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AC_INIT(README)
AC_CANONICAL_SYSTEM

# Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
# The extra brackets are to foil regex-based scans.
m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])

AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(mono,1.1.18.1)
AM_MAINTAINER_MODE

AC_PROG_LN_S

# In case of cygwin, override LN_S, irrespective of what it determines.
# The build uses cygwin, but the actual runtime doesn't.
case $host_os in
*cygwin* ) LN_S='cp -p';;
esac


dnl
dnl libgc checks
dnl

gc_headers=no
gc=included
use_included_gc=no
libgc_configure_args=

if test -d $srcdir/libgc ; then
  gc_default=included
else
  gc_default=boehm
fi

#
# These are the flags that need to be stored in the mono.pc file for
# compiling code that will embed Mono
#
libmono_cflags=""
libmono_ldflags=""
AC_SUBST(libmono_cflags)
AC_SUBST(libmono_ldflags)

# Variable to have relocatable .pc files (lib, or lib64)
reloc_libdir=`basename ${libdir}`
AC_SUBST(reloc_libdir)


dnl if linker handles the version script
no_version_script=no

# Set to yes if Unix sockets cannot be created in an anonymous namespace
need_link_unlink=no

# Thread configuration inspired by sleepycat's db
AC_MSG_CHECKING([host platform characteristics])
libgc_threads=no
case "$host" in
*-*-mingw*|*-*-cygwin*)
platform_win32=yes
AC_DEFINE(PLATFORM_WIN32,1,[Platform is Win32])
if test "x$cross_compiling" = "xno"; then
CC="gcc -mno-cygwin -g"
# So libgc configure gets -mno-cygwin
export CC
fi
HOST_CC="gcc"
CPPFLAGS="$CPPFLAGS -DWIN32_THREADS -DFD_SETSIZE=1024"
libmono_cflags="-mno-cygwin"
libmono_ldflags="-mno-cygwin"
libdl=
libgc_threads=win32
gc_default=included
with_sigaltstack=no
LN_S=cp
# This forces libgc to use the DllMain based thread registration code on win32
libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
;;
*-*-*netbsd*)
platform_win32=no
CPPFLAGS="$CPPFLAGS -D_REENTRANT"
libmono_cflags="-D_REENTRANT"
LDFLAGS="$LDFLAGS -pthread"
CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
libmono_ldflags="-pthread"
need_link_unlink=yes
libdl=
libgc_threads=no
;;
# these flags will work for all versions of -STABLE
#
*-*-*freebsd4*)
platform_win32=no
if test "x$PTHREAD_CFLAGS" = "x"; then
CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_FREEBSD_THREADS"
libmono_cflags="-D_THREAD_SAFE"
else
CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
libmono_cflags="$PTHREAD_CFLAGS"
fi
if test "x$PTHREAD_LIBS" = "x"; then
LDFLAGS="$LDFLAGS -pthread"
libmono_ldflags="-pthread"
else
LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
libmono_ldflags="$PTHREAD_LIBS"
fi
CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD -DPLATFORM_BSD4"
need_link_unlink=yes
AC_DEFINE(PTHREAD_POINTER_ID)
libdl=
libgc_threads=pthreads
# TLS isn't implemented at all on 4-STABLE
with_tls=pthread
;;
*-*-*freebsd5*)
platform_win32=no
if test "x$PTHREAD_CFLAGS" = "x"; then
CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
libmono_cflags=
else
CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
libmono_cflags="$PTHREAD_CFLAGS"
fi
if test "x$PTHREAD_LIBS" = "x"; then
LDFLAGS="$LDFLAGS -pthread"
libmono_ldflags="-pthread"
else
LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
libmono_ldflags="$PTHREAD_LIBS"
fi
CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD -DPLATFORM_BSD5"
need_link_unlink=yes
AC_DEFINE(PTHREAD_POINTER_ID)
libdl=
with_sigaltstack=yes
libgc_threads=pthreads
# TLS is only partially implemented on 5-STABLE (compiler support
# but NOT library support)
#
with_tls=pthread
;;
*-*-*freebsd6*)
platform_win32=no
if test "x$PTHREAD_CFLAGS" = "x"; then
CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
libmono_cflags=
else
CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
libmono_cflags="$PTHREAD_CFLAGS"
fi
if test "x$PTHREAD_LIBS" = "x"; then
LDFLAGS="$LDFLAGS -pthread"
libmono_ldflags="-pthread"
else
LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
libmono_ldflags="$PTHREAD_LIBS"
fi
CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD -DPLATFORM_BSD6"
need_link_unlink=yes
AC_DEFINE(PTHREAD_POINTER_ID)
libdl=
libgc_threads=pthreads
with_sigaltstack=yes
# TLS is only partially implemented on -CURRENT (compiler support
# but NOT library support)
#
with_tls=pthread
;;
*-*-*openbsd*)
platform_win32=no
CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_FREEBSD_THREADS"
libmono_cflags="-D_THREAD_SAFE"
LDFLAGS="$LDFLAGS -pthread"
libmono_ldflags="-pthread"
need_link_unlink=yes
AC_DEFINE(PTHREAD_POINTER_ID)
libdl=
libgc_threads=pthreads
;;
*-*-linux*)
platform_win32=no
CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP"
libmono_cflags="-D_REENTRANT"
libmono_ldflags="-lpthread"
libdl="-ldl"
libgc_threads=pthreads
;;
*-*-hpux*)
        platform_win32=no
CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
CFLAGS="$CFLAGS +ESdbgasm"
LDFLAGS="$LDFLAGS -z"
libmono_cflags="-D_REENTRANT"
libmono_ldflags="-lpthread"
libgc_threads=pthreads
need_link_unlink=yes
;;
*-*-solaris*)
platform_win32=no
CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP"
need_link_unlink=yes
libmono_cflags="-D_REENTRANT"
libgc_threads=pthreads
# This doesn't seem to work on solaris/x86, but the configure test runs
with_tls=pthread
;;
*-*-darwin*)
platform_win32=no
CPPFLAGS="$CPPFLAGS -no-cpp-precomp -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX"
libmono_cflags="-D_THREAD_SAFE"
LDFLAGS="$LDFLAGS -pthread"
libmono_ldflags="-pthread"
need_link_unlink=yes
AC_DEFINE(PTHREAD_POINTER_ID)
AC_DEFINE(USE_MACH_SEMA)
no_version_script=yes
libdl=
libgc_threads=pthreads
;;
*)
AC_MSG_WARN([*** Please add $host to configure.in checks!])
platform_win32=no
libdl="-ldl"
;;
esac
AC_MSG_RESULT(ok)

if test x$need_link_unlink = xyes; then
   AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
fi

AM_CONDITIONAL(PLATFORM_WIN32, test x$platform_win32 = xyes)

AC_CHECK_TOOL(CC, gcc, gcc)
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_INSTALL
AC_PROG_AWK
dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
: ${CCAS='$(CC)'}
# Set ASFLAGS if not already set.
: ${CCASFLAGS='$(CFLAGS)'}
AC_SUBST(CCAS)
AC_SUBST(CCASFLAGS)

AC_CHECK_PROG(BISON, bison,yes,no)
if test "x$BISON" = "xno";
then
AC_MSG_ERROR([You need to install bison])
fi

dnl may require a specific autoconf version
dnl AC_PROG_CC_FOR_BUILD
dnl CC_FOR_BUILD not automatically detected
CC_FOR_BUILD=$CC
CFLAGS_FOR_BUILD=$CFLAGS
BUILD_EXEEXT=
if test "x$cross_compiling" = "xyes"; then
CC_FOR_BUILD=cc
CFLAGS_FOR_BUILD=
BUILD_EXEEXT=""
fi
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)
AC_SUBST(HOST_CC)
AC_SUBST(BUILD_EXEEXT)

AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])

# Set STDC_HEADERS
AC_HEADER_STDC
AC_LIBTOOL_WIN32_DLL
# This causes monodis to not link correctly
#AC_DISABLE_FAST_INSTALL
AM_PROG_LIBTOOL

# Test whenever ld supports -version-script
AC_PROG_LD
AC_PROG_LD_GNU
if test "x$lt_cv_prog_gnu_ld" = "xno"; then
   no_version_script=yes
fi

AM_CONDITIONAL(NO_VERSION_SCRIPT, test x$no_version_script = xyes)

AC_CHECK_HEADERS(sys/filio.h sys/sockio.h netdb.h utime.h semaphore.h sys/un.h linux/rtc.h sys/syscall.h)

AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])

AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)

# for mono/metadata/debug-symfile.c
AC_CHECK_HEADERS(elf.h)

# for support
AC_CHECK_HEADERS(poll.h)
AC_CHECK_HEADERS(sys/poll.h)
AC_CHECK_HEADERS(sys/wait.h)
AC_CHECK_HEADERS(grp.h)
AC_CHECK_HEADERS(syslog.h)

# for mono/dis
AC_CHECK_HEADERS(wchar.h)
case "$host" in
*-*-*freebsd6*)
AC_CHECK_HEADERS(ieeefp.h)
;;
*-*-*freebsd*)
/* Only freebsd6 has a working ieeefp.h */
;;
*)
AC_CHECK_HEADERS(ieeefp.h)
;;
esac
AC_MSG_CHECKING(for isinf)
AC_TRY_LINK([#include <math.h>], [
int f = isinf (1);
], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ISINF, 1, [isinf available])
], [
# We'll have to use signals
AC_MSG_RESULT(no)
])


# not 64 bit clean in cross-compile
AC_CHECK_SIZEOF(void *, 4)

WARN=''
if test x"$GCC" = xyes; then
        WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wcast-align -Wwrite-strings'
# The runtime code does not respect ANSI C strict aliasing rules
CFLAGS="$CFLAGS -fno-strict-aliasing"

ORIG_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Wdeclaration-after-statement"
AC_MSG_CHECKING(for -Wdeclaration-after-statement option to gcc)
AC_TRY_COMPILE([], [
void main () { }
], [
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
CFLAGS=$ORIG_CFLAGS
])
else
# The Sun Forte compiler complains about inline functions that access static variables
# so disable all inlining.
case "$host" in
*-*-solaris*)
CFLAGS="$CFLAGS -Dinline="
;;
esac
fi
CFLAGS="$CFLAGS -g $WARN"

# Where's the 'mcs' source tree?
if test -d $srcdir/mcs; then
  mcsdir=mcs
else
  mcsdir=../mcs
fi

mcs_topdir='$(top_srcdir)/'$mcsdir
mcs_topdir_from_srcdir='$(top_builddir)/'$mcsdir

## Maybe should also disable if mcsdir is invalid. Let's punt the issue for now.
AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno])

AC_SUBST([mcs_topdir])
AC_SUBST([mcs_topdir_from_srcdir])

AC_ARG_WITH([libgdiplus],
[ --with-libgdiplus=installed|sibling|<path> Override the libgdiplus used for System.Drawing tests (defaults to NO)],
[], [with_libgdiplus=installed])

case $with_libgdiplus in
no|installed) libgdiplus_loc= ;;
yes|sibling) libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la ;;
/*) libgdiplus_loc=$with_libgdiplus ;;
*) libgdiplus_loc=`pwd`/$with_libgdiplus ;;
esac
AC_SUBST([libgdiplus_loc])

AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
if test "x$PKG_CONFIG" = "xno"; then
AC_MSG_ERROR([You need to install pkg-config])
fi

pkg_config_path=
AC_ARG_WITH(crosspkgdir, [ --with-crosspkgdir=/path/to/pkg-config/dir],
if test x$with_crosspkgdir = "x"; then
if test -s $PKG_CONFIG_PATH; then
pkg_config_path=$PKG_CONFIG_PATH
fi
else
pkg_config_path=$with_crosspkgdir
PKG_CONFIG_PATH=$pkg_config_path
export PKG_CONFIG_PATH
fi
)

AC_ARG_WITH([glib],
[ --with-glib=embedded|system Choose glib API: system or embedded (default to system)],
[], [with_glib=system])

case $with_glib in
embedded)
  GLIB_CFLAGS='-I$(top_srcdir)/eglib/src'
  GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
  BUILD_GLIB_CFLAGS="$GLIB_CFLAGS"
  BUILD_GLIB_LIBS="$GLIB_LIBS"
  AC_CONFIG_SUBDIRS(eglib)
  ;;
system)
  BUILD_GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
  BUILD_GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`

  ## Versions of dependencies
  GLIB_REQUIRED_VERSION=1.3.11
  
  PKG_CHECK_MODULES(BASE_DEPENDENCIES, glib-2.0 >= $GLIB_REQUIRED_VERSION)
  
  GLIB_CFLAGS=`$PKG_CONFIG --cflags glib-2.0 gthread-2.0`
  GLIB_LIBS=`$PKG_CONFIG --libs glib-2.0 gthread-2.0`
  GMODULE_CFLAGS=`$PKG_CONFIG --cflags gmodule-2.0`
  GMODULE_LIBS=`$PKG_CONFIG --libs gmodule-2.0`
  ;;
*)
  AC_MSG_ERROR([Invalid argument to --with-glib.])
esac
AM_CONDITIONAL(EGLIB_BUILD, test x$with_glib = xembedded)
  
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)
AC_SUBST(GMODULE_CFLAGS)
AC_SUBST(GMODULE_LIBS)
AC_SUBST(BUILD_GLIB_CFLAGS)
AC_SUBST(BUILD_GLIB_LIBS)

if test x$cross_compiling$platform_win32 = xnoyes; then
   AC_MSG_CHECKING(for cygwin glib2-dev package)
   if [ cygcheck --f /usr/lib/libglib-2.0.dll.a | grep -q glib2-devel ]; then
      AC_MSG_RESULT(found)
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.])
   else
      AC_MSG_RESULT(not found, ok)
   fi

   AC_MSG_CHECKING(for broken gwin32.h)
   glib_include=`$PKG_CONFIG --cflags-only-I glib-2.0 | sed -e 's/ -I.*//g' | sed -e 's/-I//g'`
   if test -f $glib_include/glib/gwin32.h; then
if [ grep ftruncate $glib_include/glib/gwin32.h | grep -q define ]; then
AC_MSG_RESULT(failed)
hashmark='#'
AC_MSG_ERROR([Your version of gwin32.h is broken and will cause compilation errors when building mono. Please fix it by deleting the line: '$hashmark define ftruncate...' from '$glib_include/glib/gwin32.h' then re-run configure.])
fi
   fi
   AC_MSG_RESULT(ok)
fi

AC_ARG_WITH(gc, [ --with-gc=boehm,included,none],[gc=$with_gc],[gc=$gc_default])

# Enable support for fast thread-local storage
# Some systems have broken support, so we allow to disable it.
AC_ARG_WITH(tls, [ --with-tls=__thread,pthread select Thread Local Storage implementation],[],[with_tls=__thread])

