* dtable.cc (dtable::set_file_pointers_for_exec): New function.

* dtable.h (dtable::set_file_pointers_for_exec): Declare new function.
* spawn.cc (spawn_guts): Call dtable::set_file_pointers_for_exec to set
pointers to EOF when execing non-cygwin applications.

winsup/cygwin/dtable.h

@@ -78,6 +78,7 @@ public:
   operator fhandler_base **() {return fds;}
   void stdio_init ();
   void get_debugger_info ();
+  void set_file_pointers_for_exec ();
 };
 
 void dtable_init (void);