clean before run

because of builds of different systems in the filesystem

Change-Id: I4d70a4949edb5dce8c41987fb2113d134529b201
experiments with shared objects in os x

Change-Id: I1c747979cc4337e1882e1c75c10c6d0a736ca663
added linux file

Change-Id: I6c7feae31aab4e2dd8fb7781c46d62c719004f69