Version 3.3.3 is available upstream. Please consider updating! It seems that version 3.3.3 is available upstream, while the latest version in the Gentoo tree is 3.0.3. You think this warning is false? Read more about it here.
suitesparseconfig-7.0.0 fails to build with multilib enabled because of dependencies that cannot be satisfied. All the other packages require it. Bug #908851.
AMD is a set of routines for ordering a sparse matrix prior to Cholesky
factorization (or for LU factorization with diagonal pivoting). There
are versions in both C and Fortran.