Re: [Plplot-devel] tkwin.c is now split and I have also reorganized the linking on Linux

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

On Mon, 29 Jul 2002, Vince Darley wrote:

> >>
> A separate tkwin_common.c is necessary because both plplotter.c and (the
> new)
> tkwin.c depend on the functions defined in there.
> >>
>
> I have to say, I find this crazy!  It is not possible to use plplotter.c
> without tkwin.c and not possible to use tkwin.c without plplotter.c so,
> please, put them in the same .so!

OK. A quick visual check of the source codes seemed to indicate moving
Plplotter_Init.o, plplotter.o tkwin_common.o from libplplottcltk to
drivers/tkwind_drv.so would work since nothing else in libplplottcltk seems
to depend on anything in those functions.

IMPORTANT *all* these functions have to be moved since Plplotter_Init.o
depends on plplotter, and if you leave it behind you create a
cross-dependency and this affects the wish recipe, see below.

Indeed when I tried that locally the -dev tkwin worked fine, i.e., gave its
usual message without any linking troubles at all.

Same for plserver.  runAllDemos.tcl worked fine.

But now the wish recipe we had before doesn't work...

wish
% source pldefaults.tcl
% load libplplottcltkd.so Plplotter
couldn't find procedure Plplotter_Init

Obviously it is looking for  Plplotter_Init inside
libplplottcltkd.so and cannot find it since that has been moved
to tkwind_drv.so.

So now the new wish recipe from plplot/tmp should be

source pldefaults.tcl
load drivers/tkwind_drv.so Plplotter
package provide Plplotter 5.1.0
source runAllDemos.tcl

which works fine and makes sense under the hierarchical linking rules that
are now in place since tkwin depends on and links to libplplottcltk.
However, attempting to find tkwind_drv at its install location of
$prefix/lib/plplot5.1.0/drivers/tkwind_drv.so will cause some trouble.  For
example, you will probably have to specify the complete path name to get it.
Ultimately, this could be solved with a symlink.

Vince, if this is the way you want to go (reuniting tkwin_common with tkwin
and moving Plplotter_Init.o and plplotter.o from libplplottcltk to
drivers/tkwind_drv.so while accepting the wish recipe changes that result)
that is fine with me, but I need direct confirmation from you before I go to
the additional configuration work to make this the permanent solution.

Alan