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