4 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
5 # The extra brackets are to foil regex-based scans.
6 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
8 AM_CONFIG_HEADER(config.h)
9 AM_INIT_AUTOMAKE(mono,2.7)
17 # In case of cygwin, override LN_S, irrespective of what it determines.
18 # The build uses cygwin, but the actual runtime doesn't.
20 *cygwin* ) LN_S='cp -p';;
33 if test -d $srcdir/libgc ; then
39 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
40 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
41 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
42 CFLAGS_FOR_LIBGC=$CFLAGS
43 CPPFLAGS_FOR_EGLIB=$CPPFLAGS
44 CFLAGS_FOR_EGLIB=$CFLAGS
47 # These are the flags that need to be stored in the mono.pc file for
48 # compiling code that will embed Mono
52 AC_SUBST(libmono_cflags)
53 AC_SUBST(libmono_ldflags)
55 # Variable to have relocatable .pc files (lib, or lib64)
56 reloc_libdir=`basename ${libdir}`
57 AC_SUBST(reloc_libdir)
59 dnl if linker handles the version script
62 # Set to yes if Unix sockets cannot be created in an anonymous namespace
65 # Thread configuration inspired by sleepycat's db
66 AC_MSG_CHECKING([host platform characteristics])
73 # https://bugzilla.novell.com/show_bug.cgi?id=504411
81 *-*-mingw*|*-*-cygwin*)
82 AC_DEFINE(HOST_WIN32,1,[Host Platform is Win32])
83 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
84 AC_DEFINE(PLATFORM_NO_SYMLINKS,1,[This platform does not support symlinks])
86 if test "x$cross_compiling" = "xno"; then
88 AC_DEFINE(TARGET_WIN32,1,[Target OS is Win32])
89 CC="gcc -mno-cygwin -g"
90 CXX="g++ -mno-cygwin -g"
91 # So libgc configure gets -mno-cygwin
96 # Windows 2000 is required that includes Internet Explorer 5.01
97 CPPFLAGS="$CPPFLAGS -DWINVER=0x0500 -D_WIN32_WINNT=0x0500 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
98 LDFLAGS="$LDFLAGS -lmswsock"
99 libmono_cflags="-mno-cygwin -mms-bitfields -mwindows"
100 libmono_ldflags="-mno-cygwin -mms-bitfields -mwindows"
106 # This forces libgc to use the DllMain based thread registration code on win32
107 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
111 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
112 libmono_cflags="-D_REENTRANT"
113 LDFLAGS="$LDFLAGS -pthread"
114 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
115 libmono_ldflags="-pthread"
118 libgc_threads=pthreads
124 if test "x$PTHREAD_CFLAGS" = "x"; then
125 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
128 CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
129 libmono_cflags="$PTHREAD_CFLAGS"
131 if test "x$PTHREAD_LIBS" = "x"; then
132 LDFLAGS="$LDFLAGS -pthread"
133 libmono_ldflags="-pthread"
135 LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
136 libmono_ldflags="$PTHREAD_LIBS"
138 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
140 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
142 libgc_threads=pthreads
143 # This doesn't seem to work as of 7.0 on amd64
145 # TLS is only partially implemented on -CURRENT (compiler support
146 # but NOT library support)
153 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_FREEBSD_THREADS -DPLATFORM_BSD"
154 libmono_cflags="-D_THREAD_SAFE"
155 LDFLAGS="$LDFLAGS -pthread"
156 libmono_ldflags="-pthread"
158 AC_DEFINE(PTHREAD_POINTER_ID)
160 libgc_threads=pthreads
165 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
166 if test "x$disable_munmap" != "xyes"; then
167 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
169 libmono_cflags="-D_REENTRANT"
170 libmono_ldflags="-lpthread"
172 libgc_threads=pthreads
178 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
179 # +ESdbgasm only valid on bundled cc on RISC
180 # silently ignored for ia64
181 if test $GCC != "yes"; then
182 CFLAGS="$CFLAGS +ESdbgasm"
183 # Arrange for run-time dereferencing of null
184 # pointers to produce a SIGSEGV signal.
185 LDFLAGS="$LDFLAGS -z"
187 CFLAGS="$CFLAGS +ESdbgasm"
188 LDFLAGS="$LDFLAGS -z"
189 libmono_cflags="-D_REENTRANT"
190 libmono_ldflags="-lpthread"
191 libgc_threads=pthreads
197 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
199 libmono_cflags="-D_REENTRANT"
200 libgc_threads=pthreads
201 # This doesn't seem to work on solaris/x86, but the configure test runs
207 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
210 CPPFLAGS="$CPPFLAGS -no-cpp-precomp -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
211 CPPFLAGS="$CPPFLAGS -DGetCurrentProcess=MonoGetCurrentProcess -DGetCurrentThread=MonoGetCurrentThread -DCreateEvent=MonoCreateEvent"
212 libmono_cflags="-D_THREAD_SAFE"
213 LDFLAGS="$LDFLAGS -pthread"
214 libmono_ldflags="-pthread"
216 AC_DEFINE(PTHREAD_POINTER_ID)
217 AC_DEFINE(USE_MACH_SEMA, 1, [...])
218 no_version_script=yes
220 libgc_threads=pthreads
222 if test "x$cross_compiling" = "xyes"; then
223 has_broken_apple_cpp=yes
225 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin10.0.0, but
226 dnl its gcc defaults to 64-bit mode. They have also deprecated the usage of ucontext
227 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
230 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE -mmacosx-version-min=10.5"
231 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_FLAGS"
232 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
233 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
234 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
235 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
236 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
237 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
238 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
243 AC_MSG_WARN([*** Please add $host to configure.in checks!])
250 if test x$need_link_unlink = xyes; then
251 AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
254 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
255 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
256 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
257 AM_CONDITIONAL(PLATFORM_DARWIN, test x$platform_darwin = xyes)
258 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
260 AC_CHECK_TOOL(CC, gcc, gcc)
267 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
269 # Set ASFLAGS if not already set.
270 : ${CCASFLAGS='$(CFLAGS)'}
274 AC_CHECK_PROG(BISON, bison,yes,no)
275 if test "x$BISON" = "xno";
277 AC_MSG_ERROR([You need to install bison])
280 dnl may require a specific autoconf version
281 dnl AC_PROG_CC_FOR_BUILD
282 dnl CC_FOR_BUILD not automatically detected
284 CFLAGS_FOR_BUILD=$CFLAGS
286 if test "x$cross_compiling" = "xyes"; then
291 AC_SUBST(CC_FOR_BUILD)
292 AC_SUBST(CFLAGS_FOR_BUILD)
294 AC_SUBST(BUILD_EXEEXT)
296 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
297 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
302 # This causes monodis to not link correctly
303 #AC_DISABLE_FAST_INSTALL
305 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
308 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
309 AC_SUBST(export_ldflags)
311 # Test whenever ld supports -version-script
314 if test "x$lt_cv_prog_gnu_ld" = "xno"; then
315 no_version_script=yes
318 AM_CONDITIONAL(NO_VERSION_SCRIPT, test x$no_version_script = xyes)
320 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)
321 AC_CHECK_HEADERS(sys/user.h sys/socket.h sys/ipc.h sys/sem.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)
324 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
325 if test x$have_zlib = xyes; then
326 AC_TRY_COMPILE([#include <zlib.h>], [
328 #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
331 #error No good zlib found
334 AC_MSG_RESULT(Using system zlib)
335 zlib_msg="system zlib"
337 AC_MSG_RESULT(Using embedded zlib)
339 zlib_msg="bundled zlib"
343 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
344 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
346 # for mono/metadata/debug-symfile.c
347 AC_CHECK_HEADERS(elf.h)
350 AC_CHECK_HEADERS(poll.h)
351 AC_CHECK_HEADERS(sys/poll.h)
352 AC_CHECK_HEADERS(sys/wait.h)
353 AC_CHECK_HEADERS(grp.h)
354 AC_CHECK_HEADERS(syslog.h)
357 AC_CHECK_HEADERS(wchar.h)
358 AC_CHECK_HEADERS(ieeefp.h)
359 AC_MSG_CHECKING(for isinf)
360 AC_TRY_LINK([#include <math.h>], [
364 AC_DEFINE(HAVE_ISINF, 1, [isinf available])
366 # We'll have to use signals
371 # not 64 bit clean in cross-compile
372 AC_CHECK_SIZEOF(void *, 4)
375 if test x"$GCC" = xyes; then
376 WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings'
377 # The runtime code does not respect ANSI C strict aliasing rules
378 CFLAGS="$CFLAGS -fno-strict-aliasing"
381 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
382 AC_MSG_CHECKING(for -Wdeclaration-after-statement option to gcc)
392 # The Sun Forte compiler complains about inline functions that access static variables
393 # so disable all inlining.
396 CFLAGS="$CFLAGS -Dinline="
400 CFLAGS="$CFLAGS -g $WARN"
401 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
403 # Where's the 'mcs' source tree?
