From 634a89c7082538e9521a97e5e92126090b68645c Mon Sep 17 00:00:00 2001
From: Thomas Munro <tmunro@postgresql.org>
Date: Sat, 23 Jul 2022 16:54:00 +1200
Subject: Remove configure probe for wctype.h.

This header is present in SUSv2 and Windows.

Also remove the inclusion of <wchar.h>, following clues that it was only
included for the benefit of historical systems that didn't have
<wctype.h>.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CA%2BhUKGKAmTgbg_hMiGG5T7pkpzOnY1cWFAHYtZXHCpqeC_hCkA%40mail.gmail.com
---
 src/backend/utils/adt/formatting.c | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'src/backend/utils/adt/formatting.c')

diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
index e909c1a200c..6f8734a947d 100644
--- a/src/backend/utils/adt/formatting.c
+++ b/src/backend/utils/adt/formatting.c
@@ -69,15 +69,7 @@
 #include <math.h>
 #include <float.h>
 #include <limits.h>
-
-/*
- * towlower() and friends should be in <wctype.h>, but some pre-C99 systems
- * declare them in <wchar.h>, so include that too.
- */
-#include <wchar.h>
-#ifdef HAVE_WCTYPE_H
 #include <wctype.h>
-#endif
 
 #ifdef USE_ICU
 #include <unicode/ustring.h>
-- 
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