[Haskell-cafe] GHC7 build problem

Edward Z. Yang ezyang at MIT.EDU
Sat Jun 11 21:37:20 CEST 2011

Yes, the tree was broken for some time between yesterday and today, and you
appear to have gotten unlikely.  It should have been fixed now, so you should
try again.


Excerpts from Scott Lawrence's message of Sat Jun 11 12:44:18 -0400 2011:
> Trying to compile GHC7 from source (as the ubuntu repository is still on
> GHC6), I came across the following error in the final phase:
> libraries/base/GHC/ST.lhs:78:1:
>     You cannot SPECIALISE `forever'
>       because its definition has no INLINE/INLINABLE pragma
>       (or its defining module `Control.Monad' was compiled without -O)
> This was after:
>   git clone [...]
>   ./sync-all get
>   perl boot
>   ./configure
>   make
> Is there some problem with trying to build GHC7 on a machine with GHC6,
> or did I just get the build procedure wrong (the last line of the error
> looks like a hint that I did).

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