Version 2.0.1 is available upstream. Please consider updating! It seems that version 2.0.1 is available upstream, while the latest version in the Gentoo tree is 1.5.7. You think this warning is false? Read more about it here.
CHiPPS is the COIN-OR High-Performance Parallel Search Framework, a
framework for implementing parallel algorithms based on tree
search. The current CHiPPS architecture consists of three
layers. The Abstract Library for Parallel Search (ALPS) is the base
layer of a hierarchy consisting of implementations of various tree
search algorithms for specific problem types.