diff -r de259c566e37 src/landscape.h
--- a/src/landscape.h	Fri Oct 17 18:03:55 2008 +0200
+++ b/src/landscape.h	Fri Oct 17 18:04:32 2008 +0200
@@ -10,10 +10,15 @@
 #include "slope_type.h"
 #include "direction_type.h"
 
-enum {
-	SNOW_LINE_MONTHS = 12,
-	SNOW_LINE_DAYS   = 32,
-};
+/** Number of months in the snow line table.
+ * @see SnowLine
+ */
+static const uint SNOW_LINE_MONTHS = 12;
+
+/** Number of days in each month in the snow line table.
+ * @see SnowLine
+ */
+static const uint SNOW_LINE_DAYS   = 32;
 
 /** Structure describing the height of the snow line each day of the year */
 struct SnowLine {
diff -r de259c566e37 src/newgrf.cpp
--- a/src/newgrf.cpp	Fri Oct 17 18:03:55 2008 +0200
+++ b/src/newgrf.cpp	Fri Oct 17 18:04:32 2008 +0200
@@ -1737,7 +1737,7 @@
 			case 0x10: // Snow line height table
 				if (numinfo > 1 || IsSnowLineSet()) {
 					grfmsg(1, "GlobalVarChangeInfo: The snowline can only be set once (%d)", numinfo);
-				} else if (len < SNOW_LINE_MONTHS * SNOW_LINE_DAYS) {
+				} else if (len < (int)(SNOW_LINE_MONTHS * SNOW_LINE_DAYS)) {
 					grfmsg(1, "GlobalVarChangeInfo: Not enough entries set in the snowline table (%d)", len);
 				} else {
 					byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS];
diff -r de259c566e37 src/station_cmd.cpp
--- a/src/station_cmd.cpp	Fri Oct 17 18:03:55 2008 +0200
+++ b/src/station_cmd.cpp	Fri Oct 17 18:04:32 2008 +0200
@@ -425,7 +425,7 @@
 void GetProductionAroundTiles(AcceptedCargo produced, TileIndex tile,
 	int w, int h, int rad)
 {
-	memset(produced, 0, sizeof(AcceptedCargo));
+	memset(produced, 0, sizeof(produced));
 
 	int x = TileX(tile);
 	int y = TileY(tile);
@@ -451,7 +451,7 @@
 				GetProducedCargoProc *gpc = _tile_type_procs[GetTileType(tile)]->get_produced_cargo_proc;
 				if (gpc != NULL) {
 					CargoID cargos[256]; // Required for CBID_HOUSE_PRODUCE_CARGO.
-					memset(cargos, CT_INVALID, 256);
+					memset(cargos, CT_INVALID, sizeof(cargos));
 
 					gpc(tile, cargos);
 					for (uint i = 0; i < lengthof(cargos); ++i) {
@@ -474,7 +474,7 @@
 void GetAcceptanceAroundTiles(AcceptedCargo accepts, TileIndex tile,
 	int w, int h, int rad)
 {
-	memset(accepts, 0, sizeof(AcceptedCargo));
+	memset(accepts, 0, sizeof(accepts));
 
 	int x = TileX(tile);
 	int y = TileY(tile);