pyenv configure: error: C compiler cannot create executables

checking whether the C compiler works... no
configure: error: in `/var/folders/r0/j5y3_lj52_90q1df4n1clqwm0000gn/T/python-build.20210911111753.87690/Python-3.8.0':
configure: error: C compiler cannot create executables
See `config.log' for more details
make: *** No targets specified and no makefile found.  Stop.

BUILD FAILED (OS X 11.1 using python-build 20180424)

softwareupdate --all --install --force

sudo rm -rf /Library/Developer/CommandLineTools
sudo xcode-select --install

make: *** [Modules/_iomodule.o] Error 1
make: *** Waiting for unfinished jobs....
In file included from ./Modules/_io/iobase.c:14:
./Modules/_io/_iomodule.h:102:3: error: off_t does not match either size_t, long, or long long!
# error off_t does not match either size_t, long, or long long!
  ^
1 error generated.
make: *** [Modules/iobase.o] Error 1

brew reinstall zlib bzip2

export PATH="$HOME/.pyenv/bin:$PATH"
export PATH="/usr/local/bin:$PATH"

eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
export LDFLAGS="-L/usr/local/opt/zlib/lib -L/usr/local/opt/bzip2/lib"
export CPPFLAGS="-I/usr/local/opt/zlib/include -I/usr/local/opt/bzip2/include"

CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.6.0 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)

CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.8.0 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)