- --with-build-sysroot=/ \
- --with-sysroot=%{_prefix}/%{gcc_target_arch}%{?canonical_target_abi:%canonical_target_abi} \
- --with-gxx-include-dir=%{_prefix}/%{gcc_target_arch}%{?canonical_target_abi:%canonical_target_abi}/usr/include/c++/%{gcc_dir_version} \