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/os-specific/darwin/apple-source-releases/diskdev_cmds/default.nix

@@ -0,0 +1,41 @@
+{ lib, appleDerivation, xcbuildHook, Libc, stdenv, macosPackages_11_0_1, xnu
+, fetchurl, libutil }:
+
+let
+  xnu-src = if stdenv.isAarch64 then macosPackages_11_0_1.xnu.src else xnu.src;
+  arch = if stdenv.isAarch64 then "arm" else "i386";
+in appleDerivation {
+  nativeBuildInputs = [ xcbuildHook ];
+  buildInputs = [ libutil ];
+
+  NIX_CFLAGS_COMPILE = "-I.";
+  NIX_LDFLAGS = "-lutil";
+  patchPhase = ''
+    # ugly hacks for missing headers
+    # most are bsd related - probably should make this a drv
+    unpackFile ${Libc.src}
+    unpackFile ${xnu-src}
+    mkdir System sys machine ${arch}
+    cp xnu-*/bsd/sys/disklabel.h sys
+    cp xnu-*/bsd/machine/disklabel.h machine
+    cp xnu-*/bsd/${arch}/disklabel.h ${arch}
+    cp -r xnu-*/bsd/sys System
+    cp -r Libc-*/uuid System
+    substituteInPlace diskdev_cmds.xcodeproj/project.pbxproj \
+      --replace 'DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";' ""
+  '';
+  installPhase = ''
+    install -D Products/Release/libdisk.a $out/lib/libdisk.a
+    rm Products/Release/libdisk.a
+    for f in Products/Release/*; do
+      if [ -f $f ]; then
+        install -D $f $out/bin/$(basename $f)
+      fi
+    done
+  '';
+
+  meta = {
+    platforms = lib.platforms.darwin;
+    maintainers = with lib.maintainers; [ matthewbauer ];
+  };
+}