[llvm-dev] Updating config.guess, license change

[Petr Hosek via llvm-dev]

You can construct the triple from the variables CMake provides, we already
do this for some of the targets:
https://github.com/llvm/llvm-project/blob/00d5f1ecccc6d8ece9ac6dd19e9ad807c8a60097/llvm/cmake/modules/GetHostTriple.cmake

I'd prefer expanding GetHostTriple.cmake until it covers all the targets we
support. I don't think it'd necessarily require reimplementing all of
config.guess, since config.guess covers a lot of targets most of which
aren't supported by LLVM.

On Sat, Apr 3, 2021 at 8:59 AM Harald van Dijk via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> On 02/04/2021 22:52, Michael Kruse wrote:
> > Is there a possibility to ask CMake for the host's triple?
>
> There isn't, unfortunately: CMake does not use triples and does not
> provide it in a variable. It does provide us with predefined variables
> that provide information similar to what uname gives, which could be
> used to build the triple ourselves, but that would amount to rewriting
> config.guess in CMake.
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