--- a/src/landscape.h	Tue Jan 22 16:08:17 2008 +0000
+++ b/src/landscape.h	Tue Jan 22 17:48:08 2008 +0000
@@ -32,6 +32,7 @@
 uint GetSlopeZ(int x, int y);
 void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);
 int GetSlopeZInCorner(Slope tileh, Corner corner);
+Slope GetFoundationSlope(TileIndex tile, uint* z);
 
 static inline Point RemapCoords(int x, int y, int z)
 {
@@ -55,8 +56,6 @@
 void InitializeLandscape();
 void GenerateLandscape(byte mode);
 
-void ConvertGroundTilesIntoWaterTiles();
-
 TileIndex AdjustTileCoordRandomly(TileIndex a, byte rng);
 
 #endif /* LANDSCAPE_H */