我认为我在 imakeidx、xindy 和 hyperref 的某些组合中遇到了错误，但我不知道是哪一个。以下最小示例生成一个空索引，即使它应该有一个索引条目：
\documentclass{article}
\usepackage[xindy]{imakeidx}
\usepackage{hyperref}
\makeindex
\begin{document}
Text.
\index{A|seealso{B}}
\printindex
\end{document}
它应该有条目“A，另见 B”，但它却生成了一个空索引。如果您删除“hyperref”包或将其移到“imakeidx”之前，它就可以正常工作，但无论哪种情况，其他索引条目都没有链接回 pdf 中的页面。
我在这里做错了什么吗？（显然这只是一个最小的例子，但在实际文档中，我的所有 seealso 条目都消失了，这是一个问题。）如果没有，我应该向哪个软件包报告这个错误？
编辑以添加：日志文件：
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[1
{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}] (./bugtest.ind)
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Here is how much of TeX's memory you used:
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1 words of extra memory for PDF output out of 10000 (max. 10000000)
.idx 文件：
\indexentry{A|hyperindexformat{\seealso{B}}}{1}
.ind 文件：
\begin{theindex}
\providecommand*\lettergroupDefault[1]{}
\providecommand*\lettergroup[1]{%
\par\textbf{#1}\par
\nopagebreak
}
\end{theindex}
答案1
我在这里将答案记录下来，以供后人参考。
tldr：这是 xindy 中的一个已知错误，似乎不太可能修复。
xindy 自 2014 年以来似乎没有得到积极维护。它最初托管在https://sourceforge.net/projects/xindy/ 。这里仍然是大多数 xindy 错误报告的存档位置。此错误记录在https://sourceforge.net/p/xindy/bugs/62/ ，它本身指向 2009 年关于该内容的邮件列表帖子。
xindy 的最新版本 2.5.1 发布在 CTAN 上，似乎是从https://github.com/jschrod/xindy.ctan。有一个修复此错误的拉取请求（https://github.com/jschrod/xindy.ctan/pull/6) 也自 2009 年以来一直如此。
Debian 打包团队维护了一个 Debian 打包分支，网址为https://github.com/debian-tex/xindy。我会看看他们是否愿意应用拉取请求。