Handle when O_DIRECT is not available

diff --git a/debug/sorter/radix-asio-test.c b/debug/sorter/radix-asio-test.c
index 168f6ff6b4f0b982a3cb2ce434ee2c6bd5989aae..a108ed0ca6c9ccf0b7440698ab86c171f9b56b95 100644 (file)
--- a/debug/sorter/radix-asio-test.c
+++ b/debug/sorter/radix-asio-test.c
@@ -16,7 +16,11 @@
 #include <unistd.h>
 
 #define COPY
+#ifdef O_DIRECT
 #define DIRECT O_DIRECT
+#else
+#define DIRECT 0       // Direct IO not supported, fallback to normal mode
+#endif
 
 static timestamp_t timer;