build fix
build fix

--HG--
extra : convert_revision : 920de93f8034546c73f30e18446fae11c416a1bc

davetcoleman/ompl,sonny-tarbouriech/ompl,jvgomez/ompl,florianhauer/ompl,davetcoleman/ompl,utiasASRL/batch-informed-trees,utiasASRL/batch-informed-trees,sonny-tarbouriech/ompl,florianhauer/ompl,sonny-tarbouriech/ompl,sonny-tarbouriech/ompl,davetcoleman/ompl,utiasASRL/batch-informed-trees,jvgomez/ompl,florianhauer/ompl,utiasASRL/batch-informed-trees,utiasASRL/batch-informed-trees,davetcoleman/ompl,sonny-tarbouriech/ompl,davetcoleman/ompl,sonny-tarbouriech/ompl,jvgomez/ompl,florianhauer/ompl,utiasASRL/batch-informed-trees,jvgomez/ompl,jvgomez/ompl,florianhauer/ompl,jvgomez/ompl,davetcoleman/ompl,florianhauer/ompl