--- a/PctestIpv4Raw.cc.t	2008-03-13 12:33:16.058194372 -0700
+++ b/PctestIpv4Raw.cc	2008-03-13 12:33:37.708748679 -0700
@@ -101,7 +101,7 @@
 	return rc;
     }
 
-#ifdef linux
+#if defined(linux) && defined(SO_BSDCOMPAT)
     // Linux needs SO_BSDCOMPAT enabled on our UDP socket, to avoid
     // getting ICMP errors when we send packets out.
     int bsdcompatOption;
