This avoids an eventual stack overflow in exception-heavy applications.
Important note: when using the experimental Wow64 support on Linux, this change causes a crash during exception handling when unix_funcs->unwind_builtin_dll is called.
The call in dll/ntdll/signal_x86_64.c virtual_unwind() to unix_funcs->unwind_builtin_dll() should be commented out and replaced with 'status = STATUS_UNSUCCESSFUL;'. This is along the same lines as needing to comment out the unix_funcs->init_builtin_dll() call for Wow64.