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/http/nix-binary-cache/default.nix

@@ -0,0 +1,60 @@
+{lib, stdenv
+, coreutils, findutils, nix, xz, bzip2, gnused, gnugrep, openssl
+, lighttpd, iproute2 }:
+stdenv.mkDerivation rec {
+  version = "2014-06-29-1";
+  pname = "nix-binary-cache";
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -p "$out/bin"
+    substitute "${./nix-binary-cache.cgi.in}" "$out"/bin/nix-binary-cache.cgi \
+      --replace @out@ "$out/bin" \
+      --replace @shell@ "${stdenv.shell}" \
+      --replace @coreutils@ "${coreutils}/bin" \
+      --replace @findutils@ "${findutils}/bin" \
+      --replace @nix@ "${nix.out}/bin" \
+      --replace @xz@ "${xz.bin}/bin" \
+      --replace @bzip2@ "${bzip2.bin}/bin" \
+      --replace @gnused@ "${gnused}/bin" \
+      --replace @gnugrep@ "${gnugrep}/bin" \
+      --replace @openssl@ "${openssl.bin}/bin" \
+      --replace @lighttpd@ "${lighttpd}/sbin" \
+      --replace @iproute@ "${iproute2}/sbin" \
+      --replace "xXxXx" "xXxXx"
+
+    chmod a+x "$out/bin/nix-binary-cache.cgi"
+
+    substitute "${./nix-binary-cache-start.in}" "$out"/bin/nix-binary-cache-start \
+      --replace @out@ "$out/bin" \
+      --replace @shell@ "${stdenv.shell}" \
+      --replace @coreutils@ "${coreutils}/bin" \
+      --replace @findutils@ "${findutils}/bin" \
+      --replace @nix@ "${nix.out}/bin" \
+      --replace @xz@ "${xz.bin}/bin" \
+      --replace @bzip2@ "${bzip2.bin}/bin" \
+      --replace @gnused@ "${gnused}/bin" \
+      --replace @gnugrep@ "${gnugrep}/bin" \
+      --replace @openssl@ "${openssl.bin}/bin" \
+      --replace @lighttpd@ "${lighttpd}/sbin" \
+      --replace @iproute@ "${iproute2}/sbin" \
+      --replace "xXxXx" "xXxXx"
+
+    chmod a+x "$out/bin/nix-binary-cache-start"
+  '';
+
+  meta = {
+    description = "A set of scripts to serve the Nix store as a binary cache";
+    longDescription = ''
+      This package installs a CGI script that serves Nix store path in the
+      binary cache format. It also installs a launcher called
+      nix-binary-cache-start that can be run without any setup to launch
+      a binary cache and get the example arguments for its usage.
+    '';
+    maintainers = [lib.maintainers.raskin];
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.all;
+    hydraPlatforms = [];
+  };
+}