| ^CMake Error at .*/Modules/CheckIPOSupported\.cmake:[0-9]+ \(message\): | |
| IPO is not supported \(language\(s\) 'UnknownLanguage' not supported\)\. | |
| Call Stack \(most recent call first\): | |
| .*/Modules/CheckIPOSupported\.cmake:[0-9]+ \(_ipo_not_supported\) | |
| user-lang-unknown\.cmake:[0-9]+ \(check_ipo_supported\) | |
| CMakeLists\.txt:[0-9]+ \(include\)$ |