[Midnightbsd-cvs] src: sys.mk: define SHELL and MACHINE_CPUARCH.

[laffer1 at midnightbsd.org]

Log Message:
-----------
define SHELL and MACHINE_CPUARCH. also use -f on cp operations.

Modified Files:
--------------
    src/share/mk:
        sys.mk (r1.6 -> r1.7)
        (http://cvsweb.midnightbsd.org/src/share/mk/sys.mk?r1=1.6&r2=1.7)