Re: [Plplot-devel] Prescriptions for running tkdemos.tcl under wish and tcldemos.tcl under tclsh

[Alan W. I. <ir...@be...>]

On Thu, 26 Sep 2002, Maurice LeBrun wrote:

> Alan W. Irwin writes:

>  > (2) As reported yesterday, I could not get tcldemos.tcl to work under tclsh
>  > without setting PL_LIBRARY to /usr/local/plplot/lib/plplot5.1.0/tcl.  I
>  > presume this is also a requirement for running tkdemos.tcl under wish
>  > and runAllDemos.tcl under wish.  But should it be?  Under tclsh and
>  > wish I already execute
>  >
>  > lappend auto_path /usr/local/plplot/lib/plplot5.1.0
>  >
>  > Thus, shouldn't we be able to find the location of everything internally by
>  > scanning through the directories in auto_path?  We have been through so many
>  > variations of the tcl/tk install that I cannot remember clearly any more,
>  > but I believe there were some variations on the theme that did not require
>  > setting PL_LIBRARY, and I hope we can get back to that.
>
> I don't know what you mean here.  Could you write out the steps that generate
> the error so I can look at it?

(1) Clean build and install from CVS (same steps I detailed earlier).

(2) cp -a /usr/local/plplot/lib/plplot5.1.0/examples/ /tmp

(3) cd /tmp/example/tk

(4) Put /usr/local/plplot/bin on PATH (required for -dev tk.  not sure it is
relevant in this case, but that is what I did)

(5) Make sure PL_LIBRARY *not* set (unsetenv PL_LIBRARY under tcsh)

(6) package require Pltk craps out under wish.

wish
% lappend auto_path /usr/local/plplot/lib/plplot5.1.0
/usr/lib/tcl8.3 /usr/lib /usr/lib/tk8.3 /usr/local/plplot/lib/plplot5.1.0
% package require Pltk
Can't find a usable plplot.tcl in the following directories:
    /usr/lib/plplot5.1.0/tcl /usr/lib/plplot5.1.0/tcl /lib/plplot5.1.0/tcl
/usr/library /library /plplot5.1.0/tcl/library /plplot5.1.0/tcl/library



This probably means that plplot wasn't installed properly.

..................

OTOH if I set PL_LIBRARY first, everything works fine.

setenv PL_LIBRARY /usr/local/plplot/lib/plplot5.1.0/tcl
wish
% lappend auto_path /usr/local/plplot/lib/plplot5.1.0
/usr/lib/tcl8.3 /usr/lib /usr/lib/tk8.3 /usr/local/plplot/lib/plplot5.1.0
% package require Pltk
5.1.0
% source tkdemos.tcl
% 1
% 2

etc.

The same story occurs (PL_LIBRARY needs to be set) with tcldemos.tcl under
tclsh (and presumably runAllDemos.tcl under wish).

Do you get good results without PL_LIBRARY being set?  If so, perhaps there
is a bug in my tcl/tk version (which is 8.3.3).

Alan