-The most notable and common extra restriction found in free software
-licences is the `obnoxious BSD advertising clause' (see Richard
-Stallman's article on the subject, available from www.gnu.org) and the
-endorsement restriction.
-
-The problem with the advertising clause isn't that the sentence
-required, referring the the Regents of the UC Berkeley, is awkward.
-The problem is that if everyone contributing to a large project gets
-such a mention the number of sentences required becomes very large;
-however, it is unfair for some people to get credit and others not to.
-
-I disapprove of these clause, but I recognise that it may be difficult
-for some people to get them removed from particular programs.
-
-So, I hereby make an extension to my licence for adns:
-
- You may alternatively distribute adns under the GNU GPL version 2
- with the following banner and either one or both of the following
- additional restrictions, to be inserted at the end of section 1:
-
- ADDITIONAL RESTRICTIONS:
- (The permissions granted in this licence only apply if you comply
- with the following restrictions:)
-
- (a) All advertising materials mentioning features or use of the Program
- (or a work based on the Program, GPL section 2) must display the
- following acknowledgement for each author, copyright holder or
- group of authors or copyright holders:
-
- This product includes software developed by PERSON OR GROUP.
-
- where PERSON OR GROUP is the name of the (group of) authors or
- copyright holders, in the form in which they reasonably wish
- themselves to be identified in such acknowledgements. A
- reasonable alternative form of words must be used if requested
- by the person or group.
-
- The desires of the persons or groups are to be inferred from
- statements made about the desired form of such acknowledgements
- by these persons or groups in their own copyright notices and
- licences. Such statements are to be considered part of the
- appropriate copyright notice that the GPL requires you to
- publish (section 1).
-
- This credit must be given for every author and copyright holder
- of the Program or the work based on the Program, in so far as it
- reasonably possible to determine who the author(s) and copyright
- holder(s) are.
-
- (b) None of the names of the copyright holders and authors of the
- Program or works based on the Program may be used to endorse or
- promote the Program or works based on the Program without
- specific prior written permission.
-
- Any rephrasing of this restriction provided by authors or
- copyright holders in their copyright notices is to be retained
- as part of the appropriate copyright notice that the GPL
- requires you to publish (section 1).
-
-
---- Ian Jackson 9.5.1999