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/version-management/gitstats/default.nix

@@ -0,0 +1,44 @@
+{ lib, stdenv, fetchFromGitHub, perl, python2, gnuplot, coreutils, gnugrep }:
+
+stdenv.mkDerivation rec {
+  pname = "gitstats";
+  version = "2016-01-08";
+
+  # upstream does not make releases
+  src = fetchFromGitHub {
+    owner = "hoxu";
+    repo = "gitstats";
+    rev = "55c5c285558c410bb35ebf421245d320ab9ee9fa";
+    sha256 = "sha256-qUQB3aCRbPkbMoMf39kPQ0vil8RjXL8RqjdTryfkzK0=";
+  };
+
+  nativeBuildInputs = [ perl ];
+
+  buildInputs = [ python2 ];
+
+  strictDeps = true;
+
+  postPatch = ''
+    sed -e "s|gnuplot_cmd = .*|gnuplot_cmd = '${gnuplot}/bin/gnuplot'|" \
+        -e "s|\<wc\>|${coreutils}/bin/wc|g" \
+        -e "s|\<grep\>|${gnugrep}/bin/grep|g" \
+        -i gitstats
+  '';
+
+  buildPhase = ''
+    make man VERSION="${version}"
+  '';
+
+  installPhase = ''
+    make install PREFIX="$out" VERSION="${version}"
+    install -Dm644 doc/gitstats.1 "$out"/share/man/man1/gitstats.1
+  '';
+
+  meta = with lib; {
+    homepage = "http://gitstats.sourceforge.net/";
+    description = "Git history statistics generator";
+    license = licenses.gpl2Plus;
+    platforms = platforms.all;
+    maintainers = [ maintainers.bjornfor ];
+  };
+}