From 8be51061eca39a766f5304198dc6f42296232b22 Mon Sep 17 00:00:00 2001
From: Krzysztof Raszkowski <krzysztof.raszkowski@intel.com>
Date: Fri, 30 Aug 2019 05:50:21 +0000
Subject: [PATCH] util: Add unreachable() definition for clang compiler.

Without unreachable() definition clang throw return-type error
in many places in mesa code.

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
---
 src/util/macros.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/macros.h b/src/util/macros.h
index f5f099bb594..55dd80c870b 100644
--- a/src/util/macros.h
+++ b/src/util/macros.h
@@ -72,7 +72,7 @@
  * Unreachable macro. Useful for suppressing "control reaches end of non-void
  * function" warnings.
  */
-#ifdef HAVE___BUILTIN_UNREACHABLE
+#if defined(HAVE___BUILTIN_UNREACHABLE) || __has_builtin(__builtin_unreachable)
 #define unreachable(str)    \
 do {                        \
    assert(!str);            \
-- 
2.30.2