From c8a2d99909f8427eef6849dad22ea598acd47390 Mon Sep 17 00:00:00 2001
From: Karl Williamson <khw@cpan.org>
Date: Mon, 12 Apr 2021 05:10:37 -0600
Subject: [PATCH] t/loc_tools.pl: Don't allow commas in locale names

This was a problem in some buggy Windows versions.  This addition keeps
locales with this bug from being tested.
---
 t/loc_tools.pl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/t/loc_tools.pl b/t/loc_tools.pl
index 0fcffdcd48c0..3017c90fefb9 100644
--- a/t/loc_tools.pl
+++ b/t/loc_tools.pl
@@ -187,6 +187,11 @@ ($$$$)
             return;
         }
 
+        # Commas in locale names are bad in Windows, and there is a bug in
+        # some versions where setlocale() turns a legal input locale name into
+        # an illegal return value, which it can't later parse.
+        return if $result =~ /,/;
+
         return unless $plays_well || $allow_incompatible;
     }