- - if [[ "${TRAVIS_BRANCH}" == "coverity_scan" && "${TRAVIS_JOB_NUMBER}" =~ \.1$ ]]; then exit 0; fi
- - sudo apt-get update -qq
- - sudo apt-get install -qq --no-install-recommends
+ - if [[ "${TRAVIS_BRANCH}" == "coverity_scan" && ! "${TRAVIS_JOB_NUMBER}" =~ \.1$ ]]; then exit 0; fi
+ - if [[ "$TRAVIS_OS_NAME" = "linux" ]]; then
+ sudo apt-get update -qq &&
+ sudo apt-get install -qq --no-install-recommends