X-Git-Url: http://git.hcoop.net/bpt/guile.git/blobdiff_plain/a41bed83ab2d2f0bf93c06115c695280d04d13e6..e0c211bb2e80605b4ae3fb121c34136f6e266b70:/libguile/procprop.c?ds=sidebyside

diff --git a/libguile/procprop.c b/libguile/procprop.c
index 56bd3896b..ff4648d00 100644
--- a/libguile/procprop.c
+++ b/libguile/procprop.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1996,1998,2000,2001,2003,2004, 2006, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1998,2000,2001,2003,2004, 2006, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
  * 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -72,7 +72,15 @@ scm_i_procedure_arity (SCM proc, int *req, int *opt, int *rest)
         {
           if (!SCM_SMOB_APPLICABLE_P (proc))
             return 0;
-          proc = scm_i_smob_apply_trampoline (proc);
+          if (!scm_i_program_arity (SCM_SMOB_DESCRIPTOR (proc).apply_trampoline,
+                                    req, opt, rest))
+            return 0;
+
+          /* The trampoline gets the smob too, which users don't
+             see.  */
+          *req -= 1;
+
+          return 1;
         }
       else
         return 0;