License compatibility of MS-PL and MS-CL (Was: (RE: Groklaw's OSI item (was: When will CPAL actually be _used_?))

Matthew Flaschen matthew.flaschen at
Wed Aug 29 02:56:05 UTC 2007

Richard Fontana wrote:
> Zac Bowling wrote:
>> However this license should be compatible with GPLv3 with the new
>> license compatibility section. The GPLv3 says "When you release a work
>> based on the Program, you may include your own terms covering added
>> parts for which you have, or can give, appropriate copyright
>> permission, as long as those terms clearly permit all the activities
>> that this License permits, or permit usage or relicensing under this
>> License." 
> That's a quote from the first public draft of GPLv3 (16 January 2006);
> that language does not appear in the final version (or indeed in any of
> the later public drafts).

Thanks.  I didn't notice that.  But it still seems clear that the phrase
"You must license the entire work, as a whole, under this License
[GPLv3]" makes GPLv3 incompatible with MS-PL.

Matt Flaschen

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