14267d398f
These tools require a bootstrap llvm-tblgen/clang-tblgen and that cannot be built with the current make infrastructure: the config header is not correct for Linux/macOS and we don't include the CMakeLists.txt in contrib so we can't generate one that would be correct. Reviewed By: emaste, imp, dim Differential Revision: https://reviews.freebsd.org/D14245