From b90ec2dc463a134c7d3438c3b9b478fb0a6c5c94 Mon Sep 17 00:00:00 2001
From: Patrick J. Volkerding <volkerdi@slackware.com>
Date: Wed Jun 27 18:53:13 UTC 2018
Subject: [PATCH] Fix hang when locale is not UTF-8

This issue seems to have been exposed by the recent upgrade to perl-5.28.
If the system supports UTF-8 in general, but makeinfo is called using a
non-UTF-8 locale (and in this case, glibc calls it with LANG=C), then
makeinfo will get into an infinite loop and hang. We'll work around this
by removing the request for UTF-8 in the affected document.

An alternate fix would be to call makeinfo like this instead:

LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8 makeinfo [...]

--- ./manual/libc.texinfo.orig	2018-02-01 10:17:18.000000000 -0600
+++ ./manual/libc.texinfo	2018-06-27 13:34:48.901560769 -0500
@@ -2,7 +2,6 @@
 @comment %**start of header (This is for running Texinfo on a region.)
 @setfilename libc.info
 @settitle The GNU C Library
-@documentencoding UTF-8
 @c '@codequotebacktick on' and '@codequoteundirected on' require
 @c Texinfo 5.0 or later, so use the older equivalent @set variables
 @c supported in Texinfo 4.11 and later.