On Thu, Dec 14, 2023, 10:45 Chuanqi Xu <chuanqi.xcq_at_[hidden]> wrote:

> I don't understand the question. I mean, is it true that we have a
> one-to-one (or zero) map from platforms to default standard libraries?
>

It is set at the time the compiler is built. I wouldn't say it's "platform"
specific. As this is chosen by whoever built the compiler (e.g.: the
maintainer for the gcc package in Debian).

If it is not true, then I misunderstood it from the beginning. And if it is
> true, why can't the build system get the maps then get the standard
> libraries by the current platforms?
>

That interface doesn't exist in a well defined way today. In large part
because it's not necessary, as the build system doesn't quite need to know
that the std library even is.

Daniel

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