England's Tyrrell Hatton led the Abu Dhabi Championship by five shots on Friday before fading light forced play to come to a premature halt with the second round due to be completed on Saturday.
Sharing provisional second with the Frenchman was overnight leader Rory McIlroy, who was one over for the day with four holes still to be completed and two who managed to make it to the clubhouse, Australian Jason Scrivener and Thailand's Jazz Janewattananond.
The 29-year-old followed up the two eagles he had made on day one with another from 22 feet on the second hole.
"I'm obviously in a great position at the moment," he said.
Langasque was almost celebrating the first hole in one of the new Race to Dubai season, his tee shot at the par three 15th whistling past the hole.
139 - Joost Luiten (NED) 69 70, Callum Shinkwin 70 69, Matthew Southgate 74 65
142 - Christiaan Bezuidenhout (RSA) 71 71, Justin Rose 70 72, Justin Harding (RSA) 73 69, Kurt Kitayama (USA) 68 74, Lucas Bjerregaard (DEN) 68 74, Alexander Bjoerk (SWE) 70 72, Grant Forrest 72 70, Victor Dubuisson (FRA) 73 69 143 Marcus Armitage 73 70, Danny Willett 71 72, Nicolas Colsaerts (BEL) 72 71, Antoine Rozner (FRA) 71 72, Rasmus Hoejgaard (DEN) 71 72, Richard Sterne (RSA) 71 72, Robert Rock 72 71, Calum Hill 72 71