FC_BI
fcflags = FC_BI | FC_PATH | FC_FUNC;
fcflags &= ~(FC_BI | FC_FUNC);
tp = findcom(ap[0], FC_BI|FC_FUNC);
if (call_builtin(findcom("read", FC_BI), (char **) read_args))
int fcflags = FC_BI|FC_FUNC|FC_PATH;
fcflags = FC_BI|FC_FUNC|FC_PATH;/* undo effects of command */
tp = findcom(cp, FC_BI);
fcflags = FC_BI|FC_PATH;
tp = findcom(ap[0], fcflags & (FC_BI|FC_FUNC));
tbi = (flags & FC_BI) ? ktsearch(&builtins, name, h) : NULL;