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-rw-r--r--wcsmbs/wchar.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index 8702931115..0fd9e35440 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -839,4 +839,9 @@ __END_DECLS
 
 #endif	/* _WCHAR_H defined */
 
+/* Undefined all __need_* constants in case we are included to get those
+   constants but the whole file was already read.  */
+#undef __need_mbstate_t
+#undef __need_wint_t
+
 #endif /* wchar.h  */