The PGA Championship gets underway at the Ocean Course, stretched to 7,800-plus yards as a defense against a new generation of power-hitters. But even the longest course in major championship history could prove a pushover if the confounding winds off the Atlantic coast don’t materialize. So far, the gusts haven’t disappointed, forcing players to play to use an 8-iron for an approach shot one day, then a 3-iron the next when it changes directions. “If the wind blows this way for the rest of the week,it’s going to be a battle to just get in the clubhouse,” Adam Scott joked.