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/data/documentation/anarchism/default.nix

@@ -0,0 +1,43 @@
+{ lib, stdenv, fetchFromGitLab, xdg-utils }:
+
+stdenv.mkDerivation rec {
+  pname = "anarchism";
+  version = "15.3-1";
+
+  src = fetchFromGitLab {
+    domain = "salsa.debian.org";
+    owner = "debian";
+    repo = pname;
+    rev = "debian/${version}";
+    sha256 = "04ylk0y5b3jml2awmyz7m1hnymni8y1n83m0k6ychdh0px8frhm5";
+  };
+
+  postPatch = ''
+    substituteInPlace debian/anarchism.desktop \
+      --replace "/usr/bin/xdg-open" "${xdg-utils}/bin/xdg-open"
+    substituteInPlace debian/anarchism.desktop \
+      --replace "file:///usr" "file://$out"
+  '';
+
+  installPhase = ''
+    mkdir -p $out/share/doc/anarchism $out/share/applications $out/share/icons/hicolor/scalable/apps
+    cp -r {html,markdown} $out/share/doc/anarchism
+    cp debian/anarchism.svg $out/share/icons/hicolor/scalable/apps
+    cp debian/anarchism.desktop $out/share/applications
+  '';
+
+  meta = with lib; {
+    homepage = "http://www.anarchistfaq.org/";
+    changelog = "http://anarchism.pageabode.com/afaq/new.html";
+    description = "Exhaustive exploration of Anarchist theory and practice";
+    longDescription = ''
+      The Anarchist FAQ is an excellent source of information regarding Anarchist
+      (libertarian socialist) theory and practice. It covers all major topics,
+      from the basics of Anarchism to very specific discussions of politics,
+      social organization, and economics.
+    '';
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ davidak ];
+    platforms = with platforms; all;
+  };
+}