diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index a1576238b..24be3b85c 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2014-10-08 Corinna Vinschen  <vinschen@redhat.com>
+
+	* libc/include/string.h (ffsl): Declare as GNU function.
+	(ffsll): Ditto.
+
 2014-09-17  Jeff Johnston  <jjohnstn@redhat.com>
 
 	* libc/include/sys/features.h: Add __NEWLIB__ and
diff --git a/newlib/libc/include/string.h b/newlib/libc/include/string.h
index e577a71bd..8fb3563cc 100644
--- a/newlib/libc/include/string.h
+++ b/newlib/libc/include/string.h
@@ -90,6 +90,11 @@ char 	*_EXFUN(strndup,(const char *, size_t));
 char 	*_EXFUN(_strndup_r,(struct _reent *, const char *, size_t));
 #endif
 
+#if __GNU_VISIBLE
+int	 _EXFUN(ffsl,(long));
+int	 _EXFUN(ffsll, (long long));
+#endif
+
 /* There are two common strerror_r variants.  If you request
    _GNU_SOURCE, you get the GNU version; otherwise you get the POSIX
    version.  POSIX requires that #undef strerror_r will still let you