Copyright for readline/editline packages

Thorkil Naur naur at
Sat Jan 12 09:37:04 EST 2008


Indeed an interesting question. Although I am no licensing expert, I guess 
that the intention of the GPL is that if you copy the Haskell readline code 
which is under the GPL and modify it, then the result will also be under the 

Independent development is a possibility, unless you can get hold of the 
copyright holder.

Best regards

On Saturday 12 January 2008 01:19, Judah Jacobson wrote:
> Hi all,
> As mentioned before, I'm putting together an editline package which
> will provide a subset of the APIs from the readline package, but be
> BSD-compatible since it links against libedit.
> The licensing for the readline package itself is a little strange --
> it's licensed under the GPL (because it links with libreadline), but
> there's no copyright holder information; and Readline.hsc from that
> package lists "Copyright: (c) unknown".
> I'd like to put the Haskell editline package under BSD3, but most of
> the code will be copied verbatim from the readline package.  How
> should this be attributed/copyrighted?
> Thanks,
> -Judah
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