Re: ReRegarding iraf
On Mon, Jan 10, 2005 at 11:35:07AM -0500, Glenn Maynard wrote:
> On Mon, Jan 10, 2005 at 11:21:24AM -0500, Justin Pryzby wrote:
> > IRAF has a kind of custom government license which was previously
> > decided  to be free. IRAF wants to link with NCAR which is (now)
> > available under the GPL. Is that allowed, even though IRAF is not
> > GPL? IRAF is not a "derivitive" of NCAR, although the resulting
> > executable binaries would be, I guess. GPL seems to say so:
> You can always link GPL material with non-GPL material, so long as that
> other work is GPL-compatible.
What defines GPL compatibility? Modify and distribute?