1BR2_TOOLCHAIN_EXTERNAL=y 2BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y 3BR2_TOOLCHAIN_EXTERNAL_PATH="$(TOPDIR)/../prebuilts/gcc/linux-x86/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf" 4BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="arm-none-linux-gnueabihf" 5BR2_TOOLCHAIN_EXTERNAL_GCC_10=y 6BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_20=y 7# BR2_TOOLCHAIN_BUILDROOT_INET_RPC is not set 8# BR2_TOOLCHAIN_EXTERNAL_INET_RPC is not set 9BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y 10BR2_TOOLCHAIN_EXTERNAL_CXX=y 11BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS="libgomp.so" 12