before the transition to new download site (https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/downloads-1) the old download site give us the possibility to download all the subsystems sources and the building scripts to recompile arm-none-eabi-gcc/gdb with different options or more up to date subsystems. There was bash script build-common.sh, build-prerequisites.sh, build-toolchain.sh to rebuild the entire toolchain, and the last one that I can find was here : developer.arm.com/.../gcc-arm-none-eabi-10.3-2021.10-src.tar.bz2
Now, with the new download organization, I am not able to find the updated build scripts for the newly published arm-nine-eabi-gcc 11.2. Are they still available to download elsewhere ?
Thanks for any help,
Yes, finally found the instructions to build from source, you have to open this file : https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/downloads-1#At the bottom, there is the instructions to download and build from source, you just need to download the right manifest file which is arm-none-eabi one in my case, but all the flavors are available.
If like me you have non EN locale, it's better to unset them, and you also have to just keep /usr/bin:/bin:/usr/sbin:/sbin in your PATH, then launch the build and cross fingers :-)