Before that, something like:
(call-with-container
(lambda ()
(match (primitive-fork)
…)))
would hang in 'primitive-fork' as the child process (the one started in
the container) would try to pthread_join the finalization thread in
'stop_finalization_thread' in libguile, not knowing that this thread is
nonexistent.
* guix/build/syscalls.scm (%set-automatic-finalization-enabled?!): New
procedure.
(without-automatic-finalization): New macro.
(clone): Wrap PROC call in 'without-automatic-finalization'.
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