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-rw-r--r--tunnel_map.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tunnel_map.h b/tunnel_map.h
index aa30e12c3..047f631f9 100644
--- a/tunnel_map.h
+++ b/tunnel_map.h
@@ -22,6 +22,7 @@ static inline TransportType GetTunnelTransportType(TileIndex t)
TileIndex GetOtherTunnelEnd(TileIndex);
+bool IsTunnelInWay(TileIndex, uint z);
static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d)