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/audio/zynaddsubfx/mruby-zest/default.nix

@@ -0,0 +1,118 @@
+{ lib, stdenv
+, fetchFromGitHub
+, fetchpatch
+, bison
+, git
+, python2
+, rake
+, ruby
+, libGL
+, libuv
+, libX11
+}:
+
+let
+  mgem-list = fetchFromGitHub {
+    owner = "mruby";
+    repo = "mgem-list";
+    rev = "2033837203c8a141b1f9d23bb781fe0cbaefbd24";
+    sha256 = "0igf2nsx5i6g0yf7sjxxkngyriv213d0sjs3yidrflrabiywpxmm";
+  };
+
+  mruby-dir = fetchFromGitHub {
+    owner = "iij";
+    repo = "mruby-dir";
+    rev = "89dceefa1250fb1ae868d4cb52498e9e24293cd1";
+    sha256 = "0zrhiy9wmwmc9ls62iyb2z86j2ijqfn7rn4xfmrbrfxygczarsm9";
+  };
+
+  mruby-errno = fetchFromGitHub {
+    owner = "iij";
+    repo = "mruby-errno";
+    rev = "b4415207ff6ea62360619c89a1cff83259dc4db0";
+    sha256 = "12djcwjjw0fygai5kssxbfs3pzh3cpnq07h9m2h5b51jziw380xj";
+  };
+
+  mruby-file-stat = fetchFromGitHub {
+    owner = "ksss";
+    repo = "mruby-file-stat";
+    rev = "aa474589f065c71d9e39ab8ba976f3bea6f9aac2";
+    sha256 = "1clarmr67z133ivkbwla1a42wcjgj638j9w0mlv5n21mhim9rid5";
+  };
+
+  mruby-process = fetchFromGitHub {
+    owner = "iij";
+    repo = "mruby-process";
+    rev = "fe171fbe2a6cc3c2cf7d713641bddde71024f7c8";
+    sha256 = "00yrzc371f90gl5m1gbkw0qq8c394bpifssjr8p1wh5fmzhxqyml";
+  };
+
+  mruby-pack = fetchFromGitHub {
+    owner = "iij";
+    repo = "mruby-pack";
+    rev = "383a9c79e191d524a9a2b4107cc5043ecbf6190b";
+    sha256 = "003glxgxifk4ixl12sy4gn9bhwvgb79b4wga549ic79isgv81w2d";
+  };
+in
+stdenv.mkDerivation rec {
+  pname = "mruby-zest";
+  version = "3.0.5";
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = "${pname}-build";
+    rev = version;
+    sha256 = "0fxljrgamgz2rm85mclixs00b0f2yf109jc369039n1vf0l5m57d";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [ bison git python2 rake ruby ];
+  buildInputs = [ libGL libuv libX11 ];
+
+  patches = [
+    ./force-gcc-as-linker.patch
+    ./system-libuv.patch
+
+    # Pull upstream fix for -fno-common toolchains:
+    #   https://github.com/mruby-zest/mruby-zest-build/issues/25
+    (fetchpatch {
+      name = "fno-common.patch";
+      url = "https://github.com/mruby-zest/mruby-zest-build/commit/4eb88250f22ee684acac95d4d1f114df504e37a7.patch";
+      sha256 = "0wg7qy1vg0mzcxagf35bv35dlr0q17pxjicigpf86yqppvgrzrsb";
+    })
+  ];
+
+  # Add missing dependencies of deps/mruby-dir-glob/mrbgem.rake
+  # Should be fixed in next release, see bcadb0a5490bd6d599f1a0e66ce09b46363c9dae
+  postPatch = ''
+    mkdir -p mruby/build/mrbgems
+    ln -s ${mgem-list} mruby/build/mrbgems/mgem-list
+    ln -s ${mruby-dir} mruby/build/mrbgems/mruby-dir
+    ln -s ${mruby-errno} mruby/build/mrbgems/mruby-errno
+    ln -s ${mruby-file-stat} mruby/build/mrbgems/mruby-file-stat
+    ln -s ${mruby-process} mruby/build/mrbgems/mruby-process
+    ln -s ${mruby-pack} mruby/build/mrbgems/mruby-pack
+  '';
+
+  installTargets = [ "pack" ];
+
+  postInstall = ''
+    ln -s "$out/zest" "$out/zyn-fusion"
+    cp -a package/{font,libzest.so,schema,zest} "$out"
+
+    # mruby-widget-lib/src/api.c requires MainWindow.qml as part of a
+    # sanity check, even though qml files are compiled into the binary
+    # https://github.com/mruby-zest/mruby-zest-build/tree/3.0.5/src/mruby-widget-lib/src/api.c#L99-L116
+    # https://github.com/mruby-zest/mruby-zest-build/tree/3.0.5/linux-pack.sh#L17-L18
+    mkdir -p "$out/qml"
+    touch "$out/qml/MainWindow.qml"
+  '';
+
+  meta = with lib; {
+    description = "The Zest Framework used in ZynAddSubFX's UI";
+    homepage = "https://github.com/mruby-zest";
+    license = licenses.lgpl21;
+    maintainers = with maintainers; [ kira-bruneau ];
+    platforms = platforms.all;
+  };
+}