This a copy from open source fiasco community.

ATTENTION: 1 About building 1.1 How to build. Please read "README" beside this file(README.md). 1.2 Skip l4linux When build this project, add export SKIP_L4LINUX_ARM_BUILD="SKIP" to your console, or you will receive a building error. The var will skip building l4linux which was removed from this project.