nana/include/nana/config.hpp
2016-01-02 16:52:31 +08:00

221 lines
6.6 KiB
C++

/**
* Nana Configuration
* Nana C++ Library(http://www.nanapro.org)
* Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* @file nana/config.hpp
*
* @brief Provide switches to adapt to the target OS, use of external libraries or workarounds compiler errors or lack of std C++ support.
*
* To control target OS/compiler:
* - NANA_WINDOWS
* - NANA_MINGW
* - NANA_POSIX
* - NANA_LINUX
* - NANA_MACOS
* - NANA_X11
* - NANA_UNICODE
*
* External libraries:
* - NANA_LIBPNG, USE_LIBPNG_FROM_OS
* - NANA_LIBJPEG, USE_LIBJPEG_FROM_OS
*
* (see: Feature-testing recommendations for C++
* in http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0096r0.html
* for example: __cpp_lib_experimental_filesystem = 201406 in <experimental/filesystem)
*
* Workaround to known compiler errors, unnecessary warnings or lack of C++11/14/17 support:
* - _SCL_SECURE_NO_WARNNGS, _CRT_SECURE_NO_DEPRECATE (VC)
* - STD_CODECVT_NOT_SUPPORTED (VC RC, <codecvt> is a known issue on libstdc++, it works on libc++)
* - STD_THREAD_NOT_SUPPORTED (GCC < 4.8.1)
* - STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED (MinGW with GCC < 4.8.1)
* - USE_github_com_meganz_mingw_std_threads (MinGW with GCC < 4.8.1)
* - STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED (MinGW with GCC < 4.8.1)
* - STD_TO_STRING_NOT_SUPPORTED (MinGW with GCC < 4.8)
* - VERBOSE_PREPROCESSOR, STOP_VERBOSE_PREPROCESSOR
* - STD_make_unique_NOT_SUPPORTED (MinGW with GCC < 4.8.1)
* or __cpp_lib_make_unique
* http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0096r0.html#detail.cpp14.n3656
*/
#ifndef NANA_CONFIG_HPP
#define NANA_CONFIG_HPP
// Select platform ......
// Windows:
#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
#define NANA_WINDOWS
// MINGW ...
#if defined(__MINGW32__) || defined(__MINGW64__) || defined(MINGW)
#define NANA_MINGW
#endif // MINGW
// end Windows
// MacOS: who define APPLE ??
//#define APPLE
#elif defined(APPLE)
#define NANA_MACOS
#define NANA_X11
// how to add this: include_directories(/opt/X11/include/)
// end MacOS
// Linux: (not sure about __GNU__ ??)
#elif (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC)
#define NANA_LINUX
#define NANA_X11
// end Linux
#else
# static_assert(false, "Only Windows and Unix are supported now (Mac OS is experimental)");
#endif // Select platform
#if defined(NANA_LINUX) || defined(NANA_MACOS)
#define NANA_POSIX
#undef NANA_WINDOWS
#endif
// End Select platform ......
// compilers ...
// MSVC++ versions
#if defined(_MSC_VER)
#define _SCL_SECURE_NO_WARNNGS
#define _CRT_SECURE_NO_DEPRECATE
#pragma warning(disable : 4996)
#if (_MSC_VER == 1900)
// google: break any code that tries to use codecvt<char16_t> or codecvt<char32_t>.
// google: It appears the C++ libs haven't been compiled with native char16_t/char32_t support.
// google: Those definitions are for codecvt<wchar_t>::id, codecvt<unsigned short>::id and codecvt<char>::id respectively.
// However, the codecvt<char16_t>::id and codecvt<char32_t>::id definitions aren't there, and indeed, if you look at locale0.cpp in the CRT source code you'll see they're not defined at all.
// google: That's a known issue, tracked by an active bug (DevDiv#1060849). We were able to update the STL's headers in response to char16_t/char32_t, but we still need to update the separately compiled sources.
