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https://issues.apache.org/jira/browse/ARROW-11938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17299872#comment-17299872
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Ian Cook commented on ARROW-11938:
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See the {{find_local_source}} function in {{r/inst/linuxlibs.R}} which handles
this situation on non-Windows systems, but note that that attempts to build the
C++ library, not just find it if it’s already built, and we probably do not
want to attempt to script C++ library build on users’ Windows environments.
> [R] Enable R build process to find locally built C++ library on Windows
> -----------------------------------------------------------------------
>
> Key: ARROW-11938
> URL: https://issues.apache.org/jira/browse/ARROW-11938
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Ian Cook
> Priority: Major
>
> Currently, {{configure.win}} and {{tools/winlibs.R}} have two ways of finding
> the Arrow C++ library:
> # If {{RWINLIB_LOCAL}} is set, it gets it from that zip file
> # If not, it downloads it
> Enable and document a third option for the case when the C++ library has been
> built locally. This will enable R package developers using Windows machines
> to make changes to code in the C++ library, build and install it, and then
> build the R package using it.
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