes to not include names of symbols present in the binary. ], [], [with_crash_privacy=yes])
1159 AC_ARG_WITH(structured-crashes,  [  --with-structured_crashes=yes,no    If you want your unmanaged crashes to result in a small crash dump file. ],        [], [with_structured_crashes=yes])
1160 AC_ARG_ENABLE(crash-reporting,  [  --disable-crash-reporting            Enable or Disable crash reporting subsystem],        [crash_reporting=$enableval], [crash_reporting=yes])
1162 if test "x$with_crash_privacy" = "xyes"; then
1163 AC_DEFINE(MONO_PRIVATE_CRASHES,1,[Do not include names of unmanaged functions in the crash dump])
1166 if test "x$with_structured_crashes" = "xno"; then
1167 AC_DEFINE(DISABLE_STRUCTURED_CRASH,1,[Do not create structured crash files during unmanaged crashes])
1170 case "$host" in
1171         *-mingw*|*-*-cygwin*|*-*-aix*|*-*-os400*)
1172                 crash_reporting=no
1173                 ;;
1174 esac
1176 if test "x$crash_reporting" != "xyes"; then
1177 CFLAGS="$CFLAGS -DDISABLE_CRASH_REPORTING=1"
1178 CXXFLAGS="$CXXFLAGS -DDISABLE_CRASH_REPORTING=1"
1181 AC_ARG_ENABLE(monodroid, [ --enable-monodroid Enable runtime support for Monodroid (Xamarin.Android)], enable_monodroid=$enableval, enable_monodroid=no)
1182 AM_CONDITIONAL(ENABLE_MONODROID, test x$enable_monodroid = xyes)
1184 AC_ARG_ENABLE(monotouch, [ --enable-monotouch Enable runtime support for Monotouch (Xamarin.iOS and Xamarin.Mac)], enable_monotouch=$enableval, enable_monotouch=no)
1185 AM_CONDITIONAL(ENABLE_MONOTOUCH, test x$enable_monotouch = xyes)
1187 if test x$enable_monodroid = xyes; then
1188         AC_DEFINE(ENABLE_MONODROID, 1, [Enable runtime support for Monodroid (Xamarin.Android)])
1191 if test x$enable_monotouch = xyes; then
1192         AC_DEFINE(ENABLE_MONOTOUCH, 1, [Enable runtime support for Monotouch (Xamarin.iOS and Xamarin.Mac)])
1195 AC_ARG_ENABLE(cxx, [  --enable-cxx   compile some code as C++])
1197 # mono/corefx/native has a lot of invalid C++98 in its headers
1198 # dotnet/corefx/native looks a lot better, i.e. 44e5bdafb8d989a220c9cf1b94f31a64a6e4f052
1199 #CXXFLAGS_COMMON=' -std=gnu++98 -fno-exceptions -fno-rtti '
1200 CXXFLAGS_COMMON=' -std=gnu++0x -fno-exceptions -fno-rtti '
1201 # "c++0x" instead of C++11, for compat with Centos6/gcc4.4
1203 # -stdlib=libc++ is needed by clang for iOS 6.0 (-miphoneos-version-min=6.0)
1204 # to support C++11 headers but it does not seem to harm elsewhere, so over-approximate
1205 # and add it whenever we're running clang on Darwin.
1206 if test "x$mono_cv_clang" = xyes -a x$host_darwin = xyes; then
1207         CXXFLAGS_COMMON="$CXXFLAGS_COMMON -stdlib=libc++"
1210 AC_SUBST(CXXFLAGS_COMMON)
1212 if test "x$enable_cxx" = "xyes"; then
1214         CXX_ADD_CFLAGS=" -xc++ $CXXFLAGS_COMMON "
1216         # -std=gnu99 -xc++ is not allowed and errors.
1217         CXX_REMOVE_CFLAGS=-std=gnu99
1218         # These give warnings and should be removed. They are C-only.
1219         # i.e. C++ never allows these, they are always errors and their warningness is not controllable.
1220         CXX_REMOVE_CFLAGS="$CXX_REMOVE_CFLAGS -Wmissing-prototypes -Wstrict-prototypes -Wnested-externs"
1221         # Likewise with CentOS 6 gcc 4.4.
1222         CXX_REMOVE_CFLAGS="$CXX_REMOVE_CFLAGS -Werror-implicit-function-declaration"
1224         # The C-only-ness of -Wno-format-zero-length varies with gcc version.
1225         # It is C-only prior to 4.7. Using it with C++ prior to 4.7
1226         # generates a warning every time we run gcc which is very unsightly.
1227         # The warning is for e.g. sprintf(foo, "") which can just be
1228         # foo[0] = 0 but Mono's use is more elaborate, not as easy to "fix",
1229         # and completely legal and valid.
1230         # We have to switch to C++ and not just use -xc++ because of -std=gnu99 (error when combined with -xc++).
1231         # Alternatively, just run $CXX -xc++ -c /dev/null.
1232         AC_LANG_PUSH(C++)
1233         ORIG_CXXFLAGS=$CXXFLAGS
1234         CXXFLAGS="$CXXFLAGS -Werror -Wno-format-zero-length -xc++ "
1235         AC_MSG_CHECKING(or C-only-ness of -Wno-format-zero-length)
1236         AC_TRY_COMPILE([ ], [ ], [ AC_MSG_RESULT(yes) ],
1237                                  [ AC_MSG_RESULT(no)
1238                                    CXX_REMOVE_CFLAGS="$CXX_REMOVE_CFLAGS -Wno-format-zero-length" ])
1239         CXXFLAGS=$ORIG_CXXFLAGS
1240         AC_LANG_POP(C++)
1242 AC_SUBST(CXX_ADD_CFLAGS)
1243 AC_SUBST(CXX_REMOVE_CFLAGS)
1246 # Set the build profiles and options before things which use them
1249 AC_ARG_WITH(profile4_x,          [  --with-profile4_x=yes,no            If you want to install the 4.x FX (defaults to yes)],                       [], [with_profile4_x=default])
1250 AC_ARG_WITH(monodroid,           [  --with-monodroid=yes,no             If you want to build the MonoDroid assemblies (defaults to no)],            [], [with_monodroid=default])
1251 AC_ARG_WITH(monotouch,           [  --with-monotouch=yes,no             If you want to build the Xamarin.iOS assemblies (defaults to no)],          [], [with_monotouch=default])
1252 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])
1253 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])
1254 AC_ARG_WITH(bitcode,             [  --with-bitcode=yes,no               If bitcode is enabled (defaults to no)],                                    [], [with_bitcode=default])
1255 AC_ARG_WITH(xammac,              [  --with-xammac=yes,no                If you want to build the Xamarin.Mac assemblies (defaults to no)],          [], [with_xammac=default])
1256 AC_ARG_WITH(testing_aot_full_interp,  [  --with-testing_aot_full_interp=yes,no    If you want to build the testing_aot_full_interp assemblies (defaults to no)],   [], [with_testing_aot_full_interp=default])
1257 AC_ARG_WITH(testing_aot_hybrid,  [  --with-testing_aot_hybrid=yes,no    If you want to build the testing_aot_hybrid assemblies (defaults to no)],   [], [with_testing_aot_hybrid=default])
1258 AC_ARG_WITH(testing_aot_full,    [  --with-testing_aot_full=yes,no      If you want to build the testing_aot_full assemblies (defaults to no)],     [], [with_testing_aot_full=default])
1259 AC_ARG_WITH(winaot,              [  --with-winaot=yes,no                If you want to build the Windows friendly AOT assemblies (defaults to no)], [], [with_winaot=default])
1260 AC_ARG_WITH(testing_winaot_interp,    [  --with-testing_winaot_interp=yes,no      If you want to build the Windows friendly AOT + Interpreter testing assemblies (defaults to no)], [], [with_testing_winaot_interp=default])
1261 AC_ARG_WITH(orbis,               [  --with-orbis=yes,no                 If you want to build the Orbis assemblies (defaults to no)], [], [with_orbis=default])
1262 AC_ARG_WITH(unreal,              [  --with-unreal=yes,no                If you want to build the Unreal assemblies (defaults to no)], [], [with_unreal=default])
1263 AC_ARG_WITH(wasm,                [  --with-wasm=yes,no                  If you want to build the WebAssembly (defaults to no)], [], [with_wasm=default])
1266 AC_ARG_WITH(runtime-preset, [  --with-runtime-preset=net_4_x,all,aot,aot_llvm,hybridaot,hybridaot_llvm,fullaot,fullaot_llvm,winaot,winaotinterp,winaot_llvm,winaotinterp_llvm,bitcode,bitcodeinterp,unreal,fullaotinterp,fullaotinterp_llvm  Which default profile to build (defaults to net_4_x)],  [], [with_runtime_preset=net_4_x])
1267 AC_ARG_WITH(spectre-mitigation,             [  --with-spectre-mitigation=yes,no   If you want to build the runtime with compiler flags that enable Spectre mitigation (defaults to no)], [], [with_spectre_mitigation=default])
1268 AC_ARG_WITH(spectre-indirect-branch-choice,   [  --with-spectre-indirect-branch-choice=keep,thunk,inline,extern   Convert indirect branches to the specified kind of thunk (defaults to inline)], [], [with_spectre_indirect_branch_choice=inline])
1269 AC_ARG_WITH(spectre-function-return-choice, [  --with-spectre-function-return-choice=keep,thunk,inline,extern   Convert function return instructions to the specified kind of thunk (defaults to inline)], [], [with_spectre_function_return_choice=inline])
1272 dnl Spectre compiler mitigation flag checks
1274 if test "x$with_spectre_mitigation" = "xyes"; then
1275    AC_MSG_NOTICE([Compiler Spectre mitigation support checks])
1276    SPECTRE_CFLAGS=
1277    SPECTRE_INDIRECT_BRANCH_KIND=
1278    case "x$with_spectre_indirect_branch_choice" in
1279        xkeep) SPECTRE_INDIRECT_BRANCH_KIND=keep ;;
1280        xthunk) SPECTRE_INDIRECT_BRANCH_KIND=thunk ;;
1281        xinline) SPECTRE_INDIRECT_BRANCH_KIND=thunk-inline ;;
1282        xextern) SPECTRE_INDIRECT_BRANCH_KIND=thunk-extern ;;
1283        *) AC_MSG_ERROR([Invalid indirect jump thunk kind ($with_spectre_indirect_branch_choice)]) ;;
1284    esac
1286    SPECTRE_FUNCTION_RETURN_KIND=""
1287    case "x$with_spectre_function_return_choice" in
1288        xkeep) SPECTRE_FUNCTION_RETURN_KIND=keep ;;
1289        xthunk) SPECTRE_FUNCTION_RETURN_KIND=thunk ;;
1290        xinline) SPECTRE_FUNCTION_RETURN_KIND=thunk-inline ;;
1291        xextern) SPECTRE_FUNCTION_RETURN_KIND=thunk-extern ;;
1292        *) AC_MSG_ERROR([Invalid function return thunk kind ($with_spectre_function_return_choice)]) ;;
1293    esac
1295    AX_CHECK_COMPILE_FLAG(
1296         [ -mindirect-branch=$SPECTRE_INDIRECT_BRANCH_KIND ],
1297         [ SPECTRE_CFLAGS="$SPECTRE_CFLAGS -mindirect-branch=$SPECTRE_INDIRECT_BRANCH_KIND" ]
1298    )
1300    AX_CHECK_COMPILE_FLAG(
1301         [ -mfunction-return=$SPECTRE_FUNCTION_RETURN_KIND ],
1302         [ SPECTRE_CFLAGS="$SPECTRE_CFLAGS -mfunction-return=$SPECTRE_FUNCTION_RETURN_KIND" ]
1303    )
1305    if test "x$SPECTRE_CFLAGS" != "x" ; then
1306         CFLAGS="$CFLAGS $SPECTRE_CFLAGS"
1307         CXXFLAGS="$CXXFLAGS $SPECTRE_CFLAGS"
1308         spectre_mitigation_status="mitigation enabled"
1309    fi
1310 else
1311         spectre_mitigation_status="no mitigation"
1315 dnl Profile defaults
1317 TEST_PROFILE=default
1318 enable_llvm_default=no
1320 with_profile4_x_default=no
1321 with_monodroid_default=no
1322 with_monotouch_default=no
1323 with_monotouch_watch_default=no
1324 with_monotouch_tv_default=no
1325 with_xammac_default=no
1326 with_testing_aot_full_interp_default=no
1327 with_testing_aot_hybrid_default=no
1328 with_testing_aot_full_default=no
1329 with_winaot_default=no
1330 with_testing_winaot_interp_default=no
1331 with_orbis_default=no
1332 with_unreal_default=no
1333 with_wasm_default=no
1335 with_bitcode_default=no
1336 enable_cooperative_suspend_default=no
1337 enable_hybrid_suspend_default=no
1338 enable_copy_stack_data_default=yes
1340 # For the sake of clearer error messages, these numbers should all be different from each other.
1341 INVARIANT_AOT_OPTIONS=nimt-trampolines=2000,ntrampolines=10000,nrgctx-fetch-trampolines=256,ngsharedvt-trampolines=4400,nftnptr-arg-trampolines=4000
1343 AOT_BUILD_ATTRS=$INVARIANT_AOT_OPTIONS
1345 MONO_LLVM_PATH_OPTION=llvm-path="`pwd`/llvm/usr/bin"
1347 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
1348    DISABLE_MCS_DOCS_default=yes
1349 elif test x$with_runtime_preset = xnetcore; then
1350    DISABLE_MCS_DOCS_default=yes
1351    BTLS_SUPPORTED=no
1352    enable_mcs_build=no
1353    enable_support_build=no
1355    mono_feature_disable_remoting='yes'
1356    mono_feature_disable_reflection_emit_save='yes'
1357    mono_feature_disable_appdomains='yes'
1358    mono_feature_disable_cleanup='yes'
1359    mono_feature_disable_assembly_remapping='yes'
1360    mono_feature_disable_security='yes'
1361    mono_feature_disable_mdb='yes'
1362    mono_feature_disable_com='yes'
1363    mono_feature_disable_gac='yes'
1364    disable_mono_native=yes
1365    support_boehm=no
1366 elif test x$with_runtime_preset = xnet_4_x; then
1367    with_profile4_x_default=yes
1368    TEST_PROFILE=net_4_x
1369 elif test x$with_runtime_preset = xall; then
1370    with_profile4_x_default=yes
1371    with_monodroid_default=yes
1372    with_monotouch_default=yes
1373    with_monotouch_watch_default=yes
1374    with_monotouch_tv_default=yes
1375    with_xammac_default=yes
1376    with_winaot_default=yes
1377    with_testing_winaot_interp_default=yes
1378    with_orbis_default=yes
1379    with_unreal_default=yes
1380    with_wasm_default=yes
1381    with_testing_aot_full_interp_default=yes
1382    with_testing_aot_hybrid_default=yes
1383    with_testing_aot_full_default=yes
1384    TEST_PROFILE=net_4_x
1385 elif test x$with_runtime_preset = xbitcode; then
1386    DISABLE_MCS_DOCS_default=yes
1387    with_testing_aot_full_default=yes
1388    with_bitcode_default=yes
1389    enable_cooperative_suspend_default=yes
1390    # FIXME: use TEST_PROFILE=testing_aot_full
1391    TEST_PROFILE=testing_aot_bitcode
1392    PLATFORM_TEST_HARNESS_EXCLUDES=BitcodeNotSupported
1393    enable_llvm_default=yes
1395    mono_feature_disable_com='yes'
1396    mono_feature_disable_remoting='yes'
1397    mono_feature_disable_reflection_emit_save='yes'
1398    mono_feature_disable_reflection_emit='yes'
1399    mono_feature_disable_appdomains='yes'
1401    # We need at least clang++-6.0 to read the LLVM IR produced by the runtime
1402    AOT_BUILD_FLAGS="--runtime=mobile --aot=llvmonly,clangxx=clang++-6.0,$INVARIANT_AOT_OPTIONS"
1403    AOT_RUN_FLAGS="--runtime=mobile --llvmonly"
1404    AOT_MODE="llvmonly"
1405 elif test x$with_runtime_preset = xbitcodeinterp; then
1406    with_testing_aot_full_interp_default=yes
1407    with_bitcode_default=yes
1408    enable_cooperative_suspend_default=yes
1409    # FIXME: use TEST_PROFILE=testing_aot_full_interp
1410    TEST_PROFILE=testing_aot_bitcode_interp
1411    PLATFORM_TEST_HARNESS_EXCLUDES=BitcodeNotSupported
1412    enable_llvm_default=yes
1414    # mscorlib.dll aot compilation crashes
1415    mono_feature_disable_com='yes'
1417    # We need at least clang++-6.0 to read the LLVM IR produced by the runtime
1418    AOT_BUILD_FLAGS="--aot=llvmonly,interp,clangxx=clang++-6.0,$INVARIANT_AOT_OPTIONS"
1419    AOT_RUN_FLAGS="--llvmonly-interp"
1420 elif test x$with_runtime_preset = xfullaot; then
1421    DISABLE_MCS_DOCS_default=yes
1422    with_testing_aot_full_default=yes
1423    TEST_PROFILE=testing_aot_full
1425    mono_feature_disable_com='yes'
1426    mono_feature_disable_remoting='yes'
1427    mono_feature_disable_reflection_emit_save='yes'
1428    mono_feature_disable_reflection_emit='yes'
1429    mono_feature_disable_appdomains='yes'
1431    AOT_BUILD_FLAGS="--runtime=mobile -O=gsharedvt --aot=full,$INVARIANT_AOT_OPTIONS"
1432    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1433    AOT_MODE="full"
1434 elif test x$with_runtime_preset = xfullaot_llvm; then
1435    DISABLE_MCS_DOCS_default=yes
1436    with_testing_aot_full_default=yes
1437    TEST_PROFILE=testing_aot_full
1439    mono_feature_disable_com='yes'
1440    mono_feature_disable_remoting='yes'
1441    mono_feature_disable_reflection_emit_save='yes'
1442    mono_feature_disable_reflection_emit='yes'
1443    mono_feature_disable_appdomains='yes'
1445    AOT_BUILD_FLAGS="--runtime=mobile -O=gsharedvt --llvm --aot=full,$INVARIANT_AOT_OPTIONS"
1446    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1447    AOT_MODE="full"
1448 elif test x$with_runtime_preset = xhybridaot; then
1449    DISABLE_MCS_DOCS_default=yes
1450    with_testing_aot_hybrid_default=yes
1451    TEST_PROFILE=testing_aot_hybrid 
1453    AOT_BUILD_FLAGS="--runtime=mobile --aot=hybrid,$INVARIANT_AOT_OPTIONS"
1454    AOT_RUN_FLAGS="--runtime=mobile --hybrid-aot"
1455 elif test x$with_runtime_preset = xhybridaot_llvm; then
1456    DISABLE_MCS_DOCS_default=yes
1457    with_testing_aot_hybrid_default=yes
1458    TEST_PROFILE=testing_aot_hybrid
1460    AOT_BUILD_FLAGS="--runtime=mobile --llvm --aot=hybrid,$INVARIANT_AOT_OPTIONS"
1461    AOT_RUN_FLAGS="--runtime=mobile --hybrid-aot"
1462 elif test x$with_runtime_preset = xfullaotinterp; then
1463    with_testing_aot_full_interp_default=yes
1464    TEST_PROFILE=testing_aot_full_interp
1466    # mscorlib.dll aot compilation crashes
1467    mono_feature_disable_com='yes'
1469    AOT_BUILD_FLAGS="--aot=full,interp,$INVARIANT_AOT_OPTIONS"
1470    AOT_RUN_FLAGS="--full-aot-interp"
1471 elif test x$with_runtime_preset = xfullaotinterp_llvm; then
1472    with_testing_aot_full_interp_default=yes
1473    TEST_PROFILE=testing_aot_full_interp
1475    # mscorlib.dll aot compilation crashes
1476    mono_feature_disable_com='yes'
1478    AOT_BUILD_FLAGS="-O=gsharedvt --llvm --aot=full,interp,$INVARIANT_AOT_OPTIONS"
1479    AOT_RUN_FLAGS="--full-aot-interp"
1480 elif test x$with_runtime_preset = xaot; then
1481    with_profile4_x_default=yes
1483    AOT_BUILD_FLAGS="--aot=$INVARIANT_AOT_OPTIONS"
1484    AOT_RUN_FLAGS=""
1486    DISABLE_MCS_DOCS_default=yes
1487 elif test x$with_runtime_preset = xaot_llvm; then
1488    with_profile4_x_default=yes
1490    AOT_BUILD_FLAGS="--llvm --aot=$INVARIANT_AOT_OPTIONS"
1491    AOT_RUN_FLAGS=""
1493    DISABLE_MCS_DOCS_default=yes
1494 elif test x$with_runtime_preset = xwinaot; then
1495    DISABLE_MCS_DOCS_default=yes
1496    with_winaot_default=yes
1497    TEST_PROFILE=winaot
1499    mono_feature_disable_com='yes'
1500    mono_feature_disable_remoting='yes'
1501    mono_feature_disable_reflection_emit_save='yes'
1502    mono_feature_disable_reflection_emit='yes'
1503    mono_feature_disable_appdomains='yes'
1505    AOT_BUILD_FLAGS="--runtime=mobile -O=gsharedvt --aot=full,$INVARIANT_AOT_OPTIONS"
1506    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1507    AOT_MODE="full"
1508 elif test x$with_runtime_preset = xwinaotinterp; then
1509    DISABLE_MCS_DOCS_default=yes
1510    with_testing_winaot_interp_default=yes
1511    TEST_PROFILE=testing_winaot_interp
1513    mono_feature_disable_com='yes'
1514    mono_feature_disable_remoting='yes'
1515    mono_feature_disable_appdomains='yes'
1517    AOT_BUILD_FLAGS="--aot=full,interp,$INVARIANT_AOT_OPTIONS"
1518    AOT_RUN_FLAGS="--full-aot-interp"
1519 elif test x$with_runtime_preset = xwinaotinterp_llvm; then
1520    DISABLE_MCS_DOCS_default=yes
1521    with_testing_winaot_interp_default=yes
1522    TEST_PROFILE=testing_winaot_interp
1524    mono_feature_disable_com='yes'
1525    mono_feature_disable_remoting='yes'
1526    mono_feature_disable_appdomains='yes'
1528    INVARIANT_AOT_OPTIONS="llvmllc=-mattr=sse4.1,$INVARIANT_AOT_OPTIONS"
1529    AOT_BUILD_FLAGS="-O=gsharedvt --llvm --aot=full,interp,$INVARIANT_AOT_OPTIONS"
1530    AOT_RUN_FLAGS="--full-aot-interp"
1531 elif test x$with_runtime_preset = xwinaot_llvm; then
1532    DISABLE_MCS_DOCS_default=yes
1533    with_winaot_default=yes
1534    TEST_PROFILE=winaot
1536    mono_feature_disable_com='yes'
1537    mono_feature_disable_remoting='yes'
1538    mono_feature_disable_reflection_emit_save='yes'
1539    mono_feature_disable_reflection_emit='yes'
1540    mono_feature_disable_appdomains='yes'
1542    INVARIANT_AOT_OPTIONS="llvmllc=-mattr=sse4.1,$INVARIANT_AOT_OPTIONS"
1543    AOT_BUILD_FLAGS="--runtime=mobile -O=gsharedvt --llvm --aot=full,$INVARIANT_AOT_OPTIONS"
1544    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1545    AOT_MODE="full"
1546 elif test x$with_runtime_preset = xorbis; then
1547    DISABLE_MCS_DOCS_default=yes
1548    with_orbis_default=yes
1549    TEST_PROFILE=orbis
1551    mono_feature_disable_com='yes'
1552    mono_feature_disable_remoting='yes'
1553    mono_feature_disable_reflection_emit_save='yes'
1554    mono_feature_disable_reflection_emit='yes'
1555    mono_feature_disable_appdomains='yes'
1557    AOT_BUILD_FLAGS="--runtime=mobile --aot=full,$INVARIANT_AOT_OPTIONS"
1558    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1559    AOT_MODE="full"
1560 elif test x$with_runtime_preset = xunreal; then
1561    DISABLE_MCS_DOCS_default=yes
1562    with_unreal_default=yes
1563    TEST_PROFILE=unreal
1565    mono_feature_disable_com='yes'
1566    mono_feature_disable_remoting='yes'
1567    mono_feature_disable_appdomains='no'
1569    AOT_BUILD_FLAGS="--runtime=mobile --aot=hybrid,$INVARIANT_AOT_OPTIONS"
1570    AOT_RUN_FLAGS="--runtime=mobile --hybrid-aot"
1571 elif test x$with_runtime_preset = xwasm; then
1572    DISABLE_MCS_DOCS_default=yes
1573    with_wasm_default=yes
1574    TEST_PROFILE=wasm
1576    mono_feature_disable_com='yes'
1577    mono_feature_disable_remoting='yes'
1578    mono_feature_disable_reflection_emit_save='yes'
1579    mono_feature_disable_reflection_emit='yes'
1580    mono_feature_disable_appdomains='yes'
1582    AOT_BUILD_FLAGS="--runtime=mobile --aot=full,$INVARIANT_AOT_OPTIONS"
1583    AOT_RUN_FLAGS="--runtime=mobile --full-aot"
1584 else
1585    TEST_PROFILE=net_4_x
1586    with_profile4_x_default=yes
1589 if test "x$AOT_BUILD_FLAGS" != "x"; then :
1590    AC_SUBST(AOT_BUILD_FLAGS)
1591    AC_SUBST(AOT_RUN_FLAGS)
1592    # For llvmonlycheck + fullaotcheck
1593    AC_SUBST(INVARIANT_AOT_OPTIONS)
1596 AC_SUBST(TEST_PROFILE)
1598 if test "x$with_profile4_x" = "xdefault"; then
1599    with_profile4_x=$with_profile4_x_default
1601 if test "x$with_monodroid" = "xdefault"; then
1602    with_monodroid=$with_monodroid_default
1604 if test "x$with_monotouch" = "xdefault"; then
1605    with_monotouch=$with_monotouch_default
1607 if test "x$with_monotouch_watch" = "xdefault"; then
1608    with_monotouch_watch=$with_monotouch_watch_default
1610 if test "x$with_monotouch_tv" = "xdefault"; then
1611    with_monotouch_tv=$with_monotouch_tv_default
1613 if test "x$with_bitcode" = "xdefault"; then
1614    with_bitcode=$with_bitcode_default
1616 if test "x$with_xammac" = "xdefault"; then
1617    with_xammac=$with_xammac_default
1619 if test "x$with_testing_aot_full_interp" = "xdefault"; then
1620    with_testing_aot_full_interp=$with_testing_aot_full_interp_default
1622 if test "x$with_testing_aot_hybrid" = "xdefault"; then
1623    with_testing_aot_hybrid=$with_testing_aot_hybrid_default
1625 if test "x$with_testing_aot_full" = "xdefault"; then
1626    with_testing_aot_full=$with_testing_aot_full_default
1628 if test "x$with_winaot" = "xdefault"; then
1629    with_winaot=$with_winaot_default
1631 if test "x$with_testing_winaot_interp" = "xdefault"; then
1632    with_testing_winaot_interp=$with_testing_winaot_interp_default
1634 if test "x$with_orbis" = "xdefault"; then
1635    with_orbis=$with_orbis_default
1637 if test "x$with_unreal" = "xdefault"; then
1638    with_unreal=$with_unreal_default
1640 if test "x$with_wasm" = "xdefault"; then
1641    with_wasm=$with_wasm_default
1645 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = "xyes"])
1646 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
1647 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
1648 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
1649 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
1650 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
1651 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
1652 AM_CONDITIONAL(INSTALL_TESTING_AOT_FULL_INTERP, [test "x$with_testing_aot_full_interp" != "xno"])
1653 AM_CONDITIONAL(INSTALL_TESTING_AOT_HYBRID, [test "x$with_testing_aot_hybrid" != "xno"])
1654 AM_CONDITIONAL(INSTALL_TESTING_AOT_FULL, [test "x$with_testing_aot_full" != "xno"])
1655 AM_CONDITIONAL(INSTALL_WINAOT, [test "x$with_winaot" != "xno"])
1656 AM_CONDITIONAL(INSTALL_TESTING_WINAOT_INTERP, [test "x$with_testing_winaot_interp" != "xno"])
1657 AM_CONDITIONAL(INSTALL_ORBIS, [test "x$with_orbis" != "xno"])
1658 AM_CONDITIONAL(INSTALL_UNREAL, [test "x$with_unreal" != "xno"])
1659 AM_CONDITIONAL(INSTALL_WASM, [test "x$with_wasm" != "xno"])
1660 AM_CONDITIONAL(INSTALL_NETCORE, [test "x$with_core" != "xno"])
1662 AM_CONDITIONAL(HYBRID_AOT_TESTS, [test "x$TEST_PROFILE" = "xtesting_aot_hybrid"] || [test "x$TEST_PROFILE" = "xunreal"])
1663 AM_CONDITIONAL(FULL_AOT_TESTS, [test "x$TEST_PROFILE" = "xtesting_aot_full"] || [test "x$TEST_PROFILE" = "xtesting_aot_bitcode"] || [test "x$TEST_PROFILE" = "xwinaot"] || [test "x$TEST_PROFILE" = "xorbis"] || [test "x$TEST_PROFILE" = "xwasm"])
1664 AM_CONDITIONAL(FULL_AOT_INTERP_TESTS, [test "x$TEST_PROFILE" = "xtesting_aot_full_interp"] || [test "x$TEST_PROFILE" = "xtesting_aot_bitcode_interp"] || [test "x$TEST_PROFILE" == "xtesting_winaot_interp"])
1665 AM_CONDITIONAL(DEFAULT_TESTS, [test "x$TEST_PROFILE" = "xnet_4_x"])
1667 default_profile=net_4_x
1668 if test -z "$INSTALL_MONODROID_TRUE"; then :
1669    default_profile=monodroid
1671 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
1672    default_profile=monotouch
1674 if test -z "$INSTALL_XAMMAC_TRUE"; then :
1675    default_profile=xammac
1677 if test -z "$INSTALL_TESTING_AOT_FULL_INTERP_TRUE"; then :
1678    default_profile=testing_aot_full_interp
1680 if test -z "$INSTALL_TESTING_AOT_HYBRID_TRUE"; then :
1681    default_profile=testing_aot_hybrid
1683 if test -z "$INSTALL_TESTING_AOT_FULL_TRUE"; then :
1684    default_profile=testing_aot_full
1686 if test -z "$INSTALL_WINAOT_TRUE"; then :
1687    default_profile=winaot
1689 if test -z "$INSTALL_TESTING_WINAOT_INTERP_TRUE"; then :
1690    default_profile=testing_winaot_interp
1692 if test -z "$INSTALL_ORBIS_TRUE"; then :
1693    default_profile=orbis
1695 if test -z "$INSTALL_UNREAL_TRUE"; then :
1696    default_profile=unreal
1698 if test -z "$INSTALL_WASM_TRUE"; then :
1699    default_profile=wasm
1701 if test -z "$INSTALL_4_x_TRUE"; then :
1702    default_profile=net_4_x
1704 DEFAULT_PROFILE=$default_profile
1705 AC_SUBST(DEFAULT_PROFILE)
1708 # End build profile configuration
1711 if test x$USE_NLS = xprofile_default; then
1713         AC_MSG_CHECKING([NLS used])
1715         # We make the default value for USE_NLS
1716         # "no" on OSX because it isn't available on most
1717         # default OSX installs. The most common configurations will
1718         # all disable it, so this saves us typing.
