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Bug 701374 - dev-haskell/cryptohash-0.11.9 potential slot interaction with dev-haskell/cryptonite-0.21
Summary: dev-haskell/cryptohash-0.11.9 potential slot interaction with dev-haskell/cry...
Status: RESOLVED DUPLICATE of bug 449094
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo's Haskell Language team
Depends on:
Reported: 2019-11-28 07:02 UTC by Kent Fredric (IRC: kent\n) (RETIRED)
Modified: 2019-11-28 07:17 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2019-11-28 07:02:28 UTC
I've hit upon an odd situation, after many @world upgrades, I still have this in @preserved-rebuild, and I usually take this as a sign something is wrong:

>>> package: dev-haskell/cryptonite-0.21
 *  - /usr/lib64/x86_64-linux-ghc-8.0.2/
 *      used by /usr/lib64/x86_64-linux-ghc-8.0.2/ (dev-haskell/cryptohash-0.11.9)

Relevant qlop history:

2016-03-18T14:48:35 >>> dev-lang/ghc-7.10.3: 2 hours, 18 minutes, 25 seconds
2016-03-18T17:34:53 >>> dev-haskell/cryptohash-0.11.6: 40 seconds
2017-01-28T04:14:15 >>> dev-lang/ghc-7.10.3: 4 hours, 49 minutes, 9 seconds
2017-02-18T07:43:03 >>> dev-lang/ghc-8.0.2: 5 hours, 57 minutes, 1 second
2017-02-18T18:14:48 >>> dev-haskell/cryptohash-0.11.6: 1 minute, 1 second
2017-06-07T02:13:37 >>> dev-haskell/cryptonite-0.21: 1 minute, 18 seconds
2017-06-07T02:14:55 >>> dev-haskell/cryptohash-0.11.9: 31 seconds
2017-12-13T22:23:34 >>> dev-lang/ghc-8.0.2: 2 hours, 59 minutes, 18 seconds
2017-12-14T01:47:44 >>> dev-haskell/cryptonite-0.21: 1 minute, 52 seconds
2017-12-14T01:55:07 >>> dev-haskell/cryptohash-0.11.9: 39 seconds
2018-09-08T00:42:51 >>> dev-lang/ghc-8.0.2: 3 hours, 19 minutes, 23 seconds
2018-10-12T06:28:02 >>> dev-lang/ghc-8.0.2: 4 hours, 10 minutes, 7 seconds
2019-09-12T10:22:05 >>> dev-haskell/cryptonite-0.21: 1 minute, 30 seconds
2019-09-12T10:32:28 >>> dev-haskell/cryptohash-0.11.9: 40 seconds
2019-09-18T14:48:44 >>> dev-lang/ghc-8.0.2: 4 hours, 23 minutes, 41 seconds
2019-10-13T23:08:30 >>> dev-haskell/cryptonite-0.21: 1 minute, 56 seconds
2019-11-25T08:03:42 >>> dev-haskell/cryptonite-0.21: 1 minute, 44 seconds

As it is, portage isn't even considering that cryptohash needs rebuilding:

emerge -uvatDN1 --backtrack 10  cryptohash

These are the packages that would be merged:

Calculating dependencies... done!

Total: 0 packages, Size of downloads: 0 KiB

Nothing to merge; quitting

(Usually that invocation is enough for subslot-op rebuilds )

haskell-updater does indeed however detect that work needs done:

Found the following broken packages:
  * dev-haskell/cryptohash:0
  * dev-vcs/darcs:0

Just in general, my understanding is this tool is a stop-gap to handle problems that aren't fixed by slot-op rebuilds.

This may not be a bug. *shrug*.
Comment 1 Sergei Trofimovich (RETIRED) gentoo-dev 2019-11-28 07:17:50 UTC
(In reply to Kent Fredric (IRC: kent\n) from comment #0)

> Just in general, my understanding is this tool is a stop-gap to handle
> problems that aren't fixed by slot-op rebuilds.
> This may not be a bug. *shrug*.

slot op is not expressive enough to define the following properties:
- if package ABI depends on ABI of not just immediate DEPENDS but on ABI of transitive dependencies you can't express it: bug #449094
- if package ABI depends on package USE flags you can't express it

There is no easy workaround for it and requires PMS extension.

*** This bug has been marked as a duplicate of bug 449094 ***