From f6b6603530590550313a588afebd52ee16abbc93 Mon Sep 17 00:00:00 2001
From: Marcus Holland-Moritz <github@mhxnet.de>
Date: Tue, 23 Jan 2024 15:03:29 +0100
Subject: [PATCH] chore: check for target_clones attribute availability

---
 include/dwarfs/compiler.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/dwarfs/compiler.h b/include/dwarfs/compiler.h
index 96ba4c45..f75def96 100644
--- a/include/dwarfs/compiler.h
+++ b/include/dwarfs/compiler.h
@@ -21,6 +21,10 @@
 
 #pragma once
 
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
 #if defined(__SANITIZE_THREAD__)
 #define DWARFS_SANITIZE_THREAD 1
 #elif defined(__has_feature)
@@ -29,6 +33,7 @@
 #endif
 #endif
 
-#if !defined(DWARFS_SANITIZE_THREAD) && defined(__x86_64__)
+#if !defined(DWARFS_SANITIZE_THREAD) && defined(__x86_64__) &&                 \
+    __has_attribute(target_clones)
 #define DWARFS_MULTIVERSIONING 1
 #endif