X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fprogram-option-scheme.cc;h=80cd0e4e2fc25193c5ecc327c726a626700db83f;hb=aa95943866a89d98f3af24bcb90b7859a043afba;hp=71538d69e699eed04babfbcd3d44fac8e710e019;hpb=99b6f3aa3558b01c9d4158b19a1f1794c534f89c;p=lilypond.git

diff --git a/lily/program-option-scheme.cc b/lily/program-option-scheme.cc
index 71538d69e6..80cd0e4e2f 100644
--- a/lily/program-option-scheme.cc
+++ b/lily/program-option-scheme.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2001--2014  Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2001--2015  Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -208,7 +208,7 @@ LY_DEFINE (ly_set_option, "ly:set-option", 1, 1, 0, (SCM var, SCM val),
 {
   LY_ASSERT_TYPE (ly_is_symbol, var, 1);
 
-  if (val == SCM_UNDEFINED)
+  if (SCM_UNBNDP (val))
     val = SCM_BOOL_T;
 
   string varstr = robust_symbol2string (var, "");
@@ -219,7 +219,7 @@ LY_DEFINE (ly_set_option, "ly:set-option", 1, 1, 0, (SCM var, SCM val),
     }
 
   SCM handle = scm_hashq_get_handle (option_hash, var);
-  if (handle == SCM_BOOL_F)
+  if (scm_is_false (handle))
     warning (_f ("no such internal option: %s", varstr.c_str ()));
 
   internal_set_option (var, val);