404 if test -d $srcdir/mcs; then
411 # A sanity check to catch cases where the package was unpacked
412 # with an ancient tar program (Solaris)
414 AC_ARG_ENABLE(solaris-tar-check,
415 [ --disable-solaris-tar-check disable solaris tar check],
416 do_solaris_tar_check=no, do_solaris_tar_check=yes)
418 if test x"$do_solaris_tar_check" = xyes; then
419 AC_MSG_CHECKING(integrity of package)
420 if test -f $srcdir/$mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
424 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"
425 AC_MSG_ERROR([$errorm])
429 mcs_topdir='$(top_srcdir)/'$mcsdir
430 mcs_topdir_from_srcdir='$(top_builddir)/'$mcsdir
432 ## Maybe should also disable if mcsdir is invalid. Let's punt the issue for now.
433 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
435 AC_SUBST([mcs_topdir])
436 AC_SUBST([mcs_topdir_from_srcdir])
438 # Where's the 'olive' source tree?
439 if test -d $srcdir/olive; then
445 if test -d $srcdir/$olivedir; then
446 olive_topdir='$(top_srcdir)/'$olivedir
449 # gettext: prepare the translation directories.
450 # we do not configure the full gettext, as we consume it dynamically from C#
453 if test "x$USE_NLS" = "xyes"; then
454 AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
456 if test "x$HAVE_MSGFMT" = "xno"; then
457 AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
461 AC_ARG_WITH([libgdiplus],
462 [ --with-libgdiplus=installed|sibling|<path> Override the libgdiplus used for System.Drawing tests (defaults to installed)],
463 [], [with_libgdiplus=installed])
465 case $with_libgdiplus in
466 no|installed) libgdiplus_loc= ;;
467 yes|sibling) libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la ;;
468 /*) libgdiplus_loc=$with_libgdiplus ;;
469 *) libgdiplus_loc=`pwd`/$with_libgdiplus ;;
471 AC_SUBST([libgdiplus_loc])
473 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
474 if test "x$PKG_CONFIG" = "xno"; then
475 AC_MSG_ERROR([You need to install pkg-config])
479 AC_ARG_WITH(crosspkgdir, [ --with-crosspkgdir=/path/to/pkg-config/dir Change pkg-config dir to custom dir],
480 if test x$with_crosspkgdir = "x"; then
481 if test -s $PKG_CONFIG_PATH; then
482 pkg_config_path=$PKG_CONFIG_PATH
485 pkg_config_path=$with_crosspkgdir
486 PKG_CONFIG_PATH=$pkg_config_path
487 export PKG_CONFIG_PATH
492 [ --with-glib=embedded|system Choose glib API: system or embedded (default to system)],
493 [], [with_glib=system])
499 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
500 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
501 BUILD_GLIB_CFLAGS="$GLIB_CFLAGS"
502 BUILD_GLIB_LIBS="$GLIB_LIBS"
503 GMODULE_CFLAGS="$GLIB_CFLAGS"
504 GMODULE_LIBS="$GLIB_LIBS"
506 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
507 AC_CONFIG_SUBDIRS(eglib)
510 if test "x$cross_compiling" = "xyes"; then
511 pkg_config_path="$PKG_CONFIG_PATH"
512 unset PKG_CONFIG_PATH
514 BUILD_GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
515 BUILD_GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`
516 if test "x$cross_compiling" = "xyes"; then
517 PKG_CONFIG_PATH=$pkg_config_path
518 export PKG_CONFIG_PATH
521 ## Versions of dependencies
522 GLIB_REQUIRED_VERSION=2.4.0
525 dnl No, you will not replace this check with a pkg.m4 check
527 if $PKG_CONFIG --atleast-version=$GLIB_REQUIRED_VERSION glib-2.0; then
528 GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
529 GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`
530 GMODULE_CFLAGS=`$PKG_CONFIG --cflags gmodule-2.0`
531 GMODULE_LIBS=`$PKG_CONFIG --libs gmodule-2.0`
533 AC_MSG_ERROR([You need at least glib-2.0 $GLIB_REQUIRED_VERSION])
537 AC_MSG_ERROR([Invalid argument to --with-glib.])
539 AM_CONDITIONAL(EGLIB_BUILD, test x$with_glib = xembedded)
541 AC_SUBST(GLIB_CFLAGS)
543 AC_SUBST(GMODULE_CFLAGS)
544 AC_SUBST(GMODULE_LIBS)
545 AC_SUBST(BUILD_GLIB_CFLAGS)
546 AC_SUBST(BUILD_GLIB_LIBS)
549 if test x$cross_compiling$host_win32 = xnoyes; then
550 AC_MSG_CHECKING(for cygwin glib2-dev package)
551 if [ cygcheck --f /usr/lib/libglib-2.0.dll.a | grep -q glib2-devel ]; then
553 AC_MSG_ERROR([Mono cannot be built with the cygwin glib2-devel package installed, because that package doesn't work with -mno-cygwin. Please uninstall it then re-run configure.])
555 AC_MSG_RESULT(not found, ok)
558 AC_MSG_CHECKING(for broken gwin32.h)
559 glib_include=`$PKG_CONFIG --cflags-only-I glib-2.0 | sed -e 's/ -I.*//g' | sed -e 's/-I//g'`
560 if test -f $glib_include/glib/gwin32.h; then
561 if [ grep ftruncate $glib_include/glib/gwin32.h | grep -q define ]; then
562 AC_MSG_RESULT(failed)
564 AC_MSG_ERROR([Your version of gwin32.h is broken and will cause compilation errors when building mono. Please fix it by deleting the line: '$hashmark define ftruncate...' from '$glib_include/glib/gwin32.h' then re-run configure.])
570 AC_ARG_WITH(gc, [ --with-gc=boehm,included,none Defaults to included],[gc=$with_gc],[gc=$gc_default])
572 # Enable support for fast thread-local storage
573 # Some systems have broken support, so we allow to disable it.
574 AC_ARG_WITH(tls, [ --with-tls=__thread,pthread select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
576 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
577 # This does not work on some platforms (bug #55253)
578 AC_ARG_WITH(sigaltstack, [ --with-sigaltstack=yes,no enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
580 AC_ARG_WITH(static_mono, [ --with-static_mono=yes,no link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
582 if test "x$enable_static" = "xno"; then
586 if test "x$host_win32" = "xyes"; then
587 # Boehm GC requires the runtime to be in its own dll
591 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
592 AC_ARG_ENABLE(mcs-build, [ --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
594 AC_ARG_WITH(xen_opt, [ --with-xen_opt=yes,no Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
595 if test "x$with_xen_opt" = "xyes"; then
596 AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
598 CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
599 AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
604 # Pass it to libgc as well
605 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
612 AC_ARG_ENABLE(quiet-build, [ --enable-quiet-build Enable quiet runtime build (on by default)], enable_quiet_build=$enableval, enable_quiet_build=yes)
614 DISABLED_FEATURES=none
616 AC_ARG_ENABLE(minimal, [ --enable-minimal=LIST drop support for LIST subsystems.
617 LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug,
618 reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd,soft_debug.],
620 for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
621 eval "mono_feature_disable_$feature='yes'"
623 DISABLED_FEATURES=$enable_minimal
624 disabled="Disabled: $enable_minimal"
