wine: Inline supportFlags in base.nix

I would like to get rid of `default.nix` entirely, but doing so involves
some back-compat issues. This seems like it might be the last change I
can make before those back-compat issues become unavoidable?

pkgs/applications/emulators/wine/base.nix

@@ -17,13 +17,13 @@
   makeWrapper,
   pkg-config,
   nixosTests,
-  supportFlags,
   pnameSuffix ? "",
   patches,
   moltenvk,
   buildScript ? null,
   configureFlags ? [ ],
   mainProgram ? "wine",
+
   # Staging support
   useStaging ? false,
   autoconf,
@@ -31,6 +31,39 @@
   perl,
   python3,
   gitMinimal,
+
+  # Support flags
+  gettextSupport ? false,
+  fontconfigSupport ? false,
+  alsaSupport ? false,
+  gtkSupport ? false,
+  openglSupport ? false,
+  tlsSupport ? false,
+  gstreamerSupport ? false,
+  cupsSupport ? false,
+  dbusSupport ? false,
+  openclSupport ? false,
+  cairoSupport ? false,
+  odbcSupport ? false,
+  netapiSupport ? false,
+  cursesSupport ? false,
+  vaSupport ? false,
+  pcapSupport ? false,
+  v4lSupport ? false,
+  saneSupport ? false,
+  gphoto2Support ? false,
+  krb5Support ? false,
+  pulseaudioSupport ? false,
+  udevSupport ? false,
+  xineramaSupport ? false,
+  vulkanSupport ? false,
+  sdlSupport ? false,
+  usbSupport ? false,
+  mingwSupport ? stdenv.hostPlatform.isDarwin,
+  waylandSupport ? false,
+  x11Support ? false,
+  ffmpegSupport ? false,
+  embedInstallers ? false,
 }:
 
 let
@@ -47,26 +80,23 @@ let
     };
   } ./setup-hook-darwin.sh;
 
-  # Building Wine with these flags isn’t supported on Darwin. Using any of them will result in an evaluation failures
+  # Building Wine with these flags isn't supported on Darwin. Using any of them will result in an evaluation failures
   # because they will put Darwin in `meta.badPlatforms`.
-  darwinUnsupportedFlags = [
-    "alsaSupport"
-    "cairoSupport"
-    "dbusSupport"
-    "fontconfigSupport"
-    "gtkSupport"
-    "netapiSupport"
-    "pulseaudioSupport"
-    "udevSupport"
-    "v4lSupport"
-    "vaSupport"
-    "waylandSupport"
-    "x11Support"
-    "xineramaSupport"
-  ];
-
   badPlatforms = lib.optional (
-    !supportFlags.mingwSupport || lib.any (flag: supportFlags.${flag}) darwinUnsupportedFlags
+    !mingwSupport
+    || alsaSupport
+    || cairoSupport
+    || dbusSupport
+    || fontconfigSupport
+    || gtkSupport
+    || netapiSupport
+    || pulseaudioSupport
+    || udevSupport
+    || v4lSupport
+    || vaSupport
+    || waylandSupport
+    || x11Support
+    || xineramaSupport
   ) "x86_64-darwin";
 
   # Staging patches (from src.staging when useStaging is true)
@@ -101,7 +131,6 @@ stdenv.mkDerivation (
     strictDeps = true;
 
     nativeBuildInputs =
-      with supportFlags;
       lib.optionals useStaging [
         autoconf
         hexdump
@@ -134,7 +163,6 @@ stdenv.mkDerivation (
         )
       )
       ++ toBuildInputs pkgArches (
-        with supportFlags;
         pkgs:
         [
           pkgs.freetype
@@ -242,11 +270,11 @@ stdenv.mkDerivation (
 
