-void volatile _exit __P((int));
-int access __P((const char *, int));
-u_int alarm __P((u_int));
-int chdir __P((const char *));
-int chown __P((const char *, uid_t, gid_t));
-int close __P((int));
-char *cuserid __P((const char *));
-int dup __P((int));
-int dup2 __P((int, int));
-int execl __P((const char *, const char *, ...));
-int execle __P((const char *, const char *, ...));
-int execlp __P((const char *, const char *, ...));
-int execv __P((const char *, char * const *));
-int execve __P((const char *, char * const *, char * const *));
-int execvp __P((const char *, char * const *));
-pid_t fork __P((void));
-long fpathconf __P((int, int)); /* not yet */
-char *getcwd __P((char *, size_t));
-gid_t getegid __P((void));
-uid_t geteuid __P((void));
-gid_t getgid __P((void));
-int getgroups __P((int, gid_t *));
-char *getlogin __P((void));
-pid_t getpgrp __P((void));
-pid_t getpid __P((void));
-pid_t getppid __P((void));
-uid_t getuid __P((void));
-int isatty __P((int));
-int link __P((const char *, const char *));
-off_t lseek __P((int, off_t, int));
-long pathconf __P((const char *, int)); /* not yet */
-int pause __P((void));
-int pipe __P((int *));
-ssize_t read __P((int, void *, size_t));
-int rmdir __P((const char *));
-int setgid __P((gid_t));
-int setpgid __P((pid_t, pid_t));
-pid_t setsid __P((void));
-int setuid __P((uid_t));
-u_int sleep __P((u_int));
-long sysconf __P((int)); /* not yet */
-pid_t tcgetpgrp __P((int));
-pid_t tcsetpgrp __P((int, pid_t));
-char *ttyname __P((int));
-int unlink __P((const char *));
-ssize_t write __P((int, const void *, size_t));
+__dead void
+ _exit __P((int));
+int access __P((const char *, int));
+unsigned int alarm __P((unsigned int));
+int chdir __P((const char *));
+int chown __P((const char *, uid_t, gid_t));
+int close __P((int));
+size_t confstr __P((int, char *, size_t));
+int dup __P((int));
+int dup2 __P((int, int));
+int execl __P((const char *, const char *, ...));
+int execle __P((const char *, const char *, ...));
+int execlp __P((const char *, const char *, ...));
+int execv __P((const char *, char * const *));
+int execve __P((const char *, char * const *, char * const *));
+int execvp __P((const char *, char * const *));
+pid_t fork __P((void));
+long fpathconf __P((int, int));
+char *getcwd __P((char *, size_t));
+gid_t getegid __P((void));
+uid_t geteuid __P((void));
+gid_t getgid __P((void));
+int getgroups __P((int, gid_t []));
+char *getlogin __P((void));
+pid_t getpgrp __P((void));
+pid_t getpid __P((void));
+pid_t getppid __P((void));
+uid_t getuid __P((void));
+int isatty __P((int));
+int link __P((const char *, const char *));
+off_t lseek __P((int, off_t, int));
+long pathconf __P((const char *, int));
+int pause __P((void));
+int pipe __P((int *));
+ssize_t read __P((int, void *, size_t));
+int rmdir __P((const char *));
+int setgid __P((gid_t));
+int setpgid __P((pid_t, pid_t));
+pid_t setsid __P((void));
+int setuid __P((uid_t));
+unsigned int sleep __P((unsigned int));
+long sysconf __P((int));
+pid_t tcgetpgrp __P((int));
+int tcsetpgrp __P((int, pid_t));
+char *ttyname __P((int));
+int unlink __P((const char *));
+ssize_t write __P((int, const void *, size_t));