1# memrchr.m4 serial 7
2dnl Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_MEMRCHR],
8[
9  dnl Persuade glibc <string.h> to declare memrchr().
10  AC_REQUIRE([AC_GNU_SOURCE])
11
12  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
13  AC_CHECK_DECLS_ONCE([memrchr])
14  if test $ac_cv_have_decl_memrchr = no; then
15    HAVE_DECL_MEMRCHR=0
16  fi
17
18  AC_REPLACE_FUNCS(memrchr)
19  if test $ac_cv_func_memrchr = no; then
20    gl_PREREQ_MEMRCHR
21  fi
22])
23
24# Prerequisites of lib/memrchr.c.
25AC_DEFUN([gl_PREREQ_MEMRCHR], [:])
26