| CMake Error at .*/Modules/FeatureSummary\.cmake:[0-9]+. \(message\): | |
| The WHAT argument of FEATURE_SUMMARY\(\) contains FOO, which is not a valid | |
| value\. | |
| Call Stack \(most recent call first\): | |
| FeatureSummaryWhatSingleUnknown\.cmake:[0-9]+ \(feature_summary\) | |
| CMakeLists.txt:[0-9]+ \(include\) |