--- Makefile.orig	Wed Apr 29 20:37:08 1998
+++ Makefile	Wed Apr 29 20:36:37 1998
@@ -8,7 +8,7 @@
 #CPPFLAGS=-I/usr/include/bsd -D_BSD_SOURCE -DIOSAFE
 CPPFLAGS=-D_BSD_SOURCE 
 
-CFLAGS=-g
+CFLAGS=-O2 -Dsig_t=sigset_t
 SRCS=	version.c aux.c cmd1.c cmd2.c cmd3.c cmdtab.c collect.c dotlock.c \
 	edit.c fio.c getname.c head.c v7.local.c lex.c list.c main.c names.c \
 	popen.c quit.c send.c strings.c temp.c tty.c vars.c