+#undef dEXT
+#undef EXTCONST
+#undef dEXTCONST
+
+# if (defined(WIN32) && defined(__MINGW32__) && ! defined(PERL_IS_MINIPERL))
+# ifdef __cplusplus
+# define EXT __declspec(dllexport)
+# define dEXT
+# define EXTCONST __declspec(dllexport) extern const
+# define dEXTCONST const
+# else
+# define EXT __declspec(dllexport)
+# define dEXT
+# define EXTCONST __declspec(dllexport) const
+# define dEXTCONST const
+# endif
+# else
+# ifdef __cplusplus
+# define EXT
+# define dEXT
+# define EXTCONST EXTERN_C const
+# define dEXTCONST const
+# else
+# define EXT
+# define dEXT
+# define EXTCONST const
+# define dEXTCONST const
+# endif
+# endif