some small fixes to the Makefile. it's still fugly though
some small fixes to the Makefile. it's still fugly though

luisenp/mdp-lib,sandysa/mdp-lib,luisenp/mdp-lib,sandysa/mdp-lib,luisenp/mdp-lib,sandysa/mdp-lib,luisenp/mdp-lib,luisenp/mdp-lib,sandysa/mdp-lib,sandysa/mdp-lib