extern void restore_pipeline __P((int));
extern void start_pipeline __P((void));
extern int stop_pipeline __P((int, COMMAND *));
+extern void append_process __P((char *, pid_t, int, int));
extern void delete_job __P((int, int));
extern void nohup_job __P((int));
extern int get_tty_state __P((void));
extern int set_tty_state __P((void));
+extern int job_exit_status __P((int));
+extern int job_exit_signal __P((int));
+
extern int wait_for_single_pid __P((pid_t));
extern void wait_for_background_pids __P((void));
extern int wait_for __P((pid_t));
extern void run_sigchld_trap __P((int));
+extern void freeze_jobs_list __P((void));
extern void unfreeze_jobs_list __P((void));
extern int set_job_control __P((int));
extern void without_job_control __P((void));
extern void init_job_stats __P((void));
extern void close_pgrp_pipe __P((void));
+extern void save_pgrp_pipe __P((int *, int));
+extern void restore_pgrp_pipe __P((int *));
#if defined (JOB_CONTROL)
extern int job_control;