diff -r 7f89731a0507 -r 8fb778a7f2d7 src/water_cmd.cpp
--- a/src/water_cmd.cpp	Thu Feb 22 06:57:21 2007 +0000
+++ b/src/water_cmd.cpp	Thu Feb 22 08:43:02 2007 +0000
@@ -229,8 +229,8 @@
 
 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
 
-	if (x < sx) intswap(x, sx);
-	if (y < sy) intswap(y, sy);
+	if (x < sx) Swap(x, sx);
+	if (y < sy) Swap(y, sy);
 	size_x = (x - sx) + 1;
 	size_y = (y - sy) + 1;