Index: /mpich2/trunk/src/mpid/common/datatype/dataloop/segment_ops.c
===================================================================
--- /mpich2/trunk/src/mpid/common/datatype/dataloop/segment_ops.c (revision 4707)
+++ /mpich2/trunk/src/mpid/common/datatype/dataloop/segment_ops.c (revision 4872)
@@ -789,5 +789,5 @@
                                             DLOOP_Type el_type,
                                             DLOOP_Offset rel_off,
-                                            void *bufp ATTRIBUTE((unused)),
+                                            void *bufp,
                                             void *v_paramp)
 {
@@ -882,5 +882,5 @@
 					   DLOOP_Type el_type,
 					   DLOOP_Offset rel_off,
-					   void *bufp ATTRIBUTE((unused)),
+					   void *bufp,
 					   void *v_paramp)
 {