On 06/05/2005, at 2:41 AM, Malcolm Wallace wrote:
If so, how do Windows users deal with having more than one version of ghc installed simultaneously? Is this just a bug/oversight that can be fixed?
I'm not on my Windows box at the moment, but If I Remember Correctly, GHC gets installed to a C:\ghc\ghc-{version} directory by default. So, you should be able to install two versions of ghc to e.g. C:\ghc \ghc-6.2.2 and C:\ghc\ghc-6.4.
To manage the two different versions, you might be able to use a utility such as Junction[1] to create a "symlink" (a junction, in NTFS parlance) to the proper GHC directory. Here's the idea:
* Add a directory named e.g. C:\ghc\working to your %PATH%.
* Junction C:\ghc\working to C:\ghc\ghc-6.4 if you want to use GHC 6.4, or junction it to C:\ghc\working\ghc-6.2.2 if you want to use GHC 6.2.2.
* Write some small batch files to switch between the two directories if you need to do it often.
I guess you could also just rename all the .exe's in the GHC install directories to have -6.2.2. and -6.4 suffixes, but I dunno if that'll break anything.
(Note that I haven't tried any of this, but I see no reason why it wouldn't work.)
1. http://www.sysinternals.com/ntw2k/source/misc.shtml#junction
-- % Andre Pang : trust.in.love.to.save <http://www.algorithm.com.au/>
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