[oe] cleaning recipes

[Graeme Gregory]

 On 16/08/10 20:38, Frans Meulenbroeks wrote:
> 2010/8/16 Graeme Gregory <dp at xora.org.uk>:
>>  On 16/08/10 13:14, Frans Meulenbroeks wrote:
>>> 2010/8/16 Koen Kooi <k.kooi at student.utwente.nl>:
>>> would be nice if oe would detect those cases and force a rebuild.
>>>> That doesn't help if you're using packagemanagement. Now you have
>>>> "foo_1.0-r0.ipk" in the feeds that statically linked to openssl 0.9.8
>>>> and "foo_1.0-r0.ipk" locally that statically links to 1.0.0. So users
>>>> still don't get the fixes that went into openssl.
>>> Agree.
>>> I vaguely recall an idea (I believe from RP) to have a hash or so
>>> derived from the whole dependency tree below it.
>>> This discussion probably ran somewhere last winter.
>>>
>>> Frans
>>>
>> A quick implementation would sum all PR in depends tree above us.
>>
>> Graeme
>>
> That would be an elegant and simple solution.
> There is a minor issue with it wrt lettering (but I guess these can be
> skipped) and maybe cvs/svn/git numbers (i seem to recall some of these
> are not monotonic).
> A more difficult issue is if a dependency is removed. Then suddenly
> the number will drop. The only solution I see right away is manually
> add an offset to the recipe to accomodate for this (but it is not
> really a nice solution).
>
I never was a fan of the git rev being in the PR and Phil Blundell
checked in a method we can use to avoid this but is not used by any
distro so far AFAIK.

Graeme