Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -34,8 +34,9 @@ have_pcap=no
 AC_SEARCH_LIBS([pcap_create], [pcap], [have_pcap=yes])
 
 if test "x${have_pcap}" = xyes; then
-	AC_CHECK_HEADERS([pcap.h pcap-bpf.h], [], [have_pcap=no])
+	AC_CHECK_HEADERS([pcap.h], [], [have_pcap=no])
 fi
+AC_CHECK_HEADERS([pcap-bpf.h])
 
 if test "x${have_pcap}" = xno; then
 	AC_MSG_ERROR([
