gcc/ada/mingw32.h

   1 /****************************************************************************
   2  *                                                                          *
   3  *                         GNAT COMPILER COMPONENTS                         *
   4  *                                                                          *
   5  *                               M I N G W 3 2                              *
   6  *                                                                          *
   7  *                              C Header File                               *
   8  *                                                                          *
   9  *          Copyright (C) 2002-2007, Free Software Foundation, Inc.         *
  10  *                                                                          *
  11  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  12  * terms of the  GNU General Public License as published  by the Free Soft- *
  13  * ware  Foundation;  either version 2,  or (at your option) any later ver- *
  14  * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
  15  * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
  16  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License *
  17  * for  more details.  You should have  received  a copy of the GNU General *
  18  * Public License  distributed with GNAT;  see file COPYING.  If not, write *
  19  * to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, *
  20  * Boston, MA 02110-1301, USA.                                              *
  21  *                                                                          *
  22  * As a  special  exception,  if you  link  this file  with other  files to *
  23  * produce an executable,  this file does not by itself cause the resulting *
  24  * executable to be covered by the GNU General Public License. This except- *
  25  * ion does not  however invalidate  any other reasons  why the  executable *
  26  * file might be covered by the  GNU Public License.                        *
  27  *                                                                          *
  28  * GNAT was originally developed  by the GNAT team at  New York University. *
  29  * Extensive contributions were provided by Ada Core Technologies Inc.      *
  30  *                                                                          *
  31  ****************************************************************************/
  32
  33 /*  This file provides some macros used for the MINGW32 platform. The main
  34     goal is to be able to build GNAT with a standard MINGW32 C header
  35     set. This files contains also the circuitry for the unicode support.   */
  36
  37 #ifndef _MINGW32_H
  38 #define _MINGW32_H
  39
  40 /* The unicode support is activated by default starting with the 3.9 MingW
  41    version. It is not possible to use it with previous version due to a bug
  42    in the MingW runtime.  */
  43
  44 #if (((__MINGW32_MAJOR_VERSION == 3 \
  45                    && __MINGW32_MINOR_VERSION >= 9) \
  46      || (__MINGW32_MAJOR_VERSION >= 4)) \
  47      && !defined (RTX))
  48 #define GNAT_UNICODE_SUPPORT
  49
  50 #else
  51
  52 /*  Older MingW versions have no definition for _tfreopen, add it here to have a
  53     proper build without unicode support.  */
  54 #ifndef _tfreopen
  55 #define _tfreopen   freopen
  56 #endif
  57
  58 #endif
  59
  60 #ifdef GNAT_UNICODE_SUPPORT
  61 #define _UNICODE /* For C runtime */
  62 #define UNICODE  /* For Win32 API */
  63 #endif
  64
  65 #include <tchar.h>
  66
  67 /* After including this file it is possible to use the character t as prefix
  68    to routines. If GNAT_UNICODE_SUPPORT is defined then the unicode enabled
  69    versions will be used.  */
  70
  71 /* Copy to/from wide-string, if GNAT_UNICODE_SUPPORT activated this will do
  72    the proper translations using the UTF-8 encoding.  */
  73
  74 #ifdef GNAT_UNICODE_SUPPORT
  75 #define S2WSU(wstr,str,len) \
  76    MultiByteToWideChar (CP_UTF8,0,str,-1,wstr,len)
  77 #define WS2SU(str,wstr,len) \
  78    WideCharToMultiByte (CP_UTF8,0,wstr,-1,str,len,NULL,NULL)
  79 #define S2WS(wstr,str,len) \
  80    MultiByteToWideChar (CP_ACP,0,str,-1,wstr,len)
  81 #define WS2S(str,wstr,len) \
  82    WideCharToMultiByte (CP_ACP,0,wstr,-1,str,len,NULL,NULL)
  83 #else
  84 #define S2WSU(wstr,str,len) strncpy(wstr,str,len)
  85 #define WS2SU(str,wstr,len) strncpy(str,wstr,len)
  86 #define S2WS(wstr,str,len) strncpy(wstr,str,len)
  87 #define WS2S(str,wstr,len) strncpy(str,wstr,len)
  88 #endif
  89
  90 #include <stdlib.h>
  91
  92 /* STD_MINGW: standard if MINGW32 version > 1.3, we have switched to this
  93    version instead of the previous enhanced version to ease building GNAT on
  94    Windows platforms. By using STD_MINGW or OLD_MINGW it is possible to build
  95    GNAT using both MingW include files (Old MingW + ACT changes and standard
  96    MingW starting with version 1.3.
  97    For w64 Mingw the define STD_MINGW is always set to value 1, because
  98    there is no old header set present.  */
  99 #ifdef _WIN64
 100 #define STD_MINGW 1
 101 #else
 102 #define STD_MINGW ((__MINGW32_MAJOR_VERSION == 1 \
 103                    && __MINGW32_MINOR_VERSION >= 3) \
 104      || (__MINGW32_MAJOR_VERSION >= 2))
 105 #endif
 106
 107 #define OLD_MINGW (!(STD_MINGW))
 108
 109 #ifndef MAXPATHLEN
 110 #define MAXPATHLEN MAX_PATH
 111 #endif
 112
 113 #endif /* _MINGW32_H */