On 10-11-29 03:15 PM, Albert Y. C. Lai wrote:
cabal install --global binary
apt-get install libghc6-binary-dev
They are the same version (at the time of writing, and assume Ubuntu
10.10) and they will fight for the unique throne of "binary-0.5.0.2" in
the metadata.
Oh bother, Debian/Ubuntu's packages are even more treacherous. They
circumvent the uniqueness checks of ghc-pkg register. They just smuggle
records into /var/lib/ghc-6.12.1/package.conf.d and call ghc-pkg
recache. This procedure allows both binary-0.5.0.2 instances to be
recorded, both as global. Ironically, ghc-pkg check does not see a problem.
But this is more corruption, not less:
cabal install --global maccatcher
(this brings in binary)
apt-get install libghc6-agda-dev
(this brings in libghc6-binary-dev)
The same problem remains. When you finally try to use binary, GHC still
picks one instance only. Depend on luck, one of maccatcher and agda is
hosed.
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