--- src.orig/Makefile.ref	2009-07-08 16:54:00.490182424 -0700
+++ src/Makefile.ref	2009-07-08 16:56:37.903182529 -0700
@@ -79,6 +79,10 @@
 DEFINES += -DJS_HAS_FILE_OBJECT
 endif
 
+ifdef JS_NLS
+DEFINES += -DJS_C_STRINGS_ARE_UTF8
+endif
+
 #
 # XCFLAGS may be set in the environment or on the gmake command line
 #