1719         if test x$host_darwin = xyes; then
1720                 USE_NLS=no;
1721         else
1722                 USE_NLS=yes;
1723         fi
1725         AC_SUBST([USE_NLS])
1726         AC_MSG_RESULT([$USE_NLS])
1729 AC_ARG_ENABLE(static-gcc-libs, [  --enable-static-gcc-libs      Statically link GCC support libs (for MinGW32)])
1730 if test "x$enable_static_gcc_libs" = "xyes"; then
1731         # llvm/build.mk doesn't use automake, so make a regular make variable for it.
1732         AC_SUBST(STATIC_GCC_LIBS,1)
1734 AM_CONDITIONAL(ENABLE_STATIC_GCC_LIBS, test "x$enable_static_gcc_libs" = "xyes")
1736 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
1737      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier, 
1738      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, interpreter, simd, soft_debug, perfcounters, normalization, desktop_loader, shared_perfcounters, remoting,
1739          security, lldb, mdb, assert_messages, cleanup, sgen_marksweep_conc, sgen_split_nursery, sgen_gc_bridge, sgen_debug_helpers, sockets, gac.],
1741         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
1742                 eval "mono_feature_disable_$feature='yes'"
1743         done
1744         DISABLED_FEATURES=$enable_minimal
1745         disabled="Disabled:      $enable_minimal"
1746 ],[])
1748 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
1750 if test "x$mono_feature_disable_aot" = "xyes"; then
1751         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
1752         enable_system_aot=no
1753         AC_MSG_NOTICE([Disabled AOT compiler])
1756 if test "x$mono_feature_disable_profiler" = "xyes"; then
1757         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
1758         AC_MSG_NOTICE([Disabled support for the profiler])
1760 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
1762 if test "x$mono_feature_disable_decimal" = "xyes"; then
1763         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
1764         AC_MSG_NOTICE([Disabled support for decimal])
1767 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
1768         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
1769         AC_MSG_NOTICE([Disabled support for P/Invoke])
1772 if test "x$mono_feature_disable_debug" = "xyes"; then
1773         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
1774         AC_MSG_NOTICE([Disabled support for runtime debugging])
1777 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
1778         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
1779         mono_feature_disable_reflection_emit_save=yes
1780         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
1783 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
1784         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
1785         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
1788 if test "x$mono_feature_disable_large_code" = "xyes"; then
1789         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
1790         AC_MSG_NOTICE([Disabled support for large assemblies])
1793 if test "x$mono_feature_disable_logging" = "xyes"; then
1794         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
1795         AC_MSG_NOTICE([Disabled support for logging])
1798 if test "x$mono_feature_disable_com" = "xyes"; then
1799         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
1800         AC_MSG_NOTICE([Disabled COM support])
1803 if test "x$mono_feature_disable_ssa" = "xyes"; then
1804         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
1805         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
1808 if test "x$mono_feature_disable_generics" = "xyes"; then
1809         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
1810         AC_MSG_NOTICE([Disabled Generics Support])
1813 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
1814         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
1815         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
1818 if test "x$mono_feature_disable_portability" = "xyes"; then
1819         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
1820         AC_MSG_NOTICE([Disabled IO Portability layer])
1823 if test "x$mono_feature_disable_attach" = "xyes"; then
1824         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
1825         AC_MSG_NOTICE([Disabled agent attach])
1828 if test "x$mono_feature_disable_verifier" = "xyes"; then
1829         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
1830         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
1833 if test "x$mono_feature_disable_jit" = "xyes"; then
1834         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode or interpreter will be supported by the runtime.])
1835         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT or interpreter will be supported])
1838 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
1840 if test "x$mono_feature_disable_interpreter" = "xyes"; then
1841         AC_DEFINE(DISABLE_INTERPRETER, 1, [Disable the interpreter.])
1842         AC_MSG_NOTICE([Disabled the interpreter])
1845 AM_CONDITIONAL(DISABLE_INTERPRETER, test x$mono_feature_disable_interpreter = xyes)
1847 if test "x$mono_feature_disable_interpreter" != "xyes" -o "x$mono_feature_disable_jit" != "xyes"; then
1848         AC_DEFINE(ENABLE_ILGEN, 1, [Some VES is available at runtime])
1851 AM_CONDITIONAL(ENABLE_ILGEN, test x$mono_feature_disable_interpreter != xyes -o x$mono_feature_disable_jit != xyes)
1853 if test "x$mono_feature_disable_simd" = "xyes"; then
1854         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
1855         AC_MSG_NOTICE([Disabled SIMD support])
1858 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
1859         AC_DEFINE(DISABLE_DEBUGGER_AGENT, 1, [Disable Soft Debugger Agent.])
1860         AC_MSG_NOTICE([Disabled Soft Debugger.])
1863 AM_CONDITIONAL(DISABLE_DEBUGGER_AGENT, test x$mono_feature_disable_debugger_agent = xyes)
1865 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
1866         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
1867         AC_MSG_NOTICE([Disabled Performance Counters.])
1869 if test "x$mono_feature_disable_normalization" = "xyes"; then
1870         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
1871         AC_MSG_NOTICE([Disabled String normalization support.])
1874 #TODO: remove assembly_remapping feature name once everyone is using desktop_loader
1875 if test "x$mono_feature_disable_assembly_remapping" = "xyes" || test "x$mono_feature_disable_desktop_loader" = "xyes"; then
1876         AC_DEFINE(DISABLE_DESKTOP_LOADER, 1, [Disable desktop assembly loader semantics.])
1877         AC_MSG_NOTICE([Disabled desktop assembly loader semantics.])
1880 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
1881         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
1882         AC_MSG_NOTICE([Disabled Shared perfcounters.])
1885 if test "x$mono_feature_disable_appdomains" = "xyes"; then
1886         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
1887         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
1890 if test "x$mono_feature_disable_remoting" = "xyes"; then
1891         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
1892         AC_MSG_NOTICE([Disabled remoting])
1895 if test "x$mono_feature_disable_security" = "xyes"; then
1896         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
1897         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
1900 if test "x$mono_feature_disable_lldb" = "xyes"; then
1901         AC_DEFINE(DISABLE_LLDB, 1, [Disable support code for the LLDB plugin.])
1902         AC_MSG_NOTICE([Disabled LLDB plugin support code.])
1905 if test "x$mono_feature_disable_mdb" = "xyes"; then
1906         AC_DEFINE(DISABLE_MDB, 1, [Disable support for .mdb symbol files.])
1907         AC_MSG_NOTICE([Disabled support for .mdb symbol files.])
1910 if test "x$mono_feature_disable_assert_messages" = "xyes"; then
1911         AC_DEFINE(DISABLE_ASSERT_MESSAGES, 1, [Disable assertion messages.])
1912         AC_MSG_NOTICE([Disabled assertion messages.])
1915 if test "x$mono_feature_disable_cleanup" = "xyes"; then
1916         AC_DEFINE(DISABLE_CLEANUP, 1, [Disable runtime cleanup.])
1917         AC_MSG_NOTICE([Disabled runtime cleanup.])
1920 if test "x$mono_feature_disable_sgen_marksweep_conc" = "xyes"; then
1921         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_CONC, 1, [Disable concurrent gc support in SGEN.])
1922         AC_MSG_NOTICE([Disabled concurrent gc support in SGEN.])
1926 if test "x$mono_feature_disable_sgen_split_nursery" = "xyes"; then
1927         AC_DEFINE(DISABLE_SGEN_SPLIT_NURSERY, 1, [Disable minor=split support in SGEN.])
1928         AC_MSG_NOTICE([Disabled minor=split support in SGEN.])
1931 if test "x$mono_feature_disable_sgen_gc_bridge" = "xyes"; then
1932         AC_DEFINE(DISABLE_SGEN_GC_BRIDGE, 1, [Disable gc bridge support in SGEN.])
1933         AC_MSG_NOTICE([Disabled gc bridge support in SGEN.])
1936 if test "x$mono_feature_disable_sgen_debug_helpers" = "xyes"; then
1937         AC_DEFINE(DISABLE_SGEN_DEBUG_HELPERS, 1, [Disable debug helpers in SGEN.])
1938         AC_MSG_NOTICE([Disabled debug helpers in SGEN.])
1941 if test "x$mono_feature_disable_sockets" = "xyes"; then
1942         AC_DEFINE(DISABLE_SOCKETS, 1, [Disable sockets])
1943         AC_MSG_NOTICE([Disabled sockets])
1946 if test "x$mono_feature_disable_gac" = "xyes"; then
1947         AC_DEFINE(DISABLE_GAC, 1, [Disable GAC])
1948         AC_MSG_NOTICE([Disabled GAC support])
1951 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
1952 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
1954 has_extension_module=no
1955 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
1957         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
1958                 if test x$extension = xdefault ; then
1959                         has_extension_module=yes;
1960                 fi
1961         done
1962         if test x$enable_extension_module = xyes; then
1963                 has_extension_module=yes;
1964         fi
1965 ], [])
1967 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
1969 if test x$has_extension_module != xno ; then
1970         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
1971         AC_MSG_NOTICE([Enabling mono extension module.])
1974 # Deprecated
1975 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
1977 AC_MSG_CHECKING(for visibility __attribute__)
1978 AC_COMPILE_IFELSE([
1979         AC_LANG_SOURCE([[
1980                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
1981                 int main () { doit (); return 0; }
1982         ]])
1983 ], [
1984    have_visibility_hidden=yes
1985    AC_MSG_RESULT(yes)
1986 ], [
1987    have_visibility_hidden=no
1988    AC_MSG_RESULT(no)
1992 dnl Boehm GC configuration
1995 AC_ARG_WITH(libgc,   [  --with-libgc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_libgc],[libgc=included])
1997 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1998 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
2000 if test "x$support_boehm" = "xyes"; then
2002         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
2003         if test x$enable_parallel_mark = xyes; then
2004                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
2005         fi
2007         gc_msg=""
2008         LIBGC_CPPFLAGS=
2009         LIBGC_LIBS=
2010         LIBGC_STATIC_LIBS=
2011         libgc_dir=
2012         case "x$libgc" in
2013                 xincluded)
2014                         if test "x$support_boehm" = "xyes"; then
2015                                 libgc_dir=libgc
2016                         fi
2018                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
2019                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
2020                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
2022                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
2024                         if test x$target_win32 = xyes; then
2025                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
2026                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
2027                         fi
2029                         gc_msg="Included Boehm GC with typed GC"
2030                         if test x$enable_parallel_mark = xyes; then
2031                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
2032                                 gc_msg="$gc_msg and parallel mark"
2033                         else
2034                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
2035                         fi
2036                         ;;
2038                 xboehm|xbohem|xyes)
2039                         AC_MSG_WARN("External Boehm is no longer supported")
2040                         ;;
2042                 xsgen)
2043                         AC_MSG_WARN("Use --with-sgen instead, --with-libgc= controls Boehm configuration")
2044                         ;;
2046                 xnone)
2047                         AC_MSG_WARN("Compiling mono without GC.")
2048                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
2049                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
2050                         gc_msg="none"
2051                         ;;
2052                 *)
2053                         AC_MSG_ERROR([Invalid argument $libgc to --with-libgc.])
2054                         ;;
2055         esac
2057         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
2058         if test "x$large_heap" = "xyes"; then
2059            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
2060         fi
2062         AC_SUBST(LIBGC_CPPFLAGS)
2063         AC_SUBST(LIBGC_LIBS)
2064         AC_SUBST(LIBGC_STATIC_LIBS)
2065         AC_SUBST(libgc_dir)
2066         AC_SUBST(BOEHM_DEFINES)
2069 AM_CONDITIONAL(SUPPORT_NULLGC, test "x$libgc" = "xnone")
2072 dnl End of Boehm GC Configuration
2075 dnl *************************************
2076 dnl *** Checks for zero length arrays ***
2077 dnl *************************************
2078 AC_MSG_CHECKING(whether $CC supports zero length arrays)
2079 AC_TRY_COMPILE([
2080         struct s {
2081                 int  length;
2082                 char data [0];
2083         };
2084 ], [], [
2085         AC_MSG_RESULT(yes)
2086         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
2087 ], [
2088         AC_MSG_RESULT(no)
2089         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
2092 dnl ***********************************
2093 dnl *** Checks for signals
2094 dnl ***********************************
2095 AC_CHECK_HEADERS(signal.h)
2096 AC_CHECK_FUNCS(sigaction)
2097 AC_CHECK_FUNCS(kill)
2098 AC_CHECK_FUNCS(signal)
2100 # signal() is declared inline in Android headers
2101 # so we need to workaround it by overriding the check.
2102 if test x$platform_android = xyes; then
2103         AC_DEFINE(HAVE_SIGNAL,1)
2106 # `target_ios=yes` does not detect watch devices and fails when cross-compiling
2107 AC_MONO_APPLE_TARGET(TARGET_OS_IPHONE, [mono_native_platform_ios=yes])
2109 if test x$host_win32 = xno; then
2110         dnl *************************************
2111         dnl *** Checks for time capabilities ***
2112         dnl *************************************
2114         AC_MSG_CHECKING(for CLOCK_MONOTONIC)
2115         AC_TRY_COMPILE([#include <time.h>], [
2116                 const int foo = CLOCK_MONOTONIC;
2117         ],[
2118                 AC_MSG_RESULT(yes)
2119                 AC_DEFINE(HAVE_CLOCK_MONOTONIC, 1, [CLOCK_MONOTONIC])
2120         ], [
2121                 AC_MSG_RESULT(no)
2122         ])
2124         AC_MSG_CHECKING(for CLOCK_MONOTONIC_COARSE)
2125         AC_TRY_COMPILE([#include <time.h>], [
2126                 const int foo = CLOCK_MONOTONIC_COARSE;
2127         ],[
2128                 AC_MSG_RESULT(yes)
2129                 AC_DEFINE(HAVE_CLOCK_MONOTONIC_COARSE, 1, [CLOCK_MONOTONIC_COARSE])
2130         ], [
2131                 AC_MSG_RESULT(no)
2132         ])
2134         AC_MSG_CHECKING(for CLOCK_REALTIME)
2135         AC_TRY_COMPILE([#include <time.h>], [
2136                 const int foo = CLOCK_REALTIME;
2137         ],[
2138                 AC_MSG_RESULT(yes)
2139                 AC_DEFINE(HAVE_CLOCK_REALTIME, 1, [CLOCK_REALTIME])
2140         ], [
2141                 AC_MSG_RESULT(no)
2142         ])
2144         AC_CHECK_FUNC(mach_absolute_time, [AC_DEFINE(HAVE_MACH_ABSOLUTE_TIME, 1, [mach_absolute_time])])
2145         AC_CHECK_FUNC(gethrtime, [AC_DEFINE(HAVE_GETHRTIME, 1, [gethrtime])])
2146         AC_CHECK_FUNC(read_real_time, [AC_DEFINE(HAVE_READ_REAL_TIME, 1, [read_real_time])])
2147         AC_CHECK_FUNC(mach_timebase_info, [AC_DEFINE(HAVE_MACH_TIMEBASE_INFO, 1, [mach_timebase_info])])
2148         AC_CHECK_FUNC(futimes,            [AC_DEFINE(HAVE_FUTIMES, 1, [futimes])])
2149         AC_CHECK_FUNC(futimens,           [AC_DEFINE(HAVE_FUTIMENS, 1, [futimens])])
2151         dnl hires monotonic clock support
2152         AC_SEARCH_LIBS(clock_gettime, rt)
2153         AC_CHECK_FUNCS(clock_nanosleep)
2155         dnl dynamic loader support
2156         AC_CHECK_FUNC(dlopen, DL_LIB="",
2157                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
2158         )
2159         if test x$dl_support = xno; then
2160                 AC_MSG_WARN([No dynamic loading support available])
2161         else
2162                 LIBS="$LIBS $DL_LIB"
2163                 dnl from glib's configure.ac
2164                 if test "x$cross_compiling" = "xyes"; then
2165                    AC_MSG_RESULT(cross compiling, assuming no)
2166                    mono_cv_uscore=no
2167                 else
2168                         AC_CACHE_CHECK([for preceeding underscore in symbols],
2169                           mono_cv_uscore,[
2170                           AC_TRY_RUN([#include <dlfcn.h>
2171                           int mono_underscore_test (void) { return 42; }
2172                           int main() {
2173                             void *f1 = (void*)0, *f2 = (void*)0, *handle;
2174                             handle = dlopen ((void*)0, 0);
2175                             if (handle) {
2176                               f1 = dlsym (handle, "mono_underscore_test");
2177                               f2 = dlsym (handle, "_mono_underscore_test");
2178                             } return (!f2 || f1);
2179                           }],
2180                                 [mono_cv_uscore=yes],
2181                                 [mono_cv_uscore=no],
2182                           [])
2183                   ])
2184                 fi
2185                 if test "x$mono_cv_uscore" = "xyes"; then
2186                         AC_DEFINE(MONO_DL_NEED_USCORE, 1, [Does dlsym require leading underscore.])
2187                 fi
2188                 AC_CHECK_FUNC(dlerror)
2189         fi
2191         dnl ******************************************************************
2192         dnl *** Checks for the IKVM JNI interface library                  ***
2193         dnl ******************************************************************
2194         AC_ARG_WITH(ikvm-native, [  --with-ikvm-native=yes,no      build the IKVM JNI interface library (defaults to yes)],[with_ikvm_native=$withval],[with_ikvm_native=$ikvm_native])
2196         ikvm_native_dir=
2197         if test x$with_ikvm_native = xyes; then
2198                 ikvm_native_dir=ikvm-native
2199                 jdk_headers_found="IKVM Native"
2200         fi
2202         AC_SUBST(ikvm_native_dir)
2204         AC_CHECK_HEADERS(execinfo.h)
2206         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
2208         AC_CHECK_FUNCS(getgrgid_r)
2209         AC_CHECK_FUNCS(getgrnam_r)
2210         AC_CHECK_FUNCS(getresuid)
2211         AC_CHECK_FUNCS(setresuid)
2212         AC_CHECK_FUNCS(kqueue)
2213         AC_CHECK_FUNCS(backtrace_symbols)
2214         AC_CHECK_FUNCS(mkstemp)
2215         AC_CHECK_FUNCS(mmap)
2216         AC_CHECK_FUNCS(madvise)
2217         AC_CHECK_FUNCS(getrusage)
2218         AC_CHECK_FUNCS(getpriority)
2219         AC_CHECK_FUNCS(setpriority)
2220         AC_CHECK_FUNCS(dl_iterate_phdr)
2221         AC_CHECK_FUNCS(dladdr)
2222         AC_CHECK_FUNCS(sysconf)
2223         AC_CHECK_FUNCS(getrlimit)
2224         AC_CHECK_FUNCS(prctl)
2225         AC_CHECK_FUNCS(arc4random)
2226         AC_CHECK_FUNCS(nl_langinfo)
2228         AC_CHECK_FUNCS(sched_getaffinity)
2229         AC_CHECK_FUNCS(sched_setaffinity)
2230         AC_CHECK_FUNCS(sched_getcpu)
2232         if test x$platform_android != xyes; then
2233                 AC_CHECK_FUNCS(getpwnam_r)
2234                 AC_CHECK_FUNCS(getpwuid_r)
2235         fi
2237         AC_CHECK_FUNCS(readlink)
2238         AC_CHECK_FUNCS(chmod)
2239         AC_CHECK_FUNCS(lstat)
2240         AC_CHECK_FUNCS(getdtablesize)
2242         AC_CHECK_FUNCS(ftruncate)
2243         AC_CHECK_FUNCS(msync)
2245         AC_CHECK_FUNCS(gethostname getpeername)
2246         AC_CHECK_FUNCS(utime utimes)
2248         AC_CHECK_FUNCS(openlog closelog)
2249         AC_CHECK_FUNCS(atexit)
2250         AC_CHECK_FUNCS(popen)
2252         AC_FUNC_STRERROR_R()
2254         dnl ****************************************************************
2255         dnl *** Check for sched_setaffinity from glibc versions before   ***
2256         dnl *** 2.3.4. The older versions of the function only take 2    ***
2257         dnl *** parameters, not 3.                                       ***
2258         dnl ***                                                          ***
2259         dnl *** Because the interface change was not made in a minor     ***
2260         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
2261         dnl *** won't always indicate the interface sched_affinity has.  ***
2262         dnl ****************************************************************
2263         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
2264         AC_TRY_COMPILE([#include <sched.h>], [
2265             int mask = 1; 
2266             sched_setaffinity(0, &mask);
2267         ], [
2268                 # Yes, we have it...
2269                 AC_MSG_RESULT(yes)
2270                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
2271         ], [
2272                 # We have the new, three-parameter version
2273                 AC_MSG_RESULT(no)
2274         ])
2275         AC_TRY_COMPILE([#include <sched.h>], [
2276              CPU_COUNT((void *) 0);
2277         ], [
2278                 AC_MSG_RESULT(yes)
2279                 AC_DEFINE(GLIBC_HAS_CPU_COUNT, 1, [GLIBC has CPU_COUNT macro in sched.h])
2280         ], [
2281                 # We have the new, three-parameter version
2282                 AC_MSG_RESULT(no)
2283         ])
2285         dnl ******************************************************************
2286         dnl *** Check for large file support                               ***
2287         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
2288         dnl ******************************************************************
2289         
2290         # Check that off_t can represent 2**63 - 1 correctly, working around
2291         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
2292         # CPPFLAGS and sets $large_offt to yes if the test succeeds
2293         large_offt=no
2294         AC_DEFUN([LARGE_FILES], [
2295                 large_CPPFLAGS=$CPPFLAGS
2296                 CPPFLAGS="$CPPFLAGS $1"
2297                 AC_TRY_COMPILE([
2298                         #include <sys/types.h>
2299                         #include <limits.h>
2300                 ], [
2301                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
2302                         #define COMPILE_TIME_ASSERT(pred) \
2303                                 switch(0){case 0:case pred:;}
2304                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
2305                 ], [
2306                         AC_MSG_RESULT(ok)
2307                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
2308                         large_CPPFLAGS="$large_CPPFLAGS $1"
2309                         large_offt=yes
2310                 ], [
2311                         AC_MSG_RESULT(no)
2312                 ])
2313                 CPPFLAGS=$large_CPPFLAGS
2314         ])
2316         AC_MSG_CHECKING(if off_t is 64 bits wide)
2317         LARGE_FILES("")
2318         if test $large_offt = no; then
2319                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
2320                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
2321         fi
2322         if test $large_offt = no; then
2323                 AC_MSG_WARN([No 64 bit file size support available])
2324         fi
2325         
2326         dnl *****************************
2327         dnl *** Checks for libsocket  ***
2328         dnl *****************************
2329         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
2331         case "$host" in
2332                 *-*-*freebsd*)
2333                         dnl *****************************
2334                         dnl *** Checks for libinotify ***
2335                         dnl *****************************
2336                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
2337         esac
2339         dnl *******************************
2340         dnl *** Checks for MSG_NOSIGNAL ***
2341         dnl *******************************
2342         AC_MSG_CHECKING(for MSG_NOSIGNAL)
2343         AC_TRY_COMPILE([#include <sys/socket.h>], [
2344                 int f = MSG_NOSIGNAL;
2345         ], [
2346                 # Yes, we have it...
2347                 AC_MSG_RESULT(yes)
2348                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
2349         ], [
2350                 # We'll have to use signals
2351                 AC_MSG_RESULT(no)
2352         ])
2354         dnl *****************************
2355         dnl *** Checks for IPPROTO_IP ***
2356         dnl *****************************
2357         AC_MSG_CHECKING(for IPPROTO_IP)
2358         AC_TRY_COMPILE([#include <netinet/in.h>], [
2359                 int level = IPPROTO_IP;
2360         ], [
2361                 # Yes, we have it...
2362                 AC_MSG_RESULT(yes)
2363                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
2364         ], [
2365                 # We'll have to use getprotobyname
2366                 AC_MSG_RESULT(no)
2367         ])
2369         dnl *******************************
2370         dnl *** Checks for IPPROTO_IPV6 ***
2371         dnl *******************************
2372         AC_MSG_CHECKING(for IPPROTO_IPV6)
2373         AC_TRY_COMPILE([#include <netinet/in.h>], [
2374                 int level = IPPROTO_IPV6;
2375         ], [
2376                 # Yes, we have it...
2377                 AC_MSG_RESULT(yes)
2378                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
2379         ], [
2380                 # We'll have to use getprotobyname
2381                 AC_MSG_RESULT(no)
2382         ])
2384         dnl ******************************
2385         dnl *** Checks for IPPROTO_TCP ***
2386         dnl ******************************
2387         AC_MSG_CHECKING(for IPPROTO_TCP)
2388         AC_TRY_COMPILE([#include <netinet/in.h>], [
2389                 int level = IPPROTO_TCP;
2390         ], [
2391                 # Yes, we have it...
2392                 AC_MSG_RESULT(yes)
2393                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
2394         ], [
2395                 # We'll have to use getprotobyname
2396                 AC_MSG_RESULT(no)
2397         ])
2399         dnl *****************************
2400         dnl *** Checks for SOL_IP     ***
2401         dnl *****************************
2402         AC_MSG_CHECKING(for SOL_IP)
2403         AC_TRY_COMPILE([#include <netdb.h>], [
2404                 int level = SOL_IP;
2405         ], [
2406                 # Yes, we have it...
2407                 AC_MSG_RESULT(yes)
2408                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
2409         ], [
2410                 # We'll have to use getprotobyname
2411                 AC_MSG_RESULT(no)
2412         ])
2414         dnl *****************************
2415         dnl *** Checks for SOL_IPV6     ***
2416         dnl *****************************
2417         AC_MSG_CHECKING(for SOL_IPV6)
2418         AC_TRY_COMPILE([#include <netdb.h>], [
2419                 int level = SOL_IPV6;
2420         ], [
2421                 # Yes, we have it...
2422                 AC_MSG_RESULT(yes)
2423                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
2424         ], [
2425                 # We'll have to use getprotobyname
2426                 AC_MSG_RESULT(no)
2427         ])
2429         dnl *****************************
2430         dnl *** Checks for SOL_TCP    ***
2431         dnl *****************************
2432         AC_MSG_CHECKING(for SOL_TCP)
2433         AC_TRY_COMPILE([#include <netdb.h>], [
2434                 int level = SOL_TCP;
2435         ], [
2436                 # Yes, we have it...
2437                 AC_MSG_RESULT(yes)
2438                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
2439         ], [
2440                 # We'll have to use getprotobyname
2441                 AC_MSG_RESULT(no)
2442         ])
2444         dnl *****************************
2445         dnl *** Checks for IP_PKTINFO ***
2446         dnl *****************************
2447         AC_MSG_CHECKING(for IP_PKTINFO)
2448         AC_TRY_COMPILE([#include <linux/in.h>], [
2449                 int level = IP_PKTINFO;
2450         ], [
2451                 # Yes, we have it...
2452                 AC_MSG_RESULT(yes)
2453                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
2454         ], [
2455                 AC_MSG_RESULT(no)
2456         ])
2458         dnl *****************************
2459         dnl *** Checks for IPV6_PKTINFO ***
2460         dnl *****************************
2461         AC_MSG_CHECKING(for IPV6_PKTINFO)
2462         AC_TRY_COMPILE([#include <netdb.h>], [
2463                 int level = IPV6_PKTINFO;
2464         ], [
2465                 # Yes, we have it...
2466                 AC_MSG_RESULT(yes)
2467                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
2468         ], [
2469                 AC_MSG_RESULT(no)
2470         ])
2472         dnl **********************************
2473         dnl *** Checks for IP_DONTFRAG     ***
2474         dnl **********************************
2475         AC_MSG_CHECKING(for IP_DONTFRAG)
2476         AC_TRY_COMPILE([#include <netinet/in.h>], [
2477                 int level = IP_DONTFRAG;
2478         ], [
2479                 # Yes, we have it...
