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/libraries/audio/libopenmpt/update.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p common-updater-scripts curl xmlstarlet
+
+attr=libopenmpt
+
+set -eu -o pipefail
+
+# Get update notifications, remove updates for libopenmpt-modplug, find latest eligible & extract versions
+versions="$(
+  curl -s 'https://lib.openmpt.org/libopenmpt/feed.xml' |
+  xmlstarlet sel -N atom="http://www.w3.org/2005/Atom" -t -m /atom:feed/atom:entry -v atom:title -n |
+  grep -v 'libopenmpt-modplug' | head -n1 |
+  grep -Eo '([0-9][^,\s]+)' | tr '\n' ' '
+)"
+echo "Latest $attr versions: $versions"
+
+# Find a version that is > current version and not a rc
+# rc's have different download path and a full release will usually follow shortly
+currentVersion="$(nix-instantiate --eval -E "with import ./. {}; $attr.version" | tr -d '"')"
+echo "Current $attr version: $currentVersion"
+for version in $versions; do
+  (echo "$version" | grep -q 'rc') && continue
+  [ "$version" = "$(printf '%s\n%s' "$version" "$currentVersion" | sort -V | head -n1)" ] && continue
+
+  echo "Updating to $version. Please check if other versions qualify for backport to stable!"
+  update-source-version "$attr" "$version"
+  exit 0
+done
+
+echo "No version eligible for bump."
+exit 0