1# byteswap.m4 serial 4
2dnl Copyright (C) 2005, 2007, 2009-2020 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
7dnl Written by Oskar Liljeblad.
8
9AC_DEFUN([gl_BYTESWAP],
10[
11  dnl Prerequisites of lib/byteswap.in.h.
12  AC_CHECK_HEADERS([byteswap.h], [
13    BYTESWAP_H=''
14  ], [
15    BYTESWAP_H='byteswap.h'
16  ])
17  AC_SUBST([BYTESWAP_H])
18  AM_CONDITIONAL([GL_GENERATE_BYTESWAP_H], [test -n "$BYTESWAP_H"])
19])
20