diff --git a/qemu/tcg/tcg.h b/qemu/tcg/tcg.h
index 0c410e19..fa88c2d1 100644
--- a/qemu/tcg/tcg.h
+++ b/qemu/tcg/tcg.h
@@ -232,11 +232,9 @@ typedef uint64_t tcg_insn_unit;
 
 #if defined CONFIG_DEBUG_TCG || defined QEMU_STATIC_ANALYSIS
 # define tcg_debug_assert(X) do { assert(X); } while (0)
-#elif QEMU_GNUC_PREREQ(4, 5)
+#else
 # define tcg_debug_assert(X) \
     do { if (!(X)) { __builtin_unreachable(); } } while (0)
-#else
-# define tcg_debug_assert(X) do { (void)(X); } while (0)
 #endif
 
 typedef struct TCGRelocation {