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-rw-r--r--hurd/hurd/threadvar.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/hurd/hurd/threadvar.h b/hurd/hurd/threadvar.h
index 2de619c229..f4068474fd 100644
--- a/hurd/hurd/threadvar.h
+++ b/hurd/hurd/threadvar.h
@@ -109,11 +109,12 @@ __hurd_threadvar_location (enum __hurd_threadvar_index __index)
 
 /* Return the current thread's location for `errno'.
    The syntax of this function allows redeclarations like `int errno'.  */
+extern int *__hurd_errno_location (void);
+
 _HURD_THREADVAR_H_EXTERN_INLINE int *
 __hurd_errno_location (void)
 {
   return (int *) __hurd_threadvar_location (_HURD_THREADVAR_ERRNO);
 }
 
-
 #endif	/* hurd/threadvar.h */