Re: Questions about "configure" and "native graphics"

[Julien Bect]

Le 21/04/2015 18:37, Julien Bect a écrit :
> > > When I configure with "--without-fltk", I still end up with both "qt"
> > > and "gnuplot" available as graphics toolkits.
> >
> > That's what should happen.  The warning message is just bad. Please 
> > feel free to suggest some better way of wording it.
>
> Concerning the first warning:
>
> configure: WARNING: --without-fltk specified.  Native graphics will be 
> disabled.
>
> I think that it should simply be removed, shouldn't it ?  Since 
> "native graphics" are also available through the "qt" toolkit, simply 
> using --without-fltk doesn't disable native graphics.
>
>
> Concerning the second warning:
>
> configure: WARNING: I didn't find the necessary libraries to compile 
> native
> configure: WARNING: graphics.  It isn't necessary to have native 
> graphics,
> configure: WARNING: but you will need to have gnuplot installed or you 
> won't
> configure: WARNING: be able to use any of Octave's plotting commands
>
> if I understand correctly it is warning me that the "qt" toolkit will 
> not work since I do not have some required libraries (which ones, I 
> don't know yet) for native graphics. 

I just read some bits of ./configure.ac to (try to) understand: the 
warning message is indeed very misleading in this case.

Actually, configure didn't fail to find any "necessary library to 
compile native graphics". It just didn't search.

The reason is that, because I'm using --without-fltk, the 
native_graphics variable is automatically set to "no".