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719f0fde70
gcc/libjava/configure.in
Anthony Green 13094d1293 Fix cross builds. 
From-SVN: r42497
2001-05-23 17:13:27 +00:00

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dnl Process this with autoconf to create configure
AC_INIT(java/lang/System.java)
dnl Can't be done in LIBGCJ_CONFIGURE because that confuses automake.
AC_CONFIG_AUX_DIR(..)
AC_CANONICAL_SYSTEM
AC_PROG_LN_S
dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR
configuring in a subdirectory])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
LIBGCJ_CONFIGURE(.)
AM_CONFIG_HEADER(include/config.h)
# Only use libltdl for native builds.
if test -z "${with_cross_host}"; then
AC_LIBLTDL_CONVENIENCE
AC_LIBTOOL_DLOPEN
DIRLTDL=libltdl
AC_DEFINE(USE_LTDL)
# Sigh. Libtool's macro doesn't do the right thing.
INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
fi
AC_SUBST(INCLTDL)
AC_SUBST(LIBLTDL)
AC_SUBST(DIRLTDL)
AM_PROG_LIBTOOL
AC_CONFIG_SUBDIRS($DIRLTDL)
if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
COMPPATH=.
else
COMPPATH=..
fi
AC_SUBST(COMPPATH)
dnl The -no-testsuite modules omit the test subdir.
AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
dnl See whether the user prefers size or speed for Character.
dnl The default is size.
AC_ARG_ENABLE(fast-character,
[ --enable-fast-character prefer speed over size for Character],
# Nothing
, AC_DEFINE(COMPACT_CHARACTER))
dnl Should the runtime set system properties by examining the
dnl environment variable GCJ_PROPERTIES?
AC_ARG_ENABLE(getenv-properties,
[ --disable-getenv-properties
don't set system properties from GCJ_PROPERTIES])
dnl Whether GCJ_PROPERTIES is used depends on the target.
if test -n "$enable_getenv_properties"; then
enable_getenv_properties=${enable_getenv_properties_default-yes}
fi
if test "$enable_getenv_properties" = no; then
AC_DEFINE(DISABLE_GETENV_PROPERTIES)
fi
dnl See if the user has requested runtime debugging.
LIBGCJDEBUG="false"
AC_SUBST(LIBGCJDEBUG)
AC_ARG_ENABLE(libgcj-debug,
[ --enable-libgcj-debug enable runtime debugging code],
if test "$enable_libgcj_debug" = yes; then
AC_DEFINE(DEBUG)
LIBGCJDEBUG="true"
fi)
dnl See if the user has the interpreter included.
AC_ARG_ENABLE(interpreter,
[ --enable-interpreter enable interpreter],
if test "$enable_interpreter" = yes; then
# This can also be set in configure.host.
libgcj_interpreter=yes
elif test "$enable_interpreter" = no; then
libgcj_interpreter=no
fi)
if test "$libgcj_interpreter" = yes; then
AC_DEFINE(INTERPRETER)
fi
AC_MSG_CHECKING([for exception model to use])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_ARG_ENABLE(sjlj-exceptions,
[ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
[:],
[dnl Botheration. Now we've got to detect the exception model.
dnl Link tests against libgcc.a are problematic since -- at least
dnl as of this writing -- we've not been given proper -L bits for
dnl single-tree newlib and libgloss.
dnl
dnl This is what AC_TRY_COMPILE would do if it didn't delete the
dnl conftest files before we got a change to grep them first.
cat > conftest.$ac_ext << EOF
[#]line __oline__ "configure"
struct S { ~S(); };
void bar();
void foo()
{
S s;
bar();
}
EOF
old_CXXFLAGS="$CXXFLAGS"
CXXFLAGS=-S
if AC_TRY_EVAL(ac_compile); then
if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=yes
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
enable_sjlj_exceptions=no
fi
fi
CXXFLAGS="$old_CXXFLAGS"
rm -f conftest*])
if test x$enable_sjlj_exceptions = xyes; then
AC_DEFINE(SJLJ_EXCEPTIONS, 1,
[Define if the compiler is configured for setjmp/longjmp exceptions.])
