Use the latest version of ax_cxx_compile_stdcxx.m4 from the autoconf archive for C++17 support and handle "17" as the option value in our configure. See https://github.com/wxWidgets/wxWidgets/pull/721
Use the latest version of ax_cxx_compile_stdcxx.m4 from the autoconf archive for C++17 support and handle "17" as the option value in our configure. See https://github.com/wxWidgets/wxWidgets/pull/721