These files were taken from the Linux Kernel Configuration System at commit 089b7d890f972f6b649fedc9259f6b93a18fb970 (Feb 4, 2020) and modified for the OpenWrt Buildroot: - Removed nconf, gconf, tests and kernel configuration targets. - Adjusted the Makefile to compile outside the kernel. - Always use default file when running make all{no,mod,yes}config. - Added a 'reset' command to reset config when the target changes. - Allow config reading from & writing to a different file. - Allow 'source' command to use globs to include multiple files. - Don't warn when selecting a symbol with unmet direct dependencies. - Don't write auto.conf and other files under include/ directory. - Reverted a commit to allow use of '/' & '.' in unquoted config symbols. There are too many of those in OpenWrt right now. - Reverted a commit that was issuing a warning when there were more than one help text. This is used in a few packages to use different texts for the menuconfig help, and the ipkg package description. - Reverted an upstream change that avoids writing symbols that are not visible to .config, which breaks OpenWrt busybox's '.config' generation logic. - Treat recursive dependency as a warning only; add a --fatalrecursive option to conf to treat recursive deps as a fatal error. - Use pre-built *.lex.c *.tab.[ch] files by default, to avoid depending on flex & bison. Rebuild/remove these files only if running make with BUILD_SHIPPED_FILES defined For a full list of changes, see the repository at: https://github.com/cotequeiroz/linux/commits/openwrt/scripts/kconfig