new file mode 100644
--- /dev/null
+++ b/packages/error/current/include/errno.h
@@ -0,0 +1,89 @@
+#ifndef CYGONCE_ERROR_ERRNO_H
+#define CYGONCE_ERROR_ERRNO_H
+/*========================================================================
+//
+//      errno.h
+//
+//      ISO C errno variable and constants
+//
+//========================================================================
+//####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####
+//========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     jlarmour
+// Contributors:  jlarmour
+// Date:          2000-04-14
+// Purpose:       This file provides the errno variable (or more strictly
+//                expression) required by ISO C and POSIX 1003.1
+// Description: 
+// Usage:         Do not include this file directly - use #include <errno.h>
+//
+//####DESCRIPTIONEND####
+//
+//======================================================================*/
+
+/* CONFIGURATION */
+
+#include <pkgconf/error.h>         /* Configuration header */
+
+#ifdef CYGPKG_ERROR_ERRNO
+
+/* INCLUDES */
+
+#include <cyg/error/codes.h>       /* for Cyg_ErrNo */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* FUNCTION PROTOTYPES */
+
+
+#ifdef CYGSEM_ERROR_PER_THREAD_ERRNO
+
+extern Cyg_ErrNo * const
+cyg_error_get_errno_p( void ) __attribute__((const));
+
+#endif /* ifdef CYGSEM_ERROR_PER_THREAD_ERRNO */
+
+
+/* VARIABLES */
+
+#ifdef CYGSEM_ERROR_PER_THREAD_ERRNO
+# define errno (*cyg_error_get_errno_p())  /* Per-thread error status */
+#else
+extern Cyg_ErrNo errno;                /* Global error status */
+#endif /* ifdef CYGSEM_ERROR_PER_THREAD_ERRNO */
+
+#ifdef __cplusplus
+}   /* extern "C" */
+#endif
+
+#endif /* ifdef CYGPKG_ERROR_ERRNO */
+
+#endif /* CYGONCE_ERROR_ERRNO_H multiple inclusion protection */
+
+/* EOF errno.h */