-#ifdef __STDC__
-extern SCM scm_alarm (SCM i);
-extern SCM scm_pause (void);
-extern SCM scm_sleep (SCM i);
-extern SCM scm_raise(SCM sig);
-extern void scm_init_signals (void);
-extern void scm_ignore_signals (void);
-extern void scm_unignore_signals (void);
-extern SCM scm_restore_signals (void);
-extern void scm_init_scmsigs (void);
-
-#else /* STDC */
-extern SCM scm_alarm ();
-extern SCM scm_pause ();
-extern SCM scm_sleep ();
-extern SCM scm_raise();
-extern void scm_init_signals ();
-extern void scm_ignore_signals ();
-extern void scm_unignore_signals ();
-extern SCM scm_restore_signals ();
-extern void scm_init_scmsigs ();
-
-#endif /* STDC */
-
-