git.m6w6.name Git - m6w6/libmemcached/blob - m4/ax_endian.m4

   1 # https://github.com/BrianAker/ddm4
   2 # ===========================================================================
   3 #
   4 # SYNOPSIS
   5 #
   6 #   AX_ENDIAN()
   7 #
   8 # DESCRIPTION
   9 #
  10 #   Generate to defines describing endian.
  11 #
  12 # LICENSE
  13 #
  14 #   Copyright (c) 2012 Brian Aker <brian@tangent.org>
  15 #
  16 #   Copying and distribution of this file, with or without modification, are
  17 #   permitted in any medium without royalty provided the copyright notice
  18 #   and this notice are preserved. This file is offered as-is, without any
  19 #   warranty.
  20
  21 #serial 1
  22
  23 AC_DEFUN([AX_ENDIAN],[
  24     AC_C_BIGENDIAN([
  25       AC_DEFINE([WORDS_BIGENDIAN],[1],[machine is big-endian])
  26       AC_DEFINE([ENDIAN_BIG],[1],[machine is big-endian])
  27       AC_DEFINE([ENDIAN_LITTLE],[0],[machine is little-endian])],[
  28       ],[
  29       AC_DEFINE([WORDS_BIGENDIAN],[0],[machine is big-endian])
  30       AC_DEFINE([ENDIAN_BIG],[0],[machine is big-endian])
  31       AC_DEFINE([ENDIAN_LITTLE],[1],[machine is little-endian])
  32       ],[
  33       AC_MSG_ERROR([unable to determine endian])
  34       ])
  35     ])