[GitHub] [couchdb] janl opened a new pull request, #4349: feat(build): fail build if xref complains

[GitBox]

janl opened a new pull request, #4349:
URL: https://github.com/apache/couchdb/pull/4349

   only works on Erlang 23. 24 and 25 fail,
   
   24 e.g. with:
   
   ```==> mem3 (xref)
   Warning: hastings_index:await/2 is undefined function (Xref)
   Warning: hastings_index:design_doc_to_indexes/1 is undefined function (Xref)
   Warning: hastings_index_manager:get_index/2 is undefined function (Xref)
   WARN:  Continuing on after abort: [xref]
   ERROR: xref failed while processing 
/Users/jan/Work/asf/tmp/couchdb/src/mem3: {'EXIT',
    {{badmatch,
      [{attribute,{1,1},file,{"src/mem3_reshard_index.erl",1}},
       {attribute,{13,2},module,mem3_reshard_index},
       {attribute,
        {15,2},
        export,
        
[{design_docs,1},{target_indices,2},{spawn_builders,1},{build_index,2}]},
   … big symbol dump
   ```


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