Index: boost/math/special_functions/beta.hpp
===================================================================
--- boost/math/special_functions/beta.hpp	(revision 85073)
+++ boost/math/special_functions/beta.hpp	(working copy)
@@ -1331,7 +1331,6 @@
    BOOST_FPU_EXCEPTION_GUARD
    typedef typename tools::promote_args<RT1, RT2, RT3>::type result_type;
    typedef typename policies::evaluation<result_type, Policy>::type value_type;
-   typedef typename lanczos::lanczos<value_type, Policy>::type evaluation_type;
    typedef typename policies::normalise<
       Policy, 
       policies::promote_float<false>, 
@@ -1349,7 +1348,6 @@
    BOOST_FPU_EXCEPTION_GUARD
    typedef typename tools::promote_args<RT1, RT2, RT3>::type result_type;
    typedef typename policies::evaluation<result_type, Policy>::type value_type;
-   typedef typename lanczos::lanczos<value_type, Policy>::type evaluation_type;
    typedef typename policies::normalise<
       Policy, 
       policies::promote_float<false>,