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https://issues.apache.org/jira/browse/ARROW-2216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16570235#comment-16570235
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Antoine Pitrou commented on ARROW-2216:
---------------------------------------

Yes, those CC and CXX variables seem to be ignored, perhaps because we have a 
"{{compiler: gcc}}" directive too.

As for the CI scripts complexity, it seems it's an inevitable outcome of having 
many different build configurations and subtleties. Do you have an idea how to 
make them more manageable?

> [CI] CI descriptions and envars are misleading
> ----------------------------------------------
>
>                 Key: ARROW-2216
>                 URL: https://issues.apache.org/jira/browse/ARROW-2216
>             Project: Apache Arrow
>          Issue Type: Improvement
>            Reporter: Phillip Cloud
>            Priority: Minor
>
> The descriptions of each of the CI builds are hard to decipher without 
> looking at the build scripts, which are themselves quite complex.
> For example in this job: https://travis-ci.org/apache/arrow/jobs/346309532 
> you can see that the envars {{CC}} and {{CXX}} are set to {{"clang-5.0"}} and 
> {{"clang++-5.0"}} respectively and they are then immediately set to {{gcc}} 
> and {{g++}}.'
> Without intimate knowledge of the script it's very hard to diagnose CI issues.



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