Experiment with a fix for older versions of Clang.

miniaudio.h

@@ -14905,8 +14905,10 @@ typedef int ma_atomic_memory_order;
     }
     #if defined(__clang__)
         #pragma clang diagnostic push
+        #if __clang_major__ >= 8
             #pragma clang diagnostic ignored "-Watomic-alignment"
         #endif
+    #endif
     static MA_INLINE ma_uint64 ma_atomic_compare_and_swap_64(volatile ma_uint64* dst, ma_uint64 expected, ma_uint64 desired)
     {
         __atomic_compare_exchange_n(dst, &expected, desired, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);