In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:20:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstring:60:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:73:64: error: use of undeclared identifier 'strchr'
char* __libcpp_strchr(const char* __s, int __c) {return (char*)strchr(__s, __c);}
                                                               ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:80:75: error: use of undeclared identifier 'strpbrk'
char* __libcpp_strpbrk(const char* __s1, const char* __s2) {return (char*)strpbrk(__s1, __s2);}
                                                                          ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:87:65: error: use of undeclared identifier 'strrchr'; did you mean 'strchr'?
char* __libcpp_strrchr(const char* __s, int __c) {return (char*)strrchr(__s, __c);}
                                                                ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:75:13: note: 'strchr' declared here
const char* strchr(const char* __s, int __c) {return __libcpp_strchr(__s, __c);}
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:94:76: error: use of undeclared identifier 'memchr'
void* __libcpp_memchr(const void* __s, int __c, size_t __n) {return (void*)memchr(__s, __c, __n);}
                                                                           ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:101:74: error: use of undeclared identifier 'strstr'; did you mean 'strchr'?
char* __libcpp_strstr(const char* __s1, const char* __s2) {return (char*)strstr(__s1, __s2);}
                                                                         ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:77:13: note: 'strchr' declared here
      char* strchr(      char* __s, int __c) {return __libcpp_strchr(__s, __c);}
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:101:74: error: no matching function for call to 'strchr'
char* __libcpp_strstr(const char* __s1, const char* __s2) {return (char*)strstr(__s1, __s2);}
                                                                         ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:77:13: note: candidate disabled: <no message provided>
      char* strchr(      char* __s, int __c) {return __libcpp_strchr(__s, __c);}
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:101:81: error: cannot initialize a parameter of type 'char *' with an lvalue of type 'const char *'
char* __libcpp_strstr(const char* __s1, const char* __s2) {return (char*)strstr(__s1, __s2);}
                                                                                ^~~~
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/string.h:77:32: note: passing argument to parameter '__s' here
      char* strchr(      char* __s, int __c) {return __libcpp_strchr(__s, __c);}
                               ^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:40:12: error: reference to unresolved using declaration
    _VSTD::memcpy(&__r, __p, sizeof(__r));
           ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstring:69:1: note: using declaration annotated with 'using_if_exists' here
using ::memcpy _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:138:13: error: reference to unresolved using declaration
      const uint32_t __a = __loadword<uint32_t>(__s);
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:138:39: error: reference to unresolved using declaration
      const uint32_t __a = __loadword<uint32_t>(__s);
                                      ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:138:39: error: reference to unresolved using declaration
      const uint32_t __a = __loadword<uint32_t>(__s);
                                      ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:139:13: error: reference to unresolved using declaration
      const uint32_t __b = __loadword<uint32_t>(__s + __len - 4);
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:139:39: error: reference to unresolved using declaration
      const uint32_t __b = __loadword<uint32_t>(__s + __len - 4);
                                      ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:139:39: error: reference to unresolved using declaration
      const uint32_t __b = __loadword<uint32_t>(__s + __len - 4);
                                      ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:146:13: error: reference to unresolved using declaration
      const uint32_t __y = static_cast<uint32_t>(__a) +
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:146:40: error: reference to unresolved using declaration
      const uint32_t __y = static_cast<uint32_t>(__a) +
                                       ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:147:41: error: reference to unresolved using declaration
                           (static_cast<uint32_t>(__b) << 8);
                                        ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:148:13: error: reference to unresolved using declaration
      const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
            ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/src/variant.cpp:9:
In file included from /usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/variant:204:
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/__functional/hash.h:148:49: error: reference to unresolved using declaration
      const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
                                                ^
/usr/src/gnu/lib/libcxx/../../../gnu/llvm/libcxx/include/cstdint:159:1: note: using declaration annotated with 'using_if_exists' here
using ::uint32_t _LIBCPP_USING_IF_EXISTS;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.