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#! /dev/null
# Don't call it directly. This shell script fragment is called to
# determine:
#
# 1. libstcxx_interface: the interface name for libstdc++.
# 2. cxx_interface: the interface name for c++.
# 3. libc_interface: the interface name for libc.
#
# Get the top level src dir.
if [ -z "${topsrcdir}" -a -z "${top_srcdir}" ]
then
echo "Undefined top level src dir: topsrcdir and top_srcdir are empty" >&2
exit 1
fi
if [ -n "${topsrcdir}" ]
then
if_topsrcdir=${topsrcdir}
else
if_topsrcdir=${top_srcdir}
fi
if [ "${enable_libstdcxx_v3}" = "yes" ] ; then
libstdcxx_srcdir=${if_topsrcdir}/libstdc++-v3
else
libstdcxx_srcdir=${if_topsrcdir}/libstdc++
fi
if [ -f ${libstdcxx_srcdir}/Makefile.in ]; then
# We check libstdc++ for libstdcxx_interface.
libstdcxx_interface=`grep "^INTERFACE" ${libstdcxx_srcdir}/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'`
else
libstdcxx_interface=
fi
if [ -f ${if_topsrcdir}/gcc/cp/Makefile.in ]; then
# We check gcc/cp for cxx_interface.
cxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/gcc/cp/Makefile.in | sed 's/INTERFACE[ ]*=[ ]*\(.*\)/\1/'`
else
cxx_interface=
fi
# The trickiest part is libc_interface.
if [ -z "${libc_interface}" ]
then
case ${target_os} in
*linux*libc1*|*linux*libc5*)
case ${target_alias} in
*alpha*|*powerpc*)
libc_interface=-libc5.9-
;;
*)
libc_interface=-libc5-
;;
esac
;;
*linux*gnu*)
# We have to work harder to figure it out.
if [ ${target_alias} = ${build_alias} ]
then
dummy=if$$
cat >$dummy.c <<EOF
#include <features.h>
main(argc, argv)
int argc;
char *argv[];
{
printf("%d\n", __GLIBC_MINOR__);
return 0;
}
EOF
${CC-cc} $dummy.c -o $dummy 2>/dev/null
if [ "$?" = 0 ]
then
libc_interface=-libc6.`./$dummy`-
rm -f $dummy.c $dummy
else
# It should never happen.
echo "Cannot find the GNU C library minor version number." >&2
rm -f $dummy.c $dummy
exit 1
fi
else
# Cross compiling. Assume glibc 2.2.
libc_interface=-libc6.2-
fi
;;
*)
libc_interface=-
;;
esac
fi
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