Experimental Physics and
Industrial Control System

[email protected] ( Kay-Uwe Kasemir ) · Tue, 7 May 96 08:38:01 MDT

Dear Reader:

Andy Foster wrote:

>I would like to use the TCL/Tk interface to Channel Access.
>In my 'extensions' tree, I have the following directories:
>
>tcl 
>tcl_et 
>tcl_it
>tcl_select
>
>As I understand it, I need to run something called aps_wish
>(which is under tcl).
>I have been trying to build this but ran into problems because not
>all of the TCL/Tk libraries appear to be available.
>In particular, I do not have:
>DPLIB = $(TK_TCL)/tcl-dp       or
>BLTLIB = $(TK_TCL)/tcl-blt/src or 
>the library associated with -ldpnetwork.
>
>If anyone can explain the differences between each of the tcl 'extensions' 
>above and can tell me which libraries I need to build them, I would be very
>grateful.
>

I managed to build "et_wish" from the extensions/tcl_et sources.
In addition, I needed tcl7.3, tk3.6, tcl-dp3.2 and blt1.3.
If you use the default config. for the tcl sources, it will be installed
in /usr/local/include and /usr/local/lib/tcl, /usr/local/lib/tk ...,
so you have to change the $(TK_TCL)-related defines in Makefile.Unix
a little bit. The dpnetwork-lib. is part of tcl_et.

There is also a new tcl-ca-extension called tclCa (C.Saunders),
and you may try to build it with the never tcl versions
(e.g. tcl7.4, tk4.0, tcl-dp3.4, btl1.9),
but when I tried it I found an error in dp_filehandler
(in all versions tcl-dp>3.2) when used on non-sockets (e.g. named pipes)
which made the new tcl versions useless for my specific task. 
I managed to fix this so that it works in principle but I still get error
messages. I reported this to the tcl-dp-error-mailinglist without
answer so far.

Unfortunately the different parts of tcl (tcl,tk,dp,blt,...) are kept in
different places on the net and only distinct versions will build together.
I think it would be a good idea if a site that hold the EPICS-tcl-extensions
also offered the tcl-bundle needed to build everything.
If this is already the case and I was just unable to understand it,
I apologize.

-Kay

---------------------------------------------------------------------
[email protected]
Kay-Uwe Kasemir                 AOT-8, MS H820
                                Los Alamos National Laboratory
Tel. (505) 665 8891             Los Alamos, NM 87545

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System