ac_exception_model_name=sjlj
elif test x$enable_sjlj_exceptions = xno; then
ac_exception_model_name="call frame"
else
AC_MSG_ERROR([unable to detect exception model])
fi
AC_LANG_RESTORE
AC_MSG_RESULT($ac_exception_model_name)
AC_MSG_CHECKING([for data_start])
LIBDATASTARTSPEC=
NEEDS_DATA_START=
AC_TRY_LINK([extern int data_start;], [return ((int) &data_start);],
[AC_MSG_RESULT(found it)],
[LIBDATASTARTSPEC="-u data_start libgcjdata.a%s"
NEEDS_DATA_START=yes
AC_MSG_RESULT(missing)])
AC_SUBST(LIBDATASTARTSPEC)
dnl See if the user wants to disable java.net. This is the mildly
dnl ugly way that we admit that target-side configuration sucks.
AC_ARG_ENABLE(java-net,
[ --disable-java-net disable java.net])
dnl Whether java.net is built by default can depend on the target.
if test -n "$enable_java_net"; then
enable_java_net=${enable_java_net_default-yes}
fi
if test "$enable_java_net" = no; then
AC_DEFINE(DISABLE_JAVA_NET)
fi
dnl See if the user wants to disable JVMPI support.
AC_ARG_ENABLE(jvmpi,
[ --disable-jvmpi disable JVMPI support])
if test "$enable_jvmpi" != no; then
AC_DEFINE(ENABLE_JVMPI)
fi
dnl If the target is an eCos system, use the appropriate eCos
dnl I/O routines.
dnl FIXME: this should not be a local option but a global target
dnl system; at present there is no eCos target.
TARGET_ECOS="no"
AC_ARG_WITH(ecos,
[ --with-ecos enable runtime eCos target support],
TARGET_ECOS="$with_ecos"
)
case "$TARGET_ECOS" in
no)
FILE_DESCRIPTOR=natFileDescriptorPosix.cc
PROCESS=${PROCESS-Posix}
;;
*)
FILE_DESCRIPTOR=natFileDescriptorEcos.cc
PROCESS=Ecos
AC_DEFINE(ECOS)
;;
esac
AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED))
AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED))
AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED))
dnl These may not be defined in a non-ANS conformant embedded system.
dnl FIXME: Should these case a runtime exception in that case?
AC_EGREP_HEADER(mktime, time.h, AC_DEFINE(HAVE_MKTIME))
AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME))
dnl Create the subdirectory for natFileDescriptor.cc, or the attempt
dnl to create the link will fail.
test -d java || mkdir java
test -d java/io || mkdir java/io
test -d gnu || mkdir gnu
AC_LINK_FILES(java/io/$FILE_DESCRIPTOR, java/io/natFileDescriptor.cc)
dnl Likewise for ConcreteProcess.java and natConcreteProcess.cc.
test -d java/lang || mkdir java/lang
AC_LINK_FILES(java/lang/${PROCESS}Process.java, java/lang/ConcreteProcess.java)
AC_LINK_FILES(java/lang/nat${PROCESS}Process.cc, java/lang/natConcreteProcess.cc)
SYSTEMSPEC=
AC_SUBST(SYSTEMSPEC)
LIBGCJTESTSPEC="-L`pwd`/.libs -rpath `pwd`/.libs"
AC_SUBST(LIBGCJTESTSPEC)
AC_ARG_WITH(system-zlib,
[ --with-system-zlib use installed libz])
ZLIBSPEC=
AC_SUBST(ZLIBSPEC)
ZLIBTESTSPEC=
AC_SUBST(ZLIBTESTSPEC)
dnl FIXME: this should be _libs on some hosts.
libsubdir=.libs
dnl Allow the GC to be disabled. Can be useful when debugging.
