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/checkmake/default.nix

@@ -0,0 +1,50 @@
+{ buildGoModule, fetchFromGitHub, pandoc, lib }:
+
+buildGoModule rec {
+  pname = "checkmake";
+  version = "0.2.1";
+
+  src = fetchFromGitHub {
+    owner = "mrtazz";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-Zkrr1BrP8ktRGf6EYhDpz3oTnX6msrSpfFqkqi9pmlc=";
+  };
+
+  vendorSha256 = null;
+
+  nativeBuildInputs = [ pandoc ];
+
+  preBuild =
+    let
+      buildVars = {
+        version = version;
+        buildTime = "N/A";
+        builder = "nix";
+        goversion = "$(go version | egrep -o 'go[0-9]+[.][^ ]*')";
+      };
+      buildVarsFlags = lib.concatStringsSep " " (lib.mapAttrsToList (k: v: "-X main.${k}=${v}") buildVars);
+    in
+    ''
+      buildFlagsArray+=("-ldflags=${buildVarsFlags}")
+    '';
+
+  ldflags = [ "-s" "-w" ];
+
+  postInstall = ''
+    mkdir -p $out/share/man/man1
+    pandoc -s -t man -o $out/share/man/man1/checkmake.1 man/man1/checkmake.1.md
+  '';
+
+  meta = with lib; {
+    description = "Experimental tool for linting and checking Makefiles";
+    homepage = "https://github.com/mrtazz/checkmake";
+    license = licenses.mit;
+    maintainers = with maintainers; [ vidbina ];
+    platforms = platforms.linux;
+    longDescription = ''
+      checkmake is an experimental tool for linting and checking
+      Makefiles. It may not do what you want it to.
+    '';
+  };
+}