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-rw-r--r--string/string.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/string/string.h b/string/string.h
index ff6d3df21e..79a7aaa58d 100644
--- a/string/string.h
+++ b/string/string.h
@@ -174,6 +174,7 @@ extern char *strerror __P ((int __errnum));
 #ifdef	__USE_REENTRANT
 /* Reentrant version of `strerror'.  If a temporary buffer is required, at
    most BUFLEN bytes of BUF will be used.  */
+extern char *__strerror_r __P ((int __errnum, char *__buf, size_t __buflen));
 extern char *strerror_r __P ((int __errnum, char *__buf, size_t __buflen));
 #endif