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Rather than encoding them in existing constructors.
This will enable us to check that uses of the new syntax
are flagged in .cabal files with cabal-version: >= 1.6

Yes, LHC really does use ghc-pkg (with a different package.conf)

So it uses libdir=$prefix/lib rather than libdir=/usr/local/lib

Support for LHC is the first divergence between 1.7
and the stable 1.6.x series.

On newer GHCs using {-# OPTIONS_GHC -fffi #-} gives a warning which
can lead to a compile failure when -Werror is activated.  We therefore
emit this option if we know that the LANGUAGE pragma is supported 
(ghc >= 6.6.1).

Fixes ticket #389

This happened when the lib used pkg-config but the exe did not.
It cropped up in hsSqlite3-0.0.5.

Variant on a patch from Bryan O'Sullivan

Avoid chicken and egg problem. We cannot upload Cabsl-1.6 to
hackage until hackage is using Cabal-1.6 if it uses features
that are introduced in 1.6. So just comment them out for now.

Makes it possible for alex and happy to work with cabal-1.2 -> 1.6

Building the haddock docs requires building first. Arguably this is
a Cabal bug. It should probably generate the "autogen" files for
haddock and not just for build.

It did not actually contain any release notes and just
duplicated information in the README which was confusing.

The ',' character is not used as a separator and is allowed
within flag tokens. Fixes at least HsPerl5.

To make easier to track recent Cabal / cabal-install changes

Do it by just filtering that module out of the package
description before running sdist etc. This isn't lovely
because it steals that module name from the module namespace
but at least it now works. Thanks to Jean-Philippe Bernardy
for the first iteration of this patch.

Hopefully we can figure out a better fix for recent cygwin
versions of xargs which are apparently broken.

rolling back:

Wed Oct  8 08:44:10 PDT 2008  Clemens Fruhwirth <clemens@endorphin.org>
  * Also respect the max. command line size in Makefile driven builds

    M ./Distribution/Simple/GHC.hs -7 +13
    M ./Distribution/Simple/GHC/Makefile.hs -1 +1
    M ./Distribution/Simple/GHC/Makefile.in -1 +1

Thanks to Dimitry and Ross for identifying the problem.