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https://issues.apache.org/jira/browse/ARROW-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kouhei Sutou reassigned ARROW-6312:
-----------------------------------
Assignee: Kouhei Sutou
> [C++] Declare required Libs.private in arrow.pc package config
> --------------------------------------------------------------
>
> Key: ARROW-6312
> URL: https://issues.apache.org/jira/browse/ARROW-6312
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 0.14.1
> Reporter: Michael Maguire
> Assignee: Kouhei Sutou
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The current arrow.pc package config file produced is deficient and doesn't
> properly declare static libraries pre-requisities that must be linked in in
> order to *statically* link in libarrow.a
> Currently it just has:
> ```
> Libs: -L${libdir} -larrow
> ```
> But in cases, e.g. where you enabled snappy, brotli or zlib support in arrow,
> our toolchains need to see an arrow.pc file something more like:
> ```
> Libs: -L${libdir} -larrow
> Libs.private: -lsnappy -lboost_system -lz -llz4 -lbrotlidec -lbrotlienc
> -lbrotlicommon -lzstd
> ```
> If not, we get linkage errors. I'm told the convention is that if the .a has
> an UNDEF, the Requires.private plus the Libs.private should resolve all the
> undefs. See the Libs.private info in [https://linux.die.net/man/1/pkg-config]
>
> Note, however, as Sutou Kouhei pointed out in
> [https://github.com/apache/arrow/pull/5123#issuecomment-522771452,] the
> additional Libs.private need to be dynamically generated based on whether
> functionality like snappy, brotli or zlib is enabled..
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