627 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
629 if test "x$mono_feature_disable_aot" = "xyes"; then
630 AC_DEFINE(DISABLE_AOT_COMPILER, 1, [Disable AOT Compiler])
631 AC_MSG_NOTICE([Disabled AOT compiler])
634 if test "x$mono_feature_disable_profiler" = "xyes"; then
635 AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
636 AC_MSG_NOTICE([Disabled support for the profiler])
638 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
640 if test "x$mono_feature_disable_decimal" = "xyes"; then
641 AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
642 AC_MSG_NOTICE([Disabled support for decimal])
645 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
646 AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
647 AC_MSG_NOTICE([Disabled support for P/Invoke])
650 if test "x$mono_feature_disable_debug" = "xyes"; then
651 AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
652 AC_MSG_NOTICE([Disabled support for runtime debugging])
655 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
656 AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
657 mono_feature_disable_reflection_emit_save=yes
658 AC_MSG_NOTICE([Disabled support for Reflection.Emit])
661 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
662 AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
663 AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
666 if test "x$mono_feature_disable_large_code" = "xyes"; then
667 AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
668 AC_MSG_NOTICE([Disabled support for large assemblies])
671 if test "x$mono_feature_disable_logging" = "xyes"; then
672 AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
673 AC_MSG_NOTICE([Disabled support for logging])
676 if test "x$mono_feature_disable_com" = "xyes"; then
677 AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
678 AC_MSG_NOTICE([Disabled COM support])
681 if test "x$mono_feature_disable_ssa" = "xyes"; then
682 AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
683 AC_MSG_NOTICE([Disabled SSA JIT optimizations])
686 if test "x$mono_feature_disable_generics" = "xyes"; then
687 AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
688 AC_MSG_NOTICE([Disabled Generics Support])
691 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
692 AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
693 AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
696 if test "x$mono_feature_disable_portability" = "xyes"; then
697 AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
698 AC_MSG_NOTICE([Disabled IO Portability layer])
701 if test "x$mono_feature_disable_attach" = "xyes"; then
702 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
703 AC_MSG_NOTICE([Disabled agent attach])
706 if test "x$mono_feature_disable_full_messages" = "xyes"; then
707 AC_DEFINE(DISABLE_FULL_MESSAGES, 1, [Disables building in the full table of WAPI messages])
708 AC_MSG_NOTICE([Disabled full messages for Win32 errors, only core message strings shipped])
711 if test "x$mono_feature_disable_verifier" = "xyes"; then
712 AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
713 AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
716 if test "x$mono_feature_disable_jit" = "xyes"; then
717 AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
718 AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
721 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
723 if test "x$mono_feature_disable_simd" = "xyes"; then
724 AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
725 AC_MSG_NOTICE([Disabled SIMD support])
728 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
729 AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
730 AC_MSG_NOTICE([Disabled Soft Debugger.])
733 AC_MSG_CHECKING(for visibility __attribute__)
735 void __attribute__ ((visibility ("hidden"))) doit (void) {}
736 void main () { doit (); }
738 have_visibility_hidden=yes
741 have_visibility_hidden=no
745 AC_MSG_CHECKING(for deprecated __attribute__)
747 int doit (void) __attribute__ ((deprecated));
748 int doit (void) { return 0; }
759 AC_ARG_ENABLE(parallel-mark, [ --enable-parallel-mark Enables GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
760 if test x$enable_parallel_mark = xyes; then
761 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
770 AC_CHECK_HEADERS(gc.h gc/gc.h, gc_headers=yes)
771 AC_CHECK_LIB(gc, GC_malloc, found_boehm="yes",,$libdl)
773 if test "x$found_boehm" != "xyes"; then
774 AC_MSG_ERROR("GC requested but libgc not found! Install libgc or run configure with --with-gc=none.")
776 if test "x$gc_headers" != "xyes"; then
777 AC_MSG_ERROR("GC requested but header files not found! You may need to install them by hand.")
780 AC_DEFINE(HAVE_BOEHM_GC, 1, [Have Boehm GC])
781 AC_SUBST(HAVE_BOEHM_GC)
782 LIBGC_LIBS="-lgc $libdl"
783 LIBGC_STATIC_LIBS="$LIBGC_LIBS"
785 # AC_CHECK_FUNCS does not work for some reason...
786 AC_CHECK_LIB(gc, GC_gcj_malloc, found_gcj_malloc="yes",,$libdl)
787 if test "x$found_gcj_malloc" = "xyes"; then
788 AC_DEFINE(HAVE_GC_GCJ_MALLOC, 1, [Have GC_gcj_malloc])
789 AC_DEFINE_UNQUOTED(USED_GC_NAME, "System Boehm (with typed GC)", [GC description])
791 AC_DEFINE_UNQUOTED(USED_GC_NAME, "System Boehm (no typed GC)", [GC description])
793 AC_CHECK_LIB(gc, GC_enable, found_gc_enable="yes",,$libdl)
794 if test "x$found_gc_enable" = "xyes"; then
795 AC_DEFINE(HAVE_GC_ENABLE, 1, [Have 'GC_enable'])
805 LIBGC_CFLAGS='-I$(top_srcdir)/libgc/include'
806 LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
807 LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
809 AC_DEFINE(HAVE_BOEHM_GC, 1, [Have Boehm GC])
810 AC_SUBST(HAVE_BOEHM_GC)
812 AC_DEFINE(HAVE_GC_H, 1, [Have gc.h])
813 AC_DEFINE(USE_INCLUDED_LIBGC, 1, [Use included libgc])
815 # The included libgc contains GCJ support
816 AC_DEFINE(HAVE_GC_GCJ_MALLOC, 1, [Have GC_gcj_malloc])
817 AC_DEFINE(HAVE_GC_ENABLE, 1, [Have GC_enable])
818 if test x$enable_parallel_mark = xyes; then
819 AC_DEFINE_UNQUOTED(USED_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
821 AC_DEFINE_UNQUOTED(USED_GC_NAME, "Included Boehm (with typed GC)", [GC description])
829 AC_DEFINE(HAVE_SGEN_GC,1,[Using the simple generational GC.])
830 AC_DEFINE(HAVE_MOVING_COLLECTOR,1,[The GC can move objects.])
831 AC_DEFINE(HAVE_WRITE_BARRIERS,1,[The GC needs write barriers.])
832 AC_DEFINE_UNQUOTED(USED_GC_NAME, "Simple generational", [GC description])
836 AC_MSG_WARN("Compiling mono without GC.")
837 AC_DEFINE_UNQUOTED(USED_GC_NAME, "none", [GC description])
838 AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
841 AC_MSG_ERROR([Invalid argument to --with-gc.])
845 AC_ARG_WITH(large-heap, [ --with-large-heap=yes,no Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
846 if test "x$large_heap" = "xyes"; then
848 CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
851 AM_CONDITIONAL(INCLUDED_LIBGC, test x$use_included_gc = xyes)
852 AC_SUBST(LIBGC_CFLAGS)
854 AC_SUBST(LIBGC_STATIC_LIBS)
858 dnl End of libgc checks
861 dnl *************************************
862 dnl *** Checks for zero length arrays ***
863 dnl *************************************
864 AC_MSG_CHECKING(whether $CC supports zero length arrays)
872 AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
875 AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
878 if test x$target_win32 = xno; then
880 dnl hires monotonic clock support
881 AC_SEARCH_LIBS(clock_gettime, rt)
883 dnl dynamic loader support
884 AC_CHECK_FUNC(dlopen, DL_LIB="",
885 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
887 if test x$dl_support = xno; then
888 AC_MSG_WARN([No dynamic loading support available])
891 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
892 dnl from glib's configure.in
893 AC_CACHE_CHECK([for preceeding underscore in symbols],
895 AC_TRY_RUN([#include <dlfcn.h>
896 int mono_underscore_test (void) { return 42; }
898 void *f1 = (void*)0, *f2 = (void*)0, *handle;
899 handle = dlopen ((void*)0, 0);
901 f1 = dlsym (handle, "mono_underscore_test");
902 f2 = dlsym (handle, "_mono_underscore_test");
903 } return (!f2 || f1);
905 [mono_cv_uscore=yes],
909 if test "x$mono_cv_uscore" = "xyes"; then
910 MONO_DL_NEED_USCORE=1
912 MONO_DL_NEED_USCORE=0
914 AC_SUBST(MONO_DL_NEED_USCORE)
915 AC_CHECK_FUNC(dlerror)
918 dnl ******************************************************************
919 dnl *** Checks for the IKVM JNI interface library ***
920 dnl ******************************************************************
921 AC_ARG_WITH(ikvm-native, [ --with-ikvm-native=yes,no build the IKVM JNI interface library (defaults to yes)],[with_ikvm_native=$withval],[with_ikvm_native=yes])
924 if test x$with_ikvm_native = xyes; then
925 ikvm_native_dir=ikvm-native
926 jdk_headers_found="IKVM Native"
929 AC_SUBST(ikvm_native_dir)
931 AC_CHECK_HEADERS(execinfo.h)
933 AC_CHECK_FUNCS(getgrgid_r)
934 AC_CHECK_FUNCS(getgrnam_r)
935 AC_CHECK_FUNCS(getpwnam_r)
936 AC_CHECK_FUNCS(getpwuid_r)
937 AC_CHECK_FUNCS(getresuid)
938 AC_CHECK_FUNCS(setresuid)
939 AC_CHECK_FUNCS(kqueue)
940 AC_CHECK_FUNCS(backtrace_symbols)
941 AC_CHECK_FUNCS(mkstemp)
943 AC_CHECK_FUNCS(madvise)
944 AC_CHECK_FUNCS(getrusage)
945 AC_CHECK_FUNCS(getpriority)
946 AC_CHECK_FUNCS(setpriority)
947 AC_CHECK_FUNCS(dl_iterate_phdr)
949 AC_CHECK_FUNCS(sched_setaffinity)
951 dnl ******************************************************************
952 dnl *** Check for large file support ***
953 dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
954 dnl ******************************************************************
956 # Check that off_t can represent 2**63 - 1 correctly, working around
957 # potential compiler bugs. Defines LARGE_FILE_SUPPORT, adds $1 to
958 # CPPFLAGS and sets $large_offt to yes if the test succeeds
960 AC_DEFUN([LARGE_FILES], [
961 large_CPPFLAGS=$CPPFLAGS
962 CPPFLAGS="$CPPFLAGS $1"
964 #include <sys/types.h>
966 #define BIG_OFF_T (((off_t)1<<62)-1+((off_t)1<<62))
969 int big_off_t=((BIG_OFF_T%2147483629==721) &&
970 (BIG_OFF_T%2147483647==1));
979 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
980 large_CPPFLAGS="$large_CPPFLAGS $1"
985 CPPFLAGS=$large_CPPFLAGS
988 AC_MSG_CHECKING(if off_t is 64 bits wide)
990 if test $large_offt = no; then
991 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
992 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
994 if test $large_offt = no; then
995 AC_MSG_WARN([No 64 bit file size support available])
998 dnl *****************************
999 dnl *** Checks for libsocket ***
1000 dnl *****************************
1001 AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1003 dnl *******************************
1004 dnl *** Checks for MSG_NOSIGNAL ***
1005 dnl *******************************
1006 AC_MSG_CHECKING(for MSG_NOSIGNAL)
1007 AC_TRY_COMPILE([#include <sys/socket.h>], [
1008 int f = MSG_NOSIGNAL;
1010 # Yes, we have it...
