--- Makefile.orig	Wed Aug 14 21:37:07 2002
+++ Makefile	Wed Aug 14 21:36:47 2002
@@ -10,7 +10,8 @@
 LDFLAGS = `./guess --libs`
 
 # This ps works for Linux and Solaris, at least
-PS = "/bin/ps -ef"
+#PS = "/bin/ps -ef"
+PS = "/bin/ps -ax"
 
 # For Linux
 #CFLAGS = -Wall -g
@@ -19,7 +20,7 @@
 #CFLAGS = -Wall -g
 #LDFLAGS = -lnsl -lsocket
 
-PREFIX = /usr/local
+PREFIX ?= /usr/local
 BINDIR = $(PREFIX)/bin
 MANDIR = $(PREFIX)/man
 MAN1DIR = $(MANDIR)/man1