X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fcontext-mod-scheme.cc;h=493e151c1d93a944b49133a21eabad224e40047c;hb=3c5b5ffb8dc8bdb3295e6105afd18afeb85a9d88;hp=5028cfdf4d7f1563fd0e0868b4fe544bedb8a67b;hpb=5bbfc22fce036b9b69df5e420de93e11da23c05e;p=lilypond.git

diff --git a/lily/context-mod-scheme.cc b/lily/context-mod-scheme.cc
index 5028cfdf4d..493e151c1d 100644
--- a/lily/context-mod-scheme.cc
+++ b/lily/context-mod-scheme.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2010--2014 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 2010--2015 Jan Nieuwenhuizen <janneke@gnu.org>
   Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
@@ -47,7 +47,7 @@ LY_DEFINE (ly_make_context_mod, "ly:make-context-mod",
            "Creates a context modification, optionally initialized"
            " via the list of modifications @var{mod-list}.")
 {
-  if (mod_list != SCM_UNDEFINED)
+  if (!SCM_UNBNDP (mod_list))
     {
       LY_ASSERT_TYPE (ly_cheap_is_list, mod_list, 1);
       return Context_mod (mod_list).smobbed_copy ();