How to replace gcc tool chain?

[Why Hans]

I want to use some C++17 new features. But current STM32CubeIDE with gcc version 7-2018-q2-update only support g++14.

If I replace gcc tool chain with the latest version, could I get what I want?

If yes, how to replace it?

If no, is there any way?

Thanks.

[berendi]

See two possible approaches here

https://community.st.com/s/question/0D50X0000CBkla8SQB/custom-toolchain-for-stm32cubeide