# Enable support for using sigaltstack for SIGSEGV and stack overflow handling
# This does not work on some platforms (bug #55253)
AC_ARG_WITH(sigaltstack, [ --with-sigaltstack=yes,no enable/disable support for sigaltstack],[],[with_sigaltstack=no])

AC_ARG_WITH(static_mono, [ --with-static_mono=yes,no link mono statically to libmono (faster)],[],[with_static_mono=yes])

if test "x$enable_static" = "xno"; then
   with_static_mono=no
fi

if test "x$platform_win32" = "xyes"; then
   # Boehm GC requires the runtime to be in its own dll
   with_static_mono=no
fi

AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)

AC_ARG_WITH(xen_opt, [ --with-xen_opt=yes,no Enable Xen-specific behaviour],[],[with_xen_opt=yes])
if test "x$with_xen_opt" = "xyes"; then
AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
ORIG_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
AC_TRY_COMPILE([], [
void main () { }
], [
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
CFLAGS=$ORIG_CFLAGS
])
fi

DISABLED_FEATURES=none

AC_ARG_ENABLE(minimal, [ --enable-minimal=LIST drop support for LIST subsystems.
  LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug,
  reflection_emit, large_code, logging, com, ssa, generics.],
[
for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
eval "mono_feature_disable_$feature='yes'"
AC_MSG_NOTICE([Disabled support for feature: $feature])
done
DISABLED_FEATURES=$enable_minimal
disabled="Disabled: $enable_minimal"
],[])

AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])

if test "x$mono_feature_disable_aot" = "xyes"; then
AC_DEFINE(DISABLE_AOT, 1, [Disable AOT support])
fi

if test "x$mono_feature_disable_profiler" = "xyes"; then
AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
fi

if test "x$mono_feature_disable_decimal" = "xyes"; then
AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
fi

if test "x$mono_feature_disable_pinvoke" = "xyes"; then
AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
fi

if test "x$mono_feature_disable_debug" = "xyes"; then
AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
fi

if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
fi

if test "x$mono_feature_disable_large_code" = "xyes"; then
AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
fi

if test "x$mono_feature_disable_logging" = "xyes"; then
AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
fi

if test "x$mono_feature_disable_com" = "xyes"; then
AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
fi

if test "x$mono_feature_disable_ssa" = "xyes"; then
AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
fi

if test "x$mono_feature_disable_generics" = "xyes"; then
AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
fi

AC_MSG_CHECKING(for visibility __attribute__)
AC_TRY_COMPILE([], [
   void __attribute__ ((visibility ("hidden"))) doit (void) {}
   void main () { doit (); }
], [
   have_visibility_hidden=yes
   AC_MSG_RESULT(yes)
], [
   have_visibility_hidden=no
   AC_MSG_RESULT(no)
])

LIBGC_CFLAGS=
LIBGC_LIBS=
LIBGC_STATIC_LIBS=
libgc_dir=
case "x$gc" in
xboehm|xbohem|xyes)
AC_CHECK_HEADERS(gc.h gc/gc.h, gc_headers=yes)
AC_CHECK_LIB(gc, GC_malloc, found_boehm="yes",,$libdl)

if test "x$found_boehm" != "xyes"; then
AC_MSG_ERROR("GC requested but libgc not found! Install libgc or run configure with --with-gc=none.")
fi
if test "x$gc_headers" != "xyes"; then
AC_MSG_ERROR("GC requested but header files not found! You may need to install them by hand.")
fi

AC_DEFINE(HAVE_BOEHM_GC)
AC_SUBST(HAVE_BOEHM_GC)
LIBGC_LIBS="-lgc $libdl"
LIBGC_STATIC_LIBS="$LIBGC_LIBS"

# AC_CHECK_FUNCS does not work for some reason...
AC_CHECK_LIB(gc, GC_gcj_malloc, found_gcj_malloc="yes",,$libdl)
if test "x$found_gcj_malloc" = "xyes"; then
AC_DEFINE(HAVE_GC_GCJ_MALLOC)
AC_DEFINE_UNQUOTED(USED_GC_NAME, "System Boehm (with typed GC)", [GC description])
else
AC_DEFINE_UNQUOTED(USED_GC_NAME, "System Boehm (no typed GC)", [GC description])
fi
AC_CHECK_LIB(gc, GC_enable, found_gc_enable="yes",,$libdl)
if test "x$found_gc_enable" = "xyes"; then
AC_DEFINE(HAVE_GC_ENABLE)
fi
;;

xincluded)
AC_CONFIG_SUBDIRS(libgc)

# Pass CPPFLAGS to libgc configure
# Maybe we should use a separate variable for this to avoid passing useless and
# potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
export CPPFLAGS

found_boehm=yes
gc_headers=yes
use_included_gc=yes
libgc_dir=libgc

LIBGC_CFLAGS='-I$(top_srcdir)/libgc/include'
LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'

AC_DEFINE(HAVE_BOEHM_GC)
AC_SUBST(HAVE_BOEHM_GC)

AC_DEFINE(HAVE_GC_H)
AC_DEFINE(USE_INCLUDED_LIBGC)

# The included libgc contains GCJ support
AC_DEFINE(HAVE_GC_GCJ_MALLOC)
AC_DEFINE(HAVE_GC_ENABLE)
AC_DEFINE_UNQUOTED(USED_GC_NAME, "Included Boehm (with typed GC)", [GC description])
;;

xsgen)
found_boehm=no
gc_headers=no
use_included_gc=no
AC_DEFINE(HAVE_SGEN_GC,1,[Using the simple generational GC.])
AC_DEFINE(HAVE_MOVING_COLLECTOR,1,[The GC can move objects.])
AC_DEFINE(HAVE_WRITE_BARRIERS,1,[The GC needs write barriers.])
AC_DEFINE_UNQUOTED(USED_GC_NAME, "Simple generational", [GC description])
;;

xnone)
AC_MSG_WARN("Compiling mono without GC.")
AC_DEFINE_UNQUOTED(USED_GC_NAME, "none", [GC description])
AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
;;
*)
AC_MSG_ERROR([Invalid argument to --with-gc.])
;;
esac

AC_ARG_WITH(large-heap, [ --with-large-heap=yes,no Enable support for GC heaps larger than 3GB], [large_heap=$withval], [large_heap=no])
if test "x$large_heap" = "xyes"; then
   echo "FOO"
   CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
fi

# tell libgc/configure about what we want
ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args"

AM_CONDITIONAL(INCLUDED_LIBGC, test x$use_included_gc = xyes)
AC_SUBST(LIBGC_CFLAGS)
AC_SUBST(LIBGC_LIBS)
AC_SUBST(LIBGC_STATIC_LIBS)
AC_SUBST(libgc_dir)

dnl
dnl End of libgc checks
dnl

if test x$platform_win32 = xno; then

dnl ******************************************************************
dnl *** Checks for the IKVM JNI interface library ***
dnl ******************************************************************
AC_ARG_WITH(ikvm-native, [ --with-ikvm-native=yes,no build the IKVM JNI interface library],[with_ikvm_native=$withval],[with_ikvm_native=yes])

ikvm_native_dir=
if test x$with_ikvm_native = xyes; then
ikvm_native_dir=ikvm-native
jdk_headers_found="IKVM Native"
fi

AC_SUBST(ikvm_native_dir)

AC_CHECK_HEADERS(execinfo.h)

