Re: [Gnuplot-info] Current CVS & older releases

[Hans-Bernhard B. <HBB...@t-...>]

Dr. Ing. Dieter Jurzitza wrote:

> 1.) _if_ one runs "all.dem" (or any of the related demos) from a location 
> where the user cannot write, the demos fail. This is caused by logfiles being 
> written to the current location rather than to /tmp. I think it would _really_ 
> make sense to ensure that unexperienced users may run the demos flawlessly 
> from whereever they are actually. The patch called gnuplot-4.3.0-demo.dif 
> along with this email cares for this issue.

The patch would also break the demos completely on all platforms that 
don't have /tmp, or where /tmp does not serve the same purpose as it 
does on UNIX.  I find that price too high.

> 2.) to access the locally installed demo a user is forced to know about 
> loadpath. 

No.  They can just 'cd' into the directory holding the demos and run 
them from there.  Or they can copy the entire demo collection to their 
own workspace and play with them there.

> Consequently I added an option to define a default loadpath _not_ impacting 
> any other loadpath through the compile time define GNUPLOT_LIB_DEFAULT. So any 
> distributor may help his users by simply opening the path to running the demos 
> without forcing further knowledge about gnuplot. (gnuplot-4.3.0-
> loadpathdefault.dif)

I think that's trying to solve the problem from the wrong end. 
Distributors worried about that can just preset the environment variable 
GNUPLOT_LIB.