D programming language popularity

[IGotD-]

On Wednesday, 11 November 2020 at 13:30:32 UTC, Araq wrote:
>
> Nim does go this step further and allows for custom pointer 
> types. Not that good of an idea, interop between libraries 
> doesn't improve when they cannot even agree on the used pointer 
> type, but it is supported in Nim.

Isn't that the case as well when you change the GC algorithm? 
Sure shared libraries that are compiled with one type GC and 
another with a different one will cause problems. Is there a 
possibility to detect this, with name mangling for example?