bob.core is linking to system libraries

Some libraries are being linked with system libraries.

https://gitlab.idiap.ch/bob/bob.core/-/jobs/219772

{('libboost_iostreams.so.1.73.0', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../../libboost_iostreams.so.1.73.0'),
 ('libzstd.so.1', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../.././libzstd.so.1'),
 ('libz.so.1', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../.././libz.so.1'),
 ('librt.so.1', '/lib64/librt.so.1'), ('libpthread.so.0', '/lib64/libpthread.so.0'),
 ('libbz2.so.1.0', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../.././libbz2.so.1.0'),
 ('libstdc++.so.6', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../../libstdc++.so.6'),
 ('libc.so.6', '/lib64/libc.so.6'),
 ('libm.so.6', '/lib64/libm.so.6'),
 ('linux-vdso.so.1', ''),
 ('libboost_filesystem.so.1.73.0', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../../libboost_filesystem.so.1.73.0'),
 ('libgcc_s.so.1', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../../libgcc_s.so.1'),
 ('liblzma.so.5', '$PREFIX/lib/python3.7/site-packages/bob/core/../../../.././liblzma.so.5')}

This is a big problem. I can't use rankone machine anymore.