[Midnightbsd-cvs] src: Makefile: setup libc arch rather than machine arch

[laffer1 at midnightbsd.org]

Log Message:
-----------
setup libc arch rather than machine arch

Modified Files:
--------------
    src/lib/libc:
        Makefile (r1.7 -> r1.8)
        (http://cvsweb.midnightbsd.org/src/lib/libc/Makefile?r1=1.7&r2=1.8)