best way to compile with libc++

[Corentin Valleroy]

what is the recommended way to use libc++ if compiling the project with Clang?
this way feel a bit strange...

if(CMAKE_CXX_COMPILER_ID MATCHES ".*Clang")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -v -pthread -fstandalone-debug")
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++abi")
endif()