matlab engine seems to unlink a C++ library.

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
52/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
cpp, matlab, python
Domain
backend

Research direction

Start by reproducing the documented import order with matlab.engine and npy_patcher in the stated Ubuntu, Python, and MATLAB environment, then inspect which shared-library loading behavior produces the GLIBCXX_3.4.29 error. Done means both imports work together without the libstdc++ version failure.

Written by the indexing model from the issue text.

Description

I've developed a python package (that's written in C++, compiled using pybind11 and has python bindings) called npy-patcher.

Problem

When I include import matlab.engine into a script, this breaks my module like so:

import matlab.engine
from npy_patcher import PatcherFloat
Error Message
ImportError: /usr/local/MATLAB/R2022b/extern/bin/glnxa64/../../../sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /home/anaconda3/envs/torch/lib/python3.8/site-packages/npy_patcher.cpython-38-x86_64-linux-gnu.so)
Environment
- Linux: Ubuntu 22.04.1 LTS
- python==3.8.12
- matlabengine==9.13.1
- Matlab: R2022b
Dominant language
Python
Stars
97
Forks
13
No merged PRs in 30d

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