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Fixing bug 34086
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There's a few options:
**A new architecture type**
Instead of borrowing "i386" as an arch-all architecture, we could have a
"archall" architecture (albeit special-cased) thus allowing us to give
arch:all packages their own BPRs and only garbage-collect them when the
source is superseded
*Pros*:
- Can make better use of the build farm by removing nominatedarchindep and building on all architectures.
*Cons*:
- Difficult and time-consuming to implement
**Dominate in binary groupings**
Only dominate all a source's binaries in one DAS all at once, or not at all.
Effectively, this is preventing the arch:all from being dominated too early
when other binaries in the same DAS cannot be dominated yet.
*Pros*:
- Easy-ish to implement;
- requires thought about performance degradation
*Cons*:
- Another special case;
- doesn't head in the "right" direction as above;
- potentially leaves some binaries hanging around longer than necessary
**Track dependencies in the packages**
Reference count dependencies on arch:all binaries and only dominate when the reference count is zero.
*Pros*:
- Overcomes the limitation of the previous solution where binaries linger longer than necessary
*Cons*:
- Considerably harder to implement