Define erlang macro at compile time in mix.exs

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Hi,

I’m trying to build an existing Erlang project using mix.
I use an Erlang macro as a constant in multiple places in the project.
It is defined in my rebar.config as
{erl_opts, [ {d, 'DEFAULT_TIMEOUT', 30000} ]}.

Is it possible to do the same thing with mix?

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def project do [erlc_options: [{:d, :DEFAULT_CALL_TIMEOUT, 30000}]] end
works

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