--- a/Makefile.orig	2004-10-16 23:04:50.144563171 -0400
+++ b/Makefile	2004-10-16 23:57:27.639495962 -0400
@@ -2,5 +2,16 @@
 # $FreeBSD: /repoman/r/ncvs/src/usr.bin/leave/Makefile,v 1.5 2002/02/08 22:31:41 markm Exp $
 
 PROG=	leave
+CC ?= gcc
+CFLAGS=
+LDFLAGS=
 
-.include <bsd.prog.mk>
+#.include <bsd.prog.mk>
+
+all: $(PROG)
+$(PROG): leave.o
+	$(CC) $(LDFLAGS) leave.o -o $(PROG)
+leave.o:
+	$(CC) $(CFLAGS) -c leave.c
+clean:
+	rm -f $(PROG) *.o