[Upstream #3910] `mbedtls.cfg.h` is not accessible when using local SDKs via uFBT

[joseguzman1337]

Originally from: flipperdevices#3910
Original author: @CookiePLMonster
Created: 2024-09-18T18:35:01Z
State: open

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Describe the bug.

Attempting to use a self-built SDK with uFBT via ufbt update --local=X seems to be unable to detect mbedtls.cfg.h, even though it is bundled in the .zip update package:

In file included from H:/dev/flipper-zero/.ufbt/current/sdk_headers/f7_sdk/lib/mbedtls/include/mbedtls/bignum.h:14,
                 from H:\dev\flipper-zero\flipper-bakery\flipper95\flipper95.c:14:
H:/dev/flipper-zero/.ufbt/current/sdk_headers/f7_sdk/lib/mbedtls/include/mbedtls/build_info.h:79:10: error: #include expects "FILENAME" or <FILENAME>
   79 | #include MBEDTLS_CONFIG_FILE
      |          ^~~~~~~~~~~~~~~~~~~

Am I maybe missing a step in my local SDK builds and I need more than just ./fbt updater_package?

Reproduction

I'll outline the steps using my own app, but it's unlikely to be isolated to just that.

1. Have a local debug SDK build done from FBT, in my case build with ./fbt updater_package.
2. Switch uFBT to use this local SDK - ufbt update --local=h:\dev\flipper-zero\flipperzero-firmware\dist\f7-D\flipper-z-f7-sdk-local.zip --hw-target=f7
3. Clone Flipper95 and set up ufbt vscode_dist on it.
4. Attempt to build the app with ufbt.
5. Observe a sdk_headers/f7_sdk/lib/mbedtls/include/mbedtls/build_info.h:79:10: error: #include expects "FILENAME" or <FILENAME> error.
6. Switch uFBT to the latest dev or release track via ufbt update --channel=release/dev.
7. Attempt to build the app again.
8. Observe the errror does not occur.

Target

f7 with latest dev release

Logs

No response

Anything else?

No response