geduer@gdk8:/media/geduer/gedu/kernel$ make clean /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found /bin/sh: 1: bc: not found