4.3BSD/usr/contrib/spms/src/lib/libspms/test/pperror.a

!<arch>
Ipperror        418696412   968   27    100644  0         `
Opperror        418696412   968   27    100644  45        `
Tpperror: UNKNOWN: No such file or directory

Tpperror.c      418696414   968   27    100644  240       `
/*
 * pperror()
 */
#include <stdio.h>

char *PGN = "Tpperror";			/* program name */

main()
{
	FILE *fopen();			/* open a file */
	FILE *fp;			/* file stream */

	if ((fp = fopen("UNKNOWN", "r")) == NULL)
		pperror("UNKNOWN");
	exit(0);
}