Tests/RunCMake/GeneratorExpressionShortCircuit/BadIF.cmake - third_party/github.com/Kitware/CMake - Git at Google

 set(error $<0>)
 add_custom_target(check ALL COMMAND check
   $<IF:0,1,${error}>
 )
	set(error $<0>)
	add_custom_target(check ALL COMMAND check
	$<IF:0,1,${error}>
	)