summaryrefslogtreecommitdiff
path: root/m4/memrchr.m4
blob: 06a9b1ee7ec76d1a40ce92f3f084e8e5e54ac88f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
# memrchr.m4 serial 3
dnl Copyright (C) 2002, 2003 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_MEMRCHR],
[
  dnl Persuade glibc <string.h> to declare memrchr().
  AC_REQUIRE([AC_GNU_SOURCE])

  AC_REPLACE_FUNCS(memrchr)
  if test $ac_cv_func_memrchr = no; then
    gl_PREREQ_MEMRCHR
  fi
])

# Prerequisites of lib/memrchr.c.
AC_DEFUN([gl_PREREQ_MEMRCHR], [:])