set gcc-arm-none-eabi build enable gcc-plugin usage and developing

Hi,

I wish to build GCC using gcc-arm-none-eabi-10-2020-q4-major tool chain and configure a gcc-plugin support. By default, gcc-plugin develop disabled building using gcc-arm-none-eabi-10-2020-q4-major. I have several questions:

1. How can I enable-plugin in tool chain build/install script?

2. After tool chain build, is it will be usable to compile plugins and enable too using windows (and not just Linux)?

Sincerely,

Yonatan