This has come up lots of times before.. I just wanted to effectively +1 this request.
I have some templates, and some reasonably complex functions I use strictly via CTFE to produce enums and evaluate conditions within the templates. When I build my code, I notice that the CTFE functions, which are never referenced in any runtime code, are still present in the object file. Additionally, one of these functions requires I import std.string, which is only used in CTFE code, and is otherwise a pointless import. I'd certainly like to be able to mark these functions CTFE to be sure no runtime code will ever be generated for them, and also, what can I do about CTFE imports? I don't want that import in my binary...