     configureFlags =
       prevConfigFlags
-      ++ lib.optionals supportFlags.waylandSupport [ "--with-wayland" ]
-      ++ lib.optionals supportFlags.vulkanSupport [ "--with-vulkan" ]
-      ++ lib.optionals (
-        (stdenv.hostPlatform.isDarwin && !supportFlags.xineramaSupport) || !supportFlags.x11Support
-      ) [ "--without-x" ];
+      ++ lib.optionals waylandSupport [ "--with-wayland" ]
+      ++ lib.optionals vulkanSupport [ "--with-vulkan" ]
+      ++ lib.optionals ((stdenv.hostPlatform.isDarwin && !xineramaSupport) || !x11Support) [
+        "--without-x"
+      ];
 
     # Wine locates a lot of libraries dynamically through dlopen().  Add
     # them to the RPATH so that the user doesn't have to set them in
@@ -255,10 +283,10 @@ stdenv.mkDerivation (
       map (path: "-rpath " + path) (
         map (x: "${lib.getLib x}/lib") ([ stdenv.cc.cc ] ++ finalAttrs.buildInputs)
         # libpulsecommon.so is linked but not found otherwise
-        ++ lib.optionals supportFlags.pulseaudioSupport (
+        ++ lib.optionals pulseaudioSupport (
           map (x: "${lib.getLib x}/lib/pulseaudio") (toBuildInputs pkgArches (pkgs: [ pkgs.libpulseaudio ]))
         )
-        ++ lib.optionals supportFlags.waylandSupport (
+        ++ lib.optionals waylandSupport (
           map (x: "${lib.getLib x}/share/wayland-protocols") (
             toBuildInputs pkgArches (pkgs: [ pkgs.wayland-protocols ])
           )
@@ -281,13 +309,13 @@ stdenv.mkDerivation (
       let
         links = prefix: pkg: "ln -s ${pkg} $out/${prefix}/${pkg.name}";
       in
-      lib.optionalString supportFlags.embedInstallers ''
+      lib.optionalString embedInstallers ''
         mkdir -p $out/share/wine/gecko $out/share/wine/mono/
         ${lib.strings.concatStringsSep "\n" (
           (map (links "share/wine/gecko") geckos) ++ (map (links "share/wine/mono") monos)
         )}
       ''
-      + lib.optionalString supportFlags.gstreamerSupport ''
+      + lib.optionalString gstreamerSupport ''
         # Wrapping Wine is tricky.
         # https://github.com/NixOS/nixpkgs/issues/63170
         # https://github.com/NixOS/nixpkgs/issues/28486
@@ -320,8 +348,8 @@ stdenv.mkDerivation (
       "bindnow"
       "stackclashprotection"
     ]
-    ++ lib.optional (stdenv.hostPlatform.isDarwin) "fortify"
-    ++ lib.optional (supportFlags.mingwSupport) "format";
+    ++ lib.optional stdenv.hostPlatform.isDarwin "fortify"
+    ++ lib.optional mingwSupport "format";
 
     passthru = {
       inherit pkgArches;

pkgs/applications/emulators/wine/default.nix

@@ -6,7 +6,7 @@
 # };
 # Make additional configurations on demand:
 # wine.override { wineBuild = "wine32"; wineRelease = "staging"; };
-{
+args@{
   lib,
   stdenv,
   callPackage,
@@ -50,6 +50,18 @@
 let
   sources = callPackage ./sources.nix { };
 
+  supportFlags = lib.filterAttrs (
+    name: _:
+    !builtins.elem name [
+      "lib"
+      "stdenv"
+      "callPackage"
+      "darwin"
+      "wineRelease"
+      "wineBuild"
+    ]
+  ) args;
+
   # Map user-facing release names to sources, pname suffix, and staging flag
   releaseInfo = {
     stable = {
@@ -77,47 +89,7 @@ let
   };
 
