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[jira] [Created] (ARROW-2730) [C++] Set up CMAKE_C_FLAGS more thoughtfully instead of using CMAKE_CXX_FLAGS


Wes McKinney created ARROW-2730:
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             Summary: [C++] Set up CMAKE_C_FLAGS more thoughtfully instead of using CMAKE_CXX_FLAGS
                 Key: ARROW-2730
                 URL: https://issues.apache.org/jira/browse/ARROW-2730
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney


See discussion on GitHub for ARROW-2676. We are setting CMAKE_C_FLAGS to the value of CMAKE_CXX_FLAGS, which is rather heavy-handed. Most of the stuff we are putting in the CXX_FLAGS is C++-specific related to warning suppressions, etc. The number of C-specific flags we need should be much smaller, probably just the optimization level, position-independent code setting, -fno-strict-aliasing, and some other standard stuff



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