AC_CHECK_FUNCS(getgrgid_r)
AC_CHECK_FUNCS(getgrnam_r)
AC_CHECK_FUNCS(getpwnam_r)
AC_CHECK_FUNCS(getpwuid_r)
AC_CHECK_FUNCS(getresuid)
AC_CHECK_FUNCS(setresuid)
AC_CHECK_FUNCS(kqueue)
AC_CHECK_FUNCS(backtrace_symbols)
AC_CHECK_FUNCS(mkstemp)

dnl ******************************************************************
dnl *** Check for large file support ***
dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
dnl ******************************************************************

# Check that off_t can represent 2**63 - 1 correctly, working around
# potential compiler bugs. Defines LARGE_FILE_SUPPORT, adds $1 to
# CPPFLAGS and sets $large_offt to yes if the test succeeds
large_offt=no
AC_DEFUN([LARGE_FILES], [
large_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $1"
AC_TRY_RUN([
#include <sys/types.h>

#define BIG_OFF_T (((off_t)1<<62)-1+((off_t)1<<62))

int main(void) {
int big_off_t=((BIG_OFF_T%2147483629==721) &&
(BIG_OFF_T%2147483647==1));
if(big_off_t) {
exit(0);
} else {
exit(1);
}
}
], [
AC_MSG_RESULT(ok)
AC_DEFINE(HAVE_LARGE_FILE_SUPPORT)
large_CPPFLAGS="$large_CPPFLAGS $1"
large_offt=yes
], [
AC_MSG_RESULT(no)
], "")
CPPFLAGS=$large_CPPFLAGS
])

AC_MSG_CHECKING(if off_t is 64 bits wide)
LARGE_FILES("")
if test $large_offt = no; then
AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
LARGE_FILES("-D_FILE_OFFSET_BITS=64")
fi
if test $large_offt = no; then
AC_MSG_WARN([No 64 bit file size support available])
fi

dnl *****************************
dnl *** Checks for libsocket ***
dnl *****************************
AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")

dnl *******************************
dnl *** Checks for MSG_NOSIGNAL ***
dnl *******************************
AC_MSG_CHECKING(for MSG_NOSIGNAL)
AC_TRY_COMPILE([#include <sys/socket.h>], [
int f = MSG_NOSIGNAL;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_MSG_NOSIGNAL)
], [
# We'll have to use signals
AC_MSG_RESULT(no)
])

dnl *****************************
dnl *** Checks for SOL_IP ***
dnl *****************************
AC_MSG_CHECKING(for SOL_IP)
AC_TRY_COMPILE([#include <netdb.h>], [
int level = SOL_IP;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SOL_IP)
], [
# We'll have to use getprotobyname
AC_MSG_RESULT(no)
])

dnl *****************************
dnl *** Checks for SOL_IPV6 ***
dnl *****************************
AC_MSG_CHECKING(for SOL_IPV6)
AC_TRY_COMPILE([#include <netdb.h>], [
int level = SOL_IPV6;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SOL_IPV6)
], [
# We'll have to use getprotobyname
AC_MSG_RESULT(no)
])

dnl *****************************
dnl *** Checks for SOL_TCP ***
dnl *****************************
AC_MSG_CHECKING(for SOL_TCP)
AC_TRY_COMPILE([#include <netdb.h>], [
int level = SOL_TCP;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SOL_TCP)
], [
# We'll have to use getprotobyname
AC_MSG_RESULT(no)
])

dnl *****************************
dnl *** Checks for IP_PKTINFO ***
dnl *****************************
AC_MSG_CHECKING(for IP_PKTINFO)
AC_TRY_COMPILE([#include <netdb.h>], [
int level = IP_PKTINFO;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IP_PKTINFO)
], [
AC_MSG_RESULT(no)
])

dnl *****************************
    dnl *** Checks for IPV6_PKTINFO ***
    dnl *****************************
    AC_MSG_CHECKING(for IPV6_PKTINFO)
    AC_TRY_COMPILE([#include <netdb.h>], [
        int level = IPV6_PKTINFO;
    ], [
        # Yes, we have it...
        AC_MSG_RESULT(yes)
        AC_DEFINE(HAVE_IPV6_PKTINFO)
    ], [
        AC_MSG_RESULT(no)
    ])
 
dnl *********************************
dnl *** Check for struct ip_mreqn ***
dnl *********************************
AC_MSG_CHECKING(for struct ip_mreqn)
AC_TRY_COMPILE([#include <netinet/in.h>], [
struct ip_mreqn mreq;
mreq.imr_address.s_addr = 0;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STRUCT_IP_MREQN)
], [
# We'll just have to try and use struct ip_mreq
AC_MSG_RESULT(no)
AC_MSG_CHECKING(for struct ip_mreq)
AC_TRY_COMPILE([#include <netinet/in.h>], [
struct ip_mreq mreq;
mreq.imr_interface.s_addr = 0;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STRUCT_IP_MREQ)
], [
# No multicast support
AC_MSG_RESULT(no)
])
])

dnl **********************************
dnl *** Check for gethostbyname2_r ***
dnl **********************************
AC_MSG_CHECKING(for gethostbyname2_r)
AC_TRY_LINK([#include <netdb.h>], [
gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GETHOSTBYNAME2_R)
], [
AC_MSG_RESULT(no)
])

dnl *****************************
dnl *** Checks for libnsl ***
dnl *****************************
AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))

AC_CHECK_FUNCS(inet_pton inet_aton)

dnl ***********************************************
dnl *** Checks for size of sockaddr_un.sun_path ***
dnl ***********************************************
# AC_CHECK_SIZEOF can't cope with struct members :-(
AC_MSG_CHECKING(size of sockaddr_un.sun_path)
AC_CACHE_VAL(cv_mono_sizeof_sunpath,
[AC_TRY_RUN([
#include <sys/types.h>
#include <stdio.h>
#include <sys/un.h>

int main(void) {
struct sockaddr_un sock_un;
FILE *f=fopen("conftestval", "w");
if(!f) exit(1);
fprintf(f, "%d\n", sizeof(sock_un.sun_path));
exit(0);
}
], cv_mono_sizeof_sunpath=`cat conftestval`,
cv_mono_sizeof_sunpath=0,
cv_mono_sizeof_sunpath=0)])dnl
AC_MSG_RESULT($cv_mono_sizeof_sunpath)
AC_DEFINE_UNQUOTED(MONO_SIZEOF_SUNPATH, $cv_mono_sizeof_sunpath)

dnl *************************************
dnl *** Checks for zero length arrays ***
dnl *************************************
AC_MSG_CHECKING(whether $CC supports zero length arrays)
AC_TRY_COMPILE([
                struct s {
                        int length;
                        char data [0];
                };
        ], [], [
AC_MSG_RESULT(yes)
AC_DEFINE_UNQUOTED(MONO_ZERO_ARRAY_LENGTH, 0)
], [
AC_MSG_RESULT(no)
AC_DEFINE_UNQUOTED(MONO_ZERO_ARRAY_LENGTH, 1)
])

dnl *****************************
dnl *** Checks for libxnet ***
dnl *****************************
case "${host}" in
*solaris* )
AC_MSG_CHECKING(for Solaris XPG4 support)
if test -f /usr/lib/libxnet.so; then
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
            LIBS="$LIBS -lxnet"
   AC_MSG_RESULT(yes)
else
   AC_MSG_RESULT(no)
fi

