adds relative path from binary to artifacts when exec_prefix != prefix
adds relative path from binary to artifacts when exec_prefix != prefix

mbudiu-vmw/p4c-clone,mbudiu-vmw/p4c-clone,hanw/p4c,hanw/p4c,p4lang/p4c,p4lang/p4c,hanw/p4c,mbudiu-vmw/p4c-clone,p4lang/p4c,hanw/p4c,mbudiu-vmw/p4c-clone,p4lang/p4c,p4lang/p4c