Add missing include

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@1525 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackPort.cpp

@@ -21,6 +21,7 @@ This program is free software; you can redistribute it and/or modify
 #include "JackPort.h"
 #include "JackError.h"
 #include <stdio.h>
+#include <assert.h>
 
 namespace Jack
 {