1012 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1014 # We'll have to use signals
1018 dnl *****************************
1019 dnl *** Checks for SOL_IP ***
1020 dnl *****************************
1021 AC_MSG_CHECKING(for SOL_IP)
1022 AC_TRY_COMPILE([#include <netdb.h>], [
1025 # Yes, we have it...
1027 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1029 # We'll have to use getprotobyname
1033 dnl *****************************
1034 dnl *** Checks for SOL_IPV6 ***
1035 dnl *****************************
1036 AC_MSG_CHECKING(for SOL_IPV6)
1037 AC_TRY_COMPILE([#include <netdb.h>], [
1038 int level = SOL_IPV6;
1040 # Yes, we have it...
1042 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1044 # We'll have to use getprotobyname
1048 dnl *****************************
1049 dnl *** Checks for SOL_TCP ***
1050 dnl *****************************
1051 AC_MSG_CHECKING(for SOL_TCP)
1052 AC_TRY_COMPILE([#include <netdb.h>], [
1053 int level = SOL_TCP;
1055 # Yes, we have it...
1057 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1059 # We'll have to use getprotobyname
1063 dnl *****************************
1064 dnl *** Checks for IP_PKTINFO ***
1065 dnl *****************************
1066 AC_MSG_CHECKING(for IP_PKTINFO)
1067 AC_TRY_COMPILE([#include <netdb.h>], [
1068 int level = IP_PKTINFO;
1070 # Yes, we have it...
1072 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1077 dnl *****************************
1078 dnl *** Checks for IPV6_PKTINFO ***
1079 dnl *****************************
1080 AC_MSG_CHECKING(for IPV6_PKTINFO)
1081 AC_TRY_COMPILE([#include <netdb.h>], [
1082 int level = IPV6_PKTINFO;
1084 # Yes, we have it...
1086 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1091 dnl **********************************
1092 dnl *** Checks for IP_DONTFRAGMENT ***
1093 dnl **********************************
1094 AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1095 AC_TRY_COMPILE([#include <netdb.h>], [
1096 int level = IP_DONTFRAGMENT;
1098 # Yes, we have it...
1100 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1105 dnl **********************************
1106 dnl *** Checks for IP_MTU_DISCOVER ***
1107 dnl **********************************
1108 AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1109 AC_TRY_COMPILE([#include <netdb.h>], [
1110 int level = IP_MTU_DISCOVER;
1112 # Yes, we have it...
1114 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1119 dnl *********************************
1120 dnl *** Check for struct ip_mreqn ***
1121 dnl *********************************
1122 AC_MSG_CHECKING(for struct ip_mreqn)
1123 AC_TRY_COMPILE([#include <netinet/in.h>], [
1124 struct ip_mreqn mreq;
1125 mreq.imr_address.s_addr = 0;
1127 # Yes, we have it...
1129 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1131 # We'll just have to try and use struct ip_mreq
1133 AC_MSG_CHECKING(for struct ip_mreq)
1134 AC_TRY_COMPILE([#include <netinet/in.h>], [
1135 struct ip_mreq mreq;
1136 mreq.imr_interface.s_addr = 0;
1138 # Yes, we have it...
1140 AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1142 # No multicast support
1147 dnl **********************************
1148 dnl *** Check for gethostbyname2_r ***
1149 dnl **********************************
1150 AC_MSG_CHECKING(for gethostbyname2_r)
1151 AC_TRY_LINK([#include <netdb.h>], [
1152 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1154 # Yes, we have it...
1156 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1161 dnl *****************************
1162 dnl *** Checks for libnsl ***
1163 dnl *****************************
1164 AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1166 AC_CHECK_FUNCS(inet_pton inet_aton)
1168 dnl ***********************************************
1169 dnl *** Checks for size of sockaddr_un.sun_path ***
1170 dnl ***********************************************
1171 # AC_CHECK_SIZEOF can't cope with struct members :-(
1172 AC_MSG_CHECKING(size of sockaddr_un.sun_path)
1173 AC_CACHE_VAL(mono_cv_sizeof_sunpath,
1175 #include <sys/types.h>
1180 struct sockaddr_un sock_un;
1181 FILE *f=fopen("conftestval", "w");
1183 fprintf(f, "%d\n", sizeof(sock_un.sun_path));
1186 ], mono_cv_sizeof_sunpath=`cat conftestval`,
1187 mono_cv_sizeof_sunpath=0,
1188 mono_cv_sizeof_sunpath=0)])dnl
1189 AC_MSG_RESULT($mono_cv_sizeof_sunpath)
1190 AC_DEFINE_UNQUOTED(MONO_SIZEOF_SUNPATH, $mono_cv_sizeof_sunpath, [Sizeof sock_un.sun_path])
1192 dnl *****************************
1193 dnl *** Checks for libxnet ***
1194 dnl *****************************
1197 AC_MSG_CHECKING(for Solaris XPG4 support)
1198 if test -f /usr/lib/libxnet.so; then
1199 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1200 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1201 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1208 if test "$GCC" = "yes"; then
1209 CFLAGS="$CFLAGS -Wno-char-subscripts"
1214 dnl *****************************
1215 dnl *** Checks for libpthread ***
1216 dnl *****************************
1217 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1218 # and libpthread does not exist
1222 AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1225 AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1228 AC_CHECK_HEADERS(pthread.h)
1229 AC_CHECK_FUNCS(pthread_mutex_timedlock)
1230 AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np)
1231 AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1232 AC_TRY_COMPILE([ #include <pthread.h>], [
1233 pthread_mutexattr_t attr;
1234 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1239 AC_MSG_WARN(Using mono_mutex_t for recursive mutexes)
1240 AC_DEFINE(USE_MONO_MUTEX, 1, [Use mono_mutex_t])
1242 AC_CHECK_FUNCS(pthread_attr_setstacksize)
1243 AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1244 AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1246 dnl ***********************************
1247 dnl *** Checks for signals
1248 dnl ***********************************
1249 AC_CHECK_HEADERS(signal.h)
1250 AC_CHECK_FUNCS(sigaction)
1252 dnl ***********************************
1253 dnl *** Checks for working __thread ***
1254 dnl ***********************************
1255 AC_MSG_CHECKING(for working __thread)
1256 if test "x$with_tls" != "x__thread"; then
1257 AC_MSG_RESULT(disabled)
1260 #include <pthread.h>
1262 static int res1, res2;
1264 void thread_main (void *arg)
1279 pthread_create (&t1, NULL, thread_main, 1);
1280 pthread_create (&t2, NULL, thread_main, 2);
1282 pthread_join (t1, NULL);
1283 pthread_join (t2, NULL);
1285 return !(res1 + res2 == 2);
1295 dnl **************************************
1296 dnl *** Checks for working sigaltstack ***
1297 dnl **************************************
1298 AC_MSG_CHECKING(for working sigaltstack)
1299 if test "x$with_sigaltstack" != "xyes"; then
1300 AC_MSG_RESULT(disabled)
1307 #include <pthread.h>
1308 #include <sys/wait.h>
1309 #if defined(__FreeBSD__) || defined(__NetBSD__)
1310 #define SA_STACK SA_ONSTACK
1313 sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1319 loop (void *ignored)
1330 struct sigaction sa;
1331 struct sigaltstack sas;
1333 pthread_attr_t attr;
1335 sa.sa_sigaction = sigsegv_signal_handler;
1336 sigemptyset (&sa.sa_mask);
1337 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
1338 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
1339 perror ("sigaction");
1343 sas.ss_sp = malloc (SIGSTKSZ);
1344 sas.ss_size = SIGSTKSZ;
1346 if (sigaltstack (&sas, NULL) == -1) {
1347 perror ("sigaltstack");
1351 pthread_attr_init (&attr);
1352 if (pthread_create(&id, &attr, loop, &attr) != 0) {
1353 printf ("pthread_create\n");
1377 for (i = 0; i < 3; ++i) {
1379 waitpid (son, &status, WNOHANG);
1380 if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
1384 kill (son, SIGKILL);
1390 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
1397 dnl ********************************
1398 dnl *** Checks for semaphore lib ***
1399 dnl ********************************
1400 # 'Real Time' functions on Solaris
1401 # posix4 on Solaris 2.6
1402 # pthread (first!) on Linux
1403 AC_SEARCH_LIBS(sem_init, pthread rt posix4)
1405 AC_SEARCH_LIBS(shm_open, pthread rt posix4)
