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/applications/science/math/perseus/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv, fetchurl, unzip }:
+
+stdenv.mkDerivation {
+  pname = "perseus";
+  version = "4-beta";
+  nativeBuildInputs = [ unzip ];
+
+  hardeningDisable = [ "stackprotector" ];
+
+  src = fetchurl {
+    url = "http://www.sas.upenn.edu/~vnanda/source/perseus_4_beta.zip";
+    sha256 = "09brijnqabhgfjlj5wny0bqm5dwqcfkp1x5wif6yzdmqh080jybj";
+  };
+
+  sourceRoot = ".";
+
+  buildPhase = ''
+    g++ Pers.cpp -O3 -fpermissive -o perseus
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp perseus $out/bin
+  '';
+
+  meta = {
+    description = "The Persistent Homology Software";
+    longDescription = ''
+      Persistent homology - or simply, persistence - is an algebraic
+      topological invariant of a filtered cell complex. Perseus
+      computes this invariant for a wide class of filtrations built
+      around datasets arising from point samples, images, distance
+      matrices and so forth.
+    '';
+    homepage = "http://www.sas.upenn.edu/~vnanda/perseus/index.html";
+    license = lib.licenses.gpl3;
+    maintainers = with lib.maintainers; [ erikryb ];
+    platforms = lib.platforms.linux;
+  };
+}