Commit 9f02b39ce10b3cca9961dcba3d83113225042f3e
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 (cherry picked from commit 5613bfb8dcd70ea1c89d04b550d9f97958cc48d2)