Add versioning information to symbols.
Bug: http://b/28178111
Change-Id: I46bf95accd819f4521afb1173d8badcc5e9df31c
diff --git a/libc/include/sys/vfs.h b/libc/include/sys/vfs.h
index 1fbc8be..9f04b28 100644
--- a/libc/include/sys/vfs.h
+++ b/libc/include/sys/vfs.h
@@ -138,9 +138,9 @@
#define XFS_SUPER_MAGIC 0x58465342
extern int statfs(const char*, struct statfs*) __nonnull((1, 2));
-extern int statfs64(const char*, struct statfs64*) __nonnull((1, 2));
+extern int statfs64(const char*, struct statfs64*) __nonnull((1, 2)) __INTRODUCED_IN(21);
extern int fstatfs(int, struct statfs*) __nonnull((2));
-extern int fstatfs64(int, struct statfs64*) __nonnull((2));
+extern int fstatfs64(int, struct statfs64*) __nonnull((2)) __INTRODUCED_IN(21);
__END_DECLS