Why does GCC under Rosetta 2 not compile properly Python

I have installed an Item and pyenv according this :https://medium.com/thinknum/how-to-install-python-under-rosetta-2-f98c0865e012In addition I have installed gcc-11 under the rosetta terminal

But when compile Python 3.7 with CC=/usr/local/bin/gcc-11 pyenv86 install -v 3.7.0 I get compile errors I can't interpret I am not a C guy. Can anybody help me out and tell me what is wrong. And how I can compile python under rosetta 2. The log You find under kargers.org/help/p.log (its too long for this). I think the compiler mixes up things from brew(arm) and things from brew86 which are stored in different locations but how can I avoid this.