From 049e5b0f8768df2c280ae258d6e6221d8ab7fe46 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Mon, 14 Aug 2023 01:45:39 +0200
Subject: [PATCH] build: fix link errors with gcc < 4.8

* configure.ac: Attempt to link, not only compile, the test programs
with __builtin_cpu_supports, to avoid link errors with cksum and wc.
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index afc1098f76..948fb3653e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -521,7 +521,7 @@ ac_c_werror_flag=$cu_save_c_werror_flag
 ac_save_CFLAGS=$CFLAGS
 CFLAGS="-mavx -mpclmul $CFLAGS"
 AC_MSG_CHECKING([if pclmul intrinsic exists])
-AC_COMPILE_IFELSE(
+AC_LINK_IFELSE(
   [AC_LANG_SOURCE([[
     #include <x86intrin.h>
 
@@ -550,7 +550,7 @@ CFLAGS=$ac_save_CFLAGS
 
 CFLAGS="-mavx2 $CFLAGS"
 AC_MSG_CHECKING([if avx2 intrinstics exists])
-AC_COMPILE_IFELSE(
+AC_LINK_IFELSE(
   [AC_LANG_SOURCE([[
     #include <x86intrin.h>
 
-- 
2.47.2