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% Licensed under the Apache License, Version 2.0 (the "License"); you may not
% use this file except in compliance with the License. You may obtain a copy of
% the License at
%
% http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
% License for the specific language governing permissions and limitations under
% the License.
HaveDreyfus = code:lib_dir(dreyfus) /= {error, bad_name}.
if not HaveDreyfus -> CONFIG; true ->
CurrOpts = case lists:keyfind(erl_opts, 1, CONFIG) of
{erl_opts, Opts} -> Opts;
false -> []
end,
NewOpts = [{d, 'HAVE_DREYFUS'} | CurrOpts],
lists:keystore(erl_opts, 1, CONFIG, {erl_opts, NewOpts})
end.
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