IIRC, the BSD lawsuits were mostly about userspace stuff, ISTR the kernel was known clean. I wonder how big the license incompatibility was thought to be at tha

IIRC, the BSD lawsuits were mostly about userspace stuff, ISTR the kernel was known clean. I wonder how big the license incompatibility was thought to be at that time to prevent releasing a BSD with a GNU userspace. I don't even know if the GNU stuff was complete enough.