Fix makefile config installation
Fix makefile config installation

(cherry picked from commit f700b8b5ee8ceca41a195ff9a64c39ee42d9733b)

uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend