*
*/
+/*
+ * EXT designates a global var which is defined in perl.h
+ * dEXT designates a global var which is defined in another
+ * file, so we can't count on finding it in perl.h
+ * (this practice should be avoided).
+ */
#undef EXT
-#define EXT extern
+#undef dEXT
+#undef EXTCONST
+#undef dEXTCONST
+#if defined(VMS) && !defined(__GNUC__)
+# define EXT globalref
+# define dEXT globaldef {"$GLOBAL_RW_VARS"} noshare
+# define EXTCONST globalref
+# define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
+#else
+# define EXT extern
+# define dEXT
+# define EXTCONST extern const
+# define dEXTCONST const
+#endif
#undef INIT
#define INIT(x)