| 1 | # byteswap.m4 serial 4 |
| 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. |
| 6 | |
| 7 | dnl Written by Oskar Liljeblad. |
| 8 | |
| 9 | AC_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 | ]) |