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-rw-r--r--include/my_sys.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/my_sys.h b/include/my_sys.h
index 72d4bec74b1..9cce13e53dd 100644
--- a/include/my_sys.h
+++ b/include/my_sys.h
@@ -811,7 +811,8 @@ my_bool my_gethwaddr(uchar *to);
/* not a complete set of mmap() flags, but only those that nesessary */
#define PROT_READ 1
#define PROT_WRITE 2
-#define MAP_NOSYNC 0x800
+#define MAP_SHARED 0x0001
+#define MAP_NOSYNC 0x0800
#define MAP_FAILED ((void *)-1)
#define MS_SYNC 0x0000