portage-ng / portage / sci-libs / hdf5 / 1.14.6-r2
pmerge --pretend --verbose
[ebuild  N     ] sci-libs/hdf5-1.14.6-r2:0/310-cmake::gentoo USE="hl threads zlib -cxx -debug -fortran -mpi -szip -test -unsupported" 37.5 MiB

Total: 1 package (1 new), Size of downloads: 37.5 MiB


 * Running sanity checks...
>>> sci-libs/hdf5-1.14.6-r2: 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
0.429 s vs. 0.012 s for portage-ng