I have a simple input file, in utf8:
\documentclass{article}
\usepackage{makeidx}
\makeindex
\begin{document}
Hello World\index{Gödel}\index{Galois}
\index{Álgebra}\index{Índice}
\printindex
\end{document}
when I process with
xelatex file.tex
texindy -L portuguese -M lang/portuguese/utf8 file.idx
I get the entries for Galois and Gödel sorted in proper order, but NOT the entries for Álgebra and Índice.
A
Álgebra, 1
Índice, 1
G
Galois, 1
Gödel, 1
it even places "Í" under the letter "A".
I am aware of this not so similar question here.
I can't really run xindy because of incompatibility with hyperref as pointed here.
Is is possible to get texindy to sort the entries in proper order?
texindy -L danish -C utf8on the.idxfile, the sorting is as I'd expect it A, G and I groups (testest on TL19 on linux) – daleif Nov 20 '19 at 15:42