{ stdenv, buildEnv, lib, fetchFromGitHub, autoreconfHook269, openocd }:
let
  bscan_spi_bitstreams-pkg = stdenv.mkDerivation {
    name = "bscan_spi_bitstreams";
    src = fetchFromGitHub {
      owner = "quartiq";
      repo = "bscan_spi_bitstreams";
      rev = "01d8f819f15baf9a8cc5d96945a51e4d267ff564";
      sha256 = "1zqv47kzgvbn4c8cr019a6wcja7gn5h1z4kvw5bhpc72fyhagal9";
    };
    phases = ["installPhase"];
    installPhase =
    ''
    mkdir -p $out/share/bscan-spi-bitstreams
    cp $src/*.bit $out/share/bscan-spi-bitstreams
    '';
  };
  openocd-fixed = openocd.overrideAttrs(oa: {
    version = "unstable-2021-09-15";
    src = fetchFromGitHub {
      owner = "openocd-org";
      repo = "openocd";
      rev = "a0bd3c9924870c3b8f428648410181040dabc33c";
      sha256 = "sha256-YgUsl4/FohfsOncM4uiz/3c6g2ZN4oZ0y5vV/2Skwqg=";
      fetchSubmodules = true;
    };
    # https://review.openocd.org/c/openocd/+/4876
    patches = oa.patches or [] ++ [ ./openocd-jtagspi.diff ];
    nativeBuildInputs = oa.nativeBuildInputs or [] ++ [ autoreconfHook269 ];
  });
in
  buildEnv {
    name = "openocd-bscanspi";
    paths = [ openocd-fixed bscan_spi_bitstreams-pkg ];
  }