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Have Cabal build a Setup executable and test with it. #3260

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Have Cabal build a Setup executable and test with it. #3260

wants to merge 1 commit into from

Commits on Mar 31, 2016

  1. Have Cabal build a Setup executable and test with it. 

    I recently discovered that build-tools can be used to specify
dependencies on internal executables (haskell#220).  This means that
we can make a nice improvement to the package-tests test suite:
instead of manually building a Setup.hs script ourselves,
we can add one to the Cabal file for Cabal, and have the
test suite have a build-tools dependency on it.

Perhaps the only objection to this is that the Cabal *library*
now has an executable cabal-setup.  Maybe with some buildable
shenanigans we can make it so that we never build this executable
unless the user asks for it, or the test suite is enabled.
Alternately, cabal-setup is a generally handy executable to have
around.

Signed-off-by: Edward Z. Yang <[email protected]>
    @ezyang
    ezyang committed Mar 31, 2016
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