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-rw-r--r--include/libio.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/libio.h b/include/libio.h
index 6dc8dc8..a3a6518 100644
--- a/include/libio.h
+++ b/include/libio.h
@@ -4,6 +4,9 @@
#define _LIBC_LIBIO_H
libc_hidden_proto (__overflow)
+libc_hidden_proto (__underflow)
libc_hidden_proto (__woverflow)
+libc_hidden_proto (__wunderflow)
+libc_hidden_proto (__wuflow)
#endif