Tests/RunCMake/RuntimePath/RelativeCheck.cmake - third_party/github.com/Kitware/CMake - Git at Google

 file(RPATH_CHECK FILE "${file}" RPATH "${rpath}")
 if(NOT EXISTS "${file}")
   message(FATAL_ERROR "RPATH for ${file} did not contain the expected value")
 endif()
	file(RPATH_CHECK FILE "${file}" RPATH "${rpath}")
	if(NOT EXISTS "${file}")
	message(FATAL_ERROR "RPATH for ${file} did not contain the expected value")
	endif()