Passing a list to a CMake macro

I am trying to write a macro which goes through a given list of libraries. However the message call in the macro prints only the first item of the list. What am I doing wrong here?

Code:

    macro( FindLibs LIBRARY_NAMES_LIST )
        message( "inside ${LIBRARY_NAMES_LIST}" )
    endmacro()

    set( LIBRARY_NAMES_LIST lib1 lib2 lib3)
    message( "outside ${LIBRARY_NAMES_LIST}" )
    FindLibs(${LIBRARY_NAMES_LIST})

Output:

message( "outside lib1 lib2 lib3" )
message( "inside lib1" )