This module provides an interface to the SPQR library, which is part of the suitesparse package.

#include <Eigen/SPQRSupport>

In order to use this module, the SPQR headers must be accessible from the include paths, and your binary must be linked to the SPQR library and its dependencies (Cholmod, AMD, COLAMD,...). For a cmake based project, you can use our FindSPQR.cmake and FindCholmod.Cmake modules