portage-ng / portage / games-roguelike / nethack / 5.0.0-r1
pmerge --pretend --verbose
[ebuild  N     ] acct-group/gamestat-0-r3::gentoo
[ebuild  N     ] x11-apps/bdftopcf-1.1.2::gentoo 142.8 KiB
[ebuild  N     ] games-roguelike/nethack-5.0.0-r1::gentoo USE="X -qt6" LUA_SINGLE_TARGET="-lua5-4" 10.3 MiB

Total: 3 packages (3 new), Size of downloads: 10.4 MiB


 * Running sanity checks...
>>> games-roguelike/nethack-5.0.0-r1: failed REQUIRED_USE
  Failed to match: lua_single_target_lua5-4
  from: lua_single_target_lua5-4
  for USE: X abi_x86_64 amd64 elibc_glibc kernel_linux llvm_targets_X86 split-usr test-rust

!!! Sanity checks failed, exiting...

Wall time
0.692 s vs. 0.019 s for portage-ng