[Plplot-devel] tcl binding now works on AT branch

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

Actually the AT tcl binding was fine last night, but I just didn't know it.

I had a tough time finding what the problem was because somebody stripped
the error messages out of tclAPI.c so it just failed silently when the
extended search failed.  That is not a good situation since the extended
search is still unreliable.  This silent failure may be the reason why
nobody seems to be seriously trying the fundamentally important tclsh (or
wish) methods of running plplot commands.

Turns out the extended search does not work for tclsh if you use any install
locations other than /usr and /usr/local/plplot.  For AT tests, I happened
to be using an install location of /usr/local/plplot_at.  I haven't actually
tested the new code on /usr/local/plplot because I have my comparison tree
there from MAIN HEAD, but setting PL_LIBRARY to
/usr/local/plplot_at/lib/plplot5.1.0/tcl fixed the search problem, and after
that change several tcl examples looked good on AT for the both the pltcl
and tclsh methods.

Alan

email: ir...@be...
phone: 250-727-2902	FAX: 250-721-7715
snail-mail:
Dr. Alan W. Irwin
Department of Physics and Astronomy,
University of Victoria, P.O. Box 3055,
Victoria, British Columbia, Canada, V8W 3P6
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