[PATCH 4/5] Support backtracing through elfutils (#70746)

[Keith Packard]

Peter Hutterer <peter.hutterer at who-t.net> writes:

> From the discussion I gathered that libunwind is the best option for now
> until someone implements and external backtracer through fork() +
> exec().

Sounds good.

> So please ignore this patchset.

I was wondering whether we should add some configuration option that
explicitly selects libunwind. At present, it's purely auto-detect, which
means that if you happen to have it installed, it will use it.

-- 
keith.packard at intel.com
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