Merge kpettersson@bk-internal.mysql.com:/home/bk/mysql-5.0-runtime

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

mysys/my_thr_init.c

@@ -223,7 +223,7 @@ void my_thread_global_end(void)
 #endif
 }
 
-static long thread_id=0;
+static ulong thread_id=0;
 
 /*
   Allocate thread specific memory for the thread, used by mysys and dbug