--- a/hostsupport/hostopenvg/src/riUtils.cpp	Tue Oct 26 14:14:43 2010 +0100
+++ b/hostsupport/hostopenvg/src/riUtils.cpp	Mon Nov 01 18:10:32 2010 +0000
@@ -131,7 +131,9 @@
     } 
     else
     {
+#if defined(RI_DEBUG)
         int new_ib = (ib + bitSize) & 0x1f;
+#endif
         RI_ASSERT((ib + bitSize == 32) ? new_ib == 0 : true);
         hash[idw] |= (bits << ib);
     }