2480                 AC_MSG_RESULT(yes)
2481                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
2482         ], [
2483                 AC_MSG_RESULT(no)
2484         ])
2486         dnl **********************************
2487         dnl *** Checks for IP_DONTFRAGMENT ***
2488         dnl **********************************
2489         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
2490         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
2491                 int level = IP_DONTFRAGMENT;
2492         ], [
2493                 # Yes, we have it...
2494                 AC_MSG_RESULT(yes)
2495                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
2496         ], [
2497                 AC_MSG_RESULT(no)
2498         ])
2500         dnl **********************************
2501         dnl *** Checks for IP_MTU_DISCOVER ***
2502         dnl **********************************
2503         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
2504         AC_TRY_COMPILE([#include <linux/in.h>], [
2505                 int level = IP_MTU_DISCOVER;
2506         ], [
2507                 # Yes, we have it...
2508                 AC_MSG_RESULT(yes)
2509                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
2510         ], [
2511                 AC_MSG_RESULT(no)
2512         ])
2514         dnl **********************************
2515         dnl *** Checks for  IP_PMTUDISC_DO ***
2516         dnl **********************************
2517         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
2518         AC_TRY_COMPILE([#include <linux/in.h>], [
2519                 int level = IP_PMTUDISC_DO;
2520         ], [
2521                 # Yes, we have it...
2522                 AC_MSG_RESULT(yes)
2523                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
2524         ], [
2525                 AC_MSG_RESULT(no)
2526         ])
2528         dnl *********************************
2529         dnl *** Check for struct ip_mreqn ***
2530         dnl *********************************
2531         AC_MSG_CHECKING(for struct ip_mreqn)
2532         AC_TRY_COMPILE([#include <netinet/in.h>], [
2533                 struct ip_mreqn mreq;
2534                 mreq.imr_address.s_addr = 0;
2535         ], [
2536                 # Yes, we have it...
2537                 AC_MSG_RESULT(yes)
2538                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
2539         ], [
2540                 # We'll just have to try and use struct ip_mreq
2541                 AC_MSG_RESULT(no)
2542                 AC_MSG_CHECKING(for struct ip_mreq)
2543                 AC_TRY_COMPILE([#include <netinet/in.h>], [
2544                         struct ip_mreq mreq;
2545                         mreq.imr_interface.s_addr = 0;
2546                 ], [
2547                         # Yes, we have it...
2548                         AC_MSG_RESULT(yes)
2549                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
2550                 ], [
2551                         # No multicast support
2552                         AC_MSG_RESULT(no)
2553                 ])
2554         ])
2555         
2556         dnl **********************************
2557         dnl *** Check for getaddrinfo ***
2558         dnl **********************************
2559         AC_MSG_CHECKING(for getaddrinfo)
2560                 AC_TRY_LINK([
2561                 #include <stdio.h>
2562                 #include <netdb.h>
2563         ], [
2564                 getaddrinfo(NULL,NULL,NULL,NULL);
2565         ], [
2566                 # Yes, we have it...
2567                 AC_MSG_RESULT(yes)
2568                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2569         ], [
2570                 AC_MSG_RESULT(no)
2571         ])
2573         dnl **********************************
2574         dnl *** Check for gethostbyname2_r ***
2575         dnl **********************************
2576         AC_MSG_CHECKING(for gethostbyname2_r)
2577                 AC_TRY_LINK([
2578                 #include <stdio.h>
2579                 #include <netdb.h>
2580         ], [
2582                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
2583         ], [
2584                 # Yes, we have it...
2585                 AC_MSG_RESULT(yes)
2586                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
2587         ], [
2588                 AC_MSG_RESULT(no)
2589         ])
2591         dnl **********************************
2592         dnl *** Check for gethostbyname2 ***
2593         dnl **********************************
2594         AC_MSG_CHECKING(for gethostbyname2)
2595                 AC_TRY_LINK([
2596                 #include <stdio.h>
2597                 #include <netdb.h>
2598         ], [
2599                 gethostbyname2(NULL,0);
2600         ], [
2601                 # Yes, we have it...
2602                 AC_MSG_RESULT(yes)
2603                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
2604         ], [
2605                 AC_MSG_RESULT(no)
2606         ])
2608         dnl **********************************
2609         dnl *** Check for gethostbyname ***
2610         dnl **********************************
2611         AC_MSG_CHECKING(for gethostbyname)
2612                 AC_TRY_LINK([
2613                 #include <stdio.h>
2614                 #include <netdb.h>
2615         ], [
2616                 gethostbyname(NULL);
2617         ], [
2618                 # Yes, we have it...
2619                 AC_MSG_RESULT(yes)
2620                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2621         ], [
2622                 AC_MSG_RESULT(no)
2623         ])
2625         dnl **********************************
2626         dnl *** Check for getprotobyname ***
2627         dnl **********************************
2628         AC_MSG_CHECKING(for getprotobyname)
2629                 AC_TRY_LINK([
2630                 #include <stdio.h>
2631                 #include <netdb.h>
2632         ], [
2633                 getprotobyname(NULL);
2634         ], [
2635                 # Yes, we have it...
2636                 AC_MSG_RESULT(yes)
2637                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2638         ], [
2639                 AC_MSG_RESULT(no)
2640         ])
2642         dnl **********************************
2643         dnl *** Check for getprotobyname_r ***
2644         dnl **********************************
2645         AC_MSG_CHECKING(for getprotobyname_r)
2646                 AC_TRY_LINK([
2647                 #include <stdio.h>
2648                 #include <netdb.h>
2649         ], [
2650                 getprotobyname_r(NULL, NULL, NULL, 0, NULL);
2651         ], [
2652                 # Yes, we have it...
2653                 AC_MSG_RESULT(yes)
2654                 AC_DEFINE(HAVE_GETPROTOBYNAME_R, 1, [Have getprotobyname_r])
2655         ], [
2656                 AC_MSG_RESULT(no)
2657         ])
2659         dnl **********************************
2660         dnl *** Check for getnameinfo ***
2661         dnl **********************************
2662         AC_MSG_CHECKING(for getnameinfo)
2663                 AC_TRY_LINK([
2664                 #include <stdio.h>
2665                 #include <netdb.h>
2666         ], [
2667                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2668         ], [
2669                 # Yes, we have it...
2670                 AC_MSG_RESULT(yes)
2671                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2672         ], [
2673                 AC_MSG_RESULT(no)
2674         ])
2677         dnl **********************************
2678         dnl *** Check for inet_ntop ***
2679         dnl **********************************
2680         AC_MSG_CHECKING(for inet_ntop)
2681                 AC_TRY_LINK([
2682                 #include <stdio.h>
2683                 #include <arpa/inet.h>
2684         ], [
2685                 inet_ntop (0, NULL, NULL, 0);
2686         ], [
2687                 # Yes, we have it...
2688                 AC_MSG_RESULT(yes)
2689                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2690         ], [
2691                 AC_MSG_RESULT(no)
2692         ])
2694         dnl *****************************
2695         dnl *** Checks for libnsl     ***
2696         dnl *****************************
2697         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
2699         AC_CHECK_FUNCS(inet_pton inet_aton)
2701         dnl *****************************
2702         dnl *** Checks for libxnet    ***
2703         dnl *****************************
2704         case "${host}" in
2705                 *solaris* )
2706                         AC_MSG_CHECKING(for Solaris XPG4 support)
2707                         if test -f /usr/lib/libxnet.so; then
2708                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
2709                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
2710                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
2711                                 LIBS="$LIBS -lxnet"
2712                                 AC_MSG_RESULT(yes)
2713                         else
2714                                 AC_MSG_RESULT(no)
2715                         fi
2717                         if test "$GCC" = "yes"; then
2718                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
2719                         fi
2720                 ;;
2721         esac
2723         dnl *****************************
2724         dnl *** Checks for libpthread ***
2725         dnl *****************************
2726 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
2727 # and libpthread does not exist
2729         case "${host}" in
2730                 *-*-*haiku*)
2731                         dnl Haiku has pthread in libroot (libc equiv)
2732                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS")
2733                 ;;
2734                 *-*-*freebsd*)
2735                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
2736                 ;;
2737                 *-*-*openbsd*)
2738                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
2739                 ;;
2740                 *)
2741                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
2742                 ;;
2743         esac
2744         AC_CHECK_HEADERS(pthread.h)
2745         AC_CHECK_HEADERS(pthread_np.h)
2746         AC_CHECK_FUNCS(pthread_mutex_timedlock)
2747         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_getname_np pthread_setname_np pthread_cond_timedwait_relative_np)
2748         AC_CHECK_FUNCS(pthread_kill)
2749         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
2750         AC_TRY_COMPILE([ #include <pthread.h>], [
2751                 pthread_mutexattr_t attr;
2752                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
2753         ], [
2754                 AC_MSG_RESULT(ok)
2755         ], [
2756                 AC_MSG_RESULT(no)
2757                 AC_ERROR(Posix system lacks support for recursive mutexes)
2758         ])
2759         AC_CHECK_FUNCS(pthread_attr_setstacksize)
2760         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
2761         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
2762         dnl check that pthread_mutexattr_setprotocol is declared
2763         AC_CHECK_DECLS([pthread_mutexattr_setprotocol], [], [], [[#include <pthread.h>]])
2764         AC_CHECK_FUNCS(mincore mlock munlock)
2766         dnl ***********************************
2767         dnl *** Checks for working __thread ***
2768         dnl ***********************************
2769         AC_MSG_CHECKING(for working __thread)
2770         if test "x$with_tls" != "x__thread"; then
2771                 AC_MSG_RESULT(disabled)
2772         elif test "x$cross_compiling" = "xyes"; then
2773                 AC_MSG_RESULT(cross compiling, assuming yes)
2774         else
2775                 AC_TRY_RUN([
2776                         #if defined(__APPLE__) && defined(__clang__)
2777                         #error "__thread does not currently work with clang on Mac OS X"
2778                         #endif
2779                         
2780                         #include <unistd.h>
2781                         #include <pthread.h>
2782                         __thread int i;
2783                         static int res1, res2;
2785                         void thread_main (void *arg)
2786                         {
2787                                 i = arg;
2788                                 sleep (1);
2789                                 if (arg == 1)
2790                                         res1 = (i == arg);
2791                                 else
2792                                         res2 = (i == arg);
2793                         }
2795                         int main () {
2796                                 pthread_t t1, t2;
2798                                 i = 5;
2800                                 pthread_create (&t1, NULL, thread_main, 1);
2801                                 pthread_create (&t2, NULL, thread_main, 2);
2803                                 pthread_join (t1, NULL);
2804                                 pthread_join (t2, NULL);
2806                                 return !(res1 + res2 == 2);
2807                         }
2808                 ], [
2809                                 AC_MSG_RESULT(yes)
2810                 ], [
2811                                 AC_MSG_RESULT(no)
2812                                 with_tls=pthread
2813                 ])
2814         fi
2816         dnl **************************************
2817         dnl *** Checks for working sigaltstack ***
2818         dnl **************************************
2819         AC_MSG_CHECKING(for working sigaltstack)
2820         if test "x$with_sigaltstack" != "xyes"; then
2821                 AC_MSG_RESULT(disabled)
2822         elif test "x$cross_compiling" = "xyes"; then
2823                 AC_MSG_RESULT(cross compiling, assuming no)
2824                 with_sigaltstack=no
2825         else
2826                 AC_TRY_RUN([
2827                         #include <stdio.h>
2828                         #include <stdlib.h>
2829                         #include <unistd.h>
2830                         #include <signal.h>
2831                         #include <pthread.h>
2832                         #include <sys/wait.h>
2833                         #if defined(__FreeBSD__) || defined(__NetBSD__)
2834                         #define SA_STACK SA_ONSTACK
2835                         #endif
2836                         static void
2837                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
2838                         {
2839                                 exit (0);
2840                         }
2842                         volatile char*__ptr = NULL;
2843                         static void *
2844                         loop (void *ignored)
2845                         {
2846                                 *__ptr = 0;
2847                                 return NULL;
2848                         }
2850                         static void
2851                         child ()
2852                         {
2853                                 struct sigaction sa;
2854                                 stack_t sas;
2855                                 pthread_t id;
2856                                 pthread_attr_t attr;
2858                                 sa.sa_sigaction = sigsegv_signal_handler;
2859                                 sigemptyset (&sa.sa_mask);
2860                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
2861                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
2862                                         perror ("sigaction");
2863                                         return;
2864                                 }
2866                                 /* x86 darwin deliver segfaults using SIGBUS */
2867                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
2868                                         perror ("sigaction");
2869                                         return;
2870                                 }
2871                                 sas.ss_sp = malloc (SIGSTKSZ);
2872                                 sas.ss_size = SIGSTKSZ;
2873                                 sas.ss_flags = 0;
2874                                 if (sigaltstack (&sas, NULL) == -1) {
2875                                         perror ("sigaltstack");
2876                                         return;
2877                                 }
2879                                 pthread_attr_init (&attr);
2880                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
2881                                         printf ("pthread_create\n");
2882                                         return;
2883                                 }
2885                                 sleep (100);
2886                         }
2888                         int
2889                         main ()
2890                         {
2891                                 pid_t son;
2892                                 int status;
2893                                 int i;
2895                                 son = fork ();
2896                                 if (son == -1) {
2897                                         return 1;
2898                                 }
2900                                 if (son == 0) {
2901                                         child ();
2902                                         return 0;
2903                                 }
2905                                 for (i = 0; i < 300; ++i) {
2906                                         waitpid (son, &status, WNOHANG);
2907                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
2908                                                 return 0;
2909                                         usleep (10000);
2910                                 }
2912                                 kill (son, SIGKILL);
2913                                 return 1;
2914                         }
2916                 ], [
2917                                 AC_MSG_RESULT(yes)
2918                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
2919                 ], [
2920                                 with_sigaltstack=no
2921                                 AC_MSG_RESULT(no)
2922                 ])
2923         fi
2925         dnl ********************************
2926         dnl *** Checks for semaphore lib ***
2927         dnl ********************************
2928         # 'Real Time' functions on Solaris
2929         # posix4 on Solaris 2.6
2930         # pthread (first!) on Linux
2931         AC_SEARCH_LIBS(sem_init, pthread rt posix4) 
2933         AC_SEARCH_LIBS(shm_open, pthread rt posix4) 
2934         AC_CHECK_FUNCS(shm_open)
2936         dnl ********************************
2937         dnl ***  Checks for gettext lib  ***
2938         dnl ********************************
2939         # This is needed for some hackery for AIX;
2940         # Mono itself doesn't use it, but DllMap includes it
2941         AC_SEARCH_LIBS([gettext], [intl])
2943         dnl ********************************
2944         dnl *** Checks for timezone stuff **
2945         dnl ********************************
2946         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
2947                 AC_TRY_COMPILE([
2948                         #include <time.h>
2949                         ], [
2950                         struct tm tm;
2951                         tm.tm_gmtoff = 1;
2952                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
2953         if test $ac_cv_struct_tm_gmtoff = yes; then
2954                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
2955         else
2956                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
2957                         AC_TRY_COMPILE([
2958                                 #include <time.h>
2959                         ], [
2960                                 timezone = 1;
2961                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
2962                 if test $ac_cv_var_timezone = yes; then
2963                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
2964                 else
2965                         AC_ERROR(unable to find a way to determine timezone)
2966                 fi
2967         fi
2969         dnl *********************************
2970         dnl *** Checks for math functions ***
2971         dnl *********************************
2972         AC_SEARCH_LIBS(sqrtf, m)
2974         dnl ****************************************************************
2975         dnl *** Checks for working poll() (macosx defines it but doesn't ***
2976         dnl *** have it in the library (duh))                            ***
2977         dnl ****************************************************************
2978         AC_CHECK_FUNCS(poll)
2980         dnl **********************************
2981         dnl *** epoll                      ***
2982         dnl **********************************
2983         AC_CHECK_HEADERS(sys/epoll.h)
2984         haveepoll=no
2985         AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
2986         if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
2987                 AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
2988         fi
2990         havekqueue=no
2992         AC_CHECK_HEADERS(sys/event.h)
2993         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
2995         dnl **************************************
2996         dnl * Darwin has a race that prevents us from using reliably:
2997         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
2998         dnl * Since kqueue is mostly used for scaling large web servers, 
2999         dnl * and very few folks run Mono on large web servers on OSX, falling
3000         dnl * back 
3001         dnl **************************************
3002         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
3003                 if test "x$host_darwin" = "xno"; then
3004                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
3005                 fi
3006         fi
3008         dnl ******************************
3009         dnl *** Checks for SIOCGIFCONF ***
3010         dnl ******************************
3011         AC_CHECK_HEADERS(sys/ioctl.h)
3012         AC_CHECK_HEADERS(net/if.h, [], [],
3013            [
3014            #ifdef HAVE_SYS_TYPES_H
3015            # include <sys/types.h>
3016            #endif
3017            #ifdef HAVE_SYS_SOCKET_H
3018            # include <sys/socket.h>
3019            #endif
3020            ])
3021         AC_MSG_CHECKING(for ifreq)
3022         AC_TRY_COMPILE([
3023                 #include <stdio.h>
3024                 #include <sys/ioctl.h>
3025                 #include <net/if.h>
3026                 ], [
3027                 struct ifconf ifc;
3028                 struct ifreq *ifr;
3029                 void *x;
3030                 ifc.ifc_len = 0;
3031                 ifc.ifc_buf = NULL;
3032                 x = (void *) &ifr->ifr_addr;
3033                 ],[
3034                         AC_MSG_RESULT(yes)
3035                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
3036                 ], [
3037                         AC_MSG_RESULT(no)
3038                 ])
3039         dnl **********************************
3040         dnl ***     Checks for sin_len     ***
3041         dnl **********************************
3042         AC_MSG_CHECKING(for sockaddr_in.sin_len)
3043         AC_TRY_COMPILE([
3044                 #include <netinet/in.h>
3045                 ], [
3046                 struct sockaddr_in saddr;
3047                 saddr.sin_len = sizeof (saddr);
3048                 ],[
3049                         AC_MSG_RESULT(yes)
3050                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
3051                 ], [
3052                         AC_MSG_RESULT(no)
3053                 ])      
3054         dnl **********************************
3055         dnl ***    Checks for sin6_len     ***
3056         dnl **********************************
3057         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
3058         AC_TRY_COMPILE([
3059                 #include <netinet/in.h>
3060                 ], [
3061                 struct sockaddr_in6 saddr6;
3062                 saddr6.sin6_len = sizeof (saddr6);
3063                 ],[
3064                         AC_MSG_RESULT(yes)
3065                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
3066                 ], [
3067                         AC_MSG_RESULT(no)
3068                 ])
3069         dnl **********************************
3070         dnl *** Check for getifaddrs       ***
3071         dnl **********************************
3072         AC_MSG_CHECKING(for getifaddrs)
3073                 AC_TRY_LINK([
3074                 #include <stdio.h>
3075                 #include <sys/types.h>
3076                 #include <sys/socket.h>
3077                 #ifdef HAVE_NET_IF_H
3078                 #include <net/if.h>
3079                 #endif
3080                 #include <ifaddrs.h>
3081         ], [
3082                 getifaddrs(NULL);
3083         ], [
3084                 # Yes, we have it...
3085                 AC_MSG_RESULT(yes)
3086                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
3087         ], [
3088                 AC_MSG_RESULT(no)
3089         ])
3090         dnl **********************************
3091         dnl *** Check for if_nametoindex   ***
3092         dnl **********************************
3093         AC_MSG_CHECKING(for if_nametoindex)
3094                 AC_TRY_LINK([
3095                 #include <stdio.h>
3096                 #include <sys/types.h>
3097                 #include <sys/socket.h>
3098                 #include <net/if.h>
3099         ], [
3100                 if_nametoindex(NULL);
3101         ], [
3102                 # Yes, we have it...
3103                 AC_MSG_RESULT(yes)
3104                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
3105         ], [
3106                 AC_MSG_RESULT(no)
3107         ])
3108         dnl **********************************
3109         dnl *** Check for access ***
3110         dnl **********************************
3111         AC_MSG_CHECKING(for access)
3112                 AC_TRY_LINK([
3113                 #include <unistd.h>
3114         ], [
3115                 access(NULL,0);
3116         ], [
3117                 # Yes, we have it...
3118                 AC_MSG_RESULT(yes)
3119                 AC_DEFINE(HAVE_ACCESS, 1, [Have access])
3120         ], [
3121                 AC_MSG_RESULT(no)
3122         ])
3123                         
3124         dnl **********************************
3125         dnl *** Checks for proclib         ***
3126         dnl **********************************
3127         AC_CHECK_HEADER(sys/errno.h, [AC_DEFINE(HAVE_SYS_ERRNO_H, 1, Define to 1 if you have the <sys/errno.h> header file.)])
3128         dnl **********************************
3129         dnl *** Checks for MonoPosixHelper ***
3130         dnl **********************************
3131         AC_CHECK_HEADERS(checklist.h)
3132         AC_CHECK_HEADERS(pathconf.h)
3133         AC_CHECK_HEADERS(fstab.h)
3134         AC_CHECK_HEADERS(attr/xattr.h)
3135         AC_CHECK_HEADERS(sys/extattr.h)
3136         AC_CHECK_HEADERS(sys/sendfile.h)
3137         AC_CHECK_HEADERS(sys/statvfs.h)
3138         AC_CHECK_HEADERS(sys/statfs.h)
3139         AC_CHECK_HEADERS(sys/vfstab.h)
3140         AC_CHECK_HEADERS(sys/xattr.h)
3141         AC_CHECK_HEADERS(sys/mman.h)
3142         AC_CHECK_HEADERS(sys/param.h)
3143         AC_CHECK_HEADERS(sys/mount.h, [], [],
3144                 [
3145                 #ifdef HAVE_SYS_PARAM_H
3146                 # include <sys/param.h>
3147                 #endif
3148                 ])
3149         AC_CHECK_HEADERS(sys/mount.h)
3150         AC_CHECK_FUNCS(confstr)
3151         AC_CHECK_FUNCS(seekdir telldir)
3152         AC_CHECK_FUNCS(getdomainname)
3153         AC_CHECK_FUNCS(setdomainname)
3154         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
3155         AC_CHECK_FUNCS(setgroups)
3156         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
3157         AC_CHECK_FUNCS(getfsstat)
3158         AC_CHECK_FUNCS(lutimes futimes)
3159         AC_CHECK_FUNCS(mremap)
3160         AC_CHECK_FUNCS(remap_file_pages)
3161         AC_CHECK_FUNCS(posix_fadvise)
3162         AC_CHECK_FUNCS(posix_fallocate)
3163         AC_CHECK_FUNCS(posix_madvise)
3164         AC_CHECK_FUNCS(vsnprintf)
3165         AC_CHECK_FUNCS(sendfile)
3166         AC_CHECK_FUNCS(gethostid sethostid)
3167         AC_CHECK_FUNCS(sethostname)
3168         AC_CHECK_FUNCS(statfs)
3169         AC_CHECK_FUNCS(fstatfs)
3170         AC_CHECK_FUNCS(statvfs)
3171         AC_CHECK_FUNCS(fstatvfs)
3172         AC_CHECK_FUNCS(stime)
3173         AC_CHECK_FUNCS(ttyname_r)
3174         AC_CHECK_FUNCS(psignal)
3175         AC_CHECK_FUNCS(getlogin_r)
3176         AC_CHECK_FUNCS(lockf)
3177         AC_CHECK_FUNCS(swab)
3178         AC_CHECK_FUNCS(setusershell endusershell)
3179         AC_CHECK_FUNCS(futimens utimensat)
3180         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
3181         AC_CHECK_FUNCS(readv writev preadv pwritev)
3182         AC_CHECK_FUNCS(setpgid)
3183         AC_CHECK_FUNCS(system)
3184         AC_CHECK_FUNCS(fork execv execve)
3185         AC_CHECK_FUNCS(waitpid)
3186         AC_CHECK_FUNCS(accept4)
3187         AC_CHECK_FUNCS(localtime_r)
3188         AC_CHECK_FUNCS(mkdtemp)
3189         AC_CHECK_SIZEOF(size_t)
3190         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], , 
3191                 [#include <sys/types.h>
3192                  #include <sys/stat.h>
3193                  #include <unistd.h>])
3194         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
3195                 [#include <sys/types.h>
3196                  #include <sys/stat.h>
3197                  #include <unistd.h>])
3198         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
3199                 [#include <sys/time.h>])
3200         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
3201                 [#include <sys/socket.h>])
3202         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
3203                 [#include <unistd.h>
3204                  #include <fcntl.h>])
3205         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
3206                 [#include <sys/uio.h>])
3207         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
3208                 [#include <sys/socket.h>])
3209         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
3210                 [#include <sys/poll.h>])
3211         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
3212                 [#include <sys/socket.h>])
3213         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
3214                 [#include <sys/socket.h>])
3215         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
3216                 [#include <netinet/in.h>])
3217         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
3218                 [#include <netinet/in.h>])
3219         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
3220                 [#include <sys/un.h>])
3221         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
3222                 [#include <sys/types.h>
3223                  #include <sys/stat.h>
3224                  #include <unistd.h>])
3225         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
3226                 [#include <time.h>])
3227         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
3228                 [#include <sys/time.h>
3229                  #include <sys/types.h>
3230                  #include <utime.h>])
3231         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
3232                 [#include <sys/time.h>])
3233         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
3234                 [#include <sys/types.h>
3235                  #include <utime.h>])
3236         AC_CHECK_MEMBERS(
3237                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,, 
3238                 [#include <sys/types.h>
3239                  #include <dirent.h>])
3240         AC_CHECK_MEMBERS(
3241                 [struct passwd.pw_gecos],,, 
3242                 [#include <sys/types.h>
3243                  #include <pwd.h>])
3244         AC_CHECK_MEMBERS(
3245                 [struct statfs.f_flags],,, 
3246                 [#include <sys/types.h>
3247                  #include <sys/vfs.h>])
3248         AC_CHECK_MEMBERS(
3249                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_atimespec, struct stat.st_ctim],,, 
3250                 [#include <sys/types.h>
3251                  #include <sys/stat.h>
3252                  #include <unistd.h>])
3254         dnl Favour xattr through glibc, but use libattr if we have to
3255         AC_CHECK_FUNC(lsetxattr, ,
3256                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
3257         )
3258         AC_SUBST(XATTR_LIB)
3260         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
3261         AC_CHECK_MEMBERS(
3262                 [struct kinfo_proc.kp_proc],,, 
3263                 [#include <sys/types.h>
3264                  #include <sys/param.h>
3265                  #include <sys/sysctl.h>
3266                  #include <sys/proc.h>
3267                  ])
3269         dnl *********************************
3270         dnl *** Checks for Windows compilation ***
3271         dnl *********************************
3272         AC_CHECK_HEADERS(sys/time.h)
3273         AC_CHECK_HEADERS(sys/param.h)
3274         AC_CHECK_HEADERS(dirent.h)
3276         dnl ******************************************
3277         dnl *** Checks for OSX and iOS compilation ***
3278         dnl ******************************************
3279         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
3281         dnl *********************************
3282         dnl *** Check for Console 2.0 I/O ***
3283         dnl *********************************
3284         AC_CHECK_HEADERS([curses.h])
3285         AC_CHECK_HEADERS([term.h], [], [],
3286         [#if HAVE_CURSES_H
3287          #include <curses.h>
3288          #endif
3289         ])
3290         AC_CHECK_HEADERS([termios.h])
3292         dnl *********************************
3293         dnl *** Checks for random         ***
3294         dnl *********************************
3295         if test x$host_darwin = xno; then
3296                 AC_CHECK_HEADERS(sys/random.h)
3297                 AC_CHECK_FUNCS(getrandom getentropy)
3298         fi
3300         dnl *********************************
3301         dnl *** Checks for Mono.Native    ***
3302         dnl *********************************
3304         # Translated from CMake in external/corefx/src/Native/Unix/configure.cmake, keep in sync!
3305         # Note: check_c_source_compiles in CMake is AC_TRY_LINK in autoconf
3307         AC_MSG_CHECKING(for linux/in.h)
3308         AC_TRY_COMPILE([
3309                 #include <sys/socket.h>
3310                 #include <linux/in.h>
3311         ], [
3312         ],[
3313                 AC_MSG_RESULT(yes)
3314                 AC_DEFINE(HAVE_LINUX_IN_H, 1, [linux/in.h])
3315         ], [
3316                 AC_MSG_RESULT(no)
3317         ])
3319         AC_CHECK_HEADERS([linux/if_packet.h])
3321         AC_MSG_CHECKING(for struct in_pktinfo)
3322         AC_TRY_COMPILE([
3323                 #ifdef HAVE_LINUX_IN_H
3324                 #include <sys/socket.h>
3325                 #include <linux/in.h>
3326                 #else
3327                 #include <netinet/in.h>
3328                 #endif
3329         ], [
3330                 struct in_pktinfo pktinfo;
3331         ],[
3332                 AC_MSG_RESULT(yes)
3333                 AC_DEFINE(HAVE_IN_PKTINFO, 1, [struct in_pktinfo])
3334         ], [
3335                 AC_MSG_RESULT(no)
3336         ])
3338         AC_MSG_CHECKING(for struct ip_mreqn)
3339         AC_TRY_COMPILE([
3340                 #if HAVE_LINUX_IN_H
3341                 #include <sys/socket.h>
3342                 #include <linux/in.h>
3343                 #else
3344                 #include <netinet/in.h>
3345                 #endif
3346         ], [
3347                 struct ip_mreqn mreqn;
3348         ],[
3349                 AC_MSG_RESULT(yes)
3350                 AC_DEFINE(HAVE_IP_MREQN, 1, struct ip_mreqn)
3351         ], [
3352                 AC_MSG_RESULT(no)
3353         ])
3355         if test x$host_darwin = xno; then
3356                 AC_CHECK_TYPES([struct flock64], [AC_DEFINE(HAVE_FLOCK64, 1, struct flock64)], , [#include <fcntl.h>])
3357         fi
3359         AC_CHECK_DECL(O_CLOEXEC,         [AC_DEFINE(HAVE_O_CLOEXEC, 1, [O_CLOEXEC])], [], [[#include <fcntl.h>]])
3360         AC_CHECK_DECL(F_DUPFD_CLOEXEC,   [AC_DEFINE(HAVE_F_DUPFD_CLOEXEC, 1, [F_DUPFD_CLOEXEC])], [], [[#include <fcntl.h>]])
3362         # AC_CHECK_FUNC(getifaddrs,           [AC_DEFINE(HAVE_GETIFADDRS, 1, [getifaddrs])]) # already done above
3363         AC_CHECK_FUNC(Qp2getifaddrs,     [AC_DEFINE(HAVE_QP2GETIFADDRS, 1, [Qp2getifaddrs])])
3365         AC_CHECK_FUNC(lseek64,           [AC_DEFINE(HAVE_LSEEK64, 1, [lseek64])])
3366         AC_CHECK_FUNC(mmap64,            [AC_DEFINE(HAVE_MMAP64, 1, [mmap64])])
3367         AC_CHECK_FUNC(ftruncate64,       [AC_DEFINE(HAVE_FTRUNCATE64, 1, [ftruncate64])])
3368         AC_CHECK_FUNC(posix_fadvise64,   [AC_DEFINE(HAVE_POSIX_FADVISE64, 1, [posix_fadvise64])])
3370         if test "x$mono_native_platform_ios" = "xno"; then
3371                 # On iOS, `stat64()` is deprecated and there is no `struct stat64` and `stat()`
3372                 # is either 32-bit or 64-bit based on the device / simulator that you're running on.
