Add /contrib/pg_standby:

pg_standby is a production-ready program that can be used to
  create a Warm Standby server. Other configuration is required
  as well, all of which is described in the main server manual.

Simon Riggs

contrib/Makefile

@@ -1,4 +1,4 @@
-# $PostgreSQL: pgsql/contrib/Makefile,v 1.70 2006/09/09 04:07:51 tgl Exp $
+# $PostgreSQL: pgsql/contrib/Makefile,v 1.71 2007/02/08 15:09:47 momjian Exp $
 
 subdir = contrib
 top_builddir = ..
@@ -21,6 +21,7 @@ WANTED_DIRS = \
 		oid2name	\
 		pg_buffercache	\
 		pg_freespacemap \
+		pg_standby	\
 		pg_trgm		\
 		pgbench		\
 		pgcrypto	\