new file mode 100644
--- /dev/null
+++ b/packages/net/snmp/lib/current/include/mt_support.h
@@ -0,0 +1,162 @@
+//==========================================================================
+//
+//      ./lib/current/include/mt_support.h
+//
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//####UCDSNMPCOPYRIGHTBEGIN####
+//
+// -------------------------------------------
+//
+// Portions of this software may have been derived from the UCD-SNMP
+// project,  <http://ucd-snmp.ucdavis.edu/>  from the University of
+// California at Davis, which was originally based on the Carnegie Mellon
+// University SNMP implementation.  Portions of this software are therefore
+// covered by the appropriate copyright disclaimers included herein.
+//
+// The release used was version 4.1.2 of May 2000.  "ucd-snmp-4.1.2"
+// -------------------------------------------
+//
+//####UCDSNMPCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    hmt
+// Contributors: hmt
+// Date:         2000-05-30
+// Purpose:      Port of UCD-SNMP distribution to eCos.
+// Description:  
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+/********************************************************************
+       Copyright 1989, 1991, 1992 by Carnegie Mellon University
+
+			  Derivative Work -
+Copyright 1996, 1998, 1999, 2000 The Regents of the University of California
+
+			 All Rights Reserved
+
+Permission to use, copy, modify and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appears in all copies and
+that both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of CMU and The Regents of
+the University of California not be used in advertising or publicity
+pertaining to distribution of the software without specific written
+permission.
+
+CMU AND THE REGENTS OF THE UNIVERSITY OF CALIFORNIA DISCLAIM ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL CMU OR
+THE REGENTS OF THE UNIVERSITY OF CALIFORNIA BE LIABLE FOR ANY SPECIAL,
+INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+FROM THE LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*********************************************************************/
+
+/* mt_support.h - multi-thread resource locking support declarations */
+/*
+ * Author: Markku Laukkanen
+ * Created: 6-Sep-1999
+ * History:
+ *  8-Sep-1999 M. Slifcak method names changed;
+ *                        use array of resource locking structures.
+ */
+
+#ifndef MT_SUPPORT_H
+#define MT_SUPPORT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Lock group identifiers */
+
+#define MT_LIBRARY_ID      0
+#define MT_APPLICATION_ID  1
+#define MT_TOKEN_ID        2
+
+#define MT_MAX_IDS         3  /* one greater than last from above */
+#define MT_MAX_SUBIDS      10
+
+
+/* Lock resource identifiers for library resources */
+
+#define MT_LIB_NONE        0
+#define MT_LIB_SESSION     1
+#define MT_LIB_REQUESTID   2
+#define MT_LIB_MESSAGEID   3
+#define MT_LIB_SESSIONID   4
+#define MT_LIB_TRANSID     5
+
+#define MT_LIB_MAXIMUM     6  /* must be one greater than the last one */
+
+
+#ifdef _REENTRANT
+
+#if HAVE_PTHREAD_H
+
+#include <pthread.h>
+typedef pthread_mutex_t mutex_type;
+#ifdef pthread_mutexattr_default
+    #define MT_MUTEX_INIT_DEFAULT pthread_mutexattr_default
+#else
+    #define MT_MUTEX_INIT_DEFAULT 0
+#endif
+
+#elif defined(WIN32) || defined(cygwin)
+
+#include <windows.h>
+typedef CRITICAL_SECTION  mutex_type;
+
+#else
+  error "There is no re-entrant support as defined."
+#endif
+
+int snmp_res_init(void);
+int snmp_res_lock(int groupID, int resourceID);
+int snmp_res_unlock(int groupID, int resourceID);
+int snmp_res_destroy_mutex(int groupID, int resourceID);
+
+#else  /* !_REENTRANT */
+
+#define snmp_res_init() do {} while (0)
+#define snmp_res_lock(x,y) do {} while (0)
+#define snmp_res_unlock(x,y) do {} while (0)
+#define snmp_res_destroy_mutex(x,y) do {} while (0)
+
+#endif /* !_REENTRANT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MT_SUPPORT_H */
+