From 99c45d35ad5f9f5d00f3230b167faa611503c279 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Fri, 3 Jul 2026 13:17:00 -0500
Subject: [PATCH] Fix compatibility with GCC versions that lack __has_builtin()

---
 src/Platform.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Platform.h b/src/Platform.h
index 2292b38..f219864 100644
--- a/src/Platform.h
+++ b/src/Platform.h
@@ -132,7 +132,11 @@
 #define LC_ASSERT_VT(x) LC_ASSERT(x)
 #endif
 
-#if defined(__has_builtin) && __has_builtin(__builtin_bswap16)
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+#if __has_builtin(__builtin_bswap16)
 #define LC_HAS_BUILTIN_BSWAP
 #endif