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diff --git a/gfsm/gfsm/src/libgfsm/gfsmError.h b/gfsm/gfsm/src/libgfsm/gfsmError.h
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+++ b/gfsm/gfsm/src/libgfsm/gfsmError.h
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+
+/*=============================================================================*\
+ * File: gfsmError.h
+ * Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
+ * Description: finite state machine library
+ *
+ * Copyright (c) 2004 Bryan Jurish.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *=============================================================================*/
+
+/** \file gfsmError.h
+ *  \brief Error utilities
+ */
+
+#ifndef _GFSM_ERROR_H
+#define _GFSM_ERROR_H
+
+#include <glib.h>
+
+/*======================================================================
+ * Types
+ */
+/// struct for errors
+typedef GError gfsmError;
+
+/*======================================================================
+ * Constants
+ */
+/** Constant indicating no error condition */
+#define gfsmErrorNone NULL
+
+/*======================================================================
+ * Error Methods
+ */
+/** Report a warning and continue; does nothing if error==NULL */
+void gfsm_carp_named(gfsmError *error, const gchar *myname);
+
+/** Report a warning and continue; does nothing if error==NULL */
+#define gfsm_carp(e) gfsm_carp_named(e,NULL)
+
+/** carp and exit with code error->code ; does nothing if error==NULL */
+void gfsm_die_named(gfsmError *error, const gchar *myname);
+
+/** die using default diagnostic name "gfsm"; does nothing if error==NULL */
+#define gfsm_die(e) gfsm_die_named(e,NULL)
+
+/** do or die */
+#define gfsm_do_or_die(e) gfsm_die_named(e,NULL)
+
+#endif /* _GFSM_UTILS_H */