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-rw-r--r--mysys/my_sync.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mysys/my_sync.c b/mysys/my_sync.c
index d6ca4f1c1df..7acbccec345 100644
--- a/mysys/my_sync.c
+++ b/mysys/my_sync.c
@@ -58,7 +58,7 @@ int my_sync(File fd, myf my_flags)
/* Some file systems don't support F_FULLFSYNC and fail above: */
DBUG_PRINT("info",("fcntl(F_FULLFSYNC) failed, falling back"));
#endif
-#if defined(HAVE_FDATASYNC)
+#if defined(HAVE_FDATASYNC) && HAVE_DECL_FDATASYNC
res= fdatasync(fd);
#elif defined(HAVE_FSYNC)
res= fsync(fd);