stfu s2 (#8960)

3rdParty/s2geometry/dfefe0c/src/s2/s2polygon.h

@@ -48,7 +48,7 @@ class S2Error;
 class S2Loop;
 class S2PolygonBuilder;
 class S2Polyline;
-class S2XYZFaceSiTi;
+struct S2XYZFaceSiTi;
 
 // An S2Polygon is an S2Region object that represents a polygon.  A polygon is
 // defined by zero or more loops; recall that the interior of a loop is

3rdParty/s2geometry/dfefe0c/src/s2/s2region_coverer.h

@@ -28,6 +28,10 @@
 #include "s2/s2cell_id.h"
 #include "s2/s2cell_union.h"
 
+#ifdef _WIN32
+#pragma warning(disable : 4200)
+#endif
+
 class S2Region;
 
 // An S2RegionCoverer is a class that allows arbitrary regions to be

3rdParty/s2geometry/dfefe0c/src/s2/util/coding/coder.h

@@ -32,6 +32,10 @@
 #include "s2/util/coding/varint.h"
 #include "s2/util/endian/endian.h"
 
+#ifdef _WIN32
+#define memccpy _memccpy
+#endif
+
 /* Class for encoding data into a memory buffer */
 class Decoder;
 class Encoder {