[arch-general] Errors while upgrading ghc and haskell packages

[Alexandre Ferrando]

Total newbie on haskell packages here.

While upgrading to the last version of ghc and related haskell
packages from testing, I've seen the following errors in the pacman
log

[2013-04-26 09:54] [PACMAN] upgraded ghc (7.6.2-1 -> 7.6.3-1)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package text-0.11.2.3
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-text (0.11.2.3-2 -> 0.11.2.3-3)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package
transformers-0.3.0.0
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-transformers (0.3.0.0-3
-> 0.3.0.0-4)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package mtl-2.1.2
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-mtl (2.1.2-2 -> 2.1.2-3)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package syb-0.4.0
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-syb (0.4.0-1 -> 0.4.0-2)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package json-0.7
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-json (0.7-4 -> 0.7-5)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package parsec-3.1.3
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-parsec (3.1.3-2 -> 3.1.3-3)
[2013-04-26 09:54] [ALPM-SCRIPTLET] ghc-pkg: cannot find package
regex-base-0.93.2
[2013-04-26 09:54] [ALPM-SCRIPTLET] Reading package info from stdin ... done.
[2013-04-26 09:54] [PACMAN] upgraded haskell-regex-base (0.93.2-12 -> 0.93.2-13)

Is it safe to ignore those "cannot find package X" or is there
something that must be done?