workbench/libs/popupmenu/compiler.h

   1 /*
   2 **      $VER: compiler.h 37.31 (18.3.98)
   3 **
   4 **      Compiler independent register (and SAS/C extensions) handling
   5 **
   6 **      (C) Copyright 1997-98 Andreas R. Kleinert
   7 **      All Rights Reserved.
   8 */
   9
  10 #ifndef COMPILER_H
  11 #define COMPILER_H
  12
  13  /* ============================================================
  14     There have been problems how to define the seglist pointer
  15     under AROS, AmigaOS or elsewhere in a unique (and still
  16     working!) way. It seems to make sense to use a new, global
  17     type definition for it. This is done here. */
  18
  19 #ifndef _AROS
  20 # ifdef VBCC
  21 #  define SEGLISTPTR APTR
  22 # else /* !VBCC */
  23 #  include <dos/dos.h>
  24 #  define SEGLISTPTR BPTR
  25 # endif /* VBCC */
  26 #else /* !_AROS */
  27   typedef struct SegList * SEGLISTPTR;
  28 #endif /* _AROS */
  29
  30  /* ============================================================ */
  31
  32 /* Basically, Amiga C compilers must try to reach the goal to be
  33    as SAS/C compatible as possible. But on the other hand,
  34    when porting AmigaOS to other platforms, one perhaps
  35    can't expect GCC becoming fully SAS/C compatible...
  36
  37    There are two ways to make your sources portable:
  38
  39     - using non ANSI SAS/C statements and making these
  40       "available" to the other compilers (re- or undefining)
  41     - using replacements for SAS/C statements and smartly
  42       redefining these for any compiler
  43
  44    The last mentioned is the most elegant, but may require to
  45    rewrite your source codes, so this compiler include file
  46    basically does offer both.
  47
  48    For some compilers, this may have been done fromout project or
  49    makefiles for the first method (e.g. StormC) to ensure compileablity.
  50
  51    Basically, you should include this header file BEFORE any other stuff.
  52 */
  53
  54 /* ********************************************************************* */
  55 /* Method 1: redefining SAS/C keywords                                   */
  56 /*                                                                       */
  57 /* Sorry, this method does not work with register definitions for the current
  58 gcc version (V2.7.2.1), as it expects register attributes after the parameter
  59 description. (This is announced to be fixed with gcc V2.8.0).
  60 Moreover the __asm keyword has another meaning with GCC.
  61 Therefore ASM must be used. */
  62
  63 #ifdef __MAXON__  // ignore this switches of SAS/Storm
  64 #define __aligned
  65 #define __asm
  66 #define __regargs
  67 #define __saveds
  68 #define __stdargs
  69 #endif
  70
  71 #ifdef __GNUC__  // ignore this switches of SAS/Storm
  72 #define __d0
  73 #define __d1
  74 #define __d2
  75 #define __d3
  76 #define __d4
  77 #define __d5
  78 #define __d6
  79 #define __d7
  80 #define __a0
  81 #define __a1
  82 #define __a2
  83 #define __a3
  84 #define __a4
  85 #define __a5
  86 #define __a6
  87 #define __a7
  88 #endif
  89
  90 #ifdef VBCC
  91 #define __d0 __reg("d0")
  92 #define __d1 __reg("d1")
  93 #define __d2 __reg("d2")
  94 #define __d3 __reg("d3")
  95 #define __d4 __reg("d4")
  96 #define __d5 __reg("d5")
  97 #define __d6 __reg("d6")
  98 #define __d7 __reg("d7")
  99 #define __a0 __reg("a0")
 100 #define __a1 __reg("a1")
 101 #define __a2 __reg("a2")
 102 #define __a3 __reg("a3")
 103 #define __a4 __reg("a4")
 104 #define __a5 __reg("a5")
 105 #define __a6 __reg("a6")
 106 #define __a7 __reg("a7")
 107 #endif
 108
 109  /* for SAS/C we don't need this, for StormC this is done in the
 110     makefile or projectfile */
 111
 112 /*                                                                       */
 113 /* ********************************************************************* */
 114
 115
 116 /* ********************************************************************* */
 117 /* Method 2: defining our own keywords                                   */
 118 /*                                                                       */
 119 #ifdef __SASC
 120
 121 #  define REG(r)     register __ ## r
 122 #  define GNUCREG(r)
 123 #  define SAVEDS     __saveds
 124 #  define ASM        __asm
 125 #  define REGARGS    __regargs
 126 #  define STDARGS    __stdargs
 127 #  define ALIGNED    __aligned
 128
 129 #else
 130 # ifdef __MAXON__
 131
 132 #  define REG(r)    register __ ## r
 133 #  define GNUCREG(r)
 134 #  define SAVEDS
 135 #  define ASM
 136 #  define REGARGS
 137 #  define STDARGS
 138 #  define ALIGNED
 139
 140 # else
 141 #  ifdef __STORM__
 142
 143 #   define REG(r)  register __ ## r
 144 #   define GNUCREG(r)
 145 #   define SAVEDS  __saveds
 146 #   define ASM
 147 #   define REGARGS
 148 #   define STDARGS
 149 #   define ALIGNED
 150
 151 #  else
 152 #   ifdef __GNUC__
 153
 154 #    ifdef __AROS__
 155 #     define REG(r)
 156 #     define GNUCREG(r)
 157 #     define SAVEDS
 158 #     define ASM
 159 #     define REGARGS
 160 #     define STDARGS
 161 #     define ALIGNED
 162 #     define __saveds
 163 #     define __asm
 164 #     define chip
 165 #    else
 166 #     define REG(r)
 167 #     define GNUCREG(r)  __asm( #r )
 168 #     define SAVEDS  __saveds
 169 #     define ASM
 170 #     define REGARGS __regargs
 171 #     define STDARGS __stdargs
 172 #     define ALIGNED __aligned
 173 #    endif
 174
 175 #   else
 176 #    ifdef VBCC
 177 /* VBCC ignore this switch */
 178 #     define __aligned
 179 #     define __asm
 180 #     define __regargs
 181 #     define __saveds
 182 #     define __stdargs
 183 #     define __register
 184 #     define GNUCREG(r)
 185 #     define REG(r)
 186 #     define SAVEDS
 187 #     define ASM
 188 #     define REGARGS
 189 #     define STDARGS
 190 #     define ALIGNED
 191
 192 #    else
 193 #     ifdef _DCC
 194 #      define __aligned
 195 #      define __stdargs
 196 #      define GNUCREG(r)
 197 #      define ASM
 198
 199 #     else  /* any other compiler, to be added here */
 200
 201 #      define REG(r)
 202 #      define GNUCREG(r)
 203 #      define SAVEDS
 204 #      define ASM
 205 #      define REGARGS
 206 #      define STDARGS
 207 #      define ALIGNED
 208
 209 #     endif /*   _DCC      */
 210 #    endif /*   VBCC      */
 211 #   endif /*  __GNUC__   */
 212 #  endif /*  __STORM__  */
 213 # endif /*  __MAXON__  */
 214 #endif /*  __SASC     */
 215 /*                                                                       */
 216 /* ********************************************************************* */
 217
 218 #endif /* COMPILER_H */