Fix variable pathname spacing

[TankedThomas]

Fixes #1043 (additional fixes, this time for external/pico_sdk_import.cmake).

Some pathname spacing (and special characters) still causes issues.
Related to this pull request from raspberrypi/debugprobe.

I'm not 100% sure about this pull request because I couldn't replicate the issue with pico-sdk, but since I had this issue with downstream and these fixes worked (and for consistency), I figured it was worth pushing the changes upstream anyway.

[lurch]

I'm not 100% sure about this pull request because I couldn't replicate the issue with pico-sdk

That's probably because this cmake file is in external/ and there's nothing in pico-sdk itself which actually uses it! It only exists so that it can be copied into external projects (like debugprobe) that wish to make use of pico-sdk 🙂

[TankedThomas]

I'm not 100% sure about this pull request because I couldn't replicate the issue with pico-sdk

That's probably because this cmake file is in external/ and there's nothing in pico-sdk itself which actually uses it! It only exists so that it can be copied into external projects (like debugprobe) that wish to make use of pico-sdk 🙂

Ah, right. So it's worth keeping the changes then, since it'll be pulled downstream by other projects.

[kilograham]

Keeping this around, but will copy the upstream version when it is updated

[lurch]

Keeping this around, but will copy the upstream version when it is updated

Huh, what's "upstream" of pico-sdk?

[kilograham]

upstream FreeRTOS FreeRTOS/FreeRTOS-Kernel#1255

[lurch]

Ahhh, I hadn't seen that issue. Sorry!