bin/44197: atf header and mbuf.h collisions

[pooka%iki.fi@localhost]

>Number:         44197
>Category:       bin
>Synopsis:       atf header and mbuf.h collisions
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Dec 06 14:40:00 +0000 2010
>Originator:     Antti Kantee
>Release:        
>Organization:
>Environment:
>Description:
atf/error.h uses m_type and m_data.  These are both macros defined
by mbuf.h
>How-To-Repeat:
Remove #undefs from src/tests/net/bpf/t_bpf.c and compile
>Fix: