python 3 compilation with clang-18 and full optimization on ubuntu22.04

python3_compilation_clang18.sh

#!/usr/bin/bash
set -e
# llvm-profdata is required for a --enable-optimizations build but could not be found.
export PATH="$PATH:/usr/lib/llvm-18/bin/"
export CC="clang"
export CXX="clang++"
export LD="lld"
export LLVM=1
sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get install -y build-essential gdb lcov pkg-config \
	libbz2-dev libffi-dev libgdbm-dev libgdbm-compat-dev liblzma-dev \
	libncurses5-dev libncursesw5-dev libreadline6-dev libreadline-dev libsqlite3-dev libssl-dev \
	lzma lzma-dev xz-utils tk-dev uuid-dev zlib1g-dev libnss3-dev libjansson-dev

PYVERSION=$1
wget -O - "https://www.python.org/ftp/python/$PYVERSION/Python-$PYVERSION.tar.xz" | tar -C /tmp/ -xJ
cd /tmp/Python*

./configure LDFLAGS='-fuse-linker-plugin -fuse-ld=lld' --enable-optimizations
make autoconf
make -j$(nproc)
sudo make install