compile fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49899 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/mediactrl.cpp

@@ -976,7 +976,11 @@ bool wxGStreamerMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
     char **argvGST = new char*[wxTheApp->argc + 1];
     for ( i = 0; i < wxTheApp->argc; i++ )
     {
+#if wxUSE_UNICODE_WCHAR
         argvGST[i] = wxStrdupA(wxConvUTF8.cWX2MB(wxTheApp->argv[i]));
+#else
+        argvGST[i] = wxStrdupA(wxTheApp->argv[i].utf8_str());
+#endif
     }
 
     argvGST[wxTheApp->argc] = NULL;