AC_MSG_CHECKING([for garbage collector to use])
AC_ARG_ENABLE(java-gc,
changequote(<<,>>)dnl
<< --enable-java-gc=TYPE choose garbage collector [boehm]>>,
changequote([,])
GC=$enableval,
GC=boehm)
GCLIBS=
GCINCS=
GCDEPS=
GCOBJS=
GCSPEC=
JC1GCSPEC=
GCTESTSPEC=
case "$GC" in
boehm)
AC_MSG_RESULT(boehm)
GCDEPS='$(top_builddir)/../boehm-gc/libgcjgc.la'
# We include the path to the boehm-gc build directory.
# See Makefile.am to understand why.
GCLIBS="$GCDEPS -L\$(here)/../boehm-gc/$libsubdir"
GCINCS='-I$(top_srcdir)/../boehm-gc/include'
GCSPEC='-lgcjgc'
JC1GCSPEC='-fuse-boehm-gc'
GCTESTSPEC="-L`pwd`/../boehm-gc/.libs -rpath `pwd`/../boehm-gc/.libs"
dnl We also want to pick up some cpp flags required when including
dnl boehm-config.h. Yuck.
GCINCS="$GCINCS `cat ../boehm-gc/boehm-cflags`"
GCOBJS=boehm.lo
GCHDR=boehm-gc.h
dnl The POSIX thread support needs to know this.
AC_DEFINE(HAVE_BOEHM_GC)
;;
no)
AC_MSG_RESULT(none)
GCOBJS=nogc.lo
GCHDR=no-gc.h
;;
*)
AC_MSG_ERROR(unrecognized collector \"$GC\")
;;
esac
AC_SUBST(GCLIBS)
AC_SUBST(GCINCS)
AC_SUBST(GCDEPS)
AC_SUBST(GCOBJS)
AC_SUBST(GCSPEC)
AC_SUBST(JC1GCSPEC)
AC_SUBST(GCTESTSPEC)
AC_LINK_FILES(include/$GCHDR, include/java-gc.h)
AC_MSG_CHECKING([for thread model used by GCC])
THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
AC_MSG_RESULT([$THREADS])
case "$THREADS" in
no | none | single)
THREADS=none
;;
posix | pthreads)
THREADS=posix
case "$host" in
*-*-linux*)
AC_DEFINE(LINUX_THREADS)
;;
esac
;;
decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
AC_MSG_ERROR(thread package $THREADS not yet supported)
;;
*)
AC_MSG_ERROR($THREADS is an unknown thread package)
;;
esac
THREADLIBS=
THREADINCS=
THREADDEPS=
THREADOBJS=
THREADH=
THREADSPEC=
case "$THREADS" in
posix)
THREADLIBS=-lpthread
THREADSPEC=-lpthread
THREADOBJS=posix-threads.lo
THREADH=posix-threads.h
# MIT pthreads doesn't seem to have the mutexattr functions.
# But for now we don't check for it. We just assume you aren't
# using MIT pthreads.
AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
# If we're using the Boehm GC, then we happen to know that it
# defines _REENTRANT, so we don't bother. Eww.
if test "$GC" != boehm; then
AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
fi
AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
;;
none)
THREADOBJS=no-threads.lo
THREADH=no-threads.h
;;
esac
AC_LINK_FILES(include/$THREADH, include/java-threads.h)
AC_SUBST(THREADLIBS)
AC_SUBST(THREADINCS)
AC_SUBST(THREADDEPS)
AC_SUBST(THREADOBJS)
AC_SUBST(THREADSPEC)
AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)
CANADIAN=no
NULL_TARGET=no
NATIVE=yes
# We're in the tree with gcc, and need to include some of its headers.
GCC_UNWIND_INCLUDE='-I$(top_srcdir)/../gcc'
if test -n "${with_cross_host}"; then
# We are being configured with a cross compiler. AC_REPLACE_FUNCS
# may not work correctly, because the compiler may not be able to
# link executables.
# We assume newlib. This lets us hard-code the functions we know
# we'll have.
AC_DEFINE(HAVE_MEMMOVE)
AC_DEFINE(HAVE_MEMCPY)
AC_DEFINE(HAVE_STRERROR)
AC_DEFINE(HAVE_GMTIME_R)
AC_DEFINE(HAVE_LOCALTIME_R)
dnl This is only for POSIX threads.
AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT)
dnl We also assume we are using gcc, which provides alloca.
AC_DEFINE(HAVE_ALLOCA)
dnl Assume we do not have getuid and friends.
AC_DEFINE(NO_GETUID)
ZLIBSPEC=-lzgcj
ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
# If Canadian cross, then don't pick up tools from the build
# directory.
if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
CANADIAN=yes
GCC_UNWIND_INCLUDE=
GCJ="${target_alias}-gcj"
fi
NATIVE=no
else
AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep)
AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
AC_CHECK_FUNCS(access stat mkdir rename rmdir unlink realpath utime chmod)
AC_CHECK_FUNCS(iconv nl_langinfo setlocale)
AC_CHECK_FUNCS(inet_aton inet_addr, break)
AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
AC_CHECK_FUNCS(backtrace fork execvp pipe)
AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
AC_CHECK_LIB(dl, dladdr, [
AC_DEFINE(HAVE_DLADDR)])
AC_CHECK_FILES(/proc/self/exe, [
AC_DEFINE(HAVE_PROC_SELF_EXE)])
AC_CHECK_FUNCS(gethostbyname_r, [
AC_DEFINE(HAVE_GETHOSTBYNAME_R)
# There are two different kinds of gethostbyname_r.
# We look for the one that returns `int'.
# Hopefully this check is robust enough.
AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT)])
case " $GCINCS " in
*" -D_REENTRANT "*) ;;
*)
dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
[libjava_cv_gethostbyname_r_needs_reentrant],
[ AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <netdb.h>],
[gethostbyname_r("", 0, 0);],
[libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
CPPFLAGS_SAVE="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -D_REENTRANT"
AC_TRY_COMPILE([#include <netdb.h>], [gethostbyname_r("", 0, 0);],
[libjava_cv_gethostbyname_r_needs_reentrant=yes],
[libjava_cv_gethostbyname_r_needs_reentrant=fail])
CPPFLAGS="$CPPFLAGS_SAVE"
])
AC_LANG_RESTORE
])
if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
fi
;;
esac
AC_CACHE_CHECK([for struct hostent_data],
[libjava_cv_struct_hostent_data], [dnl
AC_TRY_COMPILE([
#if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
# define _REENTRANT 1
#endif
#include <netdb.h>], [struct hostent_data data;],
[libjava_cv_struct_hostent_data=yes],
[libjava_cv_struct_hostent_data=no])])
if test "x$libjava_cv_struct_hostent_data" = xyes; then
AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
[Define if struct hostent_data is defined in netdb.h])
fi
])
AC_CHECK_FUNCS(gethostbyaddr_r, [
AC_DEFINE(HAVE_GETHOSTBYADDR_R)
# There are two different kinds of gethostbyaddr_r.
# We look for the one that returns `int'.
# Hopefully this check is robust enough.
AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT)])])
AC_CHECK_FUNCS(gethostname, [
AC_DEFINE(HAVE_GETHOSTNAME)
AC_EGREP_HEADER(gethostname, unistd.h, [
AC_DEFINE(HAVE_GETHOSTNAME_DECL)])])
# Look for these functions in the thread library, but only bother
# if using POSIX threads.
if test "$THREADS" = posix; then
save_LIBS="$LIBS"
LIBS="$LIBS $THREADLIBS"
