From a028ef47353b03177aab3facb4b2b74f7c3823e2 Mon Sep 17 00:00:00 2001
From: Gavin Smith <gavinsmith0123@gmail.com>
Date: Fri, 13 Jul 2018 15:39:29 +0000
Subject: [PATCH] perl 5.28 thread-safe locales

git-svn-id: svn://127.0.0.1/svn_repo/texinfo/trunk@8008 39fee189-59d7-47db-b5d4-205258b72aed

diff --git a/tp/Texinfo/Convert/XSParagraph/xspara.c b/tp/Texinfo/Convert/XSParagraph/xspara.c
index 51eea4a30..f2d6d1ccd 100644
--- a/tp/Texinfo/Convert/XSParagraph/xspara.c
+++ b/tp/Texinfo/Convert/XSParagraph/xspara.c
@@ -248,6 +248,11 @@ xspara_init (void)
 
   dTHX;
 
+#if PERL_VERSION > 27 || (PERL_VERSION == 27 && PERL_SUBVERSION > 8)
+  /* needed due to thread-safe locale handling in newer perls */
+  switch_to_global_locale();
+#endif
+
   if (setlocale (LC_CTYPE, "en_US.UTF-8")
       || setlocale (LC_CTYPE, "en_US.utf8"))
     goto success;
@@ -320,6 +325,10 @@ failure:
     {
 success: ;
       free (utf8_locale);
+#if PERL_VERSION > 27 || (PERL_VERSION == 27 && PERL_SUBVERSION > 8)
+      /* needed due to thread-safe locale handling in newer perls */
+      sync_locale();
+#endif
       /*
       fprintf (stderr, "tried to set LC_CTYPE to UTF-8.\n");
       fprintf (stderr, "character encoding is: %s\n",
-- 
2.20.1