std.int128 not working with -betterC enabled

[Renato]

On Wednesday, 20 December 2023 at 18:16:00 UTC, Renato wrote:
>
> But with -betterC:
>
> ```
> dmd -L-ld_classic -betterC -run dasc.d
> Undefined symbols for architecture x86_64:
>   "__D3std6int1286Int1286__ctorMFNaNbNcNiNfllZSQBpQBoQBk", 
> referenced from:
>       _main in dasc.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to 
> see invocation)
> Error: linker exited with status 1
>
> Compilation exited abnormally with code 1 at Wed Dec 20 19:11:56
> ```
>
> I don't see anywhere whether int128 is supposed to work on 
> -betterC. Is it not supported?

This problem does not seem to be specific to int128 or even to 
-betterC.

Just now, in another thread someone told me about the 
`-checkaction=context` compiler option... and when I use that, I 
get the same kind of error:

```
dmd -L-ld_classic -unittest -checkaction=context -run main.d
Undefined symbols for architecture x86_64:
   "_main", referenced from:
      implicit entry/start for main executable
      (maybe you meant: 
__D4core6thread10threadbase10ThreadBase7sm_mainCQBtQBrQBnQBe, 
__D4core6thread8osthread16_mainThreadStoreG312v )
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to 
see invocation)
Error: linker exited with status 1
```

I am looking forward for the new DMD compiler version to be 
released which fixes the MacOS linker issues!