Re: [Haskell-cafe] multi-ghc: Managing Multiple GHC Distributions

On Thu, Apr 8, 2010 at 14:00, Bernie Pope wrote:

On 8 April 2010 19:00, Sean Leather wrote:

...

I created a few tools to help me manage multiple GHC distributions in a Bash shell environment. Perhaps it's useful to others.

http://github.com/spl/multi-ghc

Feedback welcome. I'd also like to know if something similar exists.

I wonder if you could achieve the desired result with the "Modules Project":

http://modules.sourceforge.net/

We use it at work for managing multiple versions of lots of different programs on a shared machine.

It looks interesting! Thanks. It makes me sad to see it written in Tcl. I spent way too much time with the language at my last job and did not enjoy it. But I grant that that is not a reason to avoid using it. I actually started out doing as they do, changing the PATH, but I decided that was not a great solution for two reasons: (1) It's inflexible and precludes the ability to set my PATH as I like. (2) It requires sourcing a script instead of executing it. I didn't like having no separation between my environment and the script's environment. It was too easy to introduce spurious environment variables. It would be nice if such a tool can potentially be written to work on Windows as well. Regards, Sean