-# strnlen.m4 serial 3
-dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# strnlen.m4 serial 9
+dnl Copyright (C) 2002-2003, 2005-2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_STRNLEN],
[
dnl Persuade glibc <string.h> to declare strnlen().
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+ AC_CHECK_DECLS_ONCE([strnlen])
+ if test $ac_cv_have_decl_strnlen = no; then
+ HAVE_DECL_STRNLEN=0
+ fi
AC_FUNC_STRNLEN
if test $ac_cv_func_strnlen_working = no; then
- # This is necessary because automake-1.6.1 doens't understand
+ # This is necessary because automake-1.6.1 doesn't understand
# that the above use of AC_FUNC_STRNLEN means we may have to use
# lib/strnlen.c.
#AC_LIBOBJ(strnlen)