--- a/mpi/longlong.h
+++ b/mpi/longlong.h
@@ -172,7 +172,7 @@ along with this file; if not, see <http:
     (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
     (r) = __r;								\
   } while (0)
-extern UDItype __udiv_qrnnd ();
+extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
 #define UDIV_TIME 220
 #endif /* LONGLONG_STANDALONE */
 #endif /* __alpha */
@@ -355,7 +355,7 @@ extern UDItype __udiv_qrnnd ();
     (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
     (r) = __r;								\
   } while (0)
-extern USItype __udiv_qrnnd ();
+extern USItype __udiv_qrnnd (USItype *, USItype, USItype, USItype);
 #endif /* LONGLONG_STANDALONE */
 #define count_leading_zeros(count, x) \
   do {								       \
@@ -1296,7 +1296,7 @@ extern USItype __udiv_qrnnd ();
     (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
     (r) = __r;								\
   } while (0)
-extern USItype __udiv_qrnnd ();
+extern USItype __udiv_qrnnd (USItype *, USItype, USItype, USItype);
 #define UDIV_TIME 140
 #endif /* LONGLONG_STANDALONE */
 #endif /* udiv_qrnnd */