EmptyGlobalAssignment: version 2.4.0-r1: line 14: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 2.5.0-r1: line 14: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 2.6.0-r1: line 14: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 2.7.0: line 14: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 2.7.1: line 14: empty global assignment: IUSE=""