#4 Fix weird lib issues on Ubuntu

Reported on http://carnal0wnage.blogspot.com/2011/01/installing-unicornscan-on-current.html

Fix up weird lib issues see at the bottom for where i got this:

blah@blah:$ sudo ln -s /usr/include/dumbnet.h /usr/include/dnet.h

blah@blah:$ for i in `find ./ -type f -exec grep -l 'ldnet' '{}' \;`; do sed -i bak -e 's/ldnet/ldumbnet/g' $i; done

apply this patch

https://www.pentoo.ch/pentoo/browser/portage/trunk/net-analyzer/unicornscan/files/unicornscan-0.4.7-configure.patch