added wxFORCE_LINK_MODULE public macro which can now be used outside of wxHTML too; modified it to not provoke icc warnings when used

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35684 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/link.h

@@ -0,0 +1,32 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/link.h
+// Purpose:     macros to force linking modules which might otherwise be
+//              discarded by the linker
+// Author:      Vaclav Slavik
+// RCS-ID:      $Id$
+// Copyright:   (c) Vaclav Slavik
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_LINK_H_
+#define _WX_LINK_H_
+
+// This must be part of the module you want to force:
+#define wxFORCE_LINK_THIS_MODULE(module_name)                         \
+                extern void _wx_link_dummy_func_##module_name ();     \
+                void _wx_link_dummy_func_##module_name () { }
+
+
+// And this must be somewhere where it certainly will be linked:
+#define wxFORCE_LINK_MODULE(module_name)                              \
+                extern int _wx_link_dummy_func_##module_name ();      \
+                static struct wxForceLink##module_name                \
+                {                                                     \
+                    wxForceLink##module_name()                        \
+                    {                                                 \
+                        _wx_link_dummy_func_##module_name ();         \
+                    }                                                 \
+                } _wx_link_dummy_var_##module_name;
+
+
+#endif // _WX_LINK_H_