[issue37140] ctypes change made clang fail to build

[serge-sans-paille]

serge-sans-paille <serge.guelton at telecom-bretagne.eu> added the comment:

@vstinner: to reproduce the issue

```
git clone https://github.com/llvm/llvm-project.git
cd llvm-project
mkdir _build
cd _build
cmake3 ../llvm -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra" -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/install -DPYTHON_EXECUTABLE=$HOME/sources/cpython/_build/install/bin/python3
make -j4
```

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37140>
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