This directory contains third-party dependencies used in various components of LLVM. Integrating a new third-party dependency generally requires it to be licensed under the Apache-with-LLVM-exception license. For integrating code under other licenses, please follow the process explained in the LLVM Developer Policy.
In particular, due to its non-LLVM license, the Boost.Math third-party dependency can exclusively be used within the libc++ compiled library as discussed in this RFC. Do not use it in other parts of LLVM without prior discussion with the LLVM Board (and update this documentation).