   baseWine = lib.getAttr wineBuild (
-    callPackage ./packages.nix (
-      releaseInfo.${wineRelease}
-      // {
-        supportFlags = {
-          inherit
-            alsaSupport
-            cairoSupport
-            cupsSupport
-            cursesSupport
-            dbusSupport
-            embedInstallers
-            fontconfigSupport
-            gettextSupport
-            gphoto2Support
-            gstreamerSupport
-            gtkSupport
-            krb5Support
-            mingwSupport
-            netapiSupport
-            odbcSupport
-            openclSupport
-            openglSupport
-            pcapSupport
-            pulseaudioSupport
-            saneSupport
-            sdlSupport
-            tlsSupport
-            udevSupport
-            usbSupport
-            v4lSupport
-            vaSupport
-            vulkanSupport
-            waylandSupport
-            x11Support
-            ffmpegSupport
-            xineramaSupport
-            ;
-        };
-        inherit moltenvk;
-      }
-    )
+    callPackage ./packages.nix (releaseInfo.${wineRelease} // supportFlags)
   );
 in
 if wineRelease == "yabridge" then

pkgs/applications/emulators/wine/packages.nix

@@ -10,14 +10,14 @@
   src,
   pnameSuffix ? "",
   useStaging ? false,
-  supportFlags,
   # Staging native build deps
   autoconf,
   hexdump,
   perl,
   python3,
   gitMinimal,
-}:
+  ...
+}@args:
 