1406 AC_CHECK_FUNCS(shm_open)
1408 dnl ********************************
1409 dnl *** Checks for timezone stuff **
1410 dnl ********************************
1411 AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
1417 ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
1418 if test $ac_cv_struct_tm_gmtoff = yes; then
1419 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
1421 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
1426 ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
1427 if test $ac_cv_var_timezone = yes; then
1428 AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
1430 AC_ERROR(unable to find a way to determine timezone)
1434 dnl *********************************
1435 dnl *** Checks for math functions ***
1436 dnl *********************************
1438 if test "x$has_broken_apple_cpp" != "xyes"; then
1439 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
1440 AC_TRY_LINK([#include <math.h>],
1442 AC_DEFINE(HAVE_FINITE, 1, [Have finite]) AC_MSG_RESULT(yes),
1445 AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
1446 AC_TRY_LINK([#include <math.h>],
1448 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
1451 dnl ****************************************************************
1452 dnl *** Checks for working poll() (macosx defines it but doesn't ***
1453 dnl *** have it in the library (duh)) ***
1454 dnl ****************************************************************
1455 AC_CHECK_FUNCS(poll)
1457 dnl *************************
1458 dnl *** Check for signbit ***
1459 dnl *************************
1460 AC_MSG_CHECKING(for signbit)
1461 AC_TRY_LINK([#include <math.h>], [
1462 int s = signbit(1.0);
1465 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
1470 dnl **********************************
1472 dnl **********************************
1473 AC_CHECK_HEADERS(sys/epoll.h)
1475 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
1476 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes" ; then
1477 AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
1480 dnl ******************************
1481 dnl *** Checks for SIOCGIFCONF ***
1482 dnl ******************************
1483 AC_CHECK_HEADERS(sys/ioctl.h)
1484 AC_CHECK_HEADERS(net/if.h)
1485 AC_MSG_CHECKING(for ifreq)
1488 #include <sys/ioctl.h>
1496 x = (void *) &ifr->ifr_addr;
1499 AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
1503 dnl **********************************
1504 dnl *** Checks for sin_len ***
1505 dnl **********************************
1506 AC_MSG_CHECKING(for sockaddr_in.sin_len)
1508 #include <netinet/in.h>
1510 struct sockaddr_in saddr;
1511 saddr.sin_len = sizeof (saddr);
1514 AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
1518 dnl **********************************
1519 dnl *** Checks for sin6_len ***
1520 dnl **********************************
1521 AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
1523 #include <netinet/in.h>
1525 struct sockaddr_in6 saddr6;
1526 saddr6.sin6_len = sizeof (saddr6);
1529 AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
1533 dnl **********************************
1534 dnl *** Checks for MonoPosixHelper ***
1535 dnl **********************************
1536 AC_CHECK_HEADERS(checklist.h)
1537 AC_CHECK_HEADERS(fstab.h)
1538 AC_CHECK_HEADERS(attr/xattr.h)
1539 AC_CHECK_HEADERS(sys/extattr.h)
1540 AC_CHECK_HEADERS(sys/sendfile.h)
1541 AC_CHECK_HEADERS(sys/statvfs.h)
1542 AC_CHECK_HEADERS(sys/statfs.h)
1543 AC_CHECK_HEADERS(sys/vfstab.h)
1544 AC_CHECK_HEADERS(sys/xattr.h)
1545 AC_CHECK_HEADERS(sys/mman.h)
1546 AC_CHECK_HEADERS(sys/param.h)
1547 AC_CHECK_HEADERS(sys/mount.h)
1548 AC_CHECK_FUNCS(getdomainname)
1549 AC_CHECK_FUNCS(setdomainname)
1550 AC_CHECK_FUNCS(fgetgrent)
1551 AC_CHECK_FUNCS(fgetpwent)
1552 AC_CHECK_FUNCS(fgetpwent)
1553 AC_CHECK_FUNCS(getfsstat)
1554 AC_CHECK_FUNCS(lutimes)
1555 AC_CHECK_FUNCS(mremap)
1556 AC_CHECK_FUNCS(remap_file_pages)
1557 AC_CHECK_FUNCS(posix_fadvise)
1558 AC_CHECK_FUNCS(posix_fallocate)
1559 AC_CHECK_FUNCS(posix_madvise)
1560 AC_CHECK_FUNCS(vsnprintf)
1561 AC_CHECK_FUNCS(sendfile)
1562 AC_CHECK_FUNCS(sethostid)
1563 AC_CHECK_FUNCS(statfs)
1564 AC_CHECK_FUNCS(fstatfs)
1565 AC_CHECK_FUNCS(statvfs)
1566 AC_CHECK_FUNCS(fstatvfs)
1567 AC_CHECK_FUNCS(stime)
1568 AC_CHECK_FUNCS(strerror_r)
1569 AC_CHECK_FUNCS(ttyname_r)
1570 AC_CHECK_SIZEOF(size_t)
1571 AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], ,
1572 [#include <sys/types.h>
1573 #include <sys/stat.h>
1574 #include <unistd.h>])
1575 AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
1576 [#include <sys/types.h>
1577 #include <sys/stat.h>
1578 #include <unistd.h>])
1579 AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
1580 [#include <sys/time.h>])
1581 AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
1582 [#include <unistd.h>
1583 #include <fcntl.h>])
1584 AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
1585 [#include <sys/poll.h>])
1586 AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
1587 [#include <sys/types.h>
1588 #include <sys/stat.h>
1589 #include <unistd.h>])
1590 AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
1591 [#include <time.h>])
1592 AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
1593 [#include <sys/time.h>
1594 #include <sys/types.h>
1595 #include <utime.h>])
1596 AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
1597 [#include <sys/time.h>])
1598 AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
1599 [#include <sys/types.h>
1600 #include <utime.h>])
1602 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,,
1603 [#include <sys/types.h>
1604 #include <dirent.h>])
1606 dnl Favour xattr through glibc, but use libattr if we have to
1607 AC_CHECK_FUNC(lsetxattr, ,
1608 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
1612 dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
1614 [struct kinfo_proc.kp_proc],,,
1615 [#include <sys/types.h>
1616 #include <sys/sysctl.h>
1617 #include <sys/proc.h>
1620 dnl *********************************
1621 dnl *** Checks for Windows compilation ***
1622 dnl *********************************
1623 AC_CHECK_HEADERS(sys/time.h)
1624 AC_CHECK_HEADERS(sys/param.h)
1625 AC_CHECK_HEADERS(dirent.h)
1627 dnl *********************************
1628 dnl *** Check for Console 2.0 I/O ***
1629 dnl *********************************
1630 AC_CHECK_HEADERS([curses.h])
1631 AC_CHECK_HEADERS([term.h], [], [],
1636 AC_CHECK_HEADERS([termios.h])
1638 dnl * This is provided in io-layer, but on windows it's only available
1640 AC_DEFINE(HAVE_GETPROCESSID, 1, [Define if GetProcessId is available])
1642 jdk_headers_found=no
1643 AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
1644 AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
1645 AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
1646 AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
1647 AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
1648 AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
1649 AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
1651 dnl *********************************
1652 dnl *** Check for struct ip_mreqn ***
1653 dnl *********************************
1654 AC_MSG_CHECKING(for struct ip_mreqn)
1655 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
1656 struct ip_mreqn mreq;
1657 mreq.imr_address.s_addr = 0;
1659 # Yes, we have it...
1661 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
1663 # We'll just have to try and use struct ip_mreq
1665 AC_MSG_CHECKING(for struct ip_mreq)
1666 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
1667 struct ip_mreq mreq;
1668 mreq.imr_interface.s_addr = 0;
1670 # Yes, we have it...
1672 AC_DEFINE(HAVE_STRUCT_IP_MREQ)
1674 # No multicast support
1678 AC_CHECK_FUNCS(GetProcessId)
1682 AC_MSG_CHECKING(for socklen_t)
1684 #include <sys/types.h>
1685 #include <sys/socket.h>
1689 ac_cv_c_socklen_t=yes
1690 AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
1696 AC_MSG_CHECKING(for array element initalizer support)
1697 AC_TRY_COMPILE([#include <sys/socket.h>], [
1698 const int array[] = {[1] = 2,};
1700 # Yes, we have it...
