pmerge --pretend --verbose
[ebuild N ] sci-libs/hdf5-2.2.0:0/320-cmake::gentoo USE="hl threads zlib -cxx -debug -fortran -mpi -szip -test -unsupported" 40.2 MiB
[ebuild N ] sci-misc/h5utils-1.13.2::gentoo USE="-hdf -octave" 111.5 KiB
Total: 2 packages (2 new), Size of downloads: 40.3 MiB
* Running sanity checks...
>>> sci-libs/hdf5-2.2.0: failed REQUIRED_USE
Failed to match: !hl
from: at-most-one-of ( cxx mpi ) !cxx !mpi !fortran !hl
for USE: abi_x86_64 amd64 elibc_glibc hl kernel_linux llvm_targets_X86 split-usr test-rust threads zlib
!!! Sanity checks failed, exiting...
- Wall time
- 0.438 s vs. 0.027 s for portage-ng