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/servers/search/sphinxsearch/default.nix

@@ -0,0 +1,49 @@
+{ lib, stdenv, fetchurl, pkg-config, expat, libmysqlclient,
+  enableXmlpipe2 ? false,
+  enableMysql ? true
+}:
+
+stdenv.mkDerivation rec {
+  pname = "sphinxsearch";
+  version = "2.2.11";
+
+  src = fetchurl {
+    url = "http://sphinxsearch.com/files/sphinx-${version}-release.tar.gz";
+    sha256 = "1aa1mh32y019j8s3sjzn4vwi0xn83dwgl685jnbgh51k16gh6qk6";
+  };
+
+  enableParallelBuilding = true;
+
+  configureFlags = [
+    "--program-prefix=sphinxsearch-"
+    "--enable-id64"
+  ] ++ lib.optionals (!enableMysql) [
+    "--without-mysql"
+  ];
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = lib.optionals enableMysql [
+    libmysqlclient
+  ] ++ lib.optionals enableXmlpipe2 [
+    expat
+  ];
+
+  CXXFLAGS = with lib; concatStringsSep " " (optionals stdenv.isDarwin [
+    # see upstream bug: http://sphinxsearch.com/bugs/view.php?id=2578
+    # workaround for "error: invalid suffix on literal
+    "-Wno-reserved-user-defined-literal"
+    # workaround for "error: non-constant-expression cannot be narrowed from type 'long' to 'int'"
+    "-Wno-c++11-narrowing"
+  ]);
+
+  meta = {
+    description = "An open source full text search server";
+    homepage    = "http://sphinxsearch.com";
+    license     = lib.licenses.gpl2;
+    platforms   = lib.platforms.all;
+    maintainers = with lib.maintainers; [ ederoyd46 valodim ];
+  };
+}