Ticket #615 (closed defect: duplicate)
cabal install attempts to reinstall "same version" of already-installed package
|Reported by:||guest||Owned by:|
|Cc:||Difficulty:||very hard (<1 week)|
This is on ghc 6.12.1 rc2. The problem occurs because I installed a different version of ghc-syb than the one in hackage, but which retained the same version *number* as the one in hackage. Bumping up the version number of the alternate version, solved the problem, but it was confusing, and I believe I may have experienced this before without understanding what was happening.
The alternate version of ghc-syb I used is at git://github.com/waern/ghc-syb.git
I was working on scion to try and get it to build on ghc 6.12.1, and when I tried to cabal install it from my working directory, cabal install started to reinstall ghc-syb - even though ghc-syb was already installed, with the same version number as the version it was trying to reinstall.