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

[Raul Tambre via libcxx-dev]

Per the "ldconfig -v" output you gave previously /usr/local/lib isn't on the 
dynamic linker's search path, but is on ld's.

I'd add /usr/local/lib to the dymanic linker's search path with a config in 
/etc/ld.so.conf.d. Don't forget to run ldconfig afterwards to refresh the cache.