17 Apr
2013
17 Apr
'13
8:28 a.m.
ghc is installed globally, and local packages should not "break" it.
still cabal-install says so (and I don't dare to test ...)
If you're installing locally or (even better) in a sandbox, then you cannot completely (i.e., irrevocably) break your compiler. You can always remove the package db. Yes, Cabal warns you nevertheless, because if the user package db is your current context, the ghc package will subsequently be broken in that context, and that can be bad/inconvenient enough in practice. Cheers, Andres