#! /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 [ -f ${if_topsrcdir}/libstdc++/Makefile.in ]; then # We check libstdc++ for libstdcxx_interface. libstdcxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/libstdc++/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 2.1. libc_interface=-libc6.1- fi ;; *) libc_interface=- ;; esac fi