OPENTHREAD_CUSTOM_PARAMETERS does not seem to work

[neye-zhaw]

OpenThread defines set with the OPENTHREAD_CUSTOM_PARAMETERS Kconfig
option don't seem to take effect.

Steps to reproduce:

1. Set a custom parameter
   CONFIG_OPENTHREAD_CUSTOM_PARAMETERS="OPENTHREAD_CONFIG_MLE_CHILD_TIMEOUT_DEFAULT=610"
2. Check the value with otThreadGetChildTimeout(). The default
   value of 240 is returned.

I'd expect the custom parameters to be applied.

This makes changing some of the OpenThread configuration hard or even impossible.

• OS: Linux
• zephyr-sdk-0.12.4
• zephyr-v2.6.0 (fe7c2ef)

This affects the https://github.com/zephyrproject-rtos/openthread repo.

[rlubos]

@neye-zhaw Indeed, OpenThread build system integration, which combines Zephyr and OpenThread build systems, used some obsolete variables from OpenThread build system that were removed at some point. I've submitted a fix in #37532, please have a look.

[neye-zhaw]

Thanks, the fix works.