kc3-lang/SDL/include/begin_code.h

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• Hash : 08fa8da7
  Author :
  Date : 2013-10-20T21:56:15
  

  Fixed bug 2129 - fix for bug 2121 breaks linking for mingw and throws multiple warnings Andreas Ertelt The problem in question is caused by changeset 7771 (http://hg.libsdl.org/SDL/rev/5486e579872e / https://bugzilla.libsdl.org/show_bug.cgi?id=2121) The redefinition of __inline__ (introduced by the addition of begin_code.h:128's "|| __STRICT_ANSI__") results in mingw's gcc throwing multiple warning: always_inline function might not be inlinable [-Wattributes] as well as a whole bunch of redefinitions of mingw internals which break linking of projects including the SDL2 headers.

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• include/begin_code.h

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  
  /**
   *  \file begin_code.h
   *
   *  This file sets things up for C dynamic library function definitions,
   *  static inlined functions, and structures aligned at 4-byte alignment.
   *  If you don't like ugly C preprocessor code, don't look at this file. :)
   */
  
  /* This shouldn't be nested -- included it around code only. */
  #ifdef _begin_code_h
  #error Nested inclusion of begin_code.h
  #endif
  #define _begin_code_h
  
  #ifndef SDL_DEPRECATED
  #  if (__GNUC__ >= 4)  /* technically, this arrived in gcc 3.1, but oh well. */
  #    define SDL_DEPRECATED __attribute__((deprecated))
  #  else
  #    define SDL_DEPRECATED
  #  endif
  #endif
  
  /* Some compilers use a special export keyword */
  #ifndef DECLSPEC
  # if defined(__WIN32__)
  #  ifdef __BORLANDC__
  #   ifdef BUILD_SDL
  #    define DECLSPEC
  #   else
  #    define DECLSPEC    __declspec(dllimport)
  #   endif
  #  else
  #   define DECLSPEC __declspec(dllexport)
  #  endif
  # else
  #  if defined(__GNUC__) && __GNUC__ >= 4
  #   define DECLSPEC __attribute__ ((visibility("default")))
  #  elif defined(__GNUC__) && __GNUC__ >= 2
  #   define DECLSPEC __declspec(dllexport)
  #  else
  #   define DECLSPEC
  #  endif
  # endif
  #endif
  
  /* By default SDL uses the C calling convention */
  #ifndef SDLCALL
  #if defined(__WIN32__) && !defined(__GNUC__)
  #define SDLCALL __cdecl
  #else
  #define SDLCALL
  #endif
  #endif /* SDLCALL */
  
  /* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */
  #ifdef __SYMBIAN32__
  #undef DECLSPEC
  #define DECLSPEC
  #endif /* __SYMBIAN32__ */
  
  /* Force structure packing at 4 byte alignment.
     This is necessary if the header is included in code which has structure
     packing set to an alternate value, say for loading structures from disk.
     The packing is reset to the previous value in close_code.h
   */
  #if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__)
  #ifdef _MSC_VER
  #pragma warning(disable: 4103)
  #endif
  #ifdef __BORLANDC__
  #pragma nopackwarning
  #endif
  #ifdef _M_X64
  /* Use 8-byte alignment on 64-bit architectures, so pointers are aligned */
  #pragma pack(push,8)
  #else
  #pragma pack(push,4)
  #endif
  #endif /* Compiler needs structure packing set */
  
  #ifndef SDL_INLINE
  /* Set up compiler-specific options for inlining functions */
  #if defined(_MSC_VER) || defined(__BORLANDC__) || \
      defined(__DMC__) || defined(__SC__) || \
      defined(__WATCOMC__) || defined(__LCC__) || \
      defined(__DECC)
  #define SDL_INLINE  __inline
  #else
  #define SDL_INLINE inline
  #endif /* Visual C++ */
  #endif /* SDL_INLINE not defined */
  
  /* If inlining isn't supported, remove SDL_INLINE, turning static
     inlined functions into static functions (potentially resulting in
     code bloat in all files which include the offending header files)
  */
  #if __STRICT_ANSI__
  #undef SDL_INLINE
  #define SDL_INLINE
  #endif
  
  #ifndef SDL_FORCE_INLINE
  #if defined(_MSC_VER)
  #define SDL_FORCE_INLINE __forceinline
  #elif ( (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__) )
  #define SDL_FORCE_INLINE __attribute__((always_inline)) static SDL_INLINE
  #else
  #define SDL_FORCE_INLINE static SDL_INLINE
  #endif
  #endif /* SDL_FORCE_INLINE not defined */
  
  /* Apparently this is needed by several Windows compilers */
  #if !defined(__MACH__)
  #ifndef NULL
  #ifdef __cplusplus
  #define NULL 0
  #else
  #define NULL ((void *)0)
  #endif
  #endif /* NULL */
  #endif /* ! Mac OS X - breaks precompiled headers */
  

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