Re: Bug#173601: ITP: jpgraph -- OO Graph Library for PHP
On Thu, Dec 19, 2002 at 01:34:22PM -0500, Stephen Ryan wrote:
> > On Wed, Dec 18, 2002 at 02:46:21PM -0500, Luis Bustamante wrote:
> > > "JpGraph is released under a dual license. QPL 1.0 (Qt Free
> > > Licensee) For non-commercial, open-source and educational use and
> > > JpGraph Professional License for commercial use."
> Waitaminnit. Maybe I'm missing something here, but isn't the QPL a Free
> Software license?
The QPL option is restricted to "for non-commercial, open-source
and educational use". I'm not sure how free that is, because
"open-source use" is poorly defined.
Also, this license is ambiguous for commercial open-source projects.
Is this an inclusive or an exclusive "and"? The English language
doesn't have proper logic operators, and a judge might opt for the
most conservative interpretation.
If the JpGraph authors intended the text about the QPL to be only
explanatory then it would be best if they make that clear. If it's
intended as a restriction on when the QPL may be used, then I think
that makes it non-free.