third_party/WebKit/Source/config.h

   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 #else
  91 #define WTF_USE_ICCJPEG 1
  92 #define WTF_USE_QCMSLIB 1
  93 #endif
  94
  95 #if OS(MACOSX)
  96 #define WTF_USE_CF 1
  97 #endif /* OS(MACOSX) */
  98
  99 #if OS(POSIX)
 100 #define HAVE_SIGNAL_H 1
 101 #define HAVE_SYS_TIME_H 1
 102 #define WTF_USE_PTHREADS 1
 103 #endif /* OS(POSIX) */
 104
 105 #if !OS(WIN) && !OS(ANDROID)
 106 #define HAVE_TM_GMTOFF 1
 107 #define HAVE_TM_ZONE 1
 108 #define HAVE_TIMEGM 1
 109 #endif
 110
 111 #if OS(MACOSX)
 112 #define WTF_USE_NEW_THEME 1
 113 #endif /* OS(MACOSX) */
 114
 115 #if OS(WIN)
 116
 117 // If we don't define these, they get defined in windef.h.
 118 // We want to use std::min and std::max.
 119 #ifndef max
 120 #define max max
 121 #endif
 122 #ifndef min
 123 #define min min
 124 #endif
 125
 126 #endif /* OS(WIN) */
 127
 128 #ifdef __cplusplus
 129
 130 // These undefs match up with defines in build/mac/Prefix.h for Mac OS X.
 131 // Helps us catch if anyone uses new or delete by accident in code and doesn't include "config.h".
 132 #undef new
 133 #undef delete
 134 #include <ciso646>
 135 #include <cstddef>
 136
 137 #endif