configure: error: conditional "CONFIG_SQLITE3" was never defined. Patch available here -> http://www.spinics.net/lists/linux-nfs/msg30287.html
pretty sure the patch you reference Diego already committed. so by the time you read that e-mail, you should have been able to sync up and get it.
Oops I didn't see Diego was the maintainer, thanks flameeyes - super prompt as usual :)