# Some POSIX thread systems don't have pthread_mutexattr_settype.
# E.g., Solaris.
AC_CHECK_FUNCS(pthread_mutexattr_settype pthread_mutexattr_setkind_np)
# Look for sched_yield. Up to Solaris 2.6, it is in libposix4, since
# Solaris 7 the name librt is preferred.
AC_CHECK_FUNCS(sched_yield, , [
AC_CHECK_LIB(rt, sched_yield, [
AC_DEFINE(HAVE_SCHED_YIELD)
THREADLIBS="$THREADLIBS -lrt"
THREADSPEC="$THREADSPEC -lrt"], [
AC_CHECK_LIB(posix4, sched_yield, [
AC_DEFINE(HAVE_SCHED_YIELD)
THREADLIBS="$THREADLIBS -lposix4"
THREADSPEC="$THREADSPEC -lposix4"])])])
LIBS="$save_LIBS"
# We can save a little space at runtime if the mutex has m_count
# or __m_count. This is a nice hack for Linux.
AC_TRY_COMPILE([#include <pthread.h>], [
extern pthread_mutex_t *mutex; int q = mutex->m_count;
], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT), [
AC_TRY_COMPILE([#include <pthread.h>], [
extern pthread_mutex_t *mutex; int q = mutex->__m_count;
], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT))])
fi
# We require a way to get the time.
time_found=no
AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
if test "$time_found" = no; then
AC_MSG_ERROR([no function found to get the time])
fi
AC_CHECK_FUNCS(memmove)
# We require memcpy.
memcpy_found=no
AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
if test "$memcpy_found" = no; then
AC_MSG_ERROR([memcpy is required])
fi
# Some library-finding code we stole from Tcl.
#--------------------------------------------------------------------
# Check for the existence of the -lsocket and -lnsl libraries.
# The order here is important, so that they end up in the right
# order in the command line generated by make. Here are some
# special considerations:
# 1. Use "connect" and "accept" to check for -lsocket, and
# "gethostbyname" to check for -lnsl.
# 2. Use each function name only once: can't redo a check because
# autoconf caches the results of the last check and won't redo it.
# 3. Use -lnsl and -lsocket only if they supply procedures that
# aren't already present in the normal libraries. This is because
# IRIX 5.2 has libraries, but they aren't needed and they're
# bogus: they goof up name resolution if used.
# 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
# To get around this problem, check for both libraries together
# if -lsocket doesn't work by itself.
#--------------------------------------------------------------------
AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
[gcj_cv_lib_sockets=
gcj_checkBoth=0
unset ac_cv_func_connect
AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
if test "$gcj_checkSocket" = 1; then
unset ac_cv_func_connect
AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
gcj_checkBoth=1)
fi
if test "$gcj_checkBoth" = 1; then
gcj_oldLibs=$LIBS
LIBS="$LIBS -lsocket -lnsl"
unset ac_cv_func_accept
AC_CHECK_FUNC(accept,
[gcj_checkNsl=0
gcj_cv_lib_sockets="-lsocket -lnsl"])
unset ac_cv_func_accept
LIBS=$gcj_oldLibs
fi
unset ac_cv_func_gethostbyname
gcj_oldLibs=$LIBS
LIBS="$LIBS $gcj_cv_lib_sockets"
AC_CHECK_FUNC(gethostbyname, ,
[AC_CHECK_LIB(nsl, main,
[gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
unset ac_cv_func_gethostbyname
LIBS=$gcj_oldLIBS
])
SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"
if test "$with_system_zlib" = yes; then
AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=-lzgcj)
else
ZLIBSPEC=-lzgcj
ZLIBTESTSPEC="-L`pwd`/../zlib/.libs -rpath `pwd`/../zlib/.libs"
fi
# On Solaris, and maybe other architectures, the Boehm collector
# requires -ldl.
if test "$GC" = boehm; then
AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
fi
if test -z "${with_multisubdir}"; then
builddotdot=.
