X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fstencil-expression.cc;h=6e51ec9b9d5ec334340c0617affdaf61b269698d;hb=c2ccda3e91d408453744bd03882c6b0584a9561a;hp=06fe314fd0e5e043fe9cc604149e3711257e172c;hpb=260073be07f49a5f6f3be8df2af52873843eec60;p=lilypond.git

diff --git a/lily/stencil-expression.cc b/lily/stencil-expression.cc
index 06fe314fd0..6e51ec9b9d 100644
--- a/lily/stencil-expression.cc
+++ b/lily/stencil-expression.cc
@@ -4,22 +4,22 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
+  (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "stencil.hh"
 
-#include "protected-scm.hh"
-
-static Protected_scm heads = SCM_EOL;
+static SCM heads;
 
 void register_stencil_head (SCM symbol)
 {
-  scm_set_object_property_x (symbol, ly_symbol2scm ("stencil-head?"), SCM_BOOL_T);
-  heads = scm_cons (symbol, heads);
+  if (!heads)
+    heads = scm_permanent_object (scm_cons (SCM_EOL, SCM_EOL));
   
+  scm_set_object_property_x (symbol, ly_symbol2scm ("stencil-head?"), SCM_BOOL_T);
+  scm_set_cdr_x (heads,  scm_cons (symbol, scm_cdr (heads)));
 }
+
 bool
 is_stencil_head (SCM symbol)
 {
@@ -30,6 +30,6 @@ is_stencil_head (SCM symbol)
 SCM
 all_stencil_heads ()
 {
-  return heads;
+  return scm_cdr (heads);
 }
-  
+