nanopb: fix build by resolving name collision (#337119)

{ stdenv

, cmake

, python3

, writeTextFile

, protobuf

, src

, version

{

  stdenv,

  cmake,

  python3,

  writeTextFile,

  protobuf,

  src,

  version,

}:

let

  pyproject_toml = writeTextFile {

    name = "pyproject.toml";

  pname = "nanopb-generator-out";

  inherit src version;

  nativeBuildInputs = [ cmake protobuf python3 ];

  nativeBuildInputs = [

    cmake

    protobuf

  ];

  # don't let `find_program` find the bundled `protoc` script, so it will use the system `protoc` instead

  preConfigure = ''

    rm generator/protoc

  '';

  cmakeFlags = [

    "-Dnanopb_BUILD_RUNTIME=OFF"

    "-Dnanopb_BUILD_GENERATOR=ON"

    "-Dnanopb_PYTHON_INSTDIR_OVERRIDE=$out/lib/python/site-packages"

    "-Dnanopb_PYTHON_INSTDIR_OVERRIDE=${placeholder "out"}/${python3.sitePackages}"

  ];

  preConfigure = ''

    cmakeFlags+=" -Dnanopb_PYTHON_INSTDIR_OVERRIDE=$out/lib/python/site-packages"

  '';

  postInstall = ''

    rm -rf $out/include

    rm -rf $out/lib/cmake

    ln -s $out/lib/python/site-packages $out/src

    ln -s $out/${python3.sitePackages} $out/src

    ln -s ${pyproject_toml} $out/pyproject.toml

  '';

}