[libcxx-dev] Problem installing libcxx and libcxxabi using Bootstrapping on Amazon Linux 2

[Raul Tambre via libcxx-dev]

I rather meant appending. I'd imagine plv8 might require linking rt and the 
explicit standard flag.

 > Also, could you please elaborate what is meant by "It might be easier to 
simply use libstdc++ though"

Presumably Amazon Linux uses libstdc++. Instead of using libc++ for plv8 and 
having to compile it, install it and make sure everything else is built with it 
too, you could simply use the system's (i.e. remove the -lc++).