2 dnl Copyright (C) 2005, 2007, 2009-2013 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 dnl Written by Oskar Liljeblad.
9 AC_DEFUN([gl_BYTESWAP],
11 dnl Prerequisites of lib/byteswap.in.h.
12 AC_CHECK_HEADERS([byteswap.h], [
15 BYTESWAP_H='byteswap.h'
17 AC_SUBST([BYTESWAP_H])
18 AM_CONDITIONAL([GL_GENERATE_BYTESWAP_H], [test -n "$BYTESWAP_H"])