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/parsing/re2c/default.nix

@@ -0,0 +1,53 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, nix-update-script
+, python3
+
+# for passthru.tests
+, ninja
+, php
+, spamassassin
+}:
+
+stdenv.mkDerivation rec {
+  pname = "re2c";
+  version = "3.0";
+
+  src = fetchFromGitHub {
+    owner  = "skvadrik";
+    repo   = "re2c";
+    rev    = version;
+    sha256 = "sha256-ovwmltu97fzNQT0oZHefrAo4yV9HV1NwcY4PTSM5Bro=";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    python3
+  ];
+
+  doCheck = true;
+  enableParallelBuilding = true;
+
+  preCheck = ''
+    patchShebangs run_tests.py
+  '';
+
+  passthru = {
+    updateScript = nix-update-script {
+      attrPath = pname;
+    };
+    tests = {
+      inherit ninja php spamassassin;
+    };
+  };
+
+  meta = with lib; {
+    description = "Tool for writing very fast and very flexible scanners";
+    homepage    = "https://re2c.org";
+    license     = licenses.publicDomain;
+    platforms   = platforms.all;
+    maintainers = with maintainers; [ thoughtpolice ];
+  };
+}