Merge pull request #11578 from alalek:build_warnings
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 23 May 2018 15:02:32 +0000 (15:02 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 23 May 2018 15:02:32 +0000 (15:02 +0000)

Trivial merge