Souper is a very experimental package that's only useful for for
compiler hackers or people who are doing PhDs. The support/cost ratio of
keeping such a package probably isn't very good.
More importantly, this puts us one step closer to deleting
llvmPackages_4, as this is one of the only two remaining packages using
it. Deleting these older LLVM packages would be far more useful than the
value Souper currently provides.
Current versions of Souper support more recent LLVM versions anyway, so
this expression could be resurrected. But it might be better to place it
in the Nix User Archive (NUR), perhaps.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
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