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-rw-r--r--include/compiler.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/compiler.h b/include/compiler.h
index ed74c272b8..90b7afae53 100644
--- a/include/compiler.h
+++ b/include/compiler.h
@@ -145,7 +145,9 @@ typedef unsigned long int uintptr_t;
#define unlikely(x) __builtin_expect(!!(x), 0)
#ifdef __LP64__
-#define MEM_SUPPORT_64BIT_DATA
+#define MEM_SUPPORT_64BIT_DATA 1
+#else
+#define MEM_SUPPORT_64BIT_DATA 0
#endif
#endif