Module 'logging' output nothing from a DLL

[ccll]

I have a Nim executable dynamically loaded a Nim DLL, logging from the main executable works fine, but nothing is output to stdout from the DLL.

Both the EXE and DLL are compiled with "-d:useNimRtl".

[ccll]

Further investigation show that the global threadvar 'level' is shared between EXE and DLL, but 'handlers' does not.

Change 'level' in EXE then print it in DLL show that the change does take effect.
But 'handlers' is always empty in the DLL.

[ccll]

Try to manually pass the loggers to DLL then addHandler() there, still not working as the multi-method (or RTTI) does not work cross DLL boundary.

Related:

1. https://forum.nim-lang.org/t/630
2. Cannot downcast a object passed to a dynamically loaded library #3900 Cannot downcast a object passed to a dynamically loaded library