else
changequote(<<,>>)
builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`
changequote([,])
fi
if test -x "${builddotdot}/../../gcc/gcj"; then
dir="`cd ${builddotdot}/../../gcc && pwd`"
GCJ="$dir/gcj -B`pwd`/ -B$dir/"
else
CANADIAN=yes
NULL_TARGET=yes
GCJ="gcj -B`pwd`/"
fi
fi
# Create it, so that compile/link tests don't fail
test -f libgcj.spec || touch libgcj.spec
# We must search the source tree for java.lang, since we still don't
# have libgcj.jar nor java/lang/*.class
GCJ_SAVE_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS -I`pwd` -I`cd $srcdir && pwd`"
# Since some classes depend on this one, we need its source available
# before we can do any GCJ compilation test :-(
if test ! -f gnu/classpath/Configuration.java; then
test -d gnu || mkdir gnu
test -d gnu/classpath || mkdir gnu/classpath
sed 's,@LIBGCJDEBUG@,$LIBGCJDEBUG,' \
< $srcdir/gnu/classpath/Configuration.java.in \
> gnu/classpath/Configuration.java
# We do not want to redirect the output of the grep below to /dev/null,
# but we add /dev/null to the input list so that grep will print the
# filename of Configuration.java in case it finds any matches.
if grep @ gnu/classpath/Configuration.java /dev/null; then
AC_MSG_ERROR([configure.in is missing the substitutions above])
fi
fi
LT_AC_PROG_GCJ
CPPFLAGS=$GCJ_SAVE_CPPFLAGS
dnl FIXME: cross compilation
AC_CHECK_SIZEOF(void *)
ZLIBS=
ZDEPS=
ZINCS=
if test "x$ZLIBSPEC" = "x-lzgcj"; then
# We include the path to the zlib build directory.
# See Makefile.am to understand why.
ZDEPS='$(top_builddir)/../zlib/libzgcj.la'
ZLIBS="$ZDEPS -L\$(here)/../zlib/$libsubdir"
ZINCS='-I$(top_srcdir)/../zlib'
else
ZLIBS="$ZLIBSPEC"
fi
AC_SUBST(ZLIBS)
AC_SUBST(ZDEPS)
AC_SUBST(ZINCS)
AC_SUBST(DIVIDESPEC)
AC_SUBST(EXCEPTIONSPEC)
AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
AC_SUBST(GCC_UNWIND_INCLUDE)
# Determine gcj version number.
changequote(<<,>>)
gcjvers="`$GCJ -v 2>&1 | sed -n 's/^.*version \([^ ]*\).*$/\1/p'`"
changequote([,])
AC_DEFINE_UNQUOTED(GCJVERSION, "$gcjvers")
AC_SUBST(GCJVERSION)
AC_SUBST(AM_RUNTESTFLAGS)
dnl Work around a g++ bug. Reported to gcc-bugs@gcc.gnu.org on Jan 22, 2000.
AC_MSG_CHECKING([for g++ -ffloat-store bug])
save_CFLAGS="$CFLAGS"
CFLAGS="-x c++ -O2 -ffloat-store"
AC_TRY_COMPILE([#include <math.h>], ,
[AC_MSG_RESULT(no)],
[AC_DEFINE(__NO_MATH_INLINES)
AC_MSG_RESULT(yes)])
CFLAGS="$save_CFLAGS"
dnl We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
dnl On that system, sys/ioctl.h will not include sys/filio.h unless
dnl BSD_COMP is defined; just including sys/filio.h is simpler.
AC_CHECK_HEADERS(unistd.h bstring.h sys/time.h sys/types.h fcntl.h sys/ioctl.h sys/filio.h sys/stat.h sys/select.h sys/socket.h netinet/in.h arpa/inet.h netdb.h pwd.h sys/config.h inttypes.h stdint.h langinfo.h locale.h)
dnl We avoid AC_HEADER_DIRENT since we really only care about dirent.h
dnl for now. If you change this, you also must update natFile.cc.
