@jorisvandenbossche @datapythonista currently _sphinx_build in doc/make.py always calls clean. Do you know why that was added?

My doc-build process in https://github.com/pandas-dev/pandas-release assumes that I can do make.py html and make.py latex_forced.

An option to not clean would be fine by me.