libwireshark (and the plugins using those functions) do not depend on
wiretap on Windows.
While doing that, rename the eth_* functions to ws_*.
svn path=/trunk/; revision=25354
Attached to this post you find a patch for integration into wireshark that adds
a dissector for SERCOS III, ethertype 0x88cd.
svn path=/trunk/; revision=25270