Jayesh Badwaik

> simulating the common practice of #defineing a _ macro that handles translation. I'm curious as to what practice is this. I've somehow never come across this before. Defining a...

The restriction of allowing only a single object key is during the parsing, not emission.

One way to implement that in your codebase I see is to throw in case of duplicate in here: https://github.com/CPPAlliance/json/blob/ec29dfa768a16672534f758005dfe4841a8ea93d/include/boost/json/detail/impl/object_impl.ipp#L79 And handle that exception upward to report that the provided...

That can work too, yeah.

The correct solution would be to never have a specialization only in one TU. All specializations should exist in all TUs identically. Otherwise, it is always an ODR violation, irrespective...

@stertingen Are you using CMake > 3.25, because since CMake 3.25, `add_subdirectory` [provides an option](https://cmake.org/cmake/help/latest/command/add_subdirectory.html#command:add_subdirectory) to add `SYSTEM` which seems a much more robust way of doing things: 1. It...