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/DarwinTools/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "DarwinTools";
+  version = "1";
+
+  src = fetchurl {
+    url = "https://opensource.apple.com/tarballs/DarwinTools/DarwinTools-${version}.tar.gz";
+    sha256 = "0hh4jl590jv3v830p77r3jcrnpndy7p2b8ajai3ldpnx2913jfhp";
+  };
+
+  patches = [
+    ./sw_vers-CFPriv.patch
+  ];
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace gcc cc
+  '';
+
+  configurePhase = ''
+    export SRCROOT=.
+    export SYMROOT=.
+    export DSTROOT=$out
+  '';
+
+  postInstall = ''
+    mv $out/usr/* $out
+    rmdir $out/usr
+  '';
+
+  meta = {
+    maintainers = [ lib.maintainers.matthewbauer ];
+    platforms = lib.platforms.darwin;
+  };
+}

pkgs/os-specific/darwin/DarwinTools/sw_vers-CFPriv.patch

@@ -0,0 +1,19 @@
+--- a/sw_vers.c	2021-04-19 13:06:50.131346864 +0900
++++ b/sw_vers.c	2021-04-19 13:07:32.481967474 +0900
+@@ -28,7 +28,15 @@
+  */
+ 
+ #include <CoreFoundation/CoreFoundation.h>
+-#include <CoreFoundation/CFPriv.h>
++
++// Avoid dependency on CoreFoundation/CFPriv, which no longer appears to be
++// part of the upstream sdk.
++
++CFDictionaryRef _CFCopyServerVersionDictionary(void);
++CFDictionaryRef _CFCopySystemVersionDictionary(void);
++extern CFStringRef _kCFSystemVersionProductNameKey;
++extern CFStringRef _kCFSystemVersionProductVersionKey;
++extern CFStringRef _kCFSystemVersionBuildVersionKey;
+ 
+ void usage(char *progname) {
+ 	fprintf(stderr, "Usage: %s [-productName|-productVersion|-buildVersion]\n", progname);