[oe] Using tar option strip-components in do_unpack

[Koen Kooi]

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On 14-05-10 23:23, Henning Heinold wrote:
> Hi,
> 
> I discussed with pb on irc, how it would be the best way to unpack two tar
> archivs into the same directory. He pointed me to the tar strip-components
> options and attached is the outcome. Because base.bbclass is touched it is
> open for discussion here.

Please don't forget to update docs/usermanual when adding new features.

regards,

Koen
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