--- stack/stack.h	2002/03/21 03:19:32	1.19
+++ stack/stack.h	2002/03/27 19:53:01	1.20
@@ -180,3 +180,4 @@
 extern void cons(environment*);
 extern void assq(environment*);
 void assocgen(environment*, funcp);
+extern void sx_646f(environment *);