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/ympd/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, pkg-config
+, libmpdclient
+, openssl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "ympd";
+  version = "1.3.0";
+
+  src = fetchFromGitHub {
+    owner = "notandy";
+    repo = "ympd";
+    rev = "v${version}";
+    sha256 = "1nvb19jd556v2h2bi7w4dcl507p3p8xvjkqfzrcsy7ccy3502brq";
+  };
+
+  # Workaround build failure on -fno-common toolchains like upstream
+  # gcc-10. Otherwise build fails as:
+  #   ld: CMakeFiles/ympd.dir/src/mpd_client.c.o:(.bss+0x0): multiple definition of `mpd';
+  #     CMakeFiles/ympd.dir/src/ympd.c.o:(.bss+0x20): first defined here
+  # Should be fixed by pending https://github.com/notandy/ympd/pull/191 (does not apply as is).
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
+  nativeBuildInputs = [ cmake pkg-config ];
+  buildInputs = [ libmpdclient openssl ];
+
+  meta = with lib; {
+    homepage = "https://github.com/notandy/ympd";
+    description = "Standalone MPD Web GUI written in C, utilizing Websockets and Bootstrap/JS";
+    maintainers = [ maintainers.siddharthist ];
+    platforms = platforms.unix;
+    license = licenses.gpl2Plus;
+  };
+}