portage-ng / portage / app-crypt / codecrypt / 1.8-r3
pmerge --pretend --verbose
[ebuild  N     ] sci-libs/fftw-3.3.10-r1:3.0/3::gentoo USE="openmp threads -doc -fortran -mpi -test (-zbus)" CPU_FLAGS_X86="avx avx2 fma3 sse sse2 -fma4" 4.0 MiB
[ebuild  N     ] dev-libs/crypto++-8.9.0:0/8.9.0::gentoo USE="asm openmp -static-libs -verify-sig" 8.9 MiB
[ebuild  N     ] app-crypt/codecrypt-1.8-r3::gentoo USE="cryptopp" 460.2 KiB

Total: 3 packages (3 new), Size of downloads: 13.3 MiB


 * Running sanity checks...
>>> sci-libs/fftw-3.3.10-r1: failed pkg_pretend
 /Volumes/Disk 1/gentoo-prefix/usr/lib/pkgcore/lib/pkgcore/ebd/.generated/libs/8/pkg_pretend: line 144: [[: invalid regular expression `': empty (sub)expression
  * ERROR: sci-libs/fftw-3.3.10-r1:: failed (pretend phase):
  *   USE flag 'openmp' not in IUSE for sci-libs/fftw-3.3.10-r1
  * 
  * Call stack:
  *    isolated-functions.bash, line  333:  called pkg_pretend
  *                ebuild.bash, line 2167:  called use 'openmp'
  *                pkg_pretend, line  145:  called die
  * 
  * Working directory: '/var/tmp/portage'

>>> dev-libs/crypto++-8.9.0: failed pkg_pretend
 /Volumes/Disk 1/gentoo-prefix/usr/lib/pkgcore/lib/pkgcore/ebd/.generated/libs/8/pkg_pretend: line 144: [[: invalid regular expression `': empty (sub)expression
  * ERROR: dev-libs/crypto++-8.9.0:: failed (pretend phase):
  *   USE flag 'openmp' not in IUSE for dev-libs/crypto++-8.9.0
  * 
  * Call stack:
  *    isolated-functions.bash, line  333:  called pkg_pretend
  *                ebuild.bash, line 1153:  called use 'openmp'
  *                pkg_pretend, line  145:  called die
  * 
  * Working directory: '/var/tmp/portage'

!!! Sanity checks failed, exiting...

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