/usr/include/boost/ratio/detail/overflow_helpers.hpp(105): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(X <= max - Y , BOOST_RATIO_OVERFLOW_IN_ADD, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(123): error: member "boost::ratio_detail::br_add<X, Y, -1L>::min" is not a type name
        BOOST_RATIO_STATIC_ASSERT(min - Y <= X, BOOST_RATIO_OVERFLOW_IN_ADD, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(123): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(min - Y <= X, BOOST_RATIO_OVERFLOW_IN_ADD, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(137): error: member "boost::ratio_detail::br_sub<X, Y, 1L>::min" is not a type name
        BOOST_RATIO_STATIC_ASSERT(min + Y <= X, BOOST_RATIO_OVERFLOW_IN_SUB, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(137): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(min + Y <= X, BOOST_RATIO_OVERFLOW_IN_SUB, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(155): error: constant "X" is not a type name
        BOOST_RATIO_STATIC_ASSERT(X <= max + Y, BOOST_RATIO_OVERFLOW_IN_SUB, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(155): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(X <= max + Y, BOOST_RATIO_OVERFLOW_IN_SUB, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(171): error: constant "X" is not a type name
        BOOST_RATIO_STATIC_ASSERT(X != nan, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(171): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(X != nan, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(172): error: constant "Y" is not a type name
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(172): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(172): error: invalid redeclaration of member function "boost::ratio_detail::br_mul<X, Y>::static_assert(<error-type>)" (declared at line 171)
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(173): error: member "boost::ratio_detail::br_mul<X, Y>::a_x" is not a type name
        BOOST_RATIO_STATIC_ASSERT(a_x <= max / a_y, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(173): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(a_x <= max / a_y, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(173): error: invalid redeclaration of member function "boost::ratio_detail::br_mul<X, Y>::static_assert(<error-type>)" (declared at line 171)
        BOOST_RATIO_STATIC_ASSERT(a_x <= max / a_y, BOOST_RATIO_OVERFLOW_IN_MUL, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(207): error: constant "X" is not a type name
        BOOST_RATIO_STATIC_ASSERT(X != nan, BOOST_RATIO_OVERFLOW_IN_DIV, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(207): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(X != nan, BOOST_RATIO_OVERFLOW_IN_DIV, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(208): error: constant "Y" is not a type name
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_DIV, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(208): error: expected a ")"
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_DIV, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(208): error: invalid redeclaration of member function "boost::ratio_detail::br_div<X, Y>::static_assert(<error-type>)" (declared at line 207)
        BOOST_RATIO_STATIC_ASSERT(Y != nan, BOOST_RATIO_OVERFLOW_IN_DIV, ());
        ^

/usr/include/boost/ratio/detail/overflow_helpers.hpp(209): error: constant "Y" is not a type name
        BOOST_RATIO_STATIC_ASSERT(Y != 0, BOOST_RATIO_DIVIDE_BY_0, ());
        ^