At this moment it is possible to install media-libs/opencv[mkl,-lapack], which is completely wrong because: lapack? ( atlas? ( sci-libs/atlas ) mkl? ( sci-libs/mkl ) !atlas? ( !mkl? ( virtual/cblas >=virtual/lapack-3.10 virtual/lapacke ) ) ) So mkl dep weirdly is not installed if lapack is not enabled :) Reproducible: Always Expected Results: There must be REQUIRED_USE
Created attachment 915295 [details] Complete build log
Created attachment 915297 [details] emerge --info