I updated Sphinx to version 1.6.1 and docutils to version 0.13.1. I'm building .tex documents in several languages, including Turkish. The Turkish build outputs first

[exec] WARNING: C:\foo\bar.rst:: (WARNING/2) language "tr" not supported: Docutils-generated text will be in English.

and then thousands of lines similar to

[exec] C:\foo\foobar.rst:28: WARNING: No smart quotes defined for language "tr".

I see there are some changes in latest Sphinx versions related to handling of smart quotes. I also see that docutils languages directory does not include Turkish language (tr.py). Is the problem simply that docutils does not support Turkish translation? In the end, my end results (PDF files) look fine and, on first glance, references etc. seem to work fine.

I did not get these warnings with Sphinx version 1.5.x. What can I do to get rid of the warnings?