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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Very good! This one is perhaps a missing piece, if you are saying that a Windows user cannot use GHC without MSYS:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt">• On Windows, it does not provide a complete environment (missing MSYS).<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">On the other hand these three are examples of HP getting in the way:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt">• By placing a large number of packages in the global package database, Haskell Platform installations are more easily corrupted.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">• The choice of package versions conflicts with the needs of many commonly used packages.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">• Some of the package versions included with the platform have known and severe bugs, and cannot be reliably upgraded.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">My question was: can they be fixed so that HP does not get in the way? E.g. if we solve the multiple-versions-of-packages problem with Cabal (which Duncan in a separate
thread says we can), then that would solve the first two; and for the third, I guess the solution is to release a new version of HP.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Mike Meyer [mailto:mwm@mired.org]
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<b>Sent:</b> 25 March 2015 09:30<br>
<b>To:</b> Simon Peyton Jones<br>
<b>Cc:</b> Mark Lentczner; Gershom B; Manuel M T Chakravarty; haskell-platform@projects.haskell.org; haskell-infrastructure@community.galois.com; Duncan Coutts; ghc-devs@haskell.org; Haskell Libraries<br>
<b>Subject:</b> Re: wither the Platform<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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On Wed, Mar 25, 2015 at 4:09 AM, Simon Peyton Jones <<a href="mailto:simonpj@microsoft.com" target="_blank">simonpj@microsoft.com</a>> wrote:<o:p></o:p></p>
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<span style="font-family:"Calibri",sans-serif">So that was the plan. I still think it’s a good plan. But it clearly is not working well, and I’m hazy about why. Possible reasons:</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Possibly relevant is the stackage commentary on HP at <a href="http://www.stackage.org/install#why-not-haskell-platform">
http://www.stackage.org/install#why-not-haskell-platform</a>:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">• On Windows, it does not provide a complete environment (missing MSYS).<o:p></o:p></p>
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<p class="MsoNormal">• By placing a large number of packages in the global package database, Haskell Platform installations are more easily corrupted.<o:p></o:p></p>
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<p class="MsoNormal">• The choice of package versions conflicts with the needs of many commonly used packages.<o:p></o:p></p>
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<p class="MsoNormal">• Some of the package versions included with the platform have known and severe bugs, and cannot be reliably upgraded.<o:p></o:p></p>
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