diff -r 760134e9dab6 -r 2898cd9417fd src/clear_cmd.cpp
--- a/src/clear_cmd.cpp	Thu Feb 22 06:57:21 2007 +0000
+++ b/src/clear_cmd.cpp	Thu Feb 22 08:43:02 2007 +0000
@@ -370,8 +370,8 @@
 	ey = TileY(tile);
 	sx = TileX(p1);
 	sy = TileY(p1);
-	if (ex < sx) intswap(ex, sx);
-	if (ey < sy) intswap(ey, sy);
+	if (ex < sx) Swap(ex, sx);
+	if (ey < sy) Swap(ey, sy);
 	tile = TileXY(sx, sy);
 
 	size_x = ex-sx+1;