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/default.nix

@@ -0,0 +1,52 @@
+{ stdenv, buildPackages, callPackage }:
+
+let
+  chezSystemMap = {
+    # See `/workarea` of source code for list of systems
+    "aarch64-darwin" = "tarm64osx";
+    "aarch64-linux" = "tarm64le";
+    "armv7l-linux" = "tarm32le";
+    "x86_64-darwin" = "ta6osx";
+    "x86_64-linux" = "ta6le";
+  };
+  inherit (stdenv.hostPlatform) system;
+  chezSystem = chezSystemMap.${system} or (throw "Add ${system} to chezSystemMap to enable building chez-racket");
+  # Chez Scheme uses an ad-hoc `configure`, hence we don't use the usual
+  # stdenv abstractions.
+  forBoot = {
+    pname = "chez-scheme-racket-boot";
+    configurePhase = ''
+      runHook preConfigure
+      ./configure --pb ZLIB=$ZLIB LZ4=$LZ4
+      runHook postConfigure
+    '';
+    makeFlags = [ "${chezSystem}.bootquick" ];
+    installPhase = ''
+      runHook preInstall
+      mkdir -p $out
+      pushd boot
+      mv $(ls -1 | grep -v "^pb$") -t $out
+      popd
+      runHook postInstall
+    '';
+  };
+  boot = buildPackages.callPackage (import ./shared.nix forBoot) {};
+  forFinal = {
+    pname = "chez-scheme-racket";
+    configurePhase = ''
+      runHook preConfigure
+      cp -r ${boot}/* -t ./boot
+      ./configure -m=${chezSystem} --installprefix=$out --installman=$out/share/man ZLIB=$ZLIB LZ4=$LZ4
+      runHook postConfigure
+    '';
+    preBuild = ''
+      pushd ${chezSystem}/c
+    '';
+    postBuild = ''
+      popd
+    '';
+    setupHook = ./setup-hook.sh;
+  };
+  final = callPackage (import ./shared.nix forFinal) {};
+in
+final