if (is_before(pgn->cmtime, cgn->mtime))
if (is_strictly_before(pgn->cmtime, cgn->mtime))
Make_TimeStamp(pgn, cgn)    GNode *pgn; /* the current parent */    GNode *cgn; /* the child we've just examined */{    if (is_before(pgn->cmtime, cgn->mtime))	pgn->cmtime = cgn->mtime;}