Commits on Aug 8, 2022

1. Fix for lock recusion in handle_all_expose() …

   XCheckIfEvent() holds the X display lock and the predicate
   function it calls is not allowed to call any Xlib function that
   would re-enter the lock.
   libX11 1.8.1 enables X display locks unconditionnaly (it was only
   enabled by XInitThreads() when called explicitely before) and
   thus exposes the issue.
   
   So don't process events in the FCheckPeekIfEvent() predicate, but
   instead use a separate handler that is called for the returned event
   out of the lock.

   

   mherrb committed Aug 8, 2022
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