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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 3e978520a7..51144696ca 100644
--- a/string/string.h
+++ b/string/string.h
@@ -232,6 +232,7 @@ extern char *rindex __P ((__const char *__s, int __c));
 
 /* Return the position of the first bit set in I, or 0 if none are set.
    The least-significant bit is position 1, the most-significant 32.  */
+extern int __ffs __P ((int __i));
 extern int ffs __P ((int __i));
 
 /* Compare S1 and S2, ignoring case.  */