opentxl: init wrapper

    runHook postInstall

  '';

  passthru.tests.factorial = callPackage ./factorial-test.nix { opentxl = finalAttrs.finalPackage; };

  passthru.updateScript = nix-update-script { };

  passthru = {

    inherit osOption;

    tests.factorial = callPackage ./factorial-test.nix { opentxl = finalAttrs.finalPackage; };

    updateScript = nix-update-script { };

  };

  meta = {

    description = "Open-source compiler for the Txl language";

{

  lib,

  stdenv,

  makeWrapper,

  opentxl-unwrapped,

  targetPackages,

}:

let

  inherit (targetPackages.stdenv.cc) targetPrefix;

  crossCompiling = stdenv.hostPlatform != stdenv.targetPlatform;

  targetOpentxl = if !crossCompiling then opentxl-unwrapped else targetPackages.opentxl-unwrapped;

in

stdenv.mkDerivation (finalAttrs: {

  pname = "${targetPrefix}opentxl-wrapper";

  inherit (opentxl-unwrapped) version;

  preferLocalBuild = true;

  strictDeps = true;

  dontUnpack = true;

  dontConfigure = true;

  dontBuild = true;

  nativeBuildInputs = [ makeWrapper ];

  installPhase = ''

    runHook preInstall

    mkdir -p $out/bin

    # Wrap compiler

    makeWrapper ${opentxl-unwrapped}/bin/txlc \

      $out/bin/${targetPrefix}txlc \

      --set TXLLIB ${opentxl-unwrapped}/lib \

      --set BUILD_TXLLIB ${opentxl-unwrapped}/lib \

      --set TARGET_TXLLIB ${targetOpentxl}/lib \

      --set CC ${targetPackages.stdenv.cc}/bin/${targetPrefix}cc \

      --set OS ${opentxl-unwrapped.osOption stdenv.targetPlatform}

    ${

      # For convenience, if there is a target prefix, create a symlink named txlc

      lib.optionalString (targetPrefix != "") ''

        ln -s $out/bin/${targetPrefix}txlc $out/bin/txlc

      ''

    }

    # Wrap other scripts

    for name in txl2c txlp; do

      makeWrapper "${opentxl-unwrapped}/bin/$name" \

        "$out/bin/$name" \

        --set-default TXLLIB ${opentxl-unwrapped}/lib

    done

    # Link to binaries that don't need wrapping

    for name in txl txldb; do

      ln -s "${opentxl-unwrapped}/bin/$name" "$out/bin/$name"

    done

    runHook postInstall

  '';

  passthru = {

    unwrapped = opentxl-unwrapped;

    inherit (opentxl-unwrapped.passthru) tests;

  };

  meta = opentxl-unwrapped.meta // {

    platforms = lib.platforms.unix;

  };

})