--- pcap-linux.c	2004-10-19 03:06:12.000000000 -0400
+++ ../libpcap-0.9.1-rt/pcap-linux.c	2005-07-19 12:32:34.000000000 -0400
@@ -1128,6 +1128,13 @@
 		handle->linktype = DLT_PRISM_HEADER;
 		break;
 
+#ifndef ARPHRD_IEEE80211_RADIOTAP /* new */
+#define ARPHRD_IEEE80211_RADIOTAP 803
+#endif
+	case ARPHRD_IEEE80211_RADIOTAP:
+		handle->linktype = DLT_IEEE802_11_RADIO;
+		break;
+
 	case ARPHRD_PPP:
 		/*
 		 * Some PPP code in the kernel supplies no link-layer