Web-ja: update introduction

[lilypond.git] / lily / directional-element-interface.cc

diff --git a/lily/directional-element-interface.cc b/lily/directional-element-interface.cc
index befbc29d7e5e9df693a714074c65f3e17ba72023..eb342fe1ac1c89a01cbe50eeb734ce97444b2edb 100644 (file)
--- a/lily/directional-element-interface.cc
+++ b/lily/directional-element-interface.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1999--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1999--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
@@ -25,9 +25,10 @@ Direction
 get_grob_direction (Grob *me)
 {
   SCM d = me->get_property ("direction");
-  if (d == ly_symbol2scm ("calculation-in-progress"))
+  if (scm_is_eq (d, ly_symbol2scm ("calculation-in-progress")))
     {
-      programming_error ("Grob direction requested while calculation in progress. ");
+      programming_error ("Grob direction requested while calculation in"
+                         " progress.");
       return UP;
     }
   if (!is_direction (d))