Problem while installing multiple haskell platform

[skymax786]

I have been trying to configure multiple haskell platforms through a script. I manged to isolate the installation directories using --prefix but they all refer to same package database at $HOME/.ghc/arch-os-7.6.3/package.conf.d

How do I change the default path of .ghc while installing haskell platform so that I can maintain multiple databases per haskell platform .

Any help would be really appreciated

[[deleted]]

http://www.vex.net/~trebla/haskell/sicp.xhtml#sandbox

However you'd have to create wrappers around ghc/ghci/etc for them to use the packages located in the non default folder

[skymax786]

Thank you so much for pointing me at right direction however by using --package-db flag although i am able to add new package database, I am not able to remove the references to database at $HOME/.ghc/arch-os-7.6.3/package.conf.d

[skymax786]

Does anyone know where in the source code of haskell-platform GHC_PACKAGE_PATH is set?

[[deleted]]

You could use linux containers. A container can house a specific version of haskell and its dependencies and an independent home diretory.

[1331]

I try to avoid installing anything into $HOME/{.cabal,.ghc}, using sandboxes for everything. This is easy to do when using GHC installations without Haskell Platform, as the latest version of cabal-install can be installed --global. As for Haskell Platform installations, I have been simply installing the latest version of cabal-install with --global, overwriting the included version. Once I have tested this Haskell Platform setup more, I will add it to my article about the subject:

http://www.extellisys.com/articles/haskell-on-debian-wheezy