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-rw-r--r--src/os_unix.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/os_unix.c b/src/os_unix.c
index 3fcb0cff2..ddd6a802e 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3386,9 +3386,9 @@ int sqlite3_fullsync_count = 0;
** We do not trust systems to provide a working fdatasync(). Some do.
** Others do no. To be safe, we will stick with the (slightly slower)
** fsync(). If you know that your system does support fdatasync() correctly,
-** then simply compile with -Dfdatasync=fdatasync
+** then simply compile with -Dfdatasync=fdatasync or -DHAVE_FDATASYNC
*/
-#if !defined(fdatasync)
+#if !defined(fdatasync) && !HAVE_FDATASYNC
# define fdatasync fsync
#endif