3373                 AC_CHECK_FUNC(stat64,            [AC_DEFINE(HAVE_STAT64, 1, [stat64])])
3374         fi
3376         AC_CHECK_DECL(pipe2,             [AC_DEFINE(HAVE_PIPE2, 1, [pipe2])])
3377         AC_CHECK_FUNC(getmntinfo,        [AC_DEFINE(HAVE_GETMNTINFO, 1, [getmntinfo])], [], [[#include <unistd.h>]])
3378         AC_CHECK_FUNC(strcpy_s,          [AC_DEFINE(HAVE_STRCPY_S, 1, [strcpy_s])])
3379         AC_CHECK_FUNC(strlcpy,           [AC_DEFINE(HAVE_STRLCPY, 1, [strlcpy])])
3380         AC_CHECK_FUNC(posix_fadvise,     [AC_DEFINE(HAVE_POSIX_ADVISE, 1, [posix_fadvise])]) # the define is called HAVE_POSIX_ADVISE in corefx, not a typo
3381         AC_CHECK_FUNC(ioctl,             [AC_DEFINE(HAVE_IOCTL, 1, [ioctl])])
3382         AC_CHECK_FUNC(sched_getaffinity, [AC_DEFINE(HAVE_SCHED_GETAFFINITY, 1, [sched_getaffinity])])
3383         AC_CHECK_FUNC(sched_setaffinity, [AC_DEFINE(HAVE_SCHED_SETAFFINITY, 1, [sched_setaffinity])])
3385         if test "x$platform_android" != "xyes"; then
3386                 AC_CHECK_FUNC(arc4random_buf,    [AC_DEFINE(HAVE_ARC4RANDOM_BUF, 1, [arc4random_buf])])
3387         fi
3389         AC_CHECK_DECL(TIOCGWINSZ,        [AC_DEFINE(HAVE_TIOCGWINSZ, 1, [TIOCGWINSZ])], [], [[#include <sys/ioctl.h>]])
3390         AC_CHECK_FUNC(tcgetattr,         [AC_DEFINE(HAVE_TCGETATTR, 1, [tcgetattr])])
3391         AC_CHECK_FUNC(tcsetattr,         [AC_DEFINE(HAVE_TCSETATTR, 1, [tcsetattr])])
3392         AC_CHECK_DECL(ECHO,              [AC_DEFINE(HAVE_ECHO, 1, [ECHO])], [], [[#include <termios.h>]])
3393         AC_CHECK_DECL(ICANON,            [AC_DEFINE(HAVE_ICANON, 1, [ICANON])], [], [[#include <termios.h>]])
3394         AC_CHECK_DECL(TCSANOW,           [AC_DEFINE(HAVE_TCSANOW, 1, [TCSANOW])], [], [[#include <termios.h>]])
3396         AC_CHECK_MEMBER(struct stat.st_birthtimespec, [AC_DEFINE(HAVE_STAT_BIRTHTIME, 1, [struct stat.st_birthtime])], [], [[#include <sys/types.h>], [#include <sys/stat.h>]])
3397         AC_CHECK_MEMBER(struct stat.st_atimespec,     [AC_DEFINE(HAVE_STAT_TIMESPEC, 1, [struct stat.st_atimespec])], [], [[#include <sys/types.h>], [#include <sys/stat.h>]])
3398         AC_CHECK_MEMBER(struct stat.st_atim,          [AC_DEFINE(HAVE_STAT_TIM, 1, [struct stat.st_atim])], [], [[#include <sys/types.h>], [#include <sys/stat.h>]])
3399         AC_CHECK_MEMBER(struct stat.st_atimensec,     [AC_DEFINE(HAVE_STAT_NSEC, 1, [struct stat.st_atimensec])], [], [[#include <sys/types.h>], [#include <sys/stat.h>]])
3400         AC_CHECK_MEMBER(struct dirent.d_namlen,       [AC_DEFINE(HAVE_DIRENT_NAME_LEN, 1, [struct dirent.d_namlen])], [], [[#include <dirent.h>]])
3401         AC_CHECK_MEMBER(struct statfs.f_fstypename,   [AC_DEFINE(HAVE_STATFS_FSTYPENAME, 1, [struct statfs.f_fstypename])], [], [[#include <sys/mount.h>]])
3402         AC_CHECK_MEMBER(struct statvfs.f_fstypename,  [AC_DEFINE(HAVE_STATVFS_FSTYPENAME, 1, [struct statvfs.f_fstypename])], [], [[#include <sys/mount.h>]])
3404         AC_MSG_CHECKING(for struct statfs)
3405         AC_TRY_COMPILE([
3406                 #if defined(HAVE_STATFS_FSTYPENAME) || defined(HAVE_STATVFS_FSTYPENAME)
3407                 #include <sys/mount.h>
3408                 #else
3409                 #include <sys/statfs.h>
3410                 #endif
3411         ], [
3412                 struct statfs;
3413         ],[
3414                 AC_MSG_RESULT(yes)
3415                 AC_DEFINE(HAVE_STATFS, 1, [struct statfs])
3416         ], [
3417                 AC_MSG_RESULT(no)
3418         ])
3420         if test "x$ac_cv_func_strerror_r_char_p" = "xyes" ; then
3421                 AC_DEFINE(HAVE_GNU_STRERROR_R, 1, [char* strerror(int errnum, char *buf, size_t buflen)])
3422         fi
3424         AC_MSG_CHECKING(for readdir_r)
3425         AC_TRY_LINK([
3426                 #include <dirent.h>
3427         ], [
3428                 DIR* dir;
3429                 struct dirent* entry;
3430                 struct dirent* result;
3431                 readdir_r(dir, entry, &result);
3432         ],[
3433                 AC_MSG_RESULT(yes)
3434                 AC_DEFINE(HAVE_READDIR_R, 1, [readdir_r])
3435         ], [
3436                 AC_MSG_RESULT(no)
3437         ])
3439         AC_MSG_CHECKING(for kevent with void *data)
3440         AC_TRY_LINK([
3441                 #include <sys/types.h>
3442                 #include <sys/event.h>
3443         ], [
3444                 struct kevent event;
3445                 void* data;
3446                 EV_SET(&event, 0, EVFILT_READ, 0, 0, 0, data);
3447         ],[
3448                 AC_MSG_RESULT(yes)
3449                 AC_DEFINE(KEVENT_HAS_VOID_UDATA, 1, [kevent with void *data])
3450         ], [
3451                 AC_MSG_RESULT(no)
3452         ])
3454         AC_CHECK_MEMBER(struct fd_set.fds_bits,   [AC_DEFINE(HAVE_FDS_BITS, 1, [struct fd_set.fds_bits])], [], [[#include <sys/select.h>]])
3455         AC_CHECK_MEMBER(struct fd_set.__fds_bits, [AC_DEFINE(HAVE_PRIVATE_FDS_BITS, 1, [struct fd_set.__fds_bits])], [], [[#include <sys/select.h>]])
3457         AC_MSG_CHECKING(for sendfile with 4 arguments)
3458         AC_TRY_LINK([
3459                 #include <sys/sendfile.h>
3460         ], [
3461                 #if defined(TARGET_ANDROID)
3462                 #if !defined(__ANDROID_API__)
3463                 #error No definition for __ANDROID_API__ even though we're targeting TARGET_ANDROID
3464                 #elif __ANDROID_API__ < 21
3465                 #error sendfile is not supported on this Android API level
3466                 #endif
3467                 #endif
3469                 int result = sendfile(0, 0, 0, 0);
3470         ],[
3471                 AC_MSG_RESULT(yes)
3472                 AC_DEFINE(HAVE_SENDFILE_4, 1, [sendfile with 4 arguments])
3473         ], [
3474                 AC_MSG_RESULT(no)
3475         ])
3477         ORIG_CFLAGS="$CFLAGS"
3478         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3480         AC_MSG_CHECKING(for sendfile with 6 arguments)
3481         AC_TRY_LINK([
3482                 #include <stdlib.h>
3483                 #include <sys/types.h>
3484                 #include <sys/socket.h>
3485                 #include <sys/uio.h>
3486         ], [
3487                 int result = sendfile(0, 0, 0, NULL, NULL, 0);
3488         ],[
3489                 AC_MSG_RESULT(yes)
3490                 AC_DEFINE(HAVE_SENDFILE_6, 1, [sendfile with 6 arguments])
3491         ], [
3492                 AC_MSG_RESULT(no)
3493         ])
3495         CFLAGS="$ORIG_CFLAGS"
3497         AC_CHECK_FUNC(fcopyfile,     [AC_DEFINE(HAVE_FCOPYFILE, 1, [fcopyfile])])
3498         AC_CHECK_FUNC(epoll_create1, [AC_DEFINE(HAVE_EPOLL, 1, [epoll_create1])])
3499         AC_CHECK_FUNC(accept4,       [AC_DEFINE(HAVE_ACCEPT4, 1, [accept4])])
3500         AC_CHECK_FUNC(kqueue,        [AC_DEFINE(HAVE_KQUEUE, 1, [kqueue])])
3502         ORIG_CFLAGS="$CFLAGS"
3503         CFLAGS="$CFLAGS -Werror=sign-conversion"
3505         AC_MSG_CHECKING(for getnameinfo with signed flags)
3506         AC_TRY_LINK([
3507                 #include <sys/types.h>
3508                 #include <netdb.h>
3509         ], [
3510                 const struct sockaddr *addr;
3511                 socklen_t addrlen;
3512                 char *host;
3513                 socklen_t hostlen;
3514                 char *serv;
3515                 socklen_t servlen;
3516                 int flags;
3517                 int result = getnameinfo(addr, addrlen, host, hostlen, serv, servlen, flags);
3518         ],[
3519                 AC_MSG_RESULT(yes)
3520                 AC_DEFINE(HAVE_GETNAMEINFO_SIGNED_FLAGS, 1, [getnameinfo with signed flags])
3521         ], [
3522                 AC_MSG_RESULT(no)
3523         ])
3525         CFLAGS="$ORIG_CFLAGS"
3527         if test "x$host_linux" = "xyes"; then
3528                 AC_DEFINE(HAVE_SUPPORT_FOR_DUAL_MODE_IPV4_PACKET_INFO, 1, [HAVE_SUPPORT_FOR_DUAL_MODE_IPV4_PACKET_INFO])
3529         else
3530                 AC_DEFINE(HAVE_SUPPORT_FOR_DUAL_MODE_IPV4_PACKET_INFO, 0, [HAVE_SUPPORT_FOR_DUAL_MODE_IPV4_PACKET_INFO])
3531         fi
3533         # HAVE_CLOCK_MONOTONIC check already done above
3534         # HAVE_CLOCK_REALTIME check already done above
3535         # HAVE_MACH_ABSOLUTE_TIME check already done above
3536         # HAVE_MACH_TIMEBASE_INFO check already done above
3537         # HAVE_FUTIMES check already done above
3538         # HAVE_FUTIMENS check already done above
3540         ORIG_CFLAGS="$CFLAGS"
3541         CFLAGS="$CFLAGS -Werror=sign-conversion"
3543         AC_MSG_CHECKING(for bind with unsigned addrlen)
3544         AC_TRY_LINK([
3545                 #include <sys/socket.h>
3546         ], [
3547                 int fd;
3548                 struct sockaddr* addr;
3549                 socklen_t addrLen;
3550                 bind(fd, addr, addrLen);
3551         ],[
3552                 AC_MSG_RESULT(yes)
3553                 AC_DEFINE(BIND_ADDRLEN_UNSIGNED, 1, [bind with unsigned addrlen])
3554         ], [
3555                 AC_MSG_RESULT(no)
3556         ])
3558         AC_MSG_CHECKING(for struct ipv6_mreq with unsigned ipv6mr_interface)
3559         AC_TRY_LINK([
3560                 #include <netinet/in.h>
3561                 #include <netinet/tcp.h>
3562         ], [
3563                 struct ipv6_mreq opt;
3564                 unsigned int index = 0;
3565                 opt.ipv6mr_interface = index;
3566         ],[
3567                 AC_MSG_RESULT(yes)
3568                 AC_DEFINE(IPV6MR_INTERFACE_UNSIGNED, 1, [struct ipv6_mreq with unsigned ipv6mr_interface])
3569         ], [
3570                 AC_MSG_RESULT(no)
3571         ])
3573         AC_MSG_CHECKING(for inotify_rm_watch with unsigned wd)
3574         AC_TRY_LINK([
3575                 #include <sys/inotify.h>
3576         ], [
3577                 intptr_t fd;
3578                 uint32_t wd;
3579                 int result = inotify_rm_watch(fd, wd);
3580         ],[
3581                 AC_MSG_RESULT(yes)
3582                 AC_DEFINE(INOTIFY_RM_WATCH_WD_UNSIGNED, 1, [inotify_rm_watch with unsigned wd])
3583         ], [
3584                 AC_MSG_RESULT(no)
3585         ])
3587         CFLAGS="$ORIG_CFLAGS"
3589         AC_MSG_CHECKING(for shm_open that works well enough with mmap)
3590         if test "x$ac_cv_func_shm_open" = "xno" -o "x$ac_cv_func_shm_open_working_with_mmap" = "xno" ; then
3591                 AC_MSG_RESULT(no)
3592         elif test "x$cross_compiling" = "xyes"; then
3593                 AC_MSG_RESULT(cross compiling, assuming yes)
3594                 AC_DEFINE(HAVE_SHM_OPEN_THAT_WORKS_WELL_ENOUGH_WITH_MMAP, 1, [shm_open that works well enough with mmap])
3595         else
3596                 AC_TRY_RUN([
3597                         #include <sys/mman.h>
3598                         #include <fcntl.h>
3599                         #include <unistd.h>
3601                         int main ()
3602                         {
3603                         #ifdef __PASE__
3604                                 /* IBM i doesn't implement this and returns SIGILL */
3605                                 return -1;
3606                         #endif
3607                                 int fd = shm_open("/mono_configure_shm_open", O_CREAT | O_RDWR, 0777);
3608                                 if (fd == -1)
3609                                         return -1;
3611                                 shm_unlink("/mono_configure_shm_open");
3613                                 // NOTE: PROT_EXEC and MAP_PRIVATE don't work well with shm_open
3614                                 //       on at least the current version of Mac OS X
3616                                 if (mmap(NULL, 1, PROT_EXEC, MAP_PRIVATE, fd, 0) == MAP_FAILED)
3617                                         return -1;
3619                                 return 0;
3620                         }
3621                 ],[
3622                         AC_MSG_RESULT(yes)
3623                         AC_DEFINE(HAVE_SHM_OPEN_THAT_WORKS_WELL_ENOUGH_WITH_MMAP, 1, [shm_open that works well enough with mmap])
3624                 ], [
3625                         AC_MSG_RESULT(no)
3626                 ])
3627         fi
3629         AC_MSG_CHECKING(for getpriority with int who)
3630         AC_TRY_LINK([
3631                 #include <sys/resource.h>
3632         ], [
3633                 int which;
3634                 int who;
3635                 int result = getpriority(which, who);
3636         ],[
3637                 AC_MSG_RESULT(yes)
3638                 AC_DEFINE(PRIORITY_REQUIRES_INT_WHO, 1, [getpriority with int who])
3639         ], [
3640                 AC_MSG_RESULT(no)
3641         ])
3643         AC_MSG_CHECKING(for kevent with int parameters)
3644         AC_TRY_LINK([
3645                 #include <sys/types.h>
3646                 #include <sys/event.h>
3647         ], [
3648                 int kg;
3649                 const struct kevent* chagelist;
3650                 int nchanges;
3651                 struct kevent* eventlist;
3652                 int nevents;
3653                 const struct timespec* timeout;
3654                 int result = kevent(kg, chagelist, nchanges, eventlist, nevents, timeout);
3655         ],[
3656                 AC_MSG_RESULT(yes)
3657                 AC_DEFINE(KEVENT_REQUIRES_INT_PARAMS, 1, [kevent with int parameters])
3658         ], [
3659                 AC_MSG_RESULT(no)
3660         ])
3662         AC_CHECK_FUNCS(mkstemps)
3663         # AC_CHECK_FUNCS(mkstemp) # already done above
3665         if test "x$ac_cv_func_mkstemps" != "xyes" -a "x$ac_cv_func_mkstemp" != "xyes"; then
3666                 AC_MSG_ERROR([Cannot find mkstemps or mkstemp on this platform])
3667         fi
3669         AC_MSG_CHECKING(for tcp/var.h)
3670         AC_TRY_LINK([
3671                 #include <sys/types.h>
3672                 #include <sys/socketvar.h>
3673                 #include <netinet/ip.h>
3674                 #include <netinet/tcp.h>
3675                 #include <netinet/tcp_var.h>
3676         ], [
3677         ],[
3678                 AC_MSG_RESULT(yes)
3679                 AC_DEFINE(HAVE_TCP_VAR_H, 1, [tcp/var.h])
3680         ], [
3681                 AC_MSG_RESULT(no)
3682         ])
3684         AC_CHECK_HEADERS([sys/cdefs.h])
3686         AC_MSG_CHECKING(for TCPSTATE enum in netinet/tcp.h)
3687         AC_TRY_LINK([
3688                 #ifdef HAVE_SYS_CDEFS_H
3689                 #include <sys/cdefs.h>
3690                 #endif
3691                 #include <netinet/tcp.h>
3692         ], [
3693                 int result = TCP_ESTABLISHED;
3694         ],[
3695                 AC_MSG_RESULT(yes)
3696                 AC_DEFINE(HAVE_TCP_H_TCPSTATE_ENUM, 1, [TCPSTATE enum in netinet/tcp.h])
3697         ], [
3698                 AC_MSG_RESULT(no)
3699         ])
3701         AC_CHECK_DECL(TCPS_ESTABLISHED, [AC_DEFINE(HAVE_TCP_FSM_H, 1, [HAVE_TCP_FSM_H])], [], [[#include <netinet/tcp_fsm.h>]])
3703         AC_MSG_CHECKING(for struct rt_msghdr)
3704         AC_TRY_COMPILE([
3705                 #include <sys/types.h>
3706                 #include <net/route.h>
3707         ], [
3708                 struct rt_msghdr;
3709         ],[
3710                 AC_MSG_RESULT(yes)
3711                 AC_DEFINE(HAVE_RT_MSGHDR, 1, [struct rt_msghdr])
3712         ], [
3713                 AC_MSG_RESULT(no)
3714         ])
3716         AC_CHECK_HEADERS([sys/sysctl.h])
3717         AC_CHECK_HEADERS([linux/rtnetlink.h])
3719         AC_CHECK_FUNC(getpeereid,    [AC_DEFINE(HAVE_GETPEEREID, 1, [getpeereid])])
3720         #AC_CHECK_FUNC(getdomainname, [AC_DEFINE(HAVE_GETDOMAINNAME, 1, [getdomainname])]) # already done above
3721         AC_CHECK_FUNC(uname,         [AC_DEFINE(HAVE_UNAME, 1, [uname])])
3723         ORIG_CFLAGS="$CFLAGS"
3724         CFLAGS="$CFLAGS -Werror=shorten-64-to-32"
3726         AC_MSG_CHECKING(for getdomainname with size_t namelen)
3727         AC_TRY_LINK([
3728                 #include <unistd.h>
3729         ], [
3730                 size_t namelen = 20;
3731                 char name[20];
3732                 int result = getdomainname(name, namelen);
3733         ],[
3734                 AC_MSG_RESULT(yes)
3735                 AC_DEFINE(HAVE_GETDOMAINNAME_SIZET, 1, [getdomainname with size_t namelen])
3736         ], [
3737                 AC_MSG_RESULT(no)
3738         ])
3740         CFLAGS="$ORIG_CFLAGS"
3742         AC_CHECK_FUNC(inotify_init, [AC_DEFINE(HAVE_INOTIFY_INIT, 1, [inotify_init])])
3743         AC_CHECK_FUNC(inotify_add_watch, [AC_DEFINE(HAVE_INOTIFY_ADD_WATCH, 1, [inotify_add_watch])])
3744         AC_CHECK_FUNC(inotify_rm_watch, [AC_DEFINE(HAVE_INOTIFY_RM_WATCH, 1, [inotify_rm_watch])])
3746         if test "x$ac_cv_func_inotify_init" = "xyes" -a "x$ac_cv_func_inotify_add_watch" = "xyes" -a "x$ac_cv_func_inotify_rm_watch" = "xyes"; then
3747                 AC_DEFINE(HAVE_INOTIFY, 1, [HAVE_INOTIFY])
3748         elif test "x$host_linux" = "xyes"; then
3749                 AC_MSG_ERROR([Cannot find inotify functions on a Linux platform.])
3750         fi
3752         # HAVE_CURLM_ADDED_ALREADY check skipped because we don't use libcurl in mono
3753         # HAVE_CURL_HTTP_VERSION_2TLS check skipped because we don't use libcurl in mono
3754         # HAVE_CURLPIPE_MULTIPLEX check skipped because we don't use libcurl in mono
3755         # HAVE_CURL_SSLVERSION_TLSv1_012 check skipped because we don't use libcurl in mono
3757         enable_gss=no;
3758         AC_MSG_CHECKING(for GSS/GSS.h)
3759         AC_TRY_COMPILE([
3760                         #include <GSS/GSS.h>
3761         ], [
3762         ],[
3763                         AC_MSG_RESULT(yes)
3764                         AC_DEFINE(HAVE_GSSFW_HEADERS, 1, [GSS/GSS.h])
3765                         AC_DEFINE(HAVE_GSS_SPNEGO_MECHANISM, 1, [GSS_SPNEGO_MECHANISM])
3766                         enable_gss=yes
3767         ], [
3768                         AC_MSG_RESULT(no)
3769         ])
3771         AC_MSG_CHECKING(for gssapi/gssapi_ext.h)
3772         AC_TRY_COMPILE([
3773                         #include <gssapi/gssapi_ext.h>
3774         ], [
3775         ],[
3776                         AC_MSG_RESULT(yes)
3777                         enable_gss=yes
3778         ], [
3779                         AC_MSG_RESULT(no)
3780         ])
3782         AC_MSG_CHECKING(for GSS_SPNEGO_MECHANISM)
3783         AC_TRY_COMPILE([
3784                         #include <gssapi/gssapi_ext.h>
3785                         #include <gssapi/gssapi_krb5.h>
3786                         gss_OID_set_desc gss_mech_spnego_OID_set_desc = {.count = 1, .elements = GSS_SPNEGO_MECHANISM};
3787         ], [
3788         ],[
3789                         AC_MSG_RESULT(yes)
3790                         AC_DEFINE(HAVE_GSS_SPNEGO_MECHANISM, 1, [GSS_SPNEGO_MECHANISM])
3791         ], [
3792                         AC_MSG_RESULT(no)
3793         ])
3795         AM_CONDITIONAL(ENABLE_GSS, test x$enable_gss = xyes)
3797         AC_CHECK_HEADERS([crt_externs.h])
3799         AC_MSG_CHECKING(for _NSGetEnviron)
3800         AC_TRY_LINK([
3801                 #include <crt_externs.h>
3802         ], [
3803                 char **result = *(_NSGetEnviron());
3804         ],[
3805                 AC_MSG_RESULT(yes)
3806                 AC_DEFINE(HAVE_NSGETENVIRON, 1, [_NSGetEnviron])
3807         ], [
3808                 AC_MSG_RESULT(no)
3809         ])
3811         AC_CHECK_DECL(IN_EXCL_UNLINK, [AC_DEFINE(HAVE_IN_EXCL_UNLINK, 1, [IN_EXCL_UNLINK])], [], [[#include <sys/inotify.h>]])
3813         # *** End of Mono.Native checks ***
3814 else
3815         AM_CONDITIONAL(ENABLE_GSS, false)
3817         dnl *********************************
3818         dnl *** Checks for Windows compilation ***
3819         dnl *********************************
3820         AC_CHECK_HEADERS(winternl.h)
3822         jdk_headers_found=no
3823         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
3824         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
3825         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
3826         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
3827         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
3828         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
3829         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
3831         dnl *********************************
3832         dnl *** Check for struct ip_mreqn ***
3833         dnl *********************************
3834         AC_MSG_CHECKING(for struct ip_mreqn)
3835         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
3836                 struct ip_mreqn mreq;
3837                 mreq.imr_address.s_addr = 0;
3838         ], [
3839                 # Yes, we have it...
3840                 AC_MSG_RESULT(yes)
3841                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
3842         ], [
3843                 # We'll just have to try and use struct ip_mreq
3844                 AC_MSG_RESULT(no)
3845                 AC_MSG_CHECKING(for struct ip_mreq)
3846                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
3847                         struct ip_mreq mreq;
3848                         mreq.imr_interface.s_addr = 0;
3849                 ], [
3850                         # Yes, we have it...
3851                         AC_MSG_RESULT(yes)
3852                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
3853                 ], [
3854                         # No multicast support
3855                         AC_MSG_RESULT(no)
3856                 ])
3857         ])
3859         dnl **********************************
3860         dnl *** Check for getaddrinfo ***
3861         dnl **********************************
3862         AC_MSG_CHECKING(for getaddrinfo)
3863                 AC_TRY_LINK([
3864                 #include <stdio.h>
3865                 #include <winsock2.h>
3866                 #include <ws2tcpip.h>
3867         ], [
3868                 getaddrinfo(NULL,NULL,NULL,NULL);
3869         ], [
3870                 # Yes, we have it...
3871                 AC_MSG_RESULT(yes)
3872                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
3873         ], [
3874                 AC_MSG_RESULT(no)
3875         ])
3877         dnl **********************************
3878         dnl *** Check for gethostbyname ***
3879         dnl **********************************
3880         AC_MSG_CHECKING(for gethostbyname)
3881                 AC_TRY_LINK([
3882                 #include <stdio.h>
3883                 #include <winsock2.h>
3884                 #include <ws2tcpip.h>
3885         ], [
3886                 gethostbyname(NULL);
3887         ], [
3888                 # Yes, we have it...
3889                 AC_MSG_RESULT(yes)
3890                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
3891         ], [
3892                 AC_MSG_RESULT(no)
3893         ])
3895         dnl **********************************
3896         dnl *** Check for getprotobyname ***
3897         dnl **********************************
3898         AC_MSG_CHECKING(for getprotobyname)
3899                 AC_TRY_LINK([
3900                 #include <stdio.h>
3901                 #include <winsock2.h>
3902                 #include <ws2tcpip.h>
3903         ], [
3904                 getprotobyname(NULL);
3905         ], [
3906                 # Yes, we have it...
3907                 AC_MSG_RESULT(yes)
3908                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
3909         ], [
3910                 AC_MSG_RESULT(no)
3911         ])
3913         dnl **********************************
3914         dnl *** Check for getnameinfo ***
3915         dnl **********************************
3916         AC_MSG_CHECKING(for getnameinfo)
3917                 AC_TRY_LINK([
3918                 #include <stdio.h>
3919                 #include <winsock2.h>
3920                 #include <ws2tcpip.h>
3921         ], [
3922                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
3923         ], [
3924                 # Yes, we have it...
3925                 AC_MSG_RESULT(yes)
3926                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
3927         ], [
3928                 AC_MSG_RESULT(no)
3929         ])
3931         dnl **********************************
3932         dnl *** Check for inet_ntop ***
3933         dnl **********************************
3934         AC_MSG_CHECKING(for inet_ntop)
3935                 AC_TRY_LINK([
3936                 #include <stdio.h>
3937                 #include <winsock2.h>
3938                 #include <ws2tcpip.h>
3939         ], [
3940                 inet_ntop (0, NULL, NULL, 0);
3941         ], [
3942                 # Yes, we have it...
3943                 AC_MSG_RESULT(yes)
3944                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
3945         ], [
3946                 AC_MSG_RESULT(no)
3947         ])
3949         dnl **********************************
3950         dnl *** Check for inet_pton ***
3951         dnl **********************************
3952         AC_MSG_CHECKING(for inet_pton)
3953                 AC_TRY_LINK([
3954                 #include <stdio.h>
3955                 #include <winsock2.h>
3956                 #include <ws2tcpip.h>
3957         ], [
3958                 #ifndef inet_pton
3959                 (void) inet_pton;
3960                 #endif
3961                 inet_pton (0, NULL, NULL);
3962         ], [
3963                 # Yes, we have it...
