Dear Christopher, where does cygwin_stackdump() live? I searched through the entire cygwin inst tree, but couldn't find any header where it is defined. If it is a function I just invoke, where does it write the trace dump to? stdout? stderr? thx a lot, H. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/