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/tools/misc/cpuminer/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv
+, fetchFromGitHub
+, curl
+, jansson
+, perl
+, autoreconfHook
+}:
+
+stdenv.mkDerivation rec {
+  pname = "cpuminer";
+  version = "2.5.1";
+
+  src = fetchFromGitHub {
+    owner = "pooler";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0f44i0z8rid20c2hiyp92xq0q0mjj537r05sa6vdbc0nl0a5q40i";
+  };
+
+  patchPhase = if stdenv.cc.isClang then "${perl}/bin/perl ./nomacro.pl" else null;
+
+  buildInputs = [ curl jansson autoreconfHook ];
+
+  configureFlags = [ "CFLAGS=-O3" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/pooler/cpuminer";
+    description = "CPU miner for Litecoin and Bitcoin";
+    license = licenses.gpl2;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ pSub ];
+  };
+}