From 3a706b0f2d6775d72d36f430d406f5892db042e4 Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Fri, 25 Jul 2008 10:10:11 +0000
Subject: [PATCH] (svn r13822) -Fix [FS#2166]: building through the wrong side
 of a drive through station was allowed.

---
 src/road_cmd.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
index 4914ad1f83..be2e613390 100644
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -570,7 +570,11 @@ CommandCost CmdBuildRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 		}
 
 		case MP_STATION:
-			if (!IsDriveThroughStopTile(tile)) return CMD_ERROR;
+			if (IsDriveThroughStopTile(tile)) {
+				if (pieces & ~AxisToRoadBits(DiagDirToAxis(GetRoadStopDir(tile)))) goto do_clear;
+			} else {
+				if (pieces & ~DiagDirToRoadBits(GetRoadStopDir(tile))) goto do_clear;
+			}
 			if (HasTileRoadType(tile, rt)) return_cmd_error(STR_1007_ALREADY_BUILT);
 			break;