# define EXTCONST globalref
# define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
#else
-# if (defined(_MSC_VER) && defined(_WIN32)) || (defined(__BORLANDC__) && defined(__WIN32__))
-# ifdef PERL_CORE
+# if defined(WIN32) && !defined(__GNUC__)
+# ifdef PERLDLL
# define EXT extern __declspec(dllexport)
# define dEXT
# define EXTCONST extern __declspec(dllexport) const