AC_CHECK_HEADERS(dirent.h)
AC_CHECK_TYPE([ssize_t], [int])
AC_MSG_CHECKING([for in_addr_t])
AC_TRY_COMPILE([#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif], [in_addr_t foo;],
[AC_DEFINE([HAVE_IN_ADDR_T])
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
AC_TRY_COMPILE([#include <netinet/in.h>], [struct ip_mreq mreq;],
[AC_DEFINE(HAVE_STRUCT_IP_MREQ)
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
AC_TRY_COMPILE([#include <netinet/in.h>], [struct sockaddr_in6 addr6;],
[AC_DEFINE(HAVE_INET6)
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING([for socklen_t in sys/socket.h])
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>], [socklen_t x = 5;],
[AC_DEFINE(HAVE_SOCKLEN_T)
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING([for tm_gmtoff in struct tm])
AC_TRY_COMPILE([#include <time.h>], [struct tm tim; tim.tm_gmtoff = 0;],
[AC_DEFINE(STRUCT_TM_HAS_GMTOFF)
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
AC_MSG_CHECKING([for global timezone variable])
dnl FIXME: we don't want a link check here because that won't work
dnl when cross-compiling. So instead we make an assumption that
dnl the header file will mention timezone if it exists.
AC_TRY_COMPILE([#include <time.h>], [long z2 = timezone;],
[AC_DEFINE(HAVE_TIMEZONE)
AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])])
AC_FUNC_ALLOCA
AC_CHECK_PROGS(PERL, perl, false)
SYSDEP_SOURCES=
case "${host}" in
i?86-*-linux*)
SIGNAL_HANDLER=include/i386-signal.h
;;
sparc-sun-solaris*)
SIGNAL_HANDLER=include/sparc-signal.h
;;
# ia64-*)
# SYSDEP_SOURCES=sysdep/ia64.c
# test -d sysdep || mkdir sysdep
# ;;
powerpc-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
;;
*)
SIGNAL_HANDLER=include/default-signal.h
;;
esac
# If we're using sjlj exceptions, forget what we just learned.
if test "$libgcj_sjlj" = yes; then
SIGNAL_HANDLER=include/default-signal.h
fi
AC_SUBST(SYSDEP_SOURCES)
AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
AC_PATH_XTRA
dnl Determine which AWT peer libraries to build
AC_ARG_ENABLE(java-awt,
[ --enable-java-awt list of AWT peer implementations to be built])
peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
use_xlib_awt=""
use_gtk_awt=""
for peer in $peerlibs ; do
case $peer in
xlib)
if [test "$no_x" = yes]; then
echo "*** xlib peers requested but no X library available" 1>&2
exit 1
else
use_xlib_awt="yes"
fi
;;
gtk)
# Nothing, yet...
;;
*)
echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
exit 1
esac
done
AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
AM_CONDITIONAL(GTK_AWT, test "$use_gtk_awt" = yes)
here=`pwd`
AC_SUBST(here)
# We get this from the environment.
AC_SUBST(GCJFLAGS)
AC_OUTPUT(Makefile libgcj.spec libgcj-test.spec gnu/classpath/Configuration.java gcj/Makefile include/Makefile testsuite/Makefile,
[if test -n "$CONFIG_FILES"; then
ac_file=Makefile . ${libgcj_basedir}/../config-ml.in
fi
# Make subdirectories and `.d' files. Look in both srcdir and
# builddir for the .java files.
h=`pwd`
: > deps.mk
( (cd $srcdir && find . -name '*.java' -print) ;
find . -name '*.java' -print) | \
fgrep -v testsuite | \
sed -e 's/\.java/.d/' | \
while read f; do
echo "include $f" >> deps.mk
test -f $f || {
changequote(<<,>>)
d=`echo $f | sed -e 's,/[^/]*$,,'`
changequote([,])
$srcdir/../mkinstalldirs $d
echo > $f
}
done
],
srcdir=${srcdir}
host=${host}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgcj_basedir=${libgcj_basedir}
CC="${CC}"
CXX="${CXX}"
)
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