--- unix/configure.orig	2015-06-18 13:37:38.000000000 -0500
+++ unix/configure	2015-06-20 06:25:32.000000000 -0500
@@ -3651,7 +3651,7 @@
 case $build_os in
   Darwin*)
     SHLIB_SUFFIX=".dylib"
-    SHLIB_LD="${CXX} -dynamiclib -flat_namespace -undefined suppress"
+    SHLIB_LD="${CXX} -dynamiclib -undefined dynamic_lookup"
     STRIP_FLAGS=-S
     ;;
   HP-UX*)