cannot find /lib64/libpthread.so.0

[mojingtong]

When I try to compile MinkowskiEngine by Anaconda, I use the command:
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas

But it occurs the following problems:
/media/LOCAL/home/cn1978/miniforge3/envs/SLidR/compiler_compat/ld: cannot find /lib64/libpthread.so.0 /media/LOCAL/home/cn1978/miniforge3/envs/SLidR/compiler_compat/ld: cannot find /usr/lib64/libpthread_nonshared.a collect2: error: ld returned 1 exit status error: command '/media/LOCAL/home/cn1978/miniforge3/envs/SLidR/bin/g++' failed with exit code 1

My environment is: torch=1.9.0, cuda=11.1, python=3.8, gcc=9.4.0

Thanks a lot!

[lgleznah]

Hi there!

In my case, my environment is using pytorch==1.12.1, cuda==11.3, python==3.8.5 and gcc==9.5.0 inside an Ubuntu 22.04 WSL running in Windows 11, and I've faced the same issue.

I could get the compilation to succeed by following these steps. Basically, it would seem that the libraries are being looked for in the wrong place, and doing some symbolic links solves the issue. Assuming your libraries are also under /usr/lib/x86_64-linux-gnu, you have to create the following links:

sudo ln -s /usr/lib/x86_64-linux-gnu/libpthread.so.0 /lib64/libpthread.so.0
sudo ln -s /usr/lib/x86_64-linux-gnu/libc_nonshared.a /usr/lib64/libpthread_nonshared.a
sudo ln -s /usr/lib/x86_64-linux-gnu/libc_nonshared.a /usr/lib64/libc_nonshared.a
sudo ln -s /usr/lib/x86_64-linux-gnu/libc.so /lib64/libc.so.6

Note that I have not tried running this yet, so I still have to verify whether this works.

Hope it helps 🙏