nixpkgs/pkgs/development/libraries/gdk-pixbuf/setup-hook.sh

findGdkPixbufLoaders() {

	# choose the longest loaders.cache
	local loadersCache="$1/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache"
	if [ -f "$loadersCache" ]; then
		if [ -f "$GDK_PIXBUF_MODULE_FILE" ]; then
			if [ $(cat "$loadersCache"|wc -l) -gt $(cat "$GDK_PIXBUF_MODULE_FILE"|wc -l) ]; then
				export GDK_PIXBUF_MODULE_FILE="$loadersCache"
			fi
		else
			export GDK_PIXBUF_MODULE_FILE="$loadersCache"
		fi
	fi

}

envHooks+=(findGdkPixbufLoaders)