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[jira] [Created] (ARROW-3985) [C++] Pass -C option when compiling with ccache to avoid some warnings


Wes McKinney created ARROW-3985:
-----------------------------------

             Summary: [C++] Pass -C option when compiling with ccache to avoid some warnings
                 Key: ARROW-3985
                 URL: https://issues.apache.org/jira/browse/ARROW-3985
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney
             Fix For: 0.13.0


ccache by default will eat comments, some of which are used by gcc to disable certain warnings, like case statements that fall through.

see https://github.com/apache/arrow/issues/3004



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