> The MAME license hasn't changed but it's my understanding that this has been a push > to attribute files to authors
We are going through a process of trying to work that out yes.
> and multi-license them. That is to say, individual > files have been re-licensed or had licenses added to them.
Some people have chosen to allow their code to be used under other licenses, this is not news. The difference is we are being explicit about it.
> He's being a dick, sure, but anyone putting their name and chosen license on a whole > file without doing a full line-by-line code audit to verify ownership is likewise > acting in bad faith.
If you write 99% of a source file and someone else contributes a fix to it then the person who provides the fix doesn't automatically gain copyright. In the same way that if you proof read a book and find a spelling mistake, you don't get any copyright for it.