>From bf19526c73eb07080946178390834c2ab8ddfb83 Mon Sep 17 00:00:00 2001
From: Bruno Haible <address@hidden>
Date: Sun, 23 Feb 2020 12:25:42 +0100
Subject: [PATCH 10/29] nstrftime: Use 'restrict'.

* lib/strftime.h (nstrftime): Use 'restrict'.
* m4/nstrftime.m4 (gl_FUNC_GNU_STRFTIME): Require AC_C_RESTRICT.
---
 ChangeLog       | 4 ++++
 lib/strftime.h  | 2 +-
 m4/nstrftime.m4 | 4 +++-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index cf441ae..31cd227 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2020-02-23  Bruno Haible  <address@hidden>
 
+	nstrftime: Use 'restrict'.
+	* lib/strftime.h (nstrftime): Use 'restrict'.
+	* m4/nstrftime.m4 (gl_FUNC_GNU_STRFTIME): Require AC_C_RESTRICT.
+
 	mbstok_r: Use 'restrict'.
 	* lib/string.in.h (mbstok_r): Use 'restrict'.
 
diff --git a/lib/strftime.h b/lib/strftime.h
index 97a062c..e850163 100644
--- a/lib/strftime.h
+++ b/lib/strftime.h
@@ -25,7 +25,7 @@ extern "C" {
    POSIX requires that strftime use the local timezone information.
    Use the timezone __TZ instead.  Use __NS as the number of
    nanoseconds in the %N directive.  */
-size_t nstrftime (char *, size_t, char const *, struct tm const *,
+size_t nstrftime (char *restrict, size_t, char const *, struct tm const *,
                   timezone_t __tz, int __ns);
 
 #ifdef __cplusplus
diff --git a/m4/nstrftime.m4 b/m4/nstrftime.m4
index c15fab3..6f2762a 100644
--- a/m4/nstrftime.m4
+++ b/m4/nstrftime.m4
@@ -1,4 +1,4 @@
-# serial 34
+# serial 35
 
 # Copyright (C) 1996-1997, 1999-2007, 2009-2020 Free Software Foundation, Inc.
 #
@@ -10,6 +10,8 @@
 
 AC_DEFUN([gl_FUNC_GNU_STRFTIME],
 [
+ AC_REQUIRE([AC_C_RESTRICT])
+
  # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
  AC_REQUIRE([AC_STRUCT_TIMEZONE])
 
-- 
2.7.4