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https://issues.apache.org/jira/browse/ARROW-13768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karl Dunkle Werner updated ARROW-13768:
---------------------------------------
Parent: ARROW-12981
Issue Type: Sub-task (was: Task)
> [R] Allow JSON to be an optional component
> ------------------------------------------
>
> Key: ARROW-13768
> URL: https://issues.apache.org/jira/browse/ARROW-13768
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: R
> Affects Versions: 5.0.0
> Reporter: Karl Dunkle Werner
> Priority: Major
>
> JSON support requires RapidJSON, a third-party dependency that might not
> always be available. Particularly for offline static builds (ARROW-12981), it
> would be nice to allow {{ARROW_JSON=OFF}}.
> Here's the [relevant
> section|https://github.com/apache/arrow/blob/64bef2ad8d9cd2fea122cfa079f8ca3fea8cdf5d/cpp/cmake_modules/ThirdpartyToolchain.cmake#L290-L292]
> of {{ThirdpartyToolchain.cmake}}:
> {code:none}
> if(ARROW_JSON)
> set(ARROW_WITH_RAPIDJSON ON)
> endif()
> {code}
> And the [relevant
> section|https://github.com/apache/arrow/blob/64bef2ad8d9cd2fea122cfa079f8ca3fea8cdf5d/r/inst/build_arrow_static.sh#L62]
> of the {{build_arrow_static.sh}} script.
> As Neal
> [mentioned|https://github.com/apache/arrow/pull/11001#discussion_r696723923],
> there's more to do than just replacing {{-DARROW_JSON=ON}} with
> {{-DARROW_JSON=$\{ARROW_JSON:-ON}}}. "We'll have to conditionally build some
> of the bindings like we do with dataset and parquet, and we'll have to
> conditionally skip tests."
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