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/games/zdoom/bcc-git.nix

@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  pname = "doom-bcc";
+  version = "unstable-2018-01-04";
+
+  src = fetchFromGitHub {
+    owner = "wormt";
+    repo = "bcc";
+    rev = "d58b44d9f18b28fd732c27113e5607a454506d19";
+    sha256 = "1m83ip40ln61qrvb1fbgaqbld2xip9n3k817lwkk1936pml9zcrq";
+  };
+
+  enableParallelBuilding = true;
+  makeFlags = ["CC=${stdenv.cc.targetPrefix}cc"];
+
+  patches = [ ./bcc-warning-fix.patch ];
+
+  installPhase = ''
+    mkdir -p $out/{bin,lib,share/doc}
+    install -m755 bcc $out/bin/bcc
+    cp -av doc $out/share/doc/bcc
+    cp -av lib $out/lib/bcc
+  '';
+
+  meta = with lib; {
+    description = "Compiler for Doom/Hexen scripts (ACS, BCS)";
+    homepage = "https://github.com/wormt/bcc";
+    license = licenses.mit;
+    maintainers = with maintainers; [ertes];
+  };
+}