support universal builds of acedb

scripts/build_config.mac.sh

@@ -11,6 +11,6 @@ PKG_CONFIG=$GTK_PREFIX/bin/pkg-config
 UNIVERSAL_BUILD=yes
 
 
-if [ "x$UNIVERSAL" == "xyes" ]; then
+if [ "x$UNIVERSAL_BUILD" == "xyes" ]; then
     ZMAP_ACEDB_VERSION_DIR=UNIVERSAL
 fi