Try to fix Travis CI Homebrew error
@@ -11,6 +11,7 @@ if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
mkdir cmake && wget --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
export PATH=${DEPS_DIR}/cmake/bin:${PATH}
else
+brew update
brew upgrade cmake || brew install cmake
fi
cmake --version
