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/compilers/chez-racket/shared.nix

@@ -0,0 +1,41 @@
+args:
+{ stdenv, lib, fetchFromGitHub, coreutils, darwin
+, ncurses, libiconv, libX11, zlib, lz4
+}:
+
+stdenv.mkDerivation (args // {
+  version = "unstable-2021-12-11";
+
+  src = fetchFromGitHub {
+    owner  = "racket";
+    repo   = "ChezScheme";
+    rev    = "8846c96b08561f05a937d5ecfe4edc96cc99be39";
+    sha256 = "IYJQzT88T8kFahx2BusDOyzz6lQDCbZIfSz9rZoNF7A=";
+    fetchSubmodules = true;
+  };
+
+  prePatch = ''
+    rm -rf zlib/*.c lz4/lib/*.c
+  '';
+
+  postPatch = ''
+    export ZLIB="$(find ${zlib.out}/lib -type f | sort | head -n1)"
+    export LZ4="$(find ${lz4.out}/lib -type f | sort | head -n1)"
+  '';
+
+  nativeBuildInputs = lib.optionals stdenv.isDarwin (with darwin; [ cctools autoSignDarwinBinariesHook ]);
+  buildInputs = [ ncurses libX11 zlib lz4 ]
+    ++ lib.optional stdenv.isDarwin libiconv;
+
+  enableParallelBuilding = true;
+
+  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isGNU "-Wno-error=format-truncation";
+
+  meta = {
+    description  = "Fork of Chez Scheme for Racket";
+    homepage     = "https://github.com/racket/ChezScheme";
+    license      = lib.licenses.asl20;
+    maintainers  = with lib.maintainers; [ l-as ];
+    platforms    = lib.platforms.unix;
+  };
+})