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Re: ReRegarding iraf

On Mon, Jan 10, 2005 at 12:08:08PM -0500, Justin Pryzby wrote:
> It is maybe complicated than I let on; IRAF includes code from NCAR
> 1.00, but under a nonfree license.  NCAR 4.X is GPL, and includes
> mostly-minor differences (some bugfixes, I think, and some changes
> that the IRAF group made).  I contacted NCAR about making a statement
> that 1.00 was available under the GPL, but thats an impossibility,
> because they don't want the overhead of making source code available
> and similar.  So, I figure I'll package libncar-graphics, make IRAF
> {,build-}depend on it, and include in the library any changes
> necessary to make IRAF work (possibly as modifications to the code,
> and possibly as separate routines).

If IRAF contains non-free (or rather, GPL-incompatible code, or code
without source), you can't link GPL code against it, even through a
shared library.  (I'm not sure if this is what you're suggesting;
if you're just eliminating the non-free code entirely, that's fine,
of course.)

Glenn Maynard

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