diff --git a/src/landscape.cpp b/src/landscape.cpp
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -130,12 +130,12 @@ Point InverseRemapCoords2(int x, int y, 
 	 * So give it a z-malus of 4 in the first iterations. */
 	int z = 0;
 	if (clamp_to_map) {
-		for (int i = 0; i < 5; i++) z = GetSlopePixelZ(Clamp(pt.x + max(z, 4) - 4, min_coord, max_x), Clamp(pt.y + max(z, 4) - 4, min_coord, max_y)) / 2;
-		for (int m = 3; m > 0; m--) z = GetSlopePixelZ(Clamp(pt.x + max(z, m) - m, min_coord, max_x), Clamp(pt.y + max(z, m) - m, min_coord, max_y)) / 2;
+		for (int i = 0; i < 5; i++) z = GetSlopePixelZ(Clamp(pt.x + std::max(z, 4) - 4, min_coord, max_x), Clamp(pt.y + std::max(z, 4) - 4, min_coord, max_y)) / 2;
+		for (int m = 3; m > 0; m--) z = GetSlopePixelZ(Clamp(pt.x + std::max(z, m) - m, min_coord, max_x), Clamp(pt.y + std::max(z, m) - m, min_coord, max_y)) / 2;
 		for (int i = 0; i < 5; i++) z = GetSlopePixelZ(Clamp(pt.x + z,             min_coord, max_x), Clamp(pt.y + z,             min_coord, max_y)) / 2;
 	} else {
-		for (int i = 0; i < 5; i++) z = GetSlopePixelZOutsideMap(pt.x + max(z, 4) - 4, pt.y + max(z, 4) - 4) / 2;
-		for (int m = 3; m > 0; m--) z = GetSlopePixelZOutsideMap(pt.x + max(z, m) - m, pt.y + max(z, m) - m) / 2;
+		for (int i = 0; i < 5; i++) z = GetSlopePixelZOutsideMap(pt.x + std::max(z, 4) - 4, pt.y + std::max(z, 4) - 4) / 2;
+		for (int m = 3; m > 0; m--) z = GetSlopePixelZOutsideMap(pt.x + std::max(z, m) - m, pt.y + std::max(z, m) - m) / 2;
 		for (int i = 0; i < 5; i++) z = GetSlopePixelZOutsideMap(pt.x + z,             pt.y + z            ) / 2;
 	}
 
@@ -630,8 +630,8 @@ void SetSnowLine(byte table[SNOW_LINE_MO
 
 	for (uint i = 0; i < SNOW_LINE_MONTHS; i++) {
 		for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
-			_snow_line->highest_value = max(_snow_line->highest_value, table[i][j]);
-			_snow_line->lowest_value = min(_snow_line->lowest_value, table[i][j]);
+			_snow_line->highest_value = std::max(_snow_line->highest_value, table[i][j]);
+			_snow_line->lowest_value = std::min(_snow_line->lowest_value, table[i][j]);
 		}
 	}
 }