Maybe you forgot `git submodule init` or `git submodule update`? See this page for a simple trick to never forget again: https://ghc.haskell.org/trac/ghc/wiki/WorkingConventions/Git/Submodules#UsingaGitalias

If that didn't work, do a `make maintainer-clean` and try again.

On Thu, Jun 11, 2015 at 4:37 PM, Wolfgang Jeltsch <g9ks157k@acme.softbase.org> wrote:

Hi,

I just updated my GHC HEAD copy via git pull and tried to rebuild GHC
with BuildFlavour set to devel2. I got the following error message:

ghc/InteractiveUI.hs:68:8: error:
Could not find module ‘Control.DeepSeq’
It is a member of the hidden package
‘deepseq-1.4.1.1@deeps_6vMKxt5sPFR0XsbRWvvq59’.
Use -v to see a list of the files searched for.

Any ideas what to do?

All the best,
Wolfgang

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