+void *alloca __P((size_t)); /* built-in for gcc */
+ /* getcap(3) functions */
+char *getbsize __P((int *, long *));
+char *cgetcap __P((char *, char *, int));
+int cgetclose __P((void));
+int cgetent __P((char **, char **, char *));
+int cgetfirst __P((char **, char **));
+int cgetmatch __P((char *, char *));
+int cgetnext __P((char **, char **));
+int cgetnum __P((char *, char *, long *));
+int cgetset __P((char *));
+int cgetstr __P((char *, char *, char **));
+int cgetustr __P((char *, char *, char **));
+
+int daemon __P((int, int));
+char *devname __P((int, int));
+int getloadavg __P((double [], int));
+
+extern char *optarg; /* getopt(3) external variables */
+extern int opterr, optind, optopt;