[Backport release-25.11] open-watcom-v2-unwrapped: 0-unstable-2025-05-07 ->...

  lib,

  fetchFromGitHub,

  unstableGitUpdater,

  dosbox,

  # Docs cause an immense increase in build time, up to 2 additional hours

  withDocs ? false,

  dosbox,

  mesa,

  ghostscript,

  withGUI ? false,

  # GUI tools aren't ported to non-MS platforms, building them usually just wastes time

  withGUI ? stdenv.hostPlatform.isWindows,

}:

stdenv.mkDerivation rec {

  pname = "${passthru.prettyName}-unwrapped";

stdenv.mkDerivation (finalAttrs: {

  pname = "${finalAttrs.passthru.prettyName}-unwrapped";

  # nixpkgs-update: no auto update

  version = "0-unstable-2025-05-07";

  version = "0-unstable-2025-11-15";

  src = fetchFromGitHub {

    owner = "open-watcom";

    repo = "open-watcom-v2";

    rev = "b168de07a7c32ad82b77dd56671b6a51a11dab70";

    hash = "sha256-9NNJcDHxOo+NKZraGqsHqK5whO3nL0QTeh+imzhThTg=";

    rev = "fe2ddbd2e5833a85d9ccd3937b304f3f41e44f98";

    hash = "sha256-jv7d5DopGZDnVFQX/t0D9cZSTwgMvcb4kqCnLJSWmNI=";

  };

  postPatch = ''

    patchShebangs *.sh

    for dateSource in bld/wipfc/configure; do

      substituteInPlace $dateSource \

  ''

  # Patch references to current time & date into SOURCE_DATE_EPOCH-respecting ones

  + ''

    substituteInPlace bld/wipfc/configure \

      --replace-fail '`date ' '`date -ud "@$SOURCE_DATE_EPOCH" '

    done

    substituteInPlace bld/watcom/h/banner.h \

      --replace-fail '__DATE__' "\"$(date -ud "@$SOURCE_DATE_EPOCH" +'%b %d %Y')\"" \

    substituteInPlace build/makeinit \

      --replace-fail '$+$(%__CYEAR__)$-' "$(date -ud "@$SOURCE_DATE_EPOCH" +'%Y')"

  ''

  # (SDL? DOSBox?) needs OpenGL now, and that doesn't seem to play nicely anymore with the dummy driver

  + ''

    substituteInPlace build/mif/wgmlcmd.mif \

      --replace-fail 'SDL_VIDEODRIVER=dummy' 'SDL_VIDEODRIVER=offscreen'

  ''

  + lib.optionalString (!stdenv.hostPlatform.isDarwin) ''

    substituteInPlace build/mif/local.mif \

      --replace-fail '-static' ""

  '';

  nativeBuildInputs = [

    dosbox

  ]

  ++ lib.optionals withDocs [

  nativeBuildInputs = lib.optionals withDocs [

    dosbox # running prebuilt WGML tool to create docs

    ghostscript

    mesa.llvmpipeHook # DOSBox doesn't seem to launch without OpenGL available, even on SDL dummy platform

  ];

  configurePhase = ''

    runHook preConfigure

    export OWROOT=$(realpath $PWD)

    export OWTOOLS=${if stdenv.cc.isClang then "CLANG" else "GCC"}

    export OWTOOLS=${

      if stdenv.cc.isClang then

        "CLANG"

      else if stdenv.cc.isGNU then

        "GCC"

      else

        throw "Don't know what compiler ID to use for ${stdenv.cc.name} in open-watcom-v2 build"

    }

    export OWDOCBUILD=${if withDocs then "1" else "0"}

    export OWGHOSTSCRIPTPATH=${lib.optionalString withDocs "${ghostscript}/bin"}

    export OWGHOSTSCRIPTPATH=${lib.optionalString withDocs "${lib.makeBinPath [ ghostscript ]}"}

    export OWGUINOBUILD=${if withGUI then "0" else "1"}

    export OWNOBUILD=

    export OWDISTRBUILD=0

    export OWDOSBOX=${dosbox}/bin/dosbox

    export OWDOSBOX=${lib.getExe dosbox}

    export OWVERBOSE=0

    export OWRELROOT=$out

    };

  };

  meta = with lib; {

  meta = {

    description = "V2 fork of the Open Watcom suite of compilers and tools";

    longDescription = ''

      A fork of Open Watcom: A C/C++/Fortran compiler and assembler suite

      https://github.com/open-watcom/open-watcom-v2/wiki/Open-Watcom-Documentation

    '';

    homepage = "https://open-watcom.github.io";

    license = licenses.watcom;

    platforms = with platforms; windows ++ unix;

    badPlatforms = platforms.riscv ++ [

    license = lib.licenses.watcom;

    platforms = with lib.platforms; windows ++ unix;

    badPlatforms = lib.platforms.riscv ++ [

      "powerpc64-linux"

      "powerpc64le-linux"

      "mips64el-linux"

    ];

    maintainers = with maintainers; [ OPNA2608 ];

    maintainers = with lib.maintainers; [ OPNA2608 ];

  };

}

})

                  echo "Test file format"

                  file ./linux

                  file ./linux | grep "32-bit" | grep -q "Linux"

                  file ./linux | grep "ELF 32-bit" | grep -q "Linux"

                  file ./nt.exe

                  file ./nt.exe | grep "PE32" | grep -q "Windows"

                  file ./nt.exe | grep "PE32 executable" | grep -q "Windows"

                  file ./dos4g.exe

                  file ./dos4g.exe | grep "MS-DOS" | grep -q "executable, LE"

                  file ./dos4g.exe | grep "MS-DOS executable" | grep -q "LE executable"

                  file ./windows.exe

                  file ./windows.exe | grep "MS-DOS" | grep -q "Windows 3.00"

                  file ./windows.exe | grep "MS-DOS executable" | grep -q "NE for MS Windows 3."

                  file ./dos.exe

                  file ./dos.exe | grep "MS-DOS" | grep -v "LE" | grep -qv "Windows 3."

                  file ./dos.exe | grep "MS-DOS executable" | grep -q "MZ for MS-DOS"

                  touch $out

                '';

          };

  opam-installer = callPackage ../development/tools/ocaml/opam/installer.nix { };

  wrapWatcom = callPackage ../development/compilers/open-watcom/wrapper.nix { };

  open-watcom-v2-unwrapped = callPackage ../development/compilers/open-watcom/v2.nix { };

  open-watcom-v2 = wrapWatcom open-watcom-v2-unwrapped { };

  open-watcom-v2-full-unwrapped = open-watcom-v2-unwrapped.override {

    withDocs = true;

    withGUI = true;

  };

  open-watcom-bin-unwrapped = callPackage ../development/compilers/open-watcom/bin.nix { };

  open-watcom-v2 = wrapWatcom open-watcom-v2-unwrapped { };

  open-watcom-v2-full = wrapWatcom open-watcom-v2-full-unwrapped { };

  open-watcom-bin = wrapWatcom open-watcom-bin-unwrapped { };

  rml = callPackage ../development/compilers/rml {