I have used the following script:

% perl -MConfig -lwe 'exec map $Config{"config_arg$_"},
    0..$Config{config_argc}'
[download]

if you want to add new arguments, try

% perl -MConfig -lwe 'exec +(map $Config{"config_arg$_"}, 
    0..$Config{config_argc}), @ARGV' -- -Dusedevel
[download]

Robin