Tests/FortranOnly/checksayhello.cmake - third_party/github.com/Kitware/CMake - Git at Google

 file(READ out.txt IN)
 message("${IN}")
 if(IN MATCHES Hello AND IN MATCHES World)
   message("Passed")
 else()
   message(FATAL_ERROR "Hello world not found")
 endif()
	file(READ out.txt IN)
	message("${IN}")
	if(IN MATCHES Hello AND IN MATCHES World)
	message("Passed")
	else()
	message(FATAL_ERROR "Hello world not found")
	endif()