# Changing endnote mark to roman with babel Greek in TeXLive '17

Essentially, it is the same problem as this question.

I am using footnotes and endnotes together, so I want to change endnotes to roman. The solution given when the question was asked two years ago was to add

\robustify{\textlatin}


to the preamble, so it would look like

\documentclass[10pt,twoside, openright]{book}

\usepackage[greek, english]{babel}
\usepackage{endnotes, etoolbox}

\robustify{\textlatin}
\renewcommand{\theendnote}{\roman{endnote}}

\begin{document}

Once\endnote{Or maybe twice} upon a time $t\ge0\ldots$.

\theendnotes

\end{document}


This works in my TeXLive '15 environment, but doesn't work if I use TeXLive '17.

I get a message

./text.tex:11: Incomplete \iffalse; all text was ignored after line
11. <inserted text>
\fi l.11 Once\endnote{Or maybe twice}
upon a time $t\ge0\ldots$.


Any idea on how can I make it work with TeXLive '17? I use MacTex, macOS 10.13.2.

Robustify also \ensureascii:

\documentclass[10pt,twoside, openright]{book}

\usepackage[greek, english]{babel}
\usepackage{endnotes, etoolbox}

\robustify{\textlatin}
\AtBeginDocument{\robustify{\ensureascii}}
\renewcommand{\theendnote}{\roman{endnote}}

\begin{document}

Once\endnote{Or maybe twice} upon a time $t\ge0\ldots$.

\theendnotes

\end{document}


The \textlatin macro is no longer used in the context of \roman, so probably robustifying it is not needed, but it doesn't harm either.

You can by pass some of the expansion problems by using \romannumeral directly on the counter value

\documentclass[10pt,twoside, openright]{book}

\usepackage[greek,main=english]{babel}
\usepackage{endnotes, etoolbox}

\renewcommand{\theendnote}{\romannumeral\value{endnote}}

\begin{document}

Once\endnote{Or maybe twice} upon a time $t\ge0\ldots$\endnote{Really twice}.

\textgreek{aaabbbccc\endnote{\textgreek{dddeeefff}}}

\theendnotes

\end{document}