[License-discuss] Strong and weak copyleft

[cowan at ccil.org]

Jim Jagielski scripsit:

> So, at least according to
> https://www.gnu.org/philosophy/license-list.html,
> the FSF considers LGPL as weak copyleft.

Looking at the uses of 'weak' on that page suggests that to the FSF,
at least, a weak copyleft license is one that permits the licensed
work to be incorporated in a larger proprietary work, whereas a
strong copyleft license does not (at least in the FSF's opinion).
This seems an appropriate distinction for general use.

Neither of these should be confused with Grave and Perilous Licenses.

-- 
John Cowan          http://www.ccil.org/~cowan        cowan at ccil.org
No,  John.  I want formats that are actually useful, rather than over-
featured megaliths that address all questions by piling on ridiculous
internal links in forms which are hideously over-complex.
        --Simon St. Laurent on xml-dev