Now it is also possible to use for dot-config configuration:
make nconfig
make xconfig
make gconfig
make menuconfig

kconfig is taken from the linux kernel repo commit v4.8-rc1-19-g81abf25:
e50bd235 Merge tag 'lkdtm-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxSigned-off-by: Adam Wujek <adam.wujek@cern.ch>