--- /dev/null
+#
+# Copyright (c) 1988 Regents of the University of California.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms are permitted
+# provided that the above copyright notice and this paragraph are
+# duplicated in all such forms and that any documentation, advertising
+# materials, and other materials related to such redistribution and
+# use acknowledge that the software was developed by the University
+# of California, Berkeley. The name of the University may not be
+# used to endorse or promote products derived from this software
+# without specific prior written permission. THIS SOFTWARE IS PROVIDED
+# ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+# WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE.
+#
+# @(#)Makefile 5.1 (Berkeley) %G%
+#
+
+CFLAGS= -O
+LIBC= /lib/libc.a
+SRCS= tr.c
+OBJS=
+MAN= tr.0
+
+all: tr
+
+tr: ${LIBC}
+ ${CC} -o $@ ${CFLAGS} $@.c
+
+clean:
+ rm -f ${OBJS} core tr
+
+cleandir: clean
+ rm -f ${MAN} tags .depend
+
+depend: ${SRCS}
+ mkdep -p ${CFLAGS} ${SRCS}
+
+install: ${MAN}
+ install -s -o bin -g bin -m 755 tr ${DESTDIR}/usr/bin
+ install -c -o bin -g bin -m 444 ${MAN} ${DESTDIR}/usr/man/cat1
+
+lint: ${SRCS}
+ lint ${CFLAGS} ${SRCS}
+
+tags: ${SRCS}
+ ctags ${SRCS}