i've found that: * if all you need is a toolchain, go with crosstool-ng. * if you want a toolchain and a bootable kernel with busybox and dropbear for a popul

i've found that: * if all you need is a toolchain, go with crosstool-ng. * if you want a toolchain and a bootable kernel with busybox and dropbear for a popular chipset, go with buildroot. * if you want buildroot plus flexibility in every direction (at the cost of configuration pain), go with yocto. * if you've outgrown even yocto, you're back to crosstool-ng and rolling your own build/bundle system.