X              XImUtil        XScreenType    XShm           XtC  
XAtomQueue     XInput         XScrnCmap      XTrestle       XtE  
XClient        XKeySym        XScrnCrsr      Xatom          XtN  
XClientExt     XMachine       XScrnFont      Xaw            XtR  
XClientF       XMessenger     XScrnPntOp     Xct            XtermModel  
XCursors       XPaint         XScrnPxmp      Xmbuf          
XEventQueue    XParam         XScrnTpRep     Xmu            
XExtensions    XPicture       XScrollQueue   Xrm            
XGC            XProperties    XSharedMem     Xt