Version 0.13.0 is available upstream. Please consider updating! It seems that version 0.13.0 is available upstream, while the latest version in the Gentoo tree is 0.12.0. You think this warning is false? Read more about it here.
SymEngine is a standalone fast C++ symbolic manipulation
library. Optional thin wrappers allow usage of the library from R,
Python, Julia, Ruby, Haskell.