$NetBSD: patch-af,v 1.1 2009/08/10 14:18:12 apb Exp $

On some systems, curses.h defines TRUE and FALSE, so conditionalise
them here to avoid compiler complaints about duplicate definitions.

--- lib.h.orig	2009-06-01 18:29:32.000000000 +0200
+++ lib.h
@@ -54,8 +54,12 @@
 #  define N_(a) a
 # endif
 
-# define TRUE 1
-# define FALSE 0
+# ifndef TRUE
+#  define TRUE 1
+# endif
+# ifndef FALSE
+#  define FALSE 0
+# endif
 
 # define HUGE_STRING	5120
 # define LONG_STRING     1024