# Kernel options config KERNEL string default "none" if BARE_METAL default "linux" if KERNEL_LINUX menu "Target OS" choice bool prompt "Target OS" default KERNEL_LINUX config KERNEL_LINUX bool prompt "Linux" help Build a toolchain targeting systems running Linux as a kernel. config BARE_METAL bool prompt "Bare metal (EXPERIMENTAL)" depends on EXPERIMENTAL help Say 'y' here if you want a simple C compiler with no C library. 'Bare metal' also refer to those programs that run without any kernel. You probably want to say 'y' here if you plan to use your compiler to build only kernels or bootloaders endchoice config KERNEL_VERSION string if KERNEL_LINUX source config/kernel/linux.in endif endmenu