module FFI::Library

def generic_enum(klass, *args)
  native_type = args.first.kind_of?(FFI::Type) ? args.shift : nil
  name, values = if args[0].kind_of?(Symbol) && args[1].kind_of?(Array)
    [ args[0], args[1] ]
  elsif args[0].kind_of?(Array)
    [ nil, args[0] ]
  else
    [ nil, args ]
  end
  @ffi_enums = FFI::Enums.new unless defined?(@ffi_enums)
  @ffi_enums << (e = native_type ? klass.new(native_type, values, name) : klass.new(values, name))
  # If called with a name, add a typedef alias
  typedef(e, name) if name
  e
end