Apache log4php project just recieved a nice contribution which is unfortunately licensed under GPL (not specified whether v2 or v3). Sample here:
I was wandering what are our options. I believe we may convince the contributor to change the license, but is that the only possibility? Can he sign over the rights for us to relicense the work or something similar? (IANAL and am a bit clueless)
We are also considering to ask the contributor to sign the ICLA since it's a somewhat larger contribution than we usually get.