Added the "buildname" variable which has

  Added the "buildname" variable which has
    the "u" after "gtk2" in it. This is helpful
    to prevent the matching string {gtk2}*_xrc
    from incorrectly finding _gizmos_xrc instead
    of just _xrc. Now the lib names can be given
    exactly {portname}_xrc and {portname}_gizmos_xrc.
    Still rebuilding..

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33516 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775