BR2_mips64el=y BR2_MIPS_NABI64=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/mips64el-ctng_n64-linux-gnu.tar.xz" BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="mips64el-ctng_n64-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