--- stack/stack.h	2002/03/10 08:51:31	1.7
+++ stack/stack.h	2002/03/10 10:06:36	1.9
@@ -35,7 +35,13 @@
     list
   } type:4;			/* Type of stack element */
 
-  int gc_garb:1;
+  union {
+    struct {
+      unsigned int mark:1;
+      unsigned int protect:1;
+    } flag;
+    unsigned int no_gc:2;
+  } gc;
 
   union {
     void *ptr;			/* Pointer to the content */
@@ -69,7 +75,6 @@
    defined symbols */
 typedef struct {
   stackitem *gc_ref;
-  stackitem *gc_protect;
   int gc_limit, gc_count;
 
   stackitem *head;		/* Head of the stack */
@@ -140,8 +145,8 @@
 extern void readline(environment*);
 extern void sx_72656164(environment*);
 extern void foreach(environment*);
-void protect(environment*, value*);
-void unprotect(environment*);
+void protect(value*);
+void unprotect(value*);
 extern void copying(environment*);
 extern void warranty(environment*);
 extern void sx_2a(environment*);