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   1  /*    EXTERN.h
   2   *
   3   *    Copyright (C) 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999,
   4   *    2000, 2001, by Larry Wall and others
   5   *
   6   *    You may distribute under the terms of either the GNU General Public
   7   *    License or the Artistic License, as specified in the README file.
   8   *
   9   */
  10  
  11  /*
  12   * EXT  designates a global var which is defined in perl.h
  13   * dEXT designates a global var which is defined in another
  14   *      file, so we can't count on finding it in perl.h
  15   *      (this practice should be avoided).
  16   */
  17  #undef EXT
  18  #undef dEXT
  19  #undef EXTCONST
  20  #undef dEXTCONST
  21  #if defined(VMS) && !defined(__GNUC__)
  22      /* Suppress portability warnings from DECC for VMS-specific extensions */
  23  #  ifdef __DECC
  24  #    pragma message disable (GLOBALEXT,NOSHAREEXT,READONLYEXT)
  25  #  endif
  26  #  define EXT globalref
  27  #  define dEXT globaldef {"$GLOBAL_RW_VARS"} noshare
  28  #  define EXTCONST globalref
  29  #  define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
  30  #else
  31  #  if (defined(WIN32) || defined(__SYMBIAN32__)) && !defined(PERL_STATIC_SYMS)
  32  #    if defined(PERLDLL) || defined(__SYMBIAN32__)
  33  #      define EXT extern __declspec(dllexport)
  34  #      define dEXT 
  35  #      define EXTCONST extern __declspec(dllexport) const
  36  #      define dEXTCONST const
  37  #    else
  38  #      define EXT extern __declspec(dllimport)
  39  #      define dEXT 
  40  #      define EXTCONST extern __declspec(dllimport) const
  41  #      define dEXTCONST const
  42  #    endif
  43  #  else
  44  #    if defined(__CYGWIN__) && defined(USEIMPORTLIB)
  45  #      define EXT extern __declspec(dllimport)
  46  #      define dEXT 
  47  #      define EXTCONST extern __declspec(dllimport) const
  48  #      define dEXTCONST const
  49  #    else
  50  #      define EXT extern
  51  #      define dEXT
  52  #      define EXTCONST extern const
  53  #      define dEXTCONST const
  54  #    endif
  55  #  endif
  56  #endif
  57  
  58  #undef INIT
  59  #define INIT(x)
  60  
  61  #undef DOINIT