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This file is part of Logtalk <https://logtalk.org/>  
Copyright 1998-2023 Paulo Moura <pmoura@logtalk.org>  
SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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To load this example and for sample queries, please see the `SCRIPT.txt` file.

This folder used to contain an example of using conditional compilation to
implement a portable operating-system interface for the supported backend
Prolog compilers. Those resources have been moved as per Logtalk release
3.00.0 Alpha 34 to the library directory. This example is kept, however,
to maintain compatibility with existing applications that use this portable
operating-system interface and to hold for now a set of unit tests.

But this folder still contains a `plain.lgt` file for testing the conditional
compilation directives independently of any libraries.
