Fix size_t redeclaration in VS2013
@@ -94,7 +94,10 @@ BSON_BEGIN_DECLS
#define _SSIZE_T_DEFINED
typedef SSIZE_T ssize_t;
#endif
+#ifndef _SIZE_T_DEFINED
+#define _SIZE_T_DEFINED
typedef SIZE_T size_t;
+#endif
#pragma warning(default : 4142)
#else
/*
