portage-ng / portage / sys-apps / duc / 1.4.5
pmerge --pretend --verbose
[ebuild  N     ] dev-db/tokyocabinet-1.4.48-r3::gentoo USE="bzip2 threads zlib -debug -doc -examples" 977.0 KiB
[ebuild  N     ] sys-apps/duc-1.4.5::gentoo USE="X cairo ncurses sqlite tokyocabinet -gui -leveldb" 281.6 KiB

Total: 2 packages (2 new), Size of downloads: 1.2 MiB


 * Running sanity checks...
>>> sys-apps/duc-1.4.5: failed REQUIRED_USE
  Failed to match: exactly-one-of ( tokyocabinet leveldb sqlite )
  from: exactly-one-of ( tokyocabinet leveldb sqlite ) cairo gui
  for USE: X abi_x86_64 amd64 cairo elibc_glibc kernel_linux llvm_targets_X86 ncurses split-usr sqlite test-rust tokyocabinet
  Failed to match: gui
  from: exactly-one-of ( tokyocabinet leveldb sqlite ) cairo gui
  for USE: X abi_x86_64 amd64 cairo elibc_glibc kernel_linux llvm_targets_X86 ncurses split-usr sqlite test-rust tokyocabinet

!!! Sanity checks failed, exiting...

Wall time
0.442 s vs. 0.027 s for portage-ng