[Haskell-cafe] Can't install snap (problem with syb)

[Albert Y. C. Lai]

On 12-03-28 06:30 PM, Brandon Allbery wrote:
> Did you also remove ~/.ghc?  Libraries are actually installed and
> registered there, not under ~/.cabal.

Reality is less simplistic than that. .ghc has library metadata. .cabal 
has library files. See my
http://www.vex.net/~trebla/haskell/sicp.xhtml
and verify, verify, verify.

Since GHC simply trusts its metadata (and not re-scan library files to 
re-discover libraries), metadata dominates.