Todd Gamblin 7f24b11675 Vendor typing_extensions ...

We are using more and more typing features in Spack, and without features like
protocols, typing core is becoming harder and harder.

I think it's worth vendoring `typing_extensions` for this. It will get us a number of
useful capabilities:

* `Literal`
* `TypedDict`
* `Protocol`

among others.

Signed-off-by: Todd Gamblin <tgamblin@llnl.gov>

2024-12-17 07:25:14 -08:00

..

spack

Vendor typing_extensions

2024-12-17 07:25:14 -08:00