diff -up mozjs17.0.0/js/src/jsval.h.jsval mozjs17.0.0/js/src/jsval.h

--- mozjs17.0.0/js/src/jsval.h.jsval	2013-05-17 16:31:03.000000000 +0200

+++ mozjs17.0.0/js/src/jsval.h	2013-05-17 16:31:13.000000000 +0200

@@ -304,7 +304,6 @@ typedef union jsval_layout

             int32_t        i32;

             uint32_t       u32;

             JSWhyMagic     why;

-            jsuword        word;

         } payload;

     } s;

     double asDouble;