anyIncomplete = true
		}
	}
	if anyIncomplete {
		all := PackageList(pkgs)
		for _, p := range all {
			if p.Error != nil {
				base.Errorf("%v", p.Error)
			}
		}
	}
	base.ExitIfErrors()

	// Check for duplicate loads of the same package.
	// That should be impossible, but if it does happen then
	// we end up trying to build the same package twice,