For the short term: Consider updating libpayload in your tree to the latest version while keeping coreboot in your current state. This works since these are really two independent projects.The latest Coreboot I git cloned an hour ago (coreboot v4.0-4632-g4159a80) does compile and link with latest git clone FILO (with some .autogen.sh script changes and taking off USB drivers, since they produce errors, to adapt FILO positioning). Since I cannot use this one (I do not have hooks to use IVB FSP), I need to direct relevant people to make this adjustment and commit these changes for x86 to latest Coreboot git tree.