[Haskell-cafe] holumbus error message -- unexpected package db stack

Jonathan Daugherty drcygnus at gmail.com
Sat Sep 4 00:31:53 EDT 2010

> This gave me a buildable make of the code
> (make just calls Setup for each step) but in the "make install" I get:
> localhost:/home/roderick/Source/hs/src/distribution # make install
> Installing library in
> /usr/local/lib/Holumbus-Distribution-
> Installing executable(s) in /usr/local/bin
> Registering Holumbus-Distribution-
> Setup.hs: internal error: unexpected package db stack
> make: *** [install] Error 1
> So, my question is "What is the 'unexpected package db stack' caused by?"
> Does this give me any hints about the actual problem?

Is cabal using a custom GHC package database?  You might find this illuminating:


  Jonathan Daugherty

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