Collision between boost::numeric::ublas::vector and std::vector in clang-503.0.40

Question

So I have a piece of code that I'm trying to compile on an older machine that relies on both std::vector for data storage and boost::numeric::ublas::vector for linear algebra purposes. Both are fully disambiguated in the code; attempting to create a variable of type vector fails (I do have a namespace alias namespace ublas = boost::numeric::ublas; in the header for sanity). When I attempt to compile this code on a newer Mac running clang-600.0.56, it compiles fine, but when I try to compile it on an older Mac running clang-503.0.40, it fails to compile. The error message I receive is:

/usr/include/c++/4.2.1/bits/stl_iterator_base_types.h:129:35: error: no type named 'iterator_category' in 'boost::numeric::ublas::vector<double, boost::numeric::ublas::unbounded_array<double, std::allocator<double> > >'
/usr/include/c++/4.2.1/bits/stl_iterator_base_funcs.h:114:21: note: in instantiation of template class 'std::iterator_traits<boost::numeric::ublas::vector<double, boost::numeric::ublas::unbounded_array<double, std::allocator<double> > > >' requested here
inline typename iterator_traits<_InputIterator>::difference_type
                ^
/usr/include/c++/4.2.1/bits/stl_iterator_base_funcs.h:115:5: note: while substituting deduced template arguments into function template 'distance' [with _InputIterator = boost::numeric::ublas::vector<double, boost::numeric::ublas::unbounded_array<double,
  std::allocator<double> > >]
distance(_InputIterator __first, _InputIterator __last)

This is at the end of a chain of includes stepping through boost and then into the STL. I'm 99% certain this is a problem related to disambiguation of std::vector and ublas::vector, as iterator_category is a member of the former and not of the latter. As further evidence, we have code that uses std::vector and code that uses ublas::vector that all compiles fine but we don't appear to have any code in our codebase that relies on both until now.

Has anybody run into a similar issue before and found a way to resolve it that does not involve stripping either the std::vector or ublas::vector dependencies from my code or updating the compiler?

Both machines use boost-1.48.0 and I am limited to C++03 on both.