Commits

Wes McKinney authored d0896433408
ARROW-3803: [C++/Python] Merge C++ builds and tests, run Python tests in separate CI entries I found unfortunately that the conda-forge boost-cpp package is not fully compatible with Xcode 8.3, see https://issues.apache.org/jira/browse/ARROW-4056 We might have to build a vendored Boost in this CI entry to work around the problem (this is what the Ray project did when they also hit this issue) Author: Wes McKinney <wesm+git@apache.org> Closes #3208 from wesm/ARROW-3803 and squashes the following commits: 7c47776a9 <Wes McKinney> Remove now unneeded travis_script_gandiva_cpp.sh 9c8d6aa27 <Wes McKinney> * Combine C++ CI jobs, split Python CI jobs into separate build entries * Use gcc 4.8 * Pin boost-cpp 1.68.0 due to crashes caused by 1.69.0