* Silence signed/unsigned warnings
* Make it compile with GCC 3.0.4

llvm-svn: 1787
diff --git a/llvm/lib/CodeGen/InstrSched/SchedPriorities.h b/llvm/lib/CodeGen/InstrSched/SchedPriorities.h
index 7cfc4c0..52b5b9f 100644
--- a/llvm/lib/CodeGen/InstrSched/SchedPriorities.h
+++ b/llvm/lib/CodeGen/InstrSched/SchedPriorities.h
@@ -26,7 +26,8 @@
 #include "llvm/Target/MachineSchedInfo.h"
 #include "Support/CommandLine.h"
 #include <list>
-#include <hash_set>
+#include <ext/hash_set>
+#include <ostream>
 class Method;
 class MachineInstr;
 class SchedulingManager;