uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/p2p/soulseekqt/default.nix

@@ -0,0 +1,59 @@
+{ stdenv, lib, fetchzip, mkDerivation
+, appimageTools
+, autoPatchelfHook
+, desktop-file-utils
+, imagemagick
+, qtmultimedia
+}:
+
+mkDerivation rec {
+  pname = "soulseekqt";
+  version = "2018-1-30";
+  name="${pname}-${version}";
+
+  src = fetchzip {
+      url = "https://www.slsknet.org/SoulseekQt/Linux/SoulseekQt-${version}-64bit-appimage.tgz";
+      sha256 = "16ncnvv8h33f161mgy7qc0wjvvqahsbwvby65qhgfh9pbbgb4xgg";
+  };
+
+  appextracted = appimageTools.extractType2 {
+    inherit name;
+    src="${src}/SoulseekQt-2018-1-30-64bit.AppImage";
+  };
+
+  dontBuild = true;
+  dontConfigure = true;
+
+  nativeBuildInputs = [ imagemagick autoPatchelfHook desktop-file-utils ];
+  buildInputs = [ qtmultimedia stdenv.cc.cc ];
+
+  installPhase = ''
+      # directory in /nix/store so readonly
+      cd $appextracted
+
+      binary="$(readlink AppRun)"
+      install -Dm755 $binary -t $out/bin
+
+      # fixup and install desktop file
+      desktop-file-install --dir $out/share/applications \
+        --set-key Exec --set-value $binary \
+        --set-key Comment --set-value "${meta.description}" \
+        --set-key Categories --set-value Network default.desktop
+      mv $out/share/applications/default.desktop $out/share/applications/SoulseekQt.desktop
+
+      #TODO: write generic code to read icon path from $binary.desktop
+      icon="$(readlink .DirIcon)"
+      for size in 16 32 48 64 72 96 128 192 256 512 1024; do
+        mkdir -p $out/share/icons/hicolor/"$size"x"$size"/apps
+        convert -resize "$size"x"$size" $icon $out/share/icons/hicolor/"$size"x"$size"/apps/$icon
+      done
+    '';
+
+  meta = with lib; {
+    description = "Official Qt SoulSeek client";
+    homepage = "https://www.slsknet.org";
+    license = licenses.unfree;
+    maintainers = [ ];
+    platforms = [ "x86_64-linux" ];
+  };
+}