On 08/31/2017 02:53 PM, Sandro Mani wrote: > Hi > > While reviewing mingw-cfitsio, we encountered the situation of bison > parser sources [1][2] containing the following: > > /* [... standard GPLv3+ header ...] */ > > /* As a special exception, you may create a larger work that contains > part or all of the Bison parser skeleton and distribute that work > under terms of your choice, so long as that work isn't itself a > parser generator using the skeleton or a modified version thereof > as a parser skeleton. Alternatively, if you modify or redistribute > the parser skeleton itself, you may (at your option) remove this > special exception, which will cause the skeleton and the resulting > Bison output files to be licensed under the GNU General Public > License without this special exception. > > This special exception was added by the Free Software Foundation in > version 2.2 of Bison. */ > > cfitsio is licensed MIT. Is my understanding correct that this special > exception means that these files are also MIT licensed, being > distributed as part of cfitsio, and hence that the license field of the > package only needs to specify MIT? Yes. You may use the bison parser skeleton code under any license terms you wish, assuming cfitsio is not a parser generator (which it does not appear to be). ~tom _______________________________________________ legal mailing list -- legal@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to legal-leave@xxxxxxxxxxxxxxxxxxxxxxx
