Commit 5613bfb8dcd70ea1c89d04b550d9f97958cc48d2

Azat Khuzhin 2019-01-28T22:19:20

Merge branch 'travis-ci-osx-fixes' * travis-ci-osx-fixes: travis-ci/osx: switch to xcode 10.1, since 9.4 is not compatible with gcc-8 travis-ci/osx: install gcc and fix CC