lib/perl5/5.8.8/msys/CORE/EXTERN.h

   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(PERL_STATIC_SYMS)
  32 #    ifdef PERLDLL
  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(__MSYS__)) && 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