[jira] [Created] (ARROW-17295) [C++] Build separate bundled_depenencies.so

["Will Jones (Jira)" <ji...@apache.org>]

Will Jones created ARROW-17295:
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             Summary: [C++] Build separate bundled_depenencies.so
                 Key: ARROW-17295
                 URL: https://issues.apache.org/jira/browse/ARROW-17295
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 8.0.1, 8.0.0
            Reporter: Will Jones


When building arrow _static_ libraries with bundled dependencies, we produce {{{}arrow_bundled_dependencies.a{}}}. But when building dynamic libraries, the bundled dependencies are statically linked directly into the arrow libraries (libarrow, libarrow_flight, etc.). This means that users can access the symbols of bundled dependencies in the static case, but not in the dynamic library case.

One use case of this is being able to pass in gRPC configuration to a Flight server, which requires access to gRPC symbols.

Could we change the dynamic library building to build an {{arrow_bundled_dependencies.so}} so that the symbols are accessible?



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