[ebuild     U  ] dev-cpp/eigen-3.4.1-r1:3/3.4::gentoo [3.4.0-r3:3::gentoo] USE="openmp -adolc (-blas%) -boost -cholmod -cuda -cuda-clang% -debug (-doc) -fftw -hip -klu (-lapack) -mathjax (-metis%) (-opengl*) (-pastix) -pocketfft% -sparsehash -spqr -superlu (-test) -umfpack (-clang%)" CPU_FLAGS_X86="avx avx2 avx512dq avx512f f16c fma3 popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" LLVM_SLOT="22%* -21% -23%" 2.1 MiB

Total: 1 package (1 upgrade), Size of downloads: 2.1 MiB


 * Running sanity checks...
>>> dev-cpp/eigen-3.4.1-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: dev-cpp/eigen-3.4.1-r1:: failed (pretend phase):
  *   USE flag 'openmp' not in IUSE for dev-cpp/eigen-3.4.1-r1
  * 
  * Call stack:
  *    isolated-functions.bash, line  333:  called pkg_pretend
  *                ebuild.bash, line 3557:  called use 'openmp'
  *                pkg_pretend, line  145:  called die
  * 
  * Working directory: '/var/tmp/portage'

!!! Sanity checks failed, exiting...