if test "$GCC" = "yes"; then
CFLAGS="$CFLAGS -Wno-char-subscripts"
fi
     ;;
esac

dnl *****************************
dnl *** Checks for libpthread ***
dnl *****************************
# on FreeBSD -STABLE, the pthreads functions all reside in libc_r
# and libpthread does not exist
#
case "${host}" in
*-*-*freebsd4*)
AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
;;
*-*-*freebsd5*)
AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
;;
*-*-*freebsd6*)
AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
;;
*)
AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
;;
esac
AC_CHECK_HEADERS(pthread.h)
AC_CHECK_FUNCS(pthread_mutex_timedlock)
AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np)
AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
AC_TRY_COMPILE([ #include <pthread.h>], [
pthread_mutexattr_t attr;
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
], [
AC_MSG_RESULT(ok)
], [
AC_MSG_RESULT(no)
AC_MSG_WARN(Using mono_mutex_t for recursive mutexes)
AC_DEFINE(USE_MONO_MUTEX)
])
AC_CHECK_FUNCS(pthread_attr_setstacksize)
AC_CHECK_FUNCS(pthread_attr_getstack)
AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)

dnl ***********************************
dnl *** Checks for working __thread ***
dnl ***********************************
AC_MSG_CHECKING(for working __thread)
if test "x$with_tls" != "x__thread"; then
AC_MSG_RESULT(disabled)
else
AC_TRY_RUN([
#include <pthread.h>
__thread int i;
static int res1, res2;

void thread_main (void *arg)
{
i = arg;
sleep (1);
if (arg == 1)
res1 = (i == arg);
else
res2 = (i == arg);
}

int main () {
pthread_t t1, t2;

i = 5;

pthread_create (&t1, NULL, thread_main, 1);
pthread_create (&t2, NULL, thread_main, 2);

pthread_join (t1, NULL);
pthread_join (t2, NULL);

return !(res1 + res2 == 2);
}
], [
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
with_tls=pthread
])
fi

dnl **************************************
dnl *** Checks for working sigaltstack ***
dnl **************************************
AC_MSG_CHECKING(for working sigaltstack)
if test "x$with_sigaltstack" != "xyes"; then
AC_MSG_RESULT(disabled)
else
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
#include <sys/wait.h>
#if defined(__FreeBSD__) || defined(__NetBSD__)
#define SA_STACK SA_ONSTACK
#endif
static void
sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
{
exit (0);
}

static void *
loop (void *ignored)
{
char *ptr = NULL;

*ptr = 0;
return NULL;
}

static void
child ()
{
struct sigaction sa;
struct sigaltstack sas;
pthread_t id;
pthread_attr_t attr;

sa.sa_sigaction = sigsegv_signal_handler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
if (sigaction (SIGSEGV, &sa, NULL) == -1) {
perror ("sigaction");
return;
}

sas.ss_sp = malloc (SIGSTKSZ);
sas.ss_size = SIGSTKSZ;
sas.ss_flags = 0;
if (sigaltstack (&sas, NULL) == -1) {
perror ("sigaltstack");
return;
}

pthread_attr_init (&attr);
if (pthread_create(&id, &attr, loop, &attr) != 0) {
printf ("pthread_create\n");
return;
}

sleep (100);
}

int
main ()
{
pid_t son;
int status;
int i;

son = fork ();
if (son == -1) {
return 1;
}

if (son == 0) {
child ();
return 0;
}

for (i = 0; i < 3; ++i) {
sleep (1);
waitpid (son, &status, WNOHANG);
if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
return 0;
}

kill (son, SIGKILL);
return 1;
}

], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_WORKING_SIGALTSTACK)
], [
with_sigaltstack=no
AC_MSG_RESULT(no)
])
fi

dnl ********************************
dnl *** Checks for semaphore lib ***
dnl ********************************
# 'Real Time' functions on Solaris
# posix4 on Solaris 2.6
# pthread (first!) on Linux
AC_SEARCH_LIBS(sem_init, pthread rt posix4)

dnl ********************************
dnl *** Checks for timezone stuff **
dnl ********************************
AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
AC_TRY_COMPILE([
#include <time.h>
], [
struct tm tm;
tm.tm_gmtoff = 1;
], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
if test $ac_cv_struct_tm_gmtoff = yes; then
AC_DEFINE(HAVE_TM_GMTOFF)
else
AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
AC_TRY_COMPILE([
#include <time.h>
], [
timezone = 1;
], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
if test $ac_cv_var_timezone = yes; then
AC_DEFINE(HAVE_TIMEZONE)
else
AC_ERROR(unable to find a way to determine timezone)
fi
fi

dnl *********************************
dnl *** Checks for math functions ***
dnl *********************************
        LIBS="$LIBS -lm";
        AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
                AC_TRY_LINK([#include <math.h>],
                [ finite(0.0); ],
                AC_DEFINE(HAVE_FINITE) AC_MSG_RESULT(yes),
                AC_MSG_RESULT(no)))
        AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
                AC_TRY_LINK([#include <math.h>],
                [ isfinite(0.0); ],
                AC_DEFINE(HAVE_ISFINITE) AC_MSG_RESULT(yes),
                AC_MSG_RESULT(no)))

dnl ****************************************************************
dnl *** Checks for working poll() (macosx defines it but doesn't ***
dnl *** have it in the library (duh)) ***
dnl ****************************************************************
AC_CHECK_FUNCS(poll)

dnl *************************
dnl *** Check for signbit ***
dnl *************************
AC_MSG_CHECKING(for signbit)
AC_TRY_LINK([#include <math.h>], [
int s = signbit(1.0);
], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SIGNBIT)
], [
AC_MSG_RESULT(no)
])

dnl **********************************
dnl *** epoll ***
dnl **********************************
AC_CHECK_HEADERS(sys/epoll.h)
haveepoll=no
AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes" ; then
AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
fi

dnl ******************************
dnl *** Checks for SIOCGIFCONF ***
dnl ******************************
AC_CHECK_HEADERS(sys/ioctl.h)
AC_CHECK_HEADERS(net/if.h)
AC_MSG_CHECKING(for ifreq)
AC_TRY_COMPILE([
#include <sys/ioctl.h>
#include <net/if.h>
], [
struct ifconf ifc;
struct ifreq *ifr;
void *x;
ifc.ifc_len = 0;
ifc.ifc_buf = NULL;
x = (void *) &ifr->ifr_addr;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
], [
AC_MSG_RESULT(no)
])
dnl **********************************
dnl *** Checks for MonoPosixHelper ***
dnl **********************************
AC_CHECK_HEADERS(checklist.h)
AC_CHECK_HEADERS(fstab.h)
AC_CHECK_HEADERS(attr/xattr.h)
AC_CHECK_HEADERS(sys/extattr.h)
AC_CHECK_HEADERS(sys/sendfile.h)
AC_CHECK_HEADERS(sys/statvfs.h)
AC_CHECK_HEADERS(sys/vfstab.h)
AC_CHECK_HEADERS(sys/xattr.h)
AC_CHECK_HEADERS(sys/mman.h)
AC_CHECK_FUNCS(getdomainname)
AC_CHECK_FUNCS(setdomainname)
AC_CHECK_FUNCS(fgetgrent)
AC_CHECK_FUNCS(fgetpwent)
AC_CHECK_FUNCS(fgetpwent)
AC_CHECK_FUNCS(getfsstat)
AC_CHECK_FUNCS(lutimes)
AC_CHECK_FUNCS(mremap)
AC_CHECK_FUNCS(remap_file_pages)
AC_CHECK_FUNCS(posix_fadvise)
AC_CHECK_FUNCS(posix_fallocate)
AC_CHECK_FUNCS(posix_madvise)
AC_CHECK_FUNCS(vsnprintf)
AC_CHECK_FUNCS(sendfile)
AC_CHECK_FUNCS(sethostid)
AC_CHECK_FUNCS(statfs)
AC_CHECK_FUNCS(fstatfs)
AC_CHECK_FUNCS(statvfs)
AC_CHECK_FUNCS(fstatvfs)
AC_CHECK_FUNCS(stime)
AC_CHECK_FUNCS(strerror_r)
AC_CHECK_FUNCS(ttyname_r)
AC_CHECK_SIZEOF(size_t)
AC_CHECK_MEMBERS(
[struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,,
[#include <sys/types.h>
#include <dirent.h>])

