Ensure AC_C_RESTRICT is invoked.

[gnulib.git] / m4 / stpcpy.m4

diff --git a/m4/stpcpy.m4 b/m4/stpcpy.m4
index d42196e..c48aa9c 100644 (file)
--- a/m4/stpcpy.m4
+++ b/m4/stpcpy.m4
@@ -1,4 +1,4 @@
-# stpcpy.m4 serial 3
+# stpcpy.m4 serial 4
 dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,6 +9,9 @@ AC_DEFUN([gl_FUNC_STPCPY],
   dnl Persuade glibc <string.h> to declare stpcpy().
   AC_REQUIRE([AC_GNU_SOURCE])
 
+  dnl The stpcpy() declaration in lib/string_.h uses 'restrict'.
+  AC_REQUIRE([AC_C_RESTRICT])
+
   AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_REPLACE_FUNCS(stpcpy)
   if test $ac_cv_func_stpcpy = no; then