I think I saw some of this in the past [1], but then couldn't reproduce it after all. Now I'm seeing it again. Sporadically Documentation/media/uapi/cec/ gets rebuilt on successive runs of make htmldocs, even when nothing has changed. Output of 'make SPHINXOPTS="-v -v" htmldocs' attached for both cases. Using Sphinx (sphinx-build) 1.4.6 BR, Jani. [1] id:8760rbp8zh.fsf@intel.com -- Jani Nikula, Intel Open Source Technology Center