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/meters_lv2/default.nix

@@ -0,0 +1,57 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, pkg-config
+, lv2
+, libGLU
+, libGL
+, gtk2
+, cairo
+, pango
+, fftwFloat
+, libjack2
+}:
+
+stdenv.mkDerivation rec {
+  pname = "meters.lv2";
+  version = "0.9.20";
+  robtkVersion = "0.7.5";
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ lv2 libGLU libGL gtk2 cairo pango fftwFloat libjack2 ];
+
+  src = fetchFromGitHub {
+    owner = "x42";
+    repo = "meters.lv2";
+    rev = "v${version}";
+    sha256 = "sha256-eGXTbE83bJEDqTBltL6ZX9qa/OotCFmUxpE/aLqGELU=";
+  };
+
+  robtkSrc = fetchFromGitHub {
+    owner = "x42";
+    repo = "robtk";
+    rev = "v${robtkVersion}";
+    sha256 = "sha256-L1meipOco8esZl+Pgqgi/oYVbhimgh9n8p9Iqj3dZr0=";
+  };
+
+  postUnpack = ''
+    rm -rf $sourceRoot/robtk/
+    ln -s ${robtkSrc} $sourceRoot/robtk
+  '';
+
+  postPatch = ''
+    substituteInPlace Makefile --replace "-msse -msse2 -mfpmath=sse" ""
+  ''; # remove x86-specific flags
+
+  meter_VERSION = version;
+  enableParallelBuilding = true;
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  meta = with lib; {
+    description = "Collection of audio level meters with GUI in LV2 plugin format";
+    homepage = "https://x42.github.io/meters.lv2/";
+    maintainers = with maintainers; [ ehmry ];
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}