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/development/libraries/nsync/default.nix

@@ -0,0 +1,29 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, cmake
+}:
+
+stdenv.mkDerivation rec {
+  pname = "nsync";
+  version = "1.24.0";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-jQJtlBDR6efBe1tFOUOZ6awaMTT33qM/GbvbwiWTZxw=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = {
+    homepage = "https://github.com/google/nsync";
+    description = "C library that exports various synchronization primitives";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ puffnfresh ];
+    # On macOS we get an error for some reason:
+    # > mkdir: cannot create directory 'build': File exists
+    platforms = lib.platforms.linux;
+  };
+}