❯ python3.12 -m pip install .
Processing /Users/somebody/src/atheris
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: atheris
Building wheel for atheris (pyproject.toml) ... error
error: subprocess-exited-with-error

× Building wheel for atheris (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [43 lines of output]
running bdist_wheel
running build
running build_py
copying atheris_no_libfuzzer.py -> build/lib.macosx-10.9-universal2-cpython-312
copying src/custom_crossover_fuzz_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/regex_match_generation_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/fuzz_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/function_hooks.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/fuzz_test_lib.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/coverage_test_helper.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/custom_mutator_and_crossover_fuzz_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/coverage_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/init.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/version_dependent.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/utils.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/instrument_bytecode.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/import_hook.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/fuzzed_data_provider_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/custom_mutator_fuzz_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/pyinstaller_coverage_test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/hook-atheris.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
copying src/coverage_g3test.py -> build/lib.macosx-10.9-universal2-cpython-312/atheris
running build_ext
Your libFuzzer is up-to-date.
clang -fno-strict-overflow -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -O3 -Wall -arch arm64 -arch x86_64 -g -I/Users/somebody/src/codegene.com/.venv/include -I/Library/Frameworks/Python.framework/Versions/3.12/include/python3.12 -c /var/folders/_y/99154p1d23l6160p63_yq98h0000gn/T/tmpffongksq.cpp -o var/folders/_y/99154p1d23l6160p63_yq98h0000gn/T/tmpffongksq.o -std=c++14
building 'atheris.native' extension
clang -fno-strict-overflow -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -O3 -Wall -arch arm64 -arch x86_64 -g -DVERSION_INFO='2.3.0' -DATHERIS_MODULE_NAME=native -I/private/var/folders/_y/99154p1d23l6160p63_yq98h0000gn/T/pip-build-env-p5du0366/normal/lib/python3.12/site-packages/pybind11/include -I/Users/somebody/src/codegene.com/.venv/include -I/Library/Frameworks/Python.framework/Versions/3.12/include/python3.12 -c src/native/atheris.cc -o build/temp.macosx-10.9-universal2-cpython-312/src/native/atheris.o -DPYBIND11_DETAILED_ERROR_MESSAGES=1 -Wno-attributes -Wno-address -Wno-deprecated-declarations -stdlib=libc++ -mmacosx-version-min=10.7 -std=c++14
clang -fno-strict-overflow -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -O3 -Wall -arch arm64 -arch x86_64 -g -DVERSION_INFO='2.3.0' -DATHERIS_MODULE_NAME=native -I/private/var/folders/_y/99154p1d23l6160p63_yq98h0000gn/T/pip-build-env-p5du0366/normal/lib/python3.12/site-packages/pybind11/include -I/Users/somebody/src/codegene.com/.venv/include -I/Library/Frameworks/Python.framework/Versions/3.12/include/python3.12 -c src/native/codetable_gen.cc -o build/temp.macosx-10.9-universal2-cpython-312/src/native/codetable_gen.o -DPYBIND11_DETAILED_ERROR_MESSAGES=1 -Wno-attributes -Wno-address -Wno-deprecated-declarations -stdlib=libc++ -mmacosx-version-min=10.7 -std=c++14
src/native/codetable_gen.cc:45:3: warning: array index 262 is past the end of the array (that has type 'uint8_t[256]' (aka 'unsigned char[256]')) [-Warray-bounds]
45 | opcode_caches[LOAD_METHOD] = 10;
| ^ ~~~~~~~~~~~
src/native/codetable_gen.cc:34:1: note: array 'opcode_caches' declared here
34 | uint8_t opcode_caches[256];
| ^
src/native/codetable_gen.cc:46:17: error: use of undeclared identifier 'PRECALL'; did you mean 'P_ALL'?
46 | opcode_caches[PRECALL] = 1;
| ^~~~~~~
| P_ALL
/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/sys/wait.h:80:2: note: 'P_ALL' declared here
80 | P_ALL,
| ^
1 warning and 1 error generated.
error: command '/opt/homebrew/opt/llvm/bin/clang' failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for atheris
Failed to build atheris
ERROR: Could not build wheels for atheris, which is required to install pyproject.toml-based projects

❯ which clang
/opt/homebrew/opt/llvm/bin/clang

❯ clang --version
Homebrew clang version 17.0.6
Target: arm64-apple-darwin23.2.0
Thread model: posix
InstalledDir: /opt/homebrew/opt/llvm/bin