dnl Favour xattr through glibc, but use libattr if we have to
AC_CHECK_FUNC(lsetxattr, ,
AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
)
AC_SUBST(XATTR_LIB)

dnl *********************************
dnl *** Check for Console 2.0 I/O ***
dnl *********************************
AC_CHECK_HEADERS([curses.h])
AC_CHECK_HEADERS([term.h], [], [],
[#if HAVE_CURSES_H
#include <curses.h>
#endif
])
AC_CHECK_HEADERS([termios.h])

dnl * This is provided in io-layer, but on windows it's only available
dnl * on xp+
AC_DEFINE(HAVE_GETPROCESSID, 1, [Define if GetProcessId is available])
else
jdk_headers_found=no
AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))

dnl *********************************
dnl *** Check for struct ip_mreqn ***
dnl *********************************
AC_MSG_CHECKING(for struct ip_mreqn)
AC_TRY_COMPILE([#include <ws2tcpip.h>], [
struct ip_mreqn mreq;
mreq.imr_address.s_addr = 0;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STRUCT_IP_MREQN)
], [
# We'll just have to try and use struct ip_mreq
AC_MSG_RESULT(no)
AC_MSG_CHECKING(for struct ip_mreq)
AC_TRY_COMPILE([#include <ws2tcpip.h>], [
struct ip_mreq mreq;
mreq.imr_interface.s_addr = 0;
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_STRUCT_IP_MREQ)
], [
# No multicast support
AC_MSG_RESULT(no)
])
])
AC_CHECK_FUNCS(GetProcessId)
fi

dnl socklen_t check
AC_MSG_CHECKING(for socklen_t)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
],[
  socklen_t foo;
],[
ac_cv_c_socklen_t=yes
AC_DEFINE(HAVE_SOCKLEN_T)
AC_MSG_RESULT(yes)
],[
AC_MSG_RESULT(no)
])

AC_MSG_CHECKING(for array element initalizer support)
AC_TRY_COMPILE([#include <sys/socket.h>], [
const int array[] = {[1] = 2,};
], [
# Yes, we have it...
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
], [
# We'll have to use signals
AC_MSG_RESULT(no)
])

AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
# Simply calling trunc (0.0) is no good since gcc will optimize the call away
AC_TRY_LINK([#include <math.h>],
[ static void *p = &trunc; ],
[
AC_DEFINE(HAVE_TRUNC)
AC_MSG_RESULT(yes)
ac_cv_trunc=yes
],
AC_MSG_RESULT(no)))

if test "x$ac_cv_truncl" != "xyes"; then
   AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL) LIBS="$LIBS -lsunmath"])
fi

dnl ****************************
dnl *** Look for /dev/random ***
dnl ****************************

AC_MSG_CHECKING([if usage of random device is requested])
AC_ARG_ENABLE(dev-random,
[ --disable-dev-random disable the use of the random device],
try_dev_random=$enableval, try_dev_random=yes)
AC_MSG_RESULT($try_dev_random)

case "{$target}" in
    *-openbsd*)
    NAME_DEV_RANDOM="/dev/srandom"
    ;;

dnl Win32 does not have /dev/random, they have their own method...

    *-*-mingw*|*-*-cygwin*)
    ac_cv_have_dev_random=no
    ;;

dnl Everywhere else, it's /dev/random

    *)
    NAME_DEV_RANDOM="/dev/random"
    ;;
esac

AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM")

dnl Now check if the device actually exists

if test "x$try_dev_random" = "xyes"; then
    AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
    [if test -r "$NAME_DEV_RANDOM" ; then
        ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
    if test "x$ac_cv_have_dev_random" = "xyes"; then
        AC_DEFINE(HAVE_CRYPT_RNG)
    fi
else
    AC_MSG_CHECKING(for random device)
    ac_cv_have_dev_random=no
    AC_MSG_RESULT(has been disabled)
fi

if test "x$platform_win32" = "xyes"; then
    AC_DEFINE(HAVE_CRYPT_RNG)
fi

if test "x$ac_cv_have_dev_random" = "xno" \
    && test "x$platform_win32" = "xno"; then
    AC_MSG_WARN([[
***
*** A system-provided entropy source was not found on this system.
*** Because of this, the System.Security.Cryptography random number generator
*** will throw a NotImplemented exception.
***
*** If you are seeing this message, and you know your system DOES have an
*** entropy collection in place, please contact <crichton@gimp.org> and
*** provide information about the system and how to access the random device.
***
*** Otherwise you can install either egd or prngd and set the environment
*** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
***]])
fi
 
AC_MSG_CHECKING([if inter-process shared handles are requested])
AC_ARG_ENABLE(shared-handles, [ --disable-shared-handles disable inter-process shared handles], try_shared_handles=$enableval, try_shared_handles=yes)
AC_MSG_RESULT($try_shared_handles)
if test "x$try_shared_handles" != "xyes"; then
AC_DEFINE(DISABLE_SHARED_HANDLES)
AC_SUBST(DISABLE_SHARED_HANDLES)
fi

AC_ARG_ENABLE(nunit-tests, [ --enable-nunit-tests Run the nunit tests of the class library on 'make check'])
AM_CONDITIONAL(ENABLE_NUNIT_TESTS, [test x$enable_nunit_tests = xyes])

TARGET="unknown"
ACCESS_UNALIGNED="yes"

JIT_SUPPORTED=no
INTERP_SUPPORTED=no
LIBC="libc.so.6"
INTL="libc.so.6"
SQLITE="libsqlite.so.0"
SQLITE3="libsqlite3.so.0"
X11="libX11.so"

jit_wanted=false
interp_wanted=false
case "$host" in
# mips-sgi-irix5.* | mips-sgi-irix6.*)
# TARGET=MIPS;
# ACCESS_UNALIGNED="no"
# ;;
i*86-*-*)
TARGET=X86;
arch_target=x86;
JIT_SUPPORTED=yes
jit_wanted=true
case $host_os in
solaris*)
LIBC="libc.so"
INTL="libintl.so"

