The following program causes infinite recursion in 
std::has_facet<std::messages<wchar_t> >:

#include <iostream>

int main()
{
  std::cout.imbue(std::locale("fr_BE.ISO-8859-1"));
  std::cout << 3;
}

The program immediately crashes without outputting the expected 3. A backtrace
in GDB just produces an awful lot of has_facet lines. I've tried limiting the
stack size with "ulimit -s", but no luck. This is on Debian unstable, x86.