I wanted to set up a rather niche SDK which involved building and configuring it use a native gcc toolchain, which slightly differs depending on the gcc version

I wanted to set up a rather niche SDK which involved building and configuring it use a native gcc toolchain, which slightly differs depending on the gcc version you have. Well unfortunately, they cant be bothered to update their docs, which only have instructions for gcc 4.x and 5. I have gcc 8 and 9 on my system and couldn't manage to figure out how to configure it and their irc support channel is basically dead. They do have a mailing list, but I hate mailing lists. Of course the 1st version of this SDK was windows only, and the legacy of that ksbpainfully visible. The default config has the toolchain specified as VS2015, iirc.