Is this dub link flag (-L-lcudart_static) a bug?

[Matheus Catarino]

On Monday, 12 May 2025 at 15:03:00 UTC, mw wrote:
>
> I got a link error: `undefined reference to 
> 'cudaGetDeviceProperties_v2'`.
>
> by adding `--vverbose` dub option, I found the final expanded 
> link cmd is:
>
> ```
> .../ldc2/bin/ldc2 ... -L-L/usr/local/cuda/lib64 
> -L-lcudart_static ...
> ```
>
> This "-L-l" format does not look correct?
>
>
> Then I changed the dub.json to :
>
> ```
> "lflags": [
>   ...
>   /usr/local/cuda/lib64/libcudart_static.a
>   ...
>         ],
> ```
>
> then it links correctly.
>
> I'm just wondering if the dub expansion  "-L-l" format is a 
> bug? (but looks like this same expansion works for other 
> libraries?)
>
> Thanks.


In the dub `libs:["mylibname_noext"]` + 
`lflags:["-L/Path/to/lib"]`

In side: `-L-L/path -L-lmylibname_noext`.

If you need to pass a specific file (.o, .obj, .a, .lib) add in 
`sourceFiles:["..."]`

The problem presented shows that this library possibly has other 
dependencies.

Have you looked into the cuda community? I did a quick search and 
saw a similar problem involving cuda12.

Unfortunately, I've never tried anything involving cuda. Sorry if 
this doesn't answer properly.