anchor.diff:      export DEVICE_LIB_PATH=${rocm-device-libs}/lib
     '';
   
  -  # The patch version is the last two digits of year + week number +
  -  # day in the week: date -d "2021-07-25" +%y%U%w
  -  workweek = "21300";
  -
     cmakeFlags = [
  -    "-DHSA_PATH=${rocm-runtime}"
  -    "-DHIP_COMPILER=clang"
       "-DHIP_PLATFORM=amd"
  -    "-DHIP_VERSION_GITDATE=${workweek}"
  -    "-DCMAKE_C_COMPILER=${clang}/bin/clang"
  -    "-DCMAKE_CXX_COMPILER=${clang}/bin/clang++"
  -    "-DLLVM_ENABLE_RTTI=ON"
  -    "-DLIBROCclr_STATIC_DIR=${rocclr}/lib/cmake"
  -    "-DROCclr_DIR=${rocclr}"
  -    "-DHIP_CLANG_ROOT=${clang-unwrapped}"
  +    "-DAMD_OPENCL_PATH=${rocm-opencl-runtime.src}"
  +    "-DHIP_COMMON_DIR=${hip}"
  +    "-DROCCLR_PATH=${rocclr}"
     ];
   
  -  patches = [
  -    (fetchpatch {
  -      name = "no-git-during-build";
  -      url = "https://github.com/acowley/HIP/commit/310b7e972cfb23216250c0240ba6134741679aee.patch";
  -      sha256 = "08ky7v1yvajabn9m5x3afzrnz38gnrgc7vgqlbyr7s801c383ha1";
  -    })
  -    (fetchpatch {
  -      name = "use-PATH-when-compiling-pch";
  -      url = "https://github.com/acowley/HIP/commit/bfb4dd1eafa9714a2c05a98229cc35ffa3429b37.patch";
  -      sha256 = "1wp0m32df7pf4rhx3k5n750fd7kz10zr60z0wllb0mw6h00w6xpz";
  -    })
  -  ];
  -
  -  # - fix bash paths
  -  # - fix path to rocm_agent_enumerator
  -  # - fix hcc path
  -  # - fix hcc version parsing
  -  # - add linker flags for libhsa-runtime64 and hc_am since libhip_hcc
  -  #   refers to them.
  -  prePatch = ''
  -    for f in $(find bin -type f); do
  -      sed -e 's,#!/usr/bin/perl,#!${perl}/bin/perl,' \
  -          -e 's,#!/bin/bash,#!${stdenv.shell},' \
  -          -i "$f"
  -    done
  -
  -    for f in $(find . -regex '.*\.cpp\|.*\.h\(pp\)?'); do
  -      if grep -q __hcc_workweek__ "$f" ; then
  -        substituteInPlace "$f" --replace '__hcc_workweek__' '${workweek}'
  -      fi
  -    done
  -
  -    sed 's,#!/usr/bin/python,#!${python}/bin/python,' -i hip_prof_gen.py
  -
  -    sed -e 's,$ROCM_AGENT_ENUM = "''${ROCM_PATH}/bin/rocm_agent_enumerator";,$ROCM_AGENT_ENUM = "${rocminfo}/bin/rocm_agent_enumerator";,' \
  -        -e "s,^\($HIP_LIB_PATH=\).*$,\1\"$out/lib\";," \
  -        -e 's,^\($HIP_CLANG_PATH=\).*$,\1"${clang}/bin";,' \
  -        -e 's,^\($DEVICE_LIB_PATH=\).*$,\1"${rocm-device-libs}/amdgcn/bitcode";,' \
  -        -e 's,^\($HIP_COMPILER=\).*$,\1"clang";,' \
  -        -e 's,^\($HIP_RUNTIME=\).*$,\1"ROCclr";,' \
  -        -e 's,^\([[:space:]]*$HSA_PATH=\).*$,\1"${rocm-runtime}";,'g \
  -        -e 's,\([[:space:]]*$HOST_OSNAME=\).*,\1"nixos";,' \
  -        -e 's,\([[:space:]]*$HOST_OSVER=\).*,\1"${lib.versions.majorMinor lib.version}";,' \
  -        -e 's,^\([[:space:]]*\)$HIP_CLANG_INCLUDE_PATH = abs_path("$HIP_CLANG_PATH/../lib/clang/$HIP_CLANG_VERSION/include");,\1$HIP_CLANG_INCLUDE_PATH = "${clang-unwrapped}/lib/clang/$HIP_CLANG_VERSION/include";,' \
  -        -e 's,^\([[:space:]]*$HIPCXXFLAGS .= " -isystem $HIP_CLANG_INCLUDE_PATH\)";,\1 -isystem ${rocm-runtime}/include";,' \
  -        -e 's,\($HIPCXXFLAGS .= " -isystem \\"$HIP_INCLUDE_PATH\\"\)" ;,\1 --rocm-path=${rocclr}";,' \
  -        -e "s,\$HIP_PATH/\(bin\|lib\),$out/\1,g" \
  -        -e "s,^\$HIP_LIB_PATH=\$ENV{'HIP_LIB_PATH'};,\$HIP_LIB_PATH=\"$out/lib\";," \
