Index: src/stdafx.h
===================================================================
--- src/stdafx.h	(revision 27915)
+++ src/stdafx.h	(working copy)
@@ -383,7 +383,7 @@
 /* Compile time assertions. Prefer c++0x static_assert().
  * Older compilers cannot evaluate some expressions at compile time,
  * typically when templates are involved, try assert_tcompile() in those cases. */
-#if defined(__STDCXX_VERSION__) || defined(__GXX_EXPERIMENTAL_CXX0X__) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(static_assert)
+#if defined(__STDCXX_VERSION__) || defined(__GXX_EXPERIMENTAL_CXX0X__) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(static_assert) || (defined(_MSC_VER) && _MSC_VER >= 1900)
 	/* __STDCXX_VERSION__ is c++0x feature macro, __GXX_EXPERIMENTAL_CXX0X__ is used by gcc, __GXX_EXPERIMENTAL_CPP0X__ by icc */
 	#define assert_compile(expr) static_assert(expr, #expr )
 	#define assert_tcompile(expr) assert_compile(expr)
Index: src/viewport_sprite_sorter.h
===================================================================
--- src/viewport_sprite_sorter.h	(revision 27915)
+++ src/viewport_sprite_sorter.h	(working copy)
@@ -37,7 +37,7 @@
 	int32 left;                     ///< minimal screen X coordinate of sprite (= x + sprite->x_offs), reference point for child sprites
 	int32 top;                      ///< minimal screen Y coordinate of sprite (= y + sprite->y_offs), reference point for child sprites
 
-	int first_child;                ///< the first child to draw.
+	int32 first_child;                ///< the first child to draw.
 	bool comparison_done;           ///< Used during sprite sorting: true if sprite has been compared with all other sprites
 };