1702 AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
1704 # We'll have to use signals
1708 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
1709 # Simply calling trunc (0.0) is no good since gcc will optimize the call away
1710 AC_TRY_LINK([#include <math.h>],
1711 [ static void *p = &trunc; ],
1713 AC_DEFINE(HAVE_TRUNC)
1719 if test "x$ac_cv_truncl" != "xyes"; then
1720 AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
1723 AC_CHECK_FUNCS(round)
1724 AC_CHECK_FUNCS(rint)
1726 dnl ****************************
1727 dnl *** Look for /dev/random ***
1728 dnl ****************************
1730 AC_MSG_CHECKING([if usage of random device is requested])
1731 AC_ARG_ENABLE(dev-random,
1732 [ --disable-dev-random disable the use of the random device (enabled by default)],
1733 try_dev_random=$enableval, try_dev_random=yes)
1735 AC_MSG_RESULT($try_dev_random)
1739 NAME_DEV_RANDOM="/dev/srandom"
1742 dnl Win32 does not have /dev/random, they have their own method...
1744 *-*-mingw*|*-*-cygwin*)
1745 ac_cv_have_dev_random=no
1748 dnl Everywhere else, it's /dev/random
1751 NAME_DEV_RANDOM="/dev/random"
1755 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
1757 dnl Now check if the device actually exists
1759 if test "x$try_dev_random" = "xyes"; then
1760 AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
1761 [if test -r "$NAME_DEV_RANDOM" ; then
1762 ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
1763 if test "x$ac_cv_have_dev_random" = "xyes"; then
1764 AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
1767 AC_MSG_CHECKING(for random device)
1768 ac_cv_have_dev_random=no
1769 AC_MSG_RESULT(has been disabled)
1772 if test "x$host_win32" = "xyes"; then
1773 AC_DEFINE(HAVE_CRYPT_RNG)
1776 if test "x$ac_cv_have_dev_random" = "xno" \
1777 && test "x$host_win32" = "xno"; then
1780 *** A system-provided entropy source was not found on this system.
1781 *** Because of this, the System.Security.Cryptography random number generator
1782 *** will throw a NotImplemented exception.
1784 *** If you are seeing this message, and you know your system DOES have an
1785 *** entropy collection in place, please contact <crichton@gimp.org> and
1786 *** provide information about the system and how to access the random device.
1788 *** Otherwise you can install either egd or prngd and set the environment
1789 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
1793 AC_MSG_CHECKING([if inter-process shared handles are requested])
1794 AC_ARG_ENABLE(shared-handles, [ --disable-shared-handles disable inter-process shared handles], try_shared_handles=$enableval, try_shared_handles=yes)
1795 AC_MSG_RESULT($try_shared_handles)
1796 if test "x$try_shared_handles" != "xyes"; then
1797 AC_DEFINE(DISABLE_SHARED_HANDLES, 1, [Disable inter-process shared handles])
1798 AC_SUBST(DISABLE_SHARED_HANDLES)
1801 AC_ARG_ENABLE(nunit-tests, [ --enable-nunit-tests Run the nunit tests of the class library on 'make check'])
1802 AM_CONDITIONAL(ENABLE_NUNIT_TESTS, [test x$enable_nunit_tests = xyes])
1804 AC_MSG_CHECKING([if big-arrays are to be enabled])
1805 AC_ARG_ENABLE(big-arrays, [ --enable-big-arrays Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
1806 if test "x$enable_big_arrays" = "xyes" ; then
1807 if test "x$ac_cv_sizeof_void_p" = "x8"; then
1808 AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
1810 AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
1813 AC_MSG_RESULT($enable_big_arrays)
1819 AC_ARG_ENABLE(dtrace,[ --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
1821 if test "x$enable_dtrace" = "xyes"; then
1822 if test "x$has_dtrace" = "xno"; then
1823 AC_MSG_ERROR([DTrace probes are not supported on this platform.])
1825 AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
1826 if test "x$DTRACE" = "xno"; then
1827 AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
1829 elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
1830 AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
1836 if test "x$enable_dtrace" = "xyes"; then
1837 AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
1839 if test "x$ac_cv_sizeof_void_p" = "x8"; then
1842 DTRACEFLAGS="-arch ppc64"
1845 DTRACEFLAGS="-arch x86_64"
1854 DTRACEFLAGS="-arch ppc"
1857 DTRACEFLAGS="-arch i386"
1864 AC_SUBST(DTRACEFLAGS)
1870 AC_CHECK_HEADERS([sys/sdt.h])
1872 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
1873 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
1879 AC_ARG_ENABLE(llvm,[ --enable-llvm Enable the experimental LLVM back-end], enable_llvm=$enableval, enable_llvm=no)
1881 if test "x$enable_llvm" = "xyes"; then
1882 AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
1883 if test "x$LLVM_CONFIG" = "xno"; then
1884 AC_MSG_ERROR([llvm-config not found.])
1887 LLVM_CXXFLAGS=`$LLVM_CONFIG --cflags`
1888 LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
1889 LLVM_LIBS=`$LLVM_CONFIG --libs core bitwriter jit x86codegen`
1890 LLVM_LIBS="$LLVM_LDFLAGS $LLVM_LIBS -lstdc++"
1892 # Should be something like '2.6' or '2.7svn'
1893 llvm_version=`$LLVM_CONFIG --version`
1894 major_version=`echo $llvm_version | cut -c 1`
1895 minor_version=`echo $llvm_version | cut -c 3`
1897 AC_DEFINE_UNQUOTED(LLVM_MAJOR_VERSION, $major_version, [Major version of LLVM libraries])
1898 AC_DEFINE_UNQUOTED(LLVM_MINOR_VERSION, $minor_version, [Minor version of LLVM libraries])
1900 # Have to pass these on the command line since mini-llvm-cpp.h already includes
1902 LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_MAJOR_VERSION=$major_version -DLLVM_MINOR_VERSION=$minor_version"
1904 AC_SUBST(LLVM_CXXFLAGS)
1906 AC_SUBST(LLVM_LDFLAGS)
1907 AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
1910 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
1913 ACCESS_UNALIGNED="yes"
1919 SQLITE="libsqlite.so.0"
1920 SQLITE3="libsqlite3.so.0"
1923 sizeof_register="SIZEOF_VOID_P"
1928 # mips-sgi-irix5.* | mips-sgi-irix6.*)
1930 # ACCESS_UNALIGNED="no"
1935 ACCESS_UNALIGNED="no"
1939 AC_MSG_CHECKING(for mips n32)
1940 AC_TRY_COMPILE([], [
1942 #if _MIPS_SIM != _ABIN32
1962 if test "x$ac_cv_sizeof_void_p" = "x8"; then
1967 # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
1968 # int astruct __attribute__ ((visibility ("hidden")));
1971 # void *p = &astruct;
1973 # gcc -fPIC --shared -o libfoo.so foo.c
1975 # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
1976 # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
1977 have_visibility_hidden=no
1980 have_visibility_hidden=no
1983 x86_64-*-* | amd64-*-*)
1992 ACCESS_UNALIGNED="no"
1997 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
1998 libmono_ldflags="-lunwind"
2001 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2008 ACCESS_UNALIGNED="no"
2016 if test x"$GCC" = xyes; then
2017 # We don't support v8 cpus
2018 CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
2020 if test x"$AR" = xfalse; then
2021 AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
2024 alpha*-*-linux* | alpha*-*-osf*)
2026 ACCESS_UNALIGNED="no"
2030 CFLAGS="$CFLAGS -mieee -O0"
2037 *-*-mingw*|*-*-cygwin*)
2038 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
2039 have_visibility_hidden=no
2042 hppa2.0w-hp-hpux11.00 | hppa64-hp-hpux11.00)
2046 ACCESS_UNALIGNED="no"
2047 INTERP_SUPPORTED=yes
2053 ACCESS_UNALIGNED="no"
2057 macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
2058 powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
2059 if test "x$ac_cv_sizeof_void_p" = "x8"; then
2061 CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
2062 CFLAGS="$CFLAGS -mminimal-toc"
2065 CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
2074 ACCESS_UNALIGNED="no"
2076 CPPFLAGS="$CPPFLAGS -DARM_FPU_NONE=1"
2082 ACCESS_UNALIGNED="no"
2089 ACCESS_UNALIGNED="no"
2092 # Required CFLAGS for s390[x]. USE_STRING_INLINES is automatic with gcc 4.1
2093 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
2098 ACCESS_UNALIGNED="no"
2101 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
2105 if test "x$host" != "x$target"; then
2107 powerpc64-ps3-linux-gnu)
2109 arch_target=powerpc64
2110 AC_DEFINE(TARGET_PS3, 1, [...])
2111 AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
2112 # It would be better to just use TARGET_POWERPC64, but lots of code already
2114 AC_DEFINE(__mono_ppc64__, 1, [...])
2115 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
2117 target_byte_order=G_BIG_ENDIAN
2120 powerpc64-xbox360-linux-gnu)
