More -Wunused-local-typedef warnings when building Boost 1.54.0 with gcc 4.8.1

[lcarreon@…]

These are the unused-local-typedef warnings specific to Boost.Spirit:

./boost/spirit/home/support/char_set/range_run_impl.hpp:28:48: warning: typedef ‘value_type’ locally defined but not used [-Wunused-local-typedefs]

typedef typename Range::value_type value_type;

./boost/spirit/home/support/char_set/range_run_impl.hpp:29:48: warning: typedef ‘integer_traits’ locally defined but not used [-Wunused-local-typedefs]

typedef integer_traits<value_type> integer_traits;

./boost/spirit/home/classic/core/primitives/primitives.hpp:50:68: warning: typedef ‘result_t’ locally defined but not used [-Wunused-local-typedefs]

typedef typename parser_result<self_t, ScannerT>::type result_t;

./boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp:310:68: warning: typedef ‘iterator_t’ locally defined but not used [-Wunused-local-typedefs]

typedef typename helper_list_t::vector_t::reverse_iterator iterator_t;

./boost/spirit/home/classic/tree/parse_tree.hpp:79:42: warning: typedef ‘attr_t’ locally defined but not used [-Wunused-local-typedefs]

typedef typename match_t::attr_t attr_t;

[Nikita Kniazev <nok.raven@…>]

Fixed with:

• 89c9a8f547a64a4f72810522afacfd64e1a2138d
• 7d1bf7680301331073761e81b85989b9ecee56d5
• ​https://github.com/boostorg/spirit/pull/166
• ​https://github.com/boostorg/spirit/pull/156