Re: demos

[Daniel J S. <dan...@ie...>]

Petr Mikulik wrote:
>>>Unfortunately, this is not portable. I've just tried a windows version
>>>compiled with all of the "default" #defines in makefile&config.mgw,
>>>including IMAGE; but its "show version long" reports only:
>>>
>>>Compile options:
>>>+READLINE -LIBREADLINE +GD_PNG +GD_TTF -NOCWDRC +USE_MOUSE
>>>
>>>and thus it is not updated to options set from within config.h.
>>>Cannot the string for the "compiled options" be concanated according to
>>>#define's?
>>
>>I see no windows-specific code in show_version(), so I am at
>>a loss to explain how this could go wrong.
> 
> 
> I'm sorry, it was a false alarm. I was launching wgnuplot from July ... but 
> 2004 on this computer ... so all is fine, and I vote for the proposed new 
> GPVAL_.

So it did what it was supposed to do and you misinterpretted.  That's the developers trap: always doubting if thing are programmed correctly. :-)

It seemed to work for me, very useful, good idea Ethan.  And the sure-fired conditional script in all.dem is the way I'd go.  (Remember, part of scripts is to be tutorial and from the users standpoint that is helpful to see.)

I will keep thinking about future compatibility issues, but I think it should be fine...  Couple things.  First, could this "gnuplot-defined variables" be made a permanent thing?  I think I've been asked if gnuplot somehow could return its version.  (The trick I use now is to lauch gnuplot, get that startup info and sort through that looking for the version.  Or is there already a better way?)...  Second, is what you've done, Ethan, easy enough so that a user might be able to program their own special version of gnuplot and add a custom variable to identify their version?  Or don't we want to encourage that sort of thing?)

Dan