1BR2_arm=y 2BR2_STATIC_LIBS=y 3BR2_TOOLCHAIN_EXTERNAL=y 4BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y 5BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y 6BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-static-2020.11.2.tar.bz2" 7BR2_TOOLCHAIN_EXTERNAL_GCC_9=y 8BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_4=y 9BR2_TOOLCHAIN_EXTERNAL_LOCALE=y 10# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set 11BR2_TOOLCHAIN_EXTERNAL_CXX=y 12