post: 6657 removed references to 6678 and PA from build
drwxr-xr-x - boot_loader
drwxr-xr-x - bttbl2hfile
drwxr-xr-x - hfile2array
drwxr-xr-x - post
drwxr-xr-x - program_evm
drwxr-xr-x - writer