CMake Debug Log at NotAFeature_OriginDebugGenex.cmake:4 \(set_property\):
  Used compile features for target somelib:

   \* not_a_feature

Call Stack \(most recent call first\):
  CMakeLists.txt:3 \(include\)


CMake Error in CMakeLists.txt:
  Specified unknown feature "not_a_feature" for target "somelib".