$NetBSD: patch-src_foreign_vigra_vigra_cachedfileimage.hxx,v 1.2 2014/12/27 02:46:41 dholland Exp $

--- src/foreign/vigra/vigra/cachedfileimage.hxx.orig	2013-06-25 21:58:48.000000000 +0000
+++ src/foreign/vigra/vigra/cachedfileimage.hxx
@@ -554,11 +554,11 @@ class NotifyingDirectionSelector;
 template <class T, class Notify>
 class NotifyingDirectionSelector<UnstridedArrayTag, T, Notify>
 {
-#ifdef __GNUC__
+#if defined(__GNUC__) && !defined(__clang__)
 friend class Notify::self_type;
 #else
 friend typename Notify::self_type;
 #endif
 protected:
     NotifyingDirectionSelector(T base = 0) : current_(base), notify_(NULL) {}
     NotifyingDirectionSelector(NotifyingDirectionSelector const & rhs) : current_(rhs.current_), notify_(NULL) {}