add configure ac patch

[lilypond.git] / lily / input-smob.cc

diff --git a/lily/input-smob.cc b/lily/input-smob.cc
index 72b293f10c09c3bf968e5433c45815dc656eb501..4d446ab6c014ff5ea320d3d03d91e6420ba2a1d3 100644 (file)
--- a/lily/input-smob.cc
+++ b/lily/input-smob.cc
@@ -1,12 +1,23 @@
 /*
-  input-smob.cc -- implement Input smob
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2000--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2000--2006 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
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "input-smob.hh"
+#include "input.hh"
 #include "source-file.hh"
 #include "std-string.hh"
 
@@ -17,8 +28,8 @@ Input dummy_input_global;
 
 static long input_tag;
 
-static
-SCM mark_smob (SCM s)
+static SCM
+mark_smob (SCM s)
 {
   Input *sc = (Input *) SCM_CELL_WORD_1 (s);
 
@@ -43,6 +54,19 @@ free_smob (SCM s)
   return 0;
 }
 
+static SCM
+equal_smob (SCM sa, SCM sb)
+{
+  Input *a = (Input *) SCM_CELL_WORD_1 (sa);
+  Input *b = (Input *) SCM_CELL_WORD_1 (sb);
+  if (a->get_source_file () == b->get_source_file ()
+      && a->start () == b->start ()
+      && a->end () == b->end ())
+    return SCM_BOOL_T;
+  else
+    return SCM_BOOL_F;
+}
+
 static void
 start_input_smobs ()
 {
@@ -50,7 +74,7 @@ start_input_smobs ()
   scm_set_smob_mark (input_tag, mark_smob);
   scm_set_smob_free (input_tag, free_smob);
   scm_set_smob_print (input_tag, print_smob);
-  scm_set_smob_equalp (input_tag, 0);
+  scm_set_smob_equalp (input_tag, equal_smob);
 }
 
 SCM