LLVM contemplates relicensing

The LLVM project is currently distributed under the BSD-like NCSA license, but theproject is considering a change in the interest of better patentprotection. "After extensive discussion involving many lawyers with differentaffiliations, we recommend taking the approach of using the Apache 2.0license, with the binary attribution exception (discussed before), and addan additional exception to handle the situation of GPL2 compatibility if itever arises."