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/fmsynth/default.nix

@@ -0,0 +1,49 @@
+{ lib, stdenv, fetchFromGitHub, gtkmm2, lv2, lvtk, pkg-config }:
+stdenv.mkDerivation {
+  pname = "fmsynth-unstable";
+  version = "2015-02-07";
+  src = fetchFromGitHub {
+    owner = "Themaister";
+    repo = "libfmsynth";
+    rev = "9ffa1d2fea287f1209b210d2dbde2f0f60f37176";
+    sha256 = "1bk0bpr069hzx2508rgfbwpxiqgr7dmdkhqdywmd2i4rmibgrm1q";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ gtkmm2 lv2 lvtk ];
+
+  buildPhase = ''
+    cd lv2
+    substituteInPlace GNUmakefile --replace "/usr/lib/lv2" "$out/lib/lv2"
+    make  SIMD=0
+  '';
+
+  preInstall = "mkdir -p $out/lib/lv2";
+
+  meta = {
+    description = "a flexible 8 operator FM synthesizer for LV2";
+    longDescription = ''
+      The synth core supports:
+
+      - Arbitrary amounts of polyphony
+      - 8 operators
+      - No fixed "algorithms"
+      - Arbitrary modulation, every operator can modulate any other operator, even itself
+      - Arbitrary carrier selection, every operator can be a carrier
+      - Sine LFO, separate LFO per voice, modulates amplitude and frequency of operators
+      - Envelope per operator
+      - Carrier stereo panning
+      - Velocity sensitivity per operator
+      - Mod wheel sensitivity per operator
+      - Pitch bend
+      - Keyboard scaling
+      - Sustain, sustained keys can overlap each other for a very rich sound
+      - Full floating point implementation optimized for SIMD
+      - Hard real-time constraints
+    '';
+    homepage = "https://github.com/Themaister/libfmsynth";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.magnetophon ];
+    platforms = lib.platforms.linux;
+  };
+}