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/libctl/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, gfortran
+, guile
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "libctl";
+  version = "4.5.1";
+
+  src = fetchFromGitHub {
+    owner = "NanoComp";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "uOydBWYPXSBUi+4MM6FNx6B5l2to7Ny9Uc1MMTV9bGA=";
+  };
+
+  nativeBuildInputs = [ autoreconfHook gfortran guile pkg-config ];
+
+  configureFlags = [ "--enable-shared" ];
+
+  meta = with lib; {
+    description = "Guile-based library for supporting flexible control files in scientific simulations";
+    homepage = "https://github.com/NanoComp/libctl";
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ carpinchomug ];
+  };
+}