{ preparePort, nixpkgs, upstream }:

let
  version = "11.2.2";
  upstreamMesaDir = "${upstream.src}/repos/libports/src/lib/mesa";
in
preparePort {
  name = "mesa-${version}";
  outputs = [ "source" "dev" ];

  depsBuildBuild = with nixpkgs.buildPackages; [ bison flex python ];

  src = nixpkgs.fetchurl {
    url = "https://mesa.freedesktop.org/archive/older-versions/11.x/${version}/mesa-${version}.tar.gz";
    sha256 = "e2453014cd2cc5337a5180cdeffe8cf24fffbb83e20a96888e2b01df868eaae6";
  };

  tarFlags = "--files-from ${upstreamMesaDir}/files.list";

  patches = "${upstreamMesaDir}/patches/*.patch";
  patchFlags = "-p4";

  installPhase =
    ''
      mkdir -p $pkgconfigdir

      pushd src/compiler/glsl
      bison  -o glsl_parser.cpp -p "_mesa_glsl_" \
        --defines=glsl_parser.h glsl_parser.yy

      flex -o glsl_lexer.cpp glsl_lexer.ll

      pushd glcpp
      bison  -o sglcpp-parse.c \
        -p "glcpp_parser_" --defines=glcpp-parse.h \
        glcpp-parse.y

      flex  -o glcpp-lex.c glcpp-lex.l
      popd
      popd

      pushd src/mesa/program
      bison -o program_parse.tab.c \
        -p "_mesa_program_" --defines=program_parse.tab.h \
        program_parse.y

      flex -o lex.yy.c program_lexer.l
      popd

      mkdir -p src/mapi/shared-glapi
      pushd src/mapi/shared-glapi
      python ../mapi_abi.py --mode lib --printer shared-glapi \
        ../glapi/gen/gl_and_es_API.xml > glapi_mapi_tmp.h
      popd

      mv include $includedir

      substituteAll ${./mesa.pc.in} $pkgconfigdir/mesa.pc

      mkdir $source
      mv * $source/
    '';
}