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/primecount/default.nix

@@ -0,0 +1,51 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, primesieve
+}:
+
+stdenv.mkDerivation rec {
+  pname = "primecount";
+  version = "7.3";
+
+  src = fetchFromGitHub {
+    owner = "kimwalisch";
+    repo = "primecount";
+    rev = "v${version}";
+    hash = "sha256-hxnn1uiGSB6XRC7yK+SXTwTsJfjhemWXsMNhhL7Ghek=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  buildInputs = [ primesieve ];
+
+  cmakeFlags = [
+    "-DBUILD_LIBPRIMESIEVE=ON"
+    "-DBUILD_PRIMECOUNT=ON"
+    "-DBUILD_SHARED_LIBS=ON"
+    "-DBUILD_STATIC_LIBS=OFF"
+    "-DBUILD_TESTS=ON"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/kimwalisch/primecount";
+    description = "Fast prime counting function implementations";
+    longDescription = ''
+      primecount is a command-line program and C/C++ library that counts the
+      primes below an integer x ≤ 10^31 using highly optimized implementations
+      of the combinatorial prime counting algorithms.
+
+      primecount includes implementations of all important combinatorial prime
+      counting algorithms known up to this date all of which have been
+      parallelized using OpenMP. primecount contains the first ever open source
+      implementations of the Deleglise-Rivat algorithm and Xavier Gourdon's
+      algorithm (that works). primecount also features a novel load balancer
+      that is shared amongst all implementations and that scales up to hundreds
+      of CPU cores. primecount has already been used to compute several prime
+      counting function world records.
+    '';
+    license = licenses.bsd2;
+    inherit (primesieve.meta) maintainers platforms;
+  };
+}