[Haskell-cafe] ANNOUNCE: Utrecht Haskell Compiler (UHC) --
duncan.coutts at worc.ox.ac.uk
Sun Apr 19 05:10:55 EDT 2009
On Sun, 2009-04-19 at 10:02 +0200, Thomas Davie wrote:
> >> It really rather makes "cabal install" rather odd – because it
> >> doesn't actually install anything you can use without providing extra
> >> options!
> > It should work fine, you'll need to give more details.
> This has been the result, at least every time I've installed ghc:
> $ cabal install xyz
So this does a per-user install.
> $ runhaskell Setup.hs configure -- where abc depends on xyz
This does a global install. Global packages cannot depend on user
packages. You have two choices:
$ cabal configure
because the cabal program does --user installs by default
$ runhaskell Setup.hs configure --user
which explicitly does a --user install.
The reason for this confusion is because the original runghc Setup
interface started with global installs and we can't easily change that
default. On the other hand, per-user installs are much more convenient
so that's the sensible default for the 'cabal' command line program.
Personally I just always use the 'cabal' program and never use the
runghc Setup interface. There's almost never any need to use the runghc
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