3964                 AC_MSG_RESULT(yes)
3965                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
3966         ], [
3967                 AC_MSG_RESULT(no)
3968         ])
3971 dnl socklen_t check
3972 AC_MSG_CHECKING(for socklen_t)
3973 AC_TRY_COMPILE([
3974 #include <sys/types.h>
3975 #include <sys/socket.h>
3977   socklen_t foo;
3979 ac_cv_c_socklen_t=yes
3980         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
3981         AC_MSG_RESULT(yes)
3983         AC_MSG_RESULT(no)
3986 AC_CHECK_FUNCS(execvp)
3988 dnl ****************************
3989 dnl *** Look for /dev/random ***
3990 dnl ****************************
3992 AC_MSG_CHECKING([if usage of random device is requested])
3993 AC_ARG_ENABLE(dev-random,
3994 [  --disable-dev-random    disable the use of the random device (enabled by default)],
3995 try_dev_random=$enableval, try_dev_random=yes)
3997 AC_MSG_RESULT($try_dev_random)
3999 case "{$build}" in
4001 dnl IBM i does not have /dev/random, use unblocking only
4003     *-*-os400*)
4004     NAME_DEV_RANDOM="/dev/urandom"
4005     ;;
4007 dnl Win32 does not have /dev/random, they have their own method...
4009     *-mingw*|*-*-cygwin*)
4010     ac_cv_have_dev_random=no
4011     ;;
4013 dnl Everywhere else, it's /dev/random
4015     *)
4016     NAME_DEV_RANDOM="/dev/random"
4017     ;;
4018 esac
4020 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
4022 dnl Now check if the device actually exists
4024 if test "x$try_dev_random" = "xyes"; then
4025     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
4026     [if test -r "$NAME_DEV_RANDOM" ; then
4027         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
4028     if test "x$ac_cv_have_dev_random" = "xyes"; then
4029         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
4030     fi
4031 else
4032     AC_MSG_CHECKING(for random device)
4033     ac_cv_have_dev_random=no
4034     AC_MSG_RESULT(has been disabled)
4037 if test "x$host_win32" = "xyes"; then
4038     AC_DEFINE(HAVE_CRYPT_RNG)
4041 if test "x$ac_cv_have_dev_random" = "xno" \
4042     && test "x$host_win32" = "xno"; then
4043     AC_MSG_WARN([[
4045 *** A system-provided entropy source was not found on this system.
4046 *** Because of this, the System.Security.Cryptography random number generator
4047 *** will throw a NotImplemented exception.
4049 *** If you are seeing this message, and you know your system DOES have an
4050 *** entropy collection in place, please report an issue on GitHub and
4051 *** provide information about the system and how to access the random device.
4053 *** Otherwise you can install either egd or prngd and set the environment
4054 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
4055 ***]])
4058 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
4060 AC_MSG_CHECKING([if big-arrays are to be enabled])
4061 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
4062 if test "x$enable_big_arrays" = "xyes" ; then
4063     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
4064         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
4065     else
4066         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
4067     fi
4069 AC_MSG_RESULT($enable_big_arrays)
4071 dnl **************
4072 dnl *** DTRACE ***
4073 dnl **************
4075 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
4077 if test "x$enable_dtrace" = "xyes"; then
4078    if test "x$has_dtrace" = "xno"; then
4079           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
4080    fi
4081    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
4082    if test "x$DTRACE" = "xno"; then
4083           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
4084           enable_dtrace=no
4085    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
4086           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
4087           enable_dtrace=no
4088    fi
4091 dtrace_g=no
4092 if test "x$enable_dtrace" = "xyes"; then
4093         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
4094         DTRACEFLAGS=
4095         if test "x$ac_cv_sizeof_void_p" = "x8"; then
4096                 case "$host" in
4097                         powerpc-*-darwin*)
4098                         DTRACEFLAGS="-arch ppc64"
4099                         ;;
4100                         i*86-*-darwin*)
4101                         DTRACEFLAGS="-arch x86_64"
4102                         ;;
4103                         *)
4104                         DTRACEFLAGS=-64
4105                         ;;
4106                 esac
4107         else
4108                 case "$host" in
4109                         powerpc-*-darwin*)
4110                         DTRACEFLAGS="-arch ppc"
4111                         ;;
4112                         i*86-*-darwin*)
4113                         DTRACEFLAGS="-arch i386"
4114                         ;;
4115                         *)
4116                         DTRACEFLAGS=-32
4117                         ;;
4118                 esac
4119         fi
4120         AC_SUBST(DTRACEFLAGS)
4121         case "$host" in
4122                 *-*-solaris*)
4123                 dtrace_g=yes
4124                 ;;
4125         esac
4126         AC_CHECK_HEADERS([sys/sdt.h])
4128 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
4129 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
4131 dnl **************************
4132 dnl *** AOT cross offsets  ***
4133 dnl **************************
4135 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
4136     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
4138 dnl **************
4139 dnl ***  LLVM  ***
4140 dnl **************
4142 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=default)
4143 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
4144 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
4145 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
4146 AC_ARG_ENABLE(llvm-asserts,[  --enable-llvm-asserts Enable llvm asserts (option to LLVM in CMake)], enable_llvm_asserts=$enableval, enable_llvm_asserts=no)
4148 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
4150 if test "x$enable_llvm" = "xdefault"; then
4151    enable_llvm=$enable_llvm_default
4154 enable_llvm_msvc_only="no"
4155 if test "x$enable_llvm" = "xyes"; then
4156         if test "x$host_win32" = "xyes"; then
4157                 if test "x$cross_compiling" = "xno"; then
4158                         case "$target" in
4159                         x86_64*)
4160                                 AC_MSG_WARN("LLVM for host=Windows and target=Windows is only supported on x64 MSVC builds. Disabling LLVM for GCC build.")
4161                                 enable_llvm_msvc_only="yes"
4162                                 ;;
4163                         i686*)
4164                                 AC_MSG_ERROR("LLVM for host=Windows and target=Windows is only supported for x64 builds.")
4165                                 ;;
4166                         esac
4167                 fi
4168                 if test "x$enable_loadedllvm" = "xyes"; then
4169                         AC_MSG_WARN("Loadable LLVM currently not supported on Windows. Disabling feature.")
4170                         enable_loadedllvm=no
4171                 fi
4172         fi
4175 internal_llvm="no"
4176 if test "x$enable_llvm" = "xyes"; then
4177         if test "x$with_llvm" != "x"; then
4178                 EXTERNAL_LLVM_CONFIG=$with_llvm/bin/llvm-config
4179                 if test x$host_win32 = xyes; then
4180                         EXTERNAL_LLVM_CONFIG=$EXTERNAL_LLVM_CONFIG.exe
4181                 fi
4182                 if test ! -x $EXTERNAL_LLVM_CONFIG; then
4183                         AC_MSG_ERROR([LLVM executable $EXTERNAL_LLVM_CONFIG not found.])
4184                 fi
4185         else
4186                 if test x$host_win32 = xyes; then
4187                         AC_PATH_PROG(EXTERNAL_LLVM_CONFIG, llvm-config.exe, no)
4188                 else
4189                         AC_PATH_PROG(EXTERNAL_LLVM_CONFIG, llvm-config, no)
4190                 fi
4191                 if test "x$EXTERNAL_LLVM_CONFIG" = "xno"; then
4192                         internal_llvm=yes
4193                 fi
4194         fi
4196         LLVM_CODEGEN_LIBS="x86codegen"
4197         case "$target" in
4198         arm*)
4199                 LLVM_CODEGEN_LIBS="armcodegen"
4200                 ;;
4201         aarch64*)
4202                 LLVM_CODEGEN_LIBS="aarch64codegen"
4203                 ;;
4204         powerpc*)
4205                 LLVM_CODEGEN_LIBS="powerpccodegen"
4206                 ;;
4207         esac
4208         if test "x$host" != "x$target"; then
4209                 # No need for jit libs
4210                 LLVM_CODEGEN_LIBS=
4211         fi
4213         AC_SUBST(LLVM_CODEGEN_LIBS)
4214         AC_SUBST(EXTERNAL_LLVM_CONFIG)
4216         if test "x$host_win32" = "xyes" && test "x$cross_compiling" = "xno" &&  test "x$internal_llvm" = "xno"; then
4217                 EXTERNAL_LLVM_CONFIG_WIN32=$(cygpath -m $EXTERNAL_LLVM_CONFIG)
4218                 AC_SUBST(EXTERNAL_LLVM_CONFIG_WIN32)
4219         fi
4220         if test "x$enable_llvm_msvc_only" != "xyes"; then
4221                 AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
4222         else
4223                 AC_DEFINE(ENABLE_LLVM_MSVC_ONLY, 1, [Enable the LLVM back end])
4224         fi
4225 fi # ENABLE_LLVM
4227 # AC_DEFINE necessary for correct restore behavior on Linux
4228 AM_CONDITIONAL(INTERNAL_LLVM, [test "x$internal_llvm" != "xno" && test "x$enable_llvm_msvc_only" != "xyes"])
4229 if test "x$internal_llvm" != "xno"; then
4230         if test "x$enable_llvm_msvc_only" != "xyes"; then
4231                 AC_DEFINE(INTERNAL_LLVM, 1, [LLVM used is being build during mono build])
4232         else
4233                 AC_DEFINE(INTERNAL_LLVM_MSVC_ONLY, 1, [LLVM used is being build during mono build])
4234         fi
4237 AM_CONDITIONAL(INTERNAL_LLVM_ASSERTS, [test "x$enable_llvm_asserts" != "xno" && test "x$enable_llvm_msvc_only" != "xyes"])
4238 if test "x$enable_llvm_asserts" != "xno"; then
4239         if test "x$enable_llvm_msvc_only" != "xyes"; then
4240                 AC_DEFINE(INTERNAL_LLVM_ASSERTS, 1, [Build LLVM with assertions])
4241         else
4242                 AC_DEFINE(INTERNAL_LLVM_ASSERTS_MSVC_ONLY, 1, [Build LLVM with assertions])
4243         fi
4246 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes && test x$enable_llvm_msvc_only != xyes])
4248 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes && test x$enable_llvm_msvc_only != xyes])
4249 if test "x$enable_loadedllvm" = "xyes"; then
4250         if test "x$enable_llvm_msvc_only" != "xyes"; then
4251                 AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
4252         fi
4255 if test "x$enable_llvm" = "xyes"; then
4256         enable_llvm_runtime=yes
4259 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes && test x$enable_llvm_msvc_only != xyes])
4260 if test "x$enable_llvm_runtime" = "xyes"; then
4261         if test "x$enable_llvm_msvc_only" != "xyes"; then
4262                 AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
4263         else
4264                 AC_DEFINE(ENABLE_LLVM_RUNTIME_MSVC_ONLY, 1, [Runtime support code for llvm enabled])
4265         fi
4268 TARGET="unknown"
4269 ACCESS_UNALIGNED="yes"
4271 LIBC="libc.so.6"
4272 INTL="libc.so.6"
4273 SQLITE="libsqlite.so.0"
4274 SQLITE3="libsqlite3.so.0"
4275 ODBC="libodbc.so.2"
4276 X11="libX11.so"
4277 GDKX11="libgdk-x11-2.0.so.0"
4278 GTKX11="libgtk-x11-2.0.so.0"
4279 XINERAMA="libXinerama.so.1"
4281 sizeof_register="SIZEOF_VOID_P"
4283 jit_wanted=true
4284 boehm_supported=true
4285 BTLS_SUPPORTED=no
4286 BTLS_PLATFORM=
4288 case "$host" in
4289         wasm32*)
4290                 TARGET=WASM
4291                 arch_target=wasm
4292                 BTLS_SUPPORTED=no
4293                 ACCESS_UNALIGNED="no"
4294                 with_tls=pthread
4295                 target_wasm=yes
4296                 ;;
4297         mips*)
4298                 TARGET=MIPS;
4299                 arch_target=mips;
4300                 with_tls=pthread;
4301                 ACCESS_UNALIGNED="no"
4303                 AC_MSG_CHECKING(for mips n32)
4304                 AC_TRY_COMPILE([],[
4305                 #if _MIPS_SIM != _ABIN32
4306                 #error Not mips n32
4307                 #endif
4308                 ],[
4309                 AC_MSG_RESULT(yes)
4310                 sizeof_register=8
4311                 ],[
4312                 AC_MSG_RESULT(no)
4313                 ])
4314                 ;;
4315         i*86-*-*)
4316                 TARGET=X86;
4317                 arch_target=x86;
4318                 case $host_os in
4319                   solaris*)
4320                         LIBC="libc.so"
4321                         INTL="libintl.so"
4322                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
4323                                 TARGET=AMD64
4324                                 arch_target=amd64
4325                         fi
4327                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
4328                         # int astruct __attribute__ ((visibility ("hidden")));
4329                         # void foo ()
4330                         # {
4331                         #       void *p = &astruct;
4332                         # }
4333                         # gcc -fPIC --shared -o libfoo.so foo.c
4334                         # yields:
4335                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
4336                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
4337                         have_visibility_hidden=no
4338                         ;;
4339                   mingw*|cygwin*)
4340                         have_visibility_hidden=no
4341                         BTLS_SUPPORTED=no
4342                         BTLS_PLATFORM=i386
4343                         ;;
4344                   haiku*)
4345                         LIBC=libroot.so
4346                         ;;
4347                   linux*)
4348                         AOT_SUPPORTED="yes"
4349                         BTLS_SUPPORTED=yes
4350                         BTLS_PLATFORM=i386
4351                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
4352                         ;;
4353                   darwin*)
4354                         AOT_SUPPORTED="yes"
4355                         BTLS_SUPPORTED=yes
4356                         BTLS_PLATFORM=i386
4357                         ;;
4358                   openbsd*|freebsd*|kfreebsd-gnu*)
4359                         AOT_SUPPORTED="yes"
4360                         BTLS_SUPPORTED=yes
4361                         BTLS_PLATFORM=i386
4362                         ;;
4363                 esac
4364                 ;;
4365         x86_64-*-* | amd64-*-*)
4366                 TARGET=AMD64;
4367                 arch_target=amd64;
4368                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
4369                         AC_DEFINE(MONO_ARCH_ILP32, 1, [64 bit mode with 4 byte longs and pointers])
4370                         sizeof_register=8
4371                 fi
4372                 case $host_os in
4373                   linux*)
4374                         AOT_SUPPORTED="yes"
4375                         BTLS_SUPPORTED=yes
4376                         BTLS_PLATFORM=x86_64
4377                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
4378                         ;;
4379                   darwin*)
4380                         AOT_SUPPORTED="yes"
4381                         BTLS_SUPPORTED=yes
4382                         BTLS_PLATFORM=x86_64
4383                         boehm_supported=false
4384                         ;;
4385                   openbsd*|freebsd*|kfreebsd-gnu*)
4386                         AOT_SUPPORTED="yes"
4387                         BTLS_SUPPORTED=yes
4388                         BTLS_PLATFORM=x86_64
4389                         ;;
4390                   mingw*|cygwin*)
4391                         BTLS_SUPPORTED=no
4392                         BTLS_PLATFORM=x86_64
4393                         ;;
4394                 esac
4395                 ;;
4396         sparc*-*-*)
4397                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
4398                    TARGET=SPARC64
4399                 else
4400                         TARGET=SPARC
4401                 fi
4402                 arch_target=sparc;
4403                 ACCESS_UNALIGNED="no"
4404                 case $host_os in
4405                   linux*) ;;
4406                   *)
4407                         LIBC="libc.so"
4408                         INTL="libintl.so"
4409                 esac
4410                 if test x"$GCC" = xyes; then
4411                         # We don't support v8 cpus
4412                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
4413                 fi
4414                 if test x"$AR" = xfalse; then
4415                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
4416                 fi
4417                 ;;
4418         *-mingw*|*-*-cygwin*)
4419                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
4420                 have_visibility_hidden=no
4421                 INTL="intl"
4422                 case "$host" in
4423                         x86_64*mingw*)
4424                                 # Old Boehm fails to compile for x86_64-mingw.
4425                                 # It is trivial to fix, but just silently drop it.
4426                                 boehm_supported=false
4427                                 ;;
4428                 esac
4429                 ;;
4430         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
4431         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | \
4432         powerpc-*-freebsd* | powerpc*-*-aix* | powerpc*-*-os400* )
4433                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
4434                         TARGET=POWERPC64;
4435                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
4436                         if ! (echo $CC | grep -q -- 'clang'); then
4437                                 CFLAGS="$CFLAGS -mminimal-toc"
4438                         fi
4439                 else
4440                         TARGET=POWERPC;
4441                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
4442                 fi
4443                 arch_target=ppc;
4444                 case $host_os in
4445                   aix*|os400*)
4446                         BTLS_SUPPORTED=yes
4447                         BTLS_PLATFORM=powerpc
4448                         ;;
4449                   linux*)
4450                         BTLS_SUPPORTED=yes
4451                         BTLS_PLATFORM=powerpc
4452                         ;;
4453                 esac
4454                 ;;
4455         armv7k-*-darwin*)
4456                 TARGET=ARM;
4457                 TARGET_SYS=WATCHOS
4458                 arch_target=arm;
4459                 arm_fpu=VFP_HARD
4460                 ACCESS_UNALIGNED="no"
4461                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4462                 ;;
4464         arm*-darwin*)
4465                 TARGET=ARM;
4466                 arch_target=arm;
4467                 ACCESS_UNALIGNED="no"
4468                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4469                 ;;
4470         arm*-linux*)
4471                 TARGET=ARM;
4472                 arch_target=arm;
4473                 ACCESS_UNALIGNED="no"
4474                 AOT_SUPPORTED="yes"
4475                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4476                 BTLS_SUPPORTED=yes
4477                 BTLS_PLATFORM=arm
4478                 AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
4479                 case "$target" in
4480                 arm*-linux*-gnueabi)
4481                         BTLS_PLATFORM=armsoft
4482                         ;;
4483                 esac
4484                 ;;
4485         arm*-netbsd*-eabi*)
4486                 TARGET=ARM;
4487                 arch_target=arm;
4488                 ACCESS_UNALIGNED="no"
4489                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4490                 ;;
4491         aarch64-*darwin*ilp32)
4492                 TARGET=ARM6432
4493                 arch_target=arm64
4494                 AC_DEFINE(MONO_ARCH_ILP32, 1, [64 bit mode with 4 byte longs and pointers])
4495                 sizeof_register=8
4496                 # assuming no other target other than watchOS is using aarch64*darwin triple
4497                 TARGET_SYS=WATCHOS
4498                 ;;
4499         aarch64-*)
4500                 # https://lkml.org/lkml/2012/7/15/133
4501                 TARGET=ARM64
4502                 arch_target=arm64
4503                 boehm_supported=false
4504                 AOT_SUPPORTED="yes"
4505                 BTLS_SUPPORTED=yes
4506                 BTLS_PLATFORM=aarch64
4507                 AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
4508                 ;;
4509         s390x-*-linux*)
4510                 TARGET=S390X;
4511                 arch_target=s390x;
4512                 ACCESS_UNALIGNED="yes"
4513                 BTLS_SUPPORTED=yes
4514                 BTLS_PLATFORM=s390x
4515                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
4516                 ;;
4517         riscv32-*)
4518                 TARGET=RISCV32
4519                 ACCESS_UNALIGNED=no
4520                 AOT_SUPPORTED=no
4521                 BTLS_SUPPORTED=yes
4522                 BTLS_PLATFORM=riscv32
4523                 arch_target=riscv32
4524                 boehm_supported=false
4525                 ;;
4526         riscv64*)
4527                 TARGET=RISCV64
4528                 ACCESS_UNALIGNED=no
4529                 AOT_SUPPORTED=no
4530                 BTLS_SUPPORTED=yes
4531                 BTLS_PLATFORM=riscv64
4532                 arch_target=riscv64
4533                 boehm_supported=false
4534                 ;;
4535 esac
4537 HOST=$TARGET
4539 if test "x$host" != "x$target"; then
4540    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
4541    enable_mcs_build=no
4542    enable_support_build=no
4543    BTLS_SUPPORTED=no
4544    # Can't use tls, since it depends on the runtime detection of tls offsets
4545    # in mono-compiler.h
4546    with_tls=pthread
4547    target_mach=no
4548    case "$target" in
4549    wasm32*)
4550                 TARGET=WASM
4551                 arch_target=wasm
4552                 AC_DEFINE(TARGET_WASM, 1, [Target wasm])
4553                 ;;
4554    arm*-darwin*)
4555                 TARGET=ARM;
4556                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4557                 case "$target" in
4558                 armv7k-*)
4559                         arm_fpu=VFP_HARD
4560                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
4561                         ;;
4562                 esac            
4563                 ;;
4564    powerpc64-ps3-linux-gnu)
4565                 TARGET=POWERPC64
4566                 arch_target=powerpc64
4567                 AC_DEFINE(TARGET_PS3, 1, [...])
4568                 # It would be better to just use TARGET_POWERPC64, but lots of code already
4569                 # uses this define
4570                 AC_DEFINE(__mono_ppc64__, 1, [...])
4571                 AC_DEFINE(MONO_ARCH_ILP32, 1, [64 bit mode with 4 byte longs and pointers])
4572                 sizeof_register=8
4573                 target_byte_order=G_BIG_ENDIAN
4574                 ;;
4575    powerpc64-xbox360-linux-gnu)
4576                 TARGET=POWERPC64
4577                 arch_target=powerpc64
4578                 AC_DEFINE(TARGET_XBOX360, 1, [...])
4579                 # It would be better to just use TARGET_POWERPC64, but lots of code already
4580                 # uses this define
4581                 sizeof_register=8
4582                 target_byte_order=G_BIG_ENDIAN
4583                 ;;
4584    arm*-linux-*)
4585                 TARGET=ARM;
4586                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4587                 ;;
4588    arm*-netbsd*-eabi*)
4589                 TARGET=ARM;
4590                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
4591                 ;;
4592    i686*-linux-*)
4593                 TARGET=X86;
4594                 ;;
4595    i*86-apple-*)
4596                 TARGET=X86;
4597                 ;;
4598    x86_64*-linux-*)
4599                 TARGET=AMD64;
4600                 ;;
4601    x86_64-ps4-freebsd)
4602                 TARGET=AMD64;
4603                 AC_DEFINE(TARGET_PS4, 1, [...])
4604                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
4605                 CPPFLAGS="$CPPFLAGS"
4606                 target_win32=no
4607                 ;;
4608         aarch64*darwin*_ilp32)
4609                 TARGET=ARM6432;
4610                 AC_DEFINE(MONO_ARCH_ILP32, 1, [64 bit mode with 4 byte longs and pointers])
4611                 AC_DEFINE(TARGET_WATCHOS, 1, [...])
4612                 ;;
4613         aarch64-*)
4614                 TARGET=ARM64
4615                 ;;
4616         riscv32*)
4617                 TARGET=RISCV32
4618                 AC_DEFINE([TARGET_RISCV], [1], [Target is RISC-V])
4619                 AC_DEFINE([TARGET_RISCV32], [1], [Target is 32-bit RISC-V])
4620                 arch_target=riscv32
4621                 target_mach=no
4622                 with_tls=pthread
4623                 ;;
4624         riscv64*)
4625                 TARGET=RISCV64
4626                 AC_DEFINE([TARGET_RISCV], [1], [Target is RISC-V])
4627                 AC_DEFINE([TARGET_RISCV64], [1], [Target is 64-bit RISC-V])
4628                 arch_target=riscv64
4629                 target_mach=no
4630                 with_tls=pthread
4631                 ;;
4632         x86_64-google-fuchsia)
4633                 TARGET=AMD64
4634                 target_win32=nop
4635                 AC_DEFINE(HOST_FUCHSIA,1,[Targeting the Fuchsia platform])
4636                 ;;
4637         *)
4638                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
4639         esac
4641         case "$target" in
4642         *-darwin*)
4643                 target_mach=yes
4644                 ;;
4645         *-linux-android*)
4646                 AC_DEFINE(TARGET_ANDROID, 1, [...])
4647                 ;;
4648         esac
4651 case "$TARGET" in
4652 WASM)
4653         AC_DEFINE(TARGET_WASM, 1, [...])
4654         arch_target=wasm
4655         ;;
4656 X86)
4657         AC_DEFINE(TARGET_X86, 1, [...])
4658         arch_target=x86
4659         ;;
4660 AMD64)
4661         AC_DEFINE(TARGET_AMD64, 1, [...])
4662         arch_target=amd64
4663         ;;
4664 ARM)
4665         AC_DEFINE(TARGET_ARM, 1, [...])
4666         arch_target=arm
4667         ACCESS_UNALIGNED="no"
4668         ;;
4669 ARM64|ARM6432)
4670         AC_DEFINE(TARGET_ARM64, 1, [...])
4671         arch_target=arm64
4672         ;;
4673 POWERPC)
4674         AC_DEFINE(TARGET_POWERPC, 1, [...])
4675         ;;
4676 POWERPC64)
4677         AC_DEFINE(TARGET_POWERPC, 1, [...])
4678         AC_DEFINE(TARGET_POWERPC64, 1, [...])
4679         ;;
4680 S390X)
4681         AC_DEFINE(TARGET_S390X, 1, [...])
4682         ;;
4683 MIPS)
4684         AC_DEFINE(TARGET_MIPS, 1, [...])
4685         ;;
4686 SPARC)
4687         AC_DEFINE(TARGET_SPARC, 1, [...])
4688         ;;
4689 SPARC64)
4690         AC_DEFINE(TARGET_SPARC64, 1, [...])
4691         ;;
4692 RISCV32)
4693         AC_DEFINE([TARGET_RISCV], [1], [Target is RISC-V])
4694         AC_DEFINE([TARGET_RISCV32], [1], [Target is 32-bit RISC-V])
4695         ;;
4696 RISCV64)
4697         AC_DEFINE([TARGET_RISCV], [1], [Target is RISC-V])
4698         AC_DEFINE([TARGET_RISCV64], [1], [Target is 64-bit RISC-V])
4699         ;;
4700 esac
4702 case "$TARGET" in
4703 *32* | ARM | X86 | POWERPC | MIPS | SPARC | WASM | ARM6432)
4704     target_sizeof_void_p=4
4705     ;;
4706 *64* | S390X)
4707     target_sizeof_void_p=8
4708     ;;
4710     AC_MSG_ERROR([unknown target])
4711     ;;
4712 esac
4714 case "$HOST" in
4715 WASM)
4716         AC_DEFINE(HOST_WASM, 1, [...])
4717         ;;
4718 X86)
4719         AC_DEFINE(HOST_X86, 1, [...])
4720         ;;
4721 AMD64)
4722         AC_DEFINE(HOST_AMD64, 1, [...])
4723         ;;
4724 ARM)
4725         AC_DEFINE(HOST_ARM, 1, [...])
4726         ;;
4727 ARM64)
4728         AC_DEFINE(HOST_ARM64, 1, [...])
4729         ;;
4730 POWERPC)
4731         AC_DEFINE(HOST_POWERPC, 1, [...])
4732         ;;
4733 POWERPC64)
4734         AC_DEFINE(HOST_POWERPC, 1, [...])
4735         AC_DEFINE(HOST_POWERPC64, 1, [...])
4736         ;;
4737 S390X)
4738         AC_DEFINE(HOST_S390X, 1, [...])
4739         ;;
4740 MIPS)
4741         AC_DEFINE(HOST_MIPS, 1, [...])
4742         ;;
4743 SPARC)
4744         AC_DEFINE(HOST_SPARC, 1, [...])
4745         ;;
4746 SPARC64)
4747         AC_DEFINE(HOST_SPARC64, 1, [...])
4748         ;;
4749 RISCV32)
4750         AC_DEFINE([HOST_RISCV], [1], [Host is RISC-V])
4751         AC_DEFINE([HOST_RISCV32], [1], [Host is 32-bit RISC-V])
4752         ;;
4753 RISCV64)
4754         AC_DEFINE([HOST_RISCV], [1], [Host is RISC-V])
4755         AC_DEFINE([HOST_RISCV64], [1], [Host is 64-bit RISC-V])
4756         ;;
4757 esac
4759 MONO_ARCH_GSHAREDVT_SUPPORTED=0
4760 case "$HOST" in
4761 X86 | AMD64 | ARM | ARM64)
4762         MONO_ARCH_GSHAREDVT_SUPPORTED=1 # keep in sync with mini-{x86,amd64,arm,arm64}.h
4763         ;;
4764 esac
4766 AM_CONDITIONAL(MONO_ARCH_GSHAREDVT_SUPPORTED, test $MONO_ARCH_GSHAREDVT_SUPPORTED = 1)
4767 AM_CONDITIONAL(TARGET_WASM, test $arch_target = wasm)
4769 dnl *************
4770 dnl *** VTUNE ***
4771 dnl *************
4773 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
4774 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
4776 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
4778 if test "x$enable_vtune" = "xyes"; then
4779         if test "x$with_vtune" = "x"; then
4780                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
4781         else
4782                 VTUNE_PATH=$with_vtune
4783         fi
4784         VTUNE_INCLUDE=$VTUNE_PATH/include
4785         case "$TARGET" in
4786         X86)
4787                 VTUNE_LIB=$VTUNE_PATH/lib32
4788                 ;;
4789         AMD64)
4790                 VTUNE_LIB=$VTUNE_PATH/lib64
4791                 ;;
4792         *)
4793                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
4794                 ;;
4795         esac
4796         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
4797                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
4798         fi
4799         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
4800                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
4801         fi
4803         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
4804         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
4806         AC_SUBST(VTUNE_LIBS)
4807         AC_SUBST(VTUNE_CFLAGS)
4809 dnl Use GCC atomic ops if they work on the target.
