--- Makefile.orig	2003-08-04 17:32:23.000000000 +0800
+++ Makefile	2014-06-08 23:33:51.093015991 +0800
@@ -3,9 +3,9 @@
 # for details
 
 # Linux 2.4
-OS_CFLAGS=-DNEED_PTY_H                       
+#OS_CFLAGS=-DNEED_PTY_H                       
 # FreeBSD, version unknown
-#OS_CFLAGS=-DNEED_LIBUTIL_H                  
+OS_CFLAGS=-DNEED_LIBUTIL_H                  
 # Solaris, some version of
 #OS_CFLAGS=-DNEED_STRINGS_H -DNEED_LOCAL_FORKPTY_H
 # MacOS X needs libpoll from fink
@@ -23,7 +23,7 @@ OS_OBJECTS=
 # no forkpty in Solaris or MacOS X
 # OS_OBJECTS=forkpty.o
 
-INSTALL_DIR=/usr/local/bin
+INSTALL_DIR=${PREFIX}/bin
 
 # You probably don't need to edit anything below this line