Export NS_InitMsgAppCoreClass to fix build. Alec is going to make the correct change and add this to the idl file so we won't lose it the next time we rev the idl files. This was part of the hack stuff we had to add to get msgappcore running in apprunner..

mailnews/ui/messenger/public/nsIDOMMsgAppCore.h

@@ -18,6 +18,8 @@
 #include "nsID.h"
 #include "nsError.h"
 
+extern "C" NS_DOM
+nsresult NS_InitMsgAppCoreClass(nsIScriptContext *aContext, void **aPrototype, JSObject * aParentProto);
 
 /* starting interface nsIDOMMsgAppCore */