$NetBSD: patch-ac,v 1.8 2008/04/29 13:54:55 wiz Exp $

--- lib/freading.c.orig	2007-11-10 15:24:02 -0800
+++ lib/freading.c	2008-04-14 17:41:47 -0700
@@ -42,6 +42,8 @@
 #elif defined __QNX__               /* QNX */
   return ((fp->_Mode & 0x2 /* _MOPENW */) == 0
 	  || (fp->_Mode & 0x1000 /* _MREAD */) != 0);
+#elif defined __DragonFly__	    /* DragonFly */
+  return ((((struct __FILE_public *)fp)->_flags & __SRD) != 0);
 #else
  #error "Please port gnulib freading.c to your platform!"
 #endif