The 08/20/2020 13:59, Vasee Vinayagamoorthy wrote:
> +# Also require C++11 for building code generation tools.
> +# Do nothing if "${build}" = "${host}", because in this case
> +# CXX_FOR_BUILD="\$(CXX)", and $CXX is already set to the correct value
> above.
> +if test "${build}" != "${host}"; then
> + saved_CXX=$CXX
> + saved_CXXCPP=$CXXCPP
> + CXX=$CXX_FOR_BUILD
> + CXXCPP=
> + AX_CXX_COMPILE_STDCXX(11)
> + CXX="$CXX -std=c++11"
> + CXX_FOR_BUILD=$CXX
> + CXX=$saved_CXX
> + CXXCPP=$saved_CXXCPP
> +fi
i think AX_CXX_COMPILE_STDCXX(11) should
set CXX correctly (it seems it would set
it to "g++ -std=gnu++11" instead of
"g++ -std=c++11" but either should work)
please look at the top level config.log
i think you should look for
"checking whether g++ supports C++11 features with -std=gnu++11"
and that check should be successful.
