EmptyGlobalAssignment: version 6.8.3: line 20: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 7.17.8: line 22: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 7.17.9: line 22: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 7.17.10: line 22: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 8.9.0: line 21: empty global assignment: IUSE=""
  EmptyGlobalAssignment: version 8.10.0: line 21: empty global assignment: IUSE=""