rem: if ((WCUR_ROOT == index) && (None != *cursor)) {
add: if (index==WCUR_ROOT && *cursor!=None) {
context: setCursor(WScreen *scr, WDefaultEntry *entry, Cursor *cursor, long index){   if (None != wCursor[index]) {       XFreeCursor(dpy, wCursor[index]);   }   wCursor[index] = *cursor;   if ((WCUR_ROOT == index) && (None != *cursor)) {       XDefineCursor(dpy, scr->root_win, *cursor);   }   return 0;}