--- stack/stack.h	2002/03/14 10:39:11	1.14
+++ stack/stack.h	2002/03/16 19:09:54	1.15
@@ -30,6 +30,7 @@
 /* A value of some type */
 typedef struct {
   enum {
+    empty,			/* The empty list */
     integer,
     tfloat,
     string,
@@ -84,9 +85,6 @@
 /* An environment; gives access to the stack and a hash table of
    defined symbols */
 typedef struct {
-  stackitem *gc_ref;
-  int gc_limit, gc_count;
-
   value *head;			/* Head of the stack */
   hashtbl symbols;		/* Hash table of all variable bindings */
   int err;			/* Error flag */
@@ -95,6 +93,11 @@
 				   read from in_string */
   FILE *inputstream;		/* stdin or a file, most likely */
   int interactive;		/* print prompts, stack, etc */
+
+  /* Garbage Collector stuff*/
+  stackitem *gc_ref;		/* Stack of all allocated values */
+  int gc_limit;			/* Run GC when this much is allocated */
+  int gc_count;			/* Amount currently allocated */
 } environment;
 
 /* A type for pointers to external functions */