Haskell Platform universe

Mikhail Glushenkov the.dead.shall.rise at gmail.com
Mon May 4 23:55:41 EDT 2009

Hi Bulat,

Bulat Ziganshin <bulat.ziganshin at ...> writes:

> Hello Haskell,
> i just installed Windows Haskell Platform RC. it have created
> "Start Menu\Haskell Platform\GHC 6.10.2" item, that forced me to think
> deeper about HP universe

Does it still use "Start Menu\Haskell Platform" ? I thought that
I've fixed that. On my machine, it creates "Start
Menu\GHC". Which version of Windows are you using?
> yes, we decided that HP will include up-to-date GHC and some set of
> libraries. but how different HP versions will coexist?
> one model is that every HP is separate universe, with its own GHC and
> libs carried - this case menu item (and disk directory) should be
> called something like "Start Menu\Haskell Platform\2009.0.0"

The current plan is to allow different versions to coexist (I
think we even have a ticket on this issue).

For example, the current default disk directory is
"$PROGRAMFILES\Haskell Platform\$PLATFORM_VERSION". So, 2009.2.0
will be installed to "Program Files\Haskell Platform\2009.2.0", and
2009.2.1 will live under "Program Files\Haskell Platform\2009.2.1".

I'll probably change the default Start Menu directory in the next
release to "Haskell Platform\$PLATFORM_VERSION" too. However,
there will still remain PATH and registry conflicts -
coincidentally, they'll have to be fixed to make the Haskell
Platform installer coexist nicely with WinHugs and other related
tools (this is also scheduled for the next release).

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