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/tools/security/dieharder/default.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv, fetchurl, gsl
+, dieharder, testers }:
+
+stdenv.mkDerivation rec {
+  pname = "dieharder";
+  version = "3.31.1";
+
+  src = fetchurl {
+    url = "http://webhome.phy.duke.edu/~rgb/General/dieharder/dieharder-${version}.tgz";
+    hash = "sha256-bP8P+DlMVTVJrHQzNZzPyVX7JnlCYDFGIN+l5M1Lcn8=";
+  };
+
+  patches = [
+    # Include missing stdint.h header
+    ./stdint.patch
+  ];
+
+  # Workaround build failure on -fno-common toolchains:
+  #   ld: include/dieharder/parse.h:21: multiple definition of `splitbuf';
+  #     include/dieharder/parse.h:21: first defined here
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
+  buildInputs = [ gsl ];
+
+  passthru = {
+    tests.version = testers.testVersion { package = dieharder; };
+  };
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "A Random Number Generator test suite";
+    homepage = "https://webhome.phy.duke.edu/~rgb/General/dieharder.php";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ zhaofengli ];
+    platforms = platforms.unix;
+  };
+}