-extern Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname;
-extern Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime;
-extern Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs;
-extern Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtpgid, Qcstime;
-extern Lisp_Object Qtime, Qctime;
-extern Lisp_Object QCspeed;
-extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven;
-extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary;
+/* Exit statuses for GNU programs that exec other programs. */
+enum
+{
+ EXIT_CANCELED = 125, /* Internal error prior to exec attempt. */
+ EXIT_CANNOT_INVOKE = 126, /* Program located, but not usable. */
+ EXIT_ENOENT = 127 /* Could not find program to exec. */
+};