1/*
2 * Copyright (C) 2004, 2005, 2006, 2013 Apple Inc.
3 * Copyright (C) 2009 Google Inc. All rights reserved.
4 * Copyright (C) 2007-2009 Torch Mobile, Inc.
5 * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB.  If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 *
22 */
23
24/* Include compiler specific macros */
25#include "wtf/Compiler.h"
26
27#if COMPILER(MSVC)
28#define _USE_MATH_DEFINES // Make math.h behave like other platforms.
29#endif
30
31/* ==== Platform adaptation macros: these describe properties of the target environment. ==== */
32
33/* HAVE() - specific system features (headers, functions or similar) that are present or not */
34#define HAVE(WTF_FEATURE) (defined HAVE_##WTF_FEATURE  && HAVE_##WTF_FEATURE)
35/* OS() - underlying operating system; only to be used for mandated low-level services like
36   virtual memory, not to choose a GUI toolkit */
37#define OS(WTF_FEATURE) (defined WTF_OS_##WTF_FEATURE  && WTF_OS_##WTF_FEATURE)
38
39/* ==== Policy decision macros: these define policy choices for a particular port. ==== */
40
41/* USE() - use a particular third-party library or optional OS service */
42#define USE(WTF_FEATURE) (defined WTF_USE_##WTF_FEATURE  && WTF_USE_##WTF_FEATURE)
43/* ENABLE() - turn on a specific feature of WebKit */
44#define ENABLE(WTF_FEATURE) (defined ENABLE_##WTF_FEATURE  && ENABLE_##WTF_FEATURE)
45
46/* ==== OS() - underlying operating system; only to be used for mandated low-level services like
47   virtual memory, not to choose a GUI toolkit ==== */
48
49/* OS(ANDROID) - Android */
50#ifdef ANDROID
51#define WTF_OS_ANDROID 1
52/* OS(MACOSX) - Any Darwin-based OS, including Mac OS X and iPhone OS */
53#elif defined(__APPLE__)
54#define WTF_OS_MACOSX 1
55/* OS(FREEBSD) - FreeBSD */
56#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
57#define WTF_OS_FREEBSD 1
58/* OS(LINUX) - Linux */
59#elif defined(__linux__)
60#define WTF_OS_LINUX 1
61/* OS(OPENBSD) - OpenBSD */
62#elif defined(__OpenBSD__)
63#define WTF_OS_OPENBSD 1
64/* OS(WIN) - Any version of Windows */
65#elif defined(WIN32) || defined(_WIN32)
66#define WTF_OS_WIN 1
67#endif
68
69/* OS(POSIX) - Any Unix-like system */
70#if OS(ANDROID)          \
71    || OS(MACOSX)           \
72    || OS(FREEBSD)          \
73    || OS(LINUX)            \
74    || OS(OPENBSD)          \
75    || defined(unix)        \
76    || defined(__unix)      \
77    || defined(__unix__)
78#define WTF_OS_POSIX 1
79#endif
80
81/* There is an assumption in the project that either OS(WIN) or OS(POSIX) is set. */
82#if !OS(WIN) && !OS(POSIX)
83#error Either OS(WIN) or OS(POSIX) needs to be set.
84#endif
85
86/* Operating environments */
87
88#if OS(ANDROID)
89#define WTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION 1
90#define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_DITHERING 1
91#define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_FANCY_UPSAMPLING 1
92#else
93#define WTF_USE_ICCJPEG 1
94#define WTF_USE_QCMSLIB 1
95#endif
96
97#if OS(MACOSX)
98#define WTF_USE_CF 1
99#define WTF_USE_RUBBER_BANDING 1
100#endif /* OS(MACOSX) */
101
102#if OS(POSIX)
103#define HAVE_SIGNAL_H 1
104#define HAVE_SYS_TIME_H 1
105#define WTF_USE_PTHREADS 1
106#endif /* OS(POSIX) */
107
108#if !OS(WIN) && !OS(ANDROID)
109#define HAVE_TM_GMTOFF 1
110#define HAVE_TM_ZONE 1
111#define HAVE_TIMEGM 1
112#endif
113
114#if OS(MACOSX)
115#define WTF_USE_NEW_THEME 1
116#endif /* OS(MACOSX) */
117
118#if OS(WIN)
119
120// If we don't define these, they get defined in windef.h.
121// We want to use std::min and std::max.
122#ifndef max
123#define max max
124#endif
125#ifndef min
126#define min min
127#endif
128
129#endif /* OS(WIN) */
130
131#ifdef __cplusplus
132
133// These undefs match up with defines in build/mac/Prefix.h for Mac OS X.
134// Helps us catch if anyone uses new or delete by accident in code and doesn't include "config.h".
135#undef new
136#undef delete
137#include <ciso646>
138#include <cstddef>
139
140#endif
141