PC_EXTERNAL
if (!(pcp->pc_flags & PC_EXTERNAL)) {
if (!(pcp->pc_flags & PC_EXTERNAL)) {
pcp->pc_flags |= PC_EXTERNAL;
pcp->pc_flags |= PC_EXTERNAL;
pcp->pc_flags |= PC_EXTERNAL;
pcp->pc_flags |= PC_EXTERNAL;
pcp->pc_flags |= PC_EXTERNAL;
pcp -> pc_flags |= PC_EXTERNAL;