>From b9eae96869cc9cef3865505ab8dc356196f241e9 Mon Sep 17 00:00:00 2001
From: Bruno Haible <address@hidden>
Date: Sun, 23 Feb 2020 12:06:29 +0100
Subject: [PATCH 02/29] astrxfrm: Use 'restrict'.

* lib/astrxfrm.h (astrxfrm): Use 'restrict'.
* modules/astrxfrm (configure.ac): Require AC_C_RESTRICT.
---
 ChangeLog        | 4 ++++
 lib/astrxfrm.h   | 3 ++-
 modules/astrxfrm | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 563d770..80a90eb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2020-02-23  Bruno Haible  <address@hidden>
 
+	astrxfrm: Use 'restrict'.
+	* lib/astrxfrm.h (astrxfrm): Use 'restrict'.
+	* modules/astrxfrm (configure.ac): Require AC_C_RESTRICT.
+
 	amemxfrm: Use 'restrict'.
 	* lib/amemxfrm.h (amemxfrm): Use 'restrict'.
 	* modules/amemxfrm (configure.ac): Require AC_C_RESTRICT.
diff --git a/lib/astrxfrm.h b/lib/astrxfrm.h
index a23ed70..211fe3b 100644
--- a/lib/astrxfrm.h
+++ b/lib/astrxfrm.h
@@ -37,7 +37,8 @@ extern "C" {
    freshly allocated string is returned.  In both cases, *lengthp is set to the
    length of the returned string.
    Upon failure, return NULL, with errno set.  */
-extern char * astrxfrm (const char *s, char *resultbuf, size_t *lengthp);
+extern char * astrxfrm (const char *s,
+                        char *restrict resultbuf, size_t *lengthp);
 
 
 #ifdef __cplusplus
diff --git a/modules/astrxfrm b/modules/astrxfrm
index e2edc42..0533403 100644
--- a/modules/astrxfrm
+++ b/modules/astrxfrm
@@ -8,6 +8,7 @@ lib/astrxfrm.c
 Depends-on:
 
 configure.ac:
+AC_REQUIRE([AC_C_RESTRICT])
 
 Makefile.am:
 lib_SOURCES += astrxfrm.c
-- 
2.7.4