CMake Error at .*Modules/WriteCompilerDetectionHeader\.cmake:[0-9]+ \(message\):
  Unsupported feature not_a_feature\.
Call Stack \(most recent call first\):
  .*Modules/WriteCompilerDetectionHeader\.cmake:[0-9]+ \(_check_feature_lists\)
  InvalidFeature\.cmake:4 \(write_compiler_detection_header\)
  CMakeLists\.txt:3 \(include\)