4810 if test x$GCC = "xyes"; then
4811         case $TARGET in
4812         X86 | AMD64 | ARM | ARM64 | ARM6432 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64 | RISCV32 | RISCV64)
4813                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
4814                 ;;
4815         esac
4818 if test "x$target_mach" = "xyes"; then
4820    if test "x$TARGET_SYS" = "xWATCHOS"; then
4821           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
4822           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
4823           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
4824           BTLS_SUPPORTED=no
4825    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64" -o "x$TARGET" = "xARM6432"; then
4826           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
4827           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
4828           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
4829           BTLS_SUPPORTED=no
4830           target_ios=yes
4831    else
4832        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
4833        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
4834        #error fail this for ios
4835        #endif
4836        ], [
4837                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
4838           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
4839           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
4840           target_osx=yes
4841        ], [
4842           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
4843           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
4844           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
4845           BTLS_SUPPORTED=no
4846                   target_ios=yes
4847        ])
4848         fi
4849    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
4852 AM_CONDITIONAL(TARGET_OSX, test x$target_osx = xyes)
4854 AC_SUBST(SIZEOF_VOID_P,[$ac_cv_sizeof_void_p])
4856 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
4857    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
4858 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
4859    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
4860 else
4861    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
4864 AC_DEFINE_UNQUOTED(TARGET_SIZEOF_VOID_P,${target_sizeof_void_p},[wordsize of target])
4866 if test "x$sizeof_register" = "x4"; then
4867   AC_DEFINE(SIZEOF_REGISTER,4,[size of target machine integer registers])
4868 elif test "x$sizeof_register" = "x8"; then
4869   AC_DEFINE(SIZEOF_REGISTER,8,[size of target machine integer registers])
4870 else
4871   AC_DEFINE_UNQUOTED(SIZEOF_REGISTER,${target_sizeof_void_p},[size of target machine integer registers])
4874 # zlib/configure detects visibility support similarly and defines HAVE_HIDDEN
4875 # on the compiler command line (not config.h).
4876 if test "x$have_visibility_hidden" = "xyes"; then
4877    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
4878    ZLIB_CFLAGS="$ZLIB_CFLAGS -DHAVE_HIDDEN"
4881 if test "x$have_deprecated" = "xyes"; then
4882    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
4885 dnl 
4886 dnl Simple Generational checks (sgen)
4888 SGEN_DEFINES=
4889 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
4890 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
4891 if test x$buildsgen = xyes; then
4892    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
4893    SGEN_DEFINES="-DHAVE_SGEN_GC"
4895         conc_gc_msg=""
4896    if test x$with_sgen_default_concurrent != xno; then
4897        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
4898            conc_gc_msg=" (concurrent by default)"
4899    fi
4901    if test "x$gc_msg" = "x"; then
4902       gc_msg="sgen$conc_gc_msg"
4903    else
4904       gc_msg="sgen$conc_gc_msg and $gc_msg"
4905    fi
4907 AC_SUBST(SGEN_DEFINES)
4908 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
4910 jit_status="Building and using the JIT"
4912 libsuffix=".so"
4914 case "$host" in
4915      *-*-aix*)
4916         dnl on AIX/PASE, shared libraries can be and usually are inside archives
4917         dnl so, we specify them by libfoo.a(libfoo.so.0) for libtool's conventions,
4918         dnl or libfoo.a(shr[_64].o) for the AIX system convention,
4919         dnl or lib.so[.0](shr[_64].o) for libtool's hybrid convention
4920         dnl we may hardcode 64-bit names at times, but we don't do 32-bit AIX
4921         LIBC="libc.a(shr_64.o)"
4922         # Thanks, I hate it! This is crumbly, especially the one-liner.
4923         AC_MSG_CHECKING([how to dlopen libintl])
4924         AC_LINK_IFELSE([AC_LANG_SOURCE([
4925                 /* XXX: Check for libintl header/gettext func better? */
4926                 #include <libintl.h>
4928                 int main (void) {
4929                         gettext("Dummy for autoconf");
4930                         return 1;
4931                 }
4932         ])],
4933         [
4934         INTL="$(dump -X64 -Hp conftest$EXEEXT | grep libintl | cut -c 38- | tr -s " " | awk '{print $1"("$2")"}')"
4935         AC_MSG_RESULT([yes, $INTL])
4936         ],
4937         [
4938         INTL="libintl.a(libintl.so.8)"
4939         AC_MSG_RESULT([no, falling back to $INTL])
4940         ])
4941         SQLITE3="libsqlite3.a(libsqlite3.so.0)"
4942         # it's very tempting to set a libsuffix, but it depends on the soname value
4943         ;;
4944      *-*-os400*)
4945         dnl However, IBM's packages for i try to be more "normal" than the AIX world, naming wise.
4946         dnl The library archives has "normal" .so names, but they're members with predictable "shr" names for fat libraries.
4947         LIBC="libc.a(shr_64.o)"
4948         INTL="libintl.so(shr_64.o)"
4949         SQLITE3="libsqlite3.so(shr_64.o)"
4950         # likewise, it's safer to assume ".so(shr_64.o)" due to official IBM packages being built this way, but as with AIX, others may not be guaranteed
4951         # it may be worth revisiting this in the future
4952         ;;
4953      *-*-darwin*)
4954         libsuffix=".dylib"
4955         LIBC="libc.dylib"
4956         INTL="libintl.dylib"
4957         SQLITE="libsqlite.0.dylib"
4958         SQLITE3="libsqlite3.0.dylib"
4959         X11="libX11.dylib"
4960         GDKX11="libgdk-x11-2.0.dylib"
4961         GTKX11="libgtk-x11-2.0.dylib"
4962         ;;
4963      *-*-*netbsd*)
4964         LIBC="libc.so"
4965         INTL="libintl.so"
4966         SQLITE="libsqlite.so"
4967         SQLITE3="libsqlite3.so"
4968         ;;
4969      *-*-kfreebsd*-gnu)
4970         LIBC="libc.so.0.1"
4971         INTL="libc.so.0.1"
4972         X11="libX11.so.6"
4973         ;;
4974     *-*-*freebsd*)
4975         LIBC="libc.so.7"
4976         INTL="libintl.so"
4977         SQLITE="libsqlite.so"
4978         SQLITE3="libsqlite3.so"
4979         ;;
4980     *-*-*openbsd*)
4981         LIBC="libc.so"
4982         INTL="libintl.so"
4983         SQLITE="libsqlite.so"
4984         SQLITE3="libsqlite3.so"
4985         ;;
4986     *-*-*linux*)
4987         AC_PATH_X
4988         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
4989         AC_MSG_CHECKING(for the soname of libX11.so)
4990         for i in $x_libraries $dlsearch_path; do
4991                 for r in 4 5 6; do
4992                         if test -f $i/libX11.so.$r; then
4993                                 X11=libX11.so.$r
4994                                 AC_MSG_RESULT($X11)
4995                         fi
4996                 done
4997         done
4998         
4999         if test "x$X11" = "xlibX11.so"; then
5000                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
5001                 X11=libX11.so.6
5002         fi
5003         ;;
5004 esac
5006 AC_SUBST(libsuffix)
5008 ######################################
5009 # EGLIB CHECKS
5010 ######################################
5012 GNUC_PRETTY=
5013 GNUC_UNUSED=
5014 BREAKPOINT="G_STMT_START { raise (SIGTRAP); } G_STMT_END"
5015 if test x$GCC = xyes; then
5016    GNUC_UNUSED='__attribute__((__unused__))'
5017    GNUC_NORETURN='__attribute__((__noreturn__))'
5018    case $host_cpu in
5019      i*86|x86_64) BREAKPOINT="G_STMT_START { __asm__ (\"int \$03\"); } G_STMT_END" ;;
5020    esac
5022 AC_SUBST(GNUC_PRETTY)
5023 AC_SUBST(GNUC_UNUSED)
5024 AC_SUBST(GNUC_NORETURN)
5025 AC_SUBST(BREAKPOINT)
5027 AC_C_BIGENDIAN([ORDER=G_BIG_ENDIAN],[ORDER=G_LITTLE_ENDIAN])
5029 case $host in
5030 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
5031     PATHSEP='\\'
5032     SEARCHSEP=';'
5033     OS="WIN32"
5034     PIDTYPE='void *'
5035     ;;
5037     PATHSEP='/'
5038     SEARCHSEP=':'
5039     OS="UNIX"
5040     PIDTYPE='int'
5041     ;;
5042 esac
5044 case $host in
5045         *-*-solaris*)
5046         CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS"
5047         ;;
5048 esac
5050 case $target in
5051 arm*-darwin*|aarch64*-*|riscv*)
5052     CFLAGS="$CFLAGS -U_FORTIFY_SOURCE"
5053     ;;
5054 i*86-*-darwin*)
5055     ORDER=G_LITTLE_ENDIAN
5056     ;;
5057 *-*-haiku*)
5058     LDFLAGS="$LDFLAGS -ltextencoding"
5059     ;;
5060 *-*-openbsd*)
5061     CFLAGS="$CFLAGS -pthread"
5062     LDFLAGS="$LDFLAGS -pthread"
5063     ;;
5064 esac
5066 AC_SUBST(ORDER)
5067 AC_SUBST(PATHSEP)
5068 AC_SUBST(SEARCHSEP)
5069 AC_SUBST(OS)
5070 AC_SUBST(PIDTYPE)
5072 # Defined for all targets/platforms using classic Windows API support.
5073 AC_DEFINE(HAVE_CLASSIC_WINAPI_SUPPORT, 1, [Use classic Windows API support])
5074 AC_DEFINE(HAVE_UWP_WINAPI_SUPPORT, 0, [Don't use UWP Windows API support])
5076 AC_CHECK_FUNCS(strlcpy stpcpy strtok_r rewinddir vasprintf)
5077 AC_CHECK_FUNCS(getrlimit)
5078 AC_CHECK_FUNCS(fork execv execve)
5079 AC_CHECK_FUNCS(waitpid)
5081 AC_ARG_WITH([overridable-allocators], [  --with-overridable-allocators  allow g_*alloc/g_free to call custom allocators set via g_mem_set_vtable])
5083 if test x$with_overridable_allocators = xyes; then
5084         AC_DEFINE(ENABLE_OVERRIDABLE_ALLOCATORS,1,[Overridable allocator support enabled])
5085   AC_MSG_NOTICE([Overridable allocator support enabled])
5086 else
5087   AC_MSG_NOTICE([Overridable allocator support disabled])
5091 # Mono currently supports 10.6, but strndup is not available prior to 10.7; avoiding
5092 # the detection of strndup on OS X so Mono built on 10.7+ still runs on 10.6. This can be
5093 # removed once support for 10.6 is dropped.
5095 # iOS detection of strndup and getpwuid_r is faulty for some reason so let's simply avoid it
5097 if test x$target_osx = xyes; then
5098 AC_CHECK_FUNCS(getpwuid_r)
5099 elif test x$target_ios = xno; then
5100 AC_CHECK_FUNCS(strndup getpwuid_r)
5103 AC_SEARCH_LIBS(sqrtf, m)
5105 # nanosleep may not be part of libc, also search it in other libraries
5106 AC_SEARCH_LIBS(nanosleep, rt)
5108 AC_SEARCH_LIBS(dlopen, dl)
5110 # AIX/OS400 -bsymbolic
5111 # Apple -bind_at_load
5112 # The rest GNU.
5114 AX_APPEND_LINK_FLAGS([-Wl,-export-dynamic -Wl,-Bsymbolic -bsymbolic -Wl,-z,now -Wl,-bind_at_load])
5116 AC_CHECK_HEADERS(getopt.h sys/select.h sys/time.h sys/wait.h pwd.h iconv.h sys/types.h sys/resource.h)
5117 dnl giconv.c will check on HAVE_ICONV_H but we need this for link time
5118 AC_CHECK_LIB(iconv, iconv_open)
5119 AC_CHECK_HEADER(alloca.h, [HAVE_ALLOCA_H=1], [HAVE_ALLOCA_H=0])
5120 AC_SUBST(HAVE_ALLOCA_H)
5122 # Get the exact type of size_t, not just its size.
5123 # This is so we can find an exact printf format among u, lu, llu, I64u.
5124 # To avoid warnings about slight mismatches.
5125 # C99 runtime "zu" dependency is being avoided here.
5127 # We have to compile as C++ because C is too lenient
5128 # and lets the wrong thing compile, with warnings.
5130 # Note: "zu" or ifdef <something> have the advantage
5131 # of producing installable "biarch" headers. i.e. one Mac header
5132 # for Mac/x86 and Mac/amd64.
5134 AC_LANG_PUSH(C++)
5136 # Check long before int because it is the overwhelming Unix answer,
5137 # across 32bit and 64bit systems -- fewer compiler invocations in autoconf.
5139 # long ahead of int also tends to produce biarch-compatible headers except Windows.
5141 AC_MSG_CHECKING(if size_t is unsigned long)
5142 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
5143         #include <stddef.h>
5144         unsigned long *a = (size_t*)0;
5145 ])], [
5146         AC_MSG_RESULT(yes)
5147         AC_SUBST(GSIZE_FORMAT, '"lu"')
5148 ], [
5149         AC_MSG_RESULT(no)
5150         AC_MSG_CHECKING(if size_t is unsigned int)
5151         AC_COMPILE_IFELSE([AC_LANG_SOURCE([
5152                 #include <stddef.h>
5153                 unsigned *a = (size_t*)0;
5154         ])], [
5155                 AC_MSG_RESULT(yes)
5156                 AC_SUBST(GSIZE_FORMAT, '"u"')
5157         ], [
5158 # At this point the majority of systems have their answer,
5159 # and we descend into non-standard or new-standard territory.
5161 # Check __int64 first because I64 on some systems predates ll, enabling
5162 # new compiler/old runtime interop, and the types always have the same size.
5163                 AC_MSG_RESULT(no)
5164                 AC_MSG_CHECKING(if size_t is unsigned __int64)
5165                 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
5166                         #include <stddef.h>
5167                         unsigned __int64 *a = (size_t*)0;
5168                 ])], [
5169                         AC_MSG_RESULT(yes)
5170                         AC_SUBST(GSIZE_FORMAT, '"I64u"')
5171                 ], [
5172                         AC_MSG_RESULT(no)
5173                         AC_MSG_CHECKING(if size_t is unsigned long long)
5174                         AC_COMPILE_IFELSE([AC_LANG_SOURCE([
5175                                 #include <stddef.h>
5176                                 unsigned long long *a = (size_t*)0;
5177                         ])], [
5178                                 AC_MSG_RESULT(yes)
5179                                 AC_SUBST(GSIZE_FORMAT, '"llu"')
5180                         ], [
5181                                 AC_MSG_RESULT(no)
5182                                 AC_MSG_ERROR(Unable to determine size_t among unsigned long, int, __int64, long long)
5183                         ] )
5184                 ] )
5185         ] )
5186 ] )
5188 AC_LANG_POP
5190 # If size_t/ptrdiff_t is correct, use it. Otherwise C99 [u]intptr_t.
5191 # This provides for an exact match with functions that
5192 # take size_t like malloc and pthread_attr_getstacksize, avoiding warnings.
5193 # uintptr_t is not necessarily the same.
5195 # ptrdiff_t is preferred over ssize_t as it is C89 vs. new Posix.
5196 # ssize_t looks nicer but ptrdiff_t is wrapped up as gssize anyway.
5198 if test $ac_cv_sizeof_void_p = $ac_cv_sizeof_size_t; then
5199    GSIZE="size_t"
5200    GSSIZE="ptrdiff_t"
5201 else
5202    GSIZE="uintptr_t"
5203    GSSIZE="intptr_t"
5206 AC_SUBST(GSIZE)
5207 AC_SUBST(GSSIZE)
5208 AC_SUBST(GSIZE_FORMAT)
5211 # END OF EGLIB CHECKS
5214 AC_ARG_WITH([libgdiplus],
5215         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
5216         [], [with_libgdiplus=installed])
5218 # default install location
5219 libgdiplus_install_loc=libgdiplus${libsuffix}
5220 case "$host" in
5221     *-*-*linux*)
5222     libgdiplus_install_loc=libgdiplus${libsuffix}.0
5223     ;;
5224 esac
5226 case $with_libgdiplus in
5227     no)
5228     libgdiplus_loc=
5229     ;;
5231     installed)
5232     libgdiplus_loc=
5233     if test x$cross_compiling = xno; then
5234         if test x$host_darwin = xyes; then
5235             a=/Library/Frameworks/Mono.framework/Versions/Current/lib/$libgdiplus_install_loc
5236             if test -x $a; then
5237               libgdiplus_install_loc=$a
5238               libgdiplus_loc=$a
5239             fi
5240         fi
5241     fi
5242     ;;
5244     yes|sibling)
5245     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
5246     ;;
5248     /*) # absolute path, assume it is an install location
5249     libgdiplus_loc=$with_libgdiplus
5250     libgdiplus_install_loc=$with_libgdiplus
5251     ;;
5253     *)
5254     libgdiplus_loc=`pwd`/$with_libgdiplus
5255     ;;
5256 esac
5257 AC_SUBST(libgdiplus_loc)
5258 AC_SUBST(libgdiplus_install_loc)
5260 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
5261 if test "x$icall_symbol_map" = "xyes"; then
5262    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
5265 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
5266 if test "x$icall_export" = "xyes"; then
5267    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
5270 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
5271 if test "x$icall_tables" = "xno"; then
5272    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
5275 AM_CONDITIONAL(DISABLE_ICALL_TABLES, test x$icall_tables = xno)
5277 if test "x$with_tls" = "x__thread"; then
5278         AC_DEFINE(MONO_KEYWORD_THREAD, __thread, [Have __thread keyword])
5279         # Pass the information to libgc
5280         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
5281         AC_MSG_CHECKING(if the tls_model attribute is supported)
5282         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
5283                 ], [
5284                         AC_MSG_RESULT(yes)
5285                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
5286                 ], [
5287                         AC_MSG_RESULT(no)
5288         ])
5291 if test ${TARGET} = ARM; then
5292         dnl ******************************************
5293         dnl *** Check to see what FPU is available ***
5294         dnl ******************************************
5295         AC_MSG_CHECKING(which FPU to use)
5297         #
5298         # This is a bit tricky:
5299         #
5300         # if (__ARM_PCS_VFP) {
5301         #       /* mfloat-abi=hard == VFP with hard ABI */
5302         # } elif (!__SOFTFP__) {
5303         #       /* mfloat-abi=softfp == VFP with soft ABI */
5304         # } else {
5305         #       /* mfloat-abi=soft == no VFP */
5306         # }
5307         #
5308         # The exception is iOS (w/ GCC) where none of the above
5309         # are defined (but iOS always uses the 'softfp' ABI).
5310         #
5311         # No support for FPA.
5312         #
5314         fpu=NONE
5316         # iOS GCC always uses the 'softfp' ABI.
5317         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
5318                 fpu=VFP
5319         fi
5321         # Are we using the 'hard' ABI?
5322         if test x$fpu = xNONE; then
5323                 AC_TRY_COMPILE([], [
5324                         #ifndef __ARM_PCS_VFP
5325                         #error "Float ABI is not 'hard'"
5326                         #endif
5327                 ], [
5328                         fpu=VFP_HARD
5329                 ], [
5330                         fpu=NONE
5331                 ])
5332         fi
5334         # No 'hard' ABI. 'soft' or 'softfp'?
5335         if test x$fpu = xNONE; then
5336                 AC_TRY_COMPILE([], [
5337                         #ifdef __SOFTFP__
5338                         #error "Float ABI is not 'softfp'"
5339                         #endif
5340                 ], [
5341                         fpu=VFP
5342                 ], [
5343                         fpu=NONE
5344                 ])
5345         fi
5347         if test x$arm_fpu != x; then
5348            fpu=$arm_fpu
5349         fi
5351         AC_MSG_RESULT($fpu)
5352         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
5353         unset fpu
5355         dnl *********************************************
5356         dnl *** Check which ARM version(s) we can use ***
5357         dnl *********************************************
5358         AC_MSG_CHECKING(which ARM version to use)
5360         AC_TRY_COMPILE([], [
5361                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
5362                 #error Not on ARM v5.
5363                 #endif
5364         ], [
5365                 arm_v5=yes
5367                 arm_ver=ARMv5
5368         ], [])
5370         AC_TRY_COMPILE([], [
5371                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
5372                 #error Not on ARM v6.
5373                 #endif
5374         ], [
5375                 arm_v5=yes
5376                 arm_v6=yes
5378                 arm_ver=ARMv6
5379         ], [])
5381         AC_TRY_COMPILE([], [
5382                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
5383                 #error Not on ARM v7.
5384                 #endif
5385         ], [
5386                 arm_v5=yes
5387                 arm_v6=yes
5388                 arm_v7=yes
5390                 arm_ver=ARMv7
5391         ], [])
5393         AC_MSG_RESULT($arm_ver)
5395         if test x$arm_v5 = xyes; then
5396                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
5397                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
5398         fi
5400         if test x$arm_v6 = xyes; then
5401                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
5402                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
5403         fi
5405         if test x$arm_v7 = xyes; then
5406                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
5407                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
5408         fi
5410         if test x$host_linux = xyes; then
5411                 RID="linux-arm"
5412                 COREARCH="arm"
5413                 if test x$fpu = xNONE; then
5414                         RID="linux-armel"
5415                         COREARCH="armel"
5416                 fi
5417         fi
5420 AC_SUBST(RID)
5421 AC_SUBST(COREARCH)
5422 AC_SUBST(CORETARGETS)
5424 if test ${TARGET} = RISCV32 -o ${TARGET} = RISCV64; then
5425         AC_ARG_WITH([riscv-fpabi], [  --with-riscv-fpabi=auto,double,soft   Select RISC-V floating point ABI (auto)], [fpabi=$withval], [fpabi=double])
5427         AC_MSG_CHECKING([which RISC-V floating point ABI to use])
5429         if test x$fpabi = xauto; then
5430                 AC_TRY_COMPILE([], [
5431                         #ifdef __riscv_float_abi_double
5432                         #error "double"
5433                         #endif
5434                 ], [
5435                         fpabi=auto
5436                 ], [
5437                         fpabi=double
5438                 ])
5439         fi
5441         if test x$fpabi = xauto; then
5442                 AC_TRY_COMPILE([], [
5443                         #ifdef __riscv_float_abi_single
5444                         #error "single"
5445                         #endif
5446                 ], [
5447                         fpabi=auto
5448                 ], [
5449                         fpabi=single
5450                 ])
5451         fi
5453         if test x$fpabi = xauto; then
5454                 AC_TRY_COMPILE([], [
5455                         #ifdef __riscv_float_abi_soft
5456                         #error "soft"
5457                         #endif
5458                 ], [
5459                         fpabi=auto
5460                 ], [
5461                         fpabi=soft
5462                 ])
5463         fi
5465         case $fpabi in
5466         double)
5467                 AC_DEFINE([RISCV_FPABI_DOUBLE], [1], [RISC-V FPABI is double-precision])
5468                 AC_MSG_RESULT([double-precision])
5469                 ;;
5470         single)
5471                 AC_DEFINE([RISCV_FPABI_SINGLE], [1], [RISC-V FPABI is single-precision])
5472                 AC_MSG_ERROR([single-precision, not supported])
5473                 ;;
5474         soft)
5475                 AC_DEFINE([RISCV_FPABI_SOFT], [1], [RISC-V FPABI is soft float])
5476                 AC_MSG_RESULT([soft float])
5477                 ;;
5478         auto)
5479                 AC_MSG_ERROR([unknown])
5480                 ;;
5481         *)
5482                 AC_MSG_ERROR([invalid option: $fpabi])
5483                 ;;
5484         esac
5487 if test ${TARGET} = unknown; then
5488         CPPFLAGS="$CPPFLAGS -DNO_PORT"
5489         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
5492 if test "x$platform_android" = "xyes"; then
5493         case "x${TARGET}" in
5494         xARM)
5495                 case "x$arm_ver" in
5496                 xARMv5)
5497                         BTLS_SUPPORTED=yes
5498                         BTLS_PLATFORM=android-armv5
5499                         ;;
5500                 xARMv6)
5501                         BTLS_SUPPORTED=yes
5502                         BTLS_PLATFORM=android-armv6
5503                         ;;
5504                 xARMv7)
5505                         BTLS_SUPPORTED=yes
5506                         BTLS_PLATFORM=android-armv7
5507                         ;;
5508                 *)
5509                         BTLS_SUPPORTED=no
5510                         ;;
5511                 esac
5512                 ;;
5513         xARM64)
5514                 BTLS_SUPPORTED=yes
5515                 BTLS_PLATFORM=android-v8a
5516                 ;;
5517         xX86)
5518                 BTLS_SUPPORTED=yes
5519                 BTLS_PLATFORM=android-x86
5520                 ;;
5521         xAMD64)
5522                 BTLS_SUPPORTED=yes
5523                 BTLS_PLATFORM=android-x64
5524                 ;;
5525         *)
5526                 BTLS_SUPPORTED=no
5527                 ;;
5528         esac
5531 if test ${ACCESS_UNALIGNED} = no; then
5532         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
5535 if test x$host_darwin = xyes; then
5536         AC_MSG_CHECKING([for ranlib that supports -no_warning_for_no_symbols option])
5537         AS_IF(
5538                 [$RANLIB -no_warning_for_no_symbols 2>&1 | grep -q "unknown option"],
5539                 [AC_MSG_RESULT([no])],
5540                 [
5541                         # avoid AR calling ranlib, libtool calls it anyway. suppress no symbols warning.
5542                         AR_FLAGS="Scru"
5543                         RANLIB="$RANLIB -no_warning_for_no_symbols"
5544                         AC_MSG_RESULT([yes])
5545                 ]
5546         )
5549 case "x$libgc" in
5550         xincluded)
5551                 # Pass CPPFLAGS to libgc configure
5552                 # We should use a separate variable for this to avoid passing useless and
5553                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
5554                 # This should be executed late so we pick up the final version of CPPFLAGS
5555                 # The problem with this approach, is that during a reconfigure, the main
5556                 # configure scripts gets invoked with these arguments, so we use separate
5557                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
5558                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
5559                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
5560                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
5561                 fi
5562                 # Don't pass -finstrument-for-thread-suspension in, 
5563                 # if these are instrumented it will be very bad news 
5564                 # (infinite recursion, undefined parking behavior, etc)
5565                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
5566                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
5567                 if test "x$support_boehm" = "xyes"; then
5568                         AC_CONFIG_SUBDIRS(libgc)
5569                 fi
5570                 ;;
5571 esac
5573 MALLOC_MEMPOOLS=no
5574 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
5575         if test x$with_malloc_mempools = xyes; then
5576                 MALLOC_MEMPOOLS=yes
5577                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
5578         fi
5582 DISABLE_MCS_DOCS=default
5583 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
5584         if test x$with_mcs_docs != xyes; then
5585                 DISABLE_MCS_DOCS=yes
5586         fi
5588 if test -n "$INSTALL_4_x_TRUE"; then :
5589         DISABLE_MCS_DOCS=yes
5591 if test "x$DISABLE_MCS_DOCS" = "xdefault"; then
5592    DISABLE_MCS_DOCS=$DISABLE_MCS_DOCS_default
5595 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
5596         if test x$with_lazy_gc_thread_creation != xno ; then
5597                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
5598         fi
5599 ], [with_lazy_gc_thread_creation=no])
5601 dnl *****************************
5602 dnl *** Thread suspend policy ***
5603 dnl *****************************
5605 dnl Set a default hybrid or cooperative suspend on some platforms
5607 dnl Coop default is set by the bitcode preset.
5609 dnl If coop isn't on by default, maybe hybrid should be?
5610 if test x$enable_cooperative_suspend_default != xyes; then
5611         case $HOST in
5612         X86 | AMD64)
5613                 dnl Some host/target confusion, there's no host_osx (and
5614                 dnl host_darwin would be true on iOS not just macOS).
5615                 if test x$target_osx = xyes; then
5616                         enable_hybrid_suspend_default=yes
5617                 elif test x$host_linux = xyes -o x$host_win32 = xyes; then
5618                         enable_hybrid_suspend_default=yes
5619                 fi
5620                 ;;
5621         esac
5624 dnl Now check if there were flags overriding the defaults
5626 AC_ARG_WITH(cooperative_gc,        [  --with-cooperative-gc=yes|no        Enable cooperative stop-the-world garbage collection (sgen only) (defaults to no)], [AC_MSG_WARN([--with-cooperative-gc is deprecated, use --enable-cooperative-suspend instead])], [with_cooperative_gc=default])
5627 AC_ARG_ENABLE(cooperative_suspend, [  --enable-cooperative-suspend      Enable cooperative stop-the-world garbage collection (sgen only) (defaults to no)], [], [enable_cooperative_suspend=default])
5629 if test x$enable_cooperative_suspend = xdefault -a x$with_cooperative_gc != xdefault; then
5630         enable_cooperative_suspend=$with_cooperative_gc
5633 if test x$enable_cooperative_suspend = xdefault; then
5634         enable_cooperative_suspend=$enable_cooperative_suspend_default
5637 if test x$enable_cooperative_suspend != xno; then
5638         AC_DEFINE(ENABLE_COOP_SUSPEND,1,[Enable cooperative stop-the-world garbage collection.])
5641 AM_CONDITIONAL([ENABLE_COOP_SUSPEND], [test x$enable_cooperative_suspend != xno])
5643 AC_ARG_ENABLE(hybrid_suspend, [ --enable-hybrid-suspend     Enable hybrid stop-the-world garbage collection (sgen only) - cooperative suspend for threads running managed and runtime code, and preemptive suspend for threads running native and P/Invoke code (defaults to no)], [], [enable_hybrid_suspend=default])
5645 if test x$enable_hybrid_suspend = xdefault; then
5646    enable_hybrid_suspend=$enable_hybrid_suspend_default
5649 if test x$enable_hybrid_suspend != xno -a x$enable_cooperative_suspend != xno ; then
5650         AC_MSG_ERROR([Hybrid suspend and Cooperative suspend cannot be both enabled.])
5653 if test x$enable_hybrid_suspend != xno ; then
5654         AC_DEFINE(ENABLE_HYBRID_SUSPEND,1,[Enable hybrid suspend for GC stop-the-world])
5657 AM_CONDITIONAL([ENABLE_HYBRID_SUSPEND], [test x$enable_hybrid_suspend != xno])
5659 dnl End of thread suspend policy
5661 dnl *******************************
5662 dnl *** Copy stack data support ***
5663 dnl *******************************
5665 dnl Disable copy_stack_data on platforms supporting full context and
5666 dnl having access to full stack of running threads.
