Z:gnu-www-ja-license-list--f33554-This is a copyleft free softwa/en

This is a copyleft free software license, incompatible with the GPL. It has an unfortunate condition requiring that derivative works not use or include the name of the original work as a program name, font name or file name. This is acceptable for fonts as fonts can be aliased or renamed using free software tools, but it's very annoying and could be overly burdensome in other contexts.