[jira] [Resolved] (ARROW-913) [Python] Only link jemalloc to the Cython extension where it's needed

["Uwe L. Korn (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe L. Korn resolved ARROW-913.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 0.4.0

We changed the build behaviour recently to statically link {{libjemalloc.so}} if it was build using the ExternalProject mechanism. This was the initial cause of the problem here. Otherwise {{--as-needed}} should take care of the linking where it's needed. If the problem resurfaces again, feel free to re-open this issue with additional information.

> [Python] Only link jemalloc to the Cython extension where it's needed
> ---------------------------------------------------------------------
>
>                 Key: ARROW-913
>                 URL: https://issues.apache.org/jira/browse/ARROW-913
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Assignee: Uwe L. Korn
>             Fix For: 0.4.0
>
>
> see https://github.com/apache/arrow/blob/master/python/CMakeLists.txt#L319
> If the user does not have jemalloc installed, it would be better to defer the library load failure until they try to use the jemalloc-based memory allocator. See e.g.
> https://issues.apache.org/jira/browse/ARROW-909



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