Installation error with conda on Ubuntu: libpthread.so not found

[jhnnsnk]

I installed NESTML as follows with miniforge:

conda create --name nestml
conda activate nestml
conda install -c conda-forge nest-simulator ipython cxx-compiler boost boost-cpp libboost cmake make jupyter matplotlib
pip install git+https://github.com/nest/ode-toolbox
pip install nestml

Running NESTCodeGeneratorUtils.generate_code_for("izhikevich_solution.nestml") from the Izhikevich tutorial fails with:

/home/senk//miniforge3/envs/nestml/bin/../lib/gcc/x86_64-conda-linux-gnu/14.3.0/../../../../x86_64-conda-linux-gnu/bin/ld: cannot find /home/senk/miniforge3/envs/nestml/x86_64-conda-linux-gnu/sysroot/usr/lib/libpthread.so: No such file or directory

[pnbabu]

It looks like during the compilation of generated code, NEST is looking for libpthread.so in .../sysroot/usr/lib/libpthread.so, but the library is actually present in .../sysroot/lib64/libpthread.so.

The nest-config file, which NESTML uses, contains the former path and hence the error. The error is not present when NEST is installed from source in a conda environment. @steffengraber does this require changes in the way the NEST conda package is built?

[steffengraber]

@pnbabu Thanks for reporting. I'll take a look.
https://github.com/conda-forge/nestml-feedstock