message: Build on /dev/shm
diff: @@ -44,7 +44,7 @@ then
  prefix_opt="--prefix=${prefix}"
  fi
  - python scripts/uberenv/uberenv.py --spec="${spec}" "${upstream_opt}"
  + python scripts/uberenv/uberenv.py --spec="${spec}" "${upstream_opt}" "${prefix_opt}"
  fi
  