--- a/dwt/dwthelper/utils.d	Tue Feb 05 20:28:19 2008 +0100
+++ b/dwt/dwthelper/utils.d	Wed Feb 06 11:08:01 2008 +0100
@@ -147,20 +147,20 @@
     }
 }
 
-struct GCStats {
+private struct GCStats {
     size_t poolsize;        // total size of pool
     size_t usedsize;        // bytes allocated
     size_t freeblocks;      // number of blocks marked FREE
     size_t freelistsize;    // total of memory on free lists
     size_t pageblocks;      // number of blocks marked PAGE
 }
-extern(C) GCStats gc_stats();
+private extern(C) GCStats gc_stats();
+
 size_t RuntimeTotalMemory(){
     GCStats s = gc_stats();
     return s.poolsize;
 }
 
-}