Make testing dynlibs on Windows work
In http://www.haskell.org/pipermail/cvs-ghc/2010-January/052238.html Duncan writes:
Management of shared libs on Windows is going to be a bit of a
pain. For the purposes of testing we will want to just modify the
%PATH% to include the lib dir containing the dlls. This should be
enough for the testsuite, to ensure no regressions.
Ian: could you look at this? We'll want all the dlls installed into
the ghc lib dir I think (or a subdir if you prefer). Then the
testsuite on Windows would need to add that directory to the %PATH%
so that executables generated by ghc will be able to find the dlls.