<ins> { clangStdenv , lib , runCommandWith , writeShellScript , fetchFromGitHub , fetchpatch , freetype , libjpeg , libpng , libtiff , giflib , libX11 , libXext , libXrandr , libXcursor , libxkbfile , cairo , libglvnd , fontconfig , dbus , libGLU , fuse , ffmpeg , pulseaudio , makeWrapper , python2 , python3 , cmake , ninja , pkg-config , bison , flex , libbsd , openssl , xdg-user-dirs , addOpenGLRunpath # Whether to pre-compile Python 2 bytecode for performance. , compilePy2Bytecode ? false }: let stdenv = clangStdenv; # The build system invokes clang to compile Darwin executables. # In this case, our cc-wrapper must not be used. ccWrapperBypass = runCommandWith { inherit stdenv; name = "cc-wrapper-bypass"; runLocal = false; derivationArgs = { template = writeShellScript "template" '' for (( i=1; i<=$#; i++)); do j=$((i+1)) if [[ "''${!i}" == "-target" && "''${!j}" == *"darwin"* ]]; then # their flags must take precedence exec @unwrapped@ "$@" $NIX_CFLAGS_COMPILE fi done exec @wrapped@ "$@" ''; }; } '' unwrapped_bin=${stdenv.cc.cc}/bin wrapped_bin=${stdenv.cc}/bin mkdir -p $out/bin unwrapped=$unwrapped_bin/$CC wrapped=$wrapped_bin/$CC  substituteAll $template $out/bin/$CC unwrapped=$unwrapped_bin/$CXX wrapped=$wrapped_bin/$CXX  substituteAll $template $out/bin/$CXX chmod +x $out/bin/$CC $out/bin/$CXX ''; wrappedLibs = [ # To find all of them: rg -w wrap_elf # src/native/CMakeLists.txt freetype libjpeg libpng libtiff giflib libX11 libXext libXrandr libXcursor libxkbfile cairo libglvnd fontconfig dbus libGLU # src/external/darling-dmg/CMakeLists.txt fuse # src/CoreAudio/CMakeLists.txt ffmpeg pulseaudio ]; in stdenv.mkDerivation { pname = "darling"; version = "unstable-2023-05-02"; src = fetchFromGitHub { owner = "darlinghq"; repo = "darling"; rev = "557e7e9dece394a3f623825679474457e5b64fd0"; fetchSubmodules = true; hash = "sha256-SOoLaV7wg33qRHPQXkdMvrY++CvoG85kwd6IU6DkYa0="; }; outputs = [ "out" "sdk" ]; postPatch = '' # We have to be careful - Patching everything indiscriminately # would affect Darwin scripts as well chmod +x src/external/bootstrap_cmds/migcom.tproj/mig.sh patchShebangs  src/external/bootstrap_cmds/migcom.tproj/mig.sh  src/external/darlingserver/scripts  src/external/openssl_certificates/scripts substituteInPlace src/startup/CMakeLists.txt --replace SETUID "" substituteInPlace src/external/basic_cmds/CMakeLists.txt --replace SETGID "" ''; nativeBuildInputs = [ bison ccWrapperBypass cmake flex makeWrapper ninja pkg-config python3 ] ++ lib.optional compilePy2Bytecode python2; buildInputs = wrappedLibs ++ [ libbsd openssl stdenv.cc.libc.linuxHeaders ]; # Breaks valid paths like # Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include dontFixCmake = true; # src/external/objc4 forces OBJC_IS_DEBUG_BUILD=1, which conflicts with NDEBUG # TODO: Fix in a better way cmakeBuildType = " "; cmakeFlags = [ "-DTARGET_i386=OFF" "-DCOMPILE_PY2_BYTECODE=${if compilePy2Bytecode then "ON" else "OFF"}" "-DDARLINGSERVER_XDG_USER_DIR_CMD=${xdg-user-dirs}/bin/xdg-user-dir" ]; env.NIX_CFLAGS_COMPILE = "-Wno-macro-redefined -Wno-unused-command-line-argument"; # Linux .so's are dlopen'd by wrapgen during the build env.LD_LIBRARY_PATH = lib.makeLibraryPath wrappedLibs; # Breaks shebangs of Darwin scripts dontPatchShebangs = true; postInstall = '' # Install the SDK as a separate output mkdir -p $sdk sdkDir=$(readlink -f ../Developer) while read -r path; do dst="$sdk/Developer/''${path#$sdkDir}" if [[ -L "$path" ]]; then target=$(readlink -m "$path") if [[ -e "$target" && "$target" == "$NIX_BUILD_TOP"* && "$target" != "$sdkDir"* ]]; then # dereference cp -r -L "$path" "$dst" elif [[ -e "$target" ]]; then # preserve symlink cp -d "$path" "$dst" else # ignore symlink >&2 echo "Ignoring symlink $path -> $target" fi elif [[ -f $path ]]; then cp "$path" "$dst" elif [[ -d $path ]]; then mkdir -p "$dst" fi done < <(find $sdkDir) mkdir -p $sdk/bin cp src/external/cctools-port/cctools/ld64/src/*-ld $sdk/bin cp src/external/cctools-port/cctools/ar/*-{ar,ranlib} $sdk/bin ''; postFixup = '' echo "Checking for references to $NIX_STORE in Darling root..." set +e grep -r --exclude=mldr "$NIX_STORE" $out/libexec/darling ret=$? set -e if [[ $ret == 0 ]]; then echo "Found references to $NIX_STORE in Darling root (see above)" exit 1 fi patchelf --add-rpath "${lib.makeLibraryPath wrappedLibs}:${addOpenGLRunpath.driverLink}/lib"  $out/libexec/darling/usr/libexec/darling/mldr ''; meta = with lib; { description = "Open-source Darwin/macOS emulation layer for Linux"; homepage = "https://www.darlinghq.org"; license = licenses.gpl3Plus; maintainers = with maintainers; [ zhaofengli ]; platforms = [ "x86_64-linux" ]; }; } </ins>