Let second argument of interpret_stencil_expression return an SCM value

[lilypond.git] / lily / paper-outputter.cc

diff --git a/lily/paper-outputter.cc b/lily/paper-outputter.cc
index 57efb2fb35be2c547ab963c8ab0726ee62c296b0..06b490472c7b5a2ef9e378dbcfa87e07afc75da3 100644 (file)
--- a/lily/paper-outputter.cc
+++ b/lily/paper-outputter.cc
@@ -105,17 +105,20 @@ Paper_outputter::module () const
   return output_module_;
 }
 
-void
+SCM
 Paper_outputter::output_scheme (SCM scm)
 {
-  dump_string (scheme_to_string (scm));
+  SCM str = scheme_to_string (scm);
+  if (scm_is_string (str))
+    dump_string (str);
+  return str;
 }
 
-void
+SCM
 paper_outputter_dump (void *po, SCM x)
 {
   Paper_outputter *me = (Paper_outputter *) po;
-  me->output_scheme (x);
+  return me->output_scheme (x);
 }
 
 void