What are the three targets in this case? It simply isn’t relevant at all.
> this is pretty close a Canadian Cross
And on that point, your correspondent is right. The two bear no real resemblance to each other. The cross compilation approach described in the article is not something to be held in high regard. It's the result of poor design. It's a lot of work involving esoteric implementation details to solve a problem that the person using the compiler should never have encountered in the first place. It's exactly the problem that the Zig project leader is highlighting in the sticker when he contrasts Zig with Clang, etc.
The way compilers like Go and Zig work is the only reasonable way to approach cross compilation: every compiler should already be able to cross compiler.
If zig were to truly cross compile for every combination of CPU variant and supported version of every operating system, it would require terabytes of storage and already be out of date.
