+# Allow host libstdc++ to be specified for static linking with PPL.
+AC_ARG_WITH(host-libstdcxx, [ --with-host-libstdcxx=L Use linker arguments L to link with libstdc++
+ when linking with PPL])
+
+case $with_host_libstdcxx in
+ no|yes)
+ AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
+ ;;
+esac