^CMake Error at CallEnableLanguage-toolchain\.cmake:[0-9]+ \(enable_language\):
  Language 'NONE' is currently being enabled\.  Recursive call not allowed\.
Call Stack \(most recent call first\):
  .*/Modules/CMakeDetermineSystem\.cmake:[0-9]+ \(include\)
  CMakeLists\.txt:[0-9]+ \(project\)$
