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/libraries/science/math/ecos/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "ecos";
+  version = "2.0.7";
+
+  src = fetchFromGitHub {
+    owner = "embotech";
+    repo = "ecos";
+    rev = version;
+    sha256 = "1hsndim5kjvcwk5svqa4igawzahj982180xj1d7yd0dbjlgxc7w7";
+  };
+
+  buildPhase = ''
+    make all shared
+  '';
+
+  doCheck = true;
+  checkPhase = ''
+    make test
+    ./runecos
+  '';
+
+  installPhase = ''
+    mkdir -p $out/lib
+    cp lib*.a lib*.so $out/lib
+    cp -r include $out/
+  '';
+
+  meta = with lib; {
+    description = "A lightweight conic solver for second-order cone programming";
+    homepage = "https://www.embotech.com/ECOS";
+    downloadPage = "https://github.com/embotech/ecos/releases";
+    license = licenses.gpl3;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ bhipple ];
+  };
+}