Install new gcc49-libs, libLLVM and clang. The below instructions are assuming you are doing this on the host you will be building coreclr on. Optionally you can substitute "bmake install" with "bmake package" then copy the packages from "/content/package/All" to the host you will be building coreclr from, then run "pkg_add" to install them.
Create folder to store packages.
# mkdir -p /content/{distfiles,packages}
Edit the /opt/local/etc/mk.conf file.
#