message: only grab launcher if not present
diff: @@ -5,8 +5,10 @@ ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." >/dev/null 2>&1 && pwd)"
  LAUNCHER_DIR="$ROOT_DIR/../"
  # NCTL compile requires casper-node-launcher
  +if [ ! -d "$LAUNCHER_DIR" ]; then
  pushd $LAUNCHER_DIR
  git clone https://github.com/CasperLabs/casper-node-launcher.git
  +fi
  # Activate Environment
  pushd "$ROOT_DIR"
  