[Fedora-haskell-list] [Bug 460304] Add macros to GHC for packaging cabal packages for GHC

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https://bugzilla.redhat.com/show_bug.cgi?id=460304





--- Comment #13 from Tom Moertel <tom moertel com>  2008-09-04 23:44:39 EDT ---
Yaakov, thanks for explaining your concerns in detail.

In reviewing Jens's spec for ghc-X11, it appears that it avoids your primary
concern by passing the "--ghc" flag during the initial Cabal-setup invocation:

    %build
    %cabal_configure -p --ghc   <= HERE
    %cabal_makefile
    %cabal build
    %cabal haddock
    %ghc_gen_scripts

According to the Cabal documentation, this flag ensures that Cabal will use GHC
for the later stages of Cabal processing, regardless of which Haskell
implementation runhaskell invokes.  (Ref:
http://www.haskell.org/ghc/docs/latest/html/Cabal/builders.html#setup-configure)
 So even if runhaskell invoked NHC, for example, Jens's spec would still build
a GHC package.

Do you think using Cabal-setup flags to specify the desired compiler will
adequately resolve your concern about hidden compiler dependencies?

Cheers,
Tom

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