pip install -e does not build shared libraries

[Cebtenzzre]

When I try to use `pip install -e .` with llama-cpp-python or
bitsandbytes, it doesn't build the shared libraries like `pip install
.` does.

In the case of llama-cpp-python, there is no _skbuild folder generated
at all, just llama_cpp_python.egg-info. This results in an error when
I try to import it, e.g. "FileNotFoundError: Shared library with base
name 'llama' not found". In this case, `python setup.py develop` also
works.

In the case of bitsandbytes, there is no build folder generated at
all, just bitsandbytes.egg-info. This results in an error when I try
to import it, e.g. "CUDA SETUP: Required library version not found:
libbitsandbytes_cuda121_nocublaslt.so. Maybe you need to compile it
from source?". In this case, `python setup.py develop` does not seem
to work either.

Is this something that can be fixed in the projects' setup.py or
pyproject.toml, or is it an issue with pip or setuptools?

Thanks,
Cebtenzzre