include/wx/link.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/link.h
   3 // Purpose:     macros to force linking modules which might otherwise be
   4 //              discarded by the linker
   5 // Author:      Vaclav Slavik
   6 // Copyright:   (c) Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_LINK_H_
  11 #define _WX_LINK_H_
  12
  13 // This must be part of the module you want to force:
  14 #define wxFORCE_LINK_THIS_MODULE(module_name)                         \
  15                 extern void _wx_link_dummy_func_##module_name ();     \
  16                 void _wx_link_dummy_func_##module_name () { }
  17
  18
  19 // And this must be somewhere where it certainly will be linked:
  20 #define wxFORCE_LINK_MODULE(module_name)                              \
  21                 extern void _wx_link_dummy_func_##module_name ();     \
  22                 static struct wxForceLink##module_name                \
  23                 {                                                     \
  24                     wxForceLink##module_name()                        \
  25                     {                                                 \
  26                         _wx_link_dummy_func_##module_name ();         \
  27                     }                                                 \
  28                 } _wx_link_dummy_var_##module_name;
  29
  30
  31 #endif // _WX_LINK_H_