fix a warning

diff --git a/ghc/rts/GC.c b/ghc/rts/GC.c
index 4235d3e..a13cd33 100644 (file)
--- a/ghc/rts/GC.c
+++ b/ghc/rts/GC.c
@@ -818,7 +818,7 @@ GarbageCollect ( void (*get_roots)(evac_fn), rtsBool force_major_gc )
        }
        copied +=  mut_list_size;
 
-       IF_DEBUG(gc, debugBelch("mut_list_size: %d (%d vars, %d arrays, %d others)\n", mut_list_size * sizeof(W_), mutlist_MUTVARS, mutlist_MUTARRS, mutlist_OTHERS));
+       IF_DEBUG(gc, debugBelch("mut_list_size: %ld (%d vars, %d arrays, %d others)\n", mut_list_size * sizeof(W_), mutlist_MUTVARS, mutlist_MUTARRS, mutlist_OTHERS));
     }
 
     for (s = 0; s < generations[g].n_steps; s++) {