Use a proper prefix for MPI_Status_set_bytes

This commit was SVN r2815.

src/mca/io/romio/romio-dist/include/io_romio_conv.h

@@ -107,4 +107,7 @@
    here and allow it to be re-assigned to whatever ROMIO wants */
 #undef MPI_FILE_NULL
 
+/* Let's not use MPIR_Status_set_bytes */
+#define MPIR_Status_set_bytes ROMIO_PREFIX(MPIR_Status_set_bytes)
+
 #endif /* MCA_IO_ROMIO_CONV_H */