Tests/RunCMake/try_compile/ObjCxxStandard.cmake - third_party/github.com/Kitware/CMake - Git at Google

 enable_language(OBJCXX)
 try_compile(result ${CMAKE_CURRENT_BINARY_DIR}
   SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src.mm
   OBJCXX_STANDARD 3
   OUTPUT_VARIABLE out
   )
 message("try_compile output:\n${out}")
	enable_language(OBJCXX)
	try_compile(result ${CMAKE_CURRENT_BINARY_DIR}
	SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src.mm
	OBJCXX_STANDARD 3
	OUTPUT_VARIABLE out
	)
	message("try_compile output:\n${out}")