| // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This file adds defines about the platform we're currently building on. |
| // Operating System: |
| // OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) |
| // Compiler: |
| // COMPILER_MSVC / COMPILER_GCC |
| // Processor: |
| // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) |
| // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS |
| |
| #ifndef BUILD_BUILD_CONFIG_H_ |
| #define BUILD_BUILD_CONFIG_H_ |
| |
| // A set of macros to use for platform detection. |
| #if defined(__APPLE__) |
| #define OS_MACOSX 1 |
| #elif defined(__linux__) |
| #define OS_LINUX 1 |
| #elif defined(_WIN32) |
| #define OS_WIN 1 |
| #else |
| #error Please add support for your platform in build/build_config.h |
| #endif |
| |
| // For access to standard POSIX features, use OS_POSIX instead of a more |
| // specific macro. |
| #if defined(OS_MACOSX) || defined(OS_LINUX) |
| #define OS_POSIX 1 |
| #endif |
| |
| // Compiler detection. |
| #if defined(__GNUC__) |
| #define COMPILER_GCC 1 |
| #elif defined(_MSC_VER) |
| #define COMPILER_MSVC 1 |
| #else |
| #error Please add support for your compiler in build/build_config.h |
| #endif |
| |
| // Processor architecture detection. For more info on what's defined, see: |
| // http://msdn.microsoft.com/en-us/library/b0084kay.aspx |
| // http://www.agner.org/optimize/calling_conventions.pdf |
| #if defined(_M_X64) || defined(__x86_64__) |
| #define ARCH_CPU_X86_FAMILY 1 |
| #define ARCH_CPU_X86_64 1 |
| #define ARCH_CPU_64_BITS 1 |
| #elif defined(_M_IX86) || defined(__i386__) |
| #define ARCH_CPU_X86_FAMILY 1 |
| #define ARCH_CPU_X86 1 |
| #define ARCH_CPU_32_BITS 1 |
| #else |
| #error Please add support for your architecture in build/build_config.h |
| #endif |
| |
| // Type detection for wchar_t. |
| #if defined(OS_WIN) |
| #define WCHAR_T_IS_UTF16 |
| #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ |
| defined(__WCHAR_MAX__) && __WCHAR_MAX__ == 0x7fffffff |
| #define WCHAR_T_IS_UTF32 |
| #else |
| #error Please add support for your compiler in build/build_config.h |
| #endif |
| |
| #endif // BUILD_BUILD_CONFIG_H_ |