anchor.diff:  { stdenv, lib, fetchurl, fetchFromGitHub, fixDarwinDylibNames
   , autoconf, boost, brotli, cmake, flatbuffers, gflags, glog, gtest, lz4
  -, perl, python3, rapidjson, re2, snappy, thrift, utf8proc, which, xsimd
  +, perl, python3, rapidjson, re2, snappy, thrift, tzdata , utf8proc, which
   , zlib, zstd
   , enableShared ? !stdenv.hostPlatform.isStatic
   }:
  
positive.code:     "-DCMAKE_INSTALL_RPATH=@loader_path/../lib" # needed for tools executables
    ] ++ lib.optional (!stdenv.isx86_64) "-DARROW_USE_SIMD=OFF";
  
    ARROW_XSIMD_URL = xsimd.src;
  
    doInstallCheck = true;
    ARROW_TEST_DATA =
  
negative.code: 
    preConfigure = ''
      patchShebangs build-support/
      substituteInPlace "src/arrow/vendored/datetime/tz.cpp" \
        --replace "/usr/share/zoneinfo" "${tzdata}/share/zoneinfo"
    '';
  
    cmakeFlags = [
  