Make the compiler happy by comparing similar types.

This commit was SVN r3219.

src/mpi/c/pack.c

@@ -54,7 +54,7 @@ int MPI_Pack(void *inbuf, int incount, MPI_Datatype datatype,
   /* Check for truncation */
 
   ompi_convertor_get_packed_size(local_convertor, &size);
-  if (*position + size > outsize) {
+  if( (*position + size) > (unsigned int)outsize ) {  /* we can cast as we already checked for < 0 */
     OBJ_RELEASE(local_convertor);
     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TRUNCATE, FUNC_NAME);
   }

src/mpi/c/pack_size.c

@@ -26,6 +26,7 @@ int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
 {
     int ret;
     ompi_convertor_t *local_convertor;
+    unsigned int length;
 
     if (MPI_PARAM_CHECK) {
         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
@@ -42,7 +43,8 @@ int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
     local_convertor = OBJ_NEW(ompi_convertor_t);
     ompi_convertor_init_for_send(local_convertor, 0, datatype, incount,
 				 NULL, 0, NULL /* never allocate memory */);
-    ret = ompi_convertor_get_packed_size(local_convertor, size);
+    ret = ompi_convertor_get_packed_size(local_convertor, &length);
+    *size = (int)length;
     OBJ_RELEASE(local_convertor);
 
     OMPI_ERRHANDLER_RETURN(ret, comm, MPI_ERR_UNKNOWN, FUNC_NAME);

src/mpi/c/unpack.c

@@ -58,7 +58,7 @@ int MPI_Unpack(void *inbuf, int insize, int *position,
   /* Check for truncation */
 
   ompi_convertor_get_packed_size(local_convertor, &size);
-  if (*position + size > insize) {
+  if( (*position + size) > (unsigned int)insize ) {
     OBJ_RELEASE(local_convertor);
     return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TRUNCATE, FUNC_NAME);
   }