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https://issues.apache.org/jira/browse/SPARK-9607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654224#comment-14654224
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Sean Owen commented on SPARK-9607:
----------------------------------

Hm, but {{_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"}} at the 
start should set the working dir to {{build/}}? that seems to be the intent. Is 
that the cause or just other fallout from SPARK-9608?

> Incorrect zinc check in build/mvn
> ---------------------------------
>
>                 Key: SPARK-9607
>                 URL: https://issues.apache.org/jira/browse/SPARK-9607
>             Project: Spark
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 1.4.1
>            Reporter: Ryan Williams
>            Priority: Minor
>
> [This 
> check|https://github.com/apache/spark/blob/5a23213c148bfe362514f9c71f5273ebda0a848a/build/mvn#L84-L85]
>  in {{build/mvn}} attempts to determine whether {{zinc}} has been installed, 
> but it fails to add the prefix {{build/}} to the path, so it always thinks 
> that {{zinc}} is not installed, sets {{ZINC_INSTALL_FLAG}} to {{1}}, and 
> attempts to install {{zinc}}.
> This error manifests later because [the {{zinc -shutdown}} and {{zinc 
> -start}} 
> commands|https://github.com/apache/spark/blob/5a23213c148bfe362514f9c71f5273ebda0a848a/build/mvn#L140-L143]
>  are always run, even if zinc was not installed and is running.



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