Gentoo's Bugzilla – Bug 628348sci-chemistry/mpqc-2.3.1-r4 : ../.../transform_tbint.h:64:39: error: constexpr needed for in-class initialization of static data member const double sc::TwoBodyMOIntsTransform::zero_integral of non-integral type [-fpermissive]Last modified: 2018-02-26 17:17:23 UTC node [vulture]