>From my $0.2 experience, if you are planning of having multiple GHC installation, it would be better to do a fresh install using the bootstrapped GHC you can find on the website. Roughly I have done this way (on my Mac and on My EC2 instance):<div>
<br></div><div>(inside a ghc bootstrapped folder)</div><div>./configure --prefix=~/Library/Haskell/ghc-xxx (where xxx is the version)</div><div>make install</div><div><br></div><div>(then inside ~/Library/Haskell)</div><div>
ln -s ghc-xxx current</div><div>ln -s current/bin bin</div><div><br></div><div>This way my current GHC is pointing to current inside ~/Library/Haskell/current and my bin are updated accordingly (make sure to add /bin to your $PATH!). Then you install cabal-install and you are pretty much sorted. The advantage of this approach is that you have the control over the installation process, but other suggestion (like Alp&#39;s one) are pretty good too. Mostly depends on what you think will work best for you :)</div>
<div><br></div><div>A.<br><br><div class="gmail_quote">On 11 March 2013 11:33, Alp Mestanogullari <span dir="ltr">&lt;<a href="mailto:alpmestan@gmail.com" target="_blank">alpmestan@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">I don&#39;t think so. However, you can install the OS X binaries for ghc 7.6.2 and make that sit just next to your Haskell Platform install. You can even use your existing cabal-install to install packages for the freshly installed ghc by doing &#39;cabal install foo --with-ghc=/path/to/ghc&#39;. Just watch which ghc does become the default (it&#39;s a matter of replacing a symlink) and that it satisfies you.</div>


<div class="gmail_extra"><div><div class="h5"><br><br><div class="gmail_quote">On Thu, Mar 7, 2013 at 10:50 PM, Graham Klyne <span dir="ltr">&lt;<a href="mailto:GK@ninebynine.org" target="_blank">GK@ninebynine.org</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Hi,<br>
<br>
I have Haskell Platform with GHC[i] 7.4.2 installed on a MacOS system.  There&#39;s a problem with the handling of certain Markdown constructs in literate Haskell (lines starting with &#39;#&#39;) that I understand is fixed in 7.6.2.<br>



<br>
Therefore, I&#39;d like to be able to update my GHC installation to 7.6.2.  But I haven&#39;t yet been able to find any instructions about how to upgrade an existing GHC installation.  Am I missing something?<br>
<br>
#g<br>
--<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br>Alp Mestanogullari
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