sci@gentoo.org Gentoo Science Project MPIR is an open source multiprecision integer (bignum) library forked from the GMP (GNU Multi Precision) project. It consists of much code from past GMP releases, in combination with much original contributed code. MPIR is constructed by a developer and vendor friendly community of professional and amateur mathematicians, computer scientists and hobbyists. Enables runtime cpudetection (useful for bindist, compatability on other CPUs)