-/* $Header: EXTERN.h,v 1.0 87/12/18 13:02:26 root Exp $
+/* EXTERN.h
+ *
+ * Copyright (c) 1991-2000, Larry Wall
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
*
- * $Log: EXTERN.h,v $
- * Revision 1.0 87/12/18 13:02:26 root
- * Initial revision
- *
*/
+/*
+ * 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__)
+ /* Suppress portability warnings from DECC for VMS-specific extensions */
+# ifdef __DECC
+# pragma message disable (GLOBALEXT,NOSHAREEXT,READONLYEXT)
+# endif
+# define EXT globalref
+# define dEXT globaldef {"$GLOBAL_RW_VARS"} noshare
+# define EXTCONST globalref
+# define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
+#else
+# if defined(WIN32) && !defined(PERL_STATIC_SYMS) && !defined(PERL_OBJECT)
+# ifdef PERLDLL
+# define EXT extern __declspec(dllexport)
+# define dEXT
+# define EXTCONST extern __declspec(dllexport) const
+# define dEXTCONST const
+# else
+# define EXT extern __declspec(dllimport)
+# define dEXT
+# define EXTCONST extern __declspec(dllimport) const
+# define dEXTCONST const
+# endif
+# else
+# 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
+# endif
+#endif
#undef INIT
#define INIT(x)