+
+# old location:
+# http://www.kernel.org/pub/linux/kernel/people/gregkh/bti/bti-(.+)\.tar\.gz
+
+# the github redirector:
+# http://githubredir.debian.net/github/gregkh/bti/ .*/(\d{3})\.tar\.gz
+
+# github directly:
+https://github.com/gregkh/bti/tags .*/(\d{3})\.tar\.gz