Copyright for readline/editline packages

Judah Jacobson judah.jacobson at
Fri Jan 11 19:19:55 EST 2008

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?


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