2122 arch_target=powerpc64
2123 AC_DEFINE(TARGET_XBOX360, 1, [...])
2124 AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
2125 # It would be better to just use TARGET_POWERPC64, but lots of code already
2128 target_byte_order=G_BIG_ENDIAN
2131 AC_MSG_ERROR([Cross compiling is only supported for targets matching 'powerpc64-{ps3,xbox360}-linux-gnu'])
2135 # FIXME: Define the others as well
2138 AC_DEFINE(TARGET_X86, 1, [...])
2141 AC_DEFINE(TARGET_AMD64, 1, [...])
2144 AC_DEFINE(TARGET_ARM, 1, [...])
2147 AC_DEFINE(TARGET_POWERPC, 1, [...])
2150 AC_DEFINE(TARGET_POWERPC, 1, [...])
2151 AC_DEFINE(TARGET_POWERPC64, 1, [...])
2155 if test "x$sizeof_register" = "x4"; then
2156 AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
2157 elif test "x$sizeof_register" = "x8"; then
2158 AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
2160 AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
2163 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
2164 AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
2165 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
2166 AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
2168 AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
2171 if test "x$have_visibility_hidden" = "xyes"; then
2172 AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
2175 if test "x$have_deprecated" = "xyes"; then
2176 AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
2179 AC_ARG_WITH(jit, [ --with-jit=yes,no If you want to build scripts that default to the JIT (defaults to no)],[
2180 if test x$withval = xyes; then
2187 AC_ARG_WITH(interp, [ --with-interp=yes,no If you want to build scripts that default to the interpreter (defaults to no)],[
2188 if test x$withval = xyes; then
2196 if test x$JIT_SUPPORTED = xyes; then
2197 if $jit_wanted; then
2199 jit_status="Building and using the JIT"
2201 if $interp_wanted; then
2202 jit_status="Building the JIT, defaulting to the interpreter"
2204 AC_ERROR(No JIT or interpreter support available or selected.)
2208 if test x$interp_wanted = xtrue; then
2209 jit_status="interpreter"
2211 AC_ERROR(No JIT or interpreter support available or selected.)
2215 AM_CONDITIONAL(USE_JIT, test x$USEJIT = xtrue)
2223 INTL="libintl.dylib"
2224 SQLITE="libsqlite.0.dylib"
2225 SQLITE3="libsqlite3.0.dylib"
2242 AC_MSG_CHECKING(for the soname of libX11.so)
2243 for i in $x_libraries /usr/lib /usr/lib64; do
2245 if test -f $i/libX11.so.$r; then
2252 if test "x$X11" = "xlibX11.so"; then
2253 AC_MSG_WARN([Could not find X development libs. Do you have the -devel package installed? WinForms may not work...]);
2261 AC_CHECK_HEADERS(valgrind/memcheck.h)
2263 if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2264 if test "x$with_tls" = "x__thread"; then
2266 # On some linux distributions, TLS works in executables, but linking
2267 # against a shared library containing TLS fails with:
2268 # undefined reference to `__tls_get_addr'
2270 rm -f conftest.c conftest.so conftest
2271 echo "static __thread int foo; void main () { foo = 5; }" > conftest.c
2272 $CC -fPIC --shared -o conftest.so conftest.c > /dev/null 2>&1
2273 $CC -o conftest conftest.so > /dev/null 2>&1
2274 if test ! -f conftest; then
2275 AC_MSG_WARN([Disabling usage of __thread.]);
2278 rm -f conftest.c conftest.so conftest
2282 mono_debugger_supported=no
2283 if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86" -o "x$TARGET" = "xALPHA"; then
2284 if test x$use_included_gc = xyes; then
2287 mono_debugger_supported=yes
2290 mono_debugger_supported=yes
2296 AC_MSG_CHECKING(if the Mono Debugger is supported on this platform)
2297 if test "x$mono_debugger_supported" = "xyes"; then
2298 AC_DEFINE(MONO_DEBUGGER_SUPPORTED,1,[The Mono Debugger is supported on this platform])
2300 AC_MSG_RESULT($mono_debugger_supported)
2301 AM_CONDITIONAL(MONO_DEBUGGER_SUPPORTED, test x$mono_debugger_supported = xyes)
2303 if test "x$with_tls" = "x__thread"; then
2304 AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
2305 # Pass the information to libgc
2306 CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
2307 AC_MSG_CHECKING(if the tls_model attribute is supported)
2308 AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
2311 AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tld_model available])
2317 if test ${TARGET} = ARM && test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
2318 dnl ******************************************
2319 dnl *** Check to see what FPU is available ***
2320 dnl ******************************************
2321 AC_MSG_CHECKING(which FPU to use)
2323 AC_TRY_COMPILE([], [
2324 __asm__ ("ldfd f0, [r0]");
2325 ], fpu=FPA, fpu=NONE)
2328 CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
2332 if test ${TARGET} = unknown; then
2333 CPPFLAGS="$CPPFLAGS -DNO_PORT"
2334 AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
2337 if test ${ACCESS_UNALIGNED} = no; then
2338 CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
2343 # Pass CPPFLAGS to libgc configure
2344 # We should use a separate variable for this to avoid passing useless and
2345 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
2346 # This should be executed late so we pick up the final version of CPPFLAGS
2347 # The problem with this approach, is that during a reconfigure, the main
2348 # configure scripts gets invoked with these arguments, so we use separate
2349 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
2350 LIBGC_CPPFLAGS=$CPPFLAGS
2351 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
2352 LIBGC_CPPFLAGS=`echo $LIBGC_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
2354 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$LIBGC_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
2355 AC_CONFIG_SUBDIRS(libgc)
2359 #AC_ARG_WITH(profile2, [ --with-profile2=yes,no If you want to install the 2.0 FX (defaults to yes)], [], [with_profile2=yes])
2360 AC_ARG_WITH(profile4, [ --with-profile4=yes,no If you want to install the 4.0 FX (defaults to no)], [], [with_profile4=no])
2361 AC_ARG_WITH(moonlight, [ --with-moonlight=yes,no If you want to build the Moonlight 2.1 assemblies (defaults to yes)], [], [with_moonlight=yes])
2362 AC_ARG_WITH(monotouch, [ --with-monotouch=yes,no If you want to build the raw MonoTouch 2.1 assemblies (defaults to no)], [], [with_monotouch=no])
2365 AC_ARG_WITH(oprofile,[ --with-oprofile=no,<oprofile install dir> Enable oprofile support (defaults to no)],[
2366 if test x$with_oprofile != xno; then
2367 oprofile_include=$with_oprofile/include
2368 if test ! -f $oprofile_include/opagent.h; then
2369 AC_MSG_ERROR([oprofile include file not found at $oprofile_include/opagent.h])
2372 OPROFILE_CFLAGS="-I$oprofile_include"
2373 OPROFILE_LIBS="-L$with_oprofile/lib/oprofile -lopagent"
2374 AC_DEFINE(HAVE_OPROFILE,1,[Have oprofile support])
2379 AC_ARG_WITH(malloc_mempools,[ --with-malloc-mempools=yes,no Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
2380 if test x$with_malloc_mempools = xyes; then
2382 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
2388 AC_ARG_WITH(mcs_docs,[ --with-mcs-docs=yes,no If you want to build the documentation under mcs (defaults to yes)],[
2389 if test x$with_mcs_docs != xyes; then
2390 DISABLE_MCS_DOCS=yes
2395 dnl Consistency settings
2397 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
2398 DISABLE_MCS_DOCS=yes
2405 AM_CONDITIONAL(HAVE_OPROFILE, test x$OPROFILE = xyes)
2406 AC_SUBST(OPROFILE_CFLAGS)
2407 AC_SUBST(OPROFILE_LIBS)
2409 libmono_ldflags="$libmono_ldflags $LIBS"
2411 AM_CONDITIONAL(INSTALL_2_1, [test "x$with_moonlight" = xyes])
2412 AM_CONDITIONAL(INSTALL_4_0, [test "x$with_profile4" = xyes])
2413 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" = xyes])
2415 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
2416 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
2417 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
2418 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
2419 AM_CONDITIONAL(X86, test x$TARGET = xX86)
2420 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
2421 AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
2422 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
2423 AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
2424 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
2425 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
2426 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
2427 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
2428 AM_CONDITIONAL(S390, test x$TARGET = xS390)
2429 AM_CONDITIONAL(S390x, test x$TARGET = xS390x)
2430 AM_CONDITIONAL(HPPA, test x$TARGET = xHPPA)
2432 AM_CONDITIONAL(JIT_SUPPORTED, test x$JIT_SUPPORTED = xyes)
2433 AM_CONDITIONAL(INTERP_SUPPORTED, test x$interp_wanted = xtrue)
2434 AM_CONDITIONAL(INCLUDED_LIBGC, test x$gc = xincluded)
2441 AC_DEFINE_UNQUOTED(ARCHITECTURE,"$arch_target",[The architecture this is running on])
2442 AC_SUBST(arch_target)
2447 mono_build_root=`pwd`
2448 AC_SUBST(mono_build_root)
2450 if test x$USEJIT = xtrue; then
2451 mono_runtime=mono/mini/mono
2453 mono_runtime=mono/interpreter/mint
2455 AC_SUBST(mono_runtime)
2457 mono_cfg_root=$mono_build_root/runtime
2458 if test x$host_win32 = xyes; then
2459 if test "x$cross_compiling" = "xno"; then
2460 mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
2462 mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\\'`\\etc
2465 mono_cfg_dir=$mono_cfg_root/etc
2467 AC_SUBST(mono_cfg_dir)
2469 AC_CONFIG_FILES([po/mcs/Makefile.in])
2471 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
2472 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
2474 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
2477 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2479 *) reldir=$depth/$srcdir ;;
2481 $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
2482 cd runtime/etc/mono/1.0
2483 rm -f machine.config
2484 $LN_S $reldir/data/net_1_1/machine.config machine.config
2488 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
2491 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2493 *) reldir=$depth/$srcdir ;;
2495 $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
2496 cd runtime/etc/mono/2.0
2497 rm -f machine.config
2498 $LN_S $reldir/data/net_2_0/machine.config machine.config
2502 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
2505 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2507 *) reldir=$depth/$srcdir ;;
2509 $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
2510 cd runtime/etc/mono/2.0
2512 $LN_S $reldir/data/net_2_0/web.config web.config
2516 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
2519 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2521 *) reldir=$depth/$srcdir ;;
2523 $ac_aux_dir/install-sh -d runtime/etc/mono/
2524 cd runtime/etc/mono/
2526 $LN_S $reldir/data/browscap.ini browscap.ini
2530 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
2531 [ depth=../../../../..