5667 if test x$enable_copy_stack_data_default != xno; then
5668         case $HOST in
5669         X86 | AMD64)
5670                 if test x$target_osx = xyes; then
5671                         dnl Some host/target confusion, there's no host_osx (and
5672                         dnl host_darwin would be true on iOS not just macOS).
5673                         enable_copy_stack_data_default=no
5674                 elif test x$host_linux = xyes -o x$host_win32 = xyes; then
5675                         enable_copy_stack_data_default=no
5676                 fi
5677                 ;;
5678         esac
5681 AC_ARG_ENABLE(copy_stack_data, [ --enable-copy-stack-data     Enable copy_stack_data feature for hybrid/cooperative suspend scenarios, (defaults to yes)], [], [enable_copy_stack_data=default])
5683 if test x$enable_copy_stack_data = xdefault; then
5684    enable_copy_stack_data=$enable_copy_stack_data_default
5687 if test x$enable_copy_stack_data != xno ; then
5688         AC_DEFINE(ENABLE_COPY_STACK_DATA,1,[Enable copy_stack_data feature for hybrid/cooperative suspend scenarios])
5691 dnl End of Copy stack data support
5693 dnl ***************************
5694 dnl *** feature experiments ***
5695 dnl ***************************
5697 dnl When adding experiments, also add to mono/utils/mono-experiments.def
5698 AC_ARG_ENABLE(experiment, [ --enable-experiment=LIST       Enable experimental fatures from the comma-separate LIST.  Available experiments: null],[
5700         if test x$enable_experiment != x ; then
5701                 AC_DEFINE(ENABLE_EXPERIMENTS,1,[Enable feature experiments])
5702         fi
5703         for feature in `echo "$enable_experiment" | sed -e "s/,/ /g"`; do
5704                 eval "mono_experiment_test_enable_$feature='yes'"
5705         done
5707         if test "x$mono_experiment_test_enable_all" = "xyes"; then
5708                 eval "mono_experiment_test_enable_null='yes'"
5709                 true
5710         fi
5712         if test "x$mono_experiment_test_enable_null" = "xyes"; then
5713                 AC_DEFINE(ENABLE_EXPERIMENT_null, 1, [Enable experiment 'null'])
5714         fi
5715 ],[])
5717 dnl **********************
5718 dnl *** checked builds ***
5719 dnl **********************
5721 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, private_types, crash_reporting],[
5723         if test x$enable_checked_build != x ; then
5724                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
5725         fi
5726         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
5727                 eval "mono_checked_build_test_enable_$feature='yes'"
5728         done
5730         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
5731                 eval "mono_checked_build_test_enable_gc='yes'"
5732                 eval "mono_checked_build_test_enable_metadata='yes'"
5733                 eval "mono_checked_build_test_enable_thread='yes'"
5734                 eval "mono_checked_build_test_enable_private_types='yes'"
5735                 eval "mono_checked_build_test_enable_crash_reporting='yes'"
5736         fi
5738         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
5739                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
5740         fi
5742         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
5743                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
5744         fi
5746         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
5747                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
5748         fi
5750         if test "x$mono_checked_build_test_enable_private_types" = "xyes"; then
5751                 AC_DEFINE(ENABLE_CHECKED_BUILD_PRIVATE_TYPES, 1, [Enable private types checked build])
5752         fi
5754         if test "x$mono_checked_build_test_enable_crash_reporting" = "xyes"; then
5755                 # Required
5756                 with_overridable_allocators=yes
5757                 AC_DEFINE(ENABLE_OVERRIDABLE_ALLOCATORS,1,[Overridable allocator support enabled])
5759                 AC_DEFINE(ENABLE_CHECKED_BUILD_CRASH_REPORTING, 1, [Enable private types checked build])
5760         fi
5761 ], [])
5763 dnl End of checked builds
5765 AM_CONDITIONAL(NEED_VASPRINTF, test x$ac_cv_func_vasprintf = xno || test x$with_overridable_allocators = xyes)
5767 AC_CHECK_HEADER([malloc.h], 
5768                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1], 
5769                         [Define to 1 if you have /usr/include/malloc.h.])],,)
5771 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
5772 # instead of libmono-static.a
5773 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
5774    LIBMONO_LA=libmini-static.la
5775 else
5776    if test x$buildsgen = xyes; then
5777       LIBMONO_LA=libmonosgen-$API_VER.la
5778    else
5779       LIBMONO_LA=libmonoboehm-$API_VER.la
5780    fi
5782 AC_SUBST(LIBMONO_LA)
5784 dnl **************
5785 dnl ***  Btls  ***
5786 dnl **************
5788 AC_ARG_ENABLE(btls, [  --disable-btls             Disable the BoringTls provider], enable_btls=$enableval, enable_btls=$BTLS_SUPPORTED)
5789 AC_ARG_ENABLE(btls-lib, [  --disable-btls-lib             Disable building the BTLS native library], enable_btls_lib=$enableval, enable_btls_lib=$BTLS_SUPPORTED)
5790 AC_ARG_WITH(btls_android_ndk, [  --with-btls-android-ndk        Android NDK for BoringTls])
5791 AC_ARG_WITH(btls_android_api, [  --with-btls-android-api        Android NDK API level for BTLS build])
5792 AC_ARG_WITH(btls_android_cmake_toolchain, [  --with-btls-android-cmake-toolchain        Path to the cmake toolchain file for Android])
5793 AC_ARG_WITH(btls_android_ndk_asm_workaround, [  --with-btls-android-ndk-asm-workaround        Work around a problem with NDK r18+ clang compiler when compiling some AES assembly for ARM])
5795 if test "x$with_btls_android_api" = "x" ; then
5796         case "$BTLS_PLATFORM" in
5797                 android-armv5)
5798                         with_btls_android_api=16" ;;
5799                 android-armv6)
5800                         with_btls_android_api=16" ;;
5801                 android-armv7)
5802                         with_btls_android_api=16 ;;
5803                 android-v8a)
5804                         with_btls_android_api=21 ;;
5805                 android-x86)
5806                         with_btls_android_api=16 ;;
5807                 android-x64)
5808                         with_btls_android_api=21 ;;
5809         esac
5812 if test "x$enable_btls" = "xno"; then
5813    enable_btls_lib=no
5816 AM_CONDITIONAL(BTLS, test x$enable_btls_lib = xyes)
5818 btls_android=no
5819 if test "x$enable_btls" = "xyes"; then
5820         AC_PATH_PROG(CMAKE, [cmake], [no], [$PATH:/Applications/CMake.app/Contents/bin:/usr/local/bin])
5821         if test "x$CMAKE" = "xno"; then
5822                 AC_MSG_ERROR("cmake not found")
5823         fi
5825         BTLS_ROOT=`cd $srcdir && pwd`/external/boringssl
5826         AC_SUBST(BTLS_ROOT)
5828         btls_arch=
5829         btls_cflags=
5830         BTLS_CMAKE_ARGS=
5832         if test "x$host_win32" = "xyes"; then
5833                 AC_CHECK_PROG(HAVE_YASM, yasm, yes, no)
5834         fi
5836         case "$BTLS_PLATFORM" in
5837         i386)
5838                 btls_arch=i386
5839                 btls_cflags="-m32"
5840                 case $host_os in
5841                         darwin*)
5842                                 btls_cflags="$btls_cflags -arch i386"
5843                                 ;;
5844                         mingw*|cygwin*)
5845                                 btls_cflags="-DNOCRYPT $WIN32_CPPFLAGS"
5846                                 if test "x$HAVE_YASM" != "xyes"; then
5847                                         BTLS_CMAKE_ARGS="-DOPENSSL_NO_ASM=1"
5848                                 fi
5849                                 ;;
5850                 esac
5851                 ;;
5852         x86_64)
5853                 btls_arch=x86_64
5854                 case $host_os in
5855                         mingw*|cygwin*)
5856                                 btls_cflags="-DNOCRYPT $WIN32_CPPFLAGS"
5857                                 if test "x$HAVE_YASM" != "xyes"; then
5858                                         BTLS_CMAKE_ARGS="-DOPENSSL_NO_ASM=1"
5859                                 fi
5860                                 ;;
5861                 esac
5862                 ;;
5863         arm)
5864                 btls_arch=arm
5865                 btls_cflags="-DOPENSSL_NO_ASM=1"
5866                 ;;
5867         armsoft)
5868                 btls_arch=arm
5869                 btls_cflags="-DOPENSSL_NO_ASM=1"
5870                 ;;
5871         aarch64)
5872                 btls_arch=aarch64
5873                 btls_cflags="-march=armv8-a+crypto"
5874                 ;;
5875         s390x)
5876                 btls_arch=s390x
5877                 ;;
5878         powerpc)
5879                 btls_arch=powerpc
5880                 case $host_os in
5881                         aix*|os400*)
5882                                 btls_cflags="$btls_cflags -maix64 -mminimal-toc -pthread -D_ALL_SOURCE -D_THREAD_SAFE -D_REENTRANT"
5883                                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DCMAKE_AR=/usr/bin/ar -DCMAKE_C_ARCHIVE_CREATE=\"<CMAKE_AR> -X64 cr <TARGET> <LINK_FLAGS> <OBJECTS>\""
5884                 esac
5885                 ;;
5886         android-armv5)
5887                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5888                 ;;
5889         android-armv6)
5890                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5891                 ;;
5892         android-armv7)
5893                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi-v7a\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5894                 ;;
5895         android-v8a)
5896                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"arm64-v8a\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5897                 ;;
5898         android-x86)
5899                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5900                 ;;
5901         android-x64)
5902                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86_64\" -DANDROID_NATIVE_API_LEVEL=$with_btls_android_api"
5903                 ;;
5904         riscv32)
5905                 btls_arch=riscv32
5906                 ;;
5907         riscv64)
5908                 btls_arch=riscv64
5909                 ;;
5910         *)
5911                 AC_MSG_ERROR(Invalid BTLS platform)
5912         esac
5914         if test "x$platform_android" = "xyes"; then
5915                 if test "x$with_btls_android_cmake_toolchain" = "x"; then
5916                    with_btls_android_cmake_toolchain="$BTLS_ROOT/util/android-cmake/android.toolchain.cmake"
5917                 fi
5919                 if test "x$with_btls_android_ndk_asm_workaround" != "x"; then
5920                    BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DENABLE_NDK_ARM_WORKAROUND=ON"
5921                 fi
5923                 btls_android=yes
5924                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=$with_btls_android_cmake_toolchain"
5925                 if test "x$with_btls_android_ndk" != "x"; then
5926                         BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DANDROID_NDK=\"$with_btls_android_ndk\""
5927                 else
5928                         AC_MSG_ERROR([Need to pass the --with-btls-android-ndk argument when building with BTLS support on Android.])
5929                 fi
5930         fi
5932         if test "x$btls_arch" != "x"; then
5933                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DBTLS_ARCH=\"$btls_arch\""
5934         fi
5936         BTLS_CFLAGS="$CPPFLAGS_FOR_BTLS $btls_cflags"
5937         AC_SUBST(BTLS_ARCH)
5938         AC_SUBST(BTLS_CFLAGS)
5939         AC_SUBST(BTLS_PLATFORM)
5940         AC_SUBST(BTLS_CMAKE_ARGS)
5942         AC_DEFINE(HAVE_BTLS, 1, [BoringTls is supported])
5943 else
5944         enable_btls=no
5947 AM_CONDITIONAL(BTLS_ANDROID, test x$btls_android = xyes)
5949 if test x$DISABLE_MCS_DOCS = xyes; then
5950    docs_dir=""
5951 else
5952    docs_dir=docs
5954 AC_SUBST(docs_dir)
5956 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
5957 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
5958 AM_CONDITIONAL(BUILD_SUPPORT, [test x$enable_support_build != xno])
5960 libmono_ldflags="$libmono_ldflags $LIBS"
5962 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
5963 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
5964 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
5965 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
5966 AM_CONDITIONAL(X86, test x$TARGET = xX86)
5967 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
5968 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
5969 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
5970 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
5971 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
5972 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64 -o x$TARGET = xARM6432)
5973 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
5974 AM_CONDITIONAL([RISCV], [test x$TARGET = xRISCV32 -o x$TARGET = xRISCV64])
5975 AM_CONDITIONAL([RISCV32], [test x$TARGET = xRISCV32])
5976 AM_CONDITIONAL([RISCV64], [test x$TARGET = xRISCV64])
5977 AM_CONDITIONAL(WASM, test x$TARGET = xWASM)
5978 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
5979 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
5980 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
5981 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
5982 AM_CONDITIONAL([HOST_RISCV], [test x$HOST = xRISCV32 -o x$HOST = xRISCV64])
5983 AM_CONDITIONAL([HOST_RISCV32], [test x$HOST = xRISCV32])
5984 AM_CONDITIONAL([HOST_RISCV64], [test x$HOST = xRISCV64])
5985 AM_CONDITIONAL(HOST_WASM, test x$HOST = xWASM)
5987 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
5989 AC_SUBST(LIBC)
5990 AC_SUBST(INTL)
5991 AC_SUBST(SQLITE)
5992 AC_SUBST(SQLITE3)
5993 AC_SUBST(ODBC)
5994 AC_SUBST(X11)
5995 AC_SUBST(GDKX11)
5996 AC_SUBST(GTKX11)
5997 AC_SUBST(XINERAMA)
5998 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
5999 AC_SUBST(arch_target)
6001 #This must always be defined when building the runtime
6002 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
6004 mono_build_root=`pwd`
6005 AC_SUBST(mono_build_root)
6007 AC_ARG_ENABLE(msvc,[  --enable-msvc    Build with Visual Studio (msvc) (defaults to no)], enable_msvc=$enableval, enable_msvc=no)
6008 if test x$host_win32 = xno; then
6009         if test x$enable_msvc = xyes; then
6010                 echo "Error, --enable-msvc only supported for Windows builds."
6011                 exit 1
6012         fi
6014 AM_CONDITIONAL(ENABLE_MSVC, test x$enable_msvc = xyes)
6016 if test "x$enable_msvc" = "xyes"; then
6017         if test "x$support_boehm" = "xyes"; then
6018                 echo "Error, Boehm GC is not supported when using --enable-msvc."
6019                 exit 1
6020         fi
6021         mono_msvc_build_dir='$(top_srcdir)'/msvc/build/sgen
6022         if test "x$host_cpu" = "xi686"; then
6023                 mono_msvc_build_lib_dir='$(mono_msvc_build_dir)'/Win32/lib/Release
6024                 mono_msvc_build_bin_dir='$(mono_msvc_build_dir)'/Win32/bin/Release
6025                 mono_runtime=msvc/build/sgen/Win32/bin/Release/mono-sgen.exe
6026                 mono_runtime_wrapper=$mono_runtime
6027         else
6028                 mono_msvc_build_lib_dir='$(mono_msvc_build_dir)'/x64/lib/Release
6029                 mono_msvc_build_bin_dir='$(mono_msvc_build_dir)'/x64/bin/Release
6030                 mono_runtime=msvc/build/sgen/x64/bin/Release/mono-sgen.exe
6031                 mono_runtime_wrapper=msvc/build/sgen/x64/bin/Release/mono-sgen-msvc.sh
6032         fi
6033         AC_SUBST(mono_msvc_build_dir)
6034         AC_SUBST(mono_msvc_build_lib_dir)
6035         AC_SUBST(mono_msvc_build_bin_dir)
6036 else
6037         mono_runtime=mono/mini/mono
6038         mono_runtime_wrapper=$mono_runtime
6041 AC_SUBST(mono_runtime)
6042 AC_SUBST(mono_runtime_wrapper)
6044 CSC_LOCATION=`cd $srcdir && pwd`/external/roslyn-binaries/Microsoft.Net.Compilers/3.1.0-release/csc.exe
6045 VBCS_LOCATION=`cd $srcdir && pwd`/external/roslyn-binaries/Microsoft.Net.Compilers/3.1.0-release/VBCSCompiler.exe
6047 if test $csc_compiler = mcs; then
6048   CSC=$mcs_topdir/class/lib/build/mcs.exe
6049 else
6050   CSC=$CSC_LOCATION
6053 AM_CONDITIONAL([CSC_IS_ROSLYN], [test x$csc_compiler != xmcs])
6055 mono_cfg_root=$mono_build_root/runtime
6056 if test x$host_win32 = xyes; then
6057   if test "x$cross_compiling" = "xno"; then
6058     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
6059     CSC=`cygpath -m -a $CSC`
6060     CSC_LOCATION=`cygpath -m -a $CSC_LOCATION`
6061     VBCS_LOCATION=`cygpath -m -a $VBCS_LOCATION`
6062   else
6063     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
6064   fi
6065 else
6066   mono_cfg_dir=$mono_cfg_root/etc
6069 if test "x$platform_android" = "xyes"; then
6070   mono_cfg_dir=
6073 AC_SUBST(mono_cfg_dir)
6075 AC_SUBST(CSC)
6077 AC_CONFIG_FILES([po/mcs/Makefile.in])
6079 AC_CONFIG_FILES([acceptance-tests/microbench-perf.sh],[chmod +x acceptance-tests/microbench-perf.sh])
6080 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
6081 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
6083 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
6084 [   depth=../../../..
6085     case $srcdir in
6086     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6087     .) reldir=$depth ;;
6088     *) reldir=$depth/$srcdir ;;
6089     esac
6090     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
6091     cd runtime/etc/mono/1.0
6092     rm -f machine.config
6093     $LN_S $reldir/data/net_1_1/machine.config machine.config
6094     cd $depth
6095 ],[LN_S='$LN_S'])
6097 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
6098 [   depth=../../../..
6099     case $srcdir in
6100     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6101     .) reldir=$depth ;;
6102     *) reldir=$depth/$srcdir ;;
6103     esac
6104     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
6105     cd runtime/etc/mono/2.0
6106     rm -f machine.config
6107     $LN_S $reldir/data/net_2_0/machine.config machine.config
6108     cd $depth
6109 ],[LN_S='$LN_S'])
6111 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
6112 [   depth=../../../..
6113     case $srcdir in
6114     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6115     .) reldir=$depth ;;
6116     *) reldir=$depth/$srcdir ;;
6117     esac
6118     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
6119     cd runtime/etc/mono/2.0
6120     rm -f web.config
6121     $LN_S $reldir/data/net_2_0/web.config web.config
6122     cd $depth
6123 ],[LN_S='$LN_S'])
6125 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
6126 [   depth=../../..
6127     case $srcdir in
6128     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6129     .) reldir=$depth ;;
6130     *) reldir=$depth/$srcdir ;;
6131     esac
6132     $ac_aux_dir/install-sh -d runtime/etc/mono/
6133     cd runtime/etc/mono/
6134     rm -f browscap.ini
6135     $LN_S $reldir/data/browscap.ini browscap.ini
6136     cd $depth
6137 ],[LN_S='$LN_S'])
6139 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
6140 [   depth=../../../../..
6141     case $srcdir in
6142     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6143     .) reldir=$depth ;;
6144     *) reldir=$depth/$srcdir ;;
6145     esac
6146     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
6147     cd runtime/etc/mono/2.0/Browsers
6148     rm -f Compat.browser
6149     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
6150     cd $depth
6151 ],[LN_S='$LN_S'])
6153 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
6154 [   depth=../../../../..
6155     case $srcdir in
6156     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6157     .) reldir=$depth ;;
6158     *) reldir=$depth/$srcdir ;;
6159     esac
6160     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
6161     cd runtime/etc/mono/4.0/Browsers
6162     rm -f Compat.browser
6163     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
6164     cd $depth
6165 ],[LN_S='$LN_S'])
6167 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
6168 [   depth=../../../../..
6169     case $srcdir in
6170     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6171     .) reldir=$depth ;;
6172     *) reldir=$depth/$srcdir ;;
6173     esac
6174     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
6175     cd runtime/etc/mono/4.5/Browsers
6176     rm -f Compat.browser
6177     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
6178     cd $depth
6179 ],[LN_S='$LN_S'])
6181 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
6182 [   depth=../../../..
6183     case $srcdir in
6184     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6185     .) reldir=$depth ;;
6186     *) reldir=$depth/$srcdir ;;
6187     esac
6188     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
6189     cd runtime/etc/mono/4.0
6190     rm -f machine.config
6191     $LN_S $reldir/data/net_4_0/machine.config machine.config
6192     cd $depth
6193 ],[LN_S='$LN_S'])
6195 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
6196 [   depth=../../../..
6197     case $srcdir in
6198     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6199     .) reldir=$depth ;;
6200     *) reldir=$depth/$srcdir ;;
6201     esac
6202     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
6203     cd runtime/etc/mono/4.0
6204     rm -f web.config
6205     $LN_S $reldir/data/net_4_0/web.config web.config
6206     cd $depth
6207 ],[LN_S='$LN_S'])
6209 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
6210 [   depth=../../../..
6211     case $srcdir in
6212     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6213     .) reldir=$depth ;;
6214     *) reldir=$depth/$srcdir ;;
6215     esac
6216     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
6217     cd runtime/etc/mono/4.5
6218     rm -f machine.config
6219     $LN_S $reldir/data/net_4_5/machine.config machine.config
6220     cd $depth
6221 ],[LN_S='$LN_S'])
6223 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
6224 [   depth=../../../..
6225     case $srcdir in
6226     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
6227     .) reldir=$depth ;;
6228     *) reldir=$depth/$srcdir ;;
6229     esac
6230     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
6231     cd runtime/etc/mono/4.5
6232     rm -f web.config
6233     $LN_S $reldir/data/net_4_5/web.config web.config
6234     cd $depth
6235 ],[LN_S='$LN_S'])
6237 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])
6238 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])
6239 AC_CONFIG_COMMANDS([clean-llvm], [rm -f llvm/llvm_config.mk])
6242 # Mono.Native Support
6243 # -------------------
6244 # Mono.Native is the new name for both System.Native and System.Security.Cryptography.Apple.
6245 # It is built as a stand-alone shared library and not bundled with the runtime because we
6246 # may need to build two different versions of it.
6248 # Starting with macOS 10.12+ and iOS 10+, Apple introduced a new Unified API for some of the
6249 # crypto primitives that we're using as part of System.Security.Cryptography.Apple.
6251 # On Desktop, we can check at runtime whether the OS version is recent enough and switch
6252 # implementation accordingly.  We build a single `libmono-native` shared library.
6254 # However, on Mobile we cannot have any undefined symbols as this would break Bitcode.
6256 # During the mobile build, we are called with `CFLAGS` containing an explicit minium version flag,
6257 # which is eiter `-mmacosx-version-min=`, `-mios-simulator-version-min=` or `-miphoneos-version-min=`
6258 # depending on platform.
6260 # We build two versions of the shared library:
6261 # - `libmono-native-compat` is built with whichever minimum version is passed to us via `CFLAGS`.
6262 # - `libmono-native-unifed` is built with the minimum version set to macOS 10.12+ / iOS 10+.
6264 # For testing purpuses, there is a function called `mono_native_get_platform_type ()`
6265 # (see mono/native/mono-native-platform.c), which returns a `MonoNativePlatformType` enum value.
6266 # There is also `Mono.MonoNativePlatform.GetPlatformType ()` (see mcs/class/corlib/Test/Mono/MonoNativePlatform.cs).
6268 # This can be called by automated tests both to ensure that the library has been correctly installed and also
6269 # to verify that it's the correct version of it.
6272 AC_MSG_CHECKING([Mono.Native support])
6273 sed_version_pattern='[[0-9]]\{1,2\}\(\.[[0-9]]\{1,2\}\)'
6274 if test x$disable_mono_native = xyes; then
6275         mono_native=no
6276 elif test x$target_osx = xyes; then
6277         MONO_NATIVE_CC=$CC
6278         MONO_NATIVE_CXX=$CXX
6279         MONO_NATIVE_CCASFLAGS=$CCASFLAGS
6280         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6281         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6282         MONO_NATIVE_CFLAGS=$CFLAGS
6283         MONO_NATIVE_LDFLAGS=$LDFLAGS
6285         mono_native=yes
6286         MONO_NATIVE_PLATFORM=macos
6287         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_MACOS"
6289         if test x$enable_gss = xyes; then
6290                 MONO_NATIVE_LDFLAGS="$MONO_NATIVE_LDFLAGS -framework GSS"
6291         fi
6293         AC_MONO_APPLE_AVAILABLE(mono_native_compat, [whether we need the compatibility layer],
6294                 [!(MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_12)])
6296         if test x$mono_native_compat = xyes; then
6297                 mono_native_compat=yes
6298                 mono_native_text="Mac OSX (compat + unified v10.12)"
6299                 MONO_NATIVE_COMPAT_CCASFLAGS=$MONO_NATIVE_CCASFLAGS
6300                 MONO_NATIVE_COMPAT_CPPFLAGS=$MONO_NATIVE_CPPFLAGS
6301                 MONO_NATIVE_COMPAT_CXXFLAGS=$MONO_NATIVE_CXXFLAGS
6302                 MONO_NATIVE_COMPAT_CFLAGS=$MONO_NATIVE_CFLAGS
6303                 MONO_NATIVE_COMPAT_LDFLAGS=$MONO_NATIVE_LDFLAGS
6305                 sed_remove_mac_version_pattern="s/-mmacosx-version-min=$sed_version_pattern//g"
6306                 MONO_NATIVE_UNIFIED_CCASFLAGS="`echo $CCASFLAGS | sed -e $sed_remove_mac_version_pattern` -mmacosx-version-min=10.12"
6307                 MONO_NATIVE_UNIFIED_CPPFLAGS="`echo $CPPFLAGS | sed -e $sed_remove_mac_version_pattern` -mmacosx-version-min=10.12"
6308                 MONO_NATIVE_UNIFIED_CXXFLAGS="`echo $CXXFLAGS | sed -e $sed_remove_mac_version_pattern` -mmacosx-version-min=10.12"
6309                 MONO_NATIVE_UNIFIED_CFLAGS="`echo $CFLAGS | sed -e $sed_remove_mac_version_pattern` -mmacosx-version-min=10.12"
6310                 MONO_NATIVE_UNIFIED_LDFLAGS="`echo $LDFLAGS | sed -e $sed_remove_mac_version_pattern` -mmacosx-version-min=10.12"
6311         else
6312                 mono_native_compat=no
6313                 mono_native_text="Mac OSX"
6314         fi
6315 elif test x$mono_native_platform_ios = xyes; then
6316         AC_MONO_APPLE_TARGET(TARGET_OS_SIMULATOR, [mono_native_ios_sim=yes], [mono_native_ios_sim=no])
6318         AC_MONO_APPLE_TARGET(TARGET_OS_IOS, [
6319                 if test x$mono_native_ios_sim = xyes; then
6320                         mono_native_ios_target=ios-simulator
6321                         mono_native_text="iOS Simulator"
6322                         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_IPHONE | MONO_NATIVE_PLATFORM_TYPE_SIMULATOR"
6323                 else
6324                         mono_native_ios_target=iphoneos
6325                         mono_native_text="iOS Device"
6326                         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_IPHONE | MONO_NATIVE_PLATFORM_TYPE_DEVICE"
6327                 fi
6328                 mono_native_unified_version="10.0"
6329                 mono_native_compat_check="__IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_10_0"
6330         ], [
6331                 AC_MONO_APPLE_TARGET(TARGET_OS_TV, [
6332                         if test x$mono_native_ios_sim = xyes; then
6333                                 mono_native_ios_target=tvos-simulator
6334                                 mono_native_text="AppleTV Simulator"
6335                                 MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_TV | MONO_NATIVE_PLATFORM_TYPE_SIMULATOR"
6336                         else
6337                                 mono_native_ios_target=tvos
6338                                 mono_native_text="AppleTV Device"
6339                                 MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_TV | MONO_NATIVE_PLATFORM_TYPE_DEVICE"
6340                         fi
6341                         mono_native_unified_version="10.0"
6342                         mono_native_compat_check="__TV_OS_VERSION_MIN_REQUIRED >= __TVOS_10_0"
6343                 ], [
6344                         AC_MONO_APPLE_TARGET(TARGET_OS_WATCH, [
6345                                 if test x$mono_native_ios_sim = xyes; then
6346                                         mono_native_ios_target=watchos-simulator
6347                                         mono_native_text="Apple Watch Simulator"
6348                                         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_WATCH | MONO_NATIVE_PLATFORM_TYPE_SIMULATOR"
6349                                 else
6350                                         mono_native_ios_target=watchos
6351                                         mono_native_text="Apple Watch Device"
6352                                         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_IOS | MONO_NATIVE_PLATFORM_TYPE_WATCH | MONO_NATIVE_PLATFORM_TYPE_DEVICE"
6353                                 fi
6354                                 mono_native_unified_version="5.0"
6355                                 mono_native_compat_check="__WATCH_OS_VERSION_MIN_REQUIRED >= __WATCHOS_5_0"
6356                         ], [
6357                                 AC_MSG_ERROR([Unknown iOS Target])
6358                         ])
6359                 ])
6360         ])
6362         AC_MONO_APPLE_AVAILABLE(mono_native_compat, [whether we need the compatibility layer], [!($mono_native_compat_check)])
6364         if test x$with_bitcode = xyes; then
6365                 mono_native_ldflags="-framework CoreFoundation -framework Foundation -no-undefined -fatal_warnings"
6366                 MONO_NATIVE_LIBADD="../mini/$LIBMONO_LA"
6367         else
6368                 mono_native_ldflags="-framework CoreFoundation -framework Foundation -fatal_warnings"
6369         fi
6371         if test x$enable_gss = xyes; then
6372                 mono_native_ldflags="$mono_native_ldflags -framework GSS"
6373         fi
6375         MONO_NATIVE_CC=$CC
6376         MONO_NATIVE_CXX=$CXX
6377         MONO_NATIVE_CCASFLAGS=$CCASFLAGS
6378         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6379         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6380         MONO_NATIVE_CFLAGS=$CFLAGS
6381         MONO_NATIVE_LDFLAGS="$LDFLAGS $mono_native_ldflags"
6383         if test x$mono_native_compat = xyes; then
6384                 mono_native_text="$mono_native_text (compat + unified v$mono_native_unified_version)"
6385                 MONO_NATIVE_COMPAT_CCASFLAGS=$MONO_NATIVE_CCASFLAGS
6386                 MONO_NATIVE_COMPAT_CPPFLAGS=$MONO_NATIVE_CPPFLAGS
6387                 MONO_NATIVE_COMPAT_CXXFLAGS=$MONO_NATIVE_CXXFLAGS
6388                 MONO_NATIVE_COMPAT_CFLAGS=$MONO_NATIVE_CFLAGS
6389                 MONO_NATIVE_COMPAT_LDFLAGS=$MONO_NATIVE_LDFLAGS
6391                 sed_remove_ios_version_pattern="s/-m\(.*\)-version-min=$sed_version_pattern//g"
6392                 MONO_NATIVE_UNIFIED_CCASFLAGS="`echo $CCASFLAGS | sed -e $sed_remove_ios_version_pattern` -m$mono_native_ios_target-version-min=$mono_native_unified_version"
6393                 MONO_NATIVE_UNIFIED_CPPFLAGS="`echo $CPPFLAGS | sed -e $sed_remove_ios_version_pattern` -m$mono_native_ios_target-version-min=$mono_native_unified_version"
6394                 MONO_NATIVE_UNIFIED_CXXFLAGS="`echo $CXXFLAGS | sed -e $sed_remove_ios_version_pattern` -m$mono_native_ios_target-version-min=$mono_native_unified_version"
6395                 MONO_NATIVE_UNIFIED_CFLAGS="`echo $CFLAGS | sed -e $sed_remove_ios_version_pattern` -m$mono_native_ios_target-version-min=$mono_native_unified_version"
6396                 MONO_NATIVE_UNIFIED_LDFLAGS="`echo $LDFLAGS $mono_native_ldflags | sed -e $sed_remove_ios_version_pattern` -m$mono_native_ios_target-version-min=$mono_native_unified_version"
6397         fi
6399         mono_native=yes
6400         MONO_NATIVE_PLATFORM=ios
6401 elif test x$host_linux = xyes; then
6402         mono_native_text="Linux"
6403         MONO_NATIVE_CC=$CC
6404         MONO_NATIVE_CXX=$CXX
6405         MONO_NATIVE_CCASFLAGS=$CCASFLAGS
6406         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6407         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6408         MONO_NATIVE_CFLAGS=$CFLAGS
6409         MONO_NATIVE_LDFLAGS=$LDFLAGS
6411         mono_native=yes
6412         mono_native_compat=no
6413         MONO_NATIVE_PLATFORM=linux
6415         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_LINUX"
6416 elif test x$target_wasm = xyes; then
6417         mono_native_text="wasm"
6418         MONO_NATIVE_CC=$CC
6419         MONO_NATIVE_CXX=$CXX
6420         MONO_NATIVE_CCASFLAGS=$CCASFLAGS
6421         # The system.native code uses _WASM_ to check for wasm
6422         MONO_NATIVE_CPPFLAGS="$CPPFLAGS -D_WASM_"
6423         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6424         MONO_NATIVE_CFLAGS=$CFLAGS
6425         MONO_NATIVE_LDFLAGS=$LDFLAGS
6427         mono_native=yes
6428         mono_native_compat=no
6429         MONO_NATIVE_PLATFORM=linux
6431         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_LINUX"
6432 elif case $host_os in aix*|os400*) true;; *) false;; esac; then
6433         mono_native_text="AIX"
6434         MONO_NATIVE_CC=$CC
6435         MONO_NATIVE_CXX=$CXX
6436         MONO_NATIVE_CCASFLAGS=$CCASFLAGS
6437         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6438         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6439         MONO_NATIVE_CFLAGS=$CFLAGS
6440         dnl nosymbolic- is a hack in case -G for linking is used, as -G seems
6441         dnl to change the way unresolved symbols work on library load in an
6442         dnl incompatible manner. (as references to runtime functions are
6443         dnl resolved later) Default params otherwise are that, so seems OK.
