From: Alexander Grund (alexander.grund_at_[hidden])
Date: 2020-09-24 12:20:11
> Configure checks that require source files typically do not check for
> C++ version or features. For that there are already pre-defined rules
> in Boost.Config.
I had the need for one: Moveable streams which are C++11 but not
implemented by all stdlibs -.-
>
> To me, the existing practice (using config top level directory) seems
> fine. We might as well document it.
+1 I see 7 other libs doing that, so making it official seems good