From b300db55f6452ae947e39c08d57db23934cf02f0 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Tue, 5 Nov 2024 15:41:57 +0100
Subject: [PATCH] BUILD: compiler: define __builtin_prefetch() for tcc

We're using a few occurrences of __builtin_prefetch() but tcc doesn't
know about it so let's give it a dummy definition. Now the code builds
and works again with tcc without thread support.
---
 include/haproxy/compiler.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/haproxy/compiler.h b/include/haproxy/compiler.h
index d8e8a7235b..ba4b12ddca 100644
--- a/include/haproxy/compiler.h
+++ b/include/haproxy/compiler.h
@@ -264,6 +264,11 @@
 #endif
 #endif
 
+/* Define the missing __builtin_prefetch() for tcc. */
+#if defined(__TINYC__)
+#define __builtin_prefetch(addr, ...) do { } while (0)
+#endif
+
 #ifndef __GNUC_PREREQ__
 #if defined(__GNUC__) && !defined(__INTEL_COMPILER)
 #define __GNUC_PREREQ__(ma, mi) \
-- 
2.47.2