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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Friends<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">The status of the GHC 7.8 release is here
<a href="https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8/RC2">https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8/RC2</a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Alas we are currently stalled on #8870, #8834: we are getting seg-faults on Windows.  (For example, on my laptop, the stage2 compiler seg-faults when compiling some (but
 not all) files.  Although few people develop GHC on Windows, many people *<b>use</b>* GHC on Windows, so we can’t really release in this state.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">We need help!  Austin is trying, but it’s all working on his Windows build.   He’s trying to get more machines to see if he can reproduce the failure there.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Does anyone feel able to help?  Even git-bisecting to find the offending commit would be a huge help.  In principle I can do that (at two hours per bisection) but I was defeated
 by an out-of-sync Haddock.  I need to know how to remove Haddock from the build altogether.  But others are far more skilled than me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">On #8834 Simon M speculates that we may have the callee-saves register wrong on Win64.  Does anyone feel up to looking into that?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Until we find what’s going on, 7.8 is stalled.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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