| #--------------------------------------------------------------------------- | |
| # | |
| # xc-am-iface.m4 | |
| # | |
| # Copyright (C) Daniel Stenberg, <[email protected]> | |
| # | |
| # Permission to use, copy, modify, and distribute this software for any | |
| # purpose with or without fee is hereby granted, provided that the above | |
| # copyright notice and this permission notice appear in all copies. | |
| # | |
| # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| # | |
| # SPDX-License-Identifier: ISC | |
| # | |
| #--------------------------------------------------------------------------- | |
| # serial 1 | |
| dnl _XC_AUTOMAKE_BODY | |
| dnl ------------------------------------------------- | |
| dnl Private macro. | |
| dnl | |
| dnl This macro performs embedding of automake initialization | |
| dnl code into configure script. When automake version 1.14 or | |
| dnl newer is used at configure script generation time, this | |
| dnl results in 'subdir-objects' automake option being used. | |
| dnl When using automake versions older than 1.14 this option | |
| dnl is not used when generating configure script. | |
| dnl | |
| dnl Existence of automake _AM_PROG_CC_C_O m4 private macro | |
| dnl is used to differentiate automake version 1.14 from older | |
| dnl ones which lack this macro. | |
| m4_define([_XC_AUTOMAKE_BODY], | |
| [dnl | |
| ## --------------------------------------- ## | |
| ## Start of automake initialization code ## | |
| ## --------------------------------------- ## | |
| m4_ifdef([_AM_PROG_CC_C_O], | |
| [ | |
| AM_INIT_AUTOMAKE([subdir-objects]) | |
| ],[ | |
| AM_INIT_AUTOMAKE | |
| ])dnl | |
| ## ------------------------------------- ## | |
| ## End of automake initialization code ## | |
| ## ------------------------------------- ## | |
| dnl | |
| m4_define([$0], [])[]dnl | |
| ]) | |
| dnl XC_AUTOMAKE | |
| dnl ------------------------------------------------- | |
| dnl Public macro. | |
| dnl | |
| dnl This macro embeds automake machinery into configure | |
| dnl script regardless of automake version used in order | |
| dnl to generate configure script. | |
| dnl | |
| dnl When using automake version 1.14 or newer, automake | |
| dnl initialization option 'subdir-objects' is used to | |
| dnl generate the configure script, otherwise this option | |
| dnl is not used. | |
| AC_DEFUN([XC_AUTOMAKE], | |
| [dnl | |
| AC_PREREQ([2.50])dnl | |
| dnl | |
| AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl | |
| dnl | |
| _XC_AUTOMAKE_BODY | |
| dnl | |
| m4_ifdef([AM_INIT_AUTOMAKE], | |
| [m4_undefine([AM_INIT_AUTOMAKE])])dnl | |
| dnl | |
| m4_define([$0], [])[]dnl | |
| ]) | |