Convert the recv and callback function prototypes to consistently use pointers to tag.

This commit was SVN r2122.

src/mca/oob/base/base.h

@@ -220,7 +220,7 @@ typedef void (*mca_oob_callback_fn_t)(
     ompi_process_name_t* peer, 
     struct iovec* msg, 
     int count,
-    int tag,
+    int* tag,
     void* cbdata);
 
 /**
@@ -240,7 +240,7 @@ typedef void (*mca_oob_callback_packed_fn_t)(
     ompi_process_name_t* peer, 
     ompi_buffer_t* buffer,
     int count,
-    int tag,
+    int* tag,
     void* cbdata);
 
 /**
@@ -290,7 +290,7 @@ int mca_oob_recv_nb(
     ompi_process_name_t* peer, 
     struct iovec* msg,  
     int count, 
-    int tag,
+    int* tag,
     int flags, 
     mca_oob_callback_fn_t cbfunc,
     void* cbdata);

src/mca/oob/base/oob_base_recv_nb.c

@@ -14,7 +14,7 @@
  * @param cbdata (IN)  User data that is passed to callback function.
  * @return             OMPI error code (<0) on error or number of bytes actually received.
  */
-int mca_oob_recv_nb(ompi_process_name_t* peer, struct iovec* msg, int count, int tag, int flags,
+int mca_oob_recv_nb(ompi_process_name_t* peer, struct iovec* msg, int count, int* tag, int flags,
                     mca_oob_callback_fn_t cbfunc, void* cbdata)
 {
     return(mca_oob.oob_recv_nb(peer, msg, count, tag, flags, cbfunc, cbdata));