+# if defined(__CYGWIN__) && defined(USEIMPORTLIB)
+# define EXT extern __declspec(dllimport)
+# define dEXT
+# define EXTCONST extern __declspec(dllimport) const
+# define dEXTCONST const
+# else
+# define EXT extern
+# define dEXT
+# define EXTCONST extern const
+# define dEXTCONST const
+# endif