From 062c16c17ed7b8c5a7c7b4cb719c98525485eb11 Mon Sep 17 00:00:00 2001
From: =?utf8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
Date: Mon, 22 Sep 2025 20:46:33 +0100
Subject: [PATCH] build: fix build failure with mismatched pclmul

* src/cksum.c (pclmul_supported): In the case where
gnulib has pclmul enabled but coreutils does not,
ensure we don't reference the coreutils pclmul function.
Addresses https://bugs.gnu.org/79491
---
 src/cksum.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cksum.c b/src/cksum.c
index 3e009febd6..fba33f688d 100644
--- a/src/cksum.c
+++ b/src/cksum.c
@@ -152,8 +152,10 @@ pclmul_supported (void)
            (pclmul_enabled
             ? _("using pclmul hardware support")
             : _("pclmul support not detected")));
+#  if USE_PCLMUL_CRC32
   if (pclmul_enabled)
     return cksum_pclmul;
+#  endif
 # endif
 
   return nullptr;
-- 
2.47.3