importC error Error: undefined identifier `__builtin_unreachable`

[Dakota]

On Monday, 26 February 2024 at 08:18:53 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
>
> On 26/02/2024 9:04 PM, Dakota wrote:
>> I try one more importC case, get this error:
>> 
>> ```sh
>> Error: undefined identifier `__builtin_unreachable`
>> ```
>> 
>> any tips to fix this?
>
> Reported: https://issues.dlang.org/show_bug.cgi?id=24413

Thanks.

can you help add one more bugs:

```sh
  Error: undefined identifier `__builtin_clz`
```