RVM (at http://rvm.beginrescueend.com) is a rather nice tool for
managing multiple ruby installations - it gives support for switching
between ruby environments (similar to gcc_select and friends), and
also exporting lists of packages so that you can easily bring up a
given set of gems in any of the interpreters.
Do we have any similar system for ghc/cabal? I quite frequently find
myself switching between 6.10 and 6.12 for various things, and it's
always a bit painful to get your environment up to speed. Is there a
golden road for this stuff, or do the compiler hackers here just munge
the PATH?
cheers
Mark
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