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/shellcheck/default.nix

@@ -0,0 +1,46 @@
+{ stdenv, lib, ShellCheck, haskell, pandoc }:
+
+# this wraps around the haskell package
+# and puts the documentation into place
+
+let
+  # TODO: move to lib/ in separate PR
+  overrideMeta = drv: overrideFn:
+    let
+      drv' = if drv ? meta then drv else drv // { meta = {}; };
+      pos = (builtins.unsafeGetAttrPos "pname" drv');
+      meta' = drv'.meta // {
+        # copied from the mkDerivation code
+        position = pos.file + ":" + toString pos.line;
+      };
+    in drv' // { meta = meta' // overrideFn meta'; };
+
+  bin = haskell.lib.compose.justStaticExecutables ShellCheck;
+
+  shellcheck = stdenv.mkDerivation {
+    pname = "shellcheck";
+    version = bin.version;
+
+    inherit (ShellCheck) meta src;
+
+    nativeBuildInputs = [ pandoc ];
+
+    outputs = [ "bin" "man" "doc" "out" ];
+
+    buildPhase = ''
+      pandoc -s -f markdown-smart -t man shellcheck.1.md -o shellcheck.1
+    '';
+
+    installPhase = ''
+      install -Dm755 ${bin}/bin/shellcheck $bin/bin/shellcheck
+      install -Dm644 README.md $doc/share/shellcheck/README.md
+      install -Dm644 shellcheck.1 $man/share/man/man1/shellcheck.1
+      mkdir $out
+    '';
+  };
+
+in
+  overrideMeta shellcheck (old: {
+    maintainers = with lib.maintainers; [ Profpatsch ];
+    outputsToInstall = [ "bin" "man" "doc" ];
+  })