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/crackxls/default.nix

@@ -0,0 +1,43 @@
+{ lib, stdenv, fetchFromGitHub, fetchpatch, pkg-config, autoconf, automake, openssl, libgsf, gmp }:
+
+stdenv.mkDerivation rec {
+
+  pname = "crackxls";
+  version = "0.4";
+
+  src = fetchFromGitHub {
+    owner = "GavinSmith0123";
+    repo = "crackxls2003";
+    rev = "v${version}";
+    sha256 = "0q5jl7hcds3f0rhly3iy4fhhbyh9cdrfaw7zdrazzf1wswwhyssz";
+  };
+
+  patches = [
+    # Pull patch pending upstream inclusion for -fno-common support:
+    #   https://github.com/GavinSmith0123/crackxls2003/pull/3
+    (fetchpatch {
+      name = "fno-common.patch";
+      url = "https://github.com/GavinSmith0123/crackxls2003/commit/613d6c1844f76c7b67671aaa265375fed56c2a56.patch";
+      sha256 = "1pk67x67d9wji576mc57z5bzqlf9ygvn9m1z47w12mad7qmj9h1n";
+    })
+  ];
+
+  nativeBuildInputs = [ pkg-config autoconf automake ];
+  buildInputs = [ openssl libgsf gmp ];
+
+  # Avoid "-O5 -march=native"
+  makeFlags = [ "OPTIM_FLAGS=" ];
+
+  installPhase =
+  ''
+    mkdir -p $out/bin
+    cp crackxls2003 $out/bin/
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/GavinSmith0123/crackxls2003/";
+    description = "Used to break the encryption on old Microsoft Excel and Microsoft Word files";
+    platforms = platforms.linux;
+    license = licenses.gpl3;
+  };
+}