diff --git a/js/src/jsfun.h b/js/src/jsfun.h
index a52092c..9555a03 100644
--- a/js/src/jsfun.h
+++ b/js/src/jsfun.h
@@ -144,6 +144,7 @@ struct JSFunction : public JSObject_Slots2
void *nativeOrScript;
} u;
JSAtom *atom; /* name for diagnostics and decompiling */
+ void *dummy; /* for building with Solaris Studio */
bool optimizedClosure() const { return FUN_KIND(this) > JSFUN_INTERPRETED; }
bool needsWrapper() const { return FUN_NULL_CLOSURE(this) && u.i.skipmin != 0; }