updated Makefile to be aligned with Cmake
updated Makefile to be aligned with Cmake

ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids,ebertolazzi/Clothoids