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/jackmix/default.nix

@@ -0,0 +1,35 @@
+{ mkDerivation, lib, fetchFromGitHub, pkg-config, sconsPackages, qtbase, lash, libjack2, jack ? libjack2, alsa-lib }:
+
+mkDerivation rec {
+  pname = "jackmix";
+  version = "0.6.0";
+
+  src = fetchFromGitHub {
+    owner = "kampfschlaefer";
+    repo = "jackmix";
+    rev = version;
+    sha256 = "0p59411vk38lccn24r7nih10jpgg9i46yc26zpc3x13amxwwpd4h";
+  };
+
+  patches = [ ./no_error.patch ];
+
+  nativeBuildInputs = [ sconsPackages.scons_3_1_2 pkg-config ];
+  buildInputs = [
+    qtbase
+    lash
+    jack
+    alsa-lib
+  ];
+
+  installPhase = ''
+    install -D jackmix/jackmix $out/bin/jackmix
+  '';
+
+  meta = with lib; {
+    description = "Matrix-Mixer for the Jack-Audio-connection-Kit";
+    homepage = "https://github.com/kampfschlaefer/jackmix";
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ kampfschlaefer ];
+    platforms = platforms.linux;
+  };
+}

pkgs/applications/audio/jackmix/no_error.patch

@@ -0,0 +1,13 @@
+diff --git a/SConstruct b/SConstruct
+index 8bf6517..a432aa9 100644
+--- a/SConstruct
++++ b/SConstruct
+@@ -16,7 +16,7 @@ env = Environment(
+ env.Replace(LIBS="")
+ env.Replace(LIBPATH="")
+ 
+-env.MergeFlags(['-Wall', '-Werror', '-g', '-fpic', '-std=c++11'])
++env.MergeFlags(['-g', '-fpic', '-std=c++11'])
+ 
+ tests = {}
+ tests.update(env['PKGCONFIG_TESTS'])