  -        -e 's,`file,`${file}/bin/file,g' \
  -        -e 's,`readelf,`${binutils-unwrapped}/bin/readelf,' \
  -        -e 's, ar , ${binutils-unwrapped}/bin/ar ,g' \
  -        -i bin/hipcc
  -
  -    sed -e 's,^\($HSA_PATH=\).*$,\1"${rocm-runtime}";,' \
  -        -e 's,^\($HIP_CLANG_PATH=\).*$,\1"${clang}/bin";,' \
  -        -e 's,^\($HIP_PLATFORM=\).*$,\1"amd";,' \
  -        -e 's,$HIP_CLANG_PATH/llc,${llvm}/bin/llc,' \
  -        -e 's, abs_path, Cwd::abs_path,' \
  -        -i bin/hipconfig
  -
  -    sed -e 's, abs_path, Cwd::abs_path,' -i bin/hipvars.pm
  -
  -    sed -e 's|_IMPORT_PREFIX}/../include|_IMPORT_PREFIX}/include|g' \
  -        -e 's|''${HIP_CLANG_ROOT}/lib/clang/\*/include|${clang-unwrapped}/lib/clang/*/include|' \
  -        -i hip-config.cmake.in
  -  '';
  -
  -  preInstall = ''
  -    mkdir -p $out/lib/cmake
  -  '';
  -
  -  # The upstream ROCclr setup wants everything built into the same
  -  # ROCclr output directory. We copy things into the HIP output
  -  # directory, since it is downstream of ROCclr in terms of dependency
  -  # direction. Thus we have device-libs and rocclr pieces in the HIP
  -  # output directory.
     postInstall = ''
  -    mkdir -p $out/share
  -    mv $out/lib/cmake $out/share/
  -    mv $out/cmake/* $out/share/cmake/hip
  -    mkdir -p $out/lib
  -    ln -s ${rocm-device-libs}/lib $out/lib/bitcode
  -    mkdir -p $out/include
  -    ln -s ${clang-unwrapped}/lib/clang/11.0.0/include $out/include/clang
  -    ln -s ${rocclr}/lib/*.* $out/lib
  -    ln -s ${rocclr}/include/* $out/include
  -    wrapProgram $out/bin/hipcc --set HIP_PATH $out --set HSA_PATH ${rocm-runtime} --set HIP_CLANG_PATH ${clang}/bin --prefix PATH : ${lld}/bin --set NIX_CC_WRAPPER_TARGET_HOST_${stdenv.cc.suffixSalt} 1 --prefix NIX_LDFLAGS ' ' -L${compiler-rt}/lib --prefix NIX_LDFLAGS_FOR_TARGET ' ' -L${compiler-rt}/lib
  +    wrapProgram $out/bin/hipcc --set HIP_PATH $out --set HSA_PATH ${rocm-runtime} --set HIP_CLANG_PATH ${clang}/bin --prefix PATH : ${lld}/bin --set NIX_CC_WRAPPER_TARGET_HOST_${stdenv.cc.suffixSalt} 1 --prefix NIX_LDFLAGS ' ' -L${compiler-rt}/lib --prefix NIX_LDFLAGS_FOR_TARGET ' ' -L${compiler-rt}/lib --add-flags "-nogpuinc"
       wrapProgram $out/bin/hipconfig --set HIP_PATH $out --set HSA_PATH ${rocm-runtime} --set HIP_CLANG_PATH ${clang}/bin
     '';
   
     passthru.updateScript = writeScript "update.sh" ''
       #!/usr/bin/env nix-shell
       #!nix-shell -i bash -p curl jq common-updater-scripts
  -    version="$(curl -sL "https://api.github.com/repos/ROCm-Developer-Tools/HIP/tags" | jq '.[].name | split("-") | .[1] | select( . != null )' --raw-output | sort -n | tail -1)"
  +    version="$(curl -sL "https://api.github.com/repos/ROCm-Developer-Tools/hipamd/tags" | jq '.[].name | split("-") | .[1] | select( . != null )' --raw-output | sort -n | tail -1)"
       update-source-version hip "$version"
     '';
   
     meta = with lib; {
       description = "C++ Heterogeneous-Compute Interface for Portability";
  -    homepage = "https://github.com/ROCm-Developer-Tools/HIP";
  +    homepage = "https://github.com/ROCm-Developer-Tools/hipamd";
       license = licenses.mit;
       maintainers = with maintainers; [ lovesegfault ];
       platforms = platforms.linux;
  
