Merge pull request #15292 from alalek:build_warnings_xcode_10_3
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 13 Aug 2019 14:18:47 +0000 (14:18 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 13 Aug 2019 14:18:48 +0000 (14:18 +0000)

Trivial merge