[Plplot-devel] xwin, tk, and tkwin now all work fine as dynamic drivers

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

To get this "historic breakthrough" to work, all you have to do is make the
changes to configure.in and dyndrv.in similar to what I indicated before for
the tkwin case, and link the current libplplot against tkwind.drv,
xwind.drv, and tkwind.drv.

Then x01c worked fine with -dev xwin and -dev tk, plserver and wish
worked fine for runAllDemos.tcl, and plserver worked fine for tkdemos.tcl

I thank Vince for a key sentence in his last email that greatly improved my
understanding of linking and which made this breakthrough possible.

I haven't committed the configure.in and dyndrv.in changes since those
changes require hand intervention on the link step to get everything to work
in plplot/tmp. I am not even sure of how to link libplplot so that
plplot/tmp/drivers/*.drv can be found by the dynamic linker from plplot/tmp
before install and $prefix/lib/plplot5.1.0/drivers/*.drv can be found from
anywhere by the dynamic linker after install.  Probably I will have to fool
around with rpath and soname.  Right now I am using symlinks such as

ln -s drivers/tkd.drv libtkd.so

and the -L option and the -ltkd option (which needs that lib prefix and .so
suffix to work) to get libplplot linked properly.

Anybody got a better idea for the proper way to link a library against 3 of
our dynamic drivers?  Ultimately it will do this for the split-out
libtclplplot, instead, but I might as well get it right for libplplot for
now.

I could definitely use some active help here with sorting out the
configuration issues so please let me know if you are interested in
participating in this work.

But the most important news I have to report here is that tk, xwin, and
tkwin can straightforwardly be made dynamic devices contrary to our previous
conclusions on this issue.

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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Linux-powered astrophysics
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