 let
   inherit (src)
@@ -27,118 +27,110 @@ let
     gecko64
     mono
     ;
+
+  # Args to pass through to base.nix (support flags, etc.)
+  baseArgs = removeAttrs args [
+    "stdenv_32bit"
+    "lib"
+    "pkgs"
+    "pkgsi686Linux"
+    "pkgsCross"
+    "callPackage"
+    "replaceVars"
+  ];
 in
 {
-  wine32 = pkgsi686Linux.callPackage ./base.nix {
-    pname = "wine";
-    inherit
-      src
-      version
-      supportFlags
-      patches
-      moltenvk
-      pnameSuffix
-      useStaging
+  wine32 = pkgsi686Linux.callPackage ./base.nix (
+    baseArgs
+    // {
+      pname = "wine";
+      inherit version patches;
       # Forcing these `nativeBuildInputs` used in the `staging` to come
       # from ambient `pkgs`, rather than being provided by
       # `pkgsi686Linux.callPackage` for that platform.
-      autoconf
-      hexdump
-      perl
-      python3
-      gitMinimal
-      ;
-    pkgArches = [ pkgsi686Linux ];
-    geckos = [ gecko32 ];
-    mingwGccs = with pkgsCross; [ mingw32.buildPackages.gcc ];
-    monos = [ mono ];
-    platforms = [
-      "i686-linux"
-      "x86_64-linux"
-    ];
-  };
-  wine64 = callPackage ./base.nix {
-    pname = "wine64";
-    inherit
-      src
-      version
-      supportFlags
-      patches
-      moltenvk
-      pnameSuffix
-      useStaging
-      ;
-    pkgArches = [ pkgs ];
-    mingwGccs = with pkgsCross; [ mingwW64.buildPackages.gcc ];
-    geckos = [ gecko64 ];
-    monos = [ mono ];
-    configureFlags = [ "--enable-win64" ];
-    platforms = [
-      "x86_64-linux"
-      "x86_64-darwin"
-    ];
-    mainProgram = "wine";
-  };
-  wineWow = callPackage ./base.nix {
-    pname = "wine-wow";
-    inherit
-      src
-      version
-      supportFlags
-      patches
-      moltenvk
-      pnameSuffix
-      useStaging
-      ;
-    stdenv = stdenv_32bit;
-    pkgArches = [
-      pkgs
-      pkgsi686Linux
-    ];
-    geckos = [
-      gecko32
-      gecko64
-    ];
-    mingwGccs = with pkgsCross; [
-      mingw32.buildPackages.gcc
-      mingwW64.buildPackages.gcc
-    ];
-    monos = [ mono ];
-    buildScript = replaceVars ./builder-wow.sh {
-      # pkgconfig has trouble picking the right architecture
-      pkgconfig64remove = lib.makeSearchPathOutput "dev" "lib/pkgconfig" [
-        pkgs.glib
-        pkgs.gst_all_1.gstreamer
+      inherit
+        autoconf
+        hexdump
+        perl
+        python3
+        gitMinimal
+        ;
+      pkgArches = [ pkgsi686Linux ];
+      geckos = [ gecko32 ];
+      mingwGccs = with pkgsCross; [ mingw32.buildPackages.gcc ];
+      monos = [ mono ];
+      platforms = [
+        "i686-linux"
+        "x86_64-linux"
       ];
-    };
-    platforms = [ "x86_64-linux" ];
-    mainProgram = "wine";
-  };
-  wineWow64 = callPackage ./base.nix {
-    pname = "wine-wow64";
-    inherit
-      src
-      version
-      patches
-      moltenvk
-      pnameSuffix
-      useStaging
-      ;
-    supportFlags = supportFlags // {
-      mingwSupport = true;
-    }; # Required because we request "--enable-archs=x86_64"
-    pkgArches = [ pkgs ];
-    mingwGccs = with pkgsCross; [
-      mingw32.buildPackages.gcc
-      mingwW64.buildPackages.gcc
-    ];
-    geckos = [ gecko64 ];
-    monos = [ mono ];
-    configureFlags = [ "--enable-archs=x86_64,i386" ];
-    platforms = [
-      "x86_64-linux"
-      "x86_64-darwin"
-    ];
-    mainProgram = "wine";
-  };
+    }
+  );
+  wine64 = callPackage ./base.nix (
+    baseArgs
+    // {
+      pname = "wine64";
+      inherit version patches;
+      pkgArches = [ pkgs ];
+      mingwGccs = with pkgsCross; [ mingwW64.buildPackages.gcc ];
+      geckos = [ gecko64 ];
+      monos = [ mono ];
+      configureFlags = [ "--enable-win64" ];
+      platforms = [
+        "x86_64-linux"
+        "x86_64-darwin"
+      ];
+      mainProgram = "wine";
+    }
+  );
+  wineWow = callPackage ./base.nix (
+    baseArgs
+    // {
+      pname = "wine-wow";
+      inherit version patches;
+      stdenv = stdenv_32bit;
+      pkgArches = [
+        pkgs
+        pkgsi686Linux
+      ];
+      geckos = [
+        gecko32
+        gecko64
+      ];
+      mingwGccs = with pkgsCross; [
+        mingw32.buildPackages.gcc
+        mingwW64.buildPackages.gcc
+      ];
+      monos = [ mono ];
+      buildScript = replaceVars ./builder-wow.sh {
+        # pkgconfig has trouble picking the right architecture
+        pkgconfig64remove = lib.makeSearchPathOutput "dev" "lib/pkgconfig" [
+          pkgs.glib
+          pkgs.gst_all_1.gstreamer
+        ];
+      };
+      platforms = [ "x86_64-linux" ];
+      mainProgram = "wine";
+    }
+  );
+  wineWow64 = callPackage ./base.nix (
+    baseArgs
+    // {
+      pname = "wine-wow64";
+      inherit version patches;
+      mingwSupport = true; # Required because we request "--enable-archs=x86_64"
+      pkgArches = [ pkgs ];
+      mingwGccs = with pkgsCross; [
+        mingw32.buildPackages.gcc
+        mingwW64.buildPackages.gcc
+      ];
+      geckos = [ gecko64 ];
+      monos = [ mono ];
+      configureFlags = [ "--enable-archs=x86_64,i386" ];
+      platforms = [
+        "x86_64-linux"
+        "x86_64-darwin"
+      ];
+      mainProgram = "wine";
+    }
+  );
 }