$NetBSD: patch-ac,v 1.2 2006/03/28 17:44:08 joerg Exp $

--- FoundationExtensions.subproj/NSFileHandle+Extensions.m.orig	2002-08-17 04:12:48.000000000 +1000
+++ FoundationExtensions.subproj/NSFileHandle+Extensions.m
@@ -144,7 +144,7 @@
                     format: @"PeekNamedPipe() NT Error # %d", GetLastError()];
 
     return lpTotalBytesAvail;
-#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(linux)
+#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(linux) || defined(__NetBSD__) || defined(__DragonFly__)
     int numBytes;
 
     if(ioctl(EDSOCKETHANDLE, FIONREAD, (char *) &numBytes) == -1)