Mac M1 build ERROR

[JavaHello]

        /Users/luokai/.local/share/nvim/lazy/cmp-dictionary-nanny/server/./jsoncpp/include/value.h:224:10: error: unknown type name 'constexpr'
          static constexpr LargestInt minLargestInt =
                 ^
        /Users/luokai/.local/share/nvim/lazy/cmp-dictionary-nanny/server/./jsoncpp/include/value.h:224:30: error: expected ';' at end of declaration list
          static constexpr LargestInt minLargestInt =
                                     ^
                                     ;
        /Users/luokai/.local/share/nvim/lazy/cmp-dictionary-nanny/server/./jsoncpp/include/value.h:227:10: error: unknown type name 'constexpr'
          static constexpr LargestInt maxLargestInt = LargestInt(LargestUInt(-1) / 2);
                 ^
        /Users/luokai/.local/share/nvim/lazy/cmp-dictionary-nanny/server/./jsoncpp/include/value.h:227:30: error: expected ';' at end of declaration list
          static constexpr LargestInt maxLargestInt = LargestInt(LargestUInt(-1) / 2);
                                     ^
                                     ;
        /Users/luokai/.local/share/nvim/lazy/cmp-dictionary-nanny/server/./jsoncpp/include/value.h:229:10: error: unknown type name 'constexpr'
          static constexpr LargestUInt maxLargestUInt = LargestUInt(-1);
                 ^
        fatal error: too many errors emitted, stopping now [-ferror-limit=]
        39 warnings and 20 errors generated.
        make[2]: *** [CMakeFiles/dict_server.dir/dict_server.cpp.o] Error 1
        make[1]: *** [CMakeFiles/dict_server.dir/all] Error 2
        make: *** [all] Error 2

[denstiny]

I have limit for c + + compiler directives, please try to recompile

[JavaHello]

#include <sys/epoll.h>
               ^~~~~~~~~~~~~
1 error generated.
make[2]: *** [CMakeFiles/dict_server.dir/dict_server.cpp.o] Error 1
 make[1]: *** [CMakeFiles/dict_server.dir/all] Error 2
make: *** [all] Error 2

Mac 上还是报错

[JavaHello]

#3