The CCP4 license does explicitly allow you to redistribute library code
Phil
On 3 Jul 2007, at 20:09, Michel Fodje wrote:
> On Tue, 2007-07-03 at 10:54 -0700, Ethan Merritt wrote:
>> Not at all. Consider all those users of GPL programs running on
>> Windows. The developers of cygwin, mplayer, etc have no right to
>> redistribute Windows itself.
> Programs running under windows are not derivative works of Windows
> otherwise software developers will require a license from Microsoft
> to develop windows software. Simply linking to system libraries
> does not make a program a derivative as far as the GPL is
> concerned. The only thing the GPL requires is that the users of the
> software receive the same rights to the software that you received
>> They do have the same rights. They can use it, modify it, and
>> redistribute it. They may or may not be permitted to distribute
>> 3rd party libraries with it, but that was true of the original
>> distributor also.
> The specific rights that must be transferred with the software are:
> 1 - The freedom to run the program, for any purpose (freedom 0)
> 2 - The freedom to study how the program works, and adapt it to
> your needs (freedom 1). Access to the source code is a precondition
> for this.
> 3 - The freedom to redistribute copies so you can help your
> neighbor (freedom 2).
> 4 - The freedom to improve the program, and release your
> improvements to the public, so that the whole community benefits
> (freedom 3). Access to the source code is a precondition for this.
>
> If you distribute software that, in whole or in part does not
> convey all those freedoms, it is a violation of the GPL if you use
> GPL code in it. Unless of course you are the original author of all
> the GPL code, in which case it does not make sense to distribute it
> under the GPL. Distributing sofware under the GPL license implies
> that the recipients receive all those rights.
>> Well, there is of course one respect in which the rights are
>> different. The original author retains the copyright itself, and
>> consequently the right to issue other non-exclusive licenses. The
>> recipient of GPL code does not obtain a right to re-license.
> The GPL (CopyLeft) is only concerned about the 4 freedoms (rights)
> of users mentioned above. The rights of the author are taken care
> of by copyright law.
>
> /Michel
>
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