CMAKE_FASTBUILD_CLANG_GCC_UPDATE_XLANG_ARG

CMAKE_FASTBUILD_CLANG_GCC_UPDATE_XLANG_ARG

.. versionadded:: 4.2

Enables FASTBuild's ClangGCCUpdateXLanguageArg option.

See the FASTBuild Compiler() documentation <https://www.fastbuild.org/docs/functions/compiler.html>_ for more information.