Lots of Unix/Unicode compile fixes, some of which

are just #ifdef 0 such as the wxExecute calls
    in gdcps.cpp.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16375 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/dir.cpp

@@ -303,7 +303,7 @@ bool wxDir::HasSubDirs(const wxString& spec)
         // caller will learn it soon enough when it calls GetFirst(wxDIR)
         // anyhow
         wxStructStat stBuf;
-        if ( wxStat(M_DIR->GetName(), &stBuf) == 0 )
+        if ( wxStat(M_DIR->GetName().fn_str(), &stBuf) == 0 )
         {
             switch ( stBuf.st_nlink )
             {