Build, rather than download, dependencies

[rgov]

The python/llm/setup.py file downloads binaries from SourceForge:

https://github.com/intel-analytics/ipex-llm/blob/69f13c78b8d078b9e0beadcda5e3583a8db65fed/python/llm/setup.py#L153-L154

It is not clear how these dependencies are built, and it would be good for users to be able to recompile them, e.g., for different platforms, for debugging, to apply custom build options or patches, for security review, etc.

[Oscilloscope98]

Hi @rgov,

Currently, building these dependencies through setup.py is not supported.

[rgov]

Do you support users building dependencies in any other way? It's unclear whether there are Intel-specific patches to these projects. If there are patches, are they open source?