libpcap-1.10.0
Support AirPcap devices with a pcap module.
Note why we assume we have libdagconf if we have libdag.
Put the find modules into a Modules subdirectory of the cmake directory.
CMAKE_C_LIBRARY_ARCHITECTURE
Set XXX_INCLUDE_DIRS and XXX_LIBRARIES in find modules.
Use pkg-config to find libnl-3.0 if we can.