BR2_x86_i686=y BR2_TOOLCHAIN_EXTERNAL=y BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/i686-ctng-linux-gnu.tar.xz" BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="i686-ctng-linux-gnu" BR2_TOOLCHAIN_EXTERNAL_GCC_4_8=y BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9=y BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y BR2_TOOLCHAIN_EXTERNAL_CXX=y