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https://issues.apache.org/jira/browse/SPARK-9607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654256#comment-14654256
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Sean Owen commented on SPARK-9607:
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I think you're probably right, go ahead with a PR. Simply qualifying the paths
later with {{_DIR}} should work.
> 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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