2 dnl Copyright (C) 2002, 2003, 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_MEMRCHR],
9 dnl Persuade glibc <string.h> to declare memrchr().
10 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
12 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
13 AC_CHECK_DECLS_ONCE([memrchr])
14 if test $ac_cv_have_decl_memrchr = no; then
18 AC_REPLACE_FUNCS([memrchr])
19 if test $ac_cv_func_memrchr = no; then
24 # Prerequisites of lib/memrchr.c.
25 AC_DEFUN([gl_PREREQ_MEMRCHR], [:])