cylp and cbc_install distribution

cylp now includes the so files as a separate distribution. cylp.whl itself doesn't contain those so files.

you need to extract the tar.gz to /opt (swap with your tar.gz path). It's possible to extract to other places, just set the LD path correctly.

to extract to /opt
cd /opt
tar -xvzf cbc_install_dist.tar.gz

then:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/cbc_install/dist/lib

NOT WORKING WELL, USE the SINGLE WHEEL (20201207 build 3 instead)

GCC version

it uses manylinux2014's default GCC 4.8.5. -> linking against libgfortran.so.3
for example, you need to have /usr/lib64/libgfortran.so.3