Bug#855404: libsfml-window2.4: potential deadlocks in GL context handling

[James Cowgill]

Package: libsfml-window2.4
Version: 2.4.1+dfsg-1
Severity: important
Forwarded: https://github.com/SFML/SFML/issues/1165
Control: fixed -1 2.4.2+dfsg-1

Upstream have explicitly asked me to try and fix upstream issue #1165
for stretch. Depending on what applications using SFML do, it is
possible that this bug will cause them to deadlock or crash with a stack
overflow at some point during the handling of OpenGL contexts  (see the
upstream bug for more details).

It's already fixed with 2.4.2.
The fix is at https://github.com/SFML/SFML/pull/1172

Thanks,
James

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