lib/perl5/5.6.1/msys/CORE/EXTERN.h

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