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/guile-modules/guile-reader/default.nix

@@ -0,0 +1,51 @@
+{ lib
+, stdenv
+, fetchurl
+, fetchpatch
+, gperf
+, guile
+, guile-lib
+, libffi
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "guile-reader";
+  version = "0.6.3";
+
+  src = fetchurl {
+    url = "http://download.savannah.nongnu.org/releases/${pname}/${pname}-${version}.tar.gz";
+    hash = "sha256-OMK0ROrbuMDKt42QpE7D6/9CvUEMW4SpEBjO5+tk0rs=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+  buildInputs = [
+    gperf
+    guile
+    guile-lib
+    libffi
+  ];
+
+  GUILE_SITE="${guile-lib}/share/guile/site";
+
+  configureFlags = [ "--with-guilemoduledir=$(out)/share/guile/site" ];
+
+  meta = with lib; {
+    homepage = "https://www.nongnu.org/guile-reader/";
+    description = "A simple framework for building readers for GNU Guile";
+    longDescription = ''
+       Guile-Reader is a simple framework for building readers for GNU Guile.
+
+       The idea is to make it easy to build procedures that extend Guile's read
+       procedure. Readers supporting various syntax variants can easily be
+       written, possibly by re-using existing "token readers" of a standard
+       Scheme readers. For example, it is used to implement Skribilo's
+       R5RS-derived document syntax.
+    '';
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = platforms.gnu;
+  };
+}