+#if defined (atarist)
+/* The Atari operating system doesn't have a dynamic stack. The
+ stack size is determined from this value. */
+long _stksize = 64 * 1024;
+#endif
+
+#if defined(PERL_GLOBAL_STRUCT_PRIVATE)
+/* The static struct perl_vars* may seem counterproductive since the
+ * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
+ * that this static is not in the shared perl library, the globals PL_Vars
+ * and PL_VarsPtr will stay away. */
+static struct perl_vars* my_plvarsp;
+struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
+#endif
+
+#ifdef NO_ENV_ARRAY_IN_MAIN
+extern char **environ;