Index: libtool.m4.ext
===================================================================
--- libtool.m4.ext	(revision 3228)
+++ libtool.m4.ext	(working copy)
@@ -3029,7 +3029,7 @@
                _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
                ;;
              10.*)
-               _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-undefined ${wl}dynamic_lookup'
+               _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-flat_namespace ${wl}-undefined ${wl}dynamic_lookup'
                ;;
            esac
          fi
@@ -5816,7 +5816,7 @@
                _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-flat_namespace ${wl}-undefined ${wl}suppress'
                ;;
              10.*)
-               _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-undefined ${wl}dynamic_lookup'
+               _LT_AC_TAGVAR(allow_undefined_flag, $1)='${wl}-flat_namespace ${wl}-undefined ${wl}dynamic_lookup'
                ;;
            esac
          fi