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https://issues.apache.org/jira/browse/ARROW-2346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16411124#comment-16411124
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ASF GitHub Bot commented on ARROW-2346:
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pitrou opened a new pull request #1783: ARROW-2346: [Python] Fix
PYARROW_CXX_FLAGS with multiple options
URL: https://github.com/apache/arrow/pull/1783
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> [Python] PYARROW_CXXFLAGS doesn't accept multiple options
> ---------------------------------------------------------
>
> Key: ARROW-2346
> URL: https://issues.apache.org/jira/browse/ARROW-2346
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.9.0
> Reporter: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
>
> Let's say I want to enable multiple warnings. I try:
> {code:bash}
> PYARROW_CXXFLAGS="-Wextra -Wconversion" python setup.py build
> {code}
> and get the following error:
> {code:bash}
> [ 22%] Building CXX object CMakeFiles/plasma.dir/plasma.cxx.o
> g++-4.9: error: unrecognized command line option '-Wextra -Wconversion'
> {code}
> For some reason it seems command expansion doesn't work properly. "{{-Wextra
> -Wconversion}}" is passed as a single argument instead of two separate ones...
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