This patch covers several to-do items that I had for libpgtcl:

* It works under both Tcl 7.6 and Tcl 8.0 now.  (The code claims to
  work under Tcl 7.5 as well, but I have no way to test that ---
  if anyone still cares, please check it with 7.5.)

* pg_listen suppresses extra LISTEN commands and correctly sends an
  UNLISTEN when the last listen request for a relation is cancelled.
  (Note this means it will not work with pre-6.4 backends, but that
  was true already because it depends on the current libpq, which
  only speaks protocol 2.0.)

* Added -error option to pg_result so that there's some way to find
  out what you did wrong ;-)

* Miscellaneous cleanups of code comments and overenthusiastic #includes.

BTW, I bumped the package version number from 1.2 to 1.3.  Is this
premature?  Does someone run around and do that routinely before
each pgsql release?

			regards, tom lane

Author: bmomjian

src/interfaces/libpgtcl/libpgtcl.h

@@ -1,12 +1,13 @@
 /*-------------------------------------------------------------------------
  *
  * libpgtcl.h--
- *	  libpgtcl is a tcl package for front-ends to interface with pglite
- *	 It's the tcl equivalent of the old libpq C interface.
+ *
+ *	libpgtcl is a tcl package for front-ends to interface with PostgreSQL.
+ *	It's a Tcl wrapper for libpq.
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: libpgtcl.h,v 1.5 1998/09/01 04:39:53 momjian Exp $
+ * $Id: libpgtcl.h,v 1.6 1998/09/21 01:01:58 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */

src/interfaces/libpgtcl/pgtcl.c

@@ -2,29 +2,28 @@
  *
  * pgtcl.c--
  *
- *	  libpgtcl is a tcl package for front-ends to interface with pglite
- *	 It's the tcl equivalent of the old libpq C interface.
+ *	libpgtcl is a tcl package for front-ends to interface with PostgreSQL.
+ *	It's a Tcl wrapper for libpq.
  *
  * Copyright (c) 1994, Regents of the University of California
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/interfaces/libpgtcl/Attic/pgtcl.c,v 1.12 1998/09/01 04:39:55 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/interfaces/libpgtcl/Attic/pgtcl.c,v 1.13 1998/09/21 01:02:00 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 
 #include <stdlib.h>
 
 #include "postgres.h"
-#include "tcl.h"
 #include "libpgtcl.h"
 #include "pgtclCmds.h"
 #include "pgtclId.h"
 
 /*
  * Pgtcl_Init
- *	  initialization package for the PGLITE Tcl package
+ *	  initialization package for the PGTCL Tcl package
  *
  */
 
@@ -35,7 +34,7 @@ Pgtcl_Init(Tcl_Interp * interp)
 	/*
 	 * finish off the ChannelType struct.  Much easier to do it here then
 	 * to guess where it might be by position in the struct.  This is
-	 * needed for Tcl7.6 and beyond, which have the getfileproc.
+	 * needed for Tcl7.6 *only*, which has the getfileproc.
 	 */
 #if HAVE_TCL_GETFILEPROC
 	Pg_ConnType.getFileProc = PgGetFileProc;
@@ -127,7 +126,7 @@ Pgtcl_Init(Tcl_Interp * interp)
 					  Pg_listen,
 					  (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL);
 
-	Tcl_PkgProvide(interp, "Pgtcl", "1.2");
+	Tcl_PkgProvide(interp, "Pgtcl", "1.3");
 
 	return TCL_OK;
 }