How to enumerate a BOOST_ENUM with BOOST_FOREACH?

Can somebody please explain me how to enumerate a BOOST_ENUM using BOOST_FOREACH ? The example below show that I got it to work with std::for_each, but not with BOOST_FOREACH.

Sample code :

BOOST_ENUM_VALUES(  MyEnum, 
  const char *, 
      (xMin)("xMin")
      (xMax)("xMax")
      (yMin)("yMin")
      (yMax)("yMax")
);

void blah(const MyEnum & val)  // working demo with std_foreach
{
  std::cout << "index=" << val.index() << " val=" << val.value() << " str=" << val.str() << std::endl;
}


void foo()
{
  //BOOST_FOREACH : does not compile...
  BOOST_FOREACH(MyEnum myEnum, MyEnum() ) // I tried to construct a "dummy" enum in order to use its iterator with no luck...
  {
    std::cout << "index=" << myEnum.index() << " val=" << myEnum.value() << " str=" << myEnum.str() << std::endl;
  }

  //std::for_each : works...
  std::for_each(MyEnum::begin(), MyEnum::end(), blah);

}

Many thanks in advance!

Edit: as mentioned in the answer, the code does work with the newest codebase of boost.

Your example code above compiles and runs just fine for me with gcc 4.5.1 and vc2010 (after adding the corresponding #include's, that is). I tried with enum_rev4.6 from the vault. What compilation errors do you see?