boost::uint_t<64>::fast is unsigned long under macOS, but uint_least64_t is unsigned long long

Author: pdimov

include/boost/crc.hpp

@@ -63,9 +63,23 @@ struct uint_t_32
     typedef std::uint_least32_t fast; // matches boost::uint_t<32>::fast
 };
 
+template<class T> struct remap_long_long
+{
+    typedef T type;
+};
+
+#if ULONG_MAX == ULLONG_MAX
+
+template<> struct remap_long_long<unsigned long long>
+{
+    typedef unsigned long type;
+};
+
+#endif
+
 struct uint_t_64
 {
-    typedef std::uint_least64_t fast; // matches boost::uint_t<64>::fast
+    typedef remap_long_long<std::uint_least64_t>::type fast; // matches boost::uint_t<64>::fast
 };
 
 struct uint_t_none