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/librep/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, stdenv
+, fetchurl
+, autoreconfHook
+, gdbm
+, gmp
+, libffi
+, pkg-config
+, readline
+, texinfo
+}:
+
+stdenv.mkDerivation rec {
+  pname = "librep";
+  version = "0.92.7";
+
+  src = fetchurl {
+    url = "https://download.tuxfamily.org/${pname}/${pname}_${version}.tar.xz";
+    sha256 = "1bmcjl1x1rdh514q9z3hzyjmjmwwwkziipjpjsl301bwmiwrd8a8";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+    texinfo
+  ];
+  buildInputs = [
+    gdbm
+    gmp
+    libffi
+    readline
+  ];
+
+  setupHook = ./setup-hook.sh;
+
+  meta = with lib;{
+    homepage = "http://sawfish.tuxfamily.org/";
+    description = "Fast, lightweight, and versatile Lisp environment";
+    longDescription = ''
+      librep is a Lisp system for UNIX, comprising an interpreter, a byte-code
+      compiler, and a virtual machine. It can serve as an application extension
+      language but is also suitable for standalone scripts.
+    '';
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.AndersonTorres ];
+    platforms = platforms.unix;
+    broken = stdenv.isDarwin; # never built on Hydra https://hydra.nixos.org/job/nixpkgs/trunk/librep.x86_64-darwin
+  };
+}
+# TODO: investigate fetchFromGithub

pkgs/development/libraries/librep/setup-hook.sh

@@ -0,0 +1,5 @@
+addRepDLLoadPath () {
+    addToSearchPath REP_DL_LOAD_PATH $1/lib/rep
+}
+
+addEnvHooks "$hostOffset" addRepDLLoadPath