This is a copy of the kconfig code in the kernel (currently 4.17-rc2) tweaked
to suit Buildroot.
To update:
cp -r /usr/src/linux/scripts/kconfig support/kconfig.new
cd support/kconfig.new
# zconf.lex.c and zconf.tab.c needs to be generated by 'make menuconfig'
mv zconf.lex.c zconf.lex.c_shipped
mv zconf.tab.c zconf.tab.c_shipped
rm -rf tests/
cp -a ../kconfig/patches ../kconfig/README.buildroot ../kconfig/.gitignore .
quilt push -a
# Fix any conflict
cd ..
rm -rf kconfig
mv kconfig.new kconfig
Then verify the toplevel targets work:
config
defconfig
menuconfig
nconfig
xconfig
gconfig
oldconfig
chenyf
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