diff --git a/RenderScript.h b/RenderScript.h
index 2d352be..0eb6a6d 100644
--- a/RenderScript.h
+++ b/RenderScript.h
@@ -33,6 +33,8 @@
     friend class Allocation;
     friend class Element;
     friend class Type;
+    friend class Script;
+    friend class ScriptC;
 
 public:
     RenderScript();
@@ -144,6 +146,7 @@
 
 
 
+    void throwError(const char *err) const;
 
     static void * threadProc(void *);