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/tools/simavr/default.nix

@@ -0,0 +1,46 @@
+{ lib, stdenv, fetchFromGitHub, libelf, which, pkg-config, freeglut
+, avrgcc, avrlibc
+, libGLU, libGL
+, GLUT }:
+
+stdenv.mkDerivation rec {
+  pname = "simavr";
+  version = "1.7";
+
+  src = fetchFromGitHub {
+    owner = "buserror";
+    repo = "simavr";
+    rev = "v${version}";
+    sha256 = "0njz03lkw5374x1lxrq08irz4b86lzj2hibx46ssp7zv712pq55q";
+  };
+
+  makeFlags = [
+    "DESTDIR=$(out)"
+    "PREFIX="
+    "AVR_ROOT=${avrlibc}/avr"
+    "SIMAVR_VERSION=${version}"
+    "AVR=avr-"
+  ];
+
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=stringop-truncation" ];
+
+  nativeBuildInputs = [ which pkg-config avrgcc ];
+  buildInputs = [ libelf freeglut libGLU libGL ]
+    ++ lib.optional stdenv.isDarwin GLUT;
+
+  # Hack to avoid TMPDIR in RPATHs.
+  preFixup = ''rm -rf "$(pwd)" && mkdir "$(pwd)" '';
+
+  doCheck = true;
+  checkTarget = "-C tests run_tests";
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "A lean and mean Atmel AVR simulator";
+    homepage    = "https://github.com/buserror/simavr";
+    license     = licenses.gpl3;
+    platforms   = platforms.unix;
+    maintainers = with maintainers; [ goodrone ];
+  };
+
+}