To compile the latest libbpf-bootstrap project, you must use the latest version of clang

summer · Posted on 2025-10-24 09:55:34

github clone libbpf-bootstrap directory
There is no makefile
There is cmakelist.txt
mkdir build
cd build
cmake ..
make
Upgrade Clang version (currently 10.0.0, older)

# Install Clang 12 (Ubuntu 20.04 can be installed directly)
sudo apt update && sudo apt install -y clang-12 llvm-12

# Switch the default Clang to version 12
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-12 100
sudo update-alternatives --install /usr/bin/llvm-strip llvm-strip /usr/bin/llvm-strip-12 100

# Validate the version
clang --version # should output 12.x.x

# Go back to the build directory to clean up the cache and compile the product
cd /home/sm/libbpf-bootstrap/examples/c/build
rm -rf * # Clean up old configurations and artifacts thoroughly

# Rerun the CMake configuration
cmake ..

# Recompile (prioritize compilation minimal_ns validation)
make minimal_ns

Compilation was successful

[Safety Tutorial] To compile the latest libbpf-bootstrap project, you must use the latest version of clang

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