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/log4cpp/default.nix

@@ -0,0 +1,20 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "log4cpp";
+  version = "1.1.3";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/log4cpp/${pname}-${version}.tar.gz";
+    sha256 = "07gmr3jyaf2239n9sp6h7hwdz1pv7b7aka8n06gmr2fnlmaymfrc";
+  };
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    homepage    = "http://log4cpp.sourceforge.net/";
+    description = "A logging framework for C++ patterned after Apache log4j";
+    license     = licenses.lgpl21Plus;
+    platforms   = platforms.unix;
+  };
+}