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/picoloop/default.nix

@@ -0,0 +1,50 @@
+{ lib, stdenv, fetchFromGitHub, libpulseaudio, SDL2, SDL2_image, SDL2_ttf, alsa-lib, libjack2 }:
+
+stdenv.mkDerivation rec {
+  pname = "picoloop";
+  version = "0.77e";
+
+  src = fetchFromGitHub {
+    repo = pname;
+    owner = "yoyz";
+    rev = "${pname}-${version}";
+    sha256 = "0i8j8rgyha3ara6d4iis3wcimszf2csxdwrm5yq0wyhg74g7cvjd";
+  };
+
+  buildInputs = [
+    libpulseaudio
+    SDL2
+    SDL2.dev
+    SDL2_image
+    SDL2_ttf
+    alsa-lib
+    libjack2
+  ];
+
+  sourceRoot = "source/picoloop";
+
+  makeFlags = [ "-f Makefile.PatternPlayer_debian_RtAudio_sdl20" ];
+
+  NIX_CFLAGS_COMPILE = [ "-I${SDL2.dev}/include/SDL2" ];
+
+  hardeningDisable = [ "format" ];
+
+  patchPhase = ''
+    substituteInPlace SDL_GUI.cpp \
+    --replace "\"font.ttf\"" "\"$out/share/font.ttf\"" \
+    --replace "\"font.bmp\"" "\"$out/share/font.bmp\""
+  '';
+
+  installPhase = ''
+    mkdir -p $out/{bin,share}
+    cp PatternPlayer_debian_RtAudio_sdl20 $out/bin/picoloop
+    cp {font.*,LICENSE} $out/share
+  '';
+
+  meta = with lib; {
+    description = "A synth and a stepsequencer (a clone of the famous nanoloop)";
+    homepage = "https://github.com/yoyz/picoloop";
+    platforms = platforms.linux;
+    license = licenses.bsd3;
+  };
+}