#! /dev/null # Don't call it directly. This shell script fragment is called to # determine: # # 1. libstcxx_incdir: the interface name for libstdc++. # 2. 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=${top_srcdir} fi # Set libstdcxx_incdir. # This is the same as gcc/configure.in and libstdc++-v3/acinclude.m4. if test -z "$gcc_version"; then if test -z "${gcc_version_trigger}" \ && test -f ${if_topsrcdir}/gcc/version.c; then gcc_version_trigger=${if_topsrcdir}/gcc/version.c fi if test -f "${gcc_version_trigger}"; then gcc_version_full=`grep version_string "${gcc_version_trigger}" | sed -e 's/.*"\([^"]*\)".*/\1/'` else gcc_version_full=`$CC -v 2>&1 | sed -n 's/^gcc version //p'` fi gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` fi libstdcxx_incdir=c++/${gcc_version} # The trickiest part is libc_interface. if [ -z "${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