Well, we can take this either by the letter: "If you have any use for them, please use them.". Did so. Or, we can use it in the way it appears to be ment, which seems to be indicated quite well by the word "copyleft".
Anyway, I wrote the original author a mail and asked for his explicit permission, to mail to me or to this list.
Magnus
Rich Holton wrote:
IANAL, but it sounds to me like this is incompatible with GFDL, since this would only allow redistribution free of charge. Under GFDL, the documentation may be sold.