Multiple C extensions cause duplicate copies of shared library dependencies

[lpsinger]

If you have a package that contains multiple C extensions that depend on the same shared libraries, then auditwheel repair saves duplicate copies of all of the shared libraries. An example is shown below.

This makes for packages that are several times larger than necessary. Could auditwheel repair sweep up all of the dependencies and put them in a single .libs directory, rather than creating duplicates?

Example

$ tar -tf lalsuite-6.48-cp27-cp27m-manylinux1_x86_64.whl 
lalxml/git_version.py
lalxml/_lalxml.so
lalxml/__init__.py
lalxml/lalxml.py
lalxml/.libs/libgsl-b885fd68.so.0.14.0
lalxml/.libs/libhdf5_hl-04af5206.so.100.0.1
lalxml/.libs/libhdf5-db4e48f9.so.101.0.0
lalxml/.libs/liblalsupport-bd9338fc.so.11.0.0
lalxml/.libs/liblalxml-a864f854.so.2.0.1
lalxml/.libs/libxml2-8ed442f7.so.2.6.26
lalxml/.libs/libz-a147dcb0.so.1.2.3
lalxml/.libs/libfftw3-c8dcb815.so.3.2.4
lalxml/.libs/liblal-8b0d5843.so.14.0.0
lalxml/.libs/libgslcblas-15b2d0fe.so.0.0.0
lalxml/.libs/libfftw3f-044fdcc5.so.3.2.4
lalmetaio/git_version.py
lalmetaio/lalmetaio.py
lalmetaio/_lalmetaio.so
lalmetaio/__init__.py
lalmetaio/.libs/libgsl-b885fd68.so.0.14.0
lalmetaio/.libs/libhdf5_hl-04af5206.so.100.0.1
lalmetaio/.libs/libhdf5-db4e48f9.so.101.0.0
lalmetaio/.libs/liblalsupport-bd9338fc.so.11.0.0
lalmetaio/.libs/liblalmetaio-f4e58690.so.5.0.1
lalmetaio/.libs/libz-a147dcb0.so.1.2.3
lalmetaio/.libs/libfftw3-c8dcb815.so.3.2.4
lalmetaio/.libs/liblal-8b0d5843.so.14.0.0
lalmetaio/.libs/libmetaio-c02fec4d.so.1.1.0
lalmetaio/.libs/libgslcblas-15b2d0fe.so.0.0.0
lalmetaio/.libs/libfftw3f-044fdcc5.so.3.2.4
lal/_lal.so
lal/gpstime.py
lal/lal.py
lal/git_version.py
lal/__init__.py
lal/rate.py
lal/series.py
lal/.libs/libgsl-b885fd68.so.0.14.0
lal/.libs/libhdf5_hl-04af5206.so.100.0.1
lal/.libs/libhdf5-db4e48f9.so.101.0.0
lal/.libs/liblalsupport-bd9338fc.so.11.0.0
lal/.libs/libz-a147dcb0.so.1.2.3
lal/.libs/libfftw3-c8dcb815.so.3.2.4
lal/.libs/liblal-8b0d5843.so.14.0.0
lal/.libs/libgslcblas-15b2d0fe.so.0.0.0
lal/.libs/libfftw3f-044fdcc5.so.3.2.4
lal/utils/cache.py
lal/utils/__init__.py
lal/utils/series.py
lal/spectrum/distributions.py
lal/spectrum/averagespectrum.py
lal/spectrum/__init__.py
lalsuite-6.48.dist-info/WHEEL
lalsuite-6.48.dist-info/METADATA
lalsuite-6.48.dist-info/DESCRIPTION.rst
lalsuite-6.48.dist-info/metadata.json
lalsuite-6.48.dist-info/RECORD
lalsuite-6.48.dist-info/top_level.txt
lalsimulation/git_version.py
lalsimulation/__init__.py
lalsimulation/_lalsimulation.so
lalsimulation/lalsimulation.py
lalsimulation/.libs/libgsl-b885fd68.so.0.14.0
lalsimulation/.libs/libhdf5_hl-04af5206.so.100.0.1
lalsimulation/.libs/liblalsimulation-f35d2299.so.16.0.3
lalsimulation/.libs/libhdf5-db4e48f9.so.101.0.0
lalsimulation/.libs/liblalsupport-bd9338fc.so.11.0.0
lalsimulation/.libs/libz-a147dcb0.so.1.2.3
lalsimulation/.libs/libfftw3-c8dcb815.so.3.2.4
lalsimulation/.libs/liblal-8b0d5843.so.14.0.0
lalsimulation/.libs/libgslcblas-15b2d0fe.so.0.0.0
lalsimulation/.libs/libfftw3f-044fdcc5.so.3.2.4
lalframe/git_version.py
lalframe/frread.py
lalframe/__init__.py
lalframe/lalframe.py
lalframe/_lalframe.so
lalframe/.libs/libgsl-b885fd68.so.0.14.0
lalframe/.libs/libhdf5_hl-04af5206.so.100.0.1
lalframe/.libs/libhdf5-db4e48f9.so.101.0.0
lalframe/.libs/liblalsupport-bd9338fc.so.11.0.0
lalframe/.libs/libFrame-0c783110.so.1.5.0
lalframe/.libs/liblalframe-2600de1c.so.10.0.2
lalframe/.libs/libz-a147dcb0.so.1.2.3
lalframe/.libs/libfftw3-c8dcb815.so.3.2.4
lalframe/.libs/liblal-8b0d5843.so.14.0.0
lalframe/.libs/libgslcblas-15b2d0fe.so.0.0.0
lalframe/.libs/libfftw3f-044fdcc5.so.3.2.4
lalframe/utils/frtools.py
lalframe/utils/__init__.py

[njsmith]

Moved to: pypa/auditwheel#89