positive.code: , fetchpatch
  , file
  , lib
  , lld
  , llvm
  , makeWrapper
  , perl
  , python
  , rocclr
  
negative.code: , writeText
  }:
  
  let
    hip = stdenv.mkDerivation rec {
      pname = "hip";
      version = "4.5.2";
  
      src = fetchFromGitHub {
        owner = "ROCm-Developer-Tools";
        repo = "HIP";
        rev = "rocm-${version}";
        sha256 = "sha256-AuA5ubRPywXaBBrjdHg5AT8rrVKULKog6Lh8jPaUcXY=";
      };
  
      # - fix bash paths
      # - fix path to rocm_agent_enumerator
      # - fix hcc path
      # - fix hcc version parsing
      # - add linker flags for libhsa-runtime64 and hc_am since libhip_hcc
      #   refers to them.
      prePatch = ''
        for f in $(find bin -type f); do
          sed -e 's,#!/usr/bin/perl,#!${perl}/bin/perl,' \
              -e 's,#!/bin/bash,#!${stdenv.shell},' \
              -i "$f"
        done
  
        substituteInPlace bin/hip_embed_pch.sh \
          --replace '$LLVM_DIR/bin/' ""
  
        sed 's,#!/usr/bin/python,#!${python}/bin/python,' -i hip_prof_gen.py
  
        sed -e 's,$ROCM_AGENT_ENUM = "''${ROCM_PATH}/bin/rocm_agent_enumerator";,$ROCM_AGENT_ENUM = "${rocminfo}/bin/rocm_agent_enumerator";,' \
            -e 's,^\($DEVICE_LIB_PATH=\).*$,\1"${rocm-device-libs}/amdgcn/bitcode";,' \
            -e 's,^\($HIP_COMPILER=\).*$,\1"clang";,' \
            -e 's,^\($HIP_RUNTIME=\).*$,\1"ROCclr";,' \
            -e 's,^\([[:space:]]*$HSA_PATH=\).*$,\1"${rocm-runtime}";,'g \
            -e 's,^\([[:space:]]*\)$HIP_CLANG_INCLUDE_PATH = abs_path("$HIP_CLANG_PATH/../lib/clang/$HIP_CLANG_VERSION/include");,\1$HIP_CLANG_INCLUDE_PATH = "${clang-unwrapped}/lib/clang/$HIP_CLANG_VERSION/include";,' \
            -e 's,^\([[:space:]]*$HIPCXXFLAGS .= " -isystem \\"$HIP_CLANG_INCLUDE_PATH/..\\"\)";,\1 -isystem ${rocm-runtime}/include";,' \
            -e 's,`file,`${file}/bin/file,g' \
            -e 's,`readelf,`${binutils-unwrapped}/bin/readelf,' \
            -e 's, ar , ${binutils-unwrapped}/bin/ar ,g' \
            -i bin/hipcc
  
        sed -e 's,^\($HSA_PATH=\).*$,\1"${rocm-runtime}";,' \
            -e 's,^\($HIP_CLANG_PATH=\).*$,\1"${clang}/bin";,' \
            -e 's,^\($HIP_PLATFORM=\).*$,\1"amd";,' \
            -e 's,$HIP_CLANG_PATH/llc,${llvm}/bin/llc,' \
            -e 's, abs_path, Cwd::abs_path,' \
            -i bin/hipconfig
  
        sed -e 's, abs_path, Cwd::abs_path,' -i bin/hipvars.pm
      '';
  
      buildPhase = "";
  
      installPhase = ''
        runHook preInstall
  
        mkdir -p $out
        cp -r * $out/
  
        runHook postInstall
      '';
  
      meta = with lib; {
        description = "C++ Heterogeneous-Compute Interface for Portability";
        homepage = "https://github.com/ROCm-Developer-Tools/HIP";
        license = licenses.mit;
        maintainers = with maintainers; [ lovesegfault ];
        platforms = platforms.linux;
      };
    };
  in
  stdenv.mkDerivation rec {
    pname = "hip";
    version = "4.5.2";
  
    src = fetchFromGitHub {
      owner = "ROCm-Developer-Tools";
      repo = "hipamd";
      rev = "rocm-${version}";
      sha256 = "WvOuQu/EN81Kwcoc3ZtGlhb996edQJ3OWFsmPuqeNXE=";
    };
  
    nativeBuildInputs = [ cmake python makeWrapper perl ];
    buildInputs = [ libxml2 numactl libglvnd libX11 ];
    propagatedBuildInputs = [
      clang
      compiler-rt
      lld
      llvm
      rocm-comgr
      rocm-device-libs
      rocm-runtime
  