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-rw-r--r--include/wchar.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/wchar.h b/include/wchar.h
index 86506d28e9..614073bcb3 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -143,6 +143,8 @@ libc_hidden_proto (wmemchr)
 libc_hidden_proto (__wmemchr)
 libc_hidden_proto (wmemset)
 libc_hidden_proto (__wmemset)
+extern int __wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+     __THROW __attribute_pure__;
 
 /* Now define the internal interfaces.  */
 extern int __wcscasecmp (const wchar_t *__s1, const wchar_t *__s2)