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-cairo/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, stdenv
+, fetchurl
+, cairo
+, expat
+, guile
+, guile-lib
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "guile-cairo";
+  version = "1.11.2";
+
+  src = fetchurl {
+    url = "mirror://savannah/${pname}/${pname}-${version}.tar.gz";
+    hash = "sha256-YjLU3Cxb2dMxE5s7AfQ0PD4fucp4mDYaaZIGcwlBoHs=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+  buildInputs = [
+    cairo
+    expat
+    guile
+  ];
+
+  enableParallelBuilding = true;
+
+  doCheck = false; # Cannot find unit-test module from guile-lib
+  checkInputs = [ guile-lib ];
+
+  meta = with lib; {
+    homepage = "https://www.nongnu.org/guile-cairo/";
+    description = "Cairo bindings for GNU Guile";
+    longDescription = ''
+      Guile-Cairo wraps the Cairo graphics library for Guile Scheme.
+
+      Guile-Cairo is complete, wrapping almost all of the Cairo API.  It is API
+      stable, providing a firm base on which to do graphics work.  Finally, and
+      importantly, it is pleasant to use.  You get a powerful and well
+      maintained graphics library with all of the benefits of Scheme: memory
+      management, exceptions, macros, and a dynamic programming environment.
+    '';
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ vyp ];
+    platforms = platforms.linux;
+  };
+}