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https://issues.apache.org/jira/browse/ARROW-1661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16462745#comment-16462745
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Antoine Pitrou commented on ARROW-1661:
---------------------------------------
I ran into linking issues while trying to compile Arrow against a self-compiled
Python 3.7:
{code}
[3/3] Linking CXX executable debug/python-test
FAILED: : && /usr/bin/ccache /usr/bin/c++ -ggdb -O0 -Wall -std=c++11 -msse3
-g src/arrow/python/CMakeFiles/python-test.dir/python-test.cc.o -o
debug/python-test -rdynamic debug/libarrow_python_test_main.a
debug/libarrow_python.so.10.0.0 debug/libarrow.so.10.0.0
/home/antoine/cpython/37/usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.a
googletest_ep-prefix/src/googletest_ep/lib/libgtest.a -lpthread -ldl
zstd_ep-prefix/src/zstd_ep/lib/libzstd.a zlib_ep/src/zlib_ep-install/lib/libz.a
snappy_ep/src/snappy_ep-install/lib/libsnappy.a
lz4_ep-prefix/src/lz4_ep/lib/liblz4.a
brotli_ep/src/brotli_ep-install/lib/x86_64-linux-gnu/libbrotlidec.a
brotli_ep/src/brotli_ep-install/lib/x86_64-linux-gnu/libbrotlienc.a
brotli_ep/src/brotli_ep-install/lib/x86_64-linux-gnu/libbrotlicommon.a
-lpthread
-Wl,-rpath,/home/antoine/t/ttarrow/cpp/build/debug:/home/antoine/miniconda3/envs/pyarrow/lib
-Wl,-rpath-link,/home/antoine/miniconda3/envs/pyarrow/lib && :
/home/antoine/cpython/37/usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.a(posixmodule.o):
In function `os_openpty_impl':
/home/antoine/cpython/37/./Modules/posixmodule.c:6140: undefined reference to
`openpty'
/home/antoine/cpython/37/usr/lib/python3.7/config-3.7m-x86_64-linux-gnu/libpython3.7m.a(posixmodule.o):
In function `os_forkpty_impl':
/home/antoine/cpython/37/./Modules/posixmodule.c:6234: undefined reference to
`forkpty'
{code}
The problem here is that Python needs to link against {{libutil}} on Linux.
This can be queried using the {{sysconfig}} module:
{code}
>>> sysconfig.get_config_var('LIBS')
'-lpthread -ldl -lutil'
>>> sysconfig.get_config_var('SHLIBS')
'-lpthread -ldl -lutil'
{code}
However we need to turn those command-line arguments into library arguments for
CMake. Just passing the linker flags to the {{ADD_ARROW_LIB}} call doesn't seem
to work.
> [Python] Compile and test with Python 3.7
> -----------------------------------------
>
> Key: ARROW-1661
> URL: https://issues.apache.org/jira/browse/ARROW-1661
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> See discussion in https://github.com/apache/arrow/issues/1125
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