!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =sci-libs/fetk-1.5 ), mode none
!!! trying sci-libs/fetk-1.5
!!!   request ~sci-libs/mc-1.5, mode rdepend
!!!   trying sci-libs/mc-1.5-r1
!!!     request <sci-libs/superlu-5, mode depend
!!!     trying sci-libs/superlu-4.3-r4
!!!       failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='sci-libs/superlu-7.0.1' @0x102793a10> wrapped='use' @0x102af0450>]
!!!     removing choices involving <sci-libs/superlu-5
!!!   removing choices involving ~sci-libs/mc-1.5

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =sci-libs/fetk-1.5 )'
potentials:
repo gentoo: [ ebuild src: sci-libs/fetk-1.5 ]