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/development/haskell-modules/package-list.nix

@@ -0,0 +1,25 @@
+{ runCommand, haskellPackages, lib, all-cabal-hashes, writeShellScript }:
+let
+  # Checks if the version looks like a Haskell PVP version which is the format
+  # Hackage enforces. This will return false if the version strings is empty or
+  # we've overridden the package to ship an unstable version of the package
+  # (sadly there's no good way to show something useful on hackage in this case).
+  isPvpVersion = v: builtins.match "([0-9]+)(\\.[0-9]+)*" v != null;
+
+  pkgLine = name: pkg:
+    let
+      version = pkg.version or "";
+    in
+    if isPvpVersion version then
+      ''"${name}","${version}","http://hydra.nixos.org/job/nixpkgs/trunk/haskellPackages.${name}.x86_64-linux"''
+    else "";
+  all-haskellPackages = builtins.toFile "all-haskellPackages" (lib.concatStringsSep "\n" (lib.filter (x: x != "") (lib.mapAttrsToList pkgLine haskellPackages)));
+in
+runCommand "hackage-package-list" { }
+  # This command will make a join between all packages on hackage and haskellPackages.*.
+  # It creates a valid csv file which can be uploaded to hackage.haskell.org.
+  # The call is wrapped in echo $(...) to trim trailing newline, which hackage requires.
+  ''
+    mkdir -p $out/bin
+    echo -n "$(tar -t -f ${all-cabal-hashes} | sed 's![^/]*/\([^/]*\)/.*!"\1"!' | sort -u | join -t , - ${all-haskellPackages})" > $out/nixos-hackage-packages.csv
+  ''