[Haskell-cafe] Confusions about the Haskell Platform (for Mac)

[Ivan Lazar Miljenovic]

Malcolm Wallace <malcolm.wallace at cs.york.ac.uk> writes:
> The Haskell Platform is not like a standard user application, where it
> would be reasonable to have only one version installed at a time.

As far as I know, most Linux distributions only let you install one
version of GHC at a time; we do this with Gentoo because despite there
being some distribution-specific architecture in place to be able to
switch between compilers (used for GCC, Ruby, Python, etc.) we haven't
resolved how to deal with dependency problems when a library was built
with one version of GHC and then you try to build something that depends
upon it with another version of GHC (since the package manager _knows_
that the dependency is installed, yet GHC is vehement that it knows
nothing about it).

-- 
Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com
IvanMiljenovic.wordpress.com