In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:97:11: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:97:25: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
                        ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:100:18: error: reference to unresolved using declaration
    static const intmax_t value = __static_gcd<_Yp, _Xp % _Yp>::value;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:103:11: error: reference to unresolved using declaration
template <intmax_t _Xp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:106:18: error: reference to unresolved using declaration
    static const intmax_t value = _Xp;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:112:18: error: reference to unresolved using declaration
    static const intmax_t value = 1;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:117:11: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:117:25: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
                        ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:120:18: error: reference to unresolved using declaration
    static const intmax_t value = _Xp / __static_gcd<_Xp, _Yp>::value * _Yp;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:123:11: error: reference to unresolved using declaration
template <intmax_t _Xp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:126:18: error: reference to unresolved using declaration
    static const intmax_t value = _Xp < 0 ? -_Xp : _Xp;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:129:11: error: reference to unresolved using declaration
template <intmax_t _Xp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:132:18: error: reference to unresolved using declaration
    static const intmax_t value = _Xp == 0 ? 0 : (_Xp < 0 ? -1 : 1);
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:135:11: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp, intmax_t = __static_sign<_Yp>::value>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:135:25: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp, intmax_t = __static_sign<_Yp>::value>
                        ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:135:39: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp, intmax_t = __static_sign<_Yp>::value>
                                      ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:138:11: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:138:25: error: reference to unresolved using declaration
template <intmax_t _Xp, intmax_t _Yp>
                        ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/atomic.cpp:13:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/atomic:582:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__threading_support:15:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/chrono:831:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/ratio:141:18: error: reference to unresolved using declaration
    static const intmax_t min = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1;
                 ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:185:1: note: using declaration annotated with 'using_if_exists' here
using ::intmax_t _LIBCPP_USING_IF_EXISTS;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.