#ifndef _GC_H_
#define _GC_H_
+typedef signed long page_index_t;
+typedef signed char generation_index_t;
extern void gc_init(void);
extern void gc_initialize_pointers(void);
-extern void collect_garbage(unsigned last_gen);
+extern void collect_garbage(generation_index_t last_gen);
extern void gc_init_tables(void);
extern void clear_auto_gc_trigger(void);
extern int maybe_gc_pending;
-extern int gc_thread_pid;
+
+#include "fixnump.h"
+
+#include "pseudo-atomic.h"
+
#endif /* _GC_H_ */