Cmake: added a comment that the stack check issue seems to be resolved in more recent clang versions (but still not in the one that comes with the command line tools right now)

CMakeLists.txt

@@ -197,6 +197,7 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
 	elseif ((CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 11.0) OR (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 11.0))
 		message(WARNING "Temporarily disabling stack checks for AppleClang 11.0 or higher.")
 		# TODO: In release mode, stack checks currently fail at runtime. Might be a compiler bug as there does not seem to be faulty behavior.
+		# TODO: This seems to be fixed for clang 11.0.3 (bundled with XCode 11.5). Check again, if the clang version coming with the command line tools is greater than 11.0.0.
 		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-stack-check")
 	endif()