lingxd

// Source: https://stackoverflow.com/a/48368508/17132546

// Entry template
//	extract the lambda's operaor() function signature
template <class F, class T=F>
struct lambda_traits: lambda_traits<decltype(&std::remove_reference<F>::type::operator()), F>
{};

// For mutable lambda, See https://en.cppreference.com/w/cpp/language/lambda
//	mutable lambda's operator() is not const,

lingxd

# Parameter:
#    LOG MODULE: folder name
#    BIND_PORT: network sinker register port
#    SEND_PORT: network sinker publish port

macro(enable_logging LOG_MODULE BIND_PORT SEND_PORT)
    if(NOT spdlog_FOUND)
        find_package(spdlog REQUIRED)
    endif()
    if(NOT Boost_FOUND)