message: ci: Specify installation path for dependencies to: /usr
diff: @@ -144,7 +144,7 @@ install_glog() {
  git checkout tags/v0.3.5
  mkdir -p build_0_3_5
  pushd build_0_3_5
  - cmake -DWITH_GFLAGS=off ..
  + cmake -DWITH_GFLAGS=off -DCMAKE_INSTALL_PREFIX=/usr ..
  sudo cmake --build . --target install
  popd
  popd
  @@ -163,7 +163,7 @@ install_protobuf() {
  pushd protobuf
  mkdir -p build_3_9_0
  pushd build_3_9_0
  - cmake ../cmake/ -Dprotobuf_BUILD_TESTS=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON
  + cmake ../cmake/ -Dprotobuf_BUILD_TESTS=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=/usr
  sudo cmake --build . --target install
  popd
  popd
  @@ -182,7 +182,7 @@ install_websockets() {
  pushd libwebsockets
  mkdir -p build_3_1_0
  pushd build_3_1_0
  - cmake -DCMAKE_INSTALL_PREFIX=/opt/websockets -DLWS_STATIC_PIC=ON ..
  + cmake -DCMAKE_INSTALL_PREFIX=/opt/websockets -DLWS_STATIC_PIC=ON -DCMAKE_INSTALL_PREFIX=/usr ..
  sudo cmake --build . --target install
  popd
  popd
  