Include a sentence in the top pointing to the new docs.

pgbuiltin.3 is obsolete for sure, and libpq.3 can become so since the
 size and scope of this man page is not appropriate in a man page format.

src/man/libpq.3

 .\" This is -*-nroff-*-
 .\" XXX standard disclaimer belongs here....
-.\" $Header: /cvsroot/pgsql/src/man/Attic/libpq.3,v 1.23 1998/08/09 02:59:33 momjian Exp $
+.\" $Header: /cvsroot/pgsql/src/man/Attic/libpq.3,v 1.24 1998/08/15 16:36:21 thomas Exp $
 .TH LIBPQ INTRO 08/08/98 PostgreSQL PostgreSQL
 .SH DESCRIPTION
+Current documentation for this topic is available in the new Programmer's Guide
+chapter on libpq.
+This man page is obsolete, though in sync with the Programmer's Guide as of 1998/08/15.
+.PP
 Libpq is the programmer's interface to Postgres.  Libpq is a set of
 library routines which allows
 client programs to pass queries to the Postgres backend

src/man/pgbuiltin.3

 .\" This is -*-nroff-*-
 .\" XXX standard disclaimer belongs here....
-.\" $Header: /cvsroot/pgsql/src/man/Attic/pgbuiltin.3,v 1.11 1998/06/24 13:21:29 momjian Exp $
+.\" $Header: /cvsroot/pgsql/src/man/Attic/pgbuiltin.3,v 1.12 1998/08/15 16:36:22 thomas Exp $
 .TH PGBUILTIN INTRO 04/01/97 PostgreSQL PostgreSQL
 .PP
 .SH "DESCRIPTION"
+This man page is obsolete as of 1998/03/01.
+Current documentation for this topic is available in the new User's Guide
+chapter on data types.
+.PP
 This section describes the data types, functions and operators
 available to users in Postgres as it is distributed.
+
 .PP
 .SH "PGBUILTIN TYPES"
 Built-in types are installed in every database.