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-rw-r--r--include/fcntl.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/fcntl.h b/include/fcntl.h
index 4d91338b..f6c192f5 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -66,8 +66,10 @@ int posix_fallocate(int, off_t, off_t);
#define POSIX_FADV_RANDOM 1
#define POSIX_FADV_SEQUENTIAL 2
#define POSIX_FADV_WILLNEED 3
+#ifndef POSIX_FADV_DONTNEED
#define POSIX_FADV_DONTNEED 4
#define POSIX_FADV_NOREUSE 5
+#endif
#undef SEEK_SET
#undef SEEK_CUR