6.1 Using an External Indexing Application
This section describes how to create indexes (§6.1.1. Creating an Index (makeidx package)) or glossaries (§6.1.2. Creating Glossaries, Lists of Symbols or Acronyms (glossaries package)) using an external indexing application. There are two popular indexing applications: makeindex and xindy. All TeX distributions should come with makeindex. The TeX Live distribution also comes with xindy, but if you have a different TeX distribution (such as MikTeX) you may need to fetch xindy from http://www.xindy.org/.
Note:
You must have Perl installed in order to use xindy as it's a Perl script. (See Perl from Volume 1.) If you have successfully been using latexmk, you already have Perl installed.
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