Def0 = case erlang:is_builtin(erlang, binary_to_integer, 1) andalso
|
|
erlang:is_builtin(erlang, binary_to_float, 1) of
|
|
true -> [];
|
|
false -> [{d, no_binary_to_whatever}]
|
|
end,
|
|
Def1 = case erlang:is_builtin(erlang, is_map, 1) of
|
|
true -> [{d, maps_support}|Def0];
|
|
false -> Def0
|
|
end,
|
|
Defs = case os:getenv("JSX_FORCE_MAPS") of
|
|
false -> Def1;
|
|
_ -> [{d, maps_always}|Def1]
|
|
end,
|
|
lists:keystore(erl_opts, 1, CONFIG,
|
|
{erl_opts, proplists:get_value(erl_opts, CONFIG, []) ++ Defs}).
|