6444         dnl Likewise, we don't seem to need to cover the entire runtime with
6445         dnl it either, on both AIX and PASE. -brtl from -G does seem to spew
6446         dnl Big Scary TOC Warnings (tm) from the linker, but it doesn't seem
6447         dnl problematic with gcc's -mminimal-toc.
6448         dnl ----
6449         dnl flock in AIX exists in libbsd (not the same as freedesktop.org
6450         dnl libbsd) which Mono.Native needs.
6451         dnl Because of the way that the library is built by default, unresolved
6452         dnl references are kept and resolved at runtime. Often, the dependency
6453         dnl chain means libbsd is loaded anyways, but not necessarily. It's
6454         dnl better to explicitly link it, even though it has it shadows libc's
6455         dnl ioctl with its own. (As for the other unresolved imports, those
6456         dnl should be provided by the Mono runtime loaded.)
6457         MONO_NATIVE_LDFLAGS="$LDFLAGS -lbsd -Wl,-bnosymbolic-"
6459         mono_native=yes
6460         mono_native_compat=no
6461         MONO_NATIVE_PLATFORM=aix
6463         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_AIX"
6464 elif case $host_os in freebsd*) true;; *) false;; esac; then
6465         mono_native_text="FreeBSD"
6466         MONO_NATIVE_CC=$CC
6467         MONO_NATIVE_CXX=$CXX
6468         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6469         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6470         MONO_NATIVE_CFLAGS=$CFLAGS
6471         MONO_NATIVE_LDFLAGS=$LDFLAGS
6473         mono_native=yes
6474         mono_native_compat=no
6475         MONO_NATIVE_PLATFORM=freebsd
6476         AC_MSG_CHECKING([Mono.Native support])
6477         AC_MSG_RESULT(freebsd)
6479         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_FREEBSD"
6480 elif test x$platform_android = xyes; then
6481         mono_native_text="Android"
6482         MONO_NATIVE_CC=$CC
6483         MONO_NATIVE_CXX=$CXX
6484         MONO_NATIVE_CPPFLAGS=$CPPFLAGS
6485         MONO_NATIVE_CXXFLAGS=$CXXFLAGS
6486         MONO_NATIVE_CFLAGS=$CFLAGS
6487         MONO_NATIVE_LDFLAGS=$LDFLAGS
6488         MONO_NATIVE_LIBADD="../mini/$LIBMONO_LA"
6490         mono_native=yes
6491         mono_native_compat=no
6492         MONO_NATIVE_PLATFORM=android
6494         MONO_NATIVE_PLATFORM_TYPE="MONO_NATIVE_PLATFORM_TYPE_ANDROID"
6495 else
6496         mono_native=no
6497         mono_native_text="no"
6500 AC_MSG_RESULT($mono_native_text)
6502 if test x$mono_native_compat = xyes; then
6503         MONO_NATIVE_LIBRARY_NAME=libmono-native-compat
6504 else
6505         MONO_NATIVE_LIBRARY_NAME=libmono-native
6508 AC_SUBST(MONO_NATIVE_PLATFORM)
6509 AC_SUBST(MONO_NATIVE_CC)
6510 AC_SUBST(MONO_NATIVE_CXX)
6511 AC_SUBST(MONO_NATIVE_CCASFLAGS)
6512 AC_SUBST(MONO_NATIVE_COMPAT_CCASFLAGS)
6513 AC_SUBST(MONO_NATIVE_UNIFIED_CCASFLAGS)
6514 AC_SUBST(MONO_NATIVE_CPPFLAGS)
6515 AC_SUBST(MONO_NATIVE_COMPAT_CPPFLAGS)
6516 AC_SUBST(MONO_NATIVE_UNIFIED_CPPFLAGS)
6517 AC_SUBST(MONO_NATIVE_CXXFLAGS)
6518 AC_SUBST(MONO_NATIVE_COMPAT_CXXFLAGS)
6519 AC_SUBST(MONO_NATIVE_UNIFIED_CXXFLAGS)
6520 AC_SUBST(MONO_NATIVE_CFLAGS)
6521 AC_SUBST(MONO_NATIVE_COMPAT_CFLAGS)
6522 AC_SUBST(MONO_NATIVE_UNIFIED_CFLAGS)
6523 AC_SUBST(MONO_NATIVE_LDFLAGS)
6524 AC_SUBST(MONO_NATIVE_COMPAT_LDFLAGS)
6525 AC_SUBST(MONO_NATIVE_UNIFIED_LDFLAGS)
6526 AC_SUBST(MONO_NATIVE_LIBRARY_NAME)
6527 AC_SUBST(MONO_NATIVE_LIBADD)
6529 AM_CONDITIONAL(MONO_NATIVE, test x$mono_native = xyes)
6530 AM_CONDITIONAL(MONO_NATIVE_COMPAT, test x$mono_native_compat = xyes)
6531 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_MACOS, test x$MONO_NATIVE_PLATFORM = xmacos)
6532 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_IOS, test x$MONO_NATIVE_PLATFORM = xios)
6533 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_LINUX, test x$MONO_NATIVE_PLATFORM = xlinux)
6534 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_AIX, test x$MONO_NATIVE_PLATFORM = xaix)
6535 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_ANDROID, test x$MONO_NATIVE_PLATFORM = xandroid)
6536 AM_CONDITIONAL(MONO_NATIVE_PLATFORM_FREEBSD, test x$MONO_NATIVE_PLATFORM = xfreebsd)
6538 MONO_NATIVE_PLATFORM_TYPE_COMPAT="$MONO_NATIVE_PLATFORM_TYPE | MONO_NATIVE_PLATFORM_TYPE_COMPAT"
6539 MONO_NATIVE_PLATFORM_TYPE_UNIFIED="$MONO_NATIVE_PLATFORM_TYPE | MONO_NATIVE_PLATFORM_TYPE_UNIFIED"
6540 AC_SUBST(MONO_NATIVE_PLATFORM_TYPE)
6541 AC_SUBST(MONO_NATIVE_PLATFORM_TYPE_COMPAT)
6542 AC_SUBST(MONO_NATIVE_PLATFORM_TYPE_UNIFIED)
6544 ### C++ Linker selection
6546 # We have to lie to autotools, sometimes.
6548 # If we're building with llvm compiled into Mono, set MONO_CXXLD to CXX,
6549 # otherwise to CC.  We want C linking even if we're compiling with C++ enabled
6550 # because we do not want to link inthe C++ runtime library (-lstdc++ or -lc++),
6551 # except if we're linking with LLVM which relies on it.
6553 # Explanation of the hack:
6555 # According to
6556 # https://www.gnu.org/software/automake/manual/html_node/How-the-Linker-is-Chosen.html,
6557 # automake chooses the linker that it used to compile a target based on the
6558 # _SOURCES for that target.  If the target is comprised of only C code, it
6559 # chooses the C linker (on Linux and OSX this is just gcc or clang called with
6560 # linker arguments and a -o).  If the target _SOURCES include at least one C++ file, 
6561 # then automake chooses the C++ linker (usually g++ or clang++ called with linker arguments and -o).
6563 # The problem for Mono is that we don't want the C++ runtime library (libstdc++
6564 # or libc++) linked in - even when Mono is written in C++, we take care not to
6565 # require the runtime library.  As a result, we don't want g++ or clang++ to do
6566 # the linking.  On the other hand if LLVM is enabled, then we _must_ use the
6567 # C++ linker - LLVM doesn't have the same restrictions.
6569 # So the trick is we set MONO_CXXLD here to $CXX or $CC and in
6570 #  mono/mini/Makefile.am.in we have CCLD=$MONO_CXXLD and CXXLD=$MONO_CXXLD which bypasses
6571 #  automake's autodetection and lets us use the linker that we want.
6573 if test "x$enable_llvm_runtime" = "xyes"; then
6574         AC_SUBST(MONO_CXXLD, [$CXX])
6575 else
6576         AC_SUBST(MONO_CXXLD, [$CC])
6579 ### Set -Werror options
6581 # Anything involving -Werror must be done late because autoconf depends on compiling with warnings to be success.
6583 if test x"$GCC" = xyes; then
6585         if test "x$with_jemalloc" != "xyes"; then
6587                 # incompatible-pointer-types requires gcc circa 5.x
6589                 ORIG_CFLAGS=$CFLAGS
6590                 CFLAGS="$CFLAGS -Wincompatible-pointer-types -Werror"
6591                 AC_MSG_CHECKING(for -Wincompatible-pointer-types option to gcc)
6592                 AC_TRY_COMPILE([],[
6593                 ], [
6594                         AC_MSG_RESULT(yes)
6595                         CFLAGS="$ORIG_CFLAGS -Werror=incompatible-pointer-types"
6596                 ], [
6597                         AC_MSG_RESULT(no)
6598                         CFLAGS=$ORIG_CFLAGS
6599                 ])
6601                 CFLAGS="$CFLAGS -Werror=return-type"
6602         fi
6604         # Implicit function declarations are not 64 bit safe
6605         # Do this late, since this causes lots of configure tests to fail
6606         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
6607         # jay has a lot of implicit declarations
6608         JAY_CFLAGS="-Wno-implicit-function-declaration"
6611 # zlib/configure checks if this program compiles and if so
6612 # defines _LARGEFILE64_SOURCE on the compiler command line (not config.h).
6614 AC_MSG_CHECKING([for large file support])
6615 AC_COMPILE_IFELSE(
6616         [
6617                 #include <sys/types.h>
6618                 off64_t dummy = 0;
6619         ], [
6620                 AC_MSG_RESULT(yes)
6621                 # FIXME The ramifications of _LARGEFILE64_SOURCE are not understood.
6622                 # ZLIB_CFLAGS="$ZLIB_CFLAGS -D_LARGEFILE64_SOURCE=1"
6623         ], [
6624                 AC_MSG_RESULT(no)
6625         ])
6627 AC_SUBST(CFLAGS)
6628 AC_SUBST(CPPFLAGS)
6629 AC_SUBST(LDFLAGS)
6630 AC_SUBST(ZLIB_CFLAGS)
6632 # Update all submodules recursively to ensure everything is checked out
6633 if test "x$with_core" != "xonly"; then
6634         (cd $srcdir && scripts/update_submodules.sh)
6637 AC_OUTPUT([
6638 Makefile
6639 mono-uninstalled.pc
6640 acceptance-tests/Makefile
6641 llvm/Makefile
6642 scripts/mono-find-provides
6643 scripts/mono-find-requires
6644 mk/Makefile
6645 mono/Makefile
6646 mono/btls/Makefile
6647 mono/native/Makefile
6648 mono/utils/Makefile
6649 mono/utils/jemalloc/Makefile
6650 mono/metadata/Makefile
6651 mono/dis/Makefile
6652 mono/cil/Makefile
6653 mono/arch/Makefile
6654 mono/arch/x86/Makefile
6655 mono/arch/amd64/Makefile
6656 mono/arch/ppc/Makefile
6657 mono/arch/sparc/Makefile
6658 mono/arch/s390x/Makefile
6659 mono/arch/arm/Makefile
6660 mono/arch/arm64/Makefile
6661 mono/arch/mips/Makefile
6662 mono/arch/riscv/Makefile
6663 mono/sgen/Makefile
6664 mono/native/platform-type.c
6665 mono/native/platform-type-compat.c
6666 mono/native/platform-type-unified.c
6667 mono/tests/Makefile
6668 mono/tests/assembly-load-reference/Makefile
6669 mono/tests/tests-config
6670 mono/tests/gc-descriptors/Makefile
6671 mono/tests/testing_gac/Makefile
6672 mono/tests/fullaot-mixed/Makefile
6673 mono/tests/llvmonly-mixed/Makefile
6674 mono/unit-tests/Makefile
6675 mono/benchmark/Makefile
6676 mono/mini/Makefile
6677 mono/profiler/Makefile
6678 mono/eglib/Makefile
6679 mono/eglib/eglib-config.h
6680 mono/eglib/test/Makefile
6681 m4/Makefile
6682 ikvm-native/Makefile
6683 scripts/Makefile
6684 man/Makefile
6685 docs/Makefile
6686 data/Makefile
6687 data/net_2_0/Makefile
6688 data/net_4_0/Makefile
6689 data/net_4_5/Makefile
6690 data/net_2_0/Browsers/Makefile
6691 data/net_4_0/Browsers/Makefile
6692 data/net_4_5/Browsers/Makefile
6693 data/mint.pc
6694 data/mono-2.pc
6695 data/monosgen-2.pc
6696 data/mono.pc
6697 data/mono-cairo.pc
6698 data/mono-options.pc
6699 data/mono-lineeditor.pc
6700 data/monodoc.pc
6701 data/dotnet.pc
6702 data/dotnet35.pc
6703 data/wcf.pc
6704 data/cecil.pc
6705 data/system.web.extensions_1.0.pc
6706 data/system.web.extensions.design_1.0.pc
6707 data/system.web.mvc.pc
6708 data/system.web.mvc2.pc
6709 data/system.web.mvc3.pc
6710 data/aspnetwebstack.pc
6711 data/reactive.pc
6712 samples/Makefile
6713 support/Makefile
6714 data/config
6715 tools/Makefile
6716 tools/locale-builder/Makefile
6717 tools/sgen/Makefile
6718 tools/pedump/Makefile
6719 runtime/Makefile
6720 msvc/Makefile
6721 po/Makefile
6724 if test x$host_win32 = xyes; then
6725    # Get rid of 'cyg' prefixes in library names
6726    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
6727    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
6728    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
6729    # executable doesn't work...
6730    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
6733 if test x$host_darwin = xyes; then
6734    # This doesn't seem to be required and it slows down parallel builds
6735    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
6738 force_enable_compiler_server=no;
6740 AC_MSG_CHECKING([compiler server])
6741 AC_ARG_WITH(compiler-server, [  --with-compiler-server=yes,no,default,force      Enables or disables compiler server],[
6742    if test x$withval = xyes; then
6743        enable_compiler_server=yes;
6744    # force will bypass any automatic disables to allow you to test the compiler server
6745    #  in scenarios where it is disabled
6746    elif test x$withval = xforce; then
6747        enable_compiler_server=yes;
6748        force_enable_compiler_server=yes;
6749    elif test x$withval = xno; then
6750        enable_compiler_server=no;
6751    elif test x$withval = xdefault; then
6752        enable_compiler_server=yes;
6753    else
6754        AC_MSG_ERROR([You must supply one of "yes", "no", "default" or "force" to the --with-compiler-server option])
6755    fi
6756 ],[enable_compiler_server=yes])
6758 AC_MSG_RESULT($enable_compiler_server)
6760 if test x$enable_compiler_server = xyes; then
6761    if test x$force_enable_compiler_server = xyes; then
6762        AC_MSG_WARN([forcing compiler server to stay enabled])
6763    elif test x$host_darwin = xyes; then
6764        AC_MSG_WARN([compiler server temporarily disabled on darwin])
6765        enable_compiler_server=no;
6766    elif test x$csc_compiler = xmcs; then
6767        AC_MSG_WARN([mcs does not support the compiler server])
6768        enable_compiler_server=no;
6769    fi
6773   case $prefix in
6774   NONE) prefix=$ac_default_prefix ;;
6775   esac
6776   case $exec_prefix in
6777   NONE) exec_prefix='${prefix}' ;;
6778   esac
6780   #
6781   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
6782   # any existing config.make.  This allows people to share the same source tree
6783   # with different build directories, one native and one cross
6784   #
6785   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
6787     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
6789     echo "prefix=$prefix" > $mcs_topdir/build/config.make
6790     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
6791     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
6792     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
6793     echo "mono_build_root=$mono_build_root" >> $mcs_topdir/build/config.make
6794     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
6795     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
6796     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
6797     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
6798     echo "VERSION = $VERSION" >> $mcs_topdir/build/config.make
6800     case $INSTALL in
6801     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
6802     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
6803     esac
6805     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
6807     export VERSION
6808     [myver=$($AWK 'BEGIN {
6809       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
6810       if(length(vsplit [1]) > 4) {
6811         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
6812       }
6813       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
6814     }')]
6816     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
6817     echo "MONO_CORLIB_VERSION = $MONO_CORLIB_VERSION" >> $mcs_topdir/build/config.make
6819     if test x$host_darwin = xyes; then
6820       echo "BUILD_PLATFORM = macos" >> $mcs_topdir/build/config.make
6821       echo "HOST_PLATFORM ?= macos" >> $mcs_topdir/build/config.make
6822       echo "XTEST_PLATFORM ?= osx" >> $mcs_topdir/build/config.make
6823     elif test x$host_win32 = xyes; then
6824       echo "BUILD_PLATFORM = win32" >> $mcs_topdir/build/config.make
6825       echo "HOST_PLATFORM ?= win32" >> $mcs_topdir/build/config.make
6826       echo "XTEST_PLATFORM ?= windows" >> $mcs_topdir/build/config.make
6827     elif test x$host_linux = xyes; then
6828       echo "BUILD_PLATFORM = linux" >> $mcs_topdir/build/config.make
6829       echo "HOST_PLATFORM ?= linux" >> $mcs_topdir/build/config.make
6830       echo "XTEST_PLATFORM ?= linux" >> $mcs_topdir/build/config.make
6831     else
6832       echo "BUILD_PLATFORM = unix" >> $mcs_topdir/build/config.make
6833       echo "HOST_PLATFORM ?= unix" >> $mcs_topdir/build/config.make
6834       echo "XTEST_PLATFORM ?= unix" >> $mcs_topdir/build/config.make
6835     fi
6837     echo "PLATFORM_AOT_PREFIX = $PLATFORM_AOT_PREFIX" >> $mcs_topdir/build/config.make
6838     if test "x$PLATFORM_AOT_SUFFIX" != "x"; then
6839       echo "PLATFORM_AOT_SUFFIX = $PLATFORM_AOT_SUFFIX" >> $mcs_topdir/build/config.make
6840     fi
6842         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
6843            enable_system_aot=yes
6844         fi
6846     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
6847       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
6848     fi
6850     if test x$DISABLE_MCS_DOCS = xyes; then
6851       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
6852     fi
6854     if test x$has_extension_module != xno; then
6855         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
6856     fi
6857     
6858     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
6859     
6860     if test "x$test_bcl_opt" = "xyes"; then    
6861       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
6862     fi
6864     echo "STANDALONE_CSC_LOCATION=$CSC_LOCATION" >> $srcdir/$mcsdir/build/config.make
6865     echo "SERVER_CSC_LOCATION?=$CSC_LOCATION" >> $srcdir/$mcsdir/build/config.make
6866     echo "VBCS_LOCATION?=$VBCS_LOCATION" >> $srcdir/$mcsdir/build/config.make
6868     if test $csc_compiler = mcs; then
6869       echo "MCS_MODE = 1" >> $srcdir/$mcsdir/build/config.make
6870     fi
6872     if test "x$AOT_BUILD_FLAGS" != "x" ; then
6873       echo "AOT_RUN_FLAGS=$AOT_RUN_FLAGS" >> $srcdir/$mcsdir/build/config.make
6874       echo "AOT_BUILD_ATTRS=$AOT_BUILD_ATTRS" >> $srcdir/$mcsdir/build/config.make
6876       if test "x$internal_llvm" != "xno" && test "x$enable_llvm_msvc_only" = "xno"; then
6877         echo "AOT_BUILD_FLAGS=$AOT_BUILD_FLAGS,$MONO_LLVM_PATH_OPTION" >> $srcdir/$mcsdir/build/config.make
6878       else
6879         echo "AOT_BUILD_FLAGS=$AOT_BUILD_FLAGS" >> $srcdir/$mcsdir/build/config.make
6880       fi
6881     fi
6883     if test "x$AOT_MODE" != "x" ; then
6884       echo "AOT_MODE=$AOT_MODE" >> $srcdir/$mcsdir/build/config.make
6885     fi
6887     if test "x$enable_btls" = "xyes"; then
6888       echo "HAVE_BTLS=1" >> $srcdir/$mcsdir/build/config.make
6889     fi
6891     if test "x$mono_native" = "xyes"; then
6892       echo "MONO_NATIVE_SUPPORTED=true" >> $srcdir/$mcsdir/build/config.make
6893     else
6894       echo "MONO_NATIVE_SUPPORTED=false" >> $srcdir/$mcsdir/build/config.make
6895     fi
6897     if test x$mono_native_compat = xyes; then
6898       echo "MONO_NATIVE_USING_COMPAT=true" >> $srcdir/$mcsdir/build/config.make
6899     else
6900       echo "MONO_NATIVE_USING_COMPAT=false" >> $srcdir/$mcsdir/build/config.make
6901     fi
6903     echo "MONO_NATIVE_PLATFORM_TYPE=$MONO_NATIVE_PLATFORM_TYPE" >> $srcdir/$mcsdir/build/config.make
6904     echo "MONO_NATIVE_PLATFORM=$MONO_NATIVE_PLATFORM" >> $srcdir/$mcsdir/build/config.make
6905     if test x$enable_compiler_server = xyes; then
6906       echo "ENABLE_COMPILER_SERVER?=1" >> $srcdir/$mcsdir/build/config.make
6907     else
6908       echo "ENABLE_COMPILER_SERVER?=0" >> $srcdir/$mcsdir/build/config.make
6909     fi
6910     echo "COMPILER_SERVER_PIPENAME?=monomake" >> $srcdir/$mcsdir/build/config.make
6912   fi
6916 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
6918 btls_platform_string=
6919 if test x$enable_btls = xyes; then
6920         if test x$btls_android = xyes; then
6921                 btls_platform_string=" (android:$BTLS_PLATFORM)"
6922         else
6923                 btls_platform_string=" ($BTLS_PLATFORM)"
6924         fi
6927 thread_suspend_msg=
6928 if test x$buildsgen = xyes; then
6929         if test x$enable_cooperative_suspend != xno; then
6930                 thread_suspend_msg="Suspend:       Cooperative"
6931         elif test x$enable_hybrid_suspend != xno; then
6932                 thread_suspend_msg="Suspend:       Hybrid"
6933         else
6934                 thread_suspend_msg="Suspend:       Preemptive"
6935         fi
6938 if test "x$with_core" == "xonly"; then
6939   echo "RID = $RID" >> netcore/config.make
6940   echo "COREARCH = $COREARCH" >> netcore/config.make
6941   echo "CORETARGETS = $CORETARGETS" >> netcore/config.make
6942   echo "MONO_CORLIB_VERSION = $MONO_CORLIB_VERSION" >> netcore/config.make
6944   if test x$host_darwin = xyes; then
6945     echo "HOST_PLATFORM ?= macos" >> netcore/config.make
6946   elif test x$host_win32 = xyes; then
6947     echo "HOST_PLATFORM ?= win32" >> netcore/config.make
6948   elif test x$host_linux = xyes; then
6949     echo "HOST_PLATFORM ?= linux" >> netcore/config.make
6950   else
6951     echo "HOST_PLATFORM ?= unix" >> netcore/config.make
6952   fi
6955         
6956 echo "
6957         mcs source:    $mcsdir
6958         C# Compiler:   $csc_compiler
6959         CompilerServer:$enable_compiler_server
6961    Engine:
6962         Host:          $host
6963         Target:        $target
6964         GC:            $gc_msg 
6965         $thread_suspend_msg
6966         TLS:           $with_tls
6967         SIGALTSTACK:   $with_sigaltstack
6968         Engine:        $jit_status
6969         BigArrays:     $enable_big_arrays
6970         DTrace:        $enable_dtrace
6971         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm, built in-tree: $internal_llvm, assertions: $enable_llvm_asserts, msvc only: $enable_llvm_msvc_only)
6972         Spectre:       $spectre_mitigation_status
6973         Mono.Native:   $mono_native_text
6975    Libraries:
6976         .NET 4.x:        $with_profile4_x
6977         Xamarin.Android: $with_monodroid
6978         Xamarin.iOS:     $with_monotouch
6979         Xamarin.WatchOS: $with_monotouch_watch
6980         Xamarin.TVOS:    $with_monotouch_tv
6981         Xamarin.Mac:     $with_xammac
6982         Windows AOT:     $with_winaot
6983         Orbis:           $with_orbis
6984         Unreal:          $with_unreal
6985         WebAssembly:     $with_wasm
6986         Test profiles:   AOT Full ($with_testing_aot_full), AOT Hybrid ($with_testing_aot_hybrid), AOT Full Interp ($with_testing_aot_full_interp), Windows Full AOT Interp ($with_testing_winaot_interp)
6987         JNI support:     $jdk_headers_found
6988         libgdiplus:      $libgdiplus_msg
6989         zlib:            $zlib_msg
6990         BTLS:            $enable_btls$btls_platform_string
6991         jemalloc:        $with_jemalloc (always use: $with_jemalloc_always)
6992         crash reporting: $crash_reporting (private crashes: $with_crash_privacy)
6993         .NET Core:       $with_core
6994         $disabled
6996 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
6997    AC_MSG_WARN([Turning off static Mono is a risk, you might run into unexpected bugs])