/*
 * Copyright (c) 2021 Cisco and/or its affiliates.
 *
 * 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.
 */

#pragma once

/*
 * Extract the "MACINTOSH" flag from the compiler.
 */
#if defined(__APPLE__)
#define UNIX
#define MACINTOSH
#endif

/*
 * Extract the "SUNOS" flag from the compiler.
 */
#if defined(sun)
#define UNIX
#define SUNOS
#endif

/*
 * Extract the "LINUX" flag from compiler.
 */
#ifdef __linux__
#define UNIX
#define LINUX
#endif

/*
 * Extract the "ANDROID" flag from compiler.
 */
#ifdef __ANDROID__
#define UNIX
#define LINUX
#ifndef ANDROID
#define ANDROID
#endif
#endif

/*
 * Extract the "BSD" flag from compiler.
 */
#if defined(BSD) || defined(__FreeBSD__) || defined(__NetBSD__) || \
    defined(__OpenBSD__)
#define OS_BSD
#define UNIX
#endif

/*
 * Extract the "MSDOS" flag from the compiler.
 */
#ifdef __MSDOS__
#define MSDOS
#undef UNIX
#endif

/*
 * Extract the "WINDOWS" flag from the compiler.
 */
#if defined(_Windows) || defined(__WINDOWS__) || defined(__WIN32__) || \
    defined(WIN32) || defined(__WINNT__) || defined(__NT__) ||         \
    defined(_WIN32) || defined(_WIN64)
#define WINDOWS
#ifdef _MSC_VER
#define MSV
#if defined(DEBUG) || defined(DEBUGTRACE)
#ifdef NDEBUG
#undef NDEBUG
#endif
#else
#ifndef NDEBUG
#define NDEBUG
#endif
#endif
#else
#undef MSV
#endif
#undef UNIX
#undef MSDOS
#endif

/*
 * Remove the WINDOWS flag when using MACINTOSH.
 */
#ifdef MACINTOSH
#undef WINDOWS
#endif

/*
 * Assume UNIX if not Windows, Macintosh or MSDOS.
 */
#if !defined(WINDOWS) && !defined(MACINTOSH) && !defined(MSDOS)
#define UNIX
#endif