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https://issues.apache.org/jira/browse/ARROW-5956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16886285#comment-16886285
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Uwe L. Korn commented on ARROW-5956:
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{quote}[https://twitter.com/xhochy/status/1140297912720744449] describes a
similar wish.
{quote}
In that case I actually had R use the same lib as pyarrow. This is working fine
in a conda-provided environment. I amended the title that this here is about
using the libraries from the {{pyarrow}} *wheel*.
> [R] Ability for R to link to C++ libraries from pyarrow Wheel
> -------------------------------------------------------------
>
> Key: ARROW-5956
> URL: https://issues.apache.org/jira/browse/ARROW-5956
> Project: Apache Arrow
> Issue Type: New Feature
> Components: R
> Environment: Ubuntu 16.04, R 3.4.4, python 3.6.5
> Reporter: Jeffrey Wong
> Priority: Major
>
> I have installed pyarrow 0.14.0 and want to be able to also use R arrow. In
> my work I use rpy2 a lot to exchange python data structures with R data
> structures, so would like R arrow to link against the exact same .so files
> found in pyarrow
>
>
> When I pass in include_dir and lib_dir to R's configure, pointing to
> pyarrow's include and pyarrow's root directories, I am able to compile R's
> arrow.so file. However, I am unable to load it in an R session, getting the
> error:
>
> {code:java}
> > dyn.load('arrow.so')
> Error in dyn.load("arrow.so") :
> unable to load shared object '/tmp/arrow2/r/src/arrow.so':
> /tmp/arrow2/r/src/arrow.so: undefined symbol:
> _ZNK5arrow11StructArray14GetFieldByNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE{code}
>
>
> Steps to reproduce:
>
> Install pyarrow, which also ships libarrow.so and libparquet.so
>
> {code:java}
> pip3 install pyarrow --upgrade --user
> PY_ARROW_PATH=$(python3 -c "import pyarrow, os;
> print(os.path.dirname(pyarrow.__file__))")
> PY_ARROW_VERSION=$(python3 -c "import pyarrow; print(pyarrow.__version__)")
> ln -s $PY_ARROW_PATH/libarrow.so.14 $PY_ARROW_PATH/libarrow.so
> ln -s $PY_ARROW_PATH/libparquet.so.14 $PY_ARROW_PATH/libparquet.so
> {code}
>
>
> Add to LD_LIBRARY_PATH
>
> {code:java}
> sudo tee -a /usr/lib/R/etc/ldpaths <<LINES
> LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}:$PY_ARROW_PATH"
> export LD_LIBRARY_PATH
> LINES
> sudo tee -a /usr/lib/rstudio-server/bin/r-ldpath <<LINES
> LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}:$PY_ARROW_PATH"
> export LD_LIBRARY_PATH
> LINES
> export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:$PY_ARROW_PATH"
> {code}
>
>
> Install r arrow from source
> {code:java}
> git clone https://github.com/apache/arrow.git /tmp/arrow2
> cd /tmp/arrow2/r
> git checkout tags/apache-arrow-0.14.0
> R CMD INSTALL ./ --configure-vars="INCLUDE_DIR=$PY_ARROW_PATH/include
> LIB_DIR=$PY_ARROW_PATH"{code}
>
> I have noticed that the R package for arrow no longer has an RcppExports, but
> instead an arrowExports. Could it be that the lack of RcppExports has made it
> difficult to find GetFieldByName?
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