Hi, I have fix for armv7 / android / NDK20 atomic store issue. Already tested and it does look fine to me: Old code: #if GCC_VERSION>=4007000 || __has_extension(c_atomic) New code: #if GCC_VERSION>=4007000 || (__has_extension(c_atomic) && __has_extension(__atomic_store_n)) Its just require additional check __atomic_store because atomic can be available but atomic store don't.