\batchmode
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[xindy]{glossaries}
\makeglossaries
% This will fail:
\newglossaryentry{Überlingen}{name={Überlingen},
description={a place}}
\begin{document}
\gls{Überlingen}
\printglossaries
\end{document}