libxxf86dga: refactor, move to pkgs/by-name and rename from xorg.libXxf86dga

pkgs/by-name/li/libxxf86dga/package.nix

···
+{
+  lib,
+  stdenv,
+  fetchurl,
+  pkg-config,
+  libX11,
+  libXext,
+  xorgproto,
+  writeScript,
+  testers,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "libxxf86dga";
+  version = "1.1.6";
+
+  src = fetchurl {
+    url = "mirror://xorg/individual/lib/libXxf86dga-${finalAttrs.version}.tar.xz";
+    hash = "sha256-vkRCdXmAj+OiF9WfUcrnVqJpE+tuTIc4zKtl/1bXmA8=";
+  };
+
+  strictDeps = true;
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [
+    libX11
+    libXext
+    xorgproto
+  ];
+
+  propagatedBuildInputs = [ xorgproto ];
+
+  configureFlags = lib.optional (
+    stdenv.hostPlatform != stdenv.buildPlatform
+  ) "--enable-malloc0returnsnull";
+
+  passthru = {
+    updateScript = writeScript "update-${finalAttrs.pname}" ''
+      #!/usr/bin/env nix-shell
+      #!nix-shell -i bash -p common-updater-scripts
+      version="$(list-directory-versions --pname libXxf86dga \
+        --url https://xorg.freedesktop.org/releases/individual/lib/ \
+        | sort -V | tail -n1)"
+      update-source-version ${finalAttrs.pname} "$version"
+    '';
+    tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
+  };
+
+  meta = {
+    description = "Client library for the XFree86-DGA extension";
+    homepage = "https://gitlab.freedesktop.org/xorg/lib/libxxf86dga";
+    license = lib.licenses.x11;
+    maintainers = [ ];
+    pkgConfigModules = [ "xxf86dga" ];
+    platforms = lib.platforms.unix;
+  };
+})

pkgs/servers/x11/xorg/default.nix

···
   libxrender,
   libxv,
   libxvmc,
+  libxxf86dga,
   lndir,
   luit,
   makedepend,
···
   libXrender = libxrender;
   libXv = libxv;
   libXvMC = libxvmc;
+  libXxf86dga = libxxf86dga;
   utilmacros = util-macros;
   xcbproto = xcb-proto;
   xkeyboardconfig = xkeyboard-config;
···
       passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
       meta = {
         pkgConfigModules = [ "xtst" ];
-        platforms = lib.platforms.unix;
-      };
-    })
-  ) { };
-
-  # THIS IS A GENERATED FILE.  DO NOT EDIT!
-  libXxf86dga = callPackage (
-    {
-      stdenv,
-      pkg-config,
-      fetchurl,
-      libX11,
-      libXext,
-      xorgproto,
-      testers,
-    }:
-    stdenv.mkDerivation (finalAttrs: {
-      pname = "libXxf86dga";
-      version = "1.1.6";
-      builder = ./builder.sh;
-      src = fetchurl {
-        url = "mirror://xorg/individual/lib/libXxf86dga-1.1.6.tar.xz";
-        sha256 = "03wqsxbgyrdbrhw8fk3fxc9nk8jnwz5537ym2yif73w0g5sl4i5y";
-      };
-      hardeningDisable = [
-        "bindnow"
-        "relro"
-      ];
-      strictDeps = true;
-      nativeBuildInputs = [ pkg-config ];
-      buildInputs = [
-        libX11
-        libXext
-        xorgproto
-      ];
-      passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
-      meta = {
-        pkgConfigModules = [ "xxf86dga" ];
         platforms = lib.platforms.unix;
       };
     })

pkgs/servers/x11/xorg/generate-expr-from-tarballs.pl

···
 $pcMap{"xv"} = "libXv";
 $pcMap{"xvmc"} = "libXvMC";
 $pcMap{"xvmc-wrapper"} = "libXvMC";
+$pcMap{"xxf86dga"} = "libXxf86dga";
 $pcMap{"\$PIXMAN"} = "pixman";
 $pcMap{"\$RENDERPROTO"} = "xorgproto";
 $pcMap{"\$DRI3PROTO"} = "xorgproto";
···
   libxrender,
   libxv,
   libxvmc,
+  libxxf86dga,
   lndir,
   luit,
   makedepend,
···
   libXrender = libxrender;
   libXv = libxv;
   libXvMC = libxvmc;
+  libXxf86dga = libxxf86dga;
   utilmacros = util-macros;
   xcbproto = xcb-proto;
   xkeyboardconfig = xkeyboard-config;

pkgs/servers/x11/xorg/overrides.nix

···
     ];
     configureFlags = attrs.configureFlags or [ ] ++ malloc0ReturnsNullCrossFlag;
   });
-  libXxf86dga = super.libXxf86dga.overrideAttrs (attrs: {
-    configureFlags = attrs.configureFlags or [ ] ++ malloc0ReturnsNullCrossFlag;
-  });
   libXxf86misc = super.libXxf86misc.overrideAttrs (attrs: {
     configureFlags = attrs.configureFlags or [ ] ++ malloc0ReturnsNullCrossFlag;
   });

pkgs/servers/x11/xorg/tarballs.list

···
 mirror://xorg/individual/lib/libXTrap-1.0.1.tar.bz2
 mirror://xorg/individual/lib/libXt-1.3.1.tar.xz
 mirror://xorg/individual/lib/libXtst-1.2.5.tar.xz
-mirror://xorg/individual/lib/libXxf86dga-1.1.6.tar.xz
 mirror://xorg/individual/lib/libXxf86misc-1.0.4.tar.bz2
 mirror://xorg/individual/lib/libXxf86vm-1.1.6.tar.xz
 mirror://xorg/individual/lib/xcb-util-cursor-0.1.5.tar.xz