you can: mv /Library/Frameworks/GHC.framework /Library/Frameworks/GHC.framework.2 then install GHC 7 just toggle between those paths to switch version ... On Tue, Nov 2, 2010 at 1:07 AM, Edward Amsden wrote:

I'd like to install the GHC 7.0.1 RC on my mac (Snow Leopard, x86_64), but I don't want it to run over my current GHC 6.12.2 install.

If I use the .pkg installer, it doesn't allow me to select the destination, and I worry that it will overwrite my 6.12.2 install.

If I try to build from source, that requires me to use my current GHC, which (as I understand) would build for 32 bit.

What other options do I have, or am I misunderstanding something? ------ Edward Amsden Undergraduate Computer Science Rochester Institute of Technology _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

-- jinjing