Backport UndefinedVariableError fix from master
diff --git a/debian/patches/series b/debian/patches/series
new file mode 100644
index 0000000..a932daa
--- /dev/null
+++ b/debian/patches/series
@@ -0,0 +1 @@
+0001-Fix-UndefinedVariableError-which-had-uh-undefined-va.patch