lispobj arg2);
extern lispobj *component_ptr_from_pc(lispobj *pc);
+extern void fpu_save(void *);
+extern void fpu_restore(void *);
+
+#ifdef LISP_FEATURE_X86
+extern unsigned int * single_stepping;
+extern void restore_breakpoint_from_single_step(os_context_t * context);
+#endif
+
#endif /* __ARCH_H__ */