2533 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2535 *) reldir=$depth/$srcdir ;;
2537 $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
2538 cd runtime/etc/mono/2.0/Browsers
2539 rm -f Compat.browser
2540 $LN_S $reldir/data/net_2_0/Browsers/Compat.browser Compat.browser
2544 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
2547 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2549 *) reldir=$depth/$srcdir ;;
2551 $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
2552 cd runtime/etc/mono/4.0
2553 rm -f machine.config
2554 $LN_S $reldir/data/net_4_0/machine.config machine.config
2558 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
2561 [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
2563 *) reldir=$depth/$srcdir ;;
2565 $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
2566 cd runtime/etc/mono/4.0
2568 $LN_S $reldir/data/net_4_0/web.config web.config
2572 if test x$enable_quiet_build = xyes; then
2573 AC_CONFIG_COMMANDS([quiet], [for i in `find mono libgc support -name Makefile.in | sed -e 's/Makefile.in/Makefile/g'`; do if test -f $i; then $srcdir/scripts/patch-quiet.sh $i; fi; done], [shell=$SHELL])
2574 AC_CONFIG_COMMANDS([quiet-libtool], [sed -e 's/$echo "copying selected/$show "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool; sed -e 's/$ECHO "copying selected/# "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool])
2581 scripts/mono-find-provides
2582 scripts/mono-find-requires
2585 mono/metadata/Makefile
2589 mono/arch/x86/Makefile
2590 mono/arch/amd64/Makefile
2591 mono/arch/hppa/Makefile
2592 mono/arch/ppc/Makefile
2593 mono/arch/sparc/Makefile
2594 mono/arch/s390/Makefile
2595 mono/arch/s390x/Makefile
2596 mono/arch/arm/Makefile
2597 mono/arch/alpha/Makefile
2598 mono/arch/ia64/Makefile
2599 mono/arch/mips/Makefile
2600 mono/interpreter/Makefile
2602 mono/tests/tests-config
2603 mono/tests/assemblyresolve/Makefile
2604 mono/tests/cas/Makefile
2605 mono/tests/cas/assembly/Makefile
2606 mono/tests/cas/demand/Makefile
2607 mono/tests/cas/inheritance/Makefile
2608 mono/tests/cas/linkdemand/Makefile
2609 mono/tests/cas/threads/Makefile
2610 mono/benchmark/Makefile
2611 mono/monograph/Makefile
2612 mono/io-layer/Makefile
2614 mono/profiler/Makefile
2615 ikvm-native/Makefile
2621 data/net_2_0/Makefile
2622 data/net_4_0/Makefile
2623 data/net_2_0/Browsers/Makefile
2628 data/mono-options.pc
2629 data/mono-lineeditor.pc
2636 data/system.web.extensions_1.0.pc
2637 data/system.web.extensions.design_1.0.pc
2638 data/system.web.mvc.pc
2643 tools/locale-builder/Makefile
2649 if test x$host_win32 = xyes; then
2650 # Get rid of 'cyg' prefixes in library names
2651 sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
2652 # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
2653 # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
2654 # executable doesn't work...
2655 sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
2660 NONE) prefix=$ac_default_prefix ;;
2662 case $exec_prefix in
2663 NONE) exec_prefix='${prefix}' ;;
2666 test -w $srcdir/$mcsdir/build || chmod +w $srcdir/$mcsdir/build
2669 # If we are cross compiling, we don't build in the mcs/ tree. Let us not clobber
2670 # any existing config.make. This allows people to share the same source tree
2671 # with different build directories, one native and one cross
2673 if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
2674 echo "prefix=$prefix" > $srcdir/$mcsdir/build/config.make
2675 echo "exec_prefix=$exec_prefix" >> $srcdir/$mcsdir/build/config.make
2676 echo "sysconfdir=$sysconfdir" >> $srcdir/$mcsdir/build/config.make
2677 echo 'mono_libdir=${exec_prefix}/lib' >> $srcdir/$mcsdir/build/config.make
2678 echo 'MCS_FLAGS = $(PLATFORM_DEBUG_FLAGS)' >> $srcdir/$mcsdir/build/config.make
2679 echo 'IL_FLAGS = /debug' >> $srcdir/$mcsdir/build/config.make
2680 echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $srcdir/$mcsdir/build/config.make
2681 echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $srcdir/$mcsdir/build/config.make
2683 [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
2684 *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
2687 echo "INSTALL = $mcs_INSTALL" >> $srcdir/$mcsdir/build/config.make
2690 [myver=$($AWK 'BEGIN {
2691 split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
2692 if(length(vsplit [1]) > 4) {
2693 split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
2695 print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
2698 echo "MONO_VERSION = $myver" >> $srcdir/$mcsdir/build/config.make
2701 if test x$platform_darwin = xyes; then
2702 echo "PLATFORM = darwin" >> $srcdir/$mcsdir/build/config.make
2705 if test x$TARGET = xAMD64 -a x$host_win32 = xno -a "x$AOT_SUPPORTED" = "xyes"; then
2706 echo "ENABLE_AOT = 1" >> $srcdir/$mcsdir/build/config.make
2709 # if we have an olive folder, override the default settings
2710 if test -d $olivedir; then
2712 test -w $srcdir/$olivedir/build || chmod +w $srcdir/$olivedir/build
2714 if test x$cross_compiling = xno && test x$enable_olive_build != xno; then
2715 echo "prefix=$prefix" > $srcdir/$olivedir/build/config.make
2716 echo "exec_prefix=$exec_prefix" >> $srcdir/$olivedir/build/config.make
2717 echo 'mono_libdir=${exec_prefix}/lib' >> $srcdir/$olivedir/build/config.make
2718 echo 'MCS_FLAGS = $(PLATFORM_DEBUG_FLAGS)' >> $srcdir/$olivedir/build/config.make
2719 echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $srcdir/$olivedir/build/config.make
2720 echo "MONO_VERSION = $myver" >> $srcdir/$olivedir/build/config.make
2721 if test x$with_moonlight = xyes; then
2722 echo "WITH_MOONLIGHT = yes" >> $srcdir/$olivedir/build/config.make
2727 if test x$DISABLE_MCS_DOCS = xyes; then
2728 echo "DISABLE_MCS_DOCS = yes" >> $srcdir/$mcsdir/build/config.make
2732 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
2735 mcs source: $mcs_topdir
2736 olive source: $olive_topdir
2741 SIGALTSTACK: $with_sigaltstack
2743 Moon Profile: $with_moonlight
2744 4.0 Alpha: $with_profile4
2745 MonoTouch: $with_monotouch
2746 JNI support: $jdk_headers_found
2747 libgdiplus: $libgdiplus_msg
2750 BigArrays: $enable_big_arrays
2751 DTrace: $enable_dtrace
2752 Parallel Mark: $enable_parallel_mark
2753 LLVM Back End: $enable_llvm
2757 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
2758 AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
2761 if test x$gc = xsgen; then
2763 echo IMPORTANT: You have selected an experimental, work-in-progress
2764 echo IMPORTANT: GC engine. This GC engine is currently not supported
2765 echo IMPORTANT: and is not yet ready for use.
2767 echo IMPORTANT: There are known problems with it, use at your own risk.
2770 if test x$enable_llvm = xyes; then
2772 echo IMPORTANT: The LLVM Back End is experimental and has known problems.