#define STD_CODECVT_NOT_SUPPORTED
#endif // _MSC_VER == 1900
#elif defined(__clang__) //Clang
#include <iosfwd> //Introduces some implement-specific flags of ISO C++ Library
#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
//<codecvt> is a known issue on libstdc++, it works on libc++
#define STD_CODECVT_NOT_SUPPORTED
#endif
#elif defined(__GNUC__) //GCC
#include <iosfwd> //Introduces some implement-specific flags of ISO C++ Library
#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
//<codecvt> is a known issue on libstdc++, it works on libc++
#define STD_CODECVT_NOT_SUPPORTED
//It's a known issue of libstdc++ on MinGW
//introduce to_string/to_wstring workarounds for disabled capacity of stdlib
#ifdef _GLIBCXX_HAVE_BROKEN_VSWPRINTF
#if (__GNUC__ < 5)
# define STD_TO_STRING_NOT_SUPPORTED
#endif
#define STD_TO_WSTRING_NOT_SUPPORTED
#endif
#endif
#if (__GNUC__ == 4)
#if ((__GNUC_MINOR__ < 8) || (__GNUC_MINOR__ == 8 && __GNUC_PATCHLEVEL__ < 1))
#define STD_THREAD_NOT_SUPPORTED
//boost.thread is preferred
//but if USE_github_com_meganz_mingw_std_threads is enabled,
//boost.thread will be replaced with meganz's mingw-std-threads.
// https://github.com/meganz/mingw-std-threads
#if !defined( USE_github_com_meganz_mingw_std_threads )
//#define USE_github_com_meganz_mingw_std_threads
#endif
#if !defined(STD_make_unique_NOT_SUPPORTED)
#define STD_make_unique_NOT_SUPPORTED
#endif //STD_make_unique_NOT_SUPPORTED
#endif
#if defined(NANA_MINGW)
//It's a knonwn issue under MinGW
#define STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED
#endif
#if (__GNUC_MINOR__ < 8)
//introduce to_string/to_wstring workaround for lack of stdlib definitions
#ifndef STD_TO_STRING_NOT_SUPPORTED
# define STD_TO_STRING_NOT_SUPPORTED
#endif
#ifndef STD_TO_WSTRING_NOT_SUPPORTED
# define STD_TO_WSTRING_NOT_SUPPORTED
#endif
#endif
#endif
#endif
// End compilers ...
// Here defines some flags that tell Nana what features will be supported.
///////////////////
//Support for PNG
// Define the NANA_ENABLE_PNG to enable the support of PNG.
//
//#define NANA_ENABLE_PNG //!
//#define USE_LIBPNG_FROM_OS // Un-Comment it to use libpng from operating system.
#if defined(NANA_ENABLE_PNG)
#if !defined(USE_LIBPNG_FROM_OS)
#define NANA_LIBPNG
#endif
#endif
///////////////////
//Support for JPEG
// Define the NANA_ENABLE_JPEG to enable the support of JPEG.
//
//#define NANA_ENABLE_JPEG //!
//#define USE_LIBJPEG_FROM_OS // Un-Comment it to use libjpeg from operating system.
#if defined(NANA_ENABLE_JPEG)
#if !defined(USE_LIBJPEG_FROM_OS)
#define NANA_LIBJPEG
#endif
#endif
// always define NANA_UNICODE ?? it will be deprecated ?.
#ifndef NANA_UNICODE
#define NANA_UNICODE
#endif
#if defined(NANA_UNICODE) && defined(NANA_WINDOWS)
#ifndef _UNICODE
#define _UNICODE
#endif
#ifndef UNICODE
#define UNICODE
#endif
#endif
#if !defined(VERBOSE_PREPROCESSOR)
//#define VERBOSE_PREPROCESSOR
#endif
#if !defined(STOP_VERBOSE_PREPROCESSOR)
#define STOP_VERBOSE_PREPROCESSOR
#endif
#endif // NANA_CONFIG_HPP