Updating usFunctionEmbedResources.cmake to use CMAKE_CXX_FLAGS rather than building the flags itself.  This should allow changes to compilation flags in other cmake files to affect the compiled empty resource file for Darwin-based platforms.
Updating usFunctionEmbedResources.cmake to use CMAKE_CXX_FLAGS rather than building the flags itself.  This should allow changes to compilation flags in other cmake files to affect the compiled empty resource file for Darwin-based platforms.

CppMicroServices/CppMicroServices,saschazelzer/CppMicroServices,CppMicroServices/CppMicroServices,saschazelzer/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices,CppMicroServices/CppMicroServices