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https://issues.apache.org/jira/browse/IMPALA-6974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell resolved IMPALA-6974.
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Resolution: Fixed
Fix Version/s: Impala 2.13.0
> Static and shared compilation don't have compatible ccache entries
> ------------------------------------------------------------------
>
> Key: IMPALA-6974
> URL: https://issues.apache.org/jira/browse/IMPALA-6974
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 2.13.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Major
> Fix For: Impala 2.13.0
>
>
> In be/CMakeLists.txt, we add an -fPIC flag unconditionally:
> {code:java}
> # allow linking of static libs into dynamic lib
> add_definitions(-fPIC)
> {code}
> When building in static mode, every command will have an -fPIC flag. However,
> when building in shared mode, CMake adds -fPIC (or -fPIE) automatically, so
> every command will have -fPIC plus another -fPIC added by CMake. These extra
> flags prevent ccache from sharing entries between static and shared builds
> even after preprocessing.
>
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