From 6814389449d1c1ad794d7658dff3055dd0ab7b10 Mon Sep 17 00:00:00 2001
From: Jeff Davis <jeff@j-davis.com>
Date: Mon, 27 Oct 2025 16:23:14 -0700
Subject: [PATCH v7 6/9] Avoid global LC_CTYPE dependency in ltree/crc32.c.

Use char_tolower() instead of tolower().
---
 contrib/ltree/crc32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/ltree/crc32.c b/contrib/ltree/crc32.c
index 134f46a805e..5969f75c158 100644
--- a/contrib/ltree/crc32.c
+++ b/contrib/ltree/crc32.c
@@ -12,7 +12,7 @@
 
 #ifdef LOWER_NODE
 #include <ctype.h>
-#define TOLOWER(x)	tolower((unsigned char) (x))
+#define TOLOWER(x)	char_tolower((unsigned char) (x), NULL)
 #else
 #define TOLOWER(x)	(x)
 #endif
-- 
2.43.0