Instead of reimplementing it ourself.

Thanks to Guillaume Mercier for the suggestion.

Improves d70f784de98288a6594f70964ee8878da74b2484
Refs #637

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
(cherry picked from commit 2c16044e0c0a4d02d70323a80b6bb19e83383304)