--- Makefile.orig	Wed Jun 18 15:27:14 1997
+++ Makefile	Wed Jun 18 15:27:54 1997
@@ -4,7 +4,7 @@
 MANDIR = /usr/man/man1
 EXENAME= in.pop3d
 
-CFLAGS= -O3 -m486 -fomit-frame-pointer -DSHADOWPWD  -DLINUX
+CFLAGS= -O3 -m486 -fomit-frame-pointer -DSHADOWPWD -DLINUX -Dcrypt=pw_encrypt
 
 OBJS	= main.o folder.o util.o apop.o
 LIBS  = -lshadow