2 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2011 Free Software Foundation,
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 AC_DEFUN([gl_FUNC_STRNLEN],
10 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
12 dnl Persuade glibc <string.h> to declare strnlen().
13 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
15 AC_CHECK_DECLS_ONCE([strnlen])
16 if test $ac_cv_have_decl_strnlen = no; then
20 dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]).
21 if test $ac_cv_func_strnlen_working = no; then
25 if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then
31 # Prerequisites of lib/strnlen.c.
32 AC_DEFUN([gl_PREREQ_STRNLEN], [:])