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       mdebug_hook - Hook function called on an error.


       int mdebug_hook (void)


       Hook function called on an error. The mdebug_hook() function is called when an error
       happens. It returns -1 without doing anything. It is useful to set a break point on this
       function in a debugger.


       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology
       Permission is granted to copy, distribute and/or modify this document under the terms of
       the GNU Free Documentation License <>.