# On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
# int astruct __attribute__ ((visibility ("hidden")));
# void foo ()
# {
# void *p = &astruct;
# }
# gcc -fPIC --shared -o libfoo.so foo.c
# yields:
# foo.c:6: warning: visibility attribute not supported in this configuration; ignored
# ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
have_visibility_hidden=no

libmono_ldflags="$libmono_ldflags $LIBS"
esac
;;
x86_64-*-* | amd64-*-*)
TARGET=AMD64;
arch_target=amd64;
JIT_SUPPORTED=yes
jit_wanted=true
;;
ia64-*-*)
TARGET=IA64
arch_target=ia64
ACCESS_UNALIGNED="no"
JIT_SUPPORTED=yes
jit_wanted=true
LIBC="libc.so.6.1"
INTL="libc.so.6.1"
AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
libmono_ldflags="-lunwind"
;;
sparc*-*-*)
if test "x$ac_cv_sizeof_void_p" = "x8"; then
TARGET=SPARC64
else
TARGET=SPARC
fi
arch_target=sparc;
JIT_SUPPORTED=yes
ACCESS_UNALIGNED="no"
case $host_os in
linux*) ;;
*)
LIBC="libc.so"
INTL="libintl.so"
libmono_ldflags="$libmono_ldflags $LIBS"
esac
jit_wanted=true
if test x"$GCC" = xyes; then
# We don't support v8 cpus
CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
fi
if test x"$AR" = xfalse; then
AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
fi
;;
       alpha*-*-linux* | alpha*-*-osf*)
TARGET=ALPHA;
ACCESS_UNALIGNED="no"
JIT_SUPPORTED=yes
jit_wanted=true
arch_target=alpha;
CFLAGS="$CFLAGS -mieee"
case $host_os in
linux*)
LIBC="libc.so.6.1"
INTL="libc.so.6.1"
esac
;;
*-*-mingw*|*-*-cygwin*)
INTL="intl"
;;
hppa2.0w-hp-hpux11.00 | hppa64-hp-hpux11.00)
TARGET=HPPA;
arch_target=hppa;
LIBC="libc.sl"
ACCESS_UNALIGNED="no"
INTERP_SUPPORTED=yes
interp_wanted=true
;;
hppa*linux*)
TARGET=HPPA;
arch_target=hppa;
ACCESS_UNALIGNED="no"
INTERP_SUPPORTED=yes
interp_wanted=true
;;
macppc-*-openbsd* | powerpc-*-linux* | powerpc-*-openbsd* | \
        powerpc-*-sysv* | powerpc-*-darwin*)
TARGET=POWERPC;
AC_DEFINE(MONO_ARCH_REGPARMS,1,[Architecture uses registers for Parameters])
arch_target=ppc;
JIT_SUPPORTED=yes
jit_wanted=true
;;
arm*-linux*)
TARGET=ARM;
arch_target=arm;
ACCESS_UNALIGNED="no"
JIT_SUPPORTED=yes
jit_wanted=true
;;
s390-*-linux*)
TARGET=S390;
AC_DEFINE(MONO_ARCH_REGPARMS,1,[Architecture uses registers for Parameters])
arch_target=s390;
ACCESS_UNALIGNED="no"
JIT_SUPPORTED=yes
jit_wanted=true
# Required CFLAGS for s390[x]. USE_STRING_INLINES is automatic with gcc 4.1
CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
;;
s390x-*-linux*)
TARGET=S390x;
AC_DEFINE(MONO_ARCH_REGPARMS,1,[Architecture uses registers for Parameters])
arch_target=s390x;
ACCESS_UNALIGNED="no"
JIT_SUPPORTED=yes
jit_wanted=true
CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
;;
esac

if test "x$have_visibility_hidden" = "xyes"; then
   AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
fi

AC_ARG_WITH(jit, [ --with-jit=yes,no If you want to build scripts that default to the JIT],[
if test x$withval = xyes; then
jit_wanted=true
else
jit_wanted=false
fi
])

AC_ARG_WITH(interp, [ --with-interp=yes,no If you want to build scripts that default to the interpreter],[
if test x$withval = xyes; then
interp_wanted=true
else
interp_wanted=false
fi
])

USEJIT=false
if test x$JIT_SUPPORTED = xyes; then
   if $jit_wanted; then
      USEJIT=true
      jit_status="Building and using the JIT"
   else
      if $interp_wanted; then
         jit_status="Building the JIT, defaulting to the interpreter"
      else
         AC_ERROR(No JIT or interpreter support available or selected.)
      fi
   fi
else
   if test x$interp_wanted = xtrue; then
      jit_status="interpreter"
   else
      AC_ERROR(No JIT or interpreter support available or selected.)
   fi
fi

AM_CONDITIONAL(USE_JIT, test x$USEJIT = xtrue)

libsuffix=".so"

case "$host" in
     *-*-darwin*)
libsuffix=".dylib"
LIBC="libc.dylib"
INTL="libintl.dylib"
SQLITE="libsqlite.0.dylib"
SQLITE3="libsqlite3.0.dylib"
X11="libX11.dylib"
;;
     *-*-*netbsd*)
LIBC="libc.so.12"
INTL="libintl.so.0"
;;
    *-*-*freebsd*)
     LIBC="libc.so"
INTL="libintl.so"
;;
    *-*-*openbsd*)
     LIBC="libc.so"
INTL="libintl.so"
;;
    *-*-*linux*)
AC_PATH_X
AC_MSG_CHECKING(for the soname of libX11.so)
for i in $x_libraries /usr/lib /usr/lib64; do
for r in 4 5 6; do
if test -f $i/libX11.so.$r; then
X11=libX11.so.$r
AC_MSG_RESULT($X11)
fi
done
done

if test "x$X11" = "xlibX11.so"; then
AC_MSG_WARN([Could not find X development libs. Do you have the -devel package installed? WinForms may not work...]);
fi
;;
esac


AC_SUBST(libsuffix)

if test "x$TARGET" != "xAMD64"; then
   # valgrind headers don't compile under x86-64
   AC_CHECK_HEADERS(valgrind/memcheck.h)
fi

if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
if test "x$with_tls" = "x__thread"; then
#
# On some linux distributions, TLS works in executables, but linking
# against a shared library containing TLS fails with:
# undefined reference to `__tls_get_addr'
#
rm -f conftest.c conftest.so conftest
echo "static __thread int foo; void main () { foo = 5; }" > conftest.c
$CC -fPIC --shared -o conftest.so conftest.c > /dev/null 2>&1
$CC -o conftest conftest.so > /dev/null 2>&1
if test ! -f conftest; then
AC_MSG_WARN([Disabling usage of __thread.]);
with_tls=pthread
fi
rm -f conftest.c conftest.so conftest
fi
fi

mono_debugger_supported=no
if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
if test x$use_included_gc = xyes; then
case "$host" in
*-*-*linux*)
mono_debugger_supported=yes
;;
esac
fi
fi

AC_MSG_CHECKING(if the Mono Debugger is supported on this platform)
if test "x$mono_debugger_supported" = "xyes"; then
AC_DEFINE(MONO_DEBUGGER_SUPPORTED,1,[The Mono Debugger is supported on this platform])
fi
AC_MSG_RESULT($mono_debugger_supported)
AM_CONDITIONAL(MONO_DEBUGGER_SUPPORTED, test x$mono_debugger_supported = xyes)

if test "x$with_tls" = "x__thread"; then
AC_DEFINE(HAVE_KW_THREAD)
# Pass the information to libgc
CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
AC_MSG_CHECKING(if the tls_model attribute is supported)
AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tld_model available])
], [
AC_MSG_RESULT(no)
])
fi

if test ${TARGET} = ARM; then
dnl ******************************************
dnl *** Check to see what FPU is available ***
dnl ******************************************
AC_MSG_CHECKING(which FPU to use)

AC_TRY_COMPILE([], [
__asm__ ("ldfd f0, [r0]");
], fpu=FPA, [
AC_TRY_COMPILE([], [
__asm__ ("fldd d0, [r0]");
], fpu=VFP, fpu=NONE)
])

