aix - reference to 'thread' is ambiguous, sys/thread.h vs std::thread

bench/async_bench.cpp

@@ -162,7 +162,7 @@ void thread_fun(std::shared_ptr<spdlog::logger> logger, int howmany)
 void bench_mt(int howmany, std::shared_ptr<spdlog::logger> logger, int thread_count)
 {
     using std::chrono::high_resolution_clock;
-    vector<thread> threads;
+    vector<std::thread> threads;
     auto start = high_resolution_clock::now();
 
     int msgs_per_thread = howmany / thread_count;