- unshift @INC, "modules/YAML"; # Use our own version of YAML.
- push @INC, "modules"; # Only use our own versions of modules if there's no system version.
+ unshift @INC, "modules/override"; # Use our own versions of various modules (e.g. YAML).
+ push @INC, "modules/fallback"; # Only use our own versions of modules if there's no system version.