extern void clear_auto_gc_trigger(void);
extern int maybe_gc_pending;
-extern int gc_thread_pid;
+
+static inline int fixnump(lispobj obj) {
+ return((obj &
+ (LOWTAG_MASK &
+ (~(EVEN_FIXNUM_LOWTAG|ODD_FIXNUM_LOWTAG))))
+ == 0);
+}
+
#endif /* _GC_H_ */