comment "aufs-util needs a linux kernel and a toolchain w/ threads" depends on BR2_USE_MMU depends on !BR2_LINUX_KERNEL || !BR2_TOOLCHAIN_HAS_THREADS config BR2_PACKAGE_AUFS_UTIL bool "aufs-util" depends on BR2_USE_MMU depends on BR2_LINUX_KERNEL depends on BR2_TOOLCHAIN_HAS_THREADS help Aufs command line utilities. Needs a kernel with aufs support. A kernel extension package is available. http://sourceforge.net/p/aufs/aufs-util/ if BR2_PACKAGE_AUFS_UTIL config BR2_PACKAGE_AUFS_UTIL_VERSION string "aufs-util version" default "" help The version you choose must match that of the aufs support in your kernel. Usually, this is aufs3.x for 3.x kernels and aufs4.x for 4.x kernels. Usually, the sha1 of the cset you want to use; avoid using a branch name as this yields non-reproducible builds. See the following resources to see what versions are available: https://sourceforge.net/p/aufs/aufs-util/ci/master/tree/ endif