SunOS can rot in hell.
diff --git a/src/libdraw/md-draw.c b/src/libdraw/md-draw.c
index d0f2d4f..c8ad2a6 100644
--- a/src/libdraw/md-draw.c
+++ b/src/libdraw/md-draw.c
@@ -1906,7 +1906,7 @@
 	default:
 		assert(0 /* boolcopyfn */);
 	}
-	return nil;
+	return 0;
 }
 
 /*