[NFC] eliminate macro redefinition errors

Fix the macro redefinition errors showed in https://github.com/alibaba/async_simple/actions/runs/5854786312/job/15871324947.
alibaba · Aug 14, 2023 · 199f52f · 199f52f
1 parent 0ffc686
commit 199f52f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/async_simple/executors/SimpleIOExecutor.h b/async_simple/executors/SimpleIOExecutor.h
@@ -18,7 +18,7 @@
 
 #include "async_simple/IOExecutor.h"
 
-#if not  __has_include(<libaio.h>)
+#if !__has_include(<libaio.h>) && !defined(ASYNC_SIMPLE_HAS_NOT_AIO)
 #define ASYNC_SIMPLE_HAS_NOT_AIO
 #endif