Index: configure.ac
===================================================================
diff -u -N -r9624c180d7bccfdbcc249002e495fda4e3664aff -re5837b2b6a65987c826cba577fc4cab810881375
--- configure.ac	(.../configure.ac)	(revision 9624c180d7bccfdbcc249002e495fda4e3664aff)
+++ configure.ac	(.../configure.ac)	(revision e5837b2b6a65987c826cba577fc4cab810881375)
@@ -11,9 +11,13 @@
 # for this package, and can be a relative path, such as:
 #
 #--------------------------------------------------------------------
+AC_PREREQ([2.69])
+
 define(NsfVersion, 2.0b6)
 AC_INIT([nsf],[NsfVersion])
 
+AC_CONFIG_MACRO_DIR([m4])
+
 #--------------------------------------------------------------------
 # Call TEA_INIT as the first TEA_ macro to set up initial vars.
 # This will define a ${TEA_PLATFORM} variable == "unix" or "windows".