xindy
index generator for structured documents like LaTeX or SGML
RUN apt-get update && \
apt-get install -y xindy
RUN apt-get update && \
apt-get install -y xindy
RUN pacman -S --noconfirm xindy
RUN apt-get update && \
apt-get install -y xindy
RUN dnf install -y xindy
RUN apt-get update && \
apt-get install -y xindy