关闭changed in GCC 7.1的g++编译警告

类似这种：

note: parameter passing for argument of type ‘__gnu_cxx::__normal_iterator<const nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >’ changed in GCC 7.1

 

 

 

加入g++编译选项：-Wno-psabi 解决警告提示