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/servers/nfs-ganesha/default.nix

@@ -0,0 +1,46 @@
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config
+, krb5, xfsprogs, jemalloc, dbus, libcap
+, ntirpc, liburcu, bison, flex, nfs-utils
+} :
+
+stdenv.mkDerivation rec {
+  pname = "nfs-ganesha";
+  version = "4.0";
+
+  src = fetchFromGitHub {
+    owner = "nfs-ganesha";
+    repo = "nfs-ganesha";
+    rev = "V${version}";
+    sha256 = "1zv7aprmydyjs53xnn1h1s6xxb22pic7va23459zq0nfnhmsgd26";
+  };
+
+  preConfigure = "cd src";
+
+  cmakeFlags = [ "-DUSE_SYSTEM_NTIRPC=ON" ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    bison
+    flex
+  ];
+
+  buildInputs = [
+    krb5
+    xfsprogs
+    jemalloc
+    dbus.lib
+    libcap
+    ntirpc
+    liburcu
+    nfs-utils
+  ];
+
+  meta = with lib; {
+    description = "NFS server that runs in user space";
+    homepage = "https://github.com/nfs-ganesha/nfs-ganesha/wiki";
+    maintainers = [ maintainers.markuskowa ];
+    platforms = platforms.linux;
+    license = licenses.lgpl3Plus;
+  };
+}