toolchain : Create our own toolchain package to save 20% of build time.
shell : Enter a shell inside the chroot, used to tune lfs script
and / or during kernel upgrade to rebuild a new .config
+
+
+Options:
+ --target=[armv5tel|i586] : Cross-compile for this target architecture.
+ Uses the QEMU emulator if needed to virtualise
+ the desired target architecture.
+ Can be permanently set with TARGET_ARCH= in
+ .config.