fix for Borland 5.5

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/xpmdecod.h

@@ -36,6 +36,10 @@ public:
 #endif
     // Read directly from XPM data (as passed to wxBitmap ctor):
     wxImage ReadData(const char* const* xpm_data);
+#ifdef __BORLANDC__
+    // needed for Borland 5.5
+    wxImage ReadData(char** xpm_data) { return ReadData(wx_const_cast(const char* const*, xpm_data)); }
+#endif
 };
 
 #endif // wxUSE_IMAGE && wxUSE_XPM