From 5d526092fb68a38813b9bea7f5dd27ab91198cf4 Mon Sep 17 00:00:00 2001
From: Edward Diener <eldlistmailingz@tropicsoft.com>
Date: Thu, 23 Apr 2020 13:45:23 -0400
Subject: [PATCH] Addition needed for Embarcarder clang-based compilers.

---
 src/dlmalloc_2_8_6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dlmalloc_2_8_6.c b/src/dlmalloc_2_8_6.c
index 7a53d35..d09464d 100644
--- a/src/dlmalloc_2_8_6.c
+++ b/src/dlmalloc_2_8_6.c
@@ -1515,7 +1515,7 @@ LONG __cdecl _InterlockedExchange(LONG volatile *Target, LONG Value);
 #pragma intrinsic (_InterlockedExchange)
 #define interlockedcompareexchange _InterlockedCompareExchange
 #define interlockedexchange _InterlockedExchange
-#elif defined(WIN32) && defined(__GNUC__)
+#elif defined(WIN32) && (defined(__GNUC__) || defined(__clang__))
 #define interlockedcompareexchange(a, b, c) __sync_val_compare_and_swap(a, c, b)
 #define interlockedexchange __sync_lock_test_and_set
 #endif /* Win32 */