change location of user's package directory
Albert Y. C. Lai
trebla at vex.net
Fri Jul 26 00:02:05 CEST 2013
On 13-07-25 03:14 PM, harry wrote:
> How can I change the location that ghc and ghc-pkg use for the user's package
> directory? I'm running GHC in a very restricted environment where I don't
> have access to $HOME, but I can use specific subdirectories.
Cannot. But you have another option. GHC and cabal-install support
further package databases than global and user.
mkdir /joy (or other ways to make /joy exist and be empty)
ghc-pkg --package-db=/joy recache
Note: two hyphens, -- not -
cabal --package-db=/joy --prefix=/delight install acme-dont
Note: you must provide a custom --prefix. The default is $HOME/.cabal
which is exactly what you can't use.
ghc-pkg --global --package-db=/joy list
ghc-pkg --package-db=/joy unregister acme-dont
However, beware of http://ghc.haskell.org/trac/ghc/ticket/5442
To ghc or ghci:
Note: one hyphen: - not --
(Don't you love to memorize random conventions.)
(In older versions of GHC, it was even better:
Don't you love to memorize random conventions.)
Read the full story in GHC User's Guide section 4.9 "Packages". It comes
with GHC on your hard disk.
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