The patch removes a libpcap check to avoid a problem with libpcap. Fix
libpcap instead.
Modernize Makefile:
Use a normal autoconf bool instead of checking for CONFIG_IPV6.
Remove old configure and MAKE_FLAGS hacks. Removing them results in
compilation continuing to work without a problem.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: maurerr <mariusd84@gmail.com>