AC_MSG_RESULT($fpu)
CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu"
unset fpu
fi

if test ${TARGET} = unknown; then
CPPFLAGS="$CPPFLAGS -DNO_PORT"
AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
fi

if test ${ACCESS_UNALIGNED} = no; then
CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
fi

PREVIEW=yes
AC_ARG_WITH(preview, [ --with-preview=yes,no If you want to install the 2.0 FX preview],[
if test x$with_preview = xno; then
PREVIEW=no
fi
])

AM_CONDITIONAL(INSTALL_2_0, test x$PREVIEW = xyes)

AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
AM_CONDITIONAL(X86, test x$TARGET = xX86)
AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
AM_CONDITIONAL(ARM, test x$TARGET = xARM)
AM_CONDITIONAL(S390, test x$TARGET = xS390)
AM_CONDITIONAL(S390x, test x$TARGET = xS390x)
AM_CONDITIONAL(HPPA, test x$TARGET = xHPPA)

AM_CONDITIONAL(JIT_SUPPORTED, test x$JIT_SUPPORTED = xyes)
AM_CONDITIONAL(INTERP_SUPPORTED, test x$interp_wanted = xtrue)
AM_CONDITIONAL(INCLUDED_LIBGC, test x$gc = xincluded)

AC_SUBST(LIBC)
AC_SUBST(INTL)
AC_SUBST(SQLITE)
AC_SUBST(SQLITE3)
AC_SUBST(X11)

AC_SUBST(arch_target)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LDFLAGS)

mono_build_root=`pwd`
AC_SUBST(mono_build_root)

if test x$USEJIT = xtrue; then
  mono_runtime=mono/mini/mono
else
  mono_runtime=mono/interpreter/mint
fi
AC_SUBST(mono_runtime)

mono_cfg_root=$mono_build_root/runtime
if test x$platform_win32 = xyes; then
  mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
else
  mono_cfg_dir=$mono_cfg_root/etc
fi
AC_SUBST(mono_cfg_dir)

AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
AC_CONFIG_FILES([runtime/semdel-wrapper],[chmod +x runtime/semdel-wrapper])

AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
[ depth=../../../..
    case $srcdir in
    [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
    .) reldir=$depth ;;
    *) reldir=$depth/$srcdir ;;
    esac
    $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
    cd runtime/etc/mono/1.0
    rm -f machine.config
    $LN_S $reldir/data/net_1_1/machine.config machine.config
    cd $depth
],[LN_S='$LN_S'])

AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
[ depth=../../../..
    case $srcdir in
    [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
    .) reldir=$depth ;;
    *) reldir=$depth/$srcdir ;;
    esac
    $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
    cd runtime/etc/mono/2.0
    rm -f machine.config
    $LN_S $reldir/data/net_2_0/machine.config machine.config
    cd $depth
],[LN_S='$LN_S'])

AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
[ depth=../../../..
    case $srcdir in
    [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
    .) reldir=$depth ;;
    *) reldir=$depth/$srcdir ;;
    esac
    $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
    cd runtime/etc/mono/2.0
    rm -f web.config
    $LN_S $reldir/data/net_2_0/web.config web.config
    cd $depth
],[LN_S='$LN_S'])

AC_OUTPUT([
Makefile
mint.pc
mono.pc
mono-cairo.pc
dotnet.pc
mono-uninstalled.pc
scripts/mono-nunit.pc
scripts/mono-find-provides
scripts/mono-find-requires
mono/Makefile
mono/utils/Makefile
mono/metadata/Makefile
mono/dis/Makefile
mono/cil/Makefile
mono/arch/Makefile
mono/os/Makefile
mono/arch/x86/Makefile
mono/arch/amd64/Makefile
mono/arch/hppa/Makefile
mono/arch/ppc/Makefile
mono/arch/sparc/Makefile
mono/arch/s390/Makefile
mono/arch/s390x/Makefile
mono/arch/arm/Makefile
mono/arch/alpha/Makefile
mono/arch/ia64/Makefile
mono/interpreter/Makefile
mono/tests/Makefile
mono/tests/tests-config
mono/tests/cas/Makefile
mono/tests/cas/assembly/Makefile
mono/tests/cas/demand/Makefile
mono/tests/cas/inheritance/Makefile
mono/tests/cas/linkdemand/Makefile
mono/tests/cas/threads/Makefile
mono/benchmark/Makefile
mono/monoburg/Makefile
mono/monograph/Makefile
mono/io-layer/Makefile
mono/mini/Makefile
mono/profiler/Makefile
ikvm-native/Makefile
scripts/Makefile
man/Makefile
web/Makefile
docs/Makefile
data/Makefile
data/net_1_1/Makefile
data/net_2_0/Makefile
samples/Makefile
support/Makefile
data/config
tools/Makefile
tools/locale-builder/Makefile
runtime/Makefile
])

if test x$platform_win32 = xyes; then
   # Get rid of 'cyg' prefixes in library names
   sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
   # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
   # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
   # executable doesn't work...
   sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
fi

(
  case $prefix in
  NONE) prefix=$ac_default_prefix ;;
  esac
  case $exec_prefix in
  NONE) exec_prefix='${prefix}' ;;
  esac

  test -w $srcdir/$mcsdir/build || chmod +w $srcdir/$mcsdir/build

  #
  # If we are cross compiling, we don't build in the mcs/ tree. Let us not clobber
  # any existing config.make. This allows people to share the same source tree
  # with different build directories, one native and one cross
  #
  if test x$cross_compiling = xno; then
    echo "prefix=$prefix" > $srcdir/$mcsdir/build/config.make
    echo "exec_prefix=$exec_prefix" >> $srcdir/$mcsdir/build/config.make
    echo 'mono_libdir=${exec_prefix}/lib' >> $srcdir/$mcsdir/build/config.make
    echo 'MCS_FLAGS = $(PLATFORM_DEBUG_FLAGS)' >> $srcdir/$mcsdir/build/config.make
    echo 'IL_FLAGS = /debug' >> $srcdir/$mcsdir/build/config.make
    echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $srcdir/$mcsdir/build/config.make
    echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $srcdir/$mcsdir/build/config.make

    case $INSTALL in
    [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
    *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
    esac

    echo "INSTALL = $mcs_INSTALL" >> $srcdir/$mcsdir/build/config.make

    export VERSION
    [myver=$($AWK 'BEGIN {
      split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
      print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
    }')]

    echo "MONO_VERSION = $myver" >> $srcdir/$mcsdir/build/config.make
  fi
)

libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}

echo "
        mcs source: $mcs_topdir
GC: $gc
TLS: $with_tls
SIGALTSTACK: $with_sigaltstack
Engine: $jit_status
2.0 Alpha: $PREVIEW
JNI support: $jdk_headers_found
libgdiplus: $libgdiplus_msg
$disabled

"
if test x$with_static_mono = xno -a "x$platform_win32" != "xyes"; then
   AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexepcted bugs)
fi

if test x$have_zlib = xno; then
   AC_MSG_WARN(ZLib devel files not available, compression file support in 2.0 won't work.)
fi

if test x$gc = xsgen; then
        echo IMPORTANT:
echo IMPORTANT: You have selected an experimental, work-in-progress
echo IMPORTANT: GC engine. This GC engine is currently not supported
echo IMPORTANT: and is not yet ready for use.
echo IMPORTANT:
echo